initial import of NetBSD tree

38 files changed, 14255 insertions, 0 deletions

diff --git a/lib/libedit/Makefile b/lib/libedit/Makefile
new file mode 100644
index 00000000000..b67c748090d
--- /dev/null
+++ b/lib/libedit/Makefile
@@ -0,0 +1,59 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/4/93
+
+LIB=	edit
+
+OSRCS=	chared.c common.c el.c emacs.c hist.c key.c map.c parse.c \
+	prompt.c read.c refresh.c search.c sig.c term.c tty.c vi.c \
+	help.c fcns.c
+
+# For speed and debugging
+#SRCS=   ${OSRCS} tokenizer.c history.c
+# For protection
+SRCS=	editline.c tokenizer.c history.c
+
+CLEANFILES+=common.h emacs.h fcns.h help.h vi.h help.c fcns.c editline.c
+CFLAGS+=-I. -I${.CURDIR} 
+CFLAGS+=#-DDEBUG_TTY -DDEBUG_KEY -DDEBUG_READ -DDEBUG -DDEBUG_REFRESH
+CFLAGS+=#-DDEBUG_PASTE
+
+AHDR=vi.h emacs.h common.h 
+ASRC=${.CURDIR}/vi.c ${.CURDIR}/emacs.c ${.CURDIR}/common.c
+
+vi.h: vi.c makelist
+	sh ${.CURDIR}/makelist -h ${.CURDIR}/vi.c > ${.TARGET}
+
+emacs.h: emacs.c makelist
+	sh ${.CURDIR}/makelist -h ${.CURDIR}/emacs.c > ${.TARGET}
+
+common.h: common.c makelist
+	sh ${.CURDIR}/makelist -h ${.CURDIR}/common.c > ${.TARGET}
+
+fcns.h: ${AHDR} makelist
+	sh ${.CURDIR}/makelist -fh ${AHDR} > ${.TARGET}
+
+fcns.c: ${AHDR} fcns.h makelist
+	sh ${.CURDIR}/makelist -fc ${AHDR} > ${.TARGET}
+
+help.c: ${ASRC} makelist 
+	sh ${.CURDIR}/makelist -bc ${ASRC} > ${.TARGET}
+
+help.h: ${ASRC} makelist
+	sh ${.CURDIR}/makelist -bh ${ASRC} > ${.TARGET}
+
+editline.c: ${OSRCS}
+	sh ${.CURDIR}/makelist -e ${.ALLSRC:T} > ${.TARGET}
+
+.depend: vi.h emacs.h common.h fcns.h help.h help.c
+all: vi.h emacs.h common.h fcns.h help.h help.c
+
+
+test:	libedit.a test.o 
+	${CC} ${CFLAGS} ${.ALLSRC} -o ${.TARGET} libedit.a ${LDADD} -ltermcap
+
+beforeinstall:
+	-cd ${.CURDIR}; cmp -s histedit.h ${DESTDIR}/usr/include/histedit.h > \
+	    /dev/null 2>&1 || \
+	    install -c -o ${BINOWN} -g ${BINGRP} -m 444 histedit.h \
+	    ${DESTDIR}/usr/include
+
+.include <bsd.lib.mk>
diff --git a/lib/libedit/TEST/test.c b/lib/libedit/TEST/test.c
new file mode 100644
index 00000000000..f456f51277c
--- /dev/null
+++ b/lib/libedit/TEST/test.c
@@ -0,0 +1,213 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1992, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)test.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * test.c: A little test program
+ */
+#include "sys.h"
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <ctype.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+
+#include "histedit.h"
+#include "tokenizer.h"
+
+static int continuation = 0;
+static EditLine *el = NULL;
+
+static char *
+/*ARGSUSED*/
+prompt(el)
+    EditLine *el;
+{
+    static char a[] = "Edit$";
+    static char b[] = "Edit>";
+    return continuation ? b : a;
+}
+
+static void
+sig(i)
+    int i;
+{
+    (void) fprintf(stderr, "Got signal %d.\n", i);
+    el_reset(el);
+}
+
+static unsigned char
+/*ARGSUSED*/
+complete(el, ch)
+    EditLine *el;
+    int ch;
+{
+    DIR *dd = opendir("."); 
+    struct dirent *dp;
+    const char* ptr;
+    const LineInfo *lf = el_line(el);
+    int len;
+
+    /*
+     * Find the last word
+     */
+    for (ptr = lf->cursor - 1; !isspace(*ptr) && ptr > lf->buffer; ptr--)
+	continue;
+    len = lf->cursor - ++ptr;
+
+    for (dp = readdir(dd); dp != NULL; dp = readdir(dd)) {
+	if (len > strlen(dp->d_name))
+	    continue;
+	if (strncmp(dp->d_name, ptr, len) == 0) {
+	    closedir(dd);
+	    if (el_insertstr(el, &dp->d_name[len]) == -1)
+		return CC_ERROR;
+	    else
+		return CC_REFRESH;
+	}
+    }
+
+    closedir(dd);
+    return CC_ERROR;
+}
+
+int
+/*ARGSUSED*/
+main(argc, argv)
+    int argc;
+    char *argv[];
+{
+    int num;
+    const char *buf;
+    Tokenizer *tok;
+    History *hist;
+
+    (void) signal(SIGINT, sig);
+    (void) signal(SIGQUIT, sig);
+    (void) signal(SIGHUP, sig);
+    (void) signal(SIGTERM, sig);
+
+    hist = history_init();		/* Init the builtin history	*/
+    history(hist, H_EVENT, 100);	/* Remember 100 events		*/
+
+    tok  = tok_init(NULL);		/* Initialize the tokenizer	*/
+
+    el = el_init(*argv, stdin, stdout);	/* Initialize editline		*/
+
+    el_set(el, EL_EDITOR, "vi");	/* Default editor is vi 	*/
+    el_set(el, EL_SIGNAL, 1);		/* Handle signals gracefully	*/
+    el_set(el, EL_PROMPT, prompt);	/* Set the prompt function	*/
+
+    /* Tell editline to use this history interface			*/
+    el_set(el, EL_HIST, history, hist);
+
+    /* Add a user-defined function 					*/
+    el_set(el, EL_ADDFN, "ed-complete", "Complete argument", complete);
+
+    el_set(el, EL_BIND, "^I", "ed-complete", NULL);/* Bind tab to it 	*/
+
+    /*
+     * Bind j, k in vi command mode to previous and next line, instead
+     * of previous and next history.
+     */
+    el_set(el, EL_BIND, "-a", "k", "ed-prev-line", NULL);
+    el_set(el, EL_BIND, "-a", "j", "ed-next-line", NULL);
+
+    /*
+     * Source the user's defaults file.
+     */
+    el_source(el, NULL);
+
+    while ((buf = el_gets(el, &num)) != NULL && num != 0)  {
+	int ac;
+	char **av;
+#ifdef DEBUG
+	(void) fprintf(stderr, "got %d %s", num, buf);
+#endif
+	if (!continuation && num == 1)
+	    continue;
+	if (tok_line(tok, buf, &ac, &av) > 0) {
+	    history(hist, continuation ? H_ADD : H_ENTER, buf);
+	    continuation = 1;
+	    continue;
+	}
+	history(hist, continuation ? H_ADD : H_ENTER, buf);
+
+	continuation = 0;
+	if (el_parse(el, ac, av) != -1) {
+	    tok_reset(tok);
+	    continue;
+	}
+
+	switch (fork()) {
+	case 0:
+	    execvp(av[0], av);
+	    perror(av[0]);
+	    _exit(1);
+	    /*NOTREACHED*/
+	    break;
+
+	case -1:
+	    perror("fork");
+	    break;
+
+	default:
+	    if (wait(&num) == -1)
+		perror("wait");
+	    (void) fprintf(stderr, "Exit %x\n", num);
+	    break;
+	}
+	tok_reset(tok);
+    }
+
+    el_end(el);
+    tok_end(tok);
+    history_end(hist);
+
+    return 0;
+}
diff --git a/lib/libedit/chared.c b/lib/libedit/chared.c
new file mode 100644
index 00000000000..5a393a76248
--- /dev/null
+++ b/lib/libedit/chared.c
@@ -0,0 +1,639 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)chared.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/* 
+ * chared.c: Character editor utilities
+ */
+#include "sys.h"
+
+#include <stdlib.h>
+#include "el.h"
+
+/* cv_undo():
+ *	Handle state for the vi undo command
+ */
+protected void
+cv_undo(el, action, size, ptr)
+    EditLine *el;
+    int action, size;
+    char *ptr;
+{
+    c_undo_t *vu = &el->el_chared.c_undo;
+    vu->action = action;
+    vu->ptr    = ptr;
+    vu->isize  = size;
+    (void) memcpy(vu->buf, vu->ptr, size);
+#ifdef DEBUG_UNDO
+    (void) fprintf(el->el_errfile, "Undo buffer \"%s\" size = +%d -%d\n",
+		   vu->ptr, vu->isize, vu->dsize);
+#endif
+}
+
+
+/* c_insert(): 
+ *	Insert num characters
+ */
+protected void
+c_insert(el, num)
+    EditLine *el;
+    int num;
+{
+    char *cp;
+
+    if (el->el_line.lastchar + num >= el->el_line.limit)
+	return;			/* can't go past end of buffer */
+
+    if (el->el_line.cursor < el->el_line.lastchar) {	
+	/* if I must move chars */
+	for (cp = el->el_line.lastchar; cp >= el->el_line.cursor; cp--)
+	    cp[num] = *cp;
+    }
+    el->el_line.lastchar += num;
+} /* end c_insert */
+
+
+/* c_delafter():
+ *	Delete num characters after the cursor
+ */
+protected void
+c_delafter(el, num)	
+    EditLine *el;
+    int num;
+{
+
+    if (el->el_line.cursor + num > el->el_line.lastchar)
+	num = el->el_line.lastchar - el->el_line.cursor;
+
+    if (num > 0) {			
+	char *cp;
+
+	if (el->el_map.current != el->el_map.emacs) 
+	    cv_undo(el, INSERT, num, el->el_line.cursor);
+
+	for (cp = el->el_line.cursor; cp <= el->el_line.lastchar; cp++)
+	    *cp = cp[num];
+
+	el->el_line.lastchar -= num;
+    }
+}
+
+
+/* c_delbefore():
+ *	Delete num characters before the cursor
+ */
+protected void
+c_delbefore(el, num)
+    EditLine *el;
+    int num;
+{
+
+    if (el->el_line.cursor - num < el->el_line.buffer)
+	num = el->el_line.cursor - el->el_line.buffer;	
+
+    if (num > 0) {		
+	char *cp;
+
+	if (el->el_map.current != el->el_map.emacs) 
+	    cv_undo(el, INSERT, num, el->el_line.cursor - num);
+
+	for (cp = el->el_line.cursor - num; cp <= el->el_line.lastchar; cp++)
+	    *cp = cp[num];
+
+	el->el_line.lastchar -= num;
+    }
+}
+
+
+/* ce__isword():
+ *	Return if p is part of a word according to emacs
+ */
+protected int
+ce__isword(p) 
+    int p;
+{
+    return isalpha(p) || isdigit(p) || strchr("*?_-.[]~=", p) != NULL;
+}
+
+
+/* cv__isword():
+ *	Return if p is part of a word according to vi
+ */
+protected int
+cv__isword(p) 
+    int p;
+{
+    return !isspace(p);
+}
+
+
+/* c__prev_word():
+ *	Find the previous word
+ */
+protected char *
+c__prev_word(p, low, n, wtest) 
+    register char *p, *low;
+    register int n;
+    int (*wtest) __P((int));
+{
+    p--;
+
+    while (n--) {
+	while ((p >= low) && !(*wtest)((unsigned char) *p)) 
+	    p--;
+	while ((p >= low) && (*wtest)((unsigned char) *p)) 
+	    p--;
+    }
+
+    /* cp now points to one character before the word */
+    p++;
+    if (p < low)
+	p = low;
+    /* cp now points where we want it */
+    return p;
+}
+
+
+/* c__next_word():
+ *	Find the next word
+ */
+protected char *
+c__next_word(p, high, n, wtest)
+    register char *p, *high;
+    register int n;
+    int (*wtest) __P((int));
+{
+    while (n--) {
+	while ((p < high) && !(*wtest)((unsigned char) *p)) 
+	    p++;
+	while ((p < high) && (*wtest)((unsigned char) *p)) 
+	    p++;
+    }
+    if (p > high)
+	p = high;
+    /* p now points where we want it */
+    return p;
+}
+
+/* cv_next_word():
+ *	Find the next word vi style
+ */
+protected char *
+cv_next_word(el, p, high, n, wtest)
+    EditLine *el;
+    register char *p, *high;
+    register int n;
+    int (*wtest) __P((int));
+{
+    int test;
+
+    while (n--) {
+    	test = (*wtest)((unsigned char) *p);
+	while ((p < high) && (*wtest)((unsigned char) *p) == test) 
+	    p++;
+	/*
+	 * vi historically deletes with cw only the word preserving the
+	 * trailing whitespace! This is not what 'w' does..
+	 */
+	if (el->el_chared.c_vcmd.action != (DELETE|INSERT)) 
+	    while ((p < high) && isspace((unsigned char) *p)) 
+		p++;
+    }
+
+    /* p now points where we want it */
+    if (p > high)
+	return high;
+    else
+	return p;
+}
+
+
+/* cv_prev_word():
+ *	Find the previous word vi style
+ */
+protected char *
+cv_prev_word(el, p, low, n, wtest)
+    EditLine *el;
+    register char *p, *low;
+    register int n;
+    int (*wtest) __P((int));
+{
+    int test;
+
+    while (n--) {
+	p--;
+	/*
+	 * vi historically deletes with cb only the word preserving the
+	 * leading whitespace! This is not what 'b' does..
+	 */
+	if (el->el_chared.c_vcmd.action != (DELETE|INSERT)) 
+	    while ((p > low) && isspace((unsigned char) *p)) 
+		p--;
+	test = (*wtest)((unsigned char) *p);
+	while ((p >= low) && (*wtest)((unsigned char) *p) == test) 
+	    p--;
+	p++;
+	while (isspace((unsigned char) *p)) 
+		p++;
+    }
+
+    /* p now points where we want it */
+    if (p < low)
+	return low;
+    else
+	return p;
+}
+
+
+#ifdef notdef
+/* c__number():
+ *	Ignore character p points to, return number appearing after that.
+ * 	A '$' by itself means a big number; "$-" is for negative; '^' means 1.
+ * 	Return p pointing to last char used.
+ */
+protected char *
+c__number(p, num, dval)
+    char *p;	/* character position */
+    int *num;	/* Return value	*/
+    int dval;	/* dval is the number to subtract from like $-3 */
+{
+    register int i;
+    register int sign = 1;
+
+    if (*++p == '^') {
+	*num = 1;
+	return p;
+    }
+    if (*p == '$') {
+	if (*++p != '-') {
+	    *num = 0x7fffffff;	/* Handle $ */
+	    return --p;
+	}
+	sign = -1;		/* Handle $- */
+	++p;
+    }
+    for (i = 0; isdigit((unsigned char) *p); i = 10 * i + *p++ - '0')
+	continue;
+    *num = (sign < 0 ? dval - i : i);
+    return --p;
+}
+#endif
+
+/* cv_delfini():
+ *	Finish vi delete action
+ */
+protected void
+cv_delfini(el)		
+    EditLine *el;
+{
+    register int size;
+    int oaction;
+
+    if (el->el_chared.c_vcmd.action & INSERT)
+	el->el_map.current = el->el_map.key;
+
+    oaction = el->el_chared.c_vcmd.action;
+    el->el_chared.c_vcmd.action = NOP;
+
+    if (el->el_chared.c_vcmd.pos == 0) 
+	return;
+
+
+    if (el->el_line.cursor > el->el_chared.c_vcmd.pos) {
+	size = (int) (el->el_line.cursor - el->el_chared.c_vcmd.pos);
+	c_delbefore(el, size); 
+	el->el_line.cursor = el->el_chared.c_vcmd.pos;
+	re_refresh_cursor(el);
+    }
+    else if (el->el_line.cursor < el->el_chared.c_vcmd.pos) {
+	size = (int)(el->el_chared.c_vcmd.pos - el->el_line.cursor);
+	c_delafter(el, size);
+    }
+    else {
+	size = 1;
+	c_delafter(el, size);
+    }
+    switch (oaction) {
+    case DELETE|INSERT:
+	el->el_chared.c_undo.action = DELETE|INSERT;
+	break;
+    case DELETE:
+	el->el_chared.c_undo.action = INSERT;
+	break;
+    case NOP:
+    case INSERT:
+    default:
+	abort();
+	break;
+    }
+	
+
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.dsize = size;
+}
+
+
+#ifdef notdef
+/* ce__endword():
+ *	Go to the end of this word according to emacs
+ */
+protected char *
+ce__endword(p, high, n)
+    char *p, *high;
+    int n;
+{
+    p++;
+
+    while (n--) {
+	while ((p < high) && isspace((unsigned char) *p))
+	    p++;
+	while ((p < high) && !isspace((unsigned char) *p)) 
+	    p++;
+    }
+
+    p--;
+    return p;
+}
+#endif
+
+
+/* cv__endword():
+ *	Go to the end of this word according to vi
+ */
+protected char *
+cv__endword(p, high, n)
+    char *p, *high;
+    int n;
+{
+    p++;
+
+    while (n--) {
+	while ((p < high) && isspace((unsigned char) *p)) 
+	    p++;
+
+	if (isalnum((unsigned char) *p))
+	    while ((p < high) && isalnum((unsigned char) *p)) 
+		p++;
+	else
+	    while ((p < high) && !(isspace((unsigned char) *p) || 
+				   isalnum((unsigned char) *p)))
+		p++;
+    }
+    p--;
+    return p;
+}
+
+/* ch_init():
+ *	Initialize the character editor
+ */
+protected int
+ch_init(el)
+    EditLine *el;
+{
+    el->el_line.buffer              = (char *)  el_malloc(EL_BUFSIZ);
+    (void) memset(el->el_line.buffer, 0, EL_BUFSIZ);
+    el->el_line.cursor              = el->el_line.buffer;
+    el->el_line.lastchar            = el->el_line.buffer;
+    el->el_line.limit  		    = &el->el_line.buffer[EL_BUFSIZ - 2];
+
+    el->el_chared.c_undo.buf        = (char *)  el_malloc(EL_BUFSIZ);
+    (void) memset(el->el_chared.c_undo.buf, 0, EL_BUFSIZ);
+    el->el_chared.c_undo.action     = NOP;
+    el->el_chared.c_undo.isize      = 0;
+    el->el_chared.c_undo.dsize      = 0;
+    el->el_chared.c_undo.ptr        = el->el_line.buffer;
+
+    el->el_chared.c_vcmd.action     = NOP;
+    el->el_chared.c_vcmd.pos        = el->el_line.buffer;
+    el->el_chared.c_vcmd.ins        = el->el_line.buffer;
+
+    el->el_chared.c_kill.buf        = (char *)  el_malloc(EL_BUFSIZ);
+    (void) memset(el->el_chared.c_kill.buf, 0, EL_BUFSIZ);
+    el->el_chared.c_kill.mark       = el->el_line.buffer;
+    el->el_chared.c_kill.last       = el->el_chared.c_kill.buf;
+
+    el->el_map.current              = el->el_map.key;
+
+    el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */
+    el->el_state.doingarg  = 0;
+    el->el_state.metanext  = 0;
+    el->el_state.argument  = 1;
+    el->el_state.lastcmd   = ED_UNASSIGNED;
+
+    el->el_chared.c_macro.nline     = NULL;
+    el->el_chared.c_macro.level     = -1;
+    el->el_chared.c_macro.macro     = (char **) el_malloc(EL_MAXMACRO * 
+						          sizeof(char *));
+    return 0;
+}
+
+/* ch_reset():
+ *	Reset the character editor
+ */
+protected void
+ch_reset(el)
+    EditLine *el;
+{
+    el->el_line.cursor              = el->el_line.buffer;
+    el->el_line.lastchar            = el->el_line.buffer;
+
+    el->el_chared.c_undo.action     = NOP;
+    el->el_chared.c_undo.isize      = 0;
+    el->el_chared.c_undo.dsize      = 0;
+    el->el_chared.c_undo.ptr        = el->el_line.buffer;
+
+    el->el_chared.c_vcmd.action     = NOP;
+    el->el_chared.c_vcmd.pos        = el->el_line.buffer;
+    el->el_chared.c_vcmd.ins        = el->el_line.buffer;
+
+    el->el_chared.c_kill.mark       = el->el_line.buffer;
+
+    el->el_map.current              = el->el_map.key;
+
+    el->el_state.inputmode = MODE_INSERT; /* XXX: save a default */
+    el->el_state.doingarg  = 0;
+    el->el_state.metanext  = 0;
+    el->el_state.argument  = 1;
+    el->el_state.lastcmd   = ED_UNASSIGNED;
+
+    el->el_chared.c_macro.level     = -1;
+
+    el->el_history.eventno = 0;
+}
+
+
+/* ch_end():
+ *	Free the data structures used by the editor
+ */
+protected void
+ch_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_line.buffer);
+    el->el_line.buffer = NULL;
+    el->el_line.limit = NULL;
+    el_free((ptr_t) el->el_chared.c_undo.buf);
+    el->el_chared.c_undo.buf = NULL;
+    el_free((ptr_t) el->el_chared.c_kill.buf);
+    el->el_chared.c_kill.buf = NULL;
+    el_free((ptr_t) el->el_chared.c_macro.macro);
+    el->el_chared.c_macro.macro = NULL;
+    ch_reset(el);
+}
+
+
+/* el_insertstr():
+ *	Insert string at cursorI
+ */
+public int
+el_insertstr(el, s)
+    EditLine *el;
+    char   *s;
+{
+    int len;
+
+    if ((len = strlen(s)) == 0)
+	return -1;
+    if (el->el_line.lastchar + len >= el->el_line.limit)
+	return -1;
+
+    c_insert(el, len);
+    while (*s)
+	*el->el_line.cursor++ = *s++;
+    return 0;
+}
+
+
+/* el_deletestr():
+ *	Delete num characters before the cursor
+ */
+public void
+el_deletestr(el, n)
+    EditLine *el;
+    int     n;
+{
+    if (n <= 0)
+	return;
+
+    if (el->el_line.cursor < &el->el_line.buffer[n]) 
+	return;
+
+    c_delbefore(el, n);		/* delete before dot */
+    el->el_line.cursor -= n;
+    if (el->el_line.cursor < el->el_line.buffer)
+	el->el_line.cursor = el->el_line.buffer;
+}
+
+/* c_gets():
+ *	Get a string
+ */
+protected int
+c_gets(el, buf)
+    EditLine *el;
+    char *buf;
+{
+    char ch;
+    int len = 0;
+
+    for (ch = 0; ch == 0;) {
+	if (el_getc(el, &ch) != 1)
+	    return ed_end_of_file(el, 0);
+	switch (ch) {
+	case 0010:	/* Delete and backspace */
+	case 0177:
+	    if (len > 1) {
+		*el->el_line.cursor-- = '\0';
+		el->el_line.lastchar = el->el_line.cursor;
+		buf[len--] = '\0';
+	    }
+	    else {
+		el->el_line.buffer[0] = '\0';
+		el->el_line.lastchar = el->el_line.buffer;
+		el->el_line.cursor = el->el_line.buffer;
+		return CC_REFRESH;
+	    }
+	    re_refresh(el);
+	    ch = 0;
+	    break;
+
+	case 0033:	/* ESC */
+	case '\r':	/* Newline */
+	case '\n':
+	    break;
+
+	default:
+	    if (len >= EL_BUFSIZ)
+		term_beep(el);
+	    else {
+		buf[len++] = ch;
+		*el->el_line.cursor++ = ch;
+		el->el_line.lastchar = el->el_line.cursor;
+	    }
+	    re_refresh(el);
+	    ch = 0;
+	    break;
+	}
+    }
+    buf[len] = ch;
+    return len;
+}
+
+
+/* c_hpos():
+ *	Return the current horizontal position of the cursor
+ */
+protected int
+c_hpos(el)
+    EditLine *el;
+{
+    char *ptr;
+
+    /*
+     * Find how many characters till the beginning of this line.
+     */
+    if (el->el_line.cursor == el->el_line.buffer)
+	return 0;
+    else {
+	for (ptr = el->el_line.cursor - 1; 
+	     ptr >= el->el_line.buffer && *ptr != '\n';
+	     ptr--)
+	    continue;
+	return el->el_line.cursor - ptr - 1;
+    }
+}
diff --git a/lib/libedit/chared.h b/lib/libedit/chared.h
new file mode 100644
index 00000000000..20da6c87a6d
--- /dev/null
+++ b/lib/libedit/chared.h
@@ -0,0 +1,158 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)chared.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.chared.h: Character editor interface
+ */
+#ifndef _h_el_chared
+#define _h_el_chared
+
+#include <ctype.h>
+#include <string.h>
+
+#include "histedit.h"
+
+#define EL_MAXMACRO 10
+
+/*
+ * This is a issue of basic "vi" look-and-feel. Defining VI_MOVE works
+ * like real vi: i.e. the transition from command<->insert modes moves
+ * the cursor.
+ *
+ * On the other hand we really don't want to move the cursor, because 
+ * all the editing commands don't include the character under the cursor.
+ * Probably the best fix is to make all the editing commands aware of
+ * this fact.
+ */
+#define VI_MOVE
+
+
+typedef struct c_macro_t {
+    int    level;
+    char **macro;
+    char  *nline;
+} c_macro_t;
+
+/* 
+ * Undo information for both vi and emacs
+ */
+typedef struct c_undo_t {
+    int   action;
+    int   isize;
+    int   dsize;
+    char *ptr;
+    char *buf;
+} c_undo_t;
+
+/*
+ * Current action information for vi
+ */
+typedef struct c_vcmd_t {
+    int   action;
+    char *pos;
+    char *ins;
+} c_vcmd_t;
+
+/*
+ * Kill buffer for emacs
+ */
+typedef struct c_kill_t {
+    char *buf;
+    char *last;
+    char *mark;
+} c_kill_t;
+
+/*
+ * Note that we use both data structures because the user can bind
+ * commands from both editors!
+ */
+typedef struct el_chared_t {
+    c_undo_t    c_undo;
+    c_kill_t    c_kill;
+    c_vcmd_t    c_vcmd;
+    c_macro_t   c_macro;
+} el_chared_t;
+
+
+#define STReof "^D\b\b"
+#define STRQQ  "\"\""
+
+#define isglob(a) (strchr("*[]?", (a)) != NULL)
+#define isword(a) (isprint(a))
+
+#define NOP    	  0x00
+#define DELETE 	  0x01
+#define INSERT 	  0x02
+#define CHANGE 	  0x04
+
+#define CHAR_FWD	0
+#define CHAR_BACK	1
+
+#define MODE_INSERT	0
+#define MODE_REPLACE	1
+#define MODE_REPLACE_1	2
+
+#include "common.h"
+#include "vi.h"
+#include "emacs.h"
+#include "search.h"
+#include "fcns.h"
+
+
+protected int   cv__isword	__P((int));
+protected void  cv_delfini	__P((EditLine *));
+protected char *cv__endword	__P((char *, char *, int));
+protected int   ce__isword	__P((int));
+protected void  cv_undo		__P((EditLine *, int, int, char *));
+protected char *cv_next_word	__P((EditLine*, char *, char *, int, 
+				     int (*)(int)));
+protected char *cv_prev_word	__P((EditLine*, char *, char *, int,
+				     int (*)(int)));
+protected char *c__next_word	__P((char *, char *, int, int (*)(int)));
+protected char *c__prev_word	__P((char *, char *, int, int (*)(int)));
+protected void  c_insert	__P((EditLine *, int));
+protected void  c_delbefore	__P((EditLine *, int));
+protected void  c_delafter	__P((EditLine *, int));
+protected int   c_gets		__P((EditLine *, char *));
+protected int   c_hpos		__P((EditLine *));
+
+protected int   ch_init		__P((EditLine *));
+protected void  ch_reset	__P((EditLine *));
+protected void  ch_end		__P((EditLine *));
+
+#endif /* _h_el_chared */
diff --git a/lib/libedit/common.c b/lib/libedit/common.c
new file mode 100644
index 00000000000..696da528e51
--- /dev/null
+++ b/lib/libedit/common.c
@@ -0,0 +1,994 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)common.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * common.c: Common Editor functions
+ */
+#include "sys.h"
+#include "el.h"
+
+/* ed_end_of_file(): 
+ *	Indicate end of file
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_end_of_file(el, c)
+    EditLine *el;
+    int c;
+{
+    re_goto_bottom(el);
+    *el->el_line.lastchar = '\0';
+    return CC_EOF;
+}
+
+
+/* ed_insert(): 
+ *	Add character to the line
+ *	Insert a character [bound to all insert keys]
+ */
+protected el_action_t
+ed_insert(el, c)
+    EditLine *el;
+    int c;
+{
+    int i;
+
+    if (c == '\0')
+	return CC_ERROR;
+
+    if (el->el_line.lastchar + el->el_state.argument >= 
+	el->el_line.limit)
+	return CC_ERROR;	/* end of buffer space */
+
+    if (el->el_state.argument == 1) {
+	if (el->el_state.inputmode != MODE_INSERT) {
+	    el->el_chared.c_undo.buf[el->el_chared.c_undo.isize++] = 
+		*el->el_line.cursor;
+	    el->el_chared.c_undo.buf[el->el_chared.c_undo.isize] = '\0';
+	    c_delafter(el, 1);   
+    	}
+
+        c_insert(el, 1);
+
+	*el->el_line.cursor++ = c;
+	el->el_state.doingarg = 0;		/* just in case */
+	re_fastaddc(el);			/* fast refresh for one char. */
+    }
+    else {
+	if (el->el_state.inputmode != MODE_INSERT) {
+
+	    for(i = 0;i < el->el_state.argument; i++) 
+		el->el_chared.c_undo.buf[el->el_chared.c_undo.isize++] = 
+			el->el_line.cursor[i];
+
+	    el->el_chared.c_undo.buf[el->el_chared.c_undo.isize] = '\0';
+	    c_delafter(el, el->el_state.argument);   
+    	}
+
+        c_insert(el, el->el_state.argument);
+
+	while (el->el_state.argument--)
+	    *el->el_line.cursor++ = c;
+	re_refresh(el);
+    }
+
+    if (el->el_state.inputmode == MODE_REPLACE_1)
+	(void) vi_command_mode(el, 0);
+
+    return CC_NORM;
+}
+
+
+/* ed_delete_prev_word(): 
+ *	Delete from beginning of current word to cursor
+ *	[M-^?] [^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_word(el, c)
+    EditLine *el;
+    int c;
+{
+    char *cp, *p, *kp;
+
+    if (el->el_line.cursor == el->el_line.buffer)
+	return CC_ERROR;
+
+    cp = c__prev_word(el->el_line.cursor, el->el_line.buffer, 
+		      el->el_state.argument, ce__isword);
+
+    for (p = cp, kp = el->el_chared.c_kill.buf; p < el->el_line.cursor; p++)
+	*kp++ = *p;
+    el->el_chared.c_kill.last = kp;
+
+    c_delbefore(el, el->el_line.cursor - cp);	/* delete before dot */
+    el->el_line.cursor = cp;
+    if (el->el_line.cursor < el->el_line.buffer)
+	el->el_line.cursor = el->el_line.buffer;	/* bounds check */
+    return CC_REFRESH;
+}
+
+
+/* ed_delete_next_char(): 
+ *	Delete character under cursor
+ *	[^D] [x]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_next_char(el, c)
+    EditLine *el;
+    int c;
+{
+#ifdef notdef /* XXX */
+#define EL el->el_line
+fprintf(stderr, "\nD(b: %x(%s)  c: %x(%s) last: %x(%s) limit: %x(%s)\n", 
+	EL.buffer, EL.buffer, EL.cursor, EL.cursor, EL.lastchar, EL.lastchar, EL.limit, EL.limit);
+#endif
+    if (el->el_line.cursor == el->el_line.lastchar) {/* if I'm at the end */
+	if (el->el_map.type == MAP_VI) {
+	    if (el->el_line.cursor == el->el_line.buffer) {	
+		/* if I'm also at the beginning */
+#ifdef KSHVI
+		return CC_ERROR;
+#else
+		term_overwrite(el, STReof, 4);/* then do a EOF */
+		term__flush();
+		return CC_EOF;
+#endif
+	    }
+	    else  {
+#ifdef KSHVI
+		el->el_line.cursor--;
+#else
+		return CC_ERROR;
+#endif
+	    }
+	}
+	else {
+	    if (el->el_line.cursor != el->el_line.buffer)
+		el->el_line.cursor--;
+	    else
+		return CC_ERROR;
+	}
+    }
+    c_delafter(el, el->el_state.argument);	/* delete after dot */
+    if (el->el_line.cursor >= el->el_line.lastchar && el->el_line.cursor > el->el_line.buffer)
+	el->el_line.cursor = el->el_line.lastchar - 1;	/* bounds check */
+    return CC_REFRESH;
+}
+
+
+/* ed_kill_line(): 
+ *	Cut to the end of line
+ *	[^K] [^K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_kill_line(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    cp = el->el_line.cursor;
+    kp = el->el_chared.c_kill.buf;
+    while (cp < el->el_line.lastchar)
+	*kp++ = *cp++;		/* copy it */
+    el->el_chared.c_kill.last = kp;
+    el->el_line.lastchar = el->el_line.cursor; /* zap! -- delete to end */
+    return CC_REFRESH;
+}
+
+
+/* ed_move_to_end(): 
+ *	Move cursor to the end of line
+ *	[^E] [^E]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_end(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_line.cursor = el->el_line.lastchar;
+    if (el->el_map.type == MAP_VI) {
+#ifdef VI_MOVE
+	el->el_line.cursor--;
+#endif
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+    }
+    return CC_CURSOR;
+}
+
+
+/* ed_move_to_beg(): 
+ *	Move cursor to the beginning of line
+ *	[^A] [^A]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_move_to_beg(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_line.cursor = el->el_line.buffer;
+
+    if (el->el_map.type == MAP_VI) {
+        /* We want FIRST non space character */
+        while (isspace(*el->el_line.cursor)) 
+	    el->el_line.cursor++;
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+    }
+
+    return CC_CURSOR;
+}
+
+
+/* ed_transpose_chars(): 
+ *	Exchange the character to the left of the cursor with the one under it
+ *	[^T] [^T]
+ */
+protected el_action_t
+ed_transpose_chars(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor < el->el_line.lastchar) {
+	if (el->el_line.lastchar <= &el->el_line.buffer[1])
+	    return CC_ERROR;
+	else 
+	    el->el_line.cursor++;
+    }
+    if (el->el_line.cursor > &el->el_line.buffer[1]) {
+	/* must have at least two chars entered */
+	c = el->el_line.cursor[-2];
+	el->el_line.cursor[-2] = el->el_line.cursor[-1];
+	el->el_line.cursor[-1] = c;
+	return CC_REFRESH;
+    }
+    else 
+	return CC_ERROR;
+}
+
+
+/* ed_next_char(): 
+ *	Move to the right one character
+ *	[^F] [^F]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor >= el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor += el->el_state.argument;
+    if (el->el_line.cursor > el->el_line.lastchar)
+	el->el_line.cursor = el->el_line.lastchar;
+
+    if (el->el_map.type == MAP_VI)
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+
+    return CC_CURSOR;
+}
+
+
+/* ed_prev_word(): 
+ *	Move to the beginning of the current word
+ *	[M-b] [b]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.buffer)
+	return CC_ERROR;
+
+    el->el_line.cursor = c__prev_word(el->el_line.cursor, el->el_line.buffer, 
+				      el->el_state.argument, 
+				      ce__isword);
+
+    if (el->el_map.type == MAP_VI)
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+
+    return CC_CURSOR;
+}
+
+
+/* ed_prev_char(): 
+ *	Move to the left one character
+ *	[^B] [^B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor > el->el_line.buffer) {
+	el->el_line.cursor -= el->el_state.argument;
+	if (el->el_line.cursor < el->el_line.buffer)
+	    el->el_line.cursor = el->el_line.buffer;
+
+	if (el->el_map.type == MAP_VI)
+	    if (el->el_chared.c_vcmd.action & DELETE) {
+		cv_delfini(el);
+		return CC_REFRESH;
+	    }
+
+	return CC_CURSOR;
+    }
+    else 
+	return CC_ERROR;
+}
+
+
+/* ed_quoted_insert(): 
+ *	Add the next character typed verbatim
+ *	[^V] [^V]
+ */
+protected el_action_t
+ed_quoted_insert(el, c)
+    EditLine *el;
+    int c;
+{
+    int     num;
+    char    tc;
+
+    tty_quotemode(el);
+    num = el_getc(el, &tc);
+    c = (unsigned char) tc;
+    tty_noquotemode(el);
+    if (num == 1)
+	return ed_insert(el, c);
+    else
+	return ed_end_of_file(el, 0);
+}
+
+
+/* ed_digit(): 
+ *	Adds to argument or enters a digit
+ */
+protected el_action_t
+ed_digit(el, c)
+    EditLine *el;
+    int c;
+{
+    if (!isdigit(c))
+	return CC_ERROR;
+
+    if (el->el_state.doingarg) {	
+	/* if doing an arg, add this in... */
+	if (el->el_state.lastcmd == EM_UNIVERSAL_ARGUMENT)	
+	    el->el_state.argument = c - '0';
+	else {
+	    if (el->el_state.argument > 1000000)
+		return CC_ERROR;
+	    el->el_state.argument = 
+		(el->el_state.argument * 10) + (c - '0');
+	}
+	return CC_ARGHACK;
+    }
+    else {
+	if (el->el_line.lastchar + 1 >= el->el_line.limit)
+	    return CC_ERROR;
+
+	if (el->el_state.inputmode != MODE_INSERT) {
+	    el->el_chared.c_undo.buf[el->el_chared.c_undo.isize++] = 
+		*el->el_line.cursor;
+	    el->el_chared.c_undo.buf[el->el_chared.c_undo.isize] = '\0';
+	    c_delafter(el, 1);  
+    	}
+	c_insert(el, 1);
+	*el->el_line.cursor++ = c;
+	el->el_state.doingarg = 0;
+	re_fastaddc(el);
+    }
+    return CC_NORM;
+}
+
+
+/* ed_argument_digit(): 
+ *	Digit that starts argument
+ *	For ESC-n
+ */
+protected el_action_t
+ed_argument_digit(el, c)
+    EditLine *el;
+    register int c;
+{
+    if (!isdigit(c))
+	return CC_ERROR;
+
+    if (el->el_state.doingarg) {
+	if (el->el_state.argument > 1000000)
+	    return CC_ERROR;
+	el->el_state.argument = (el->el_state.argument * 10) + (c - '0');
+    }
+    else {			/* else starting an argument */
+	el->el_state.argument = c - '0';
+	el->el_state.doingarg = 1;
+    }
+    return CC_ARGHACK;
+}
+
+
+/* ed_unassigned(): 
+ *	Indicates unbound character
+ *	Bound to keys that are not assigned
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_unassigned(el, c)
+    EditLine *el;
+    int c;
+{
+    term_beep(el);
+    term__flush();
+    return CC_NORM;
+}
+
+
+/**
+ ** TTY key handling.
+ **/
+
+/* ed_tty_sigint(): 
+ *	Tty interrupt character
+ *	[^C]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigint(el, c)
+    EditLine *el;
+    int c;
+{			
+    return CC_NORM;
+}
+
+
+/* ed_tty_dsusp(): 
+ *	Tty delayed suspend character
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_dsusp(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_tty_flush_output(): 
+ *	Tty flush output characters
+ *	[^O]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_flush_output(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_tty_sigquit(): 
+ *	Tty quit character
+ *	[^\]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigquit(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_tty_sigtstp(): 
+ *	Tty suspend character
+ *	[^Z]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_sigtstp(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_tty_stop_output(): 
+ *	Tty disallow output characters
+ *	[^S]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_stop_output(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_tty_start_output(): 
+ *	Tty allow output characters
+ *	[^Q]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_tty_start_output(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_newline(): 
+ *	Execute command
+ *	[^J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_newline(el, c)
+    EditLine *el;
+    int c;
+{
+    re_goto_bottom(el);
+    *el->el_line.lastchar++ = '\n';
+    *el->el_line.lastchar = '\0';
+    if (el->el_map.type == MAP_VI)
+	el->el_chared.c_vcmd.ins = el->el_line.buffer;
+    return CC_NEWLINE;
+}
+
+
+/* ed_delete_prev_char(): 
+ *	Delete the character to the left of the cursor
+ *	[^?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_delete_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor <= el->el_line.buffer) 
+	return CC_ERROR;
+
+    c_delbefore(el, el->el_state.argument);	
+    el->el_line.cursor -= el->el_state.argument;
+    if (el->el_line.cursor < el->el_line.buffer)
+	el->el_line.cursor = el->el_line.buffer;
+    return CC_REFRESH;
+}
+
+
+/* ed_clear_screen(): 
+ *	Clear screen leaving current line at the top
+ *	[^L]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_clear_screen(el, c)
+    EditLine *el;
+    int c;
+{
+    term_clear_screen(el);	/* clear the whole real screen */
+    re_clear_display(el);		/* reset everything */
+    return CC_REFRESH;
+}
+
+
+/* ed_redisplay(): 
+ *	Redisplay everything
+ *	^R
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_redisplay(el, c)
+    EditLine *el;
+    int c;
+{
+    re_clear_lines(el);
+    re_clear_display(el);
+    return CC_REFRESH;
+}
+
+
+/* ed_start_over(): 
+ *	Erase current line and start from scratch
+ *	[^G]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_start_over(el, c)
+    EditLine *el;
+    int c;
+{
+    ch_reset(el);
+    return CC_REFRESH;
+}
+
+
+/* ed_sequence_lead_in(): 
+ *	First character in a bound sequence
+ *	Placeholder for external keys
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_sequence_lead_in(el, c)
+    EditLine *el;
+    int c;
+{
+    return CC_NORM;
+}
+
+
+/* ed_prev_history(): 
+ *	Move to the previous history line
+ *	[^P] [k]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_history(el, c)
+    EditLine *el;
+    int c;
+{
+    char    beep = 0;
+
+    el->el_chared.c_undo.action = NOP;
+    *el->el_line.lastchar = '\0';		/* just in case */
+
+    if (el->el_history.eventno == 0) {	/* save the current buffer away */
+	(void) strncpy(el->el_history.buf, el->el_line.buffer, EL_BUFSIZ);
+	el->el_history.last = el->el_history.buf + 
+		(el->el_line.lastchar - el->el_line.buffer);
+    }
+
+    el->el_history.eventno += el->el_state.argument;
+
+    if (hist_get(el) == CC_ERROR) {
+	beep = 1;
+	/* el->el_history.eventno was fixed by first call */
+	(void) hist_get(el); 
+    }
+
+    re_refresh(el);
+    if (beep)
+	return CC_ERROR;
+    else
+	return CC_NORM;	/* was CC_UP_HIST */
+}
+
+
+/* ed_next_history(): 
+ *	Move to the next history line
+ *	[^N] [j]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_history(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_chared.c_undo.action = NOP;
+    *el->el_line.lastchar = '\0';		/* just in case */
+
+    el->el_history.eventno -= el->el_state.argument;
+
+    if (el->el_history.eventno < 0) {
+	el->el_history.eventno = 0;
+	return CC_ERROR;	/* make it beep */
+    }
+
+    return hist_get(el);
+}
+
+
+/* ed_search_prev_history(): 
+ *	Search previous in history for a line matching the current
+ *	next search history [M-P] [K]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_prev_history(el, c)
+    EditLine *el;
+    int c;
+{
+    const char *hp;
+    int h;
+    bool_t    found = 0;
+
+    el->el_chared.c_vcmd.action = NOP;
+    el->el_chared.c_undo.action = NOP;
+    *el->el_line.lastchar = '\0';		/* just in case */
+    if (el->el_history.eventno < 0) {
+#ifdef DEBUG_EDIT
+	(void) fprintf(el->el_errfile, "e_prev_search_hist(): eventno < 0;\n");
+#endif
+	el->el_history.eventno = 0;
+	return CC_ERROR;
+    }
+
+    if (el->el_history.eventno == 0) {
+	(void) strncpy(el->el_history.buf, el->el_line.buffer, EL_BUFSIZ);
+	el->el_history.last = el->el_history.buf + 
+		(el->el_line.lastchar - el->el_line.buffer);
+    }
+
+
+    if (el->el_history.ref == NULL)
+	return CC_ERROR;
+
+    hp = HIST_FIRST(el);
+    if (hp == NULL)
+	return CC_ERROR;
+
+    c_setpat(el);		/* Set search pattern !! */
+
+    for (h = 1; h <= el->el_history.eventno; h++)
+	hp = HIST_NEXT(el);
+
+    while (hp != NULL) {
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+	if ((strncmp(hp, el->el_line.buffer, 
+		     el->el_line.lastchar - el->el_line.buffer) || 
+	    hp[el->el_line.lastchar-el->el_line.buffer]) && 
+	    c_hmatch(el, hp)) {
+	    found++;
+	    break;
+	}
+	h++;
+	hp = HIST_NEXT(el);
+    }
+
+    if (!found) {
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "not found\n"); 
+#endif
+	return CC_ERROR;
+    }
+
+    el->el_history.eventno = h;
+
+    return hist_get(el);
+}
+
+
+/* ed_search_next_history(): 
+ *	Search next in history for a line matching the current
+ *	[M-N] [J]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_search_next_history(el, c)
+    EditLine *el;
+    int c;
+{
+    const char *hp;
+    int h;
+    bool_t    found = 0;
+
+    el->el_chared.c_vcmd.action = NOP;
+    el->el_chared.c_undo.action = NOP;
+    *el->el_line.lastchar = '\0';		/* just in case */
+
+    if (el->el_history.eventno == 0)
+	return CC_ERROR;
+
+    if (el->el_history.ref == NULL)
+	return CC_ERROR;
+
+    hp = HIST_FIRST(el);
+    if (hp == NULL)
+	return CC_ERROR;
+
+    c_setpat(el);		/* Set search pattern !! */
+
+    for (h = 1; h < el->el_history.eventno && hp; h++) {
+#ifdef SDEBUG
+	(void) fprintf(el->el_errfile, "Comparing with \"%s\"\n", hp);
+#endif
+	if ((strncmp(hp, el->el_line.buffer, 
+		     el->el_line.lastchar - el->el_line.buffer) || 
+	     hp[el->el_line.lastchar-el->el_line.buffer]) && 
+	    c_hmatch(el, hp))
+	    found = h;
+	hp = HIST_NEXT(el);
+    }
+
+    if (!found) {		/* is it the current history number? */
+	if (!c_hmatch(el, el->el_history.buf)) {
+#ifdef SDEBUG
+	    (void) fprintf(el->el_errfile, "not found\n"); 
+#endif
+	    return CC_ERROR;
+	}
+    }
+
+    el->el_history.eventno = found;
+
+    return hist_get(el);
+}
+
+
+/* ed_prev_line():
+ *	Move up one line
+ *	Could be [k] [^p]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_prev_line(el, c)
+    EditLine *el;
+    int c;
+{
+    char *ptr;
+    int nchars = c_hpos(el);
+    
+    /*
+     * Move to the line requested
+     */
+    if (*(ptr = el->el_line.cursor) == '\n')
+	ptr--;
+
+    for (; ptr >= el->el_line.buffer; ptr--)
+	if (*ptr == '\n' && --el->el_state.argument <= 0)
+	    break;
+
+    if (el->el_state.argument > 0)
+	return CC_ERROR;
+
+    /*
+     * Move to the beginning of the line
+     */
+    for (ptr--; ptr >= el->el_line.buffer && *ptr != '\n'; ptr--)
+	continue;
+    
+    /*
+     * Move to the character requested
+     */
+    for (ptr++; 
+	 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n'; 
+	 ptr++)
+	continue;
+    
+    el->el_line.cursor = ptr;
+    return CC_CURSOR;
+}
+
+
+/* ed_next_line():
+ *	Move down one line
+ *	Could be [j] [^n]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_next_line(el, c)
+    EditLine *el;
+    int c;
+{
+    char *ptr;
+    int nchars = c_hpos(el);
+
+    /*
+     * Move to the line requested
+     */
+    for (ptr = el->el_line.cursor; ptr < el->el_line.lastchar; ptr++)
+	if (*ptr == '\n' && --el->el_state.argument <= 0)
+	    break;
+
+    if (el->el_state.argument > 0)
+	return CC_ERROR;
+
+    /*
+     * Move to the character requested
+     */
+    for (ptr++;
+	 nchars-- > 0 && ptr < el->el_line.lastchar && *ptr != '\n'; 
+    	 ptr++)
+	continue;
+    
+    el->el_line.cursor = ptr;
+    return CC_CURSOR;
+}
+
+
+/* ed_command(): 
+ *	Editline extended command
+ *	[M-X] [:]
+ */
+protected el_action_t
+/*ARGSUSED*/
+ed_command(el, c)
+    EditLine *el;
+    int c;
+{
+    char tmpbuf[EL_BUFSIZ];
+    int tmplen;
+
+    el->el_line.buffer[0] = '\0';
+    el->el_line.lastchar = el->el_line.buffer;
+    el->el_line.cursor = el->el_line.buffer;
+
+    c_insert(el, 3);	/* prompt + ": " */
+    *el->el_line.cursor++ = '\n';
+    *el->el_line.cursor++ = ':';
+    *el->el_line.cursor++ = ' ';
+    re_refresh(el);
+
+    tmplen = c_gets(el, tmpbuf);
+    tmpbuf[tmplen] = '\0';
+
+    el->el_line.buffer[0] = '\0';
+    el->el_line.lastchar = el->el_line.buffer;
+    el->el_line.cursor = el->el_line.buffer;
+
+    if (parse_line(el, tmpbuf) == -1)
+	return CC_ERROR;
+    else
+	return CC_REFRESH;
+}
diff --git a/lib/libedit/el.c b/lib/libedit/el.c
new file mode 100644
index 00000000000..7314477a69a
--- /dev/null
+++ b/lib/libedit/el.c
@@ -0,0 +1,335 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)el.c	8.2 (Berkeley) 1/3/94";
+#endif /* not lint && not SCCSID */
+
+/*
+ * el.c: EditLine interface functions
+ */
+#include "sys.h"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <string.h>
+#include <stdlib.h>
+#if __STDC__
+# include <stdarg.h>
+#else
+# include <varargs.h>
+#endif
+#include "el.h"
+
+/* el_init():
+ *	Initialize editline and set default parameters.
+ */
+public EditLine *
+el_init(prog, fin, fout)
+    const char *prog;
+    FILE *fin, *fout;
+{
+    EditLine *el = (EditLine *) el_malloc(sizeof(EditLine));
+#ifdef DEBUG
+    char *tty;
+#endif
+
+    if (el == NULL)
+	return NULL;
+
+    memset(el, 0, sizeof(EditLine));
+
+    el->el_infd  = fileno(fin);
+    el->el_outfile = fout;
+    el->el_prog = strdup(prog);
+
+#ifdef DEBUG
+    if ((tty = getenv("DEBUGTTY")) != NULL) {
+	el->el_errfile = fopen(tty, "w");
+	if (el->el_errfile == NULL) {
+		extern errno;
+		(void) fprintf(stderr, "Cannot open %s (%s).\n",
+			       tty, strerror(errno));
+		return NULL;
+	}
+    }
+    else 
+#endif
+	el->el_errfile = stderr;
+
+    /*
+     * Initialize all the modules. Order is important!!!
+     */
+    (void) term_init(el);
+    (void) tty_init(el);
+    (void) key_init(el);
+    (void) map_init(el);
+    (void) ch_init(el);
+    (void) search_init(el);
+    (void) hist_init(el);
+    (void) prompt_init(el);
+    (void) sig_init(el);
+    el->el_flags = 0;
+
+    return el;
+} /* end el_init */
+
+
+/* el_end():
+ *	Clean up.
+ */
+public void
+el_end(el)
+    EditLine *el;
+{
+    if (el == NULL)
+	return;
+
+    el_reset(el);
+
+    term_end(el);
+    tty_end(el);
+    key_end(el);
+    map_end(el);
+    ch_end(el);
+    search_end(el);
+    hist_end(el);
+    prompt_end(el);
+    sig_end(el);
+
+    el_free((ptr_t) el->el_prog);
+    el_free((ptr_t) el);
+} /* end el_end */ 
+
+
+/* el_reset():
+ *	Reset the tty and the parser
+ */
+public void
+el_reset(el)
+    EditLine *el;
+{
+    tty_cookedmode(el);
+    ch_reset(el);	/* XXX: Do we want that? */
+}
+
+
+/* el_set():
+ *	set the editline parameters
+ */
+public int
+#if __STDC__
+el_set(EditLine *el, int op, ...)
+#else
+el_set(va_alist)
+    va_dcl
+#endif
+{
+    va_list va;
+    int rv;
+#if __STDC__
+    va_start(va, op);
+#else
+    EditLine *el;
+    int op;
+
+    va_start(va);
+    el = va_arg(va, EditLine *);
+    op = va_arg(va, int);
+#endif
+    
+    switch (op) {
+    case EL_PROMPT:
+	rv = prompt_set(el, va_arg(va, el_pfunc_t));
+	break;
+
+    case EL_TERMINAL:
+	rv = term_set(el, va_arg(va, char *));
+	break;
+
+    case EL_EDITOR:
+	rv = map_set_editor(el, va_arg(va, char *));
+	break;
+
+    case EL_SIGNAL:
+	if (va_arg(va, int))
+	    el->el_flags |= HANDLE_SIGNALS;
+	else
+	    el->el_flags &= ~HANDLE_SIGNALS;
+	rv = 0;
+	break;
+
+    case EL_BIND:
+    case EL_TELLTC:
+    case EL_SETTC:
+    case EL_ECHOTC:
+    case EL_SETTY:
+	{
+	    char *argv[20];
+	    int i;
+	    for (i = 1; i < 20; i++)
+		if ((argv[i] = va_arg(va, char *)) == NULL)
+		     break;
+
+	    switch (op) {
+	    case EL_BIND:
+		argv[0] = "bind";
+		rv = map_bind(el, i, argv);
+		break;
+
+	    case EL_TELLTC:
+		argv[0] = "telltc";
+		rv = term_telltc(el, i, argv);
+		break;
+
+	    case EL_SETTC:
+		argv[0] = "settc";
+		rv = term_settc(el, i, argv);
+		break;
+
+	    case EL_ECHOTC:
+		argv[0] = "echotc";
+		rv = term_echotc(el, i, argv);
+		break;
+
+	    case EL_SETTY:
+		argv[0] = "setty";
+		rv = tty_stty(el, i, argv);
+		break;
+
+	    default:
+		rv = -1;
+		abort();
+		break;
+	    }
+	}
+	break;
+    
+    case EL_ADDFN:
+	{
+	    char 	*name = va_arg(va, char *);
+	    char 	*help = va_arg(va, char *);
+	    el_func_t    func = va_arg(va, el_func_t);
+	    rv = map_addfunc(el, name, help, func);
+	}
+	break;
+
+    case EL_HIST:
+	{
+	    hist_fun_t func = va_arg(va, hist_fun_t);
+	    ptr_t      ptr = va_arg(va, char *);
+	    rv = hist_set(el, func, ptr);
+	}
+	break;
+
+    default:
+	rv = -1;
+    }
+
+    va_end(va);
+    return rv;
+} /* end el_set */
+
+
+/* el_line():
+ *	Return editing info
+ */
+public const LineInfo *
+el_line(el)
+    EditLine *el;
+{
+    return (const LineInfo *) &el->el_line;
+}
+
+static const char elpath[] = "/.editrc";
+
+/* el_source():
+ *	Source a file
+ */
+public int
+el_source(el, fname)
+    EditLine *el;
+    const char *fname;
+{
+    FILE *fp;
+    size_t len;
+    char *ptr, path[MAXPATHLEN];
+
+    if (fname == NULL) {
+	fname = &elpath[1];
+	if ((fp = fopen(fname, "r")) == NULL) {
+	    if ((ptr = getenv("HOME")) == NULL) 
+		return -1;
+	    fname = strncpy(path, ptr, MAXPATHLEN);
+	    (void) strncat(path, elpath, MAXPATHLEN);
+	    path[MAXPATHLEN-1] = '\0';
+	}
+    }
+
+    if ((fp = fopen(fname, "r")) == NULL) 
+	return -1;
+
+    while ((ptr = fgetln(fp, &len)) != NULL)
+	ptr[len - 1] = '\0';
+	if (parse_line(el, ptr) == -1) {
+	    (void) fclose(fp);
+	    return -1;
+	}
+
+    (void) fclose(fp);
+    return 0;
+}
+
+
+/* el_resize():
+ *	Called from program when terminal is resized
+ */
+public void
+el_resize(el)
+    EditLine *el;
+{
+    int lins, cols;
+    sigset_t oset, nset;
+    (void) sigemptyset(&nset);
+    (void) sigaddset(&nset, SIGWINCH);
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+    /* get the correct window size */
+    if (term_get_size(el, &lins, &cols))
+	term_change_size(el, lins, cols);
+
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
diff --git a/lib/libedit/el.h b/lib/libedit/el.h
new file mode 100644
index 00000000000..77cce15a3d4
--- /dev/null
+++ b/lib/libedit/el.h
@@ -0,0 +1,129 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)el.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.h: Internal structures.
+ */
+#ifndef _h_el
+#define _h_el
+/*
+ * Local defaults
+ */
+#define KSHVI
+#define VIDEFAULT
+#define ANCHOR
+
+#include <stdio.h>
+#include <sys/types.h>
+
+#define EL_BUFSIZ	1024		/* Maximum line size		*/
+
+#define HANDLE_SIGNALS	1
+
+typedef int bool_t;			/* True or not			*/
+
+typedef unsigned char el_action_t;	/* Index to command array	*/
+
+typedef struct coord_t {		/* Position on the screen	*/
+    int h, v;
+} coord_t;
+
+typedef struct el_line_t {
+    char *buffer, 			/* Input line 			*/
+	 *cursor, 			/* Cursor position 		*/
+	 *lastchar,			/* Last character 		*/
+	 *limit;			/* Max position			*/
+} el_line_t;
+
+/*
+ * Editor state
+ */
+typedef struct el_state_t {
+    int 	inputmode;		/* What mode are we in? 	*/
+    int 	doingarg;		/* Are we getting an argument?	*/
+    int	        argument;		/* Numeric argument 		*/
+    int		metanext;		/* Is the next char a meta char */
+    el_action_t lastcmd;		/* Previous command		*/
+} el_state_t;
+
+/*
+ * Until we come up with something better...
+ */
+#define el_malloc(a)	malloc(a)
+#define el_realloc(a,b)	realloc(a, b)
+#define el_free(a)	free(a)
+
+#include "tty.h"
+#include "prompt.h"
+#include "key.h"
+#include "term.h"
+#include "refresh.h"
+#include "chared.h"
+#include "common.h"
+#include "search.h"
+#include "hist.h"
+#include "map.h"
+#include "parse.h"
+#include "sig.h"
+#include "help.h"
+
+struct editline {
+    char	 *el_prog;	/* the program name 			*/
+    FILE         *el_outfile;	/* Stdio stuff				*/
+    FILE         *el_errfile;	/* Stdio stuff				*/
+    int           el_infd;	/* Input file descriptor		*/
+    int		  el_flags;	/* Various flags.			*/
+    coord_t       el_cursor;	/* Cursor location			*/
+    char        **el_display, 	/* Real screen image = what is there	*/
+	        **el_vdisplay;	/* Virtual screen image = what we see	*/
+
+    el_line_t     el_line;	/* The current line information		*/
+    el_state_t	  el_state;	/* Current editor state			*/
+    el_term_t     el_term;	/* Terminal dependent stuff		*/
+    el_tty_t	  el_tty;	/* Tty dependent stuff			*/
+    el_refresh_t  el_refresh;	/* Refresh stuff			*/
+    el_prompt_t   el_prompt;	/* Prompt stuff				*/
+    el_chared_t	  el_chared;	/* Characted editor stuff		*/
+    el_map_t	  el_map;	/* Key mapping stuff			*/
+    el_key_t	  el_key;	/* Key binding stuff			*/
+    el_history_t  el_history;	/* History stuff			*/
+    el_search_t	  el_search;	/* Search stuff				*/
+    el_signal_t	  el_signal;	/* Signal handling stuff		*/
+};
+
+#endif /* _h_el */
diff --git a/lib/libedit/emacs.c b/lib/libedit/emacs.c
new file mode 100644
index 00000000000..273de1079f7
--- /dev/null
+++ b/lib/libedit/emacs.c
@@ -0,0 +1,504 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)emacs.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/* 
+ * emacs.c: Emacs functions
+ */
+#include "sys.h"
+#include "el.h"
+
+/* em_delete_or_list():
+ *	Delete character under cursor or list completions if at end of line
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_or_list(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar) {	/* if I'm at the end */
+	if (el->el_line.cursor == el->el_line.buffer) {	/* and the beginning */
+	    term_overwrite(el, STReof, 4);/* then do a EOF */
+	    term__flush();
+	    return CC_EOF;
+	}
+	else {
+	    /* Here we could list completions, but it is an error right now */
+	    term_beep(el);
+	    return CC_ERROR;
+	}
+    }
+    else {
+	c_delafter(el, el->el_state.argument);	/* delete after dot */
+	if (el->el_line.cursor > el->el_line.lastchar)
+	    el->el_line.cursor = el->el_line.lastchar;	/* bounds check */
+	return CC_REFRESH;
+    }
+}
+
+
+/* em_delete_next_word():
+ *	Cut from cursor to end of current word
+ *	[M-d]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_delete_next_word(el, c)
+    EditLine *el;
+    int c;
+{
+    char *cp, *p, *kp;
+
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    cp = c__next_word(el->el_line.cursor, el->el_line.lastchar, 
+		      el->el_state.argument, ce__isword);
+
+    for (p = el->el_line.cursor, kp = el->el_chared.c_kill.buf; p < cp; p++)
+	/* save the text */
+	*kp++ = *p;
+    el->el_chared.c_kill.last = kp;
+
+    c_delafter(el, cp - el->el_line.cursor);		/* delete after dot */
+    if (el->el_line.cursor > el->el_line.lastchar)
+	el->el_line.cursor = el->el_line.lastchar;	/* bounds check */
+    return CC_REFRESH;
+}
+
+
+/* em_yank():
+ *	Paste cut buffer at cursor position
+ *	[^Y]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_yank(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    if (el->el_chared.c_kill.last == el->el_chared.c_kill.buf)
+	return CC_ERROR;
+
+    if (el->el_line.lastchar + 
+	(el->el_chared.c_kill.last - el->el_chared.c_kill.buf) >= 
+	el->el_line.limit)
+	return CC_ERROR;
+
+    el->el_chared.c_kill.mark = el->el_line.cursor;
+    cp = el->el_line.cursor;
+
+    /* open the space, */
+    c_insert(el, el->el_chared.c_kill.last - el->el_chared.c_kill.buf);	
+    /* copy the chars */
+    for (kp = el->el_chared.c_kill.buf; kp < el->el_chared.c_kill.last; kp++)	
+	*cp++ = *kp;
+
+    /* if an arg, cursor at beginning else cursor at end */
+    if (el->el_state.argument == 1)		
+	el->el_line.cursor = cp;
+
+    return CC_REFRESH;
+}
+
+
+/* em_kill_line():
+ *	Cut the entire line and save in cut buffer
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_line(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    cp = el->el_line.buffer;
+    kp = el->el_chared.c_kill.buf;
+    while (cp < el->el_line.lastchar)
+	*kp++ = *cp++;		/* copy it */
+    el->el_chared.c_kill.last = kp;
+    el->el_line.lastchar = el->el_line.buffer;	/* zap! -- delete all of it */
+    el->el_line.cursor = el->el_line.buffer;
+    return CC_REFRESH;
+}
+
+
+/* em_kill_region():
+ *	Cut area between mark and cursor and save in cut buffer
+ *	[^W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_kill_region(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    if (!el->el_chared.c_kill.mark)
+	return CC_ERROR;
+
+    if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+	cp = el->el_line.cursor;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_chared.c_kill.mark)
+	    *kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+	c_delafter(el, cp - el->el_line.cursor);
+    }
+    else {			/* mark is before cursor */
+	cp = el->el_chared.c_kill.mark;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.cursor)
+	    *kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+	c_delbefore(el, cp - el->el_chared.c_kill.mark);
+	el->el_line.cursor = el->el_chared.c_kill.mark;
+    }
+    return CC_REFRESH;
+}
+
+
+/* em_copy_region():
+ *	Copy area between mark and cursor to cut buffer
+ *	[M-W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_region(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    if (el->el_chared.c_kill.mark)
+	return CC_ERROR;
+
+    if (el->el_chared.c_kill.mark > el->el_line.cursor) {
+	cp = el->el_line.cursor;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_chared.c_kill.mark)
+	    *kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+    }
+    else {
+	cp = el->el_chared.c_kill.mark;
+	kp = el->el_chared.c_kill.buf;
+	while (cp < el->el_line.cursor)
+	    *kp++ = *cp++;	/* copy it */
+	el->el_chared.c_kill.last = kp;
+    }
+    return CC_NORM;
+}
+
+
+/* em_gosmacs_traspose():
+ *	Exchange the two characters before the cursor
+ *	Gosling emacs transpose chars [^T]
+ */
+protected el_action_t
+em_gosmacs_traspose(el, c)
+    EditLine *el;
+    int c;
+{
+
+    if (el->el_line.cursor > &el->el_line.buffer[1]) {
+   	/* must have at least two chars entered */
+	c = el->el_line.cursor[-2];
+	el->el_line.cursor[-2] = el->el_line.cursor[-1];
+	el->el_line.cursor[-1] = c;
+	return CC_REFRESH;
+    }
+    else 
+	return CC_ERROR;
+}
+
+
+/* em_next_word():
+ *	Move next to end of current word
+ *	[M-f]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_next_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor = c__next_word(el->el_line.cursor, el->el_line.lastchar, 
+				      el->el_state.argument,
+				      ce__isword);
+
+    if (el->el_map.type == MAP_VI) 
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+
+    return CC_CURSOR;
+}
+
+/* em_upper_case():
+ *	Uppercase the characters from cursor to end of current word
+ *	[M-u]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_upper_case(el, c)
+    EditLine *el;
+    int c;
+{
+    char   *cp, *ep;
+
+    ep = c__next_word(el->el_line.cursor, el->el_line.lastchar, 
+		      el->el_state.argument, ce__isword);
+
+    for (cp = el->el_line.cursor; cp < ep; cp++)
+	if (islower(*cp))
+	    *cp = toupper(*cp);
+
+    el->el_line.cursor = ep;
+    if (el->el_line.cursor > el->el_line.lastchar)
+	el->el_line.cursor = el->el_line.lastchar;
+    return CC_REFRESH;
+}
+
+
+/* em_capitol_case():
+ *	Capitalize the characters from cursor to end of current word
+ *	[M-c]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_capitol_case(el, c)
+    EditLine *el;
+    int c;
+{
+    char   *cp, *ep;
+
+    ep = c__next_word(el->el_line.cursor, el->el_line.lastchar, 
+		      el->el_state.argument, ce__isword);
+
+    for (cp = el->el_line.cursor; cp < ep; cp++) {
+	if (isalpha(*cp)) {
+	    if (islower(*cp))
+		*cp = toupper(*cp);
+	    cp++;
+	    break;
+	}
+    }
+    for (; cp < ep; cp++)
+	if (isupper(*cp))
+	    *cp = tolower(*cp);
+
+    el->el_line.cursor = ep;
+    if (el->el_line.cursor > el->el_line.lastchar)
+	el->el_line.cursor = el->el_line.lastchar;
+    return CC_REFRESH;
+}
+
+/* em_lower_case():
+ *	Lowercase the characters from cursor to end of current word
+ *	[M-l]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_lower_case(el, c)
+    EditLine *el;
+    int c;
+{
+    char   *cp, *ep;
+
+    ep = c__next_word(el->el_line.cursor, el->el_line.lastchar, 
+		      el->el_state.argument, ce__isword);
+
+    for (cp = el->el_line.cursor; cp < ep; cp++)
+	if (isupper(*cp))
+	    *cp = tolower(*cp);
+
+    el->el_line.cursor = ep;
+    if (el->el_line.cursor > el->el_line.lastchar)
+	el->el_line.cursor = el->el_line.lastchar;
+    return CC_REFRESH;
+}
+
+
+/* em_set_mark():
+ *	Set the mark at cursor
+ *	[^@]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_set_mark(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_chared.c_kill.mark = el->el_line.cursor;
+    return CC_NORM;
+}
+
+
+/* em_exchange_mark():
+ *	Exchange the cursor and mark 
+ *	[^X^X]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_exchange_mark(el, c)
+    EditLine *el;
+    int c;
+{
+    register char *cp;
+
+    cp = el->el_line.cursor;
+    el->el_line.cursor = el->el_chared.c_kill.mark;
+    el->el_chared.c_kill.mark = cp;
+    return CC_CURSOR;
+}
+
+/* em_universal_argument():
+ *	Universal argument (argument times 4)
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_universal_argument(el, c)
+    EditLine *el;
+    int c;
+{				/* multiply current argument by 4 */
+    if (el->el_state.argument > 1000000)
+	return CC_ERROR;
+    el->el_state.doingarg = 1;
+    el->el_state.argument *= 4;
+    return CC_ARGHACK;
+}
+
+/* em_meta_next():
+ *	Add 8th bit to next character typed
+ *	[<ESC>]
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_meta_next(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_state.metanext = 1; 
+    return CC_ARGHACK;
+}
+
+
+/* em_toggle_overwrite():
+ *	Switch from insert to overwrite mode or vice versa
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_toggle_overwrite(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_state.inputmode = 
+	(el->el_state.inputmode == MODE_INSERT) ? MODE_REPLACE : MODE_INSERT;
+    return CC_NORM;
+}
+
+
+/* em_copy_prev_word():
+ *	Copy current word to cursor
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_copy_prev_word(el, c)
+    EditLine *el;
+    int c;
+{
+    char *cp, *oldc, *dp;
+
+    if (el->el_line.cursor == el->el_line.buffer)
+	return CC_ERROR;
+
+    oldc = el->el_line.cursor;
+    /* does a bounds check */
+    cp = c__prev_word(el->el_line.cursor, el->el_line.buffer, 
+		      el->el_state.argument, ce__isword);	
+
+    c_insert(el, oldc - cp);
+    for (dp = oldc; cp < oldc && dp < el->el_line.lastchar; cp++)
+	*dp++ = *cp;
+
+    el->el_line.cursor = dp;		/* put cursor at end */
+
+    return CC_REFRESH;
+}
+
+
+/* em_inc_search_next():
+ *	Emacs incremental next search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_next(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_search.patlen = 0;
+    return ce_inc_search(el, ED_SEARCH_NEXT_HISTORY);
+}
+
+
+/* em_inc_search_prev():
+ *	Emacs incremental reverse search
+ */
+protected el_action_t
+/*ARGSUSED*/
+em_inc_search_prev(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_search.patlen = 0;
+    return ce_inc_search(el, ED_SEARCH_PREV_HISTORY);
+}
diff --git a/lib/libedit/hist.c b/lib/libedit/hist.c
new file mode 100644
index 00000000000..394df63e9d3
--- /dev/null
+++ b/lib/libedit/hist.c
@@ -0,0 +1,170 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)hist.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * hist.c: History access functions
+ */
+#include "sys.h"
+#include <stdlib.h>
+#include "el.h"
+
+/* hist_init():
+ *	Initialization function.
+ */
+protected int
+hist_init(el)
+    EditLine *el;
+{
+    el->el_history.fun  = NULL;
+    el->el_history.ref  = NULL;
+    el->el_history.buf   = (char *) el_malloc(EL_BUFSIZ);
+    el->el_history.last  = el->el_history.buf;
+    return 0;
+}
+
+
+/* hist_end():
+ *	clean up history;
+ */
+protected void
+hist_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_history.buf);
+    el->el_history.buf   = NULL;
+}
+
+
+/* hist_set():
+ *	Set new history interface
+ */
+protected int
+hist_set(el, fun, ptr)
+    EditLine *el;
+    hist_fun_t fun;
+    ptr_t ptr;
+
+{
+    el->el_history.ref = ptr;
+    el->el_history.fun = fun;
+    return 0;
+}
+
+
+/* hist_get():
+ *	Get a history line and update it in the buffer.
+ *	eventno tells us the event to get.
+ */
+protected el_action_t
+hist_get(el)
+    EditLine *el;
+{
+    const char    *hp;
+    int     h;
+
+    if (el->el_history.eventno == 0) {	/* if really the current line */
+	(void) strncpy(el->el_line.buffer, el->el_history.buf, EL_BUFSIZ);
+	el->el_line.lastchar = el->el_line.buffer + 
+		(el->el_history.last - el->el_history.buf);
+
+#ifdef KSHVI
+    if (el->el_map.type == MAP_VI)
+	el->el_line.cursor = el->el_line.buffer;
+    else
+#endif /* KSHVI */
+	el->el_line.cursor = el->el_line.lastchar;
+
+	return CC_REFRESH;
+    }
+
+    if (el->el_history.ref == NULL)
+	return CC_ERROR;
+
+    hp = HIST_FIRST(el);
+
+    if (hp == NULL)
+	return CC_ERROR;
+
+    for (h = 1; h < el->el_history.eventno; h++)
+	if ((hp = HIST_NEXT(el)) == NULL) {
+	    el->el_history.eventno = h;
+	    return CC_ERROR;
+	}
+
+    (void) strncpy(el->el_line.buffer, hp, EL_BUFSIZ);
+    el->el_line.lastchar = el->el_line.buffer + strlen(el->el_line.buffer);
+
+    if (el->el_line.lastchar > el->el_line.buffer) {
+	if (el->el_line.lastchar[-1] == '\n')
+	    el->el_line.lastchar--;
+	if (el->el_line.lastchar[-1] == ' ')
+	    el->el_line.lastchar--;
+	if (el->el_line.lastchar < el->el_line.buffer)
+	    el->el_line.lastchar = el->el_line.buffer;
+    }
+
+#ifdef KSHVI
+    if (el->el_map.type == MAP_VI)
+	el->el_line.cursor = el->el_line.buffer;
+    else
+#endif /* KSHVI */
+	el->el_line.cursor = el->el_line.lastchar;
+
+    return CC_REFRESH;
+}
+
+/* hist_list()
+ *	List history entries
+ */
+protected int
+/*ARGSUSED*/
+hist_list(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    const char *str;
+
+    if (el->el_history.ref == NULL)
+	return -1;
+    for (str = HIST_LAST(el); str != NULL; str = HIST_PREV(el))
+	(void) fprintf(el->el_outfile, "%d %s", el->el_history.ev->num, str);
+    return 0;
+}
diff --git a/lib/libedit/hist.h b/lib/libedit/hist.h
new file mode 100644
index 00000000000..90c05698b48
--- /dev/null
+++ b/lib/libedit/hist.h
@@ -0,0 +1,75 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)hist.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.hist.c: History functions
+ */
+#ifndef _h_el_hist
+#define _h_el_hist
+
+#include "histedit.h"
+
+typedef const HistEvent *	(*hist_fun_t) __P((ptr_t, int, ...));
+
+typedef struct el_history_t {
+    char *buf;				/* The history buffer		*/
+    char *last;				/* The last character		*/
+    int eventno;			/* Event we are looking for	*/
+    ptr_t ref;				/* Argument for history fcns	*/
+    hist_fun_t fun;			/* Event access			*/
+    const HistEvent *ev;		/* Event cookie			*/
+} el_history_t;
+
+#define HIST_FUN(el, fn, arg)	\
+    ((((el)->el_history.ev = \
+       (*(el)->el_history.fun)((el)->el_history.ref, fn, arg)) == NULL) ? \
+     NULL : (el)->el_history.ev->str)
+
+#define	HIST_NEXT(el)		HIST_FUN(el, H_NEXT, NULL)
+#define	HIST_FIRST(el)		HIST_FUN(el, H_FIRST, NULL)
+#define	HIST_LAST(el)		HIST_FUN(el, H_LAST, NULL)
+#define	HIST_PREV(el)		HIST_FUN(el, H_PREV, NULL)
+#define	HIST_EVENT(el, num)	HIST_FUN(el, H_EVENT, num)
+
+protected int 		hist_init	__P((EditLine *));
+protected void 		hist_end	__P((EditLine *));
+protected el_action_t	hist_get	__P((EditLine *));
+protected int		hist_set	__P((EditLine *, hist_fun_t, ptr_t));
+protected int		hist_list	__P((EditLine *, int, char **));
+
+#endif /* _h_el_hist */
diff --git a/lib/libedit/histedit.h b/lib/libedit/histedit.h
new file mode 100644
index 00000000000..95423c6482f
--- /dev/null
+++ b/lib/libedit/histedit.h
@@ -0,0 +1,172 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)histedit.h	8.2 (Berkeley) 1/3/94
+ */
+
+/*
+ * histedit.h: Line editor and history interface.
+ */
+#ifndef _h_editline
+#define _h_editline
+
+#include <sys/types.h>
+#include <stdio.h>
+
+/*
+ * ==== Editing ====
+ */
+typedef struct editline EditLine;
+
+/*
+ * For user-defined function interface
+ */
+typedef struct lineinfo {
+    __const char *buffer;
+    __const char *cursor;
+    __const char *lastchar;
+} LineInfo;
+
+
+/*
+ * EditLine editor function return codes.
+ * For user-defined function interface
+ */
+#define	CC_NORM		0
+#define	CC_NEWLINE	1
+#define	CC_EOF		2
+#define CC_ARGHACK	3
+#define CC_REFRESH	4
+#define	CC_CURSOR	5
+#define	CC_ERROR	6
+#define CC_FATAL	7
+
+/*
+ * Initialization, cleanup, and resetting
+ */
+EditLine	*el_init	__P((const char *, FILE *, FILE *));
+void		 el_reset	__P((EditLine *));
+void		 el_end		__P((EditLine *));
+
+
+/*
+ * Get a line, a character or push a string back in the input queue
+ */
+__const char    *el_gets	__P((EditLine *, int *));
+int		 el_getc	__P((EditLine *, char *));
+void		 el_push	__P((EditLine *, const char *));
+
+/*
+ * High level function internals control
+ * Parses argc, argv array and executes builtin editline commands
+ */
+int		 el_parse	__P((EditLine *, int, char **)); 
+
+/*
+ * Low level editline access function
+ */
+int 		 el_set		__P((EditLine *, int, ...));
+
+/*
+ * el_set/el_get parameters
+ */
+#define EL_PROMPT	0	/* , el_pfunc_t);		*/
+#define EL_TERMINAL	1	/* , const char *);		*/
+#define EL_EDITOR	2	/* , const char *);		*/
+#define EL_SIGNAL	3	/* , int);			*/
+#define	EL_BIND		4	/* , const char *, ..., NULL);	*/
+#define	EL_TELLTC	5	/* , const char *, ..., NULL);	*/
+#define	EL_SETTC	6	/* , const char *, ..., NULL);	*/
+#define	EL_ECHOTC	7	/* , const char *, ..., NULL);	*/
+#define	EL_SETTY	8	/* , const char *, ..., NULL);	*/
+#define	EL_ADDFN	9	/* , const char *, const char *	*/
+				/* , el_func_t);		*/
+#define EL_HIST		10	/* , hist_fun_t, const char *);	*/
+
+/*
+ * Source named file or $PWD/.editrc or $HOME/.editrc
+ */
+int		el_source	__P((EditLine *, const char *));
+
+/*
+ * Must be called when the terminal changes size; If EL_SIGNAL
+ * is set this is done automatically otherwise it is the responsibility
+ * of the application
+ */
+void		 el_resize	__P((EditLine *));
+
+
+/*
+ * User-defined function interface.
+ */
+__const LineInfo *el_line	__P((EditLine *));
+int   		  el_insertstr	__P((EditLine *, char *));
+void		  el_deletestr	__P((EditLine *, int));
+
+/*
+ * ==== History ====
+ */
+
+typedef struct history History;
+
+typedef struct HistEvent {
+    int 	  num;
+    __const char *str;
+} HistEvent;
+
+/*
+ * History access functions.
+ */
+History *		history_init	__P((void));
+void 			history_end	__P((History *));
+
+__const HistEvent *	history		__P((History *, int, ...));
+
+#define H_FUNC		 0	/* , UTSL		*/
+#define H_EVENT		 1	/* , const int);	*/
+#define H_FIRST		 2	/* , void);		*/
+#define H_LAST		 3	/* , void);		*/
+#define H_PREV		 4	/* , void);		*/
+#define H_NEXT		 5	/* , void);		*/
+#define H_CURR		 6	/* , void);		*/
+#define H_ADD		 7	/* , const char*);	*/
+#define H_ENTER		 8	/* , const char*);	*/
+#define H_END		 9	/* , void);		*/
+#define H_NEXT_STR	10	/* , const char*);	*/
+#define H_PREV_STR	11	/* , const char*);	*/
+#define H_NEXT_EVENT	12	/* , const int);	*/
+#define H_PREV_EVENT	13	/* , const int);	*/
+
+#endif /* _h_editline */
diff --git a/lib/libedit/history.c b/lib/libedit/history.c
new file mode 100644
index 00000000000..e8665481977
--- /dev/null
+++ b/lib/libedit/history.c
@@ -0,0 +1,602 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)history.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * hist.c: History access functions
+ */
+#include "sys.h"
+
+#include <string.h>
+#include <stdlib.h>
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#include "histedit.h"
+
+typedef const HistEvent *	(*history_gfun_t) __P((ptr_t));
+typedef const HistEvent *	(*history_efun_t) __P((ptr_t, const char *));
+
+struct history {
+    ptr_t	   h_ref;		/* Argument for history fcns	*/
+    history_gfun_t h_first;		/* Get the first element	*/
+    history_gfun_t h_next;		/* Get the next element		*/
+    history_gfun_t h_last;		/* Get the last element		*/
+    history_gfun_t h_prev;		/* Get the previous element	*/
+    history_gfun_t h_curr;		/* Get the current element	*/
+    history_efun_t h_enter;		/* Add an element		*/
+    history_efun_t h_add;		/* Append to an element		*/
+};
+
+#define	HNEXT(h)  	(*(h)->h_next)((h)->h_ref)
+#define	HFIRST(h) 	(*(h)->h_first)((h)->h_ref)
+#define	HPREV(h)  	(*(h)->h_prev)((h)->h_ref)
+#define	HLAST(h) 	(*(h)->h_last)((h)->h_ref)
+#define	HCURR(h) 	(*(h)->h_curr)((h)->h_ref)
+#define	HENTER(h, str)	(*(h)->h_enter)((h)->h_ref, str)
+#define	HADD(h, str)	(*(h)->h_add)((h)->h_ref, str)
+
+#define h_malloc(a)	malloc(a)
+#define h_free(a)	free(a)
+
+
+private int		 history_set_num	__P((History *, int));
+private int		 history_set_fun	__P((History *, history_gfun_t,
+						     history_gfun_t,
+						     history_gfun_t,
+						     history_gfun_t,
+						     history_gfun_t,
+						     history_efun_t,
+						     history_efun_t, ptr_t));
+private const HistEvent *history_prev_event	__P((History *, int));
+private const HistEvent *history_next_event	__P((History *, int));
+private const HistEvent *history_next_string	__P((History *, const char *));
+private const HistEvent *history_prev_string	__P((History *, const char *));
+
+
+/***********************************************************************/
+
+/*
+ * Builtin- history implementation
+ */
+typedef struct hentry_t {
+    HistEvent ev;		/* What we return		*/
+    struct hentry_t *next;	/* Next entry			*/
+    struct hentry_t *prev;	/* Previous entry		*/
+} hentry_t;
+
+typedef struct history_t {
+    hentry_t  list;		/* Fake list header element	*/
+    hentry_t *cursor;		/* Current element in the list	*/
+    int	max;			/* Maximum number of events	*/
+    int cur;			/* Current number of events	*/
+    int	eventno;		/* Current event number		*/
+} history_t;
+
+private const HistEvent *history_def_first  __P((ptr_t));
+private const HistEvent *history_def_last   __P((ptr_t));
+private const HistEvent *history_def_next   __P((ptr_t));
+private const HistEvent *history_def_prev   __P((ptr_t));
+private const HistEvent *history_def_curr   __P((ptr_t));
+private const HistEvent *history_def_enter  __P((ptr_t, const char *));
+private const HistEvent *history_def_add    __P((ptr_t, const char *));
+private void             history_def_init   __P((ptr_t *, int));
+private void             history_def_end    __P((ptr_t));
+private const HistEvent *history_def_insert __P((history_t *, const char *));
+private void             history_def_delete __P((history_t *, hentry_t *));
+
+#define history_def_set(p, num)	(void) (((history_t *) p)->max = (num))
+
+
+/* history_def_first():
+ *	Default function to return the first event in the history.
+ */
+private const HistEvent * 
+history_def_first(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+    h->cursor = h->list.next;
+    if (h->cursor != &h->list)
+	return &h->cursor->ev;
+    else
+	return NULL;
+}
+
+/* history_def_last():
+ *	Default function to return the last event in the history.
+ */
+private const HistEvent * 
+history_def_last(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+    h->cursor = h->list.prev;
+    if (h->cursor != &h->list)
+	return &h->cursor->ev;
+    else
+	return NULL;
+}
+
+/* history_def_next():
+ *	Default function to return the next event in the history.
+ */
+private const HistEvent * 
+history_def_next(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+
+    if (h->cursor != &h->list)
+	h->cursor = h->cursor->next;
+    else
+	return NULL;
+
+    if (h->cursor != &h->list)
+	return &h->cursor->ev;
+    else
+	return NULL;
+}
+
+
+/* history_def_prev():
+ *	Default function to return the previous event in the history.
+ */
+private const HistEvent * 
+history_def_prev(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+
+    if (h->cursor != &h->list)
+	h->cursor = h->cursor->prev;
+    else
+	return NULL;
+
+    if (h->cursor != &h->list)
+	return &h->cursor->ev;
+    else
+	return NULL;
+}
+
+
+/* history_def_curr():
+ *	Default function to return the current event in the history.
+ */
+private const HistEvent * 
+history_def_curr(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+
+    if (h->cursor != &h->list)
+	return &h->cursor->ev;
+    else
+	return NULL;
+}
+
+
+/* history_def_add():
+ *	Append string to element
+ */
+private const HistEvent *
+history_def_add(p, str)
+    ptr_t p;
+    const char *str;
+{
+    history_t *h = (history_t *) p;
+    size_t len;
+    char *s;
+
+    if (h->cursor == &h->list)
+	return (history_def_enter(p, str));
+    len = strlen(h->cursor->ev.str) + strlen(str) + 1;
+    s = (char *) h_malloc(len);
+    (void) strcpy(s, h->cursor->ev.str);
+    (void) strcat(s, str);
+    h_free((ptr_t) h->cursor->ev.str);
+    h->cursor->ev.str = s;
+    return &h->cursor->ev;
+}
+
+
+/* history_def_delete():
+ *	Delete element hp of the h list
+ */
+private void
+history_def_delete(h, hp)
+    history_t *h;
+    hentry_t *hp;
+{
+    if (hp == &h->list)
+	abort();
+    hp->prev->next = hp->next;
+    hp->next->prev = hp->prev;
+    h_free((ptr_t) hp->ev.str);
+    h_free(hp);
+    h->cur--;
+}
+
+
+/* history_def_insert():
+ *	Insert element with string str in the h list
+ */
+private const HistEvent *
+history_def_insert(h, str)
+    history_t *h;
+    const char *str;
+{
+    h->cursor = (hentry_t *) h_malloc(sizeof(hentry_t));
+    h->cursor->ev.str = strdup(str);
+    h->cursor->next = h->list.next;
+    h->cursor->prev = &h->list;
+    h->list.next->prev = h->cursor;
+    h->list.next = h->cursor;
+    h->cur++;
+
+    return &h->cursor->ev;
+}
+
+
+/* history_def_enter():
+ *	Default function to enter an item in the history
+ */
+private const HistEvent *
+history_def_enter(p, str)
+    ptr_t p;
+    const char *str;
+{
+    history_t *h = (history_t *) p;
+    const HistEvent *ev;
+
+
+    ev = history_def_insert(h, str);
+    ((HistEvent*) ev)->num = ++h->eventno;
+
+    /*
+     * Always keep at least one entry.
+     * This way we don't have to check for the empty list.
+     */
+    while (h->cur > h->max + 1) 
+	history_def_delete(h, h->list.prev);
+    return ev;
+}
+
+
+/* history_def_init():
+ *	Default history initialization function
+ */
+private void
+history_def_init(p, n)
+    ptr_t *p;
+    int n;
+{
+    history_t *h = (history_t *) h_malloc(sizeof(history_t));
+    if (n <= 0)
+	n = 0;
+    h->eventno = 0;
+    h->cur = 0;
+    h->max = n;
+    h->list.next = h->list.prev = &h->list;
+    h->list.ev.str = NULL;
+    h->list.ev.num = 0;
+    h->cursor = &h->list;
+    *p = (ptr_t) h;
+}
+
+
+/* history_def_end():
+ *	Default history cleanup function
+ */
+private void
+history_def_end(p)
+    ptr_t p;
+{
+    history_t *h = (history_t *) p;
+
+    while (h->list.prev != &h->list)
+	history_def_delete(h, h->list.prev);
+}
+
+/************************************************************************/
+
+/* history_init():
+ *	Initialization function.
+ */
+public History *
+history_init()
+{
+    History *h = (History *) h_malloc(sizeof(History));
+
+    history_def_init(&h->h_ref, 0);
+
+    h->h_next  = history_def_next;
+    h->h_first = history_def_first;
+    h->h_last  = history_def_last;
+    h->h_prev  = history_def_prev;
+    h->h_curr  = history_def_curr;
+    h->h_enter = history_def_enter;
+    h->h_add   = history_def_add;
+
+    return h;
+}
+
+
+/* history_end():
+ *	clean up history;
+ */
+public void
+history_end(h)
+    History *h;
+{
+    if (h->h_next == history_def_next)
+	history_def_end(h->h_ref);
+}
+
+
+
+/* history_set_num():
+ *	Set history number of events
+ */
+private int
+history_set_num(h, num)
+    History *h;
+    int num;
+{
+    if (h->h_next != history_def_next || num < 0)
+	return -1;
+    history_def_set(h->h_ref, num);
+    return 0;
+}
+
+
+/* history_set_fun():
+ *	Set history functions
+ */
+private int
+history_set_fun(h, first, next, last, prev, curr, enter, add, ptr)
+    History *h;
+    history_gfun_t first, next, last, prev, curr;
+    history_efun_t enter, add;
+    ptr_t ptr;
+{
+    if (first == NULL || next == NULL || 
+        last == NULL  || prev == NULL || curr == NULL ||
+	enter == NULL || add == NULL || 
+	ptr == NULL ) {
+	if (h->h_next != history_def_next) {
+	    history_def_init(&h->h_ref, 0);
+	    h->h_first = history_def_first;
+	    h->h_next  = history_def_next;
+	    h->h_last  = history_def_last;
+	    h->h_prev  = history_def_prev;
+	    h->h_curr  = history_def_curr;
+	    h->h_enter = history_def_enter;
+	    h->h_add   = history_def_add;
+	}
+	return -1;
+    }
+
+    if (h->h_next == history_def_next)
+	history_def_end(h->h_ref);
+
+    h->h_next  = next;
+    h->h_first = first;
+    h->h_enter = enter;
+    h->h_add   = add;
+    return 0;
+}
+
+
+/* history_prev_event():
+ *	Find the previous event, with number given
+ */
+private const HistEvent *
+history_prev_event(h, num)
+    History *h;
+    int num;
+{
+    const HistEvent *ev;
+    for (ev = HCURR(h); ev != NULL; ev = HPREV(h))
+	if (ev->num == num)
+	    return ev;
+    return NULL;
+}
+
+
+/* history_next_event():
+ *	Find the next event, with number given
+ */
+private const HistEvent *
+history_next_event(h, num)
+    History *h;
+    int num;
+{
+    const HistEvent *ev;
+    for (ev = HCURR(h); ev != NULL; ev = HNEXT(h))
+	if (ev->num == num)
+	    return ev;
+    return NULL;
+}
+
+
+/* history_prev_string():
+ *	Find the previous event beginning with string
+ */
+private const HistEvent *
+history_prev_string(h, str)
+    History *h;
+    const char* str;
+{
+    const HistEvent *ev;
+    size_t len = strlen(str);
+
+    for (ev = HCURR(h); ev != NULL; ev = HNEXT(h))
+	if (strncmp(str, ev->str, len) == 0)
+	    return ev;
+    return NULL;
+}
+
+
+/* history_next_string():
+ *	Find the next event beginning with string
+ */
+private const HistEvent *
+history_next_string(h, str)
+    History *h;
+    const char* str;
+{
+    const HistEvent *ev;
+    size_t len = strlen(str);
+
+    for (ev = HCURR(h); ev != NULL; ev = HPREV(h))
+	if (strncmp(str, ev->str, len) == 0)
+	    return ev;
+    return NULL;
+}
+
+
+/* history():
+ *	User interface to history functions.
+ */
+const HistEvent *
+#if __STDC__
+history(History *h, int fun, ...)
+#else
+history(va_alist)
+    va_dcl
+#endif
+{
+    va_list va;
+    const HistEvent *ev = NULL;
+    const char *str;
+    static const HistEvent sev = { 0, "" };
+
+#if __STDC__
+    va_start(va, fun);
+#else
+    History *h; 
+    int fun;
+    va_start(va);
+    h = va_arg(va, History *);
+    fun = va_arg(va, int);
+#endif
+
+    switch (fun) {
+    case H_ADD:
+	str = va_arg(va, const char *);
+	ev = HADD(h, str);
+	break;
+
+    case H_ENTER:
+	str = va_arg(va, const char *);
+	ev = HENTER(h, str);
+	break;
+
+    case H_FIRST:
+	ev = HFIRST(h);
+	break;
+
+    case H_NEXT:
+	ev = HNEXT(h);
+	break;
+
+    case H_LAST:
+	ev = HLAST(h);
+	break;
+
+    case H_PREV:
+	ev = HPREV(h);
+	break;
+
+    case H_CURR:
+	ev = HCURR(h);
+	break;
+
+    case H_PREV_EVENT:
+	ev = history_prev_event(h, va_arg(va, int));
+	break;
+
+    case H_NEXT_EVENT:
+	ev = history_next_event(h, va_arg(va, int));
+	break;
+
+    case H_PREV_STR:
+	ev = history_prev_string(h, va_arg(va, const char*));
+	break;
+
+    case H_NEXT_STR:
+	ev = history_next_string(h, va_arg(va, const char*));
+	break;
+
+    case H_EVENT:
+	if (history_set_num(h, va_arg(va, int)) == 0)
+	    ev = &sev;
+	break;
+
+    case H_FUNC:
+	{
+	    history_gfun_t	first = va_arg(va, history_gfun_t);
+	    history_gfun_t	next  = va_arg(va, history_gfun_t);
+	    history_gfun_t	last  = va_arg(va, history_gfun_t);
+	    history_gfun_t	prev  = va_arg(va, history_gfun_t);
+	    history_gfun_t	curr  = va_arg(va, history_gfun_t);
+	    history_efun_t	enter = va_arg(va, history_efun_t);
+	    history_efun_t	add   = va_arg(va, history_efun_t);
+	    ptr_t		ptr   = va_arg(va, ptr_t);
+
+	    if (history_set_fun(h, first, next, last, prev, 
+				   curr, enter, add, ptr) == 0)
+		ev = &sev;
+	}
+	break;
+
+    case H_END:
+	history_end(h);
+	break;
+
+    default:
+	break;
+    }
+    va_end(va);
+    return ev;
+}
diff --git a/lib/libedit/key.c b/lib/libedit/key.c
new file mode 100644
index 00000000000..058da0e7f43
--- /dev/null
+++ b/lib/libedit/key.c
@@ -0,0 +1,726 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)key.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * key.c: This module contains the procedures for maintaining
+ *	  the extended-key map.
+ *
+ *      An extended-key (key) is a sequence of keystrokes introduced 
+ *	with an sequence introducer and consisting of an arbitrary 
+ *	number of characters.  This module maintains a map (the el->el_key.map) 
+ *	to convert these extended-key sequences into input strs 
+ *	(XK_STR), editor functions (XK_CMD), or unix commands (XK_EXE).
+ *
+ *      Warning:
+ *	  If key is a substr of some other keys, then the longer
+ *	  keys are lost!!  That is, if the keys "abcd" and "abcef"
+ *	  are in el->el_key.map, adding the key "abc" will cause the first two
+ *	  definitions to be lost.
+ *
+ *      Restrictions:
+ *      -------------
+ *      1) It is not possible to have one key that is a
+ *	   substr of another.
+ */
+#include "sys.h"
+#include <string.h>
+#include <stdlib.h>
+
+#include "el.h"
+
+/* 
+ * The Nodes of the el->el_key.map.  The el->el_key.map is a linked list 
+ * of these node elements
+ */
+struct key_node_t {
+    char        ch;		/* single character of key 		*/
+    int         type;		/* node type				*/
+    key_value_t val; 		/* command code or pointer to str, 	*/
+				/* if this is a leaf 			*/
+    struct key_node_t *next;	/* ptr to next char of this key 	*/
+    struct key_node_t *sibling;	/* ptr to another key with same prefix 	*/
+};
+
+private	int            node_trav	__P((EditLine *, key_node_t *, char *, 
+					     key_value_t *));
+private	int            node__try	__P((key_node_t *, char *, 
+					     key_value_t *, int));
+private	key_node_t    *node__get	__P((int));
+private	void	       node__put	__P((key_node_t *));
+private	int	       node__delete	__P((key_node_t **, char *));
+private	int	       node_lookup 	__P((EditLine *, char *, key_node_t *,
+					     int));
+private	int	       node_enum	__P((EditLine *, key_node_t *, int));
+private	int	       key__decode_char	__P((char *, int, int));
+
+#define KEY_BUFSIZ	EL_BUFSIZ
+
+
+/* key_init():
+ *	Initialize the key maps
+ */
+protected int
+key_init(el)
+    EditLine *el;
+{
+    el->el_key.buf = (char *) el_malloc(KEY_BUFSIZ);
+    el->el_key.map = NULL;
+    key_reset(el);
+    return 0;
+} 
+
+
+/* key_end():
+ *	Free the key maps
+ */
+protected void
+key_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_key.buf);
+    el->el_key.buf = NULL;
+    /* XXX: provide a function to clear the keys */
+    el->el_key.map = NULL;
+} 
+
+
+/* key_map_cmd():
+ *	Associate cmd with a key value
+ */
+protected key_value_t *
+key_map_cmd(el, cmd)
+    EditLine *el;
+    int cmd;
+{
+    el->el_key.val.cmd = (el_action_t) cmd;
+    return &el->el_key.val;
+}
+
+
+/* key_map_str():
+ *	Associate str with a key value
+ */
+protected key_value_t *
+key_map_str(el, str)
+    EditLine *el;
+    char  *str;
+{
+    el->el_key.val.str = str;
+    return &el->el_key.val;
+}
+
+
+/* key_reset():
+ *	Takes all nodes on el->el_key.map and puts them on free list.  Then
+ *	initializes el->el_key.map with arrow keys
+ *	[Always bind the ansi arrow keys?]
+ */
+protected void
+key_reset(el)
+    EditLine *el;
+{
+    node__put(el->el_key.map);
+    el->el_key.map = NULL;
+    return;
+}
+
+
+/* key_get():
+ *	Calls the recursive function with entry point el->el_key.map
+ *      Looks up *ch in map and then reads characters until a
+ *      complete match is found or a mismatch occurs. Returns the
+ *      type of the match found (XK_STR, XK_CMD, or XK_EXE).
+ *      Returns NULL in val.str and XK_STR for no match.  
+ *      The last character read is returned in *ch.
+ */
+protected int
+key_get(el, ch, val)
+    EditLine    *el;
+    char        *ch;
+    key_value_t *val;
+{
+    return node_trav(el, el->el_key.map, ch, val);
+}
+
+
+
+/* key_add():
+ *      Adds key to the el->el_key.map and associates the value in val with it.
+ *      If key is already is in el->el_key.map, the new code is applied to the
+ *      existing key. Ntype specifies if code is a command, an
+ *      out str or a unix command.
+ */
+protected void
+key_add(el, key, val, ntype)
+    EditLine    *el;
+    char        *key;
+    key_value_t *val;
+    int          ntype;
+{
+    if (key[0] == '\0') {
+	(void) fprintf(el->el_errfile, 
+		       "key_add: Null extended-key not allowed.\n");
+	return;
+    }
+
+    if (ntype == XK_CMD && val->cmd == ED_SEQUENCE_LEAD_IN) {
+	(void) fprintf(el->el_errfile,
+		       "key_add: sequence-lead-in command not allowed\n");
+	return;
+    }
+
+    if (el->el_key.map == NULL)
+	/* tree is initially empty.  Set up new node to match key[0] */
+	el->el_key.map = node__get(key[0]);	/* it is properly initialized */
+
+    /* Now recurse through el->el_key.map */
+    (void) node__try(el->el_key.map, key, val, ntype);	
+    return;
+}
+
+
+/* key_clear():
+ *
+ */
+protected void
+key_clear(el, map, in)
+    EditLine *el;
+    el_action_t *map;
+    char   *in;
+{
+    if ((map[(unsigned char) *in] == ED_SEQUENCE_LEAD_IN) &&
+	((map == el->el_map.key && 
+	  el->el_map.alt[(unsigned char) *in] != ED_SEQUENCE_LEAD_IN) ||
+	 (map == el->el_map.alt && 
+	  el->el_map.key[(unsigned char) *in] != ED_SEQUENCE_LEAD_IN)))
+	(void) key_delete(el, in);
+}
+
+
+/* key_delete():
+ *      Delete the key and all longer keys staring with key, if
+ *      they exists.
+ */
+protected int
+key_delete(el, key)
+    EditLine *el;
+    char   *key;
+{
+    if (key[0] == '\0') {
+	(void) fprintf(el->el_errfile, 
+		       "key_delete: Null extended-key not allowed.\n");
+	return -1;
+    }
+
+    if (el->el_key.map == NULL)
+	return 0;
+
+    (void) node__delete(&el->el_key.map, key);
+    return 0;
+}
+
+
+/* key_print():
+ *	Print the binding associated with key key.
+ *	Print entire el->el_key.map if null
+ */
+protected void
+key_print(el, key)
+    EditLine *el;
+    char   *key;
+{
+    /* do nothing if el->el_key.map is empty and null key specified */
+    if (el->el_key.map == NULL && *key == 0)
+	return;
+
+    el->el_key.buf[0] =  '"';
+    if (node_lookup(el, key, el->el_key.map, 1) <= -1)
+	/* key is not bound */
+	(void) fprintf(el->el_errfile, "Unbound extended key \"%s\"\n", key);
+    return;
+}
+
+
+/* node_trav():
+ *	recursively traverses node in tree until match or mismatch is
+ * 	found.  May read in more characters.
+ */
+private int
+node_trav(el, ptr, ch, val)
+    EditLine     *el;
+    key_node_t   *ptr;
+    char         *ch;
+    key_value_t  *val;
+{
+    if (ptr->ch == *ch) {
+	/* match found */
+	if (ptr->next) {
+	    /* key not complete so get next char */
+	    if (el_getc(el, ch) != 1) {	/* if EOF or error */
+		val->cmd = ED_END_OF_FILE;
+		return XK_CMD;/* PWP: Pretend we just read an end-of-file */
+	    }
+	    return node_trav(el, ptr->next, ch, val);
+	}
+	else {
+	    *val = ptr->val;
+	    if (ptr->type != XK_CMD)
+		*ch = '\0';
+	    return ptr->type;
+	}
+    }
+    else {
+	/* no match found here */
+	if (ptr->sibling) {
+	    /* try next sibling */
+	    return node_trav(el, ptr->sibling, ch, val);
+	}
+	else {
+	    /* no next sibling -- mismatch */
+	    val->str = NULL;
+	    return XK_STR;
+	}
+    }
+}
+
+
+/* node__try():
+ * 	Find a node that matches *str or allocate a new one
+ */
+private int
+node__try(ptr, str, val, ntype)
+    key_node_t   *ptr;
+    char         *str;
+    key_value_t  *val;
+    int           ntype;
+{
+    if (ptr->ch != *str) {
+	key_node_t *xm;
+
+	for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+	    if (xm->sibling->ch == *str)
+		break;
+	if (xm->sibling == NULL)
+	    xm->sibling = node__get(*str);	/* setup new node */
+	ptr = xm->sibling;
+    }
+
+    if (*++str == '\0') {
+	/* we're there */
+	if (ptr->next != NULL) {
+	    node__put(ptr->next);	/* lose longer keys with this prefix */
+	    ptr->next = NULL;
+	}
+	switch (ptr->type) {
+	case XK_CMD:
+	case XK_NOD:
+	    break;
+	case XK_STR:
+	case XK_EXE:
+	    if (ptr->val.str)
+		el_free((ptr_t) ptr->val.str);
+	    break;
+	default:
+	    abort();
+	    break;
+	}
+
+	switch (ptr->type = ntype) {
+	case XK_CMD:
+	    ptr->val = *val;
+	    break;
+	case XK_STR:
+	case XK_EXE:
+	    ptr->val.str = strdup(val->str);
+	    break;
+	default:
+	    abort();
+	    break;
+	}
+    }
+    else {
+	/* still more chars to go */
+	if (ptr->next == NULL)
+	    ptr->next = node__get(*str);	/* setup new node */
+	(void) node__try(ptr->next, str, val, ntype);
+    }
+    return 0;
+}
+
+
+/* node__delete():
+ *	Delete node that matches str
+ */
+private int
+node__delete(inptr, str)
+    key_node_t **inptr;
+    char   *str;
+{
+    key_node_t *ptr;
+    key_node_t *prev_ptr = NULL;
+
+    ptr = *inptr;
+
+    if (ptr->ch != *str) {
+	key_node_t *xm;
+
+	for (xm = ptr; xm->sibling != NULL; xm = xm->sibling)
+	    if (xm->sibling->ch == *str)
+		break;
+	if (xm->sibling == NULL)
+	    return 0;
+	prev_ptr = xm;
+	ptr = xm->sibling;
+    }
+
+    if (*++str == '\0') {
+	/* we're there */
+	if (prev_ptr == NULL)
+	    *inptr = ptr->sibling;
+	else
+	    prev_ptr->sibling = ptr->sibling;
+	ptr->sibling = NULL;
+	node__put(ptr);
+	return 1;
+    }
+    else if (ptr->next != NULL && node__delete(&ptr->next, str) == 1) {
+	if (ptr->next != NULL)
+	    return 0;
+	if (prev_ptr == NULL)
+	    *inptr = ptr->sibling;
+	else
+	    prev_ptr->sibling = ptr->sibling;
+	ptr->sibling = NULL;
+	node__put(ptr);
+	return 1;
+    }
+    else {
+	return 0;
+    }
+}
+
+/* node__put():
+ *	Puts a tree of nodes onto free list using free(3).
+ */
+private void
+node__put(ptr)
+    key_node_t *ptr;
+{
+    if (ptr == NULL)
+	return;
+
+    if (ptr->next != NULL) {
+	node__put(ptr->next);
+	ptr->next = NULL;
+    }
+
+    node__put(ptr->sibling);
+
+    switch (ptr->type) {
+    case XK_CMD:
+    case XK_NOD:
+	break;
+    case XK_EXE:
+    case XK_STR:
+	if (ptr->val.str != NULL)
+	    el_free((ptr_t) ptr->val.str);
+	break;
+    default:
+	abort();
+	break;
+    }
+    el_free((ptr_t) ptr);
+}
+
+
+/* node__get():
+ *	Returns pointer to an key_node_t for ch.
+ */
+private key_node_t *
+node__get(ch)
+    int    ch;
+{
+    key_node_t *ptr;
+
+    ptr = (key_node_t *) el_malloc((size_t) sizeof(key_node_t));
+    ptr->ch = ch;
+    ptr->type = XK_NOD;
+    ptr->val.str = NULL;
+    ptr->next = NULL;
+    ptr->sibling = NULL;
+    return ptr;
+}
+
+
+
+/* node_lookup():
+ *	look for the str starting at node ptr.
+ *	Print if last node
+ */
+private int
+node_lookup(el, str, ptr, cnt)
+    EditLine   *el;
+    char       *str;
+    key_node_t *ptr;
+    int         cnt;
+{
+    int     ncnt;
+
+    if (ptr == NULL)
+	return -1;		/* cannot have null ptr */
+
+    if (*str == 0) {
+	/* no more chars in str.  node_enum from here. */
+	(void) node_enum(el, ptr, cnt);
+	return 0;
+    }
+    else {
+	/* If match put this char into el->el_key.buf.  Recurse */
+	if (ptr->ch == *str) {
+	    /* match found */
+	    ncnt = key__decode_char(el->el_key.buf, cnt, 
+				    (unsigned char) ptr->ch);
+	    if (ptr->next != NULL)
+		/* not yet at leaf */
+		return node_lookup(el, str + 1, ptr->next, ncnt + 1);
+	    else {
+		/* next node is null so key should be complete */
+		if (str[1] == 0) {
+		    el->el_key.buf[ncnt + 1] = '"';
+		    el->el_key.buf[ncnt + 2] = '\0';
+		    key_kprint(el, el->el_key.buf, &ptr->val, ptr->type);
+		    return 0;
+		}
+		else
+		    return -1;/* mismatch -- str still has chars */
+	    }
+	}
+	else {
+	    /* no match found try sibling */
+	    if (ptr->sibling)
+		return node_lookup(el, str, ptr->sibling, cnt);
+	    else
+		return -1;
+	}
+    }
+}
+
+
+/* node_enum():
+ *	Traverse the node printing the characters it is bound in buffer
+ */
+private int
+node_enum(el, ptr, cnt)
+    EditLine *el;
+    key_node_t *ptr;
+    int     cnt;
+{
+    int     ncnt;
+
+    if (cnt >= KEY_BUFSIZ - 5) {	/* buffer too small */
+	el->el_key.buf[++cnt] = '"';
+	el->el_key.buf[++cnt] = '\0';
+	(void) fprintf(el->el_errfile, 
+		    "Some extended keys too long for internal print buffer");
+	(void) fprintf(el->el_errfile, " \"%s...\"\n", el->el_key.buf);
+	return 0;
+    }
+
+    if (ptr == NULL) {
+#ifdef DEBUG_EDIT
+	(void) fprintf(el->el_errfile, "node_enum: BUG!! Null ptr passed\n!");
+#endif
+	return -1;
+    }
+
+    /* put this char at end of str */
+    ncnt = key__decode_char(el->el_key.buf, cnt, (unsigned char) ptr->ch);
+    if (ptr->next == NULL) {
+	/* print this key and function */
+	el->el_key.buf[ncnt + 1] = '"';
+	el->el_key.buf[ncnt + 2] = '\0';
+	key_kprint(el, el->el_key.buf, &ptr->val, ptr->type);
+    }
+    else
+	(void) node_enum(el, ptr->next, ncnt + 1);
+
+    /* go to sibling if there is one */
+    if (ptr->sibling)
+	(void) node_enum(el, ptr->sibling, cnt);
+    return 0;
+}
+
+
+/* key_kprint():
+ *	Print the specified key and its associated
+ *	function specified by val
+ */
+protected void
+key_kprint(el, key, val, ntype)
+    EditLine      *el;
+    char          *key;
+    key_value_t   *val;
+    int            ntype;
+{
+    el_bindings_t *fp;
+    char unparsbuf[EL_BUFSIZ];
+    static char *fmt = "%-15s->  %s\n";
+
+    if (val != NULL)
+	switch (ntype) {
+	case XK_STR:
+	case XK_EXE:
+	    (void) fprintf(el->el_errfile, fmt, key, 
+			   key__decode_str(val->str, unparsbuf, 
+					      ntype == XK_STR ? "\"\"" : "[]"));
+	    break;
+	case XK_CMD:
+	    for (fp = el->el_map.help; fp->name; fp++) 
+		if (val->cmd == fp->func) {
+		    (void) fprintf(el->el_errfile, fmt, key, fp->name);
+		    break;
+		}
+#ifdef DEBUG_KEY
+	    if (fp->name == NULL) 
+		(void) fprintf(el->el_errfile, "BUG! Command not found.\n");
+#endif
+
+	    break;
+	default:
+	    abort();
+	    break;
+	}
+    else
+	(void) fprintf(el->el_errfile, fmt, key, "no input");
+}
+
+
+/* key__decode_char():
+ *	Put a printable form of char in buf.
+ */
+private int
+key__decode_char(buf, cnt, ch)
+    char *buf;
+    int   cnt, ch;
+{
+    if (ch == 0) {
+	buf[cnt++] = '^';
+	buf[cnt] = '@';
+	return cnt;
+    }
+
+    if (iscntrl(ch)) {
+	buf[cnt++] = '^';
+	if (ch == '\177')
+	    buf[cnt] = '?';
+	else
+	    buf[cnt] = ch | 0100;
+    }
+    else if (ch == '^') {
+	buf[cnt++] = '\\';
+	buf[cnt] = '^';
+    }
+    else if (ch == '\\') {
+	buf[cnt++] = '\\';
+	buf[cnt] = '\\';
+    }
+    else if (ch == ' ' || (isprint(ch) && !isspace(ch))) {
+	buf[cnt] = ch;
+    }
+    else {
+	buf[cnt++] = '\\';
+	buf[cnt++] = ((ch >> 6) & 7) + '0';
+	buf[cnt++] = ((ch >> 3) & 7) + '0';
+	buf[cnt] = (ch & 7) + '0';
+    }
+    return cnt;
+}
+
+/* key__decode_str():
+ *	Make a printable version of the ey
+ */
+protected char *
+key__decode_str(str, buf, sep)
+    char   *str;
+    char   *buf;
+    char   *sep;
+{
+    char *b, *p;
+
+    b = buf;
+    if (sep[0] != '\0')
+	*b++ = sep[0];
+    if (*str == 0) {
+	*b++ = '^';
+	*b++ = '@';
+	if (sep[0] != '\0' && sep[1] != '\0')
+	    *b++ = sep[1];
+	*b++ = 0;
+	return buf;
+    }
+
+    for (p = str; *p != 0; p++) {
+	if (iscntrl((unsigned char) *p)) {
+	    *b++ = '^';
+	    if (*p == '\177')
+		*b++ = '?';
+	    else
+		*b++ = *p | 0100;
+	}
+	else if (*p == '^' || *p == '\\') {
+	    *b++ = '\\';
+	    *b++ = *p;
+	}
+	else if (*p == ' ' || (isprint((unsigned char) *p) && 
+			       !isspace((unsigned char) *p))) {
+	    *b++ = *p;
+	}
+	else {
+	    *b++ = '\\';
+	    *b++ = ((*p >> 6) & 7) + '0';
+	    *b++ = ((*p >> 3) & 7) + '0';
+	    *b++ = (*p & 7) + '0';
+	}
+    }
+    if (sep[0] != '\0' && sep[1] != '\0')
+	*b++ = sep[1];
+    *b++ = 0;
+    return buf;			/* should check for overflow */
+}
diff --git a/lib/libedit/key.h b/lib/libedit/key.h
new file mode 100644
index 00000000000..2ed3afc8fe0
--- /dev/null
+++ b/lib/libedit/key.h
@@ -0,0 +1,80 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)key.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.key.h: Key macro header
+ */
+#ifndef _h_el_key
+#define _h_el_key
+
+typedef union key_value_t {
+    el_action_t  cmd;	/* If it is a command the #	*/
+    char        *str;	/* If it is a string...		*/
+} key_value_t;
+
+typedef struct key_node_t key_node_t;
+
+typedef struct el_key_t {
+    char        *buf;	/* Key print buffer		*/
+    key_node_t  *map;	/* Key map			*/
+    key_value_t  val;	/* Local conversion buffer	*/
+} el_key_t;
+
+#define XK_CMD	0
+#define XK_STR	1
+#define XK_NOD	2
+#define XK_EXE	3
+
+protected int 		key_init	__P((EditLine *));
+protected void 		key_end		__P((EditLine *));
+protected key_value_t *	key_map_cmd	__P((EditLine *, int));
+protected key_value_t *	key_map_str	__P((EditLine *, char *));
+protected void		key_reset	__P((EditLine *));
+protected int 		key_get		__P((EditLine *, char *, 
+					     key_value_t *));
+protected void		key_add		__P((EditLine *, char *, key_value_t *,
+					     int));
+protected void		key_clear	__P((EditLine *, el_action_t *,
+					     char *));
+protected int		key_delete	__P((EditLine *, char *));
+protected void		key_print	__P((EditLine *, char *));
+protected void	        key_kprint	__P((EditLine *, char *, 
+					     key_value_t *, int));
+protected char 	       *key__decode_str	__P((char *, char *, char *));
+
+#endif /* _h_el_key */
diff --git a/lib/libedit/makelist b/lib/libedit/makelist
new file mode 100644
index 00000000000..7c4bebc6862
--- /dev/null
+++ b/lib/libedit/makelist
@@ -0,0 +1,184 @@
+#!/bin/sh -
+#
+# Copyright (c) 1992, 1993
+#	The Regents of the University of California.  All rights reserved.
+#
+# This code is derived from software contributed to Berkeley by
+# Christos Zoulas of Cornell University.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. All advertising materials mentioning features or use of this software
+#    must display the following acknowledgement:
+#	This product includes software developed by the University of
+#	California, Berkeley and its contributors.
+# 4. Neither the name of the University nor the names of its contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+#	@(#)makelist	5.3 (Berkeley) 6/4/93
+
+# makelist.sh: Automatically generate header files...
+
+AWK=/usr/bin/awk
+USAGE="Usage: $0 -h|-e|-fc|-fh|-bc|-bh <filenames>" 
+
+if [ "x$1" = "x" ]
+then
+    echo $USAGE 1>&2
+    exit 1
+fi
+
+FLAG="$1"
+shift
+
+FILES="$@"
+
+case $FLAG in
+-h)
+    set - `echo $FILES | sed -e 's/\\./_/g'`
+    hdr="_h_`basename $1`"
+    cat $FILES | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef %s\n#define %s\n", "'$hdr'", "'$hdr'");
+	}
+	/\(\):/ {
+	    pr = substr($2, 1, 2);
+	    if (pr == "vi" || pr == "em" || pr == "ed") {
+		name = substr($2, 1, length($2) - 3);
+		printf("protected el_action_t\t%-25.25s __P((EditLine *, int));\n", name);
+	    }
+	}
+	END {
+	    printf("#endif /* %s */\n", "'$hdr'");
+	}';;
+-bc)
+    cat $FILES | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#include \"sys.h\"\n#include \"el.h\"\n");
+	    printf("private struct el_bindings_t el_func_help[] = {\n");
+	    low = "abcdefghijklmnopqrstuvwxyz_";
+	    high = "ABCDEFGHIJKLMNOPQRSTUVWXYZ_";
+	    for (i = 1; i <= length(low); i++)
+		tr[substr(low, i, 1)] = substr(high, i, 1);
+	}
+	/\(\):/ {
+	    pr = substr($2, 1, 2);
+	    if (pr == "vi" || pr == "em" || pr == "ed") {
+		name = substr($2, 1, length($2) - 3);
+		uname = "";
+		fname = "";
+		for (i = 1; i <= length(name); i++) {
+		    s = substr(name, i, 1);
+		    uname = uname tr[s];
+		    if (s == "_")
+			s = "-";
+		    fname = fname s;
+		}
+		     
+		printf("    { %-30.30s %-30.30s\n","\"" fname "\",", uname ",");
+		ok = 1; 
+	    }
+	}
+	/^ \*/ {
+	    if (ok) {
+		printf("      \"");
+		for (i = 2; i < NF; i++)
+		    printf("%s ", $i);
+		printf("%s\" },\n", $i);
+		ok = 0;
+	    }
+	}
+	END {
+	    printf("    { NULL, 0, NULL }\n");
+	    printf("};\n");
+	    printf("\nprotected el_bindings_t* help__get()");
+	    printf("{ return el_func_help; }\n");
+	}';;
+-bh)
+    $AWK '
+	BEGIN { 
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef _h_help_c\n#define _h_help_c\n");
+	    printf("protected el_bindings_t *help__get\t__P((void));\n");
+	    printf("#endif /* _h_help_c */\n");
+	}' /dev/null;;
+-fh)
+    cat $FILES | $AWK '/el_action_t/ { print $3 }' | \
+    sort | tr '[a-z]' '[A-Z]' | $AWK '
+	BEGIN { 
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#ifndef _h_fcns_c\n#define _h_fcns_c\n");
+	    count = 0; 
+	}
+	{ 
+	    printf("#define\t%-30.30s\t%3d\n", $1, count++);
+	}
+	END {
+	    printf("#define\t%-30.30s\t%3d\n", "EL_NUM_FCNS", count);
+
+	    printf("typedef el_action_t (*el_func_t) __P((EditLine *, int));");
+	    printf("\nprotected el_func_t* func__get __P((void));\n");
+	    printf("#endif /* _h_fcns_c */\n");
+	}';;
+-fc)
+    cat $FILES | $AWK '/el_action_t/ { print $3 }' | sort | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#include \"sys.h\"\n#include \"el.h\"\n");
+	    printf("private el_func_t el_func[] = {");
+	    maxlen = 80;
+	    needn = 1;
+	    len = 0;
+	}
+	{
+	    clen = 25 + 2;
+	    len += clen;
+	    if (len >= maxlen) 
+		needn = 1;
+	    if (needn) {
+		printf("\n    ");
+		needn = 0;
+		len = 4 + clen;
+	    }
+	    s = $1 ",";
+	    printf("%-26.26s ", s);
+	}
+	END {
+	    printf("\n};\n");
+	    printf("\nprotected el_func_t* func__get() { return el_func; }\n");
+	}';;
+-e)
+	echo "$FILES" | tr ' ' '\012' | $AWK '
+	BEGIN {
+	    printf("/* Automatically generated file, do not edit */\n");
+	    printf("#define protected static\n");
+	    printf("#define SCCSID\n");
+	}
+	{
+	    printf("#include \"%s\"\n", $1);
+	}';;
+*)
+    echo $USAGE 1>&2
+    exit 1;;
+esac
diff --git a/lib/libedit/map.c b/lib/libedit/map.c
new file mode 100644
index 00000000000..db26f990eda
--- /dev/null
+++ b/lib/libedit/map.c
@@ -0,0 +1,1397 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)map.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * map.c: Editor function definitions 
+ */
+#include "sys.h"
+#include <stdlib.h>
+#include "el.h"
+
+#define N_KEYS 256
+
+private void map_print_key	 __P((EditLine *, el_action_t *, char *));
+private void map_print_some_keys __P((EditLine *, el_action_t *, int, int));
+private void map_print_all_keys	 __P((EditLine *));
+private void map_init_nls 	 __P((EditLine *));
+private void map_init_meta	 __P((EditLine *));
+
+/* keymap tables ; should be N_KEYS*sizeof(KEYCMD) bytes long */
+
+private el_action_t  el_map_emacs[] = {
+    /*   0 */	EM_SET_MARK,		/* ^@ */
+    /*   1 */	ED_MOVE_TO_BEG,		/* ^A */
+    /*   2 */	ED_PREV_CHAR,		/* ^B */
+    /*   3 */	ED_TTY_SIGINT,		/* ^C */
+    /*   4 */	EM_DELETE_OR_LIST,	/* ^D */
+    /*   5 */	ED_MOVE_TO_END,		/* ^E */
+    /*   6 */	ED_NEXT_CHAR,		/* ^F */
+    /*   7 */	ED_UNASSIGNED,		/* ^G */
+    /*   8 */	ED_DELETE_PREV_CHAR,	/* ^H */
+    /*   9 */	ED_UNASSIGNED,		/* ^I */
+    /*  10 */	ED_NEWLINE,		/* ^J */
+    /*  11 */	ED_KILL_LINE,		/* ^K */
+    /*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+    /*  13 */	ED_NEWLINE,		/* ^M */
+    /*  14 */	ED_NEXT_HISTORY,	/* ^N */
+    /*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+    /*  16 */	ED_PREV_HISTORY,	/* ^P */
+    /*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+    /*  18 */	ED_REDISPLAY,		/* ^R */
+    /*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+    /*  20 */	ED_TRANSPOSE_CHARS,	/* ^T */
+    /*  21 */	EM_KILL_LINE,		/* ^U */
+    /*  22 */	ED_QUOTED_INSERT,	/* ^V */
+    /*  23 */	EM_KILL_REGION,		/* ^W */
+    /*  24 */	ED_SEQUENCE_LEAD_IN,	/* ^X */
+    /*  25 */	EM_YANK,		/* ^Y */
+    /*  26 */	ED_TTY_SIGTSTP,		/* ^Z */
+    /*  27 */	EM_META_NEXT,		/* ^[ */
+    /*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+    /*  29 */	ED_TTY_DSUSP,		/* ^] */
+    /*  30 */	ED_UNASSIGNED,		/* ^^ */
+    /*  31 */	ED_UNASSIGNED,		/* ^_ */
+    /*  32 */	ED_INSERT,		/* SPACE */
+    /*  33 */	ED_INSERT,		/* ! */
+    /*  34 */	ED_INSERT,		/* " */
+    /*  35 */	ED_INSERT,		/* # */
+    /*  36 */	ED_INSERT,		/* $ */
+    /*  37 */	ED_INSERT,		/* % */
+    /*  38 */	ED_INSERT,		/* & */
+    /*  39 */	ED_INSERT,		/* ' */
+    /*  40 */	ED_INSERT,		/* ( */
+    /*  41 */	ED_INSERT,		/* ) */
+    /*  42 */	ED_INSERT,		/* * */
+    /*  43 */	ED_INSERT,		/* + */
+    /*  44 */	ED_INSERT,		/* , */
+    /*  45 */	ED_INSERT,		/* - */
+    /*  46 */	ED_INSERT,		/* . */
+    /*  47 */	ED_INSERT,		/* / */
+    /*  48 */	ED_DIGIT,		/* 0 */
+    /*  49 */	ED_DIGIT,		/* 1 */
+    /*  50 */	ED_DIGIT,		/* 2 */
+    /*  51 */	ED_DIGIT,		/* 3 */
+    /*  52 */	ED_DIGIT,		/* 4 */
+    /*  53 */	ED_DIGIT,		/* 5 */
+    /*  54 */	ED_DIGIT,		/* 6 */
+    /*  55 */	ED_DIGIT,		/* 7 */
+    /*  56 */	ED_DIGIT,		/* 8 */
+    /*  57 */	ED_DIGIT,		/* 9 */
+    /*  58 */	ED_INSERT,		/* : */
+    /*  59 */	ED_INSERT,		/* ; */
+    /*  60 */	ED_INSERT,		/* < */
+    /*  61 */	ED_INSERT,		/* = */
+    /*  62 */	ED_INSERT,		/* > */
+    /*  63 */	ED_INSERT,		/* ? */
+    /*  64 */	ED_INSERT,		/* @ */
+    /*  65 */	ED_INSERT,		/* A */
+    /*  66 */	ED_INSERT,		/* B */
+    /*  67 */	ED_INSERT,		/* C */
+    /*  68 */	ED_INSERT,		/* D */
+    /*  69 */	ED_INSERT,		/* E */
+    /*  70 */	ED_INSERT,		/* F */
+    /*  71 */	ED_INSERT,		/* G */
+    /*  72 */	ED_INSERT,		/* H */
+    /*  73 */	ED_INSERT,		/* I */
+    /*  74 */	ED_INSERT,		/* J */
+    /*  75 */	ED_INSERT,		/* K */
+    /*  76 */	ED_INSERT,		/* L */
+    /*  77 */	ED_INSERT,		/* M */
+    /*  78 */	ED_INSERT,		/* N */
+    /*  79 */	ED_INSERT,		/* O */
+    /*  80 */	ED_INSERT,		/* P */
+    /*  81 */	ED_INSERT,		/* Q */
+    /*  82 */	ED_INSERT,		/* R */
+    /*  83 */	ED_INSERT,		/* S */
+    /*  84 */	ED_INSERT,		/* T */
+    /*  85 */	ED_INSERT,		/* U */
+    /*  86 */	ED_INSERT,		/* V */
+    /*  87 */	ED_INSERT,		/* W */
+    /*  88 */	ED_INSERT,		/* X */
+    /*  89 */	ED_INSERT,		/* Y */
+    /*  90 */	ED_INSERT,		/* Z */
+    /*  91 */	ED_INSERT,		/* [ */
+    /*  92 */	ED_INSERT,		/* \ */
+    /*  93 */	ED_INSERT,		/* ] */
+    /*  94 */	ED_INSERT,		/* ^ */
+    /*  95 */	ED_INSERT,		/* _ */
+    /*  96 */	ED_INSERT,		/* ` */
+    /*  97 */	ED_INSERT,		/* a */
+    /*  98 */	ED_INSERT,		/* b */
+    /*  99 */	ED_INSERT,		/* c */
+    /* 100 */	ED_INSERT,		/* d */
+    /* 101 */	ED_INSERT,		/* e */
+    /* 102 */	ED_INSERT,		/* f */
+    /* 103 */	ED_INSERT,		/* g */
+    /* 104 */	ED_INSERT,		/* h */
+    /* 105 */	ED_INSERT,		/* i */
+    /* 106 */	ED_INSERT,		/* j */
+    /* 107 */	ED_INSERT,		/* k */
+    /* 108 */	ED_INSERT,		/* l */
+    /* 109 */	ED_INSERT,		/* m */
+    /* 110 */	ED_INSERT,		/* n */
+    /* 111 */	ED_INSERT,		/* o */
+    /* 112 */	ED_INSERT,		/* p */
+    /* 113 */	ED_INSERT,		/* q */
+    /* 114 */	ED_INSERT,		/* r */
+    /* 115 */	ED_INSERT,		/* s */
+    /* 116 */	ED_INSERT,		/* t */
+    /* 117 */	ED_INSERT,		/* u */
+    /* 118 */	ED_INSERT,		/* v */
+    /* 119 */	ED_INSERT,		/* w */
+    /* 120 */	ED_INSERT,		/* x */
+    /* 121 */	ED_INSERT,		/* y */
+    /* 122 */	ED_INSERT,		/* z */
+    /* 123 */	ED_INSERT,		/* { */
+    /* 124 */	ED_INSERT,		/* | */
+    /* 125 */	ED_INSERT,		/* } */
+    /* 126 */	ED_INSERT,		/* ~ */
+    /* 127 */	ED_DELETE_PREV_CHAR,	/* ^? */
+    /* 128 */	ED_UNASSIGNED,		/* M-^@ */
+    /* 129 */	ED_UNASSIGNED,		/* M-^A */
+    /* 130 */	ED_UNASSIGNED,		/* M-^B */
+    /* 131 */	ED_UNASSIGNED,		/* M-^C */
+    /* 132 */	ED_UNASSIGNED,		/* M-^D */
+    /* 133 */	ED_UNASSIGNED,		/* M-^E */
+    /* 134 */	ED_UNASSIGNED,		/* M-^F */
+    /* 135 */	ED_UNASSIGNED,		/* M-^G */
+    /* 136 */	ED_DELETE_PREV_WORD,	/* M-^H */
+    /* 137 */	ED_UNASSIGNED,		/* M-^I */
+    /* 138 */	ED_UNASSIGNED,		/* M-^J */
+    /* 139 */	ED_UNASSIGNED,		/* M-^K */
+    /* 140 */	ED_CLEAR_SCREEN,		/* M-^L */
+    /* 141 */	ED_UNASSIGNED,		/* M-^M */
+    /* 142 */	ED_UNASSIGNED,		/* M-^N */
+    /* 143 */	ED_UNASSIGNED,		/* M-^O */
+    /* 144 */	ED_UNASSIGNED,		/* M-^P */
+    /* 145 */	ED_UNASSIGNED,		/* M-^Q */
+    /* 146 */	ED_UNASSIGNED,		/* M-^R */
+    /* 147 */	ED_UNASSIGNED,		/* M-^S */
+    /* 148 */	ED_UNASSIGNED,		/* M-^T */
+    /* 149 */	ED_UNASSIGNED,		/* M-^U */
+    /* 150 */	ED_UNASSIGNED,		/* M-^V */
+    /* 151 */	ED_UNASSIGNED,		/* M-^W */
+    /* 152 */	ED_UNASSIGNED,		/* M-^X */
+    /* 153 */	ED_UNASSIGNED,		/* M-^Y */
+    /* 154 */	ED_UNASSIGNED,		/* M-^Z */
+    /* 155 */	ED_UNASSIGNED,		/* M-^[ */
+    /* 156 */	ED_UNASSIGNED,		/* M-^\ */
+    /* 157 */	ED_UNASSIGNED,		/* M-^] */
+    /* 158 */	ED_UNASSIGNED,		/* M-^^ */
+    /* 159 */	EM_COPY_PREV_WORD,	/* M-^_ */
+    /* 160 */	ED_UNASSIGNED,		/* M-SPACE */
+    /* 161 */	ED_UNASSIGNED,		/* M-! */
+    /* 162 */	ED_UNASSIGNED,		/* M-" */
+    /* 163 */	ED_UNASSIGNED,		/* M-# */
+    /* 164 */	ED_UNASSIGNED,		/* M-$ */
+    /* 165 */	ED_UNASSIGNED,		/* M-% */
+    /* 166 */	ED_UNASSIGNED,		/* M-& */
+    /* 167 */	ED_UNASSIGNED,		/* M-' */
+    /* 168 */	ED_UNASSIGNED,		/* M-( */
+    /* 169 */	ED_UNASSIGNED,		/* M-) */
+    /* 170 */	ED_UNASSIGNED,		/* M-* */
+    /* 171 */	ED_UNASSIGNED,		/* M-+ */
+    /* 172 */	ED_UNASSIGNED,		/* M-, */
+    /* 173 */	ED_UNASSIGNED,		/* M-- */
+    /* 174 */	ED_UNASSIGNED,		/* M-. */
+    /* 175 */	ED_UNASSIGNED,		/* M-/ */
+    /* 176 */	ED_ARGUMENT_DIGIT,	/* M-0 */
+    /* 177 */	ED_ARGUMENT_DIGIT,	/* M-1 */
+    /* 178 */	ED_ARGUMENT_DIGIT,	/* M-2 */
+    /* 179 */	ED_ARGUMENT_DIGIT,	/* M-3 */
+    /* 180 */	ED_ARGUMENT_DIGIT,	/* M-4 */
+    /* 181 */	ED_ARGUMENT_DIGIT,	/* M-5 */
+    /* 182 */	ED_ARGUMENT_DIGIT,	/* M-6 */
+    /* 183 */	ED_ARGUMENT_DIGIT,	/* M-7 */
+    /* 184 */	ED_ARGUMENT_DIGIT,	/* M-8 */
+    /* 185 */	ED_ARGUMENT_DIGIT,	/* M-9 */
+    /* 186 */	ED_UNASSIGNED,		/* M-: */
+    /* 187 */	ED_UNASSIGNED,		/* M-; */
+    /* 188 */	ED_UNASSIGNED,		/* M-< */
+    /* 189 */	ED_UNASSIGNED,		/* M-= */
+    /* 190 */	ED_UNASSIGNED,		/* M-> */
+    /* 191 */	ED_UNASSIGNED,		/* M-? */
+    /* 192 */	ED_UNASSIGNED,		/* M-@ */
+    /* 193 */	ED_UNASSIGNED,		/* M-A */
+    /* 194 */	ED_PREV_WORD,		/* M-B */
+    /* 195 */	EM_CAPITOL_CASE,		/* M-C */
+    /* 196 */	EM_DELETE_NEXT_WORD,	/* M-D */
+    /* 197 */	ED_UNASSIGNED,		/* M-E */
+    /* 198 */	EM_NEXT_WORD,		/* M-F */
+    /* 199 */	ED_UNASSIGNED,		/* M-G */
+    /* 200 */	ED_UNASSIGNED,		/* M-H */
+    /* 201 */	ED_UNASSIGNED,		/* M-I */
+    /* 202 */	ED_UNASSIGNED,		/* M-J */
+    /* 203 */	ED_UNASSIGNED,		/* M-K */
+    /* 204 */	EM_LOWER_CASE,		/* M-L */
+    /* 205 */	ED_UNASSIGNED,		/* M-M */
+    /* 206 */	ED_SEARCH_NEXT_HISTORY,	/* M-N */
+    /* 207 */	ED_SEQUENCE_LEAD_IN,	/* M-O */
+    /* 208 */	ED_SEARCH_PREV_HISTORY,	/* M-P */
+    /* 209 */	ED_UNASSIGNED,		/* M-Q */
+    /* 210 */	ED_UNASSIGNED,		/* M-R */
+    /* 211 */	ED_UNASSIGNED,		/* M-S */
+    /* 212 */	ED_UNASSIGNED,		/* M-T */
+    /* 213 */	EM_UPPER_CASE,		/* M-U */
+    /* 214 */	ED_UNASSIGNED,		/* M-V */
+    /* 215 */	EM_COPY_REGION,		/* M-W */
+    /* 216 */	ED_COMMAND,		/* M-X */
+    /* 217 */	ED_UNASSIGNED,		/* M-Y */
+    /* 218 */	ED_UNASSIGNED,		/* M-Z */
+    /* 219 */	ED_SEQUENCE_LEAD_IN,	/* M-[ */
+    /* 220 */	ED_UNASSIGNED,		/* M-\ */
+    /* 221 */	ED_UNASSIGNED,		/* M-] */
+    /* 222 */	ED_UNASSIGNED,		/* M-^ */
+    /* 223 */	ED_UNASSIGNED,		/* M-_ */
+    /* 223 */	ED_UNASSIGNED,		/* M-` */
+    /* 224 */	ED_UNASSIGNED,		/* M-a */
+    /* 225 */	ED_PREV_WORD,		/* M-b */
+    /* 226 */	EM_CAPITOL_CASE,	/* M-c */
+    /* 227 */	EM_DELETE_NEXT_WORD,	/* M-d */
+    /* 228 */	ED_UNASSIGNED,		/* M-e */
+    /* 229 */	EM_NEXT_WORD,		/* M-f */
+    /* 230 */	ED_UNASSIGNED,		/* M-g */
+    /* 231 */	ED_UNASSIGNED,		/* M-h */
+    /* 232 */	ED_UNASSIGNED,		/* M-i */
+    /* 233 */	ED_UNASSIGNED,		/* M-j */
+    /* 234 */	ED_UNASSIGNED,		/* M-k */
+    /* 235 */	EM_LOWER_CASE,		/* M-l */
+    /* 236 */	ED_UNASSIGNED,		/* M-m */
+    /* 237 */	ED_SEARCH_NEXT_HISTORY,	/* M-n */
+    /* 238 */	ED_UNASSIGNED,		/* M-o */
+    /* 239 */	ED_SEARCH_PREV_HISTORY,	/* M-p */
+    /* 240 */	ED_UNASSIGNED,		/* M-q */
+    /* 241 */	ED_UNASSIGNED,		/* M-r */
+    /* 242 */	ED_UNASSIGNED,		/* M-s */
+    /* 243 */	ED_UNASSIGNED,		/* M-t */
+    /* 244 */	EM_UPPER_CASE,		/* M-u */
+    /* 245 */	ED_UNASSIGNED,		/* M-v */
+    /* 246 */	EM_COPY_REGION,		/* M-w */
+    /* 247 */	ED_COMMAND,		/* M-x */
+    /* 248 */	ED_UNASSIGNED,		/* M-y */
+    /* 249 */	ED_UNASSIGNED,		/* M-z */
+    /* 250 */	ED_UNASSIGNED,		/* M-{ */
+    /* 251 */	ED_UNASSIGNED,		/* M-| */
+    /* 252 */	ED_UNASSIGNED,		/* M-} */
+    /* 253 */	ED_UNASSIGNED,		/* M-~ */
+    /* 254 */	ED_DELETE_PREV_WORD		/* M-^? */
+    /* 255 */
+};
+
+/*
+ * keymap table for vi.  Each index into above tbl; should be
+ * N_KEYS entries long.  Vi mode uses a sticky-extend to do command mode:
+ * insert mode characters are in the normal keymap, and command mode
+ * in the extended keymap.
+ */
+private el_action_t  el_map_vi_insert[] = {
+#ifdef KSHVI
+    /*   0 */	ED_UNASSIGNED,		/* ^@ */
+    /*   1 */	ED_INSERT,		/* ^A */
+    /*   2 */	ED_INSERT,		/* ^B */
+    /*   3 */	ED_INSERT,		/* ^C */
+    /*   4 */	VI_LIST_OR_EOF,		/* ^D */
+    /*   5 */	ED_INSERT,		/* ^E */
+    /*   6 */	ED_INSERT,		/* ^F */
+    /*   7 */	ED_INSERT,		/* ^G */
+    /*   8 */	VI_DELETE_PREV_CHAR,	/* ^H */   /* BackSpace key */
+    /*   9 */	ED_INSERT,		/* ^I */   /* Tab Key  */
+    /*  10 */	ED_NEWLINE,		/* ^J */
+    /*  11 */	ED_INSERT,		/* ^K */
+    /*  12 */	ED_INSERT,		/* ^L */
+    /*  13 */	ED_NEWLINE,		/* ^M */
+    /*  14 */	ED_INSERT,		/* ^N */
+    /*  15 */	ED_INSERT,		/* ^O */
+    /*  16 */	ED_INSERT,		/* ^P */
+    /*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+    /*  18 */	ED_INSERT,		/* ^R */
+    /*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+    /*  20 */	ED_INSERT,		/* ^T */
+    /*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+    /*  22 */	ED_QUOTED_INSERT,	/* ^V */
+    /*  23 */	ED_DELETE_PREV_WORD,	/* ^W */  /* Only until strt edit pos */
+    /*  24 */	ED_INSERT,		/* ^X */
+    /*  25 */	ED_INSERT,		/* ^Y */
+    /*  26 */	ED_INSERT,		/* ^Z */
+    /*  27 */	VI_COMMAND_MODE,	/* ^[ */  /* [ Esc ] key */
+    /*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+    /*  29 */	ED_INSERT,		/* ^] */
+    /*  30 */	ED_INSERT,		/* ^^ */
+    /*  31 */	ED_INSERT,		/* ^_ */
+#else /* !KSHVI */
+    /*   0 */	ED_UNASSIGNED,		/* ^@ */   /* NOTE: These mappings do */
+    /*   1 */	ED_MOVE_TO_BEG,		/* ^A */   /* NOT Correspond well to  */
+    /*   2 */	ED_PREV_CHAR,		/* ^B */   /* the KSH VI editing as-  */
+    /*   3 */	ED_TTY_SIGINT,		/* ^C */   /* signments. On the other */
+    /*   4 */	VI_LIST_OR_EOF,		/* ^D */   /* hand they are convenient*/
+    /*   5 */	ED_MOVE_TO_END,		/* ^E */   /* and many people have    */
+    /*   6 */	ED_NEXT_CHAR,		/* ^F */   /* have gotten used to them*/
+    /*   7 */	ED_UNASSIGNED,		/* ^G */
+    /*   8 */	ED_DELETE_PREV_CHAR,	/* ^H */   /* BackSpace key */
+    /*   9 */	ED_UNASSIGNED,		/* ^I */   /* Tab Key */
+    /*  10 */	ED_NEWLINE,		/* ^J */
+    /*  11 */	ED_KILL_LINE,		/* ^K */
+    /*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+    /*  13 */	ED_NEWLINE,		/* ^M */
+    /*  14 */	ED_NEXT_HISTORY,	/* ^N */
+    /*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+    /*  16 */	ED_PREV_HISTORY,	/* ^P */
+    /*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+    /*  18 */	ED_REDISPLAY,		/* ^R */
+    /*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+    /*  20 */	ED_TRANSPOSE_CHARS,	/* ^T */
+    /*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+    /*  22 */	ED_QUOTED_INSERT,	/* ^V */
+    /*  23 */	ED_DELETE_PREV_WORD,	/* ^W */
+    /*  24 */	ED_UNASSIGNED,		/* ^X */
+    /*  25 */	ED_TTY_DSUSP,		/* ^Y */
+    /*  26 */	ED_TTY_SIGTSTP,		/* ^Z */
+    /*  27 */	VI_COMMAND_MODE,	/* ^[ */
+    /*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+    /*  29 */	ED_UNASSIGNED,		/* ^] */
+    /*  30 */	ED_UNASSIGNED,		/* ^^ */
+    /*  31 */	ED_UNASSIGNED,		/* ^_ */
+#endif  /* KSHVI */
+    /*  32 */	ED_INSERT,		/* SPACE */
+    /*  33 */	ED_INSERT,		/* ! */
+    /*  34 */	ED_INSERT,		/* " */
+    /*  35 */	ED_INSERT,		/* # */
+    /*  36 */	ED_INSERT,		/* $ */
+    /*  37 */	ED_INSERT,		/* % */
+    /*  38 */	ED_INSERT,		/* & */
+    /*  39 */	ED_INSERT,		/* ' */
+    /*  40 */	ED_INSERT,		/* ( */
+    /*  41 */	ED_INSERT,		/* ) */
+    /*  42 */	ED_INSERT,		/* * */
+    /*  43 */	ED_INSERT,		/* + */
+    /*  44 */	ED_INSERT,		/* , */
+    /*  45 */	ED_INSERT,		/* - */
+    /*  46 */	ED_INSERT,		/* . */
+    /*  47 */	ED_INSERT,		/* / */
+    /*  48 */	ED_INSERT,		/* 0 */
+    /*  49 */	ED_INSERT,		/* 1 */
+    /*  50 */	ED_INSERT,		/* 2 */
+    /*  51 */	ED_INSERT,		/* 3 */
+    /*  52 */	ED_INSERT,		/* 4 */
+    /*  53 */	ED_INSERT,		/* 5 */
+    /*  54 */	ED_INSERT,		/* 6 */
+    /*  55 */	ED_INSERT,		/* 7 */
+    /*  56 */	ED_INSERT,		/* 8 */
+    /*  57 */	ED_INSERT,		/* 9 */
+    /*  58 */	ED_INSERT,		/* : */
+    /*  59 */	ED_INSERT,		/* ; */
+    /*  60 */	ED_INSERT,		/* < */
+    /*  61 */	ED_INSERT,		/* = */
+    /*  62 */	ED_INSERT,		/* > */
+    /*  63 */	ED_INSERT,		/* ? */
+    /*  64 */	ED_INSERT,		/* @ */
+    /*  65 */	ED_INSERT,		/* A */
+    /*  66 */	ED_INSERT,		/* B */
+    /*  67 */	ED_INSERT,		/* C */
+    /*  68 */	ED_INSERT,		/* D */
+    /*  69 */	ED_INSERT,		/* E */
+    /*  70 */	ED_INSERT,		/* F */
+    /*  71 */	ED_INSERT,		/* G */
+    /*  72 */	ED_INSERT,		/* H */
+    /*  73 */	ED_INSERT,		/* I */
+    /*  74 */	ED_INSERT,		/* J */
+    /*  75 */	ED_INSERT,		/* K */
+    /*  76 */	ED_INSERT,		/* L */
+    /*  77 */	ED_INSERT,		/* M */
+    /*  78 */	ED_INSERT,		/* N */
+    /*  79 */	ED_INSERT,		/* O */
+    /*  80 */	ED_INSERT,		/* P */
+    /*  81 */	ED_INSERT,		/* Q */
+    /*  82 */	ED_INSERT,		/* R */
+    /*  83 */	ED_INSERT,		/* S */
+    /*  84 */	ED_INSERT,		/* T */
+    /*  85 */	ED_INSERT,		/* U */
+    /*  86 */	ED_INSERT,		/* V */
+    /*  87 */	ED_INSERT,		/* W */
+    /*  88 */	ED_INSERT,		/* X */
+    /*  89 */	ED_INSERT,		/* Y */
+    /*  90 */	ED_INSERT,		/* Z */
+    /*  91 */	ED_INSERT,		/* [ */
+    /*  92 */	ED_INSERT,		/* \ */
+    /*  93 */	ED_INSERT,		/* ] */
+    /*  94 */	ED_INSERT,		/* ^ */
+    /*  95 */	ED_INSERT,		/* _ */
+    /*  96 */	ED_INSERT,		/* ` */
+    /*  97 */	ED_INSERT,		/* a */
+    /*  98 */	ED_INSERT,		/* b */
+    /*  99 */	ED_INSERT,		/* c */
+    /* 100 */	ED_INSERT,		/* d */
+    /* 101 */	ED_INSERT,		/* e */
+    /* 102 */	ED_INSERT,		/* f */
+    /* 103 */	ED_INSERT,		/* g */
+    /* 104 */	ED_INSERT,		/* h */
+    /* 105 */	ED_INSERT,		/* i */
+    /* 106 */	ED_INSERT,		/* j */
+    /* 107 */	ED_INSERT,		/* k */
+    /* 108 */	ED_INSERT,		/* l */
+    /* 109 */	ED_INSERT,		/* m */
+    /* 110 */	ED_INSERT,		/* n */
+    /* 111 */	ED_INSERT,		/* o */
+    /* 112 */	ED_INSERT,		/* p */
+    /* 113 */	ED_INSERT,		/* q */
+    /* 114 */	ED_INSERT,		/* r */
+    /* 115 */	ED_INSERT,		/* s */
+    /* 116 */	ED_INSERT,		/* t */
+    /* 117 */	ED_INSERT,		/* u */
+    /* 118 */	ED_INSERT,		/* v */
+    /* 119 */	ED_INSERT,		/* w */
+    /* 120 */	ED_INSERT,		/* x */
+    /* 121 */	ED_INSERT,		/* y */
+    /* 122 */	ED_INSERT,		/* z */
+    /* 123 */	ED_INSERT,		/* { */
+    /* 124 */	ED_INSERT,		/* | */
+    /* 125 */	ED_INSERT,		/* } */
+    /* 126 */	ED_INSERT,		/* ~ */
+    /* 127 */	ED_DELETE_PREV_CHAR,	/* ^? */
+    /* 128 */	ED_UNASSIGNED,		/* M-^@ */
+    /* 129 */	ED_UNASSIGNED,		/* M-^A */
+    /* 130 */	ED_UNASSIGNED,		/* M-^B */
+    /* 131 */	ED_UNASSIGNED,		/* M-^C */
+    /* 132 */	ED_UNASSIGNED,		/* M-^D */
+    /* 133 */	ED_UNASSIGNED,		/* M-^E */
+    /* 134 */	ED_UNASSIGNED,		/* M-^F */
+    /* 135 */	ED_UNASSIGNED,		/* M-^G */
+    /* 136 */	ED_UNASSIGNED,		/* M-^H */
+    /* 137 */	ED_UNASSIGNED,		/* M-^I */
+    /* 138 */	ED_UNASSIGNED,		/* M-^J */
+    /* 139 */	ED_UNASSIGNED,		/* M-^K */
+    /* 140 */	ED_UNASSIGNED,		/* M-^L */
+    /* 141 */	ED_UNASSIGNED,		/* M-^M */
+    /* 142 */	ED_UNASSIGNED,		/* M-^N */
+    /* 143 */	ED_UNASSIGNED,		/* M-^O */
+    /* 144 */	ED_UNASSIGNED,		/* M-^P */
+    /* 145 */	ED_UNASSIGNED,		/* M-^Q */
+    /* 146 */	ED_UNASSIGNED,		/* M-^R */
+    /* 147 */	ED_UNASSIGNED,		/* M-^S */
+    /* 148 */	ED_UNASSIGNED,		/* M-^T */
+    /* 149 */	ED_UNASSIGNED,		/* M-^U */
+    /* 150 */	ED_UNASSIGNED,		/* M-^V */
+    /* 151 */	ED_UNASSIGNED,		/* M-^W */
+    /* 152 */	ED_UNASSIGNED,		/* M-^X */
+    /* 153 */	ED_UNASSIGNED,		/* M-^Y */
+    /* 154 */	ED_UNASSIGNED,		/* M-^Z */
+    /* 155 */	ED_UNASSIGNED,		/* M-^[ */
+    /* 156 */	ED_UNASSIGNED,		/* M-^\ */
+    /* 157 */	ED_UNASSIGNED,		/* M-^] */
+    /* 158 */	ED_UNASSIGNED,		/* M-^^ */
+    /* 159 */	ED_UNASSIGNED,		/* M-^_ */
+    /* 160 */	ED_UNASSIGNED,		/* M-SPACE */
+    /* 161 */	ED_UNASSIGNED,		/* M-! */
+    /* 162 */	ED_UNASSIGNED,		/* M-" */
+    /* 163 */	ED_UNASSIGNED,		/* M-# */
+    /* 164 */	ED_UNASSIGNED,		/* M-$ */
+    /* 165 */	ED_UNASSIGNED,		/* M-% */
+    /* 166 */	ED_UNASSIGNED,		/* M-& */
+    /* 167 */	ED_UNASSIGNED,		/* M-' */
+    /* 168 */	ED_UNASSIGNED,		/* M-( */
+    /* 169 */	ED_UNASSIGNED,		/* M-) */
+    /* 170 */	ED_UNASSIGNED,		/* M-* */
+    /* 171 */	ED_UNASSIGNED,		/* M-+ */
+    /* 172 */	ED_UNASSIGNED,		/* M-, */
+    /* 173 */	ED_UNASSIGNED,		/* M-- */
+    /* 174 */	ED_UNASSIGNED,		/* M-. */
+    /* 175 */	ED_UNASSIGNED,		/* M-/ */
+    /* 176 */	ED_UNASSIGNED,		/* M-0 */
+    /* 177 */	ED_UNASSIGNED,		/* M-1 */
+    /* 178 */	ED_UNASSIGNED,		/* M-2 */
+    /* 179 */	ED_UNASSIGNED,		/* M-3 */
+    /* 180 */	ED_UNASSIGNED,		/* M-4 */
+    /* 181 */	ED_UNASSIGNED,		/* M-5 */
+    /* 182 */	ED_UNASSIGNED,		/* M-6 */
+    /* 183 */	ED_UNASSIGNED,		/* M-7 */
+    /* 184 */	ED_UNASSIGNED,		/* M-8 */
+    /* 185 */	ED_UNASSIGNED,		/* M-9 */
+    /* 186 */	ED_UNASSIGNED,		/* M-: */
+    /* 187 */	ED_UNASSIGNED,		/* M-; */
+    /* 188 */	ED_UNASSIGNED,		/* M-< */
+    /* 189 */	ED_UNASSIGNED,		/* M-= */
+    /* 190 */	ED_UNASSIGNED,		/* M-> */
+    /* 191 */	ED_UNASSIGNED,		/* M-? */
+    /* 192 */	ED_UNASSIGNED,		/* M-@ */
+    /* 193 */	ED_UNASSIGNED,		/* M-A */
+    /* 194 */	ED_UNASSIGNED,		/* M-B */
+    /* 195 */	ED_UNASSIGNED,		/* M-C */
+    /* 196 */	ED_UNASSIGNED,		/* M-D */
+    /* 197 */	ED_UNASSIGNED,		/* M-E */
+    /* 198 */	ED_UNASSIGNED,		/* M-F */
+    /* 199 */	ED_UNASSIGNED,		/* M-G */
+    /* 200 */	ED_UNASSIGNED,		/* M-H */
+    /* 201 */	ED_UNASSIGNED,		/* M-I */
+    /* 202 */	ED_UNASSIGNED,		/* M-J */
+    /* 203 */	ED_UNASSIGNED,		/* M-K */
+    /* 204 */	ED_UNASSIGNED,		/* M-L */
+    /* 205 */	ED_UNASSIGNED,		/* M-M */
+    /* 206 */	ED_UNASSIGNED,		/* M-N */
+    /* 207 */	ED_UNASSIGNED,		/* M-O */
+    /* 208 */	ED_UNASSIGNED,		/* M-P */
+    /* 209 */	ED_UNASSIGNED,		/* M-Q */
+    /* 210 */	ED_UNASSIGNED,		/* M-R */
+    /* 211 */	ED_UNASSIGNED,		/* M-S */
+    /* 212 */	ED_UNASSIGNED,		/* M-T */
+    /* 213 */	ED_UNASSIGNED,		/* M-U */
+    /* 214 */	ED_UNASSIGNED,		/* M-V */
+    /* 215 */	ED_UNASSIGNED,		/* M-W */
+    /* 216 */	ED_UNASSIGNED,		/* M-X */
+    /* 217 */	ED_UNASSIGNED,		/* M-Y */
+    /* 218 */	ED_UNASSIGNED,		/* M-Z */
+    /* 219 */	ED_UNASSIGNED,		/* M-[ */
+    /* 220 */	ED_UNASSIGNED,		/* M-\ */
+    /* 221 */	ED_UNASSIGNED,		/* M-] */
+    /* 222 */	ED_UNASSIGNED,		/* M-^ */
+    /* 223 */	ED_UNASSIGNED,		/* M-_ */
+    /* 224 */	ED_UNASSIGNED,		/* M-` */
+    /* 225 */	ED_UNASSIGNED,		/* M-a */
+    /* 226 */	ED_UNASSIGNED,		/* M-b */
+    /* 227 */	ED_UNASSIGNED,		/* M-c */
+    /* 228 */	ED_UNASSIGNED,		/* M-d */
+    /* 229 */	ED_UNASSIGNED,		/* M-e */
+    /* 230 */	ED_UNASSIGNED,		/* M-f */
+    /* 231 */	ED_UNASSIGNED,		/* M-g */
+    /* 232 */	ED_UNASSIGNED,		/* M-h */
+    /* 233 */	ED_UNASSIGNED,		/* M-i */
+    /* 234 */	ED_UNASSIGNED,		/* M-j */
+    /* 235 */	ED_UNASSIGNED,		/* M-k */
+    /* 236 */	ED_UNASSIGNED,		/* M-l */
+    /* 237 */	ED_UNASSIGNED,		/* M-m */
+    /* 238 */	ED_UNASSIGNED,		/* M-n */
+    /* 239 */	ED_UNASSIGNED,		/* M-o */
+    /* 240 */	ED_UNASSIGNED,		/* M-p */
+    /* 241 */	ED_UNASSIGNED,		/* M-q */
+    /* 242 */	ED_UNASSIGNED,		/* M-r */
+    /* 243 */	ED_UNASSIGNED,		/* M-s */
+    /* 244 */	ED_UNASSIGNED,		/* M-t */
+    /* 245 */	ED_UNASSIGNED,		/* M-u */
+    /* 246 */	ED_UNASSIGNED,		/* M-v */
+    /* 247 */	ED_UNASSIGNED,		/* M-w */
+    /* 248 */	ED_UNASSIGNED,		/* M-x */
+    /* 249 */	ED_UNASSIGNED,		/* M-y */
+    /* 250 */	ED_UNASSIGNED,		/* M-z */
+    /* 251 */	ED_UNASSIGNED,		/* M-{ */
+    /* 252 */	ED_UNASSIGNED,		/* M-| */
+    /* 253 */	ED_UNASSIGNED,		/* M-} */
+    /* 254 */	ED_UNASSIGNED,		/* M-~ */
+    /* 255 */	ED_UNASSIGNED		/* M-^? */
+};
+
+private el_action_t  el_map_vi_command[] = {
+    /*   0 */	ED_UNASSIGNED,		/* ^@ */
+    /*   1 */	ED_MOVE_TO_BEG,		/* ^A */
+    /*   2 */	ED_UNASSIGNED,		/* ^B */
+    /*   3 */	ED_TTY_SIGINT,		/* ^C */
+    /*   4 */	ED_UNASSIGNED,		/* ^D */
+    /*   5 */	ED_MOVE_TO_END,		/* ^E */
+    /*   6 */	ED_UNASSIGNED,		/* ^F */
+    /*   7 */	ED_UNASSIGNED,		/* ^G */
+    /*   8 */	ED_PREV_CHAR,		/* ^H */
+    /*   9 */	ED_UNASSIGNED,		/* ^I */
+    /*  10 */	ED_NEWLINE,		/* ^J */
+    /*  11 */	ED_KILL_LINE,		/* ^K */
+    /*  12 */	ED_CLEAR_SCREEN,	/* ^L */
+    /*  13 */	ED_NEWLINE,		/* ^M */
+    /*  14 */	ED_NEXT_HISTORY,	/* ^N */
+    /*  15 */	ED_TTY_FLUSH_OUTPUT,	/* ^O */
+    /*  16 */	ED_PREV_HISTORY,	/* ^P */
+    /*  17 */	ED_TTY_START_OUTPUT,	/* ^Q */
+    /*  18 */	ED_REDISPLAY,		/* ^R */
+    /*  19 */	ED_TTY_STOP_OUTPUT,	/* ^S */
+    /*  20 */	ED_UNASSIGNED,		/* ^T */
+    /*  21 */	VI_KILL_LINE_PREV,	/* ^U */
+    /*  22 */	ED_UNASSIGNED,		/* ^V */
+    /*  23 */	ED_DELETE_PREV_WORD,	/* ^W */
+    /*  24 */	ED_UNASSIGNED,		/* ^X */
+    /*  25 */	ED_UNASSIGNED,		/* ^Y */
+    /*  26 */	ED_UNASSIGNED,		/* ^Z */
+    /*  27 */	EM_META_NEXT,		/* ^[ */
+    /*  28 */	ED_TTY_SIGQUIT,		/* ^\ */
+    /*  29 */	ED_UNASSIGNED,		/* ^] */
+    /*  30 */	ED_UNASSIGNED,		/* ^^ */
+    /*  31 */	ED_UNASSIGNED,		/* ^_ */
+    /*  32 */	ED_NEXT_CHAR,		/* SPACE */
+    /*  33 */	ED_UNASSIGNED,		/* ! */
+    /*  34 */	ED_UNASSIGNED,		/* " */
+    /*  35 */	ED_UNASSIGNED,		/* # */
+    /*  36 */	ED_MOVE_TO_END,		/* $ */
+    /*  37 */	ED_UNASSIGNED,		/* % */
+    /*  38 */	ED_UNASSIGNED,		/* & */
+    /*  39 */	ED_UNASSIGNED,		/* ' */
+    /*  40 */	ED_UNASSIGNED,		/* ( */
+    /*  41 */	ED_UNASSIGNED,		/* ) */
+    /*  42 */	ED_UNASSIGNED,		/* * */
+    /*  43 */	ED_NEXT_HISTORY,	/* + */
+    /*  44 */	VI_REPEAT_PREV_CHAR,	/* , */	
+    /*  45 */	ED_PREV_HISTORY,	/* - */	
+    /*  46 */	ED_UNASSIGNED,		/* . */
+    /*  47 */	VI_SEARCH_PREV,		/* / */
+    /*  48 */	VI_ZERO,		/* 0 */
+    /*  49 */	ED_ARGUMENT_DIGIT,	/* 1 */
+    /*  50 */	ED_ARGUMENT_DIGIT,	/* 2 */
+    /*  51 */	ED_ARGUMENT_DIGIT,	/* 3 */
+    /*  52 */	ED_ARGUMENT_DIGIT,	/* 4 */
+    /*  53 */	ED_ARGUMENT_DIGIT,	/* 5 */
+    /*  54 */	ED_ARGUMENT_DIGIT,	/* 6 */
+    /*  55 */	ED_ARGUMENT_DIGIT,	/* 7 */
+    /*  56 */	ED_ARGUMENT_DIGIT,	/* 8 */
+    /*  57 */	ED_ARGUMENT_DIGIT,	/* 9 */
+    /*  58 */	ED_COMMAND,		/* : */
+    /*  59 */	VI_REPEAT_NEXT_CHAR,	/* ; */
+    /*  60 */	ED_UNASSIGNED,		/* < */
+    /*  61 */	ED_UNASSIGNED,		/* = */
+    /*  62 */	ED_UNASSIGNED,		/* > */
+    /*  63 */	VI_SEARCH_NEXT,		/* ? */
+    /*  64 */	ED_UNASSIGNED,		/* @ */
+    /*  65 */	VI_ADD_AT_EOL,		/* A */
+    /*  66 */	VI_PREV_SPACE_WORD,	/* B */
+    /*  67 */	VI_CHANGE_TO_EOL,	/* C */
+    /*  68 */	ED_KILL_LINE,		/* D */
+    /*  69 */	VI_TO_END_WORD,		/* E */
+    /*  70 */	VI_PREV_CHAR,		/* F */
+    /*  71 */	ED_UNASSIGNED,		/* G */
+    /*  72 */	ED_UNASSIGNED,		/* H */
+    /*  73 */	VI_INSERT_AT_BOL,	/* I */
+    /*  74 */	ED_SEARCH_NEXT_HISTORY,	/* J */
+    /*  75 */	ED_SEARCH_PREV_HISTORY,	/* K */
+    /*  76 */	ED_UNASSIGNED,		/* L */
+    /*  77 */	ED_UNASSIGNED,		/* M */
+    /*  78 */	VI_REPEAT_SEARCH_PREV,	/* N */
+    /*  79 */	ED_SEQUENCE_LEAD_IN,	/* O */
+    /*  80 */	VI_PASTE_PREV,		/* P */
+    /*  81 */	ED_UNASSIGNED,		/* Q */
+    /*  82 */	VI_REPLACE_MODE,	/* R */
+    /*  83 */	VI_SUBSTITUTE_LINE,	/* S */
+    /*  84 */	VI_TO_PREV_CHAR,	/* T */
+    /*  85 */	ED_UNASSIGNED,		/* U */
+    /*  86 */	ED_UNASSIGNED,		/* V */
+    /*  87 */	VI_NEXT_SPACE_WORD,	/* W */
+    /*  88 */	ED_DELETE_PREV_CHAR,	/* X */
+    /*  89 */	ED_UNASSIGNED,		/* Y */
+    /*  90 */	ED_UNASSIGNED,		/* Z */
+    /*  91 */	ED_SEQUENCE_LEAD_IN,	/* [ */
+    /*  92 */	ED_UNASSIGNED,		/* \ */
+    /*  93 */	ED_UNASSIGNED,		/* ] */
+    /*  94 */	ED_MOVE_TO_BEG,		/* ^ */
+    /*  95 */	ED_UNASSIGNED,		/* _ */
+    /*  96 */	ED_UNASSIGNED,		/* ` */
+    /*  97 */	VI_ADD,			/* a */
+    /*  98 */	VI_PREV_WORD,		/* b */
+    /*  99 */	VI_CHANGE_META,		/* c */
+    /* 100 */	VI_DELETE_META,		/* d */
+    /* 101 */	VI_END_WORD,		/* e */
+    /* 102 */	VI_NEXT_CHAR,		/* f */
+    /* 103 */	ED_UNASSIGNED,		/* g */
+    /* 104 */	ED_PREV_CHAR,		/* h */
+    /* 105 */	VI_INSERT,		/* i */
+    /* 106 */	ED_NEXT_HISTORY,	/* j */
+    /* 107 */	ED_PREV_HISTORY,	/* k */
+    /* 108 */	ED_NEXT_CHAR,		/* l */
+    /* 109 */	ED_UNASSIGNED,		/* m */
+    /* 110 */	VI_REPEAT_SEARCH_NEXT,	/* n */
+    /* 111 */	ED_UNASSIGNED,		/* o */
+    /* 112 */	VI_PASTE_NEXT,		/* p */
+    /* 113 */	ED_UNASSIGNED,		/* q */
+    /* 114 */	VI_REPLACE_CHAR,	/* r */
+    /* 115 */	VI_SUBSTITUTE_CHAR,	/* s */
+    /* 116 */	VI_TO_NEXT_CHAR,	/* t */
+    /* 117 */	VI_UNDO,		/* u */
+    /* 118 */	ED_UNASSIGNED,		/* v */
+    /* 119 */	VI_NEXT_WORD,		/* w */
+    /* 120 */	ED_DELETE_NEXT_CHAR,	/* x */
+    /* 121 */	ED_UNASSIGNED,		/* y */
+    /* 122 */	ED_UNASSIGNED,		/* z */
+    /* 123 */	ED_UNASSIGNED,		/* { */
+    /* 124 */	ED_UNASSIGNED,		/* | */
+    /* 125 */	ED_UNASSIGNED,		/* } */
+    /* 126 */	VI_CHANGE_CASE,		/* ~ */
+    /* 127 */	ED_DELETE_PREV_CHAR,	/* ^? */
+    /* 128 */	ED_UNASSIGNED,		/* M-^@ */
+    /* 129 */	ED_UNASSIGNED,		/* M-^A */
+    /* 130 */	ED_UNASSIGNED,		/* M-^B */
+    /* 131 */	ED_UNASSIGNED,		/* M-^C */
+    /* 132 */	ED_UNASSIGNED,		/* M-^D */
+    /* 133 */	ED_UNASSIGNED,		/* M-^E */
+    /* 134 */	ED_UNASSIGNED,		/* M-^F */
+    /* 135 */	ED_UNASSIGNED,		/* M-^G */
+    /* 136 */	ED_UNASSIGNED,		/* M-^H */
+    /* 137 */	ED_UNASSIGNED,		/* M-^I */
+    /* 138 */	ED_UNASSIGNED,		/* M-^J */
+    /* 139 */	ED_UNASSIGNED,		/* M-^K */
+    /* 140 */	ED_UNASSIGNED,		/* M-^L */
+    /* 141 */	ED_UNASSIGNED,		/* M-^M */
+    /* 142 */	ED_UNASSIGNED,		/* M-^N */
+    /* 143 */	ED_UNASSIGNED,		/* M-^O */
+    /* 144 */	ED_UNASSIGNED,		/* M-^P */
+    /* 145 */	ED_UNASSIGNED,		/* M-^Q */
+    /* 146 */	ED_UNASSIGNED,		/* M-^R */
+    /* 147 */	ED_UNASSIGNED,		/* M-^S */
+    /* 148 */	ED_UNASSIGNED,		/* M-^T */
+    /* 149 */	ED_UNASSIGNED,		/* M-^U */
+    /* 150 */	ED_UNASSIGNED,		/* M-^V */
+    /* 151 */	ED_UNASSIGNED,		/* M-^W */
+    /* 152 */	ED_UNASSIGNED,		/* M-^X */
+    /* 153 */	ED_UNASSIGNED,		/* M-^Y */
+    /* 154 */	ED_UNASSIGNED,		/* M-^Z */
+    /* 155 */	ED_UNASSIGNED,		/* M-^[ */
+    /* 156 */	ED_UNASSIGNED,		/* M-^\ */
+    /* 157 */	ED_UNASSIGNED,		/* M-^] */
+    /* 158 */	ED_UNASSIGNED,		/* M-^^ */
+    /* 159 */	ED_UNASSIGNED,		/* M-^_ */
+    /* 160 */	ED_UNASSIGNED,		/* M-SPACE */
+    /* 161 */	ED_UNASSIGNED,		/* M-! */
+    /* 162 */	ED_UNASSIGNED,		/* M-" */
+    /* 163 */	ED_UNASSIGNED,		/* M-# */
+    /* 164 */	ED_UNASSIGNED,		/* M-$ */
+    /* 165 */	ED_UNASSIGNED,		/* M-% */
+    /* 166 */	ED_UNASSIGNED,		/* M-& */
+    /* 167 */	ED_UNASSIGNED,		/* M-' */
+    /* 168 */	ED_UNASSIGNED,		/* M-( */
+    /* 169 */	ED_UNASSIGNED,		/* M-) */
+    /* 170 */	ED_UNASSIGNED,		/* M-* */
+    /* 171 */	ED_UNASSIGNED,		/* M-+ */
+    /* 172 */	ED_UNASSIGNED,		/* M-, */
+    /* 173 */	ED_UNASSIGNED,		/* M-- */
+    /* 174 */	ED_UNASSIGNED,		/* M-. */
+    /* 175 */	ED_UNASSIGNED,		/* M-/ */
+    /* 176 */	ED_UNASSIGNED,		/* M-0 */
+    /* 177 */	ED_UNASSIGNED,		/* M-1 */
+    /* 178 */	ED_UNASSIGNED,		/* M-2 */
+    /* 179 */	ED_UNASSIGNED,		/* M-3 */
+    /* 180 */	ED_UNASSIGNED,		/* M-4 */
+    /* 181 */	ED_UNASSIGNED,		/* M-5 */
+    /* 182 */	ED_UNASSIGNED,		/* M-6 */
+    /* 183 */	ED_UNASSIGNED,		/* M-7 */
+    /* 184 */	ED_UNASSIGNED,		/* M-8 */
+    /* 185 */	ED_UNASSIGNED,		/* M-9 */
+    /* 186 */	ED_UNASSIGNED,		/* M-: */
+    /* 187 */	ED_UNASSIGNED,		/* M-; */
+    /* 188 */	ED_UNASSIGNED,		/* M-< */
+    /* 189 */	ED_UNASSIGNED,		/* M-= */
+    /* 190 */	ED_UNASSIGNED,		/* M-> */
+    /* 191 */	ED_UNASSIGNED,		/* M-? */
+    /* 192 */	ED_UNASSIGNED,		/* M-@ */
+    /* 193 */	ED_UNASSIGNED,		/* M-A */
+    /* 194 */	ED_UNASSIGNED,		/* M-B */
+    /* 195 */	ED_UNASSIGNED,		/* M-C */
+    /* 196 */	ED_UNASSIGNED,		/* M-D */
+    /* 197 */	ED_UNASSIGNED,		/* M-E */
+    /* 198 */	ED_UNASSIGNED,		/* M-F */
+    /* 199 */	ED_UNASSIGNED,		/* M-G */
+    /* 200 */	ED_UNASSIGNED,		/* M-H */
+    /* 201 */	ED_UNASSIGNED,		/* M-I */
+    /* 202 */	ED_UNASSIGNED,		/* M-J */
+    /* 203 */	ED_UNASSIGNED,		/* M-K */
+    /* 204 */	ED_UNASSIGNED,		/* M-L */
+    /* 205 */	ED_UNASSIGNED,		/* M-M */
+    /* 206 */	ED_UNASSIGNED,		/* M-N */
+    /* 207 */	ED_SEQUENCE_LEAD_IN,	/* M-O */
+    /* 208 */	ED_UNASSIGNED,		/* M-P */
+    /* 209 */	ED_UNASSIGNED,		/* M-Q */
+    /* 210 */	ED_UNASSIGNED,		/* M-R */
+    /* 211 */	ED_UNASSIGNED,		/* M-S */
+    /* 212 */	ED_UNASSIGNED,		/* M-T */
+    /* 213 */	ED_UNASSIGNED,		/* M-U */
+    /* 214 */	ED_UNASSIGNED,		/* M-V */
+    /* 215 */	ED_UNASSIGNED,		/* M-W */
+    /* 216 */	ED_UNASSIGNED,		/* M-X */
+    /* 217 */	ED_UNASSIGNED,		/* M-Y */
+    /* 218 */	ED_UNASSIGNED,		/* M-Z */
+    /* 219 */	ED_SEQUENCE_LEAD_IN,	/* M-[ */
+    /* 220 */	ED_UNASSIGNED,		/* M-\ */
+    /* 221 */	ED_UNASSIGNED,		/* M-] */
+    /* 222 */	ED_UNASSIGNED,		/* M-^ */
+    /* 223 */	ED_UNASSIGNED,		/* M-_ */
+    /* 224 */	ED_UNASSIGNED,		/* M-` */
+    /* 225 */	ED_UNASSIGNED,		/* M-a */
+    /* 226 */	ED_UNASSIGNED,		/* M-b */
+    /* 227 */	ED_UNASSIGNED,		/* M-c */
+    /* 228 */	ED_UNASSIGNED,		/* M-d */
+    /* 229 */	ED_UNASSIGNED,		/* M-e */
+    /* 230 */	ED_UNASSIGNED,		/* M-f */
+    /* 231 */	ED_UNASSIGNED,		/* M-g */
+    /* 232 */	ED_UNASSIGNED,		/* M-h */
+    /* 233 */	ED_UNASSIGNED,		/* M-i */
+    /* 234 */	ED_UNASSIGNED,		/* M-j */
+    /* 235 */	ED_UNASSIGNED,		/* M-k */
+    /* 236 */	ED_UNASSIGNED,		/* M-l */
+    /* 237 */	ED_UNASSIGNED,		/* M-m */
+    /* 238 */	ED_UNASSIGNED,		/* M-n */
+    /* 239 */	ED_UNASSIGNED,		/* M-o */
+    /* 240 */	ED_UNASSIGNED,		/* M-p */
+    /* 241 */	ED_UNASSIGNED,		/* M-q */
+    /* 242 */	ED_UNASSIGNED,		/* M-r */
+    /* 243 */	ED_UNASSIGNED,		/* M-s */
+    /* 244 */	ED_UNASSIGNED,		/* M-t */
+    /* 245 */	ED_UNASSIGNED,		/* M-u */
+    /* 246 */	ED_UNASSIGNED,		/* M-v */
+    /* 247 */	ED_UNASSIGNED,		/* M-w */
+    /* 248 */	ED_UNASSIGNED,		/* M-x */
+    /* 249 */	ED_UNASSIGNED,		/* M-y */
+    /* 250 */	ED_UNASSIGNED,		/* M-z */
+    /* 251 */	ED_UNASSIGNED,		/* M-{ */
+    /* 252 */	ED_UNASSIGNED,		/* M-| */
+    /* 253 */	ED_UNASSIGNED,		/* M-} */
+    /* 254 */	ED_UNASSIGNED,		/* M-~ */
+    /* 255 */	ED_UNASSIGNED		/* M-^? */
+};
+
+
+/* map_init():
+ *	Initialize and allocate the maps
+ */
+protected int
+map_init(el)
+    EditLine *el;
+{
+    
+    /*
+     * Make sure those are correct before starting.
+     */
+#ifdef MAP_DEBUG
+    if (sizeof(el_map_emacs)      != N_KEYS * sizeof(el_action_t))
+	abort();
+    if (sizeof(el_map_vi_command) != N_KEYS * sizeof(el_action_t))
+	abort();
+    if (sizeof(el_map_vi_insert)  != N_KEYS * sizeof(el_action_t))
+	abort();
+#endif
+
+    el->el_map.alt   = (el_action_t *) el_malloc(sizeof(el_action_t) * N_KEYS);
+    el->el_map.key   = (el_action_t *) el_malloc(sizeof(el_action_t) * N_KEYS);
+    el->el_map.emacs = el_map_emacs;
+    el->el_map.vic   = el_map_vi_command;
+    el->el_map.vii   = el_map_vi_insert;
+    el->el_map.help  = (el_bindings_t *) el_malloc(sizeof(el_bindings_t) *
+						   EL_NUM_FCNS);
+    (void) memcpy(el->el_map.help, help__get(), 
+		  sizeof(el_bindings_t) * EL_NUM_FCNS);
+    el->el_map.func  = (el_func_t *) el_malloc(sizeof(el_func_t) * EL_NUM_FCNS);
+    memcpy(el->el_map.func, func__get(), sizeof(el_func_t) * EL_NUM_FCNS);
+    el->el_map.nfunc = EL_NUM_FCNS;
+
+#ifdef VIDEFAULT
+    map_init_vi(el);
+#else
+    map_init_emacs(el);
+#endif /* VIDEFAULT */
+    return 0;
+}
+
+
+/* map_end():
+ *	Free the space taken by the editor maps
+ */
+protected void
+map_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_map.alt);
+    el->el_map.alt   = NULL;
+    el_free((ptr_t) el->el_map.key);
+    el->el_map.key   = NULL;
+    el->el_map.emacs = NULL;
+    el->el_map.vic   = NULL;
+    el->el_map.vii   = NULL;
+    el_free((ptr_t) el->el_map.help);
+    el->el_map.help  = NULL;
+    el_free((ptr_t) el->el_map.func);
+    el->el_map.func  = NULL;
+}
+
+
+/* map_init_nls():
+ *	Find all the printable keys and bind them to self insert
+ */
+private void
+map_init_nls(el)
+    EditLine *el;
+{
+    int i;
+    el_action_t *map = el->el_map.key;
+
+    for (i = 0200; i <= 0377; i++) 
+	if (isprint(i)) 
+	    map[i] = ED_INSERT;
+}
+
+
+/* map_init_meta():
+ *	Bind all the meta keys to the appropriate ESC-<key> sequence
+ */
+private void
+map_init_meta(el)
+    EditLine *el;
+{
+    char    buf[3];
+    register int i;
+    el_action_t *map = el->el_map.key;
+    el_action_t *alt = el->el_map.alt;
+
+    for (i = 0; i <= 0377 && map[i] != EM_META_NEXT; i++)
+	continue;
+
+    if (i > 0377) {
+	for (i = 0; i <= 0377 && alt[i] != EM_META_NEXT; i++)
+	    continue;
+	if (i > 0377) {
+	    i = 033;
+	    if (el->el_map.type == MAP_VI)
+		map = alt;
+	}
+	else 
+	    map = alt;
+    }
+    buf[0] = (char) i;
+    buf[2] = 0;
+    for (i = 0200; i <= 0377; i++) 
+	switch (map[i]) {
+	case ED_INSERT:
+	case ED_UNASSIGNED:
+	case ED_SEQUENCE_LEAD_IN:
+	    break;
+	default:
+	    buf[1] = i & 0177;
+	    key_add(el, buf, key_map_cmd(el, (int) map[i]), XK_CMD);
+	    break;
+	}
+    map[buf[0]] = ED_SEQUENCE_LEAD_IN;
+}
+
+
+/* map_init_vi():
+ *	Initialize the vi bindings
+ */
+protected void
+map_init_vi(el)
+    EditLine *el;
+{
+    register int i;
+    el_action_t *key = el->el_map.key;
+    el_action_t *alt = el->el_map.alt;
+    el_action_t *vii = el->el_map.vii;
+    el_action_t *vic = el->el_map.vic;
+
+    el->el_map.type = MAP_VI;
+    el->el_map.current = el->el_map.key;
+
+    key_reset(el);
+
+    for (i = 0; i < N_KEYS; i++) {
+	key[i] = vii[i];
+	alt[i] = vic[i];
+    }
+
+    map_init_meta(el);
+#ifdef notyet
+    if (0 /* XXX: USER has set LC_CTYPE */)
+	map_init_nls(el);
+#endif
+
+    tty_bind_char(el, 1);
+    term_bind_arrow(el);
+}
+
+
+/* map_init_emacs():
+ *	Initialize the emacs bindings
+ */
+protected void
+map_init_emacs(el)
+    EditLine *el;
+{
+    int i;
+    char    buf[3];
+    el_action_t *key   = el->el_map.key;
+    el_action_t *alt   = el->el_map.alt;
+    el_action_t *emacs = el->el_map.emacs;
+
+    el->el_map.type = MAP_EMACS;
+    el->el_map.current = el->el_map.key;
+    key_reset(el);
+
+    for (i = 0; i < N_KEYS; i++) {
+	key[i] = emacs[i];
+	alt[i] = ED_UNASSIGNED;
+    }
+
+    map_init_meta(el);
+#ifdef notyet
+    if (0 /* XXX: USER has set LC_CTYPE */)
+	map_init_nls(el);
+#endif
+    map_init_nls(el);
+
+    buf[0] = CONTROL('X');
+    buf[1] = CONTROL('X');
+    buf[2] = 0;
+    key_add(el, buf, key_map_cmd(el, EM_EXCHANGE_MARK), XK_CMD);
+    
+    tty_bind_char(el, 1);
+    term_bind_arrow(el);
+}
+
+
+/* map_set_editor():
+ *	Set the editor 
+ */
+protected int
+map_set_editor(el, editor)
+    EditLine *el;
+    char *editor;
+{
+    if (strcmp(editor, "emacs") == 0) {
+	map_init_emacs(el);
+	return 0;
+    }
+    if (strcmp(editor, "vi") == 0) {
+	map_init_vi(el);
+	return 0;
+    }
+    return -1;
+}
+
+
+/* map_print_key():
+ *	Print the function description for 1 key
+ */
+private void
+map_print_key(el, map, in)
+    EditLine *el;
+    el_action_t *map;
+    char *in;
+{
+    char outbuf[EL_BUFSIZ];
+    el_bindings_t *bp;
+
+    if (in[0] == '\0' || in[1] == '\0') {
+	(void) key__decode_str(in, outbuf, "");
+	for (bp = el->el_map.help; bp->name != NULL; bp++)
+	    if (bp->func == map[(unsigned char) *in]) {
+		(void) fprintf(el->el_outfile, 
+			       "%s\t->\t%s\n", outbuf, bp->name);
+		return;
+	    }
+    }
+    else 
+	key_print(el, in);
+}
+
+
+/* map_print_some_keys():
+ *	Print keys from first to last
+ */
+private void
+map_print_some_keys(el, map, first, last)
+    EditLine *el;
+    el_action_t *map;
+    int     first, last;
+{
+    el_bindings_t *bp;
+    char    firstbuf[2], lastbuf[2];
+    char unparsbuf[EL_BUFSIZ], extrabuf[EL_BUFSIZ];
+
+    firstbuf[0] = first;
+    firstbuf[1] = 0;
+    lastbuf[0] = last;
+    lastbuf[1] = 0;
+    if (map[first] == ED_UNASSIGNED) {
+	if (first == last)
+	    (void) fprintf(el->el_outfile, "%-15s->  is undefined\n",
+		    key__decode_str(firstbuf, unparsbuf, STRQQ));
+	return;
+    }
+
+    for (bp = el->el_map.help; bp->name != NULL; bp++) {
+	if (bp->func == map[first]) {
+	    if (first == last) {
+		(void) fprintf(el->el_outfile, "%-15s->  %s\n",
+			       key__decode_str(firstbuf, unparsbuf, STRQQ), 
+			       bp->name);
+	    }
+	    else {
+		(void) fprintf(el->el_outfile, "%-4s to %-7s->  %s\n",
+			       key__decode_str(firstbuf, unparsbuf, STRQQ),
+			       key__decode_str(lastbuf, extrabuf, STRQQ), 
+			       bp->name);
+	    }
+	    return;
+	}
+    }
+#ifdef MAP_DEBUG
+    if (map == el->el_map.key) {
+	(void) fprintf(el->el_outfile, "BUG!!! %s isn't bound to anything.\n",
+		       key__decode_str(firstbuf, unparsbuf, STRQQ));
+	(void) fprintf(el->el_outfile, "el->el_map.key[%d] == %d\n", 
+		       first, el->el_map.key[first]);
+    }
+    else {
+	(void) fprintf(el->el_outfile, "BUG!!! %s isn't bound to anything.\n",
+		       key__decode_str(firstbuf, unparsbuf, STRQQ));
+	(void) fprintf(el->el_outfile, "el->el_map.alt[%d] == %d\n", 
+		       first, el->el_map.alt[first]);
+    }
+#endif
+    abort();
+}
+
+
+/* map_print_all_keys():
+ *	Print the function description for all keys.
+ */
+private void
+map_print_all_keys(el)
+    EditLine *el;
+{
+    int     prev, i;
+
+    (void) fprintf(el->el_outfile, "Standard key bindings\n");
+    prev = 0;
+    for (i = 0; i < N_KEYS; i++) {
+	if (el->el_map.key[prev] == el->el_map.key[i])
+	    continue;
+	map_print_some_keys(el, el->el_map.key, prev, i - 1);
+	prev = i;
+    }
+    map_print_some_keys(el, el->el_map.key, prev, i - 1);
+
+    (void) fprintf(el->el_outfile, "Alternative key bindings\n");
+    prev = 0;
+    for (i = 0; i < N_KEYS; i++) {
+	if (el->el_map.alt[prev] == el->el_map.alt[i])
+	    continue;
+	map_print_some_keys(el, el->el_map.alt, prev, i - 1);
+	prev = i;
+    }
+    map_print_some_keys(el, el->el_map.alt, prev, i - 1);
+
+    (void) fprintf(el->el_outfile, "Multi-character bindings\n");
+    key_print(el, "");
+    (void) fprintf(el->el_outfile, "Arrow key bindings\n");
+    term_print_arrow(el, "");
+}
+
+
+/* map_bind():
+ *	Add/remove/change bindings
+ */
+protected int
+map_bind(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    el_action_t *map;
+    int     ntype, remove;
+    char   *p;
+    char    inbuf[EL_BUFSIZ];
+    char    outbuf[EL_BUFSIZ];
+    char   *in = NULL;
+    char   *out = NULL;
+    el_bindings_t *bp;
+    int     cmd;
+    int	    key;
+
+    if (argv == NULL)
+	return -1;
+
+    map = el->el_map.key;
+    ntype = XK_CMD;
+    key = remove = 0;
+    for (argc = 1; (p = argv[argc]) != NULL; argc++)
+	if (p[0] == '-')
+	    switch (p[1]) {
+	    case 'a':
+		map = el->el_map.alt;
+		break;
+
+	    case 's':
+		ntype = XK_STR;
+		break;
+#ifdef notyet
+	    case 'c':
+		ntype = XK_EXE;
+		break;
+#endif
+	    case 'k':
+		key = 1;
+		break;
+
+	    case 'r':
+		remove = 1;
+		break;
+
+	    case 'v':
+		map_init_vi(el);
+		return 0;
+
+	    case 'e':
+		map_init_emacs(el);
+		return 0;
+
+	    case 'l':
+		for (bp = el->el_map.help; bp->name != NULL; bp++) 
+		    (void) fprintf(el->el_outfile, "%s\n\t%s\n", 
+				   bp->name, bp->description);
+		return 0;
+	    default:
+		(void) fprintf(el->el_errfile, "%s: Invalid switch `%c'.\n",
+			       argv[0], p[1]);
+	    }
+	else
+	    break;
+
+    if (argv[argc] == NULL) {
+	map_print_all_keys(el);
+	return 0;
+    }
+
+    if (key)
+	in = argv[argc++];
+    else
+	if ((in = parse__string(inbuf, argv[argc++])) == NULL) {
+	    (void) fprintf(el->el_errfile, "%s: Invalid \\ or ^ in instring.\n",
+			   argv[0]);
+	    return -1;
+	}
+
+    if (remove) {
+	if (key) {
+	    (void) term_clear_arrow(el, in);
+	    return -1;
+	}
+	if (in[1]) 
+	    (void) key_delete(el, in);
+	else if (map[(unsigned char) *in] == ED_SEQUENCE_LEAD_IN) 
+	    (void) key_delete(el, in);
+	else 
+	    map[(unsigned char) *in] = ED_UNASSIGNED;
+	return 0;
+    }
+
+    if (argv[argc] == NULL) {
+	if (key)
+	    term_print_arrow(el, in);
+	else
+	    map_print_key(el, map, in);
+	return 0;
+    }
+
+#ifdef notyet
+    if (argv[argc + 1] != NULL) {
+	bindkey_usage();
+	return -1;
+    }
+#endif
+
+    switch (ntype) {
+    case XK_STR:
+    case XK_EXE:
+	if ((out = parse__string(outbuf, argv[argc])) == NULL) {
+	    (void) fprintf(el->el_errfile, 
+			   "%s: Invalid \\ or ^ in outstring.\n", argv[0]);
+	    return -1;
+	}
+	if (key)
+	    term_set_arrow(el, in, key_map_str(el, out), ntype);
+	else
+	    key_add(el, in, key_map_str(el, out), ntype);
+	map[(unsigned char) *in] = ED_SEQUENCE_LEAD_IN;
+	break;
+
+    case XK_CMD:
+	if ((cmd = parse_cmd(el, argv[argc])) == -1) {
+	    (void) fprintf(el->el_errfile, 
+			   "%s: Invalid command `%s'.\n", argv[0], argv[argc]);
+	    return -1;
+	}
+	if (key)
+	    term_set_arrow(el, in, key_map_str(el, out), ntype);
+	else {
+	    if (in[1]) {
+		key_add(el, in, key_map_cmd(el, cmd), ntype);
+		map[(unsigned char) *in] = ED_SEQUENCE_LEAD_IN;
+	    }
+	    else  {
+		key_clear(el, map, in);
+		map[(unsigned char) *in] = cmd;
+	    }
+	}
+	break;
+
+    default:
+	abort();
+	break;
+    }
+    return 0;
+}
+
+
+/* map_addfunc():
+ *	add a user defined function
+ */
+protected int
+map_addfunc(el, name, help, func)
+    EditLine *el;
+    const char *name;
+    const char *help;
+    el_func_t func;
+{
+    int nf = el->el_map.nfunc + 2;
+    if (name == NULL || help == NULL || func == NULL)
+	return -1;
+
+    el->el_map.func = (el_func_t *) 
+		el_realloc(el->el_map.func, nf * sizeof(el_func_t));
+    el->el_map.help = (el_bindings_t *)
+		el_realloc(el->el_map.help, nf * sizeof(el_bindings_t));
+
+    nf = el->el_map.nfunc;
+    el->el_map.func[nf] = func;
+
+    el->el_map.help[nf].name = name;
+    el->el_map.help[nf].func = nf;
+    el->el_map.help[nf].description = help;
+    el->el_map.help[++nf].name = NULL;
+    el->el_map.nfunc++;
+
+    return 0;
+}
diff --git a/lib/libedit/map.h b/lib/libedit/map.h
new file mode 100644
index 00000000000..71c93b4a21e
--- /dev/null
+++ b/lib/libedit/map.h
@@ -0,0 +1,77 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)map.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.map.h:	Editor maps
+ */
+#ifndef _h_el_map
+#define _h_el_map
+
+typedef struct el_bindings_t {	/* for the "bind" shell command */
+    const char   *name;		/* function name for bind command */
+    int     func;		/* function numeric value */
+    const char   *description;	/* description of function */
+} el_bindings_t;
+
+
+typedef struct el_map_t {
+    el_action_t   *alt;		/* The current alternate key map	*/
+    el_action_t   *key;		/* The current normal key map		*/
+    el_action_t   *current;	/* The keymap we are using		*/
+    el_action_t   *emacs;	/* The default emacs key map		*/
+    el_action_t   *vic;		/* The vi command mode key map		*/
+    el_action_t   *vii;		/* The vi insert mode key map		*/
+    int		   type;	/* Emacs or vi				*/
+    el_bindings_t *help;	/* The help for the editor functions	*/
+    el_func_t     *func;	/* List of available functions		*/
+    int  	   nfunc;	/* The number of functions/help items	*/
+} el_map_t;
+
+#define MAP_EMACS	0
+#define MAP_VI		1
+
+protected int	map_bind		__P((EditLine *, int, char **));
+protected int	map_init		__P((EditLine *));
+protected void	map_end			__P((EditLine *));
+protected void	map_init_vi		__P((EditLine *));
+protected void	map_init_emacs		__P((EditLine *));
+protected int	map_set_editor		__P((EditLine *, char *));
+protected int	map_addfunc		__P((EditLine *, const char *, 
+					     const char *, el_func_t));
+
+#endif /* _h_el_map */
diff --git a/lib/libedit/parse.c b/lib/libedit/parse.c
new file mode 100644
index 00000000000..2fe746f370b
--- /dev/null
+++ b/lib/libedit/parse.c
@@ -0,0 +1,247 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)parse.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * parse.c: parse an editline extended command
+ *
+ * commands are:
+ *
+ *	bind
+ *	echotc
+ *	settc
+ *	gettc
+ */
+#include "sys.h"
+#include "el.h"
+#include "tokenizer.h"
+
+private struct {
+    char *name;
+    int (*func) __P((EditLine *, int, char **));
+} cmds[] = {
+    {	"bind",		map_bind 	},
+    {	"echotc",	term_echotc 	},
+    {	"history",	hist_list	},
+    {	"telltc",	term_telltc 	},
+    {	"settc",	term_settc	},
+    {	"setty",	tty_stty	},
+    {	NULL,		NULL		}
+};
+
+
+/* parse_line():
+ *	Parse a line and dispatch it
+ */
+protected int
+parse_line(el, line)
+    EditLine *el;
+    const char *line;
+{
+    char **argv;
+    int argc;
+    Tokenizer *tok;
+
+    tok = tok_init(NULL);
+    tok_line(tok, line, &argc, &argv);
+    argc = el_parse(el, argc, argv);
+    tok_end(tok);
+    return argc;
+}
+
+/* el_parse():
+ *	Command dispatcher
+ */
+public int
+el_parse(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char *argv[];
+{
+    char *ptr;
+    int i;
+
+    for (ptr = argv[0]; *ptr && *ptr != ':'; ptr++)
+	continue;
+
+    if (*ptr == ':') {
+	*ptr = '\0';
+	if (el_match(el->el_prog, ptr))
+	    return 0;
+    }
+    else
+	ptr = argv[0];
+
+    for (i = 0; cmds[i].name != NULL; i++)
+	if (strcmp(cmds[i].name, ptr) == 0) {
+	    i = (*cmds[i].func)(el, argc, argv);
+	    return -i;
+	}
+
+    return -1;
+}
+
+
+/* parse__escape():
+ *	Parse a string of the form ^<char> \<odigit> \<char> and return
+ *	the appropriate character or -1 if the escape is not valid
+ */
+protected int
+parse__escape(ptr)
+    const char  ** const ptr;
+{
+    const char   *p;
+    int   c;
+
+    p = *ptr;
+
+    if (p[1] == 0) 
+	return -1;
+
+    if (*p == '\\') {
+	p++;
+	switch (*p) {
+	case 'a':
+	    c = '\007';		/* Bell */
+	    break;
+	case 'b':
+	    c = '\010';		/* Backspace */
+	    break;
+	case 't':
+	    c = '\011';		/* Horizontal Tab */
+	    break;
+	case 'n':
+	    c = '\012';		/* New Line */
+	    break;
+	case 'v':
+	    c = '\013';		/* Vertical Tab */
+	    break;
+	case 'f':
+	    c = '\014';		/* Form Feed */
+	    break;
+	case 'r':
+	    c = '\015';		/* Carriage Return */
+	    break;
+	case 'e':
+	    c = '\033';		/* Escape */
+	    break;
+	case '0':
+	case '1':
+	case '2':
+	case '3':
+	case '4':
+	case '5':
+	case '6':
+	case '7':
+	    {
+		int cnt, ch;
+
+		for (cnt = 0, c = 0; cnt < 3; cnt++) {
+		    ch = *p++;
+		    if (ch < '0' || ch > '7') {
+			p--;
+			break;
+		    }
+		    c = (c << 3) | (ch - '0');
+		}
+		if ((c & 0xffffff00) != 0) 
+		    return -1;
+		--p;
+	    }
+	    break;
+	default:
+	    c = *p;
+	    break;
+	}
+    }
+    else if (*p == '^' && isalpha((unsigned char) *p)) {
+	p++;
+	c = (*p == '?') ? '\177' : (*p & 0237);
+    }
+    else
+	c = *p;
+    *ptr = ++p;
+    return c;
+}
+
+/* parse__string():
+ *	Parse the escapes from in and put the raw string out
+ */
+protected char *
+parse__string(out, in)
+    char *out;
+    const char *in;
+{
+    char *rv = out;
+    int n;
+    for (;;)
+	switch (*in) {
+	case '\0':
+	    *out = '\0';
+	    return rv;
+
+	case '\\':
+	case '^':
+	    if ((n = parse__escape(&in)) == -1)
+		return NULL;
+	    *out++ = n;
+	    break;
+
+	default:
+	    *out++ = *in++;
+	    break;
+	}
+}
+
+/* parse_cmd():
+ *	Return the command number for the command string given
+ *	or -1 if one is not found
+ */
+protected int
+parse_cmd(el, cmd)
+    EditLine *el;
+    const char *cmd;
+{
+    el_bindings_t *b;
+
+    for (b = el->el_map.help; b->name != NULL; b++)
+	if (strcmp(b->name, cmd) == 0)
+	    return b->func;
+    return -1;
+}
diff --git a/lib/libedit/parse.h b/lib/libedit/parse.h
new file mode 100644
index 00000000000..263076b30a5
--- /dev/null
+++ b/lib/libedit/parse.h
@@ -0,0 +1,50 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)parse.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.parse.h: Parser functions
+ */
+#ifndef _h_el_parse
+#define _h_el_parse
+
+protected int		 parse_line	__P((EditLine *, const char *)); 
+protected int		 parse__escape	__P((const char ** const));
+protected char *	 parse__string	__P((char *, const char *));
+protected int		 parse_cmd	__P((EditLine *, const char *));
+
+#endif /* _h_el_parse */
diff --git a/lib/libedit/prompt.c b/lib/libedit/prompt.c
new file mode 100644
index 00000000000..cea7ad7d133
--- /dev/null
+++ b/lib/libedit/prompt.c
@@ -0,0 +1,123 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)prompt.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * prompt.c: Prompt printing functions
+ */
+#include "sys.h"
+#include <stdio.h>
+#include "el.h"
+
+private char *prompt_default	__P((EditLine *));
+
+/* prompt_default():
+ *	Just a default prompt, in case the user did not provide one
+ */
+private char *
+/*ARGSUSED*/
+prompt_default(el)
+    EditLine *el;
+{
+    static char a[3] = { '?', ' ', '\0' };
+    return a;
+}
+
+
+/* prompt_print():
+ *	Print the prompt and update the prompt position.
+ *	We use an array of integers in case we want to pass
+ * 	literal escape sequences in the prompt and we want a
+ *	bit to flag them
+ */
+protected void
+prompt_print(el)
+    EditLine *el;
+{
+    char *p = (*el->el_prompt.p_func)(el);
+    while (*p)
+	re_putc(el, *p++);
+
+    el->el_prompt.p_pos.v = el->el_refresh.r_cursor.v;
+    el->el_prompt.p_pos.h = el->el_refresh.r_cursor.h;
+
+} /* end prompt_print */
+
+
+/* prompt_init():
+ *	Initialize the prompt stuff
+ */
+protected int 
+prompt_init(el)
+    EditLine *el;
+{
+    el->el_prompt.p_func = prompt_default;
+    el->el_prompt.p_pos.v = 0;
+    el->el_prompt.p_pos.h = 0;
+    return 0;
+} /* end prompt_init */
+
+
+/* prompt_end():
+ *	Clean up the prompt stuff
+ */
+protected void
+/*ARGSUSED*/ 
+prompt_end(el)
+    EditLine *el;
+{
+} /* end prompt_end */
+
+
+/* prompt_set():
+ *	Install a prompt printing function
+ */
+protected int 
+prompt_set(el, prf)
+    EditLine *el;
+    el_pfunc_t prf;
+{
+    if (prf == NULL)
+	el->el_prompt.p_func = prompt_default;
+    else
+	el->el_prompt.p_func = prf;
+    el->el_prompt.p_pos.v = 0;
+    el->el_prompt.p_pos.h = 0;
+    return 0;
+} /* end prompt_set */
diff --git a/lib/libedit/prompt.h b/lib/libedit/prompt.h
new file mode 100644
index 00000000000..a624fc053e2
--- /dev/null
+++ b/lib/libedit/prompt.h
@@ -0,0 +1,59 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)prompt.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.prompt.h: Prompt printing stuff
+ */
+#ifndef _h_el_prompt
+#define _h_el_prompt
+
+#include "histedit.h"
+
+typedef char * (*el_pfunc_t) __P((EditLine*));
+
+typedef struct el_prompt_t {
+    el_pfunc_t p_func;		/* Function to return the prompt	*/
+    coord_t    p_pos;		/* position in the line after prompt	*/
+} el_prompt_t;
+
+protected void prompt_print	__P((EditLine *));
+protected int  prompt_set	__P((EditLine *, el_pfunc_t));
+protected int  prompt_init	__P((EditLine *));
+protected void prompt_end	__P((EditLine *));
+
+#endif /* _h_el_prompt */
diff --git a/lib/libedit/read.c b/lib/libedit/read.c
new file mode 100644
index 00000000000..ccfc88b8f59
--- /dev/null
+++ b/lib/libedit/read.c
@@ -0,0 +1,437 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)read.c	8.1 (Berkeley) 6/4/93";
+
+#endif /* not lint && not SCCSID */
+/*
+ * read.c: Clean this junk up! This is horrible code.
+ *	   Terminal read functions
+ */
+#include "sys.h"
+#include <sys/errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+extern int errno;
+#include "el.h"
+
+#define OKCMD -1
+
+private int read__fixio		__P((int, int));
+private int read_preread	__P((EditLine *));
+private int read_getcmd		__P((EditLine *, el_action_t *, char *));
+
+#ifdef DEBUG_EDIT
+private void
+read_debug(el)
+    EditLine *el;
+{
+
+    if (el->el_line.cursor > el->el_line.lastchar)
+	(void) fprintf(el->el_errfile, "cursor > lastchar\r\n");
+    if (el->el_line.cursor < el->el_line.buffer)
+	(void) fprintf(el->el_errfile, "cursor < buffer\r\n");
+    if (el->el_line.cursor > el->el_line.limit)
+	(void) fprintf(el->el_errfile, "cursor > limit\r\n");
+    if (el->el_line.lastchar > el->el_line.limit)
+	(void) fprintf(el->el_errfile, "lastchar > limit\r\n");
+    if (el->el_line.limit != &el->el_line.buffer[EL_BUFSIZ - 2])
+	(void) fprintf(el->el_errfile, "limit != &buffer[EL_BUFSIZ-2]\r\n");
+}
+#endif /* DEBUG_EDIT */
+
+/* read__fixio():
+ *	Try to recover from a read error
+ */
+private int
+read__fixio(fd, e)
+    int fd, e;
+{
+    switch (e) {
+    case -1:	/* Make sure that the code is reachable */
+
+#ifdef EWOULDBLOCK
+    case EWOULDBLOCK:
+# define TRY_AGAIN
+#endif /* EWOULDBLOCK */
+
+#if defined(POSIX) && defined(EAGAIN)
+# if defined(EWOULDBLOCK) && EWOULDBLOCK != EAGAIN
+    case EAGAIN:
+#  define TRY_AGAIN
+# endif /* EWOULDBLOCK && EWOULDBLOCK != EAGAIN */
+#endif /* POSIX && EAGAIN */
+
+	e = 0;
+#ifdef TRY_AGAIN
+# if defined(F_SETFL) && defined(O_NDELAY)
+	if ((e = fcntl(fd, F_GETFL, 0)) == -1)
+	    return -1;
+
+	if (fcntl(fd, F_SETFL, e & ~O_NDELAY) == -1)
+	    return -1;
+	else 
+	    e = 1;
+# endif /* F_SETFL && O_NDELAY */
+
+# ifdef FIONBIO
+	if (ioctl(fd, FIONBIO, (ioctl_t) &e) == -1)
+	    return -1;
+	else
+	    e = 1;
+# endif	/* FIONBIO */
+
+#endif /* TRY_AGAIN */
+	return e ? 0 : -1;
+
+    case EINTR:
+	return 0;
+
+    default:
+	return -1;
+    }
+}
+
+
+/* read_preread():
+ *	Try to read the stuff in the input queue;
+ */
+private int
+read_preread(el)
+    EditLine *el;
+{
+    int    chrs = 0;
+
+    if (el->el_chared.c_macro.nline) {
+	el_free((ptr_t) el->el_chared.c_macro.nline);
+	el->el_chared.c_macro.nline = NULL;
+    }
+
+    if (el->el_tty.t_mode == ED_IO)
+	return 0;
+
+#ifdef FIONREAD
+    (void) ioctl(el->el_infd, FIONREAD, (ioctl_t) &chrs);
+    if (chrs > 0) {
+	char    buf[EL_BUFSIZ];
+
+	chrs = read(el->el_infd, buf, (size_t) MIN(chrs, EL_BUFSIZ - 1));
+	if (chrs > 0) {
+	    buf[chrs] = '\0';
+	    el->el_chared.c_macro.nline = strdup(buf);
+	    el_push(el->el_chared.c_macro.nline);
+	}
+    }
+#endif  /* FIONREAD */
+
+    return chrs > 0;
+}
+
+
+/* el_push():
+ *	Push a macro
+ */
+public void
+el_push(el, str)
+    EditLine *el;
+    const char   *str;
+{
+    c_macro_t *ma = &el->el_chared.c_macro;
+
+    if (str != NULL && ma->level + 1 < EL_MAXMACRO) {
+	ma->level++;
+	ma->macro[ma->level] = (char *) str;
+    }
+    else {
+	term_beep(el);
+	term__flush();
+    }
+}
+
+
+/* read_getcmd():
+ *	Return next command from the input stream.
+ */
+private int
+read_getcmd(el, cmdnum, ch)
+    EditLine *el;
+    el_action_t *cmdnum;
+    char *ch;
+{
+    el_action_t  cmd = 0;
+    int     num;
+
+    while (cmd == 0 || cmd == ED_SEQUENCE_LEAD_IN) {
+	if ((num = el_getc(el, ch)) != 1)	/* if EOF or error */
+	    return num;
+
+#ifdef	KANJI
+	if ((*ch & 0200)) {
+	    el->el_state.metanext = 0;
+	    cmd = CcViMap[' '];
+	    break;
+	}
+	else
+#endif /* KANJI */
+
+	if (el->el_state.metanext) {
+	    el->el_state.metanext = 0;
+	    *ch |= 0200;
+	}
+	cmd = el->el_map.current[(unsigned char) *ch];
+	if (cmd == ED_SEQUENCE_LEAD_IN) {
+	    key_value_t val;
+	    switch (key_get(el, ch, &val)) {
+	    case XK_CMD:
+		cmd = val.cmd;
+		break;
+	    case XK_STR:
+		el_push(el, val.str);
+		break;
+#ifdef notyet
+	    case XK_EXE:
+		/* XXX: In the future to run a user function */
+		RunCommand(val.str);
+		break;
+#endif
+	    default:
+		abort();
+		break;
+	    }
+	}
+	if (el->el_map.alt == NULL) 
+	    el->el_map.current = el->el_map.key;
+    }
+    *cmdnum = cmd;
+    return OKCMD;
+}
+
+
+/* el_getc():
+ *	Read a character
+ */
+public int
+el_getc(el, cp)
+    EditLine *el;
+    char *cp;
+{
+    int num_read;
+    unsigned char tcp;
+    int tried = 0;
+
+    c_macro_t *ma = &el->el_chared.c_macro;
+
+    term__flush();
+    for (;;) {
+	if (ma->level < 0) {
+	    if (!read_preread(el))
+		break;
+	}
+	if (ma->level < 0) 
+	    break;
+   
+	if (*ma->macro[ma->level] == 0) {
+	    ma->level--;
+	    continue;
+	}
+	*cp = *ma->macro[ma->level]++ & 0377;
+	if (*ma->macro[ma->level] == 0) {	/* Needed for QuoteMode On */
+	    ma->level--;
+	}
+	return 1;
+    }
+
+#ifdef DEBUG_READ
+    (void) fprintf(el->el_errfile, "Turning raw mode on\n");
+#endif /* DEBUG_READ */
+    if (tty_rawmode(el) < 0)	/* make sure the tty is set up correctly */
+	return 0;
+
+#ifdef DEBUG_READ
+    (void) fprintf(el->el_errfile, "Reading a character\n");
+#endif /* DEBUG_READ */
+    while ((num_read = read(el->el_infd, (char *) &tcp, 1)) == -1)
+	if (!tried && read__fixio(el->el_infd, errno) == 0)
+	    tried = 1;
+	else {
+	    *cp = '\0';
+	    return -1;
+	}
+#ifdef DEBUG_READ
+    (void) fprintf(el->el_errfile, "Got it %c\n", tcp);
+#endif /* DEBUG_READ */
+    *cp = tcp;
+    return num_read;
+}
+
+
+
+public const char *
+el_gets(el, nread)
+    EditLine *el;
+    int *nread;
+{
+    int retval;
+    el_action_t  cmdnum = 0;
+    int     num;		/* how many chars we have read at NL */
+    char    ch;
+
+    if (el->el_flags & HANDLE_SIGNALS)
+	sig_set(el);
+
+    re_clear_display(el);		/* reset the display stuff */
+    ch_reset(el);
+
+#ifdef FIONREAD
+    if (el->el_tty.t_mode == EX_IO && ma->level < 0) {
+	long    chrs = 0;
+
+	(void) ioctl(el->el_infd, FIONREAD, (ioctl_t) &chrs);
+	if (chrs == 0) {
+	    if (tty_rawmode(el) < 0) {
+		if (nread)
+			*nread = 0;
+		return NULL;
+	    }
+	}
+    }
+#endif /* FIONREAD */
+
+    re_refresh(el);			/* print the prompt */
+
+    for (num = OKCMD; num == OKCMD;) {	/* while still editing this line */
+#ifdef DEBUG_EDIT
+	read_debug(el);
+#endif /* DEBUG_EDIT */
+	/* if EOF or error */
+	if ((num = read_getcmd(el, &cmdnum, &ch)) != OKCMD) {
+#ifdef DEBUG_READ
+	    (void) fprintf(el->el_errfile, "Returning from el_gets %d\n", num);
+#endif /* DEBUG_READ */
+	    break;
+	}
+
+	if (cmdnum >= el->el_map.nfunc) {	/* BUG CHECK command */
+#ifdef DEBUG_EDIT
+	    (void) fprintf(el->el_errfile, 
+			   "ERROR: illegal command from key 0%o\r\n", ch);
+#endif /* DEBUG_EDIT */
+	    continue;		/* try again */
+	}
+
+	/* now do the real command */
+#ifdef DEBUG_READ
+	{
+	    el_bindings_t *b;
+	    for (b = el->el_map.help; b->name; b++)
+		if (b->func == cmdnum)
+		    break;
+	    if (b->name)
+		(void) fprintf(el->el_errfile, "Executing %s\n", b->name);
+	    else
+		(void) fprintf(el->el_errfile, "Error command = %d\n", cmdnum);
+	}
+#endif /* DEBUG_READ */
+	retval = (*el->el_map.func[cmdnum])(el, ch);
+
+	/* save the last command here */
+	el->el_state.lastcmd = cmdnum;
+
+	/* use any return value */
+	switch (retval) {
+	case CC_CURSOR:
+	    el->el_state.argument = 1;
+	    el->el_state.doingarg = 0;
+	    re_refresh_cursor(el);
+	    break;
+
+	case CC_REFRESH:
+	    el->el_state.argument = 1;
+	    el->el_state.doingarg = 0;
+	    re_refresh(el);
+	    break;
+
+	case CC_NORM:		/* normal char */
+	    el->el_state.argument = 1;
+	    el->el_state.doingarg = 0;
+	    break;
+
+	case CC_ARGHACK:	/* Suggested by Rich Salz */
+	    /* <rsalz@pineapple.bbn.com> */
+	    break;		/* keep going... */
+
+	case CC_EOF:		/* end of file typed */
+	    num = 0;
+	    break;
+
+	case CC_NEWLINE:	/* normal end of line */
+	    num = el->el_line.lastchar - el->el_line.buffer;	
+	    break;
+
+	case CC_FATAL:		/* fatal error, reset to known state */
+#ifdef DEBUG_READ
+	    (void) fprintf(el->el_errfile, "*** editor fatal ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+	    /* put (real) cursor in a known place */
+	    re_clear_display(el);	/* reset the display stuff */
+	    ch_reset(el);		/* reset the input pointers */
+	    re_refresh(el);		/* print the prompt again */
+	    el->el_state.argument = 1;
+	    el->el_state.doingarg = 0;
+	    break;
+
+	case CC_ERROR:
+	default:		/* functions we don't know about */
+#ifdef DEBUG_READ
+	    (void) fprintf(el->el_errfile, "*** editor ERROR ***\r\n\n");
+#endif /* DEBUG_READ */
+	    el->el_state.argument = 1;
+	    el->el_state.doingarg = 0;
+	    term_beep(el);
+	    term__flush();
+	    break;
+	}
+    }
+
+    (void) tty_cookedmode(el);	/* make sure the tty is set up correctly */
+    term__flush();		/* flush any buffered output */
+    if (el->el_flags & HANDLE_SIGNALS)
+	sig_clr(el);
+    if (nread)
+	    *nread = num;
+    return num ? el->el_line.buffer : NULL;
+}
diff --git a/lib/libedit/refresh.c b/lib/libedit/refresh.c
new file mode 100644
index 00000000000..b64d0119c6e
--- /dev/null
+++ b/lib/libedit/refresh.c
@@ -0,0 +1,1013 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)refresh.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * refresh.c: Lower level screen refreshing functions
+ */
+#include "sys.h"
+#include <stdio.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "el.h"
+
+private	void	re_addc 		__P((EditLine *, int));
+private	void	re_update_line 		__P((EditLine *, char *, char *, int));
+private	void	re_insert		__P((EditLine *, char *, int, int, 
+					     char *, int));
+private	void	re_delete		__P((EditLine *, char *, int, int, 
+					     int));
+private	void	re_fastputc		__P((EditLine *, int));
+
+private	void	re__strncopy		__P((char *, char *, size_t));
+private	void	re__copy_and_pad	__P((char *, char *, size_t));
+
+#ifdef DEBUG_REFRESH
+private	void	re_printstr		__P((EditLine *, char *, char *, 
+					     char *));
+# define __F el->el_errfile
+# define RE_DEBUG(a, b, c)	do 				\
+				    if (a) {			\
+					(void) fprintf b;	\
+					c;			\
+				    }				\
+				while (0)
+/* re_printstr():
+ *	Print a string on the debugging pty
+ */
+private void
+re_printstr(el, str, f, t)
+    EditLine *el;
+    char *str;
+    char *f, *t;
+{
+    RE_DEBUG(1,(__F, "%s:\"", str),);
+    while (f < t)
+	RE_DEBUG(1,(__F, "%c", *f++ & 0177),);
+    RE_DEBUG(1,(__F, "\"\r\n"),);
+} 
+#else
+# define RE_DEBUG(a, b, c)
+#endif
+
+
+/* re_addc():
+ *	Draw c, expanding tabs, control chars etc.
+ */
+private void
+re_addc(el, c)
+    EditLine *el;
+    int c;
+{
+    if (isprint(c)) {
+	re_putc(el, c);
+	return;
+    }
+    if (c == '\n') {			/* expand the newline	 */
+	re_putc(el, '\0');		/* assure end of line	 */
+	el->el_refresh.r_cursor.h = 0;	/* reset cursor pos	 */
+	el->el_refresh.r_cursor.v++;
+	return;
+    }
+    if (c == '\t') {		/* expand the tab 	 */
+	for (;;) {
+	    re_putc(el, ' ');
+	    if ((el->el_refresh.r_cursor.h & 07) == 0)
+		break;		/* go until tab stop	 */
+	}
+    }
+    else if (iscntrl(c)) {
+	re_putc(el, '^');
+	if (c == '\177') 
+	    re_putc(el, '?');
+	else 
+	    /* uncontrolify it; works only for iso8859-1 like sets */
+	    re_putc(el, (c | 0100));
+    }
+    else {
+	re_putc(el, '\\');
+	re_putc(el, ((c >> 6) & 07) + '0');
+	re_putc(el, ((c >> 3) & 07) + '0');
+	re_putc(el, (c & 07) + '0');
+    }
+} /* end re_addc */
+
+
+/* re_putc():
+ *	Draw the character given
+ */
+protected void
+re_putc(el, c)
+    EditLine *el;
+    int c;
+{
+    RE_DEBUG(1,(__F, "printing %3.3o '%c'\r\n", c, c),);
+
+    el->el_vdisplay[el->el_refresh.r_cursor.v][el->el_refresh.r_cursor.h] = c;
+    el->el_refresh.r_cursor.h++;				/* advance to next place */
+    if (el->el_refresh.r_cursor.h >= el->el_term.t_size.h) {
+	el->el_vdisplay[el->el_refresh.r_cursor.v][el->el_term.t_size.h] = '\0';	
+						/* assure end of line */
+	el->el_refresh.r_cursor.h = 0;				/* reset it. */
+	el->el_refresh.r_cursor.v++;
+	RE_DEBUG(el->el_refresh.r_cursor.v >= el->el_term.t_size.v, 
+		 (__F, "\r\nre_putc: overflow! r_cursor.v == %d > %d\r\n",
+		  el->el_refresh.r_cursor.v, el->el_term.t_size.v), abort());
+    }
+} /* end re_putc */
+
+
+/* re_refresh():
+ *	draws the new virtual screen image from the current input
+ *  	line, then goes line-by-line changing the real image to the new
+ *	virtual image. The routine to re-draw a line can be replaced
+ *	easily in hopes of a smarter one being placed there.
+ */
+protected void
+re_refresh(el)
+    EditLine *el;
+{
+    int i;
+    char *cp;
+    coord_t     cur;
+
+    RE_DEBUG(1,(__F, "el->el_line.buffer = :%s:\r\n", el->el_line.buffer),);
+
+    /* reset the Drawing cursor */
+    el->el_refresh.r_cursor.h = 0;
+    el->el_refresh.r_cursor.v = 0;
+
+    cur.h = -1;			/* set flag in case I'm not set */
+    cur.v = 0;
+
+    prompt_print(el);
+
+    /* draw the current input buffer */
+    for (cp = el->el_line.buffer; cp < el->el_line.lastchar; cp++) {
+	if (cp == el->el_line.cursor) {
+	    cur.h = el->el_refresh.r_cursor.h;	/* save for later */
+	    cur.v = el->el_refresh.r_cursor.v;
+	}
+	re_addc(el, *cp);
+    }
+
+    if (cur.h == -1) {		/* if I haven't been set yet, I'm at the end */
+	cur.h = el->el_refresh.r_cursor.h;
+	cur.v = el->el_refresh.r_cursor.v;
+    }
+    /* must be done BEFORE the NUL is written */
+    el->el_refresh.r_newcv = el->el_refresh.r_cursor.v;	
+    re_putc(el, '\0');		/* put NUL on end */
+
+    RE_DEBUG(1,(__F, 
+	     "term.h=%d vcur.h=%d vcur.v=%d vdisplay[0]=\r\n:%80.80s:\r\n",
+	     el->el_term.t_size.h, el->el_refresh.r_cursor.h, 
+	     el->el_refresh.r_cursor.v, el->el_vdisplay[0]),);
+
+    RE_DEBUG(1,(__F, "updating %d lines.\r\n", el->el_refresh.r_newcv),);
+    for (i = 0; i <= el->el_refresh.r_newcv; i++) {
+	/* NOTE THAT re_update_line MAY CHANGE el_display[i] */
+	re_update_line(el, el->el_display[i], el->el_vdisplay[i], i);
+
+	/*
+	 * Copy the new line to be the current one, and pad out with spaces
+	 * to the full width of the terminal so that if we try moving the
+	 * cursor by writing the character that is at the end of the
+	 * screen line, it won't be a NUL or some old leftover stuff.
+	 */
+	re__copy_and_pad(el->el_display[i], el->el_vdisplay[i], 
+			el->el_term.t_size.h);
+    }
+    RE_DEBUG(1,(__F,
+	 "\r\nel->el_refresh.r_cursor.v=%d,el->el_refresh.r_oldcv=%d i=%d\r\n",
+	 el->el_refresh.r_cursor.v, el->el_refresh.r_oldcv, i),);
+
+    if (el->el_refresh.r_oldcv > el->el_refresh.r_newcv) 
+	for (; i <= el->el_refresh.r_oldcv; i++) {
+	    term_move_to_line(el, i);
+	    term_move_to_char(el, 0);
+	    term_clear_EOL(el, strlen(el->el_display[i]));
+#ifdef DEBUG_REFRESH
+	    term_overwrite(el, "C\b", 2);
+#endif /* DEBUG_REFRESH */
+	    *el->el_display[i] = '\0';
+	}
+    
+    el->el_refresh.r_oldcv = el->el_refresh.r_newcv;	/* set for next time */
+    RE_DEBUG(1,(__F, 
+		"\r\ncursor.h = %d, cursor.v = %d, cur.h = %d, cur.v = %d\r\n",
+		el->el_refresh.r_cursor.h, el->el_refresh.r_cursor.v, 
+		cur.h, cur.v),);
+    term_move_to_line(el, cur.v);		/* go to where the cursor is */
+    term_move_to_char(el, cur.h);
+} /* end re_refresh */
+
+
+/* re_goto_bottom():
+ *	 used to go to last used screen line 
+ */
+protected void
+re_goto_bottom(el)
+    EditLine *el;
+{
+    term_move_to_line(el, el->el_refresh.r_oldcv);
+    term__putc('\r');
+    term__putc('\n');
+    re_clear_display(el);
+    term__flush();
+} /* end re_goto_bottom */
+
+
+/* re_insert():
+ *	insert num characters of s into d (in front of the character)
+ *	at dat, maximum length of d is dlen 
+ */
+private void
+/*ARGSUSED*/
+re_insert(el, d, dat, dlen, s, num)
+    EditLine *el;
+    char *d;
+    int dat, dlen;
+    char *s;
+    int num;
+{
+    char *a, *b;
+
+    if (num <= 0)
+	return;
+    if (num > dlen - dat)
+	num = dlen - dat;
+
+    RE_DEBUG(1,(__F, "re_insert() starting: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d),);
+    RE_DEBUG(1,(__F, "s == \"%s\"n", s),);
+
+    /* open up the space for num chars */
+    if (num > 0) {
+	b = d + dlen - 1;
+	a = b - num;
+	while (a >= &d[dat])
+	    *b-- = *a--;
+	d[dlen] = '\0';		/* just in case */
+    }
+    RE_DEBUG(1,(__F, 
+		"re_insert() after insert: %d at %d max %d, d == \"%s\"\n",
+		num, dat, dlen, d),);
+    RE_DEBUG(1,(__F, "s == \"%s\"n", s),);
+
+    /* copy the characters */
+    for (a = d + dat; (a < d + dlen) && (num > 0); num--)
+	*a++ = *s++;
+
+    RE_DEBUG(1,(__F, "re_insert() after copy: %d at %d max %d, %s == \"%s\"\n",
+	     num, dat, dlen, d, s),);
+    RE_DEBUG(1,(__F, "s == \"%s\"n", s),);
+} /* end re_insert */
+
+
+/* re_delete():
+ *	delete num characters d at dat, maximum length of d is dlen 
+ */
+private void
+/*ARGSUSED*/
+re_delete(el, d, dat, dlen, num)
+    EditLine *el;
+    char *d;
+    int dat, dlen, num;
+{
+    char *a, *b;
+
+    if (num <= 0)
+	return;
+    if (dat + num >= dlen) {
+	d[dat] = '\0';
+	return;
+    }
+
+    RE_DEBUG(1,(__F, "re_delete() starting: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d),);
+
+    /* open up the space for num chars */
+    if (num > 0) {
+	b = d + dat;
+	a = b + num;
+	while (a < &d[dlen])
+	    *b++ = *a++;
+	d[dlen] = '\0';		/* just in case */
+    }
+    RE_DEBUG(1,(__F, "re_delete() after delete: %d at %d max %d, d == \"%s\"\n",
+	    num, dat, dlen, d),);
+} /* end re_delete */
+
+
+/* re__strncopy():
+ *	Like strncpy without padding.
+ */
+private void
+re__strncopy(a, b, n)
+    char *a, *b;
+    size_t n;
+{
+    while (n-- && *b)
+	*a++ = *b++;
+} /* end re__strncopy */
+
+
+/* ****************************************************************
+    re_update_line() is based on finding the middle difference of each line
+    on the screen; vis:
+
+			     /old first difference
+	/beginning of line   |              /old last same       /old EOL
+	v		     v              v                    v
+old:	eddie> Oh, my little gruntle-buggy is to me, as lurgid as
+new:	eddie> Oh, my little buggy says to me, as lurgid as
+	^		     ^        ^			   ^
+	\beginning of line   |        \new last same	   \new end of line
+			     \new first difference
+
+    all are character pointers for the sake of speed.  Special cases for
+    no differences, as well as for end of line additions must be handled.
+**************************************************************** */
+
+/* Minimum at which doing an insert it "worth it".  This should be about
+ * half the "cost" of going into insert mode, inserting a character, and
+ * going back out.  This should really be calculated from the termcap
+ * data...  For the moment, a good number for ANSI terminals.
+ */
+#define MIN_END_KEEP	4
+
+private void
+re_update_line(el, old, new, i)
+    EditLine *el;
+    char *old, *new;
+    int     i;
+{
+    char *o, *n, *p, c;
+    char   *ofd, *ols, *oe, *nfd, *nls, *ne;
+    char   *osb, *ose, *nsb, *nse;
+    int     fx, sx;
+
+    /*
+     * find first diff
+     */
+    for (o = old, n = new; *o && (*o == *n); o++, n++)
+	continue;
+    ofd = o;
+    nfd = n;
+
+    /*
+     * Find the end of both old and new
+     */
+    while (*o)
+	o++;
+    /* 
+     * Remove any trailing blanks off of the end, being careful not to
+     * back up past the beginning.
+     */
+    while (ofd < o) {
+	if (o[-1] != ' ')
+	    break;
+	o--;
+    }
+    oe = o;
+    *oe = '\0';
+  
+    while (*n)
+	n++;
+
+    /* remove blanks from end of new */
+    while (nfd < n) {
+	if (n[-1] != ' ')
+	    break;
+	n--;
+    }
+    ne = n;
+    *ne = '\0';
+  
+    /*
+     * if no diff, continue to next line of redraw
+     */
+    if (*ofd == '\0' && *nfd == '\0') {
+	RE_DEBUG(1,(__F, "no difference.\r\n"),);
+	return;
+    }
+
+    /*
+     * find last same pointer
+     */
+    while ((o > ofd) && (n > nfd) && (*--o == *--n))
+	continue;
+    ols = ++o;
+    nls = ++n;
+
+    /*
+     * find same begining and same end
+     */
+    osb = ols;
+    nsb = nls;
+    ose = ols;
+    nse = nls;
+
+    /*
+     * case 1: insert: scan from nfd to nls looking for *ofd
+     */
+    if (*ofd) {
+	for (c = *ofd, n = nfd; n < nls; n++) {
+	    if (c == *n) {
+		for (o = ofd, p = n; p < nls && o < ols && *o == *p; o++, p++)
+		    continue;
+		/*
+		 * if the new match is longer and it's worth keeping, then we
+		 * take it
+		 */
+		if (((nse - nsb) < (p - n)) && (2 * (p - n) > n - nfd)) {
+		    nsb = n;
+		    nse = p;
+		    osb = ofd;
+		    ose = o;
+		}
+	    }
+	}
+    }
+
+    /*
+     * case 2: delete: scan from ofd to ols looking for *nfd
+     */
+    if (*nfd) {
+	for (c = *nfd, o = ofd; o < ols; o++) {
+	    if (c == *o) {
+		for (n = nfd, p = o; p < ols && n < nls && *p == *n; p++, n++)
+		    continue;
+		/*
+		 * if the new match is longer and it's worth keeping, then we
+		 * take it
+		 */
+		if (((ose - osb) < (p - o)) && (2 * (p - o) > o - ofd)) {
+		    nsb = nfd;
+		    nse = n;
+		    osb = o;
+		    ose = p;
+		}
+	    }
+	}
+    }
+
+    /*
+     * Pragmatics I: If old trailing whitespace or not enough characters to
+     * save to be worth it, then don't save the last same info.
+     */
+    if ((oe - ols) < MIN_END_KEEP) {
+	ols = oe;
+	nls = ne;
+    }
+
+    /*
+     * Pragmatics II: if the terminal isn't smart enough, make the data dumber
+     * so the smart update doesn't try anything fancy
+     */
+
+    /*
+     * fx is the number of characters we need to insert/delete: in the
+     * beginning to bring the two same begins together
+     */
+    fx = (nsb - nfd) - (osb - ofd);
+    /*
+     * sx is the number of characters we need to insert/delete: in the end to
+     * bring the two same last parts together
+     */
+    sx = (nls - nse) - (ols - ose);
+
+    if (!EL_CAN_INSERT) {
+	if (fx > 0) {
+	    osb = ols;
+	    ose = ols;
+	    nsb = nls;
+	    nse = nls;
+	}
+	if (sx > 0) {
+	    ols = oe;
+	    nls = ne;
+	}
+	if ((ols - ofd) < (nls - nfd)) {
+	    ols = oe;
+	    nls = ne;
+	}
+    }
+    if (!EL_CAN_DELETE) {
+	if (fx < 0) {
+	    osb = ols;
+	    ose = ols;
+	    nsb = nls;
+	    nse = nls;
+	}
+	if (sx < 0) {
+	    ols = oe;
+	    nls = ne;
+	}
+	if ((ols - ofd) > (nls - nfd)) {
+	    ols = oe;
+	    nls = ne;
+	}
+    }
+
+    /*
+     * Pragmatics III: make sure the middle shifted pointers are correct if
+     * they don't point to anything (we may have moved ols or nls).
+     */
+    /* if the change isn't worth it, don't bother */
+    /* was: if (osb == ose) */
+    if ((ose - osb) < MIN_END_KEEP) {
+	osb = ols;
+	ose = ols;
+	nsb = nls;
+	nse = nls;
+    }
+
+    /*
+     * Now that we are done with pragmatics we recompute fx, sx
+     */
+    fx = (nsb - nfd) - (osb - ofd);
+    sx = (nls - nse) - (ols - ose);
+
+    RE_DEBUG(1,(__F, "\n"),);
+    RE_DEBUG(1,(__F, "ofd %d, osb %d, ose %d, ols %d, oe %d\n",
+	    ofd - old, osb - old, ose - old, ols - old, oe - old),);
+    RE_DEBUG(1,(__F, "nfd %d, nsb %d, nse %d, nls %d, ne %d\n",
+	    nfd - new, nsb - new, nse - new, nls - new, ne - new),);
+    RE_DEBUG(1,(__F, 
+		"xxx-xxx:\"00000000001111111111222222222233333333334\"\r\n"),);
+    RE_DEBUG(1,(__F,
+		"xxx-xxx:\"01234567890123456789012345678901234567890\"\r\n"),);
+#ifdef DEBUG_REFRESH
+    re_printstr(el, "old- oe", old, oe);
+    re_printstr(el, "new- ne", new, ne);
+    re_printstr(el, "old-ofd", old, ofd);
+    re_printstr(el, "new-nfd", new, nfd);
+    re_printstr(el, "ofd-osb", ofd, osb);
+    re_printstr(el, "nfd-nsb", nfd, nsb);
+    re_printstr(el, "osb-ose", osb, ose);
+    re_printstr(el, "nsb-nse", nsb, nse);
+    re_printstr(el, "ose-ols", ose, ols);
+    re_printstr(el, "nse-nls", nse, nls);
+    re_printstr(el, "ols- oe", ols, oe);
+    re_printstr(el, "nls- ne", nls, ne);
+#endif /* DEBUG_REFRESH */
+
+    /*
+     * el_cursor.v to this line i MUST be in this routine so that if we
+     * don't have to change the line, we don't move to it. el_cursor.h to first
+     * diff char
+     */
+    term_move_to_line(el, i);
+
+    /*
+     * at this point we have something like this:
+     * 
+     * /old                  /ofd    /osb               /ose    /ols     /oe
+     * v.....................v       v..................v       v........v
+     * eddie> Oh, my fredded gruntle-buggy is to me, as foo var lurgid as
+     * eddie> Oh, my fredded quiux buggy is to me, as gruntle-lurgid as
+     * ^.....................^     ^..................^       ^........^ 
+     * \new                  \nfd  \nsb               \nse     \nls    \ne
+     * 
+     * fx is the difference in length between the the chars between nfd and
+     * nsb, and the chars between ofd and osb, and is thus the number of
+     * characters to delete if < 0 (new is shorter than old, as above),
+     * or insert (new is longer than short).
+     *
+     * sx is the same for the second differences.
+     */
+
+    /*
+     * if we have a net insert on the first difference, AND inserting the net
+     * amount ((nsb-nfd) - (osb-ofd)) won't push the last useful character
+     * (which is ne if nls != ne, otherwise is nse) off the edge of the screen
+     * (el->el_term.t_size.h) else we do the deletes first so that we keep everything we need
+     * to.
+     */
+
+    /*
+     * if the last same is the same like the end, there is no last same part,
+     * otherwise we want to keep the last same part set p to the last useful
+     * old character
+     */
+    p = (ols != oe) ? oe : ose;
+
+    /*
+     * if (There is a diffence in the beginning) && (we need to insert
+     * characters) && (the number of characters to insert is less than the term
+     * width) We need to do an insert! else if (we need to delete characters)
+     * We need to delete characters! else No insert or delete
+     */
+    if ((nsb != nfd) && fx > 0 && ((p - old) + fx <= el->el_term.t_size.h)) {
+	RE_DEBUG(1,(__F, "first diff insert at %d...\r\n", nfd - new),);
+	/*
+	 * Move to the first char to insert, where the first diff is.
+	 */
+	term_move_to_char(el, nfd - new);
+	/*
+	 * Check if we have stuff to keep at end
+	 */
+	if (nsb != ne) {
+	    RE_DEBUG(1,(__F, "with stuff to keep at end\r\n"),);
+	    /*
+	     * insert fx chars of new starting at nfd
+	     */
+	    if (fx > 0) {
+		RE_DEBUG(!EL_CAN_INSERT,
+			 (__F, "ERROR: cannot insert in early first diff\n"),);
+		term_insertwrite(el, nfd, fx);
+		re_insert(el, old, ofd - old, el->el_term.t_size.h, nfd, fx);
+	    }
+	    /*
+	     * write (nsb-nfd) - fx chars of new starting at (nfd + fx)
+	     */
+	    term_overwrite(el, nfd + fx, (nsb - nfd) - fx);
+	    re__strncopy(ofd + fx, nfd + fx, (nsb - nfd) - fx);
+	}
+	else {
+	    RE_DEBUG(1,(__F, "without anything to save\r\n"),);
+	    term_overwrite(el, nfd, (nsb - nfd));
+	    re__strncopy(ofd, nfd, (nsb - nfd));
+	    /*
+	     * Done
+	     */
+	    return;
+	}
+    }
+    else if (fx < 0) {
+	RE_DEBUG(1,(__F, "first diff delete at %d...\r\n", ofd - old),);
+	/*
+	 * move to the first char to delete where the first diff is
+	 */
+	term_move_to_char(el, ofd - old);
+	/*
+	 * Check if we have stuff to save
+	 */
+	if (osb != oe) {
+	    RE_DEBUG(1,(__F, "with stuff to save at end\r\n"),);
+	    /*
+	     * fx is less than zero *always* here but we check for code
+	     * symmetry
+	     */
+	    if (fx < 0) {
+		RE_DEBUG(!EL_CAN_DELETE,
+			 (__F, "ERROR: cannot delete in first diff\n"),);
+		term_deletechars(el, -fx);
+		re_delete(el, old, ofd - old, el->el_term.t_size.h, -fx);
+	    }
+	    /*
+	     * write (nsb-nfd) chars of new starting at nfd
+	     */
+	    term_overwrite(el, nfd, (nsb - nfd));
+	    re__strncopy(ofd, nfd, (nsb - nfd));
+
+	}
+	else {
+	    RE_DEBUG(1,(__F, "but with nothing left to save\r\n"),);
+	    /*
+	     * write (nsb-nfd) chars of new starting at nfd
+	     */
+	    term_overwrite(el, nfd, (nsb - nfd));
+	    RE_DEBUG(1,(__F, "cleareol %d\n", (oe - old) - (ne - new)),);
+	    term_clear_EOL(el, (oe - old) - (ne - new));
+	    /*
+	     * Done
+	     */
+	    return;
+	}
+    }
+    else
+	fx = 0;
+
+    if (sx < 0) {
+	RE_DEBUG(1,(__F, "second diff delete at %d...\r\n", (ose - old) + fx),);
+	/*
+	 * Check if we have stuff to delete
+	 */
+	/*
+	 * fx is the number of characters inserted (+) or deleted (-)
+	 */
+
+	term_move_to_char(el, (ose - old) + fx);
+	/*
+	 * Check if we have stuff to save
+	 */
+	if (ols != oe) {
+	    RE_DEBUG(1,(__F, "with stuff to save at end\r\n"),);
+	    /*
+	     * Again a duplicate test.
+	     */
+	    if (sx < 0) {
+		RE_DEBUG(!EL_CAN_DELETE, 
+			 (__F, "ERROR: cannot delete in second diff\n"),);
+		term_deletechars(el, -sx);
+	    }
+
+	    /*
+	     * write (nls-nse) chars of new starting at nse
+	     */
+	    term_overwrite(el, nse, (nls - nse));
+	}
+	else {
+	    RE_DEBUG(1,(__F, "but with nothing left to save\r\n"),);
+	    term_overwrite(el, nse, (nls - nse));
+	    RE_DEBUG(1,(__F, "cleareol %d\n", (oe - old) - (ne - new)),);
+	    term_clear_EOL(el, (oe - old) - (ne - new));
+	}
+    }
+
+    /*
+     * if we have a first insert AND WE HAVEN'T ALREADY DONE IT...
+     */
+    if ((nsb != nfd) && (osb - ofd) <= (nsb - nfd) && (fx == 0)) {
+	RE_DEBUG(1,(__F, "late first diff insert at %d...\r\n", nfd - new),);
+
+	term_move_to_char(el, nfd - new);
+	/*
+	 * Check if we have stuff to keep at the end
+	 */
+	if (nsb != ne) {
+	    RE_DEBUG(1,(__F, "with stuff to keep at end\r\n"),);
+	    /* 
+	     * We have to recalculate fx here because we set it
+	     * to zero above as a flag saying that we hadn't done
+	     * an early first insert.
+	     */
+	    fx = (nsb - nfd) - (osb - ofd);
+	    if (fx > 0) {
+		/*
+		 * insert fx chars of new starting at nfd
+		 */
+		RE_DEBUG(!EL_CAN_INSERT,
+			 (__F, "ERROR: cannot insert in late first diff\n"),);
+		term_insertwrite(el, nfd, fx);
+		re_insert(el, old, ofd - old, el->el_term.t_size.h, nfd, fx);
+	    }
+
+	    /*
+	     * write (nsb-nfd) - fx chars of new starting at (nfd + fx)
+	     */
+	    term_overwrite(el, nfd + fx, (nsb - nfd) - fx);
+	    re__strncopy(ofd + fx, nfd + fx, (nsb - nfd) - fx);
+	}
+	else {
+	    RE_DEBUG(1,(__F, "without anything to save\r\n"),);
+	    term_overwrite(el, nfd, (nsb - nfd));
+	    re__strncopy(ofd, nfd, (nsb - nfd));
+	}
+    }
+
+    /*
+     * line is now NEW up to nse
+     */
+    if (sx >= 0) {
+	RE_DEBUG(1,(__F, "second diff insert at %d...\r\n", nse - new),);
+	term_move_to_char(el, nse - new);
+	if (ols != oe) {
+	    RE_DEBUG(1,(__F, "with stuff to keep at end\r\n"),);
+	    if (sx > 0) {
+		/* insert sx chars of new starting at nse */
+		RE_DEBUG(!EL_CAN_INSERT,
+		         (__F, "ERROR: cannot insert in second diff\n"),);
+		term_insertwrite(el, nse, sx);
+	    }
+
+	    /*
+	     * write (nls-nse) - sx chars of new starting at (nse + sx)
+	     */
+	    term_overwrite(el, nse + sx, (nls - nse) - sx);
+	}
+	else {
+	    RE_DEBUG(1,(__F, "without anything to save\r\n"),);
+	    term_overwrite(el, nse, (nls - nse));
+
+	    /*
+             * No need to do a clear-to-end here because we were doing
+	     * a second insert, so we will have over written all of the
+	     * old string.
+	     */
+	}
+    }
+    RE_DEBUG(1,(__F, "done.\r\n"),);
+} /* re_update_line */
+
+
+/* re__copy_and_pad():
+ *	Copy string and pad with spaces
+ */
+private void
+re__copy_and_pad(dst, src, width)
+    char *dst, *src;
+    size_t width;
+{
+    int i;
+
+    for (i = 0; i < width; i++) {
+	if (*src == '\0')
+	    break;
+	*dst++ = *src++;
+    }
+
+    while (i < width) {
+	*dst++ = ' ';
+	i++;
+    }
+    *dst = '\0';
+} /* end re__copy_and_pad */
+
+
+/* re_refresh_cursor():
+ *	Move to the new cursor position
+ */
+protected void
+re_refresh_cursor(el)
+    EditLine *el;
+{
+    char *cp, c;
+    int h, v, th;
+
+    /* first we must find where the cursor is... */
+    h  = el->el_prompt.p_pos.h;
+    v  = el->el_prompt.p_pos.v;
+    th = el->el_term.t_size.h;		/* optimize for speed 		*/
+
+    /* do input buffer to el->el_line.cursor */
+    for (cp = el->el_line.buffer; cp < el->el_line.cursor; cp++) {	
+	c = *cp;
+	h++;			/* all chars at least this long */
+
+	if (c == '\n') {	/* handle newline in data part too */
+	    h = 0;
+	    v++;
+	}
+	else {
+	    if (c == '\t') {	/* if a tab, to next tab stop */
+		while (h & 07) {
+		    h++;
+		}
+	    }
+	    else if (iscntrl(c)) {	/* if control char */
+		h++;
+		if (h > th) {	/* if overflow, compensate */
+		    h = 1;
+		    v++;
+		}
+	    }
+	    else if (!isprint(c)) {
+		h += 3;
+		if (h > th) {	/* if overflow, compensate */
+		    h = h - th;
+		    v++;
+		}
+	    }
+	}
+
+	if (h >= th) {		/* check, extra long tabs picked up here also */
+	    h = 0;
+	    v++;
+	}
+    }
+
+    /* now go there */
+    term_move_to_line(el, v);
+    term_move_to_char(el, h);
+    term__flush();
+} /* re_refresh_cursor */
+
+
+/* re_fastputc():
+ *	Add a character fast.
+ */
+private void
+re_fastputc(el, c)
+    EditLine *el;
+    int    c;
+{
+    term__putc(c);
+    el->el_display[el->el_cursor.v][el->el_cursor.h++] = c;
+    if (el->el_cursor.h >= el->el_term.t_size.h) {	
+	/* if we must overflow */
+	el->el_cursor.h = 0;
+	el->el_cursor.v++;
+	el->el_refresh.r_oldcv++;
+	term__putc('\r');
+	term__putc('\n');
+    }
+} /* end re_fastputc */
+
+
+/* re_fastaddc():
+ *	we added just one char, handle it fast.
+ *	Assumes that screen cursor == real cursor 
+ */
+protected void
+re_fastaddc(el)
+    EditLine *el;
+{
+    char c;
+
+    c = el->el_line.cursor[-1];
+
+    if (c == '\t' || el->el_line.cursor != el->el_line.lastchar) {
+	re_refresh(el);		/* too hard to handle */
+	return;
+    }				/* else (only do at end of line, no TAB) */
+
+    if (iscntrl(c)) {		/* if control char, do caret */
+	char mc = (c == '\177') ? '?' : (c | 0100);
+	re_fastputc(el, '^');
+	re_fastputc(el, mc);
+    }
+    else if (isprint(c)) {	/* normal char */
+	re_fastputc(el, c);
+    }
+    else {
+	re_fastputc(el, '\\');
+	re_fastputc(el, ((c >> 6) & 7) + '0');
+	re_fastputc(el, ((c >> 3) & 7) + '0');
+	re_fastputc(el, (c & 7) + '0');
+    }
+    term__flush();
+} /* end re_fastaddc */
+
+
+/* re_clear_display():
+ *	clear the screen buffers so that new new prompt starts fresh. 
+ */
+protected void
+re_clear_display(el)
+    EditLine *el;
+{
+    int i;
+
+    el->el_cursor.v = 0;
+    el->el_cursor.h = 0;
+    for (i = 0; i < el->el_term.t_size.v; i++)
+	el->el_display[i][0] = '\0';
+    el->el_refresh.r_oldcv = 0;
+} /* end re_clear_display */
+
+
+/* re_clear_lines():
+ *	Make sure all lines are *really* blank 
+ */
+protected void
+re_clear_lines(el)
+    EditLine *el;
+{
+    if (EL_CAN_CEOL) {
+	int i;
+	term_move_to_char(el, 0);
+	for (i = 0; i <= el->el_refresh.r_oldcv; i++) {
+	    /* for each line on the screen */
+	    term_move_to_line(el, i);
+	    term_clear_EOL(el, el->el_term.t_size.h);
+	}
+	term_move_to_line(el, 0);
+    }
+    else {
+	term_move_to_line(el, el->el_refresh.r_oldcv);	/* go to last line */
+	term__putc('\r');				/* go to BOL */
+	term__putc('\n');				/* go to new line */
+    }
+} /* end re_clear_lines */
diff --git a/lib/libedit/refresh.h b/lib/libedit/refresh.h
new file mode 100644
index 00000000000..4fe50bc9aa3
--- /dev/null
+++ b/lib/libedit/refresh.h
@@ -0,0 +1,60 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)refresh.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.refresh.h: Screen refresh functions
+ */
+#ifndef _h_el_refresh
+#define _h_el_refresh
+
+#include "histedit.h"
+
+typedef struct {
+    coord_t 	 r_cursor;	/* Refresh cursor position	*/
+    int r_oldcv, r_newcv;	/* Vertical locations		*/
+} el_refresh_t;
+
+protected void	re_putc 		__P((EditLine *, int));
+protected void	re_clear_lines		__P((EditLine *));
+protected void	re_clear_display	__P((EditLine *));
+protected void	re_refresh		__P((EditLine *));
+protected void	re_refresh_cursor	__P((EditLine *));
+protected void	re_fastaddc		__P((EditLine *));
+protected void	re_goto_bottom		__P((EditLine *));
+
+#endif /* _h_el_refresh */
diff --git a/lib/libedit/search.c b/lib/libedit/search.c
new file mode 100644
index 00000000000..29b2f6f5234
--- /dev/null
+++ b/lib/libedit/search.c
@@ -0,0 +1,632 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)search.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * search.c: History and character search functions
+ */
+#include "sys.h"
+#include <stdlib.h>
+#if defined(REGEX)
+#include <regex.h>
+#elif defined(REGEXP)
+#include <regexp.h>
+#endif
+#include "el.h"
+
+/*
+ * Adjust cursor in vi mode to include the character under it
+ */
+#define EL_CURSOR(el) \
+    ((el)->el_line.cursor + (((el)->el_map.type == MAP_VI) && \
+			    ((el)->el_map.current == (el)->el_map.alt)))
+
+/* search_init():
+ *	Initialize the search stuff
+ */
+protected int
+search_init(el)
+    EditLine *el;
+{
+    el->el_search.patbuf = (char *) el_malloc(EL_BUFSIZ);
+    el->el_search.patlen = 0;
+    el->el_search.patdir = -1;
+    el->el_search.chacha = '\0';
+    el->el_search.chadir = -1;
+    return 0;
+}
+
+
+/* search_end():
+ *	Initialize the search stuff
+ */
+protected void
+search_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_search.patbuf);
+    el->el_search.patbuf = NULL;
+}
+
+#ifdef REGEXP
+/* regerror():
+ *	Handle regular expression errors
+ */
+public void 
+/*ARGSUSED*/
+regerror(msg)
+    const char *msg;
+{
+}
+#endif
+
+/* el_match():
+ *	Return if string matches pattern
+ */
+protected int
+el_match(str, pat)
+    const char *str;
+    const char *pat;
+{
+#if defined (REGEX)
+    regex_t re;
+    int rv;
+#elif defined (REGEXP)
+    regexp *rp;
+    int rv;
+#else 
+    extern char *re_comp __P((const char *));
+    extern int re_exec __P((const char *));
+#endif
+
+    if (strstr(str, pat) != NULL)
+	return 1;
+
+#if defined(REGEX)
+    if (regcomp(&re, pat, 0) == 0) {
+	rv = regexec(&re, str, 0, NULL, 0) == 0;
+	regfree(&re);
+    } else {
+	rv = 0;
+    }
+    return rv;
+#elif defined(REGEXP)
+    if ((re = regcomp(pat)) != NULL) {
+	rv = regexec(re, str);
+	free((ptr_t) re);
+    } else {
+	rv = 0;
+    }
+    return rv;
+#else
+    if (re_comp(pat) != NULL)
+	return 0;
+    else
+    return re_exec(str) == 1;
+#endif
+}
+
+
+/* c_hmatch():
+ *	 return True if the pattern matches the prefix
+ */
+protected int
+c_hmatch(el, str)
+    EditLine *el;
+    const char *str;
+{
+#ifdef SDEBUG
+    (void) fprintf(el->el_errfile, "match `%s' with `%s'\n",
+		   el->el_search.patbuf, str);
+#endif /* SDEBUG */
+    
+    return el_match(str, el->el_search.patbuf);
+}
+
+
+/* c_setpat(): 
+ *	Set the history seatch pattern
+ */
+protected void
+c_setpat(el)
+    EditLine *el;
+{
+    if (el->el_state.lastcmd != ED_SEARCH_PREV_HISTORY && 
+	el->el_state.lastcmd != ED_SEARCH_NEXT_HISTORY) {
+	el->el_search.patlen = EL_CURSOR(el) - el->el_line.buffer;
+	if (el->el_search.patlen >= EL_BUFSIZ) 
+	    el->el_search.patlen = EL_BUFSIZ -1;
+	if (el->el_search.patlen >= 0)  {
+	    (void) strncpy(el->el_search.patbuf, el->el_line.buffer, 
+			   el->el_search.patlen);
+	    el->el_search.patbuf[el->el_search.patlen] = '\0';
+	}
+	else
+	    el->el_search.patlen = strlen(el->el_search.patbuf);
+    }
+#ifdef SDEBUG
+    (void) fprintf(el->el_errfile, "\neventno = %d\n", el->el_history.eventno);
+    (void) fprintf(el->el_errfile, "patlen = %d\n", el->el_search.patlen);
+    (void) fprintf(el->el_errfile, "patbuf = \"%s\"\n", el->el_search.patbuf);
+    (void) fprintf(el->el_errfile, "cursor %d lastchar %d\n", 
+		   EL_CURSOR(el) - el->el_line.buffer, 
+		   el->el_line.lastchar - el->el_line.buffer);
+#endif
+}
+
+
+/* ce_inc_search():
+ *	Emacs incremental search
+ */
+protected el_action_t
+ce_inc_search(el, dir)
+    EditLine *el;
+    int dir;
+{
+    static char STRfwd[] = { 'f', 'w', 'd', '\0' },
+		STRbck[] = { 'b', 'c', 'k', '\0' };
+    static char pchar = ':';	/* ':' = normal, '?' = failed */
+    static char endcmd[2] = { '\0', '\0' };
+    char ch, *cp, *ocursor = el->el_line.cursor, oldpchar = pchar;
+
+    el_action_t ret = CC_NORM;
+
+    int ohisteventno = el->el_history.eventno,
+	oldpatlen = el->el_search.patlen,
+	newdir = dir,
+        done, redo;
+
+    if (el->el_line.lastchar + sizeof(STRfwd) / sizeof(char) + 2 + 
+	el->el_search.patlen >= el->el_line.limit)
+	return CC_ERROR;
+
+    for (;;) {
+
+	if (el->el_search.patlen == 0) {	/* first round */
+	    pchar = ':';
+#ifdef ANCHOR
+	    el->el_search.patbuf[el->el_search.patlen++] = '.';
+	    el->el_search.patbuf[el->el_search.patlen++] = '*';
+#endif
+	}
+	done = redo = 0;
+	*el->el_line.lastchar++ = '\n';
+	for (cp = newdir == ED_SEARCH_PREV_HISTORY ? STRbck : STRfwd; 
+	     *cp; *el->el_line.lastchar++ = *cp++)
+	     continue;
+	*el->el_line.lastchar++ = pchar;
+	for (cp = &el->el_search.patbuf[1]; 
+	      cp < &el->el_search.patbuf[el->el_search.patlen]; 
+	      *el->el_line.lastchar++ = *cp++)
+	    continue;
+	*el->el_line.lastchar = '\0';
+	re_refresh(el);
+
+	if (el_getc(el, &ch) != 1)
+	    return ed_end_of_file(el, 0);
+
+	switch (el->el_map.current[(unsigned char) ch]) {
+	case ED_INSERT:
+	case ED_DIGIT:
+	    if (el->el_search.patlen > EL_BUFSIZ - 3)
+		term_beep(el);
+	    else {
+		el->el_search.patbuf[el->el_search.patlen++] = ch;
+		*el->el_line.lastchar++ = ch;
+		*el->el_line.lastchar = '\0';
+		re_refresh(el);
+	    }
+	    break;
+
+	case EM_INC_SEARCH_NEXT:
+	    newdir = ED_SEARCH_NEXT_HISTORY;
+	    redo++;
+	    break;
+
+	case EM_INC_SEARCH_PREV:
+	    newdir = ED_SEARCH_PREV_HISTORY;
+	    redo++;
+	    break;
+
+	case ED_DELETE_PREV_CHAR:
+	    if (el->el_search.patlen > 1)
+		done++;
+	    else 
+		term_beep(el);
+	    break;
+
+	default:
+	    switch (ch) {
+	    case 0007:		/* ^G: Abort */
+		ret = CC_ERROR;
+		done++;
+		break;
+
+	    case 0027:		/* ^W: Append word */
+		/* No can do if globbing characters in pattern */
+		for (cp = &el->el_search.patbuf[1]; ; cp++)
+		    if (cp >= &el->el_search.patbuf[el->el_search.patlen]) {
+			el->el_line.cursor += el->el_search.patlen - 1;
+			cp = c__next_word(el->el_line.cursor, 
+					  el->el_line.lastchar, 1, ce__isword);
+			while (el->el_line.cursor < cp && 
+			       *el->el_line.cursor != '\n') {
+			    if (el->el_search.patlen > EL_BUFSIZ - 3) {
+				term_beep(el);
+				break;
+			    }
+			    el->el_search.patbuf[el->el_search.patlen++] = 
+				*el->el_line.cursor;
+			    *el->el_line.lastchar++ = *el->el_line.cursor++;
+			}
+			el->el_line.cursor = ocursor;
+			*el->el_line.lastchar = '\0';
+			re_refresh(el);
+			break;
+		    } else if (isglob(*cp)) {
+			term_beep(el);
+			break;
+		    }
+		break;
+	    
+	    default:		/* Terminate and execute cmd */
+		endcmd[0] = ch;
+		el_push(el, endcmd); 
+		/*FALLTHROUGH*/
+
+	    case 0033:		/* ESC: Terminate */
+		ret = CC_REFRESH;
+		done++;
+		break;
+	    }
+	    break;
+	}
+
+	while (el->el_line.lastchar > el->el_line.buffer && 
+	       *el->el_line.lastchar != '\n')
+	    *el->el_line.lastchar-- = '\0';
+	*el->el_line.lastchar = '\0';
+
+	if (!done) {
+
+	    /* Can't search if unmatched '[' */
+	    for (cp = &el->el_search.patbuf[el->el_search.patlen-1], ch = ']'; 
+		 cp > el->el_search.patbuf; cp--)
+		if (*cp == '[' || *cp == ']') {
+		    ch = *cp;
+		    break;
+		}
+
+	    if (el->el_search.patlen > 1 && ch != '[') {
+		if (redo && newdir == dir) {
+		    if (pchar == '?') {	/* wrap around */
+			el->el_history.eventno = 
+			    newdir == ED_SEARCH_PREV_HISTORY ? 0 : 0x7fffffff;
+			if (hist_get(el) == CC_ERROR)
+			    /* el->el_history.eventno was fixed by first call */
+			    (void) hist_get(el);
+			el->el_line.cursor = newdir == ED_SEARCH_PREV_HISTORY ?
+			    el->el_line.lastchar : el->el_line.buffer;
+		    } else
+			el->el_line.cursor += 
+				newdir == ED_SEARCH_PREV_HISTORY ? -1 : 1;
+		}
+#ifdef ANCHOR
+		el->el_search.patbuf[el->el_search.patlen++] = '.';
+		el->el_search.patbuf[el->el_search.patlen++] = '*';
+#endif
+		el->el_search.patbuf[el->el_search.patlen] = '\0';
+		if (el->el_line.cursor < el->el_line.buffer || 
+		    el->el_line.cursor > el->el_line.lastchar ||
+		    (ret = ce_search_line(el, &el->el_search.patbuf[1], 
+					  newdir)) == CC_ERROR) {
+		    /* avoid c_setpat */
+		    el->el_state.lastcmd = (el_action_t) newdir; 
+		    ret = newdir == ED_SEARCH_PREV_HISTORY ?
+			ed_search_prev_history(el, 0) : 
+			ed_search_next_history(el, 0);
+		    if (ret != CC_ERROR) {
+			el->el_line.cursor = newdir == ED_SEARCH_PREV_HISTORY ?
+			    el->el_line.lastchar : el->el_line.buffer;
+			(void) ce_search_line(el, &el->el_search.patbuf[1], 
+					      newdir);
+		    }
+		}
+		el->el_search.patbuf[--el->el_search.patlen] = '\0';
+		if (ret == CC_ERROR) {
+		    term_beep(el);
+		    if (el->el_history.eventno != ohisteventno) {
+			el->el_history.eventno = ohisteventno;
+			if (hist_get(el) == CC_ERROR)
+			    return CC_ERROR;
+		    }
+		    el->el_line.cursor = ocursor;
+		    pchar = '?';
+		} else {
+		    pchar = ':';
+		}
+	    }
+
+	    ret = ce_inc_search(el, newdir);
+
+	    if (ret == CC_ERROR && pchar == '?' && oldpchar == ':') 
+		/* break abort of failed search at last non-failed */
+		ret = CC_NORM;
+
+	}
+
+	if (ret == CC_NORM || (ret == CC_ERROR && oldpatlen == 0)) {
+	    /* restore on normal return or error exit */
+	    pchar = oldpchar;
+	    el->el_search.patlen = oldpatlen;
+	    if (el->el_history.eventno != ohisteventno) {
+		el->el_history.eventno = ohisteventno;
+		if (hist_get(el) == CC_ERROR)
+		    return CC_ERROR;
+	    }
+	    el->el_line.cursor = ocursor;
+	    if (ret == CC_ERROR)
+		re_refresh(el);
+	}
+	if (done || ret != CC_NORM)
+	    return ret;
+    }
+}
+
+
+/* cv_search():
+ *	Vi search.
+ */
+protected el_action_t
+cv_search(el, dir)
+    EditLine *el;
+    int dir;
+{
+    char ch;
+    char tmpbuf[EL_BUFSIZ];
+    int tmplen;
+
+    tmplen = 0;
+#ifdef ANCHOR
+    tmpbuf[tmplen++] = '.';
+    tmpbuf[tmplen++] = '*';
+#endif
+
+    el->el_line.buffer[0] = '\0';
+    el->el_line.lastchar = el->el_line.buffer;
+    el->el_line.cursor = el->el_line.buffer;
+    el->el_search.patdir = dir;
+
+    c_insert(el, 2);	/* prompt + '\n' */
+    *el->el_line.cursor++ = '\n';
+    *el->el_line.cursor++ = dir == ED_SEARCH_PREV_HISTORY ? '/' : '?';
+    re_refresh(el);
+
+#ifdef ANCHOR
+# define LEN 2
+#else
+# define LEN 0
+#endif
+
+    tmplen = c_gets(el, &tmpbuf[LEN]) + LEN;
+    ch = tmpbuf[tmplen];
+    tmpbuf[tmplen] = '\0';
+
+    if (tmplen == LEN) {
+	/*
+	 * Use the old pattern, but wild-card it.
+	 */
+	if (el->el_search.patlen == 0) {
+	    el->el_line.buffer[0] = '\0';
+	    el->el_line.lastchar = el->el_line.buffer;
+	    el->el_line.cursor = el->el_line.buffer;
+	    re_refresh(el);
+	    return CC_ERROR;
+	}
+#ifdef ANCHOR
+	if (el->el_search.patbuf[0] != '.' && el->el_search.patbuf[0] != '*') {
+	    (void) strcpy(tmpbuf, el->el_search.patbuf);
+	    el->el_search.patbuf[0] = '.';
+	    el->el_search.patbuf[1] = '*';
+	    (void) strcpy(&el->el_search.patbuf[2], tmpbuf);
+	    el->el_search.patlen++;
+	    el->el_search.patbuf[el->el_search.patlen++] = '.';
+	    el->el_search.patbuf[el->el_search.patlen++] = '*';
+	    el->el_search.patbuf[el->el_search.patlen] = '\0';
+	}
+#endif
+    }
+    else {
+#ifdef ANCHOR
+	tmpbuf[tmplen++] = '.';
+	tmpbuf[tmplen++] = '*';
+#endif
+	tmpbuf[tmplen] = '\0';
+	(void) strcpy(el->el_search.patbuf, tmpbuf);
+	el->el_search.patlen = tmplen;
+    }
+    el->el_state.lastcmd = (el_action_t) dir; /* avoid c_setpat */
+    el->el_line.cursor = el->el_line.lastchar = el->el_line.buffer;
+    if ((dir == ED_SEARCH_PREV_HISTORY ? ed_search_prev_history(el, 0) : 
+			        ed_search_next_history(el, 0)) == CC_ERROR) {
+	re_refresh(el);
+	return CC_ERROR;
+    }
+    else {
+	if (ch == 0033) {
+	    re_refresh(el);
+	    *el->el_line.lastchar++ = '\n';
+	    *el->el_line.lastchar = '\0';
+	    re_goto_bottom(el);
+	    return CC_NEWLINE;
+	}
+	else
+	    return CC_REFRESH;
+    }
+}
+
+
+/* ce_search_line():
+ *	Look for a pattern inside a line
+ */
+protected el_action_t
+ce_search_line(el, pattern, dir)
+    EditLine *el;
+    char *pattern;
+    int dir;
+{
+    char *cp;
+
+    if (dir == ED_SEARCH_PREV_HISTORY) {
+	for (cp = el->el_line.cursor; cp >= el->el_line.buffer; cp--)
+	    if (el_match(cp, pattern)) {
+		el->el_line.cursor = cp;
+		return CC_NORM;
+	    }
+	return CC_ERROR;
+    } else {
+	for (cp = el->el_line.cursor; *cp != '\0' && 
+	     cp < el->el_line.limit; cp++)
+	    if (el_match(cp, pattern)) {
+		el->el_line.cursor = cp;
+		return CC_NORM;
+	    }
+	return CC_ERROR;
+    }
+}
+
+
+/* cv_repeat_srch():
+ *	Vi repeat search
+ */
+protected el_action_t
+cv_repeat_srch(el, c)
+    EditLine *el;
+    int c;
+{
+#ifdef SDEBUG
+    (void) fprintf(el->el_errfile, "dir %d patlen %d patbuf %s\n", 
+		   c, el->el_search.patlen, el->el_search.patbuf);
+#endif
+
+    el->el_state.lastcmd = (el_action_t) c;  /* Hack to stop c_setpat */
+    el->el_line.lastchar = el->el_line.buffer;
+
+    switch (c) {
+    case ED_SEARCH_NEXT_HISTORY:
+	return ed_search_next_history(el, 0);
+    case ED_SEARCH_PREV_HISTORY:
+	return ed_search_prev_history(el, 0);
+    default:
+	return CC_ERROR;
+    }
+}
+
+
+/* cv_csearch_back():
+ *	Vi character search reverse
+ */
+protected el_action_t
+cv_csearch_back(el, ch, count, tflag)
+    EditLine *el;
+    int ch, count, tflag;
+{
+    char *cp;
+
+    cp = el->el_line.cursor;
+    while (count--) {
+	if (*cp == ch) 
+	    cp--;
+	while (cp > el->el_line.buffer && *cp != ch) 
+	    cp--;
+    }
+
+    if (cp < el->el_line.buffer || (cp == el->el_line.buffer && *cp != ch))
+	return CC_ERROR;
+
+    if (*cp == ch && tflag)
+	cp++;
+
+    el->el_line.cursor = cp;
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	el->el_line.cursor++;
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+
+    re_refresh_cursor(el);
+    return CC_NORM;
+}
+
+
+/* cv_csearch_fwd():
+ *	Vi character search forward
+ */
+protected el_action_t
+cv_csearch_fwd(el, ch, count, tflag)
+    EditLine *el;
+    int ch, count, tflag;
+{
+    char *cp;
+
+    cp = el->el_line.cursor;
+    while (count--) {
+	if(*cp == ch) 
+	    cp++;
+	while (cp < el->el_line.lastchar && *cp != ch) 
+	    cp++;
+    }
+
+    if (cp >= el->el_line.lastchar)
+	return CC_ERROR;
+
+    if (*cp == ch && tflag)
+	cp--;
+
+    el->el_line.cursor = cp;
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	el->el_line.cursor++;
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+    re_refresh_cursor(el);
+    return CC_NORM;
+}
diff --git a/lib/libedit/search.h b/lib/libedit/search.h
new file mode 100644
index 00000000000..51c58b4ab5e
--- /dev/null
+++ b/lib/libedit/search.h
@@ -0,0 +1,68 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)search.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.search.h: Line and history searching utilities
+ */
+#ifndef _h_el_search 
+#define _h_el_search 
+
+#include "histedit.h"
+
+typedef struct el_search_t {
+    char *patbuf;		/* The pattern buffer		*/
+    int  patlen;		/* Length of the pattern buffer	*/
+    int  patdir;		/* Direction of the last search	*/
+    int  chadir;		/* Character search direction	*/
+    char chacha;		/* Character we are looking for	*/
+} el_search_t;
+
+
+protected int 		el_match	__P((const char *, const char *));
+protected int		search_init	__P((EditLine *));
+protected void		search_end	__P((EditLine *));
+protected int		c_hmatch	__P((EditLine *, const char *));
+protected void		c_setpat	__P((EditLine *));
+protected el_action_t	ce_inc_search	__P((EditLine *, int));
+protected el_action_t	cv_search	__P((EditLine *, int));
+protected el_action_t	ce_search_line	__P((EditLine *, char *, int));
+protected el_action_t	cv_repeat_srch	__P((EditLine *, int));
+protected el_action_t	cv_csearch_back	__P((EditLine *, int, int, int));
+protected el_action_t	cv_csearch_fwd	__P((EditLine *, int, int, int));
+
+#endif /* _h_el_search */
diff --git a/lib/libedit/shlib_version b/lib/libedit/shlib_version
new file mode 100644
index 00000000000..97c9f92d6b8
--- /dev/null
+++ b/lib/libedit/shlib_version
@@ -0,0 +1,2 @@
+major=0
+minor=0
diff --git a/lib/libedit/sig.c b/lib/libedit/sig.c
new file mode 100644
index 00000000000..94ab4bb8380
--- /dev/null
+++ b/lib/libedit/sig.c
@@ -0,0 +1,193 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)sig.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * sig.c: Signal handling stuff.
+ *	  our policy is to trap all signals, set a good state
+ *	  and pass the ball to our caller.
+ */
+#include "sys.h"
+#include "el.h"
+#include <stdlib.h>
+
+private EditLine *sel = NULL;
+
+private int sighdl[] = {
+#define _DO(a)	(a),
+    ALLSIGS
+#undef _DO
+    -1
+};
+
+private void sig_handler	__P((int));
+
+/* sig_handler():
+ *	This is the handler called for all signals
+ *	XXX: we cannot pass any data so we just store the old editline
+ *	state in a private variable
+ */
+private void
+sig_handler(signo)
+    int signo;
+{
+    int i;
+    sigset_t nset, oset;
+
+    (void) sigemptyset(&nset);
+    (void) sigaddset(&nset, signo);
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+    switch (signo) {
+    case SIGCONT:
+	tty_rawmode(sel);
+	if (ed_redisplay(sel, 0) == CC_REFRESH)
+	    re_refresh(sel);
+	term__flush();
+	break;
+
+    case SIGWINCH:
+	el_resize(sel);
+	break;
+
+    default:
+	tty_cookedmode(sel);
+	break;
+    }
+
+    for (i = 0; sighdl[i] != -1; i++) 
+	if (signo == sighdl[i])
+	    break;
+
+    (void) signal(signo, sel->el_signal[i]);
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+    (void) kill(0, signo);
+}
+
+
+/* sig_init():
+ *	Initialize all signal stuff
+ */
+protected int
+sig_init(el)
+    EditLine *el;
+{
+    int i;
+    sigset_t nset, oset;
+
+    (void) sigemptyset(&nset);
+#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
+    ALLSIGS
+#undef _DO
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+#define SIGSIZE (sizeof(sighdl) / sizeof(sighdl[0]) * sizeof(sig_t))
+
+    el->el_signal = (sig_t *) el_malloc(SIGSIZE);
+    for (i = 0; sighdl[i] != -1; i++) 
+	el->el_signal[i] = BADSIG;
+
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+
+    return 0;
+}
+
+
+/* sig_end():
+ *	Clear all signal stuff
+ */
+protected void
+sig_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_signal);
+    el->el_signal = NULL;
+}
+
+
+/* sig_set():
+ *	set all the signal handlers
+ */
+protected void
+sig_set(el)
+    EditLine *el;
+{
+    int i;
+    sigset_t nset, oset;
+
+    (void) sigemptyset(&nset);
+#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
+    ALLSIGS
+#undef _DO
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+    for (i = 0; sighdl[i] != -1; i++) {
+	sig_t s;
+	/* This could happen if we get interrupted */
+	if ((s = signal(sighdl[i], sig_handler)) != sig_handler)
+	    el->el_signal[i] = s;
+    }
+    sel = el;
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
+
+
+/* sig_clr():
+ *	clear all the signal handlers
+ */
+protected void
+sig_clr(el)
+    EditLine *el;
+{
+    int i;
+    sigset_t nset, oset;
+
+    (void) sigemptyset(&nset);
+#define _DO(a) (void) sigaddset(&nset, SIGWINCH);
+    ALLSIGS
+#undef _DO
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+    for (i = 0; sighdl[i] != -1; i++) 
+	if (el->el_signal[i] != BADSIG)
+	    (void) signal(sighdl[i], el->el_signal[i]);
+
+    sel = NULL;	/* we are going to die if the handler is called */
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+}
diff --git a/lib/libedit/sig.h b/lib/libedit/sig.h
new file mode 100644
index 00000000000..98da74f44c4
--- /dev/null
+++ b/lib/libedit/sig.h
@@ -0,0 +1,70 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sig.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.sig.h: Signal handling functions
+ */
+#ifndef _h_el_sig
+#define _h_el_sig
+
+#include <signal.h>
+
+#include "histedit.h"
+
+/*
+ * Define here all the signals we are going to handle
+ * The _DO macro is used to iterate in the source code
+ */
+#define ALLSIGS 	\
+    _DO(SIGINT)		\
+    _DO(SIGTSTP)	\
+    _DO(SIGSTOP)	\
+    _DO(SIGQUIT)	\
+    _DO(SIGHUP)		\
+    _DO(SIGTERM)	\
+    _DO(SIGCONT)	\
+    _DO(SIGWINCH)
+
+typedef sig_t *el_signal_t;
+
+protected void	sig_end		__P((EditLine*));
+protected int	sig_init	__P((EditLine*));
+protected void	sig_set		__P((EditLine*));
+protected void	sig_clr		__P((EditLine*));
+
+#endif /* _h_el_sig */
diff --git a/lib/libedit/sys.h b/lib/libedit/sys.h
new file mode 100644
index 00000000000..eae20f61b8d
--- /dev/null
+++ b/lib/libedit/sys.h
@@ -0,0 +1,116 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)sys.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * sys.h: Put all the stupid compiler and system dependencies here...
+ */
+#ifndef _h_sys
+#define _h_sys
+
+#ifndef public
+# define public		/* Externally visible functions/variables */
+#endif
+
+#ifndef private
+# define private	static	/* Always hidden internals */
+#endif
+
+#ifndef protected
+# define protected	/* Redefined from elsewhere to "static" */
+			/* When we want to hide everything	*/
+#endif
+
+#include <sys/cdefs.h>
+
+#ifndef _PTR_T
+# define _PTR_T
+# if __STDC__
+typedef void* ptr_t;
+# else
+typedef char* ptr_t;
+# endif
+#endif
+
+#ifndef _IOCTL_T
+# define _IOCTL_T
+# if __STDC__
+typedef void* ioctl_t;
+# else
+typedef char* ioctl_t;
+# endif
+#endif
+
+#include <stdio.h>
+
+#define	REGEX		/* Use POSIX.2 regular expression functions */
+#undef	REGEXP		/* Use UNIX V8 regular expression functions */
+
+#ifdef SUNOS
+# undef REGEX
+# undef REGEXP
+# include <malloc.h>
+typedef void (*sig_t)__P((int));
+# ifdef __GNUC__
+/*
+ * Broken hdrs.
+ */
+extern char    *getenv		__P((const char *));
+extern int	fprintf		__P((FILE *, const char *, ...));
+extern int	sigsetmask	__P((int));
+extern int	sigblock	__P((int));
+extern int	ioctl		__P((int, int, void *));
+extern int	fputc		__P((int, FILE *));
+extern int	fgetc		__P((FILE *));
+extern int	fflush		__P((FILE *));
+extern int	tolower		__P((int));
+extern int	toupper		__P((int));
+extern int	errno, sys_nerr;
+extern char	*sys_errlist[];
+extern void	perror		__P((const char *));
+extern int	read		__P((int, const char*, int));
+#  include <string.h>
+#  define strerror(e)	sys_errlist[e]
+# endif
+# ifdef SABER
+extern ptr_t    memcpy		__P((ptr_t, const ptr_t, size_t));
+extern ptr_t    memset		__P((ptr_t, int, size_t));
+# endif
+extern char    *fgetline	__P((FILE *, int *));
+#endif
+
+#endif /* _h_sys */
diff --git a/lib/libedit/term.c b/lib/libedit/term.c
new file mode 100644
index 00000000000..061eb38ce22
--- /dev/null
+++ b/lib/libedit/term.c
@@ -0,0 +1,1457 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)term.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * term.c: Editor/termcap-curses interface
+ *	   We have to declare a static variable here, since the
+ *	   termcap putchar routine does not take an argument!
+ */
+#include "sys.h"
+#include <stdio.h>
+#include <signal.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "termcap.h"	/* XXX: should be <termcap.h> */
+#include <sys/types.h>
+
+#include "el.h"
+
+/*
+ * IMPORTANT NOTE: these routines are allowed to look at the current screen
+ * and the current possition assuming that it is correct.  If this is not
+ * true, then the update will be WRONG!  This is (should be) a valid
+ * assumption...
+ */
+
+#define TC_BUFSIZE 2048
+
+#define GoodStr(a) (el->el_term.t_str[a] != NULL && \
+		    el->el_term.t_str[a][0] != '\0')
+#define Str(a) el->el_term.t_str[a]
+#define Val(a) el->el_term.t_val[a]
+
+#ifdef notdef
+private struct {
+    char   *b_name;
+    int     b_rate;
+} baud_rate[] = {
+#ifdef B0
+    { "0", B0 },
+#endif
+#ifdef B50
+    { "50", B50 },
+#endif
+#ifdef B75
+    { "75", B75 },
+#endif
+#ifdef B110
+    { "110", B110 },
+#endif
+#ifdef B134
+    { "134", B134 },
+#endif
+#ifdef B150
+    { "150", B150 },
+#endif
+#ifdef B200
+    { "200", B200 },
+#endif
+#ifdef B300
+    { "300", B300 },
+#endif
+#ifdef B600
+    { "600", B600 },
+#endif
+#ifdef B900
+    { "900", B900 },
+#endif
+#ifdef B1200
+    { "1200", B1200 },
+#endif
+#ifdef B1800
+    { "1800", B1800 },
+#endif
+#ifdef B2400
+    { "2400", B2400 },
+#endif
+#ifdef B3600
+    { "3600", B3600 },
+#endif
+#ifdef B4800
+    { "4800", B4800 },
+#endif
+#ifdef B7200
+    { "7200", B7200 },
+#endif
+#ifdef B9600
+    { "9600", B9600 },
+#endif
+#ifdef EXTA
+    { "19200", EXTA },
+#endif
+#ifdef B19200
+    { "19200", B19200 },
+#endif
+#ifdef EXTB
+    { "38400", EXTB },
+#endif
+#ifdef B38400
+    { "38400", B38400 },
+#endif
+    { NULL, 0 }
+};
+#endif
+
+private struct termcapstr {
+    char   *name;
+    char   *long_name;
+} tstr[] = {
+
+#define T_al	0
+    {	"al",	"add new blank line"		},
+#define T_bl	1
+    {	"bl",	"audible bell"			},
+#define T_cd	2
+    {	"cd",	"clear to bottom"		},
+#define T_ce	3
+    {	"ce",	"clear to end of line"		},
+#define T_ch	4
+    {	"ch",	"cursor to horiz pos"		},
+#define T_cl	5
+    {	"cl",	"clear screen"			},
+#define	T_dc	6
+    {	"dc",	"delete a character"		},
+#define	T_dl	7
+    {	"dl",	"delete a line"		 	},
+#define	T_dm	8
+    {	"dm",	"start delete mode"		},
+#define	T_ed	9
+    {	"ed",	"end delete mode"		},
+#define	T_ei	10
+    {	"ei",	"end insert mode"		},
+#define	T_fs	11
+    {	"fs",	"cursor from status line"	},
+#define	T_ho	12
+    {	"ho",	"home cursor"			},
+#define	T_ic	13
+    {	"ic",	"insert character"		},
+#define	T_im	14 
+    {	"im",	"start insert mode"		},
+#define	T_ip	15
+    {	"ip",	"insert padding"		},
+#define	T_kd	16
+    {	"kd",	"sends cursor down"		},
+#define	T_kl	17
+    {	"kl",	"sends cursor left"		},
+#define T_kr	18
+    {	"kr",	"sends cursor right"		},
+#define T_ku	19
+    {	"ku",	"sends cursor up"		},
+#define T_md	20
+    {	"md",	"begin bold"			},
+#define T_me	21
+    {	"me",	"end attributes"		},
+#define T_nd	22
+    {	"nd",	"non destructive space"	 	},
+#define T_se	23
+    {	"se",	"end standout"			},
+#define T_so	24
+    {	"so",	"begin standout"		},
+#define T_ts	25
+    {	"ts",	"cursor to status line"	 	},
+#define T_up	26
+    {	"up",	"cursor up one"		 	},
+#define T_us	27
+    {	"us",	"begin underline"		},
+#define T_ue	28
+    {	"ue",	"end underline"		 	},
+#define T_vb	29
+    {	"vb",	"visible bell"			},
+#define T_DC	30
+    {	"DC",	"delete multiple chars"	 	},
+#define T_DO	31
+    {	"DO",	"cursor down multiple"		},
+#define T_IC	32
+    {	"IC",	"insert multiple chars"	 	},
+#define T_LE	33
+    {	"LE",	"cursor left multiple"		},
+#define T_RI	34
+    {	"RI",	"cursor right multiple"	 	},
+#define T_UP	35
+    {	"UP",	"cursor up multiple"		},
+#define T_str	36
+    {	NULL,   NULL			 	}
+};
+
+private struct termcapval {
+    char   *name;
+    char   *long_name;
+} tval[] = {
+#define T_pt	0
+    {	"pt",	"has physical tabs"	},
+#define T_li	1
+    {	"li",	"Number of lines"	},
+#define T_co	2
+    {	"co",	"Number of columns"	},
+#define T_km	3
+    {	"km",	"Has meta key"		},
+#define T_xt	4
+    {	"xt",	"Tab chars destructive" },
+#define T_MT	5
+    {	"MT",	"Has meta key"		},	/* XXX? */
+#define T_val	6
+    {	NULL, 	NULL,			}
+};
+
+/* do two or more of the attributes use me */
+
+private	void	term_rebuffer_display	__P((EditLine *));
+private	void	term_free_display	__P((EditLine *));
+private	void	term_alloc_display	__P((EditLine *));
+private	void	term_alloc		__P((EditLine *,
+					     struct termcapstr *, char *)); 
+private void	term_init_arrow		__P((EditLine *));
+private void	term_reset_arrow	__P((EditLine *));
+
+
+private FILE *term_outfile = NULL;	/* XXX: How do we fix that? */
+
+
+/* term_setflags():
+ *	Set the terminal capability flags
+ */
+private void
+term_setflags(el)
+    EditLine *el;
+{
+    EL_FLAGS = 0;
+    if (el->el_tty.t_tabs) 
+	EL_FLAGS |= (Val(T_pt) && !Val(T_xt)) ? TERM_CAN_TAB : 0;
+
+    EL_FLAGS |= (Val(T_km) || Val(T_MT)) ? TERM_HAS_META : 0;
+    EL_FLAGS |= GoodStr(T_ce) ? TERM_CAN_CEOL : 0;
+    EL_FLAGS |= (GoodStr(T_dc) || GoodStr(T_DC)) ? TERM_CAN_DELETE : 0;
+    EL_FLAGS |= (GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC)) ?
+		 TERM_CAN_INSERT : 0;
+    EL_FLAGS |= (GoodStr(T_up) || GoodStr(T_UP))  ? TERM_CAN_UP : 0;
+
+    if (GoodStr(T_me) && GoodStr(T_ue))
+	EL_FLAGS |= (strcmp(Str(T_me), Str(T_ue)) == 0) ? TERM_CAN_ME : 0;
+    else
+	EL_FLAGS &= ~TERM_CAN_ME;
+    if (GoodStr(T_me) && GoodStr(T_se))
+	EL_FLAGS |= (strcmp(Str(T_me), Str(T_se)) == 0) ? TERM_CAN_ME : 0;
+
+
+#ifdef DEBUG_SCREEN
+    if (!EL_CAN_UP) {
+	(void) fprintf(el->el_errfile, "WARNING: Your terminal cannot move up.\n");
+	(void) fprintf(el->el_errfile, "Editing may be odd for long lines.\n");
+    }
+    if (!EL_CAN_CEOL)
+	(void) fprintf(el->el_errfile, "no clear EOL capability.\n");
+    if (!EL_CAN_DELETE)
+	(void) fprintf(el->el_errfile, "no delete char capability.\n");
+    if (!EL_CAN_INSERT)
+	(void) fprintf(el->el_errfile, "no insert char capability.\n");
+#endif /* DEBUG_SCREEN */
+}
+
+
+/* term_init():
+ *	Initialize the terminal stuff
+ */
+protected int
+term_init(el)
+    EditLine *el;
+{
+    el->el_term.t_buf = (char *)  el_malloc(TC_BUFSIZE);
+    el->el_term.t_cap = (char *)  el_malloc(TC_BUFSIZE);
+    el->el_term.t_fkey = (fkey_t *) el_malloc(4 * sizeof(fkey_t));
+    el->el_term.t_loc = 0;
+    el->el_term.t_str = (char **) el_malloc(T_str * sizeof(char*));
+    (void) memset(el->el_term.t_str, 0, T_str * sizeof(char*));
+    el->el_term.t_val = (int *)   el_malloc(T_val * sizeof(int));
+    (void) memset(el->el_term.t_val, 0, T_val * sizeof(char*));
+    term_outfile = el->el_outfile;
+    (void) term_set(el, NULL);
+    term_init_arrow(el);
+    return 0;
+}
+
+/* term_end():
+ *	Clean up the terminal stuff
+ */
+protected void
+term_end(el)
+    EditLine *el;
+{
+    el_free((ptr_t) el->el_term.t_buf);
+    el->el_term.t_buf = NULL;
+    el_free((ptr_t) el->el_term.t_cap);
+    el->el_term.t_cap = NULL;
+    el->el_term.t_loc = 0;
+    el_free((ptr_t) el->el_term.t_str);
+    el->el_term.t_str = NULL;
+    el_free((ptr_t) el->el_term.t_val);
+    el->el_term.t_val = NULL;
+    term_free_display(el);
+}
+
+
+/* term_alloc():
+ *	Maintain a string pool for termcap strings
+ */
+private void
+term_alloc(el, t, cap)
+    EditLine *el;
+    struct termcapstr *t;
+    char   *cap;
+{
+    char    termbuf[TC_BUFSIZE];
+    int     tlen, clen;
+    char    **tlist = el->el_term.t_str;
+    char    **tmp, **str = &tlist[t - tstr];
+
+    if (cap == NULL || *cap == '\0') {
+	*str = NULL;
+	return;
+    }
+    else
+	clen = strlen(cap);
+
+    tlen  = *str == NULL ? 0 : strlen(*str);
+
+    /*
+     * New string is shorter; no need to allocate space
+     */
+    if (clen <= tlen) {
+	(void) strcpy(*str, cap);
+	return;
+    }
+
+    /*
+     * New string is longer; see if we have enough space to append
+     */
+    if (el->el_term.t_loc + 3 < TC_BUFSIZE) {
+	(void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap);
+	el->el_term.t_loc += clen + 1;	/* one for \0 */
+	return;
+    }
+
+    /*
+     * Compact our buffer; no need to check compaction, cause we know it
+     * fits...
+     */
+    tlen = 0;
+    for (tmp = tlist; tmp < &tlist[T_str]; tmp++)
+	if (*tmp != NULL && *tmp != '\0' && *tmp != *str) {
+	    char   *ptr;
+
+	    for (ptr = *tmp; *ptr != '\0'; termbuf[tlen++] = *ptr++)
+		continue;
+	    termbuf[tlen++] = '\0';
+	}
+    memcpy(el->el_term.t_buf, termbuf, TC_BUFSIZE);
+    el->el_term.t_loc = tlen;
+    if (el->el_term.t_loc + 3 >= TC_BUFSIZE) {
+	(void) fprintf(el->el_errfile, "Out of termcap string space.\n");
+	return;
+    }
+    (void) strcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap);
+    el->el_term.t_loc += clen + 1;		/* one for \0 */
+    return;
+} /* end term_alloc */
+
+
+/* term_rebuffer_display():
+ *	Rebuffer the display after the screen changed size
+ */
+private void
+term_rebuffer_display(el)
+    EditLine *el;
+{
+    coord_t *c = &el->el_term.t_size;
+
+    term_free_display(el);
+
+    /* make this public, -1 to avoid wraps */
+    c->h = Val(T_co) - 1;
+    c->v = (EL_BUFSIZ * 4) / c->h + 1;
+
+    term_alloc_display(el);
+} /* end term_rebuffer_display */
+
+
+/* term_alloc_display():
+ *	Allocate a new display.
+ */
+private void
+term_alloc_display(el)
+    EditLine *el;
+{
+    int i;
+    char  **b;
+    coord_t *c = &el->el_term.t_size;
+
+    b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1)));
+    for (i = 0; i < c->v; i++)
+	b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1)));
+    b[c->v] = NULL;
+    el->el_display = b;
+
+    b = (char **) el_malloc((size_t) (sizeof(char *) * (c->v + 1)));
+    for (i = 0; i < c->v; i++)
+	b[i] = (char *) el_malloc((size_t) (sizeof(char) * (c->h + 1)));
+    b[c->v] = NULL;
+    el->el_vdisplay = b;
+
+} /* end term_alloc_display */
+
+
+/* term_free_display():
+ *	Free the display buffers
+ */
+private void
+term_free_display(el)
+    EditLine *el;
+{
+    char  **b;
+    char  **bufp;
+
+    b = el->el_display;
+    el->el_display = NULL;
+    if (b != NULL) {
+	for (bufp = b; *bufp != NULL; bufp++)
+	    el_free((ptr_t) *bufp);
+	el_free((ptr_t) b);
+    }
+    b = el->el_vdisplay;
+    el->el_vdisplay = NULL;
+    if (b != NULL) {
+	for (bufp = b; *bufp != NULL; bufp++)
+	    el_free((ptr_t) * bufp);
+	el_free((ptr_t) b);
+    }
+} /* end term_free_display */
+
+
+/* term_move_to_line():
+ *	move to line <where> (first line == 0)
+ * 	as efficiently as possible
+ */
+protected void
+term_move_to_line(el, where)
+    EditLine *el;
+    int     where;		
+{
+    int     del, i;
+
+    if (where == el->el_cursor.v)
+	return;
+
+    if (where > el->el_term.t_size.v) {
+#ifdef DEBUG_SCREEN
+	(void) fprintf(el->el_errfile, 
+		"term_move_to_line: where is ridiculous: %d\r\n", where);
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if ((del = where - el->el_cursor.v) > 0) {
+	if ((del > 1) && GoodStr(T_DO))
+	    (void) tputs(tgoto(Str(T_DO), del, del), del, term__putc);
+	else {
+	    for (i = 0; i < del; i++)
+		term__putc('\n');
+	    el->el_cursor.h = 0;	/* because the \n will become \r\n */
+	}
+    }
+    else {			/* del < 0 */
+	if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up)))
+	    (void) tputs(tgoto(Str(T_UP), -del, -del), -del, term__putc);
+	else {
+	    if (GoodStr(T_up))
+		for (i = 0; i < -del; i++)
+		    (void) tputs(Str(T_up), 1, term__putc);
+	}
+    }
+    el->el_cursor.v = where;		/* now where is here */
+} /* end term_move_to_line */
+
+
+/* term_move_to_char():
+ *	Move to the character position specified
+ */
+protected void
+term_move_to_char(el, where)
+    EditLine *el;
+    int     where;
+{
+    int     del, i;
+
+mc_again:
+    if (where == el->el_cursor.h)
+	return;
+
+    if (where > (el->el_term.t_size.h + 1)) {
+#ifdef DEBUG_SCREEN
+	(void) fprintf(el->el_errfile, 
+		"term_move_to_char: where is riduculous: %d\r\n", where);
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (!where) {		/* if where is first column */
+	term__putc('\r');	/* do a CR */
+	el->el_cursor.h = 0;
+	return;
+    }
+
+    del = where - el->el_cursor.h;
+
+    if ((del < -4 || del > 4) && GoodStr(T_ch))
+	/* go there directly */
+	(void) tputs(tgoto(Str(T_ch), where, where), where, term__putc);
+    else {
+	if (del > 0) {		/* moving forward */
+	    if ((del > 4) && GoodStr(T_RI))
+		(void) tputs(tgoto(Str(T_RI), del, del), del, term__putc);
+	    else {
+		if (EL_CAN_TAB) {	/* if I can do tabs, use them */
+		    if ((el->el_cursor.h & 0370) != (where & 0370)) {
+			/* if not within tab stop */
+			for (i = (el->el_cursor.h & 0370); 
+			     i < (where & 0370); i += 8)
+			    term__putc('\t');	/* then tab over */
+			el->el_cursor.h = where & 0370;
+		    }
+		}
+		/* it's usually cheaper to just write the chars, so we do. */
+
+		/* NOTE THAT term_overwrite() WILL CHANGE el->el_cursor.h!!! */
+		term_overwrite(el, 
+			&el->el_display[el->el_cursor.v][el->el_cursor.h], 
+		        where - el->el_cursor.h);
+
+	    }
+	}
+	else {			/* del < 0 := moving backward */
+	    if ((-del > 4) && GoodStr(T_LE))
+		(void) tputs(tgoto(Str(T_LE), -del, -del), -del, term__putc);
+	    else {		/* can't go directly there */
+		/* if the "cost" is greater than the "cost" from col 0 */
+		if (EL_CAN_TAB ? (-del > ((where >> 3) + (where & 07)))
+		    : (-del > where)) {
+		    term__putc('\r');	/* do a CR */
+		    el->el_cursor.h = 0;
+		    goto mc_again;	/* and try again */
+		}
+		for (i = 0; i < -del; i++)
+		    term__putc('\b');
+	    }
+	}
+    }
+    el->el_cursor.h = where;		/* now where is here */
+} /* end term_move_to_char */
+
+
+/* term_overwrite():
+ *	Overstrike num characters
+ */
+protected void
+term_overwrite(el, cp, n)
+    EditLine *el;
+    char *cp;
+    int n;
+{
+    if (n <= 0)
+	return;			/* catch bugs */
+
+    if (n > (el->el_term.t_size.h + 1)) {
+#ifdef DEBUG_SCREEN
+	(void) fprintf(el->el_errfile, "term_overwrite: n is riduculous: %d\r\n", n);
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    do {
+	term__putc(*cp++);
+	el->el_cursor.h++;
+    } while (--n);
+} /* end term_overwrite */
+
+
+/* term_deletechars():
+ *	Delete num characters
+ */
+protected void
+term_deletechars(el, num)
+    EditLine *el;
+    int     num;
+{
+    if (num <= 0)
+	return;
+
+    if (!EL_CAN_DELETE) {
+#ifdef DEBUG_EDIT
+	(void) fprintf(el->el_errfile, "   ERROR: cannot delete   \n");
+#endif /* DEBUG_EDIT */
+	return;
+    }
+
+    if (num > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+	(void) fprintf(el->el_errfile, 
+		"term_deletechars: num is riduculous: %d\r\n", num);
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (GoodStr(T_DC))		/* if I have multiple delete */
+	if ((num > 1) || !GoodStr(T_dc)) {	/* if dc would be more expen. */
+	    (void) tputs(tgoto(Str(T_DC), num, num), num, term__putc);
+	    return;
+	}
+
+    if (GoodStr(T_dm))		/* if I have delete mode */
+	(void) tputs(Str(T_dm), 1, term__putc);
+
+    if (GoodStr(T_dc))		/* else do one at a time */
+	while (num--)
+	    (void) tputs(Str(T_dc), 1, term__putc);
+
+    if (GoodStr(T_ed))		/* if I have delete mode */
+	(void) tputs(Str(T_ed), 1, term__putc);
+} /* end term_deletechars */
+
+
+/* term_insertwrite():
+ *	Puts terminal in insert character mode or inserts num 
+ *	characters in the line 
+ */
+protected void
+term_insertwrite(el, cp, num)	
+    EditLine *el;
+    char *cp;
+    int num;
+{
+    if (num <= 0)
+	return;
+    if (!EL_CAN_INSERT) {
+#ifdef DEBUG_EDIT
+	(void) fprintf(el->el_errfile, "   ERROR: cannot insert   \n");
+#endif /* DEBUG_EDIT */
+	return;
+    }
+
+    if (num > el->el_term.t_size.h) {
+#ifdef DEBUG_SCREEN
+	(void) fprintf(el->el_errfile, "StartInsert: num is riduculous: %d\r\n", num);
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (GoodStr(T_IC))		/* if I have multiple insert */
+	if ((num > 1) || !GoodStr(T_ic)) {	/* if ic would be more expen. */
+	    (void) tputs(tgoto(Str(T_IC), num, num), num, term__putc);
+	    term_overwrite(el, cp, num);	/* this updates el_cursor.h */
+	    return;
+	}
+
+    if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */
+	(void) tputs(Str(T_im), 1, term__putc);
+
+	el->el_cursor.h += num;
+	do 
+	    term__putc(*cp++);
+	while (--num);
+
+	if (GoodStr(T_ip))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ip), 1, term__putc);
+
+	(void) tputs(Str(T_ei), 1, term__putc);
+	return;
+    }
+
+    do {
+	if (GoodStr(T_ic))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ic), 1, term__putc);	/* insert a char */
+
+	term__putc(*cp++);
+
+	el->el_cursor.h++;
+
+	if (GoodStr(T_ip))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ip), 1, term__putc);/* pad the inserted char */
+
+    } while (--num);
+} /* end term_insertwrite */
+
+
+/* term_clear_EOL():
+ *	clear to end of line.  There are num characters to clear 
+ */
+protected void
+term_clear_EOL(el, num)	
+    EditLine *el;
+    int     num;
+{
+    int i;
+
+    if (EL_CAN_CEOL && GoodStr(T_ce))
+	(void) tputs(Str(T_ce), 1, term__putc);
+    else {
+	for (i = 0; i < num; i++)
+	    term__putc(' ');
+	el->el_cursor.h += num;		/* have written num spaces */
+    }
+} /* end term_clear_EOL */
+
+
+/* term_clear_screen():
+ *	Clear the screen 
+ */
+protected void
+term_clear_screen(el)
+    EditLine *el;
+{				/* clear the whole screen and home */
+    if (GoodStr(T_cl))
+	/* send the clear screen code */
+	(void) tputs(Str(T_cl), Val(T_li), term__putc);
+    else if (GoodStr(T_ho) && GoodStr(T_cd)) {
+	(void) tputs(Str(T_ho), Val(T_li), term__putc);	/* home */
+	/* clear to bottom of screen */
+	(void) tputs(Str(T_cd), Val(T_li), term__putc);
+    }
+    else {
+	term__putc('\r');
+	term__putc('\n');
+    }
+} /* end term_clear_screen */
+
+
+/* term_beep():
+ *	Beep the way the terminal wants us
+ */
+protected void
+term_beep(el)
+    EditLine *el;
+{
+    if (GoodStr(T_vb))
+	(void) tputs(Str(T_vb), 1, term__putc);	/* visible bell */
+    else if (GoodStr(T_bl))
+	/* what termcap says we should use */
+	(void) tputs(Str(T_bl), 1, term__putc);
+    else
+	term__putc('\007');	/* an ASCII bell; ^G */
+} /* end term_beep */
+
+
+#ifdef notdef
+/* term_clear_to_bottom():
+ *	Clear to the bottom of the screen
+ */
+protected void
+term_clear_to_bottom(el)
+    EditLine *el;
+{
+    if (GoodStr(T_cd))
+	(void) tputs(Str(T_cd), Val(T_li), term__putc);
+    else if (GoodStr(T_ce))
+	(void) tputs(Str(T_ce), Val(T_li), term__putc);
+} /* end term_clear_to_bottom */
+#endif
+
+
+/* term_set():
+ *	Read in the terminal capabilities from the requested terminal
+ */
+protected int
+term_set(el, term)
+    EditLine *el;
+    char *term;
+{
+    int i;
+    char    buf[TC_BUFSIZE];
+    char   *area;
+    struct termcapstr *t;
+    sigset_t oset, nset;
+    int     lins, cols;
+
+    (void) sigemptyset(&nset);
+    (void) sigaddset(&nset, SIGWINCH);
+    (void) sigprocmask(SIG_BLOCK, &nset, &oset);
+
+    area = buf;
+
+
+    if (term == NULL)
+	term = getenv("TERM");
+
+    if (!term || !term[0])
+	term = "dumb";
+
+    memset(el->el_term.t_cap, 0, TC_BUFSIZE);
+
+    i = tgetent(el->el_term.t_cap, term);
+
+    if (i <= 0) {
+	if (i == -1) 
+	    (void) fprintf(el->el_errfile, "Cannot read termcap database;\n");
+	else if (i == 0) 
+	    (void) fprintf(el->el_errfile, 
+			   "No entry for terminal type \"%s\";\n", term);
+	(void) fprintf(el->el_errfile, "using dumb terminal settings.\n");
+	Val(T_co) = 80;		/* do a dumb terminal */
+	Val(T_pt) = Val(T_km) = Val(T_li) = 0;
+	Val(T_xt) = Val(T_MT);
+	for (t = tstr; t->name != NULL; t++)
+	    term_alloc(el, t, NULL);
+    }
+    else {
+	/* Can we tab */
+	Val(T_pt) = tgetflag("pt");
+	Val(T_xt) = tgetflag("xt");
+	/* do we have a meta? */
+	Val(T_km) = tgetflag("km");
+	Val(T_MT) = tgetflag("MT");
+	/* Get the size */
+	Val(T_co) = tgetnum("co");
+	Val(T_li) = tgetnum("li");
+	for (t = tstr; t->name != NULL; t++)
+	    term_alloc(el, t, tgetstr(t->name, &area));
+    }
+
+    if (Val(T_co) < 2)
+	Val(T_co) = 80;		/* just in case */
+    if (Val(T_li) < 1)
+	Val(T_li) = 24;
+
+    el->el_term.t_size.v = Val(T_co);
+    el->el_term.t_size.h = Val(T_li);
+
+    term_setflags(el);
+
+    (void) term_get_size(el, &lins, &cols);/* get the correct window size */
+    term_change_size(el, lins, cols);
+    (void) sigprocmask(SIG_SETMASK, &oset, NULL);
+    term_bind_arrow(el);
+    return 0;
+} /* end term_set */
+
+
+/* term_get_size():
+ *	Return the new window size in lines and cols, and
+ *	true if the size was changed. 
+ */
+protected int
+term_get_size(el, lins, cols)
+    EditLine *el;
+    int    *lins, *cols;
+{
+
+    *cols = Val(T_co);
+    *lins = Val(T_li);
+
+#ifdef TIOCGWINSZ
+    {
+	struct winsize ws;
+	if (ioctl(el->el_infd, TIOCGWINSZ, (ioctl_t) &ws) != -1) {
+	    if (ws.ws_col)
+		*cols = ws.ws_col;
+	    if (ws.ws_row)
+		*lins = ws.ws_row;
+	}
+    }
+#endif
+#ifdef TIOCGSIZE
+    {
+	struct ttysize ts;
+	if (ioctl(el->el_infd, TIOCGSIZE, (ioctl_t) &ts) != -1) {
+	    if (ts.ts_cols)
+		*cols = ts.ts_cols;
+	    if (ts.ts_lines)
+		*lins = ts.ts_lines;
+	}
+    }
+#endif
+    return (Val(T_co) != *cols || Val(T_li) != *lins);
+} /* end term_get_size */
+
+
+/* term_change_size():
+ *	Change the size of the terminal
+ */
+protected void
+term_change_size(el, lins, cols)
+    EditLine *el;
+    int     lins, cols;
+{
+    /*
+     * Just in case
+     */
+    Val(T_co) = (cols < 2) ? 80 : cols;
+    Val(T_li) = (lins < 1) ? 24 : lins;
+
+    term_rebuffer_display(el);		/* re-make display buffers */
+    re_clear_display(el);
+} /* end term_change_size */
+
+
+/* term_init_arrow():
+ *	Initialize the arrow key bindings from termcap
+ */
+private void
+term_init_arrow(el)
+    EditLine *el;
+{
+    fkey_t *arrow = el->el_term.t_fkey;
+
+    arrow[A_K_DN].name    = "down";
+    arrow[A_K_DN].key	  = T_kd;
+    arrow[A_K_DN].fun.cmd = ED_NEXT_HISTORY;
+    arrow[A_K_DN].type    = XK_CMD;
+
+    arrow[A_K_UP].name    = "up";
+    arrow[A_K_UP].key	  = T_ku;
+    arrow[A_K_UP].fun.cmd = ED_PREV_HISTORY;
+    arrow[A_K_UP].type    = XK_CMD;
+
+    arrow[A_K_LT].name    = "left";
+    arrow[A_K_LT].key	  = T_kl;
+    arrow[A_K_LT].fun.cmd = ED_PREV_CHAR;
+    arrow[A_K_LT].type    = XK_CMD;
+
+    arrow[A_K_RT].name    = "right";
+    arrow[A_K_RT].key	  = T_kr;
+    arrow[A_K_RT].fun.cmd = ED_NEXT_CHAR;
+    arrow[A_K_RT].type    = XK_CMD;
+
+}
+
+
+/* term_reset_arrow():
+ *	Reset arrow key bindings
+ */
+private void
+term_reset_arrow(el) 
+    EditLine *el;
+{
+    fkey_t *arrow = el->el_term.t_fkey;
+    static char strA[] = {033, '[', 'A', '\0'};
+    static char strB[] = {033, '[', 'B', '\0'};
+    static char strC[] = {033, '[', 'C', '\0'};
+    static char strD[] = {033, '[', 'D', '\0'};
+    static char stOA[] = {033, 'O', 'A', '\0'};
+    static char stOB[] = {033, 'O', 'B', '\0'};
+    static char stOC[] = {033, 'O', 'C', '\0'};
+    static char stOD[] = {033, 'O', 'D', '\0'};
+
+    key_add(el, strA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+    key_add(el, strB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+    key_add(el, strC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+    key_add(el, strD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+    key_add(el, stOA, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+    key_add(el, stOB, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+    key_add(el, stOC, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+    key_add(el, stOD, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+
+    if (el->el_map.type == MAP_VI) {
+	key_add(el, &strA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	key_add(el, &strB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	key_add(el, &strC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	key_add(el, &strD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+	key_add(el, &stOA[1], &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	key_add(el, &stOB[1], &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	key_add(el, &stOC[1], &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	key_add(el, &stOD[1], &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+    }
+}
+
+
+/* term_set_arrow():
+ *	Set an arrow key binding
+ */
+protected int
+term_set_arrow(el, name, fun, type)
+    EditLine *el;
+    char *name;
+    key_value_t *fun;
+    int type;
+{
+    fkey_t *arrow = el->el_term.t_fkey;
+    int i;
+
+    for (i = 0; i < A_K_NKEYS; i++)
+	if (strcmp(name, arrow[i].name) == 0) {
+	    arrow[i].fun  = *fun;
+	    arrow[i].type = type;
+	    return 0;
+	}
+    return -1;
+}
+
+
+/* term_clear_arrow():
+ *	Clear an arrow key binding
+ */
+protected int
+term_clear_arrow(el, name)
+    EditLine *el;
+    char *name;
+{
+    fkey_t *arrow = el->el_term.t_fkey;
+    int i;
+
+    for (i = 0; i < A_K_NKEYS; i++)
+	if (strcmp(name, arrow[i].name) == 0) {
+	    arrow[i].type = XK_NOD;
+	    return 0;
+	}
+    return -1;
+}
+
+
+/* term_print_arrow():
+ *	Print the arrow key bindings
+ */
+protected void
+term_print_arrow(el, name)
+    EditLine *el;
+    char *name;
+{
+    int i;
+    fkey_t *arrow = el->el_term.t_fkey;
+
+    for (i = 0; i < A_K_NKEYS; i++)
+	if (*name == '\0' || strcmp(name, arrow[i].name) == 0)
+	    if (arrow[i].type != XK_NOD)
+		key_kprint(el, arrow[i].name, &arrow[i].fun, arrow[i].type);
+}
+
+
+/* term_bind_arrow():
+ *	Bind the arrow keys
+ */
+protected void
+term_bind_arrow(el)
+    EditLine *el;
+{
+    el_action_t *map, *dmap;
+    int     i, j;
+    char   *p;
+    fkey_t *arrow = el->el_term.t_fkey;
+
+    /* Check if the components needed are initialized */
+    if (el->el_term.t_buf == NULL || el->el_map.key == NULL)
+	return;
+
+    map  = el->el_map.type == MAP_VI ? el->el_map.alt : el->el_map.key;
+    dmap = el->el_map.type == MAP_VI ? el->el_map.vic : el->el_map.emacs;
+
+    term_reset_arrow(el);
+
+    for (i = 0; i < 4; i++) {
+	p = el->el_term.t_str[arrow[i].key];
+	if (p && *p) {
+	    j = (unsigned char) *p;
+	    /*
+	     * Assign the arrow keys only if:
+	     *
+	     * 1. They are multi-character arrow keys and the user 
+	     *    has not re-assigned the leading character, or 
+	     *    has re-assigned the leading character to be
+	     *	  ED_SEQUENCE_LEAD_IN
+	     * 2. They are single arrow keys pointing to an unassigned key.
+	     */
+	    if (arrow[i].type == XK_NOD)
+		key_clear(el, map, p);
+	    else {
+		if (p[1] && (dmap[j] == map[j] || 
+			     map[j] == ED_SEQUENCE_LEAD_IN)) {
+		    key_add(el, p, &arrow[i].fun, arrow[i].type);
+		    map[j] = ED_SEQUENCE_LEAD_IN;
+		}
+		else if (map[j] == ED_UNASSIGNED) {
+		    key_clear(el, map, p);
+		    if (arrow[i].type == XK_CMD)
+			map[j] = arrow[i].fun.cmd;
+		    else
+			key_add(el, p, &arrow[i].fun, arrow[i].type);
+		}
+	    }
+	}
+    }
+}
+
+
+/* term__putc():
+ *	Add a character
+ */
+protected void
+term__putc(c)
+    int c;
+{
+    (void) fputc(c, term_outfile);
+} /* end term__putc */
+
+
+/* term__flush():
+ *	Flush output
+ */
+protected void
+term__flush()
+{
+    (void) fflush(term_outfile);
+} /* end term__flush */
+
+
+/* term_telltc():
+ *	Print the current termcap characteristics
+ */
+protected int
+/*ARGSUSED*/
+term_telltc(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    struct termcapstr *t;
+    char **ts;
+    char upbuf[EL_BUFSIZ];
+
+    (void) fprintf(el->el_outfile, "\n\tYour terminal has the\n");
+    (void) fprintf(el->el_outfile, "\tfollowing characteristics:\n\n");
+    (void) fprintf(el->el_outfile, "\tIt has %d columns and %d lines\n",
+	    Val(T_co), Val(T_li));
+    (void) fprintf(el->el_outfile, 
+		   "\tIt has %s meta key\n", EL_HAS_META ? "a" : "no");
+    (void) fprintf(el->el_outfile, 
+		   "\tIt can%suse tabs\n", EL_CAN_TAB ? " " : "not ");
+#ifdef notyet
+    (void) fprintf(el->el_outfile, "\tIt %s automatic margins\n", 
+		   (T_Margin&MARGIN_AUTO)? "has": "does not have");
+    if (T_Margin & MARGIN_AUTO)
+	(void) fprintf(el->el_outfile, "\tIt %s magic margins\n", 
+			(T_Margin&MARGIN_MAGIC)?"has":"does not have");
+#endif
+
+    for (t = tstr, ts = el->el_term.t_str; t->name != NULL; t++, ts++)
+	(void) fprintf(el->el_outfile, "\t%25s (%s) == %s\n", t->long_name, 
+		       t->name, *ts && **ts ? 
+			key__decode_str(*ts, upbuf, "") : "(empty)");
+    (void) fputc('\n', el->el_outfile);
+    return 0;
+}
+
+
+/* term_settc():
+ *	Change the current terminal characteristics
+ */
+protected int
+/*ARGSUSED*/
+term_settc(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    struct termcapstr *ts;
+    struct termcapval *tv;
+    char   *what, *how;
+
+    if (argv == NULL || argv[1] == NULL || argv[2] == NULL)
+	return -1;
+
+    what = argv[1];
+    how = argv[2];
+
+    /*
+     * Do the strings first
+     */
+    for (ts = tstr; ts->name != NULL; ts++)
+	if (strcmp(ts->name, what) == 0)
+	    break;
+
+    if (ts->name != NULL) {
+	term_alloc(el, ts, how);
+	term_setflags(el);
+	return 0;
+    }
+
+    /*
+     * Do the numeric ones second
+     */
+    for (tv = tval; tv->name != NULL; tv++)
+	if (strcmp(tv->name, what) == 0)
+	    break;
+
+    if (tv->name != NULL) {
+	if (tv == &tval[T_pt] || tv == &tval[T_km] 
+#ifdef notyet
+	    || tv == &tval[T_am] || tv == &tval[T_xn]
+#endif
+	    ) {
+	    if (strcmp(how, "yes") == 0)
+		el->el_term.t_val[tv - tval] = 1;
+	    else if (strcmp(how, "no") == 0)
+		el->el_term.t_val[tv - tval] = 0;
+	    else {
+		(void) fprintf(el->el_errfile, "settc: Bad value `%s'.\n", how);
+		return -1;
+	    }
+	    term_setflags(el);
+	    term_change_size(el, Val(T_li), Val(T_co));
+	    return 0;
+	}
+	else {
+	    el->el_term.t_val[tv - tval] = atoi(how);
+	    el->el_term.t_size.v = Val(T_co);
+	    el->el_term.t_size.h = Val(T_li);
+	    if (tv == &tval[T_co] || tv == &tval[T_li])
+		term_change_size(el, Val(T_li), Val(T_co));
+	    return 0;
+	}
+    }
+    return -1;
+}
+
+
+/* term_echotc():
+ *	Print the termcap string out with variable substitution
+ */
+protected int
+/*ARGSUSED*/
+term_echotc(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    char   *cap, *scap;
+    int     arg_need, arg_cols, arg_rows;
+    int     verbose = 0, silent = 0;
+    char   *area;
+    static char *fmts = "%s\n", *fmtd = "%d\n";
+    struct termcapstr *t;
+    char    buf[TC_BUFSIZE];
+
+    area = buf;
+
+    if (argv == NULL || argv[1] == NULL)
+	return -1;
+    argv++;
+
+    if (argv[0][0] == '-') {
+	switch (argv[0][1]) {
+	case 'v':
+	    verbose = 1;
+	    break;
+	case 's':
+	    silent = 1;
+	    break;
+	default:
+	    /* stderror(ERR_NAME | ERR_TCUSAGE); */
+	    break;
+	}
+	argv++;
+    }
+    if (!*argv || *argv[0] == '\0')
+	return 0;
+    if (strcmp(*argv, "tabs") == 0) {
+	(void) fprintf(el->el_outfile, fmts, EL_CAN_TAB ? "yes" : "no");
+	return 0;
+    }
+    else if (strcmp(*argv, "meta") == 0) {
+	(void) fprintf(el->el_outfile, fmts, Val(T_km) ? "yes" : "no");
+	return 0;
+    }
+#ifdef notyet
+    else if (strcmp(*argv, "xn") == 0) {
+	(void) fprintf(el->el_outfile, fmts, T_Margin & MARGIN_MAGIC ? 
+			"yes" : "no");
+	return 0;
+    }
+    else if (strcmp(*argv, "am") == 0) {
+	(void) fprintf(el->el_outfile, fmts, T_Margin & MARGIN_AUTO ? 
+			"yes" : "no");
+	return 0;
+    }
+#endif
+    else if (strcmp(*argv, "baud") == 0) {
+#ifdef notdef
+	int     i;
+
+	for (i = 0; baud_rate[i].b_name != NULL; i++)
+	    if (el->el_tty.t_speed == baud_rate[i].b_rate) {
+		(void) fprintf(el->el_outfile, fmts, baud_rate[i].b_name);
+		return 0;
+	    }
+	(void) fprintf(el->el_outfile, fmtd, 0);
+#else
+	(void) fprintf(el->el_outfile, fmtd, el->el_tty.t_speed);
+#endif
+	return 0;
+    }
+    else if (strcmp(*argv, "rows") == 0 || strcmp(*argv, "lines") == 0) {
+	(void) fprintf(el->el_outfile, fmtd, Val(T_li));
+	return 0;
+    }
+    else if (strcmp(*argv, "cols") == 0) {
+	(void) fprintf(el->el_outfile, fmtd, Val(T_co));
+	return 0;
+    }
+
+    /* 
+     * Try to use our local definition first
+     */
+    scap = NULL;
+    for (t = tstr; t->name != NULL; t++)
+	if (strcmp(t->name, *argv) == 0) {
+	    scap = el->el_term.t_str[t - tstr];
+	    break;
+	}
+    if (t->name == NULL)
+	scap = tgetstr(*argv, &area);
+    if (!scap || scap[0] == '\0') {
+	if (!silent)
+	    (void) fprintf(el->el_errfile, 
+		"echotc: Termcap parameter `%s' not found.\n", *argv);
+	return -1;
+    }
+
+    /*
+     * Count home many values we need for this capability.
+     */
+    for (cap = scap, arg_need = 0; *cap; cap++)
+	if (*cap == '%')
+	    switch (*++cap) {
+	    case 'd':
+	    case '2':
+	    case '3':
+	    case '.':
+	    case '+':
+		arg_need++;
+		break;
+	    case '%':
+	    case '>':
+	    case 'i':
+	    case 'r':
+	    case 'n':
+	    case 'B':
+	    case 'D':
+		break;
+	    default:
+		/*
+		 * hpux has lot's of them...
+		 */
+		if (verbose)
+		    (void) fprintf(el->el_errfile, 
+			"echotc: Warning: unknown termcap %% `%c'.\n", *cap);
+		/* This is bad, but I won't complain */
+		break;
+	    }
+
+    switch (arg_need) {
+    case 0:
+	argv++;
+	if (*argv && *argv[0]) {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Extra argument `%s'.\n", *argv);
+	    return -1;
+	}
+	(void) tputs(scap, 1, term__putc);
+	break;
+    case 1:
+	argv++;
+	if (!*argv || *argv[0] == '\0') {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Missing argument.\n");
+	    return -1;
+	}
+	arg_cols = 0;
+	arg_rows = atoi(*argv);
+	argv++;
+	if (*argv && *argv[0]) {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Extra argument `%s'.\n", *argv);
+	    return -1;
+	}
+	(void) tputs(tgoto(scap, arg_cols, arg_rows), 1, term__putc);
+	break;
+    default:
+	/* This is wrong, but I will ignore it... */
+	if (verbose)
+	    (void) fprintf(el->el_errfile, 
+		"echotc: Warning: Too many required arguments (%d).\n", 
+		arg_need);
+	/*FALLTHROUGH*/
+    case 2:
+	argv++;
+	if (!*argv || *argv[0] == '\0') {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Missing argument.\n");
+	    return -1;
+	}
+	arg_cols = atoi(*argv);
+	argv++;
+	if (!*argv || *argv[0] == '\0') {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Missing argument.\n");
+	    return -1;
+	}
+	arg_rows = atoi(*argv);
+	argv++;
+	if (*argv && *argv[0]) {
+	    if (!silent)
+		(void) fprintf(el->el_errfile, 
+		    "echotc: Warning: Extra argument `%s'.\n", *argv);
+	    return -1;
+	}
+	(void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, term__putc);
+	break;
+    }
+    return 0;
+}
diff --git a/lib/libedit/term.h b/lib/libedit/term.h
new file mode 100644
index 00000000000..aa3cd68b2b7
--- /dev/null
+++ b/lib/libedit/term.h
@@ -0,0 +1,118 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)term.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.term.h: Termcap header
+ */
+#ifndef _h_el_term
+#define _h_el_term
+
+#include "histedit.h"
+
+typedef struct {	/* Symbolic function key bindings	*/
+    char       *name;	/* name of the key			*/
+    int		key;	/* Index in termcap table		*/
+    key_value_t fun;	/* Function bound to it			*/
+    int	        type;	/* Type of function			*/
+} fkey_t;
+
+typedef struct {
+    coord_t t_size;			/* # lines and cols	*/
+    bool_t  t_flags;
+#define TERM_CAN_INSERT		0x01	/* Has insert cap	*/
+#define TERM_CAN_DELETE		0x02	/* Has delete cap	*/
+#define TERM_CAN_CEOL		0x04	/* Has CEOL cap		*/
+#define TERM_CAN_TAB		0x08	/* Can use tabs		*/
+#define TERM_CAN_ME		0x10	/* Can turn all attrs.	*/
+#define TERM_CAN_UP		0x20	/* Can move up		*/
+#define TERM_HAS_META		0x40	/* Has a meta key	*/
+    char   *t_buf;			/* Termcap buffer	*/
+    int	    t_loc;			/* location used	*/
+    char  **t_str;			/* termcap strings	*/
+    int	   *t_val;			/* termcap values	*/
+    char   *t_cap;			/* Termcap buffer	*/
+    fkey_t *t_fkey;			/* Array of keys	*/
+} el_term_t;
+
+/*
+ * fKey indexes
+ */
+#define A_K_DN		0
+#define A_K_UP		1
+#define A_K_LT		2
+#define A_K_RT		3
+#define A_K_NKEYS	4
+
+protected void term_move_to_line	__P((EditLine *, int));
+protected void term_move_to_char	__P((EditLine *, int));
+protected void term_clear_EOL		__P((EditLine *, int));
+protected void term_overwrite		__P((EditLine *, char *, int));
+protected void term_insertwrite		__P((EditLine *, char *, int));
+protected void term_deletechars		__P((EditLine *, int));
+protected void term_clear_screen	__P((EditLine *));
+protected void term_beep		__P((EditLine *));
+protected void term_change_size		__P((EditLine *, int, int));
+protected int  term_get_size		__P((EditLine *, int *, int *));
+protected int  term_init		__P((EditLine *));
+protected void term_bind_arrow		__P((EditLine *));
+protected void term_print_arrow		__P((EditLine *, char *));
+protected int  term_clear_arrow		__P((EditLine *, char *));
+protected int  term_set_arrow		__P((EditLine *, char *, 
+					     key_value_t *, int));
+protected void term_end			__P((EditLine *));
+protected int  term_set			__P((EditLine *, char *));
+protected int  term_settc		__P((EditLine *, int, char **));
+protected int  term_telltc		__P((EditLine *, int, char **));
+protected int  term_echotc		__P((EditLine *, int, char **));
+
+protected void term__putc		__P((int));
+protected void term__flush		__P((void));
+
+/*
+ * Easy access macros
+ */
+#define EL_FLAGS	(el)->el_term.t_flags
+
+#define EL_CAN_INSERT	(EL_FLAGS & TERM_CAN_INSERT)
+#define EL_CAN_DELETE	(EL_FLAGS & TERM_CAN_DELETE)
+#define EL_CAN_CEOL	(EL_FLAGS & TERM_CAN_CEOL)
+#define EL_CAN_TAB	(EL_FLAGS & TERM_CAN_TAB)
+#define EL_CAN_ME	(EL_FLAGS & TERM_CAN_ME)
+#define EL_HAS_META	(EL_FLAGS & TERM_HAS_META)
+
+#endif /* _h_el_term */
diff --git a/lib/libedit/termcap.h b/lib/libedit/termcap.h
new file mode 100644
index 00000000000..4fd2cab0ec0
--- /dev/null
+++ b/lib/libedit/termcap.h
@@ -0,0 +1,52 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)termcap.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * termcap.h: I cannot find those in any include files...
+ */
+#ifndef _h_termcap
+#define _h_termcap
+
+int   tgetent	__P((char *, char *));
+char *tgetstr	__P((char *, char **));
+int   tgetflag	__P((char *));
+int   tgetnum	__P((char *));
+char *tgoto	__P((char *, int, int));
+char *tputs	__P((char *, int, void (*)(int)));
+
+#endif /* _h_termcap */
diff --git a/lib/libedit/tokenizer.c b/lib/libedit/tokenizer.c
new file mode 100644
index 00000000000..41095fa980f
--- /dev/null
+++ b/lib/libedit/tokenizer.c
@@ -0,0 +1,385 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)tokenizer.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * tokenize.c: Bourne shell like tokenizer
+ */
+#include "sys.h"
+#include <string.h>
+#include <stdlib.h>
+#include "tokenizer.h"
+
+typedef enum { Q_none, Q_single, Q_double, Q_one, Q_doubleone } quote_t;
+
+#define IFS "\t \n"
+
+#define TOK_KEEP	1
+#define TOK_EAT		2
+
+#define WINCR 20
+#define AINCR 10
+
+#define tok_malloc(a)		malloc(a)
+#define tok_free(a)		free(a)
+#define tok_realloc(a, b)	realloc(a, b)
+
+
+struct tokenizer {
+    char   *ifs;		/* In field separator			*/
+    int     argc, amax;		/* Current and maximum number of args	*/
+    char  **argv;		/* Argument list			*/
+    char   *wptr, *wmax;	/* Space and limit on the word buffer	*/
+    char   *wstart;		/* Beginning of next word		*/
+    char   *wspace;		/* Space of word buffer			*/
+    quote_t quote;		/* Quoting state			*/
+    int	    flags;		/* flags;				*/
+};
+
+
+private void tok_finish	__P((Tokenizer *));
+
+
+/* tok_finish():
+ *	Finish a word in the tokenizer.
+ */
+private void
+tok_finish(tok)
+    Tokenizer *tok;
+{
+    *tok->wptr = '\0';
+    if ((tok->flags & TOK_KEEP) || tok->wptr != tok->wstart) {
+	tok->argv[tok->argc++] = tok->wstart;
+	tok->argv[tok->argc] = NULL;
+	tok->wstart = ++tok->wptr;
+    }
+    tok->flags &= ~TOK_KEEP;
+}
+
+
+/* tok_init():
+ *	Initialize the tokenizer
+ */
+public Tokenizer *
+tok_init(ifs)
+    const char *ifs;
+{
+    Tokenizer* tok = (Tokenizer*) tok_malloc(sizeof(Tokenizer));
+
+    tok->ifs     = strdup(ifs ? ifs : IFS);
+    tok->argc    = 0;
+    tok->amax    = AINCR;
+    tok->argv    = (char **) tok_malloc(sizeof(char *) * tok->amax);
+    tok->argv[0] = NULL;
+    tok->wspace  = (char *) tok_malloc(WINCR);
+    tok->wmax    = tok->wspace + WINCR;
+    tok->wstart  = tok->wspace;
+    tok->wptr    = tok->wspace;
+    tok->flags   = 0;
+    tok->quote   = Q_none;
+
+    return tok;
+}
+
+
+/* tok_reset():
+ *	Reset the tokenizer
+ */
+public void
+tok_reset(tok)
+    Tokenizer *tok;
+{
+    tok->argc  = 0;
+    tok->wstart = tok->wspace;
+    tok->wptr = tok->wspace;
+    tok->flags = 0;
+    tok->quote = Q_none;
+}
+
+
+/* tok_end():
+ *	Clean up
+ */
+public void
+tok_end(tok)
+    Tokenizer *tok;
+{
+    tok_free((ptr_t) tok->ifs);
+    tok_free((ptr_t) tok->wspace);
+    tok_free((ptr_t) tok->argv);
+    tok_free((ptr_t) tok);
+}
+
+
+
+/* tok_line():
+ *	Bourne shell like tokenizing
+ *	Return:
+ *		-1: Internal error
+ *		 3: Quoted return
+ *		 2: Unmatched double quote
+ *		 1: Unmatched single quote
+ *		 0: Ok 
+ */
+public int
+tok_line(tok, line, argc, argv)
+    Tokenizer *tok;
+    const char* line;
+    int *argc;
+    char ***argv;
+{
+    const char *ptr;
+
+    while (1) {
+	switch (*(ptr = line++)) {
+	case '\'':
+	    tok->flags |= TOK_KEEP;
+	    tok->flags &= ~TOK_EAT;
+	    switch (tok->quote) {
+	    case Q_none:
+		tok->quote = Q_single;	/* Enter single quote mode */
+		break;
+
+	    case Q_single:		/* Exit single quote mode */
+		tok->quote = Q_none;
+		break;
+
+	    case Q_one:			/* Quote this ' */
+		tok->quote = Q_none;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_double:		/* Stay in double quote mode */
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_doubleone:		/* Quote this ' */
+		tok->quote = Q_double;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    default:
+		return(-1);
+	    }
+	    break;
+
+	case '"':
+	    tok->flags &= ~TOK_EAT;
+	    tok->flags |= TOK_KEEP;
+	    switch (tok->quote) {
+	    case Q_none:		/* Enter double quote mode */
+		tok->quote = Q_double;
+		break;
+
+	    case Q_double:
+		tok->quote = Q_none;	/* Exit double quote mode */
+		break;
+
+	    case Q_one:			/* Quote this " */
+		tok->quote = Q_none;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_single:		/* Stay in single quote mode */
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_doubleone:		/* Quote this " */
+		tok->quote = Q_double;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    default: 
+		return(-1);
+	    }
+	    break;
+
+	case '\\':
+	    tok->flags |= TOK_KEEP;
+	    tok->flags &= ~TOK_EAT;
+	    switch (tok->quote) {
+	    case Q_none:		/* Quote next character */
+		tok->quote = Q_one;
+		break;
+
+	    case Q_double:
+		tok->quote = Q_doubleone;/* Quote next character */
+		break;
+
+	    case Q_one:	
+		*tok->wptr++ = *ptr;
+		tok->quote = Q_none;	/* Quote this, restore state */
+		break;
+
+	    case Q_single:		/* Stay in single quote mode */
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_doubleone:		/* Quote this \ */
+		tok->quote = Q_double;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    default:
+		return(-1);
+	    }
+	    break;
+
+	case '\n':
+	    tok->flags &= ~TOK_EAT;
+	    switch (tok->quote) {
+	    case Q_none:
+		tok_finish(tok);
+		*argv = tok->argv;
+		*argc = tok->argc;
+		return(0);
+
+	    case Q_single:
+	    case Q_double:
+		*tok->wptr++ = *ptr;	/* Add the return		*/
+		break;
+	    
+	    case Q_doubleone:
+		tok->flags |= TOK_EAT;
+		tok->quote = Q_double;	/* Back to double, eat the '\n' */
+		break;
+
+	    case Q_one:
+		tok->flags |= TOK_EAT;
+		tok->quote = Q_none;	/* No quote, more eat the '\n' */
+		break;
+
+	    default:
+		return(0);
+	    }
+	    break;
+
+	case '\0':
+	    switch (tok->quote) {
+	    case Q_none:
+		/* Finish word and return */
+		if (tok->flags & TOK_EAT) {
+		    tok->flags &= ~TOK_EAT;
+		    return 3;
+		}
+		tok_finish(tok);
+		*argv = tok->argv;
+		*argc = tok->argc;
+		return(0);
+
+	    case Q_single:
+		return(1);
+
+	    case Q_double:
+		return(2);
+
+	    case Q_doubleone:
+		tok->quote = Q_double;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_one:
+		tok->quote = Q_none;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    default:
+		return(-1);
+	    }
+	    break;
+
+	default:
+	    tok->flags &= ~TOK_EAT;
+	    switch (tok->quote) {
+	    case Q_none:
+		if (strchr(tok->ifs, *ptr) != NULL)
+		    tok_finish(tok);
+		else
+		    *tok->wptr++ = *ptr;
+		break;
+
+	    case Q_single:
+	    case Q_double:
+		*tok->wptr++ = *ptr;
+		break;
+
+
+	    case Q_doubleone:
+		*tok->wptr++ = '\\';
+		tok->quote = Q_double;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    case Q_one:
+		tok->quote = Q_none;
+		*tok->wptr++ = *ptr;
+		break;
+
+	    default:
+		return(-1);
+
+	    }
+	    break;
+	}
+
+	if (tok->wptr >= tok->wmax - 4) {
+	    size_t size = tok->wmax - tok->wspace + WINCR;
+	    char *s = (char *) tok_realloc(tok->wspace, size);
+	    /*SUPPRESS 22*/
+	    int offs = s - tok->wspace;
+
+	    if (offs != 0) {
+		int i;
+		for (i = 0; i < tok->argc; i++)
+		    tok->argv[i] = tok->argv[i] + offs;
+		tok->wptr   = tok->wptr + offs;
+		tok->wstart = tok->wstart + offs;
+		tok->wmax   = s + size;
+		tok->wspace = s;
+	    }
+	}
+
+	if (tok->argc >= tok->amax - 4) {
+	    tok->amax += AINCR;
+	    tok->argv = (char **) tok_realloc(tok->argv, 
+					      tok->amax * sizeof(char*));
+	}
+
+    }
+}
diff --git a/lib/libedit/tokenizer.h b/lib/libedit/tokenizer.h
new file mode 100644
index 00000000000..d495dc69ab0
--- /dev/null
+++ b/lib/libedit/tokenizer.h
@@ -0,0 +1,53 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tokenizer.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * tokenizer.h: Header file for tokenizer routines
+ */
+#ifndef _h_tokenizer
+#define _h_tokenizer
+
+typedef struct tokenizer Tokenizer;
+
+Tokenizer 	*tok_init	__P((const char *));
+void		 tok_reset	__P((Tokenizer *));
+void		 tok_end	__P((Tokenizer *));
+int		 tok_line	__P((Tokenizer *, const char *, 
+				     int *, char ***));
+
+#endif /* _h_tokenizer */
diff --git a/lib/libedit/tty.c b/lib/libedit/tty.c
new file mode 100644
index 00000000000..ac99843b774
--- /dev/null
+++ b/lib/libedit/tty.c
@@ -0,0 +1,1144 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)tty.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/* 
+ * tty.c: tty interface stuff
+ */
+#include "sys.h"
+#include "tty.h"
+#include "el.h"
+
+typedef struct ttymodes_t {
+    char *m_name;
+    int   m_value;
+    int   m_type;
+} ttymodes_t;
+
+typedef struct ttymap_t {
+    int nch, och;		 /* Internal and termio rep of chars */
+    el_action_t bind[3]; 	/* emacs, vi, and vi-cmd */
+} ttymap_t;
+
+
+private ttyperm_t ttyperm = {   
+    {
+	{ "iflag:", ICRNL, (INLCR|IGNCR) },
+	{ "oflag:", (OPOST|ONLCR), ONLRET },
+	{ "cflag:", 0, 0 },
+	{ "lflag:", (ISIG|ICANON|ECHO|ECHOE|ECHOCTL|IEXTEN),
+		    (NOFLSH|ECHONL|EXTPROC|FLUSHO) },
+	{ "chars:", 	0, 0 },
+    },
+    {
+	{ "iflag:", (INLCR|ICRNL), IGNCR },
+	{ "oflag:", (OPOST|ONLCR), ONLRET },
+	{ "cflag:", 0, 0 },
+	{ "lflag:", ISIG,
+		    (NOFLSH|ICANON|ECHO|ECHOK|ECHONL|EXTPROC|IEXTEN|FLUSHO) },
+	{ "chars:", (C_SH(C_MIN)|C_SH(C_TIME)|C_SH(C_SWTCH)|C_SH(C_DSWTCH)|
+		     C_SH(C_SUSP)|C_SH(C_DSUSP)|C_SH(C_EOL)|C_SH(C_DISCARD)|
+		     C_SH(C_PGOFF)|C_SH(C_PAGE)|C_SH(C_STATUS)), 0 }
+    },
+    {
+	{ "iflag:", 0, IXON | IXOFF },
+	{ "oflag:", 0, 0 },
+	{ "cflag:", 0, 0 },
+	{ "lflag:", 0, ISIG | IEXTEN },
+	{ "chars:", 0, 0 },
+    }
+};
+
+private ttychar_t ttychar = {
+    {
+	CINTR,		 CQUIT, 	 CERASE, 	   CKILL,	
+	CEOF, 		 CEOL, 		 CEOL2, 	   CSWTCH, 
+	CDSWTCH,	 CERASE2,	 CSTART, 	   CSTOP,
+	CWERASE, 	 CSUSP, 	 CDSUSP, 	   CREPRINT,
+	CDISCARD, 	 CLNEXT,	 CSTATUS,	   CPAGE,
+	CPGOFF,		 CKILL2, 	 CBRK, 		   CMIN,
+	CTIME
+    },
+    {
+	CINTR, 		 CQUIT, 	  CERASE, 	   CKILL, 
+	_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 
+	_POSIX_VDISABLE, CERASE2,	  CSTART, 	   CSTOP, 	   
+	_POSIX_VDISABLE, CSUSP,           _POSIX_VDISABLE, _POSIX_VDISABLE, 
+	CDISCARD, 	 _POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 
+	_POSIX_VDISABLE, _POSIX_VDISABLE, _POSIX_VDISABLE, 1,
+	0
+    },
+    {	
+	0,		 0,		  0,		   0,
+	0,		 0,		  0,		   0,
+	0,		 0,		  0,		   0,
+	0,		 0,		  0,		   0,
+	0,		 0,		  0,		   0,
+	0,		 0,		  0,		   0,
+	0
+    }
+};
+
+private ttymap_t tty_map[] = {
+#ifdef VERASE
+	{ C_ERASE,   VERASE,	
+	    { ED_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR } },
+#endif /* VERASE */
+#ifdef VERASE2
+	{ C_ERASE2,  VERASE2,	
+	    { ED_DELETE_PREV_CHAR, VI_DELETE_PREV_CHAR, ED_PREV_CHAR } },
+#endif /* VERASE2 */
+#ifdef VKILL
+    	{ C_KILL,    VKILL,	
+	    { EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED } },
+#endif /* VKILL */
+#ifdef VKILL2
+    	{ C_KILL2,   VKILL2,	
+	    { EM_KILL_LINE, VI_KILL_LINE_PREV, ED_UNASSIGNED } },
+#endif /* VKILL2 */
+#ifdef VEOF
+    	{ C_EOF,     VEOF,	
+	    { EM_DELETE_OR_LIST, VI_LIST_OR_EOF, ED_UNASSIGNED } },
+#endif /* VEOF */
+#ifdef VWERASE
+    	{ C_WERASE,  VWERASE,	
+	    { ED_DELETE_PREV_WORD, ED_DELETE_PREV_WORD, ED_PREV_WORD } },
+#endif /* VWERASE */
+#ifdef VREPRINT
+   	{ C_REPRINT, VREPRINT,	
+	    { ED_REDISPLAY, ED_INSERT, ED_REDISPLAY } },
+#endif /* VREPRINT */
+#ifdef VLNEXT
+    	{ C_LNEXT,   VLNEXT,	
+	    { ED_QUOTED_INSERT, ED_QUOTED_INSERT, ED_UNASSIGNED } },
+#endif /* VLNEXT */
+	{ -1,	     -1,	
+	    { ED_UNASSIGNED, ED_UNASSIGNED, ED_UNASSIGNED } }
+    };
+
+private ttymodes_t ttymodes[] = {
+# ifdef	IGNBRK
+    { "ignbrk",	IGNBRK,	M_INP },
+# endif /* IGNBRK */
+# ifdef	BRKINT
+    { "brkint",	BRKINT,	M_INP },
+# endif /* BRKINT */
+# ifdef	IGNPAR
+    { "ignpar",	IGNPAR,	M_INP },
+# endif /* IGNPAR */
+# ifdef	PARMRK
+    { "parmrk",	PARMRK,	M_INP },
+# endif /* PARMRK */
+# ifdef	INPCK
+    { "inpck",	INPCK,	M_INP },
+# endif /* INPCK */
+# ifdef	ISTRIP
+    { "istrip",	ISTRIP,	M_INP },
+# endif /* ISTRIP */
+# ifdef	INLCR
+    { "inlcr",	INLCR,	M_INP },
+# endif /* INLCR */
+# ifdef	IGNCR
+    { "igncr",	IGNCR,	M_INP },
+# endif /* IGNCR */
+# ifdef	ICRNL
+    { "icrnl",	ICRNL,	M_INP },
+# endif /* ICRNL */
+# ifdef	IUCLC
+    { "iuclc",	IUCLC,	M_INP },
+# endif /* IUCLC */
+# ifdef	IXON
+    { "ixon",	IXON,	M_INP },
+# endif /* IXON */
+# ifdef	IXANY
+    { "ixany",	IXANY,	M_INP },
+# endif /* IXANY */
+# ifdef	IXOFF
+    { "ixoff",	IXOFF,	M_INP },
+# endif /* IXOFF */
+# ifdef  IMAXBEL
+    { "imaxbel",IMAXBEL,M_INP },
+# endif /* IMAXBEL */
+
+# ifdef	OPOST
+    { "opost",	OPOST,	M_OUT },
+# endif /* OPOST */
+# ifdef	OLCUC
+    { "olcuc",	OLCUC,	M_OUT },
+# endif /* OLCUC */
+# ifdef	ONLCR
+    { "onlcr",	ONLCR,	M_OUT },
+# endif /* ONLCR */
+# ifdef	OCRNL
+    { "ocrnl",	OCRNL,	M_OUT },
+# endif /* OCRNL */
+# ifdef	ONOCR
+    { "onocr",	ONOCR,	M_OUT },
+# endif /* ONOCR */
+# ifdef ONOEOT
+    { "onoeot",	ONOEOT,	M_OUT },
+# endif /* ONOEOT */
+# ifdef	ONLRET
+    { "onlret",	ONLRET,	M_OUT },
+# endif /* ONLRET */
+# ifdef	OFILL
+    { "ofill",	OFILL,	M_OUT },
+# endif /* OFILL */
+# ifdef	OFDEL
+    { "ofdel",	OFDEL,	M_OUT },
+# endif /* OFDEL */
+# ifdef	NLDLY
+    { "nldly",	NLDLY,	M_OUT },
+# endif /* NLDLY */
+# ifdef	CRDLY
+    { "crdly",	CRDLY,	M_OUT },
+# endif /* CRDLY */
+# ifdef	TABDLY
+    { "tabdly",	TABDLY,	M_OUT },
+# endif /* TABDLY */
+# ifdef	XTABS
+    { "xtabs",	XTABS,	M_OUT },
+# endif /* XTABS */
+# ifdef	BSDLY
+    { "bsdly",	BSDLY,	M_OUT },
+# endif /* BSDLY */
+# ifdef	VTDLY
+    { "vtdly",	VTDLY,	M_OUT },
+# endif /* VTDLY */
+# ifdef	FFDLY
+    { "ffdly",	FFDLY,	M_OUT },
+# endif /* FFDLY */
+# ifdef	PAGEOUT
+    { "pageout",PAGEOUT,M_OUT },
+# endif /* PAGEOUT */
+# ifdef	WRAP
+    { "wrap",	WRAP,	M_OUT },
+# endif /* WRAP */
+
+# ifdef	CIGNORE
+    { "cignore",CIGNORE,M_CTL },
+# endif /* CBAUD */
+# ifdef	CBAUD
+    { "cbaud",	CBAUD,	M_CTL },
+# endif /* CBAUD */
+# ifdef	CSTOPB
+    { "cstopb",	CSTOPB,	M_CTL },
+# endif /* CSTOPB */
+# ifdef	CREAD
+    { "cread",	CREAD,	M_CTL },
+# endif /* CREAD */
+# ifdef	PARENB
+    { "parenb",	PARENB,	M_CTL },
+# endif /* PARENB */
+# ifdef	PARODD
+    { "parodd",	PARODD,	M_CTL },
+# endif /* PARODD */
+# ifdef	HUPCL
+    { "hupcl",	HUPCL,	M_CTL },
+# endif /* HUPCL */
+# ifdef	CLOCAL
+    { "clocal",	CLOCAL,	M_CTL },
+# endif /* CLOCAL */
+# ifdef	LOBLK
+    { "loblk",	LOBLK,	M_CTL },
+# endif /* LOBLK */
+# ifdef	CIBAUD
+    { "cibaud",	CIBAUD,	M_CTL },
+# endif /* CIBAUD */
+# ifdef CRTSCTS
+#  ifdef CCTS_OFLOW
+    { "ccts_oflow",CCTS_OFLOW,M_CTL },
+#  else
+    { "crtscts",CRTSCTS,M_CTL },
+#  endif /* CCTS_OFLOW */
+# endif /* CRTSCTS */
+# ifdef CRTS_IFLOW
+    { "crts_iflow",CRTS_IFLOW,M_CTL },
+# endif /* CRTS_IFLOW */
+# ifdef MDMBUF
+    { "mdmbuf",	MDMBUF,	M_CTL },
+# endif /* MDMBUF */
+# ifdef RCV1EN
+    { "rcv1en",	RCV1EN,	M_CTL },
+# endif /* RCV1EN */
+# ifdef XMT1EN
+    { "xmt1en",	XMT1EN,	M_CTL },
+# endif /* XMT1EN */
+
+# ifdef	ISIG
+    { "isig",	ISIG,	M_LIN },
+# endif /* ISIG */
+# ifdef	ICANON
+    { "icanon",	ICANON,	M_LIN },
+# endif /* ICANON */
+# ifdef	XCASE
+    { "xcase",	XCASE,	M_LIN },
+# endif /* XCASE */
+# ifdef	ECHO
+    { "echo",	ECHO,	M_LIN },
+# endif /* ECHO */
+# ifdef	ECHOE
+    { "echoe",	ECHOE,	M_LIN },
+# endif /* ECHOE */
+# ifdef	ECHOK
+    { "echok",	ECHOK,	M_LIN },
+# endif /* ECHOK */
+# ifdef	ECHONL
+    { "echonl",	ECHONL,	M_LIN },
+# endif /* ECHONL */
+# ifdef	NOFLSH
+    { "noflsh",	NOFLSH,	M_LIN },
+# endif /* NOFLSH */
+# ifdef	TOSTOP
+    { "tostop",	TOSTOP,	M_LIN },
+# endif /* TOSTOP */
+# ifdef	ECHOCTL
+    { "echoctl",ECHOCTL,M_LIN },
+# endif /* ECHOCTL */
+# ifdef	ECHOPRT
+    { "echoprt",ECHOPRT,M_LIN },
+# endif /* ECHOPRT */
+# ifdef	ECHOKE
+    { "echoke",	ECHOKE,	M_LIN },
+# endif /* ECHOKE */
+# ifdef	DEFECHO
+    { "defecho",DEFECHO,M_LIN },
+# endif /* DEFECHO */
+# ifdef	FLUSHO
+    { "flusho",	FLUSHO,	M_LIN },
+# endif /* FLUSHO */
+# ifdef	PENDIN
+    { "pendin",	PENDIN,	M_LIN },
+# endif /* PENDIN */
+# ifdef	IEXTEN
+    { "iexten",	IEXTEN,	M_LIN },
+# endif /* IEXTEN */
+# ifdef	NOKERNINFO
+    { "nokerninfo",NOKERNINFO,M_LIN },
+# endif /* NOKERNINFO */
+# ifdef	ALTWERASE
+    { "altwerase",ALTWERASE,M_LIN },
+# endif /* ALTWERASE */
+# ifdef	EXTPROC
+    { "extproc",EXTPROC, M_LIN },
+# endif /* EXTPROC */
+
+# if defined(VINTR) 
+    { "intr",		C_SH(C_INTR), 	M_CHAR },
+# endif /* VINTR */
+# if defined(VQUIT)
+    { "quit",		C_SH(C_QUIT), 	M_CHAR },
+# endif /* VQUIT */
+# if defined(VERASE)
+    { "erase",		C_SH(C_ERASE), 	M_CHAR },
+# endif /* VERASE */
+# if defined(VKILL)
+    { "kill",		C_SH(C_KILL), 	M_CHAR },
+# endif /* VKILL */
+# if defined(VEOF)
+    { "eof",		C_SH(C_EOF), 	M_CHAR },
+# endif /* VEOF */
+# if defined(VEOL)
+    { "eol",		C_SH(C_EOL), 	M_CHAR },
+# endif /* VEOL */
+# if defined(VEOL2)
+    { "eol2",		C_SH(C_EOL2), 	M_CHAR },
+# endif  /* VEOL2 */
+# if defined(VSWTCH)
+    { "swtch",		C_SH(C_SWTCH), 	M_CHAR },
+# endif /* VSWTCH */
+# if defined(VDSWTCH)
+    { "dswtch",		C_SH(C_DSWTCH),	M_CHAR },
+# endif /* VDSWTCH */
+# if defined(VERASE2)
+    { "erase2",		C_SH(C_ERASE2),	M_CHAR },
+# endif /* VERASE2 */
+# if defined(VSTART)
+    { "start",		C_SH(C_START), 	M_CHAR },
+# endif /* VSTART */
+# if defined(VSTOP)
+    { "stop",		C_SH(C_STOP), 	M_CHAR },
+# endif /* VSTOP */
+# if defined(VWERASE)
+    { "werase",		C_SH(C_WERASE),	M_CHAR },
+# endif /* VWERASE */
+# if defined(VSUSP)
+    { "susp",		C_SH(C_SUSP), 	M_CHAR },
+# endif /* VSUSP */
+# if defined(VDSUSP)
+    { "dsusp",		C_SH(C_DSUSP), 	M_CHAR },
+# endif /* VDSUSP */
+# if defined(VREPRINT)
+    { "reprint",	C_SH(C_REPRINT),M_CHAR },
+# endif /* VREPRINT */
+# if defined(VDISCARD)
+    { "discard",	C_SH(C_DISCARD),M_CHAR },
+# endif /* VDISCARD */
+# if defined(VLNEXT)
+    { "lnext",		C_SH(C_LNEXT), 	M_CHAR },
+# endif /* VLNEXT */
+# if defined(VSTATUS)
+    { "status",		C_SH(C_STATUS),	M_CHAR },
+# endif /* VSTATUS */
+# if defined(VPAGE)
+    { "page",		C_SH(C_PAGE), 	M_CHAR },
+# endif /* VPAGE */
+# if defined(VPGOFF)
+    { "pgoff",		C_SH(C_PGOFF), 	M_CHAR },
+# endif /* VPGOFF */
+# if defined(VKILL2) 
+    { "kill2",		C_SH(C_KILL2), 	M_CHAR },
+# endif /* VKILL2 */
+# if defined(VBRK)
+    { "brk",		C_SH(C_BRK), 	M_CHAR },
+# endif /* VBRK */
+# if defined(VMIN)
+    { "min",		C_SH(C_MIN), 	M_CHAR },
+# endif /* VMIN */
+# if defined(VTIME)
+    { "time",		C_SH(C_TIME), 	M_CHAR },
+# endif /* VTIME */
+    { NULL, 0, -1 },
+};
+
+
+
+#define tty_getty(el, td) tcgetattr((el)->el_infd, (td))
+#define tty_setty(el, td) tcsetattr((el)->el_infd, TCSADRAIN, (td)) 
+
+#define tty__gettabs(td)     ((((td)->c_oflag & TAB3) == TAB3) ? 0 : 1)
+#define tty__geteightbit(td) (((td)->c_cflag & CSIZE) == CS8)
+#define tty__cooked_mode(td) ((td)->c_lflag & ICANON)
+
+private void    tty__getchar	__P((struct termios *, unsigned char *));
+private void    tty__setchar	__P((struct termios *, unsigned char *));
+private speed_t tty__getspeed	__P((struct termios *));
+private int     tty_setup	__P((EditLine *));
+
+#define t_qu t_ts
+
+
+/* tty_setup():
+ *	Get the tty parameters and initialize the editing state
+ */
+private int 
+tty_setup(el)
+    EditLine *el;
+{
+    int rst = 1;
+    if (tty_getty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, 
+		       "tty_setup: tty_getty: %s\n", strerror(errno));
+#endif /* DEBUG_TTY */
+	return(-1);
+    }
+    el->el_tty.t_ts    = el->el_tty.t_ex = el->el_tty.t_ed;
+
+    el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ex);
+    el->el_tty.t_tabs  = tty__gettabs(&el->el_tty.t_ex);
+    el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ex);
+
+    el->el_tty.t_ex.c_iflag &= ~el->el_tty.t_t[EX_IO][M_INP].t_clrmask;
+    el->el_tty.t_ex.c_iflag |=  el->el_tty.t_t[EX_IO][M_INP].t_setmask;
+
+    el->el_tty.t_ex.c_oflag &= ~el->el_tty.t_t[EX_IO][M_OUT].t_clrmask;
+    el->el_tty.t_ex.c_oflag |=  el->el_tty.t_t[EX_IO][M_OUT].t_setmask;
+
+    el->el_tty.t_ex.c_cflag &= ~el->el_tty.t_t[EX_IO][M_CTL].t_clrmask;
+    el->el_tty.t_ex.c_cflag |=  el->el_tty.t_t[EX_IO][M_CTL].t_setmask;
+
+    el->el_tty.t_ex.c_lflag &= ~el->el_tty.t_t[EX_IO][M_LIN].t_clrmask;
+    el->el_tty.t_ex.c_lflag |=  el->el_tty.t_t[EX_IO][M_LIN].t_setmask;
+
+    /*
+     * Reset the tty chars to reasonable defaults
+     * If they are disabled, then enable them.
+     */
+    if (rst) {
+        if (tty__cooked_mode(&el->el_tty.t_ts)) {
+            tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
+            /*
+             * Don't affect CMIN and CTIME for the editor mode
+             */
+            for (rst = 0; rst < C_NCC - 2; rst++)
+                if (el->el_tty.t_c[TS_IO][rst] != el->el_tty.t_vdisable &&
+                    el->el_tty.t_c[ED_IO][rst] != el->el_tty.t_vdisable)
+                    el->el_tty.t_c[ED_IO][rst]  = el->el_tty.t_c[TS_IO][rst];
+            for (rst = 0; rst < C_NCC; rst++)
+                if (el->el_tty.t_c[TS_IO][rst] != el->el_tty.t_vdisable &&
+                    el->el_tty.t_c[EX_IO][rst] != el->el_tty.t_vdisable)
+                    el->el_tty.t_c[EX_IO][rst]  = el->el_tty.t_c[TS_IO][rst];
+        }
+        tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+        if (tty_setty(el, &el->el_tty.t_ex) == -1) {
+#ifdef DEBUG_TTY
+            (void) fprintf(el->el_errfile, "tty_setup: tty_setty: %s\n", 
+			   strerror(errno));
+#endif /* DEBUG_TTY */
+            return(-1);
+        }
+    }
+    else
+        tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+
+    el->el_tty.t_ed.c_iflag &= ~el->el_tty.t_t[ED_IO][M_INP].t_clrmask;
+    el->el_tty.t_ed.c_iflag |=  el->el_tty.t_t[ED_IO][M_INP].t_setmask;
+
+    el->el_tty.t_ed.c_oflag &= ~el->el_tty.t_t[ED_IO][M_OUT].t_clrmask;
+    el->el_tty.t_ed.c_oflag |=  el->el_tty.t_t[ED_IO][M_OUT].t_setmask;
+
+    el->el_tty.t_ed.c_cflag &= ~el->el_tty.t_t[ED_IO][M_CTL].t_clrmask;
+    el->el_tty.t_ed.c_cflag |=  el->el_tty.t_t[ED_IO][M_CTL].t_setmask;
+
+    el->el_tty.t_ed.c_lflag &= ~el->el_tty.t_t[ED_IO][M_LIN].t_clrmask;
+    el->el_tty.t_ed.c_lflag |=  el->el_tty.t_t[ED_IO][M_LIN].t_setmask;
+
+    tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
+    return 0;
+}
+
+protected int
+tty_init(el)
+    EditLine *el;
+{
+    el->el_tty.t_mode     = EX_IO;
+    el->el_tty.t_vdisable = _POSIX_VDISABLE;
+    (void) memcpy(el->el_tty.t_t, ttyperm, sizeof(ttyperm_t));
+    (void) memcpy(el->el_tty.t_c, ttychar, sizeof(ttychar_t));
+    return tty_setup(el);
+} /* end tty_init */
+
+
+/* tty_end():
+ *	Restore the tty to its original settings
+ */
+protected void
+/*ARGSUSED*/
+tty_end(el)
+    EditLine *el;
+{
+    /* XXX: Maybe reset to an initial state? */
+}
+
+
+/* tty__getspeed():
+ *	Get the tty speed
+ */
+private speed_t
+tty__getspeed(td)
+    struct termios *td;
+{
+    speed_t spd;
+
+    if ((spd = cfgetispeed(td)) == 0)
+	spd = cfgetospeed(td);
+    return spd;
+} /* end tty__getspeed */
+
+
+/* tty__getchar():
+ *	Get the tty characters
+ */
+private void
+tty__getchar(td, s)
+    struct termios *td;
+    unsigned char *s;
+{   
+# ifdef VINTR
+    s[C_INTR]	= td->c_cc[VINTR];
+# endif /* VINTR */
+# ifdef VQUIT
+    s[C_QUIT]	= td->c_cc[VQUIT];
+# endif /* VQUIT */
+# ifdef VERASE
+    s[C_ERASE]	= td->c_cc[VERASE];
+# endif /* VERASE */
+# ifdef VKILL
+    s[C_KILL]	= td->c_cc[VKILL];
+# endif /* VKILL */
+# ifdef VEOF
+    s[C_EOF]	= td->c_cc[VEOF];
+# endif /* VEOF */
+# ifdef VEOL
+    s[C_EOL]	= td->c_cc[VEOL];
+# endif /* VEOL */
+# ifdef VEOL2
+    s[C_EOL2]	= td->c_cc[VEOL2];
+# endif  /* VEOL2 */
+# ifdef VSWTCH
+    s[C_SWTCH]	= td->c_cc[VSWTCH];
+# endif /* VSWTCH */
+# ifdef VDSWTCH
+    s[C_DSWTCH]	= td->c_cc[VDSWTCH];
+# endif /* VDSWTCH */
+# ifdef VERASE2
+    s[C_ERASE2]	= td->c_cc[VERASE2];
+# endif /* VERASE2 */
+# ifdef VSTART
+    s[C_START]	= td->c_cc[VSTART];
+# endif /* VSTART */
+# ifdef VSTOP
+    s[C_STOP]	= td->c_cc[VSTOP];
+# endif /* VSTOP */
+# ifdef VWERASE
+    s[C_WERASE]	= td->c_cc[VWERASE];
+# endif /* VWERASE */
+# ifdef VSUSP
+    s[C_SUSP]	= td->c_cc[VSUSP];
+# endif /* VSUSP */
+# ifdef VDSUSP
+    s[C_DSUSP]	= td->c_cc[VDSUSP];
+# endif /* VDSUSP */
+# ifdef VREPRINT
+    s[C_REPRINT]= td->c_cc[VREPRINT];
+# endif /* VREPRINT */
+# ifdef VDISCARD
+    s[C_DISCARD]= td->c_cc[VDISCARD];
+# endif /* VDISCARD */
+# ifdef VLNEXT
+    s[C_LNEXT]	= td->c_cc[VLNEXT];
+# endif /* VLNEXT */
+# ifdef VSTATUS
+    s[C_STATUS]	= td->c_cc[VSTATUS];
+# endif /* VSTATUS */
+# ifdef VPAGE
+    s[C_PAGE]	= td->c_cc[VPAGE];
+# endif /* VPAGE */
+# ifdef VPGOFF
+    s[C_PGOFF]	= td->c_cc[VPGOFF];
+# endif /* VPGOFF */
+# ifdef VKILL2
+    s[C_KILL2]	= td->c_cc[VKILL2];
+# endif /* KILL2 */
+# ifdef VMIN
+    s[C_MIN]	= td->c_cc[VMIN];
+# endif /* VMIN */
+# ifdef VTIME
+    s[C_TIME]	= td->c_cc[VTIME];
+# endif /* VTIME */
+} /* tty__getchar */
+
+
+/* tty__setchar():
+ *	Set the tty characters
+ */
+private void
+tty__setchar(td, s)
+    struct termios *td;
+    unsigned char *s;
+{   
+# ifdef VINTR
+    td->c_cc[VINTR]	= s[C_INTR];
+# endif /* VINTR */
+# ifdef VQUIT
+    td->c_cc[VQUIT]	= s[C_QUIT];
+# endif /* VQUIT */
+# ifdef VERASE
+    td->c_cc[VERASE]	= s[C_ERASE];
+# endif /* VERASE */
+# ifdef VKILL
+    td->c_cc[VKILL]	= s[C_KILL];
+# endif /* VKILL */
+# ifdef VEOF
+    td->c_cc[VEOF]	= s[C_EOF];
+# endif /* VEOF */
+# ifdef VEOL
+    td->c_cc[VEOL]	= s[C_EOL];
+# endif /* VEOL */
+# ifdef VEOL2
+    td->c_cc[VEOL2]	= s[C_EOL2];
+# endif  /* VEOL2 */
+# ifdef VSWTCH
+    td->c_cc[VSWTCH]	= s[C_SWTCH];
+# endif /* VSWTCH */
+# ifdef VDSWTCH
+    td->c_cc[VDSWTCH]	= s[C_DSWTCH];
+# endif /* VDSWTCH */
+# ifdef VERASE2
+    td->c_cc[VERASE2]	= s[C_ERASE2];
+# endif /* VERASE2 */
+# ifdef VSTART
+    td->c_cc[VSTART]	= s[C_START];
+# endif /* VSTART */
+# ifdef VSTOP
+    td->c_cc[VSTOP]	= s[C_STOP];
+# endif /* VSTOP */
+# ifdef VWERASE
+    td->c_cc[VWERASE]	= s[C_WERASE];
+# endif /* VWERASE */
+# ifdef VSUSP
+    td->c_cc[VSUSP]	= s[C_SUSP];
+# endif /* VSUSP */
+# ifdef VDSUSP
+    td->c_cc[VDSUSP]	= s[C_DSUSP];
+# endif /* VDSUSP */
+# ifdef VREPRINT
+    td->c_cc[VREPRINT]	= s[C_REPRINT];
+# endif /* VREPRINT */
+# ifdef VDISCARD
+    td->c_cc[VDISCARD]	= s[C_DISCARD];
+# endif /* VDISCARD */
+# ifdef VLNEXT
+    td->c_cc[VLNEXT]	= s[C_LNEXT];
+# endif /* VLNEXT */
+# ifdef VSTATUS
+    td->c_cc[VSTATUS]	= s[C_STATUS];
+# endif /* VSTATUS */
+# ifdef VPAGE
+    td->c_cc[VPAGE]	= s[C_PAGE];
+# endif /* VPAGE */
+# ifdef VPGOFF
+    td->c_cc[VPGOFF]	= s[C_PGOFF];
+# endif /* VPGOFF */
+# ifdef VKILL2
+    td->c_cc[VKILL2]	= s[C_KILL2];
+# endif /* VKILL2 */
+# ifdef VMIN
+    td->c_cc[VMIN]	= s[C_MIN];
+# endif /* VMIN */
+# ifdef VTIME
+    td->c_cc[VTIME]	= s[C_TIME];
+# endif /* VTIME */
+} /* tty__setchar */
+
+
+/* tty_bind_char():
+ *	Rebind the editline functions
+ */
+protected void
+tty_bind_char(el, force)
+    EditLine *el;
+    int force;
+{
+    unsigned char *t_n = el->el_tty.t_c[ED_IO];
+    unsigned char *t_o = el->el_tty.t_ed.c_cc;
+    char new[2], old[2];
+    ttymap_t *tp;
+    el_action_t  *dmap, *dalt, *map, *alt;
+    new[1] = old[1] = '\0';
+
+
+    map = el->el_map.key;
+    alt = el->el_map.alt;
+    if (el->el_map.type == MAP_VI) {
+	dmap = el->el_map.vii;
+	dalt = el->el_map.vic;
+    }
+    else {
+	dmap = el->el_map.emacs;
+	dalt = NULL;
+    }
+
+    for (tp = tty_map; tp->nch != -1; tp++) {
+	new[0] = t_n[tp->nch];
+	old[0] = t_o[tp->och];
+	if (new[0] == old[0] && !force)
+	    continue;
+	/* Put the old default binding back, and set the new binding */
+	key_clear(el, map, old);
+	map[old[0]] = dmap[old[0]];
+	key_clear(el, map, new);
+	/* MAP_VI == 1, MAP_EMACS == 0... */
+	map[new[0]] = tp->bind[el->el_map.type];
+	if (dalt) {
+	    key_clear(el, alt, old);
+	    alt[old[0]] = dalt[old[0]];
+	    key_clear(el, alt, new);
+	    alt[new[0]] = tp->bind[el->el_map.type+1];
+	}
+    }
+}
+
+/* tty_rawmode():
+ * 	Set terminal into 1 character at a time mode.
+ */
+protected int
+tty_rawmode(el)
+    EditLine *el;
+{
+    if (el->el_tty.t_mode == ED_IO)
+	return (0);
+
+    if (tty_getty(el, &el->el_tty.t_ts) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, "tty_rawmode: tty_getty: %s\n", strerror(errno));
+#endif /* DEBUG_TTY */
+	return(-1);
+    }
+
+    /*
+     * We always keep up with the eight bit setting and the speed of the
+     * tty. But only we only believe changes that are made to cooked mode!
+     */
+    el->el_tty.t_eight = tty__geteightbit(&el->el_tty.t_ts);
+    el->el_tty.t_speed = tty__getspeed(&el->el_tty.t_ts);
+
+    if (tty__getspeed(&el->el_tty.t_ex) != el->el_tty.t_speed || 
+	tty__getspeed(&el->el_tty.t_ed) != el->el_tty.t_speed) {
+	(void) cfsetispeed(&el->el_tty.t_ex, el->el_tty.t_speed);
+	(void) cfsetospeed(&el->el_tty.t_ex, el->el_tty.t_speed);
+	(void) cfsetispeed(&el->el_tty.t_ed, el->el_tty.t_speed);
+	(void) cfsetospeed(&el->el_tty.t_ed, el->el_tty.t_speed);
+    }
+
+    if (tty__cooked_mode(&el->el_tty.t_ts)) {
+	if (el->el_tty.t_ts.c_cflag != el->el_tty.t_ex.c_cflag) { 
+	    el->el_tty.t_ex.c_cflag  = el->el_tty.t_ts.c_cflag;
+	    el->el_tty.t_ex.c_cflag &= ~el->el_tty.t_t[EX_IO][M_CTL].t_clrmask;
+	    el->el_tty.t_ex.c_cflag |=  el->el_tty.t_t[EX_IO][M_CTL].t_setmask;
+
+	    el->el_tty.t_ed.c_cflag  = el->el_tty.t_ts.c_cflag;
+	    el->el_tty.t_ed.c_cflag &= ~el->el_tty.t_t[ED_IO][M_CTL].t_clrmask;
+	    el->el_tty.t_ed.c_cflag |=  el->el_tty.t_t[ED_IO][M_CTL].t_setmask;
+	}
+
+	if ((el->el_tty.t_ts.c_lflag != el->el_tty.t_ex.c_lflag) &&
+	    (el->el_tty.t_ts.c_lflag != el->el_tty.t_ed.c_lflag)) {
+	    el->el_tty.t_ex.c_lflag = el->el_tty.t_ts.c_lflag;
+	    el->el_tty.t_ex.c_lflag &= ~el->el_tty.t_t[EX_IO][M_LIN].t_clrmask;
+	    el->el_tty.t_ex.c_lflag |=  el->el_tty.t_t[EX_IO][M_LIN].t_setmask;
+
+	    el->el_tty.t_ed.c_lflag = el->el_tty.t_ts.c_lflag;
+	    el->el_tty.t_ed.c_lflag &= ~el->el_tty.t_t[ED_IO][M_LIN].t_clrmask;
+	    el->el_tty.t_ed.c_lflag |=  el->el_tty.t_t[ED_IO][M_LIN].t_setmask;
+	}
+
+	if ((el->el_tty.t_ts.c_iflag != el->el_tty.t_ex.c_iflag) &&
+	    (el->el_tty.t_ts.c_iflag != el->el_tty.t_ed.c_iflag)) {
+	    el->el_tty.t_ex.c_iflag = el->el_tty.t_ts.c_iflag;
+	    el->el_tty.t_ex.c_iflag &= ~el->el_tty.t_t[EX_IO][M_INP].t_clrmask;
+	    el->el_tty.t_ex.c_iflag |=  el->el_tty.t_t[EX_IO][M_INP].t_setmask;
+
+	    el->el_tty.t_ed.c_iflag = el->el_tty.t_ts.c_iflag;
+	    el->el_tty.t_ed.c_iflag &= ~el->el_tty.t_t[ED_IO][M_INP].t_clrmask;
+	    el->el_tty.t_ed.c_iflag |=  el->el_tty.t_t[ED_IO][M_INP].t_setmask;
+	}
+
+	if ((el->el_tty.t_ts.c_oflag != el->el_tty.t_ex.c_oflag) &&
+	    (el->el_tty.t_ts.c_oflag != el->el_tty.t_ed.c_oflag)) {
+	    el->el_tty.t_ex.c_oflag = el->el_tty.t_ts.c_oflag;
+	    el->el_tty.t_ex.c_oflag &= ~el->el_tty.t_t[EX_IO][M_OUT].t_clrmask;
+	    el->el_tty.t_ex.c_oflag |=  el->el_tty.t_t[EX_IO][M_OUT].t_setmask;
+
+	    el->el_tty.t_ed.c_oflag = el->el_tty.t_ts.c_oflag;
+	    el->el_tty.t_ed.c_oflag &= ~el->el_tty.t_t[ED_IO][M_OUT].t_clrmask;
+	    el->el_tty.t_ed.c_oflag |=  el->el_tty.t_t[ED_IO][M_OUT].t_setmask;
+	}
+
+	if (tty__gettabs(&el->el_tty.t_ex) == 0) 
+	    el->el_tty.t_tabs = 0;
+	else 
+	    el->el_tty.t_tabs = EL_CAN_TAB ? 1 : 0;
+
+	{
+	    int i;
+
+	    tty__getchar(&el->el_tty.t_ts, el->el_tty.t_c[TS_IO]);
+	    /*
+	     * Check if the user made any changes.
+	     * If he did, then propagate the changes to the
+	     * edit and execute data structures.
+	     */
+	    for (i = 0; i < C_NCC; i++)
+		if (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i])
+		    break;
+		
+	    if (i != C_NCC) {
+		/*
+		 * Propagate changes only to the unprotected chars
+		 * that have been modified just now.
+		 */
+		for (i = 0; i < C_NCC; i++) {
+		    if (!((el->el_tty.t_t[ED_IO][M_CHAR].t_setmask & C_SH(i)))
+		      && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
+			el->el_tty.t_c[ED_IO][i] = el->el_tty.t_c[TS_IO][i];
+		    if (el->el_tty.t_t[ED_IO][M_CHAR].t_clrmask & C_SH(i))
+			el->el_tty.t_c[ED_IO][i] = el->el_tty.t_vdisable;
+		}
+		tty_bind_char(el, 0);
+		tty__setchar(&el->el_tty.t_ed, el->el_tty.t_c[ED_IO]);
+
+		for (i = 0; i < C_NCC; i++) {
+		    if (!((el->el_tty.t_t[EX_IO][M_CHAR].t_setmask & C_SH(i)))
+		      && (el->el_tty.t_c[TS_IO][i] != el->el_tty.t_c[EX_IO][i]))
+			el->el_tty.t_c[EX_IO][i] = el->el_tty.t_c[TS_IO][i];
+		    if (el->el_tty.t_t[EX_IO][M_CHAR].t_clrmask & C_SH(i))
+			el->el_tty.t_c[EX_IO][i] = el->el_tty.t_vdisable;
+		}
+		tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
+	    }
+
+	}
+    }
+
+    if (tty_setty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, "tty_rawmode: tty_setty: %s\n", 
+		       strerror(errno));
+#endif /* DEBUG_TTY */
+	return -1;
+    }
+    el->el_tty.t_mode = ED_IO;
+    return (0);
+} /* end tty_rawmode */
+
+
+/* tty_cookedmode():
+ *	Set the tty back to normal mode
+ */
+protected int
+tty_cookedmode(el)
+    EditLine *el;
+{				/* set tty in normal setup */
+    if (el->el_tty.t_mode == EX_IO)
+	return (0);
+
+    if (tty_setty(el, &el->el_tty.t_ex) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, "tty_cookedmode: tty_setty: %s\n", 
+		       strerror(errno));
+#endif /* DEBUG_TTY */
+	return -1;
+    }
+    el->el_tty.t_mode = EX_IO;
+    return (0);
+} /* end tty_cookedmode */
+
+
+/* tty_quotemode():
+ *	Turn on quote mode
+ */
+protected int
+tty_quotemode(el)
+    EditLine *el;
+{
+    if (el->el_tty.t_mode == QU_IO)
+	return 0;
+
+    el->el_tty.t_qu = el->el_tty.t_ed;
+
+    el->el_tty.t_qu.c_iflag &= ~el->el_tty.t_t[QU_IO][M_INP].t_clrmask;
+    el->el_tty.t_qu.c_iflag |=  el->el_tty.t_t[QU_IO][M_INP].t_setmask;
+
+    el->el_tty.t_qu.c_oflag &= ~el->el_tty.t_t[QU_IO][M_OUT].t_clrmask;
+    el->el_tty.t_qu.c_oflag |=  el->el_tty.t_t[QU_IO][M_OUT].t_setmask;
+
+    el->el_tty.t_qu.c_cflag &= ~el->el_tty.t_t[QU_IO][M_CTL].t_clrmask;
+    el->el_tty.t_qu.c_cflag |=  el->el_tty.t_t[QU_IO][M_CTL].t_setmask;
+
+    el->el_tty.t_qu.c_lflag &= ~el->el_tty.t_t[QU_IO][M_LIN].t_clrmask;
+    el->el_tty.t_qu.c_lflag |=  el->el_tty.t_t[QU_IO][M_LIN].t_setmask;
+
+    if (tty_setty(el, &el->el_tty.t_qu) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, "QuoteModeOn: tty_setty: %s\n", 
+		       strerror(errno));
+#endif /* DEBUG_TTY */
+	return -1;
+    }
+    el->el_tty.t_mode = QU_IO;
+    return 0;
+} /* end tty_quotemode */
+
+
+/* tty_noquotemode():
+ *	Turn off quote mode
+ */
+protected int
+tty_noquotemode(el)
+    EditLine *el;
+{
+    if (el->el_tty.t_mode != QU_IO)
+	return 0;
+    if (tty_setty(el, &el->el_tty.t_ed) == -1) {
+#ifdef DEBUG_TTY
+	(void) fprintf(el->el_errfile, "QuoteModeOff: tty_setty: %s\n", 
+		       strerror(errno));
+#endif /* DEBUG_TTY */
+	return -1;
+    }
+    el->el_tty.t_mode = ED_IO;
+    return 0;
+}
+
+/* tty_stty():
+ *	Stty builtin
+ */
+protected int
+/*ARGSUSED*/
+tty_stty(el, argc, argv)
+    EditLine *el;
+    int argc;
+    char **argv;
+{
+    ttymodes_t *m;
+    char x, *d;
+    int aflag = 0;
+    char *s;
+    char *name;
+    int z = EX_IO;
+
+    if (argv == NULL)
+	return -1;
+    name = *argv++;
+
+    while (argv && *argv && argv[0][0] == '-' && argv[0][2] == '\0') 
+	switch (argv[0][1]) {
+	case 'a':
+	    aflag++;
+	    argv++;
+	    break;
+	case 'd':
+	    argv++;
+	    z = ED_IO;
+	    break;
+	case 'x':
+	    argv++;
+	    z = EX_IO;
+	    break;
+	case 'q':
+	    argv++;
+	    z = QU_IO;
+	    break;
+	default:
+	    (void) fprintf(el->el_errfile, "%s: Unknown switch `%c'.\n",
+			   name, argv[0][1]);
+	    return -1;
+	}
+
+    if (!argv || !*argv) {
+	int i = -1;
+	int len = 0, st = 0, cu;
+	for (m = ttymodes; m->m_name; m++) {
+	    if (m->m_type != i) {
+		(void) fprintf(el->el_outfile, "%s%s", i != -1 ? "\n" : "", 
+			el->el_tty.t_t[z][m->m_type].t_name);
+		i = m->m_type;
+		st = len = strlen(el->el_tty.t_t[z][m->m_type].t_name);
+	    }
+
+	    x = (el->el_tty.t_t[z][i].t_setmask & m->m_value) ? '+' : '\0';
+	    x = (el->el_tty.t_t[z][i].t_clrmask & m->m_value) ? '-' : x;
+
+	    if (x != '\0' || aflag) {
+
+		cu = strlen(m->m_name) + (x != '\0') + 1;
+
+		if (len + cu >= el->el_term.t_size.h) {
+		    (void) fprintf(el->el_outfile, "\n%*s", st, "");
+		    len = st + cu;
+		}
+		else 
+		    len += cu;
+
+		if (x != '\0')
+		    (void) fprintf(el->el_outfile, "%c%s ", x, m->m_name);
+		else
+		    (void) fprintf(el->el_outfile, "%s ", m->m_name);
+	    }
+	}
+	(void) fprintf(el->el_outfile, "\n");
+	return 0;
+    }
+
+    while (argv && (s = *argv++)) {
+	switch (*s) {
+	case '+':
+	case '-':
+	    x = *s++;
+	    break;
+	default:
+	    x = '\0';
+	    break;
+	}
+	d = s;
+	for (m = ttymodes; m->m_name; m++)
+	    if (strcmp(m->m_name, d) == 0)
+		break;
+
+	if (!m->m_name)  {
+	    (void) fprintf(el->el_errfile, "%s: Invalid argument `%s'.\n",
+			   name, d);
+	    return -1;
+	}
+
+	switch (x) {
+	case '+':
+	    el->el_tty.t_t[z][m->m_type].t_setmask |= m->m_value;
+	    el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
+	    break;
+	case '-':
+	    el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
+	    el->el_tty.t_t[z][m->m_type].t_clrmask |= m->m_value;
+	    break;
+	default:
+	    el->el_tty.t_t[z][m->m_type].t_setmask &= ~m->m_value;
+	    el->el_tty.t_t[z][m->m_type].t_clrmask &= ~m->m_value;
+	    break;
+	}
+    }
+    return 0;
+} /* end tty_stty */
+
+
+#ifdef notyet
+/* tty_printchar():
+ *	DEbugging routine to print the tty characters
+ */
+private void
+tty_printchar(el, s)
+    EditLine *el;
+    unsigned char *s;
+{
+    ttyperm_t *m;
+    int i;
+
+    for (i = 0; i < C_NCC; i++) {
+	for (m = el->el_tty.t_t; m->m_name; m++) 
+	    if (m->m_type == M_CHAR && C_SH(i) == m->m_value)
+		break;
+	if (m->m_name)
+	    (void) fprintf(el->el_errfile, "%s ^%c ", m->m_name, s[i] + 'A'-1);
+	if (i % 5 == 0)
+	    (void) fprintf(el->el_errfile, "\n");
+    }
+    (void) fprintf(el->el_errfile, "\n"); 
+}
+#endif /* notyet */
diff --git a/lib/libedit/tty.h b/lib/libedit/tty.h
new file mode 100644
index 00000000000..12da50dcb5b
--- /dev/null
+++ b/lib/libedit/tty.h
@@ -0,0 +1,476 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)tty.h	8.1 (Berkeley) 6/4/93
+ */
+
+/*
+ * el.tty.h: Local terminal header
+ */
+#ifndef _h_el_tty
+#define _h_el_tty
+
+#include "histedit.h"
+#include <termios.h>
+
+/* Define our own since everyone gets it wrong! */
+#define CONTROL(A)	((A) & 037)	
+
+/*
+ * Aix compatible names
+ */
+# if defined(VWERSE) && !defined(VWERASE)
+#  define VWERASE VWERSE
+# endif /* VWERSE && !VWERASE */
+
+# if defined(VDISCRD) && !defined(VDISCARD)
+#  define VDISCARD VDISCRD
+# endif /* VDISCRD && !VDISCARD */
+
+# if defined(VFLUSHO) && !defined(VDISCARD)
+#  define VDISCARD VFLUSHO
+# endif  /* VFLUSHO && VDISCARD */
+
+# if defined(VSTRT) && !defined(VSTART)
+#  define VSTART VSTRT
+# endif /* VSTRT && ! VSTART */
+
+# if defined(VSTAT) && !defined(VSTATUS)
+#  define VSTATUS VSTAT
+# endif /* VSTAT && ! VSTATUS */
+
+# ifndef ONLRET
+#  define ONLRET 0
+# endif /* ONLRET */
+
+# ifndef TAB3
+#  ifdef OXTABS
+#   define TAB3 OXTABS
+#  else
+#   define TAB3 0
+#  endif /* OXTABS */
+# endif /* !TAB3 */
+
+# if defined(OXTABS) && !defined(XTABS)
+#  define XTABS OXTABS
+# endif /* OXTABS && !XTABS */
+
+# ifndef ONLCR
+#  define ONLCR 0
+# endif /* ONLCR */
+
+# ifndef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN */
+
+# ifndef ECHOCTL
+#  define ECHOCTL 0
+# endif /* ECHOCTL */
+
+# ifndef PARENB
+#  define PARENB 0
+# endif /* PARENB */
+
+# ifndef EXTPROC
+#  define EXTPROC 0
+# endif /* EXTPROC */
+
+# ifndef FLUSHO
+#  define FLUSHO  0
+# endif /* FLUSHO */
+
+
+# if defined(VDISABLE) && !defined(_POSIX_VDISABLE)
+#  define _POSIX_VDISABLE VDISABLE
+# endif /* VDISABLE && ! _POSIX_VDISABLE */
+
+/*
+ * Work around ISC's definition of IEXTEN which is
+ * XCASE!
+ */
+# ifdef ISC
+#  if defined(IEXTEN) && defined(XCASE)
+#   if IEXTEN == XCASE
+#    undef IEXTEN
+#    define IEXTEN 0
+#   endif /* IEXTEN == XCASE */
+#  endif /* IEXTEN && XCASE */
+#  if defined(IEXTEN) && !defined(XCASE)
+#   define XCASE IEXTEN
+#   undef IEXTEN
+#   define IEXTEN 0
+#  endif /* IEXTEN && !XCASE */
+# endif /* ISC */
+
+/*
+ * Work around convex weirdness where turning off IEXTEN makes us
+ * lose all postprocessing!
+ */
+#if defined(convex) || defined(__convex__)
+# if defined(IEXTEN) && IEXTEN != 0
+#  undef IEXTEN
+#  define IEXTEN 0
+# endif /* IEXTEN != 0 */
+#endif /* convex || __convex__ */
+
+
+
+#ifndef _POSIX_VDISABLE
+# define _POSIX_VDISABLE ((unsigned char) -1)
+#endif /* _POSIX_VDISABLE */
+
+#if !defined(CREPRINT) && defined(CRPRNT)
+# define CREPRINT CRPRNT
+#endif /* !CREPRINT && CRPRNT */
+#if !defined(CDISCARD) && defined(CFLUSH)
+# define CDISCARD CFLUSH
+#endif /* !CDISCARD && CFLUSH */
+
+#ifndef CINTR
+# define CINTR		CONTROL('c')
+#endif /* CINTR */
+#ifndef CQUIT
+# define CQUIT		034	/* ^\ */
+#endif /* CQUIT */
+#ifndef CERASE
+# define CERASE		0177	/* ^? */
+#endif /* CERASE */
+#ifndef CKILL
+# define CKILL		CONTROL('u')
+#endif /* CKILL */
+#ifndef CEOF
+# define CEOF		CONTROL('d')
+#endif /* CEOF */
+#ifndef CEOL
+# define CEOL		_POSIX_VDISABLE
+#endif /* CEOL */
+#ifndef CEOL2
+# define CEOL2		_POSIX_VDISABLE
+#endif /* CEOL2 */
+#ifndef CSWTCH
+# define CSWTCH		_POSIX_VDISABLE
+#endif /* CSWTCH */
+#ifndef CDSWTCH
+# define CDSWTCH	_POSIX_VDISABLE
+#endif /* CDSWTCH */
+#ifndef CERASE2
+# define CERASE2	_POSIX_VDISABLE
+#endif /* CERASE2 */
+#ifndef CSTART
+# define CSTART		CONTROL('q')
+#endif /* CSTART */
+#ifndef CSTOP
+# define CSTOP		CONTROL('s')
+#endif /* CSTOP */
+#ifndef CSUSP
+# define CSUSP		CONTROL('z')
+#endif /* CSUSP */
+#ifndef CDSUSP
+# define CDSUSP		CONTROL('y')
+#endif /* CDSUSP */
+
+#ifdef hpux
+
+# ifndef CREPRINT
+#  define CREPRINT	_POSIX_VDISABLE
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	_POSIX_VDISABLE
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	_POSIX_VDISABLE
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	_POSIX_VDISABLE
+# endif /* CWERASE */
+
+#else /* !hpux */
+
+# ifndef CREPRINT
+#  define CREPRINT	CONTROL('r')
+# endif /* CREPRINT */
+# ifndef CDISCARD
+#  define CDISCARD	CONTROL('o')
+# endif /* CDISCARD */
+# ifndef CLNEXT
+#  define CLNEXT	CONTROL('v')
+# endif /* CLNEXT */
+# ifndef CWERASE
+#  define CWERASE	CONTROL('w')
+# endif /* CWERASE */
+
+#endif /* hpux */
+
+#ifndef CSTATUS
+# define CSTATUS	CONTROL('t')
+#endif /* CSTATUS */
+#ifndef CPAGE
+# define CPAGE		' '
+#endif /* CPAGE */
+#ifndef CPGOFF
+# define CPGOFF		CONTROL('m')
+#endif /* CPGOFF */
+#ifndef CKILL2
+# define CKILL2		_POSIX_VDISABLE
+#endif /* CKILL2 */
+#ifndef CBRK
+# ifndef masscomp
+#  define CBRK		0377
+# else
+#  define CBRK		'\0'
+# endif /* masscomp */
+#endif /* CBRK */
+#ifndef CMIN
+# define CMIN		CEOF
+#endif /* CMIN */
+#ifndef CTIME
+# define CTIME		CEOL
+#endif /* CTIME */
+
+/*
+ * Fix for sun inconsistency. On termio VSUSP and the rest of the
+ * ttychars > NCC are defined. So we undefine them.
+ */
+#if defined(TERMIO) || defined(POSIX)
+# if defined(POSIX) && defined(NCCS)
+#  define NUMCC		NCCS
+# else
+#  ifdef NCC
+#   define NUMCC	NCC
+#  endif /* NCC */
+# endif /* POSIX && NCCS */
+# ifdef NUMCC
+#  ifdef VINTR
+#   if NUMCC <= VINTR
+#    undef VINTR
+#   endif /* NUMCC <= VINTR */
+#  endif /* VINTR */
+#  ifdef VQUIT
+#   if NUMCC <= VQUIT
+#    undef VQUIT
+#   endif /* NUMCC <= VQUIT */
+#  endif /* VQUIT */
+#  ifdef VERASE
+#   if NUMCC <= VERASE
+#    undef VERASE
+#   endif /* NUMCC <= VERASE */
+#  endif /* VERASE */
+#  ifdef VKILL
+#   if NUMCC <= VKILL
+#    undef VKILL
+#   endif /* NUMCC <= VKILL */
+#  endif /* VKILL */
+#  ifdef VEOF
+#   if NUMCC <= VEOF
+#    undef VEOF
+#   endif /* NUMCC <= VEOF */
+#  endif /* VEOF */
+#  ifdef VEOL
+#   if NUMCC <= VEOL
+#    undef VEOL
+#   endif /* NUMCC <= VEOL */
+#  endif /* VEOL */
+#  ifdef VEOL2
+#   if NUMCC <= VEOL2
+#    undef VEOL2
+#   endif /* NUMCC <= VEOL2 */
+#  endif /* VEOL2 */
+#  ifdef VSWTCH
+#   if NUMCC <= VSWTCH
+#    undef VSWTCH
+#   endif /* NUMCC <= VSWTCH */
+#  endif /* VSWTCH */
+#  ifdef VDSWTCH
+#   if NUMCC <= VDSWTCH
+#    undef VDSWTCH
+#   endif /* NUMCC <= VDSWTCH */
+#  endif /* VDSWTCH */
+#  ifdef VERASE2
+#   if NUMCC <= VERASE2
+#    undef VERASE2
+#   endif /* NUMCC <= VERASE2 */
+#  endif /* VERASE2 */
+#  ifdef VSTART
+#   if NUMCC <= VSTART
+#    undef VSTART
+#   endif /* NUMCC <= VSTART */
+#  endif /* VSTART */
+#  ifdef VSTOP
+#   if NUMCC <= VSTOP
+#    undef VSTOP
+#   endif /* NUMCC <= VSTOP */
+#  endif /* VSTOP */
+#  ifdef VWERASE
+#   if NUMCC <= VWERASE
+#    undef VWERASE
+#   endif /* NUMCC <= VWERASE */
+#  endif /* VWERASE */
+#  ifdef VSUSP
+#   if NUMCC <= VSUSP
+#    undef VSUSP
+#   endif /* NUMCC <= VSUSP */
+#  endif /* VSUSP */
+#  ifdef VDSUSP
+#   if NUMCC <= VDSUSP
+#    undef VDSUSP
+#   endif /* NUMCC <= VDSUSP */
+#  endif /* VDSUSP */
+#  ifdef VREPRINT
+#   if NUMCC <= VREPRINT
+#    undef VREPRINT
+#   endif /* NUMCC <= VREPRINT */
+#  endif /* VREPRINT */
+#  ifdef VDISCARD
+#   if NUMCC <= VDISCARD
+#    undef VDISCARD
+#   endif /* NUMCC <= VDISCARD */
+#  endif /* VDISCARD */
+#  ifdef VLNEXT
+#   if NUMCC <= VLNEXT
+#    undef VLNEXT
+#   endif /* NUMCC <= VLNEXT */
+#  endif /* VLNEXT */
+#  ifdef VSTATUS
+#   if NUMCC <= VSTATUS
+#    undef VSTATUS
+#   endif /* NUMCC <= VSTATUS */
+#  endif /* VSTATUS */
+#  ifdef VPAGE
+#   if NUMCC <= VPAGE
+#    undef VPAGE
+#   endif /* NUMCC <= VPAGE */
+#  endif /* VPAGE */
+#  ifdef VPGOFF
+#   if NUMCC <= VPGOFF
+#    undef VPGOFF
+#   endif /* NUMCC <= VPGOFF */
+#  endif /* VPGOFF */
+#  ifdef VKILL2
+#   if NUMCC <= VKILL2
+#    undef VKILL2
+#   endif /* NUMCC <= VKILL2 */
+#  endif /* VKILL2 */
+#  ifdef VBRK
+#   if NUMCC <= VBRK
+#    undef VBRK
+#   endif /* NUMCC <= VBRK */
+#  endif /* VBRK */
+#  ifdef VMIN
+#   if NUMCC <= VMIN
+#    undef VMIN
+#   endif /* NUMCC <= VMIN */
+#  endif /* VMIN */
+#  ifdef VTIME
+#   if NUMCC <= VTIME
+#    undef VTIME
+#   endif /* NUMCC <= VTIME */
+#  endif /* VTIME */
+# endif /* NUMCC */
+#endif /* !POSIX */
+
+#define C_INTR		 0
+#define C_QUIT		 1
+#define C_ERASE		 2
+#define C_KILL		 3
+#define C_EOF		 4
+#define C_EOL		 5
+#define C_EOL2		 6
+#define C_SWTCH		 7
+#define C_DSWTCH	 8
+#define C_ERASE2	 9
+#define C_START		10
+#define C_STOP		11
+#define C_WERASE	12
+#define C_SUSP		13
+#define C_DSUSP		14
+#define C_REPRINT	15
+#define C_DISCARD	16
+#define C_LNEXT		17
+#define C_STATUS	18
+#define C_PAGE		19
+#define C_PGOFF		20
+#define C_KILL2		21
+#define C_BRK		22
+#define C_MIN		23
+#define C_TIME		24
+#define C_NCC		25
+#define C_SH(A)		(1 << (A))
+
+/*
+ * Terminal dependend data structures
+ */
+#define EX_IO	0	/* while we are executing	*/
+#define ED_IO	1	/* while we are editing		*/
+#define TS_IO	2	/* new mode from terminal	*/
+#define QU_IO	2	/* used only for quoted chars	*/
+#define NN_IO	3	/* The number of entries	*/
+
+#define M_INP	0
+#define M_OUT	1
+#define M_CTL	2
+#define M_LIN	3
+#define M_CHAR	4
+#define M_NN	5
+
+typedef struct { 
+    char *t_name;
+    int  t_setmask;
+    int  t_clrmask;
+} ttyperm_t[NN_IO][M_NN];
+
+typedef unsigned char ttychar_t[NN_IO][C_NCC];
+
+protected int	tty_init	__P((EditLine *));
+protected void	tty_end		__P((EditLine *));
+protected int	tty_stty	__P((EditLine *, int, char**));
+protected int	tty_rawmode	__P((EditLine *));
+protected int	tty_cookedmode	__P((EditLine *));
+protected int	tty_quotemode	__P((EditLine *));
+protected int	tty_noquotemode	__P((EditLine *));
+protected void	tty_bind_char	__P((EditLine *, int));
+
+typedef struct {
+    ttyperm_t t_t;
+    ttychar_t t_c;
+    struct termios t_ex, t_ed, t_ts;
+    int t_tabs;
+    int t_eight;
+    speed_t t_speed;
+    int t_mode;
+    unsigned char t_vdisable;
+} el_tty_t;
+
+
+#endif /* _h_el_tty */
diff --git a/lib/libedit/vi.c b/lib/libedit/vi.c
new file mode 100644
index 00000000000..030ee2286b0
--- /dev/null
+++ b/lib/libedit/vi.c
@@ -0,0 +1,986 @@
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Christos Zoulas of Cornell University.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if !defined(lint) && !defined(SCCSID)
+static char sccsid[] = "@(#)vi.c	8.1 (Berkeley) 6/4/93";
+#endif /* not lint && not SCCSID */
+
+/*
+ * vi.c: Vi mode commands.
+ */
+#include "sys.h"
+#include "el.h"
+
+private el_action_t cv_action __P((EditLine *, int));
+
+/* cv_action():
+ *	Handle vi actions.
+ */
+private el_action_t
+cv_action(el, c)
+    EditLine *el;
+    int c;
+{
+    register char *cp, *kp;
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	el->el_chared.c_vcmd.action = NOP;
+	el->el_chared.c_vcmd.pos = 0;
+	
+	el->el_chared.c_undo.isize = 0;
+	el->el_chared.c_undo.dsize = 0;
+	kp = el->el_chared.c_undo.buf;
+	for (cp = el->el_line.buffer; cp < el->el_line.lastchar; cp++) {
+	    *kp++ = *cp;
+	    el->el_chared.c_undo.dsize++;
+	}
+		
+	el->el_chared.c_undo.action = INSERT;
+	el->el_chared.c_undo.ptr  = el->el_line.buffer;
+	el->el_line.lastchar = el->el_line.buffer;
+	el->el_line.cursor   = el->el_line.buffer;
+	if (c & INSERT)
+	    el->el_map.current = el->el_map.key;
+	    
+	return CC_REFRESH;
+    }
+
+    el->el_chared.c_vcmd.pos = el->el_line.cursor;
+    el->el_chared.c_vcmd.action = c;
+    return CC_ARGHACK;
+
+#ifdef notdef
+    /*
+     * I don't think that this is needed. But we keep it for now
+     */
+    else if (el_chared.c_vcmd.action == NOP) {
+	el->el_chared.c_vcmd.pos = el->el_line.cursor;
+	el->el_chared.c_vcmd.action = c;
+	return CC_ARGHACK;
+    }
+    else {
+	el->el_chared.c_vcmd.action = 0;
+	el->el_chared.c_vcmd.pos = 0;
+	return CC_ERROR;
+    }
+#endif
+}
+
+
+/* cv_paste():
+ *	Paste previous deletion before or after the cursor
+ */
+protected el_action_t
+cv_paste(el, c)
+    EditLine *el;
+    int c;
+{
+    char *ptr;
+    c_undo_t *un = &el->el_chared.c_undo;
+#ifdef DEBUG_PASTE
+    (void) fprintf(el->el_errfile, "Paste: %x \"%s\" +%d -%d\n", 
+		   un->action, un->buf, un->isize, un->dsize);
+#endif
+    if (un->isize == 0)
+	return CC_ERROR;
+
+    if (!c && el->el_line.cursor < el->el_line.lastchar)
+	el->el_line.cursor++;
+    ptr = el->el_line.cursor;
+	
+    c_insert(el, un->isize);
+    if (el->el_line.cursor + un->isize > el->el_line.lastchar)
+	return CC_ERROR;
+    (void) memcpy(ptr, un->buf, un->isize);
+    return CC_REFRESH;
+}
+
+
+/* vi_paste_next(): 
+ *	Vi paste previous deletion to the right of the cursor
+ *	[p]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_paste_next(el, c)
+    EditLine *el;
+    int c;
+{
+    return cv_paste(el, 0);
+}
+
+
+/* vi_paste_prev(): 
+ *	Vi paste previous deletion to the left of the cursor
+ *	[P]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_paste_prev(el, c)
+    EditLine *el;
+    int c;
+{
+    return cv_paste(el, 1);
+}
+
+
+/* vi_prev_space_word(): 
+ *	Vi move to the previous space delimited word
+ *	[B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_space_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.buffer)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv_prev_word(el, el->el_line.cursor, 
+				      el->el_line.buffer, 
+			 	      el->el_state.argument, 
+				      cv__isword); 
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+
+    return CC_CURSOR;
+}
+
+
+/* vi_prev_word(): 
+ *	Vi move to the previous word
+ *	[B]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.buffer)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv_prev_word(el, el->el_line.cursor, 
+				      el->el_line.buffer, 
+			 	      el->el_state.argument, 
+				      ce__isword); 
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+
+    return CC_CURSOR;
+}
+
+
+/* vi_next_space_word(): 
+ *	Vi move to the next space delimited word
+ *	[W]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_space_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv_next_word(el, el->el_line.cursor, 
+				      el->el_line.lastchar, 
+				      el->el_state.argument, 
+				      cv__isword);
+
+    if (el->el_map.type == MAP_VI)
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+
+    return CC_CURSOR;
+}
+
+/* vi_next_word(): 
+ *	Vi move to the next word
+ *	[w]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv_next_word(el, el->el_line.cursor, 
+				      el->el_line.lastchar, 
+				      el->el_state.argument,
+				      ce__isword);
+
+    if (el->el_map.type == MAP_VI)
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	    cv_delfini(el);
+	    return CC_REFRESH;
+	}
+
+    return CC_CURSOR;
+}
+
+
+
+/* vi_change_case(): 
+ *	Vi change case of character under the cursor and advance one character
+ *	[~]
+ */
+protected el_action_t
+vi_change_case(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor < el->el_line.lastchar) {
+	c = *el->el_line.cursor;
+	if (isupper(c))
+	    *el->el_line.cursor++ = tolower(c);
+	else if (islower(c))
+	    *el->el_line.cursor++ = toupper(c);
+	else
+	    el->el_line.cursor++;
+	re_fastaddc(el);
+	return CC_NORM;
+    }
+    return CC_ERROR;
+}
+
+
+/* vi_change_meta(): 
+ *	Vi change prefix command
+ *	[c]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_change_meta(el, c)
+    EditLine *el;
+    int c;
+{
+    /*
+     * Delete with insert == change: first we delete and then we leave in
+     * insert mode.
+     */
+    return cv_action(el, DELETE|INSERT);
+}
+
+
+/* vi_insert_at_bol(): 
+ *	Vi enter insert mode at the beginning of line
+ *	[I]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_insert_at_bol(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_line.cursor = el->el_line.buffer;
+    el->el_chared.c_vcmd.ins = el->el_line.cursor;
+
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.action = DELETE;
+
+    el->el_map.current = el->el_map.key;
+    return CC_CURSOR;
+}
+
+
+/* vi_replace_char(): 
+ *	Vi replace character under the cursor with the next character typed
+ *	[r]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_replace_char(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_map.current = el->el_map.key;
+    el->el_state.inputmode = MODE_REPLACE_1;
+    el->el_chared.c_undo.action = CHANGE;
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.isize = 0;
+    el->el_chared.c_undo.dsize = 0;
+    return CC_NORM;
+}
+
+
+/* vi_replace_mode(): 
+ *	Vi enter replace mode
+ *	[R]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_replace_mode(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_map.current = el->el_map.key;
+    el->el_state.inputmode = MODE_REPLACE;
+    el->el_chared.c_undo.action = CHANGE;
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.isize = 0;
+    el->el_chared.c_undo.dsize = 0;
+    return CC_NORM;
+}
+
+
+/* vi_substitute_char(): 
+ *	Vi replace character under the cursor and enter insert mode
+ *	[r]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_substitute_char(el, c)
+    EditLine *el;
+    int c;
+{
+    c_delafter(el, el->el_state.argument);
+    el->el_map.current = el->el_map.key;
+    return CC_REFRESH;
+}
+
+
+/* vi_substitute_line(): 
+ *	Vi substitute entire line
+ *	[S]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_substitute_line(el, c)
+    EditLine *el;
+    int c;
+{
+    (void) em_kill_line(el, 0);
+    el->el_map.current = el->el_map.key;
+    return CC_REFRESH;
+}
+
+
+/* vi_change_to_eol(): 
+ *	Vi change to end of line
+ *	[C]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_change_to_eol(el, c)
+    EditLine *el;
+    int c;
+{
+    (void) ed_kill_line(el, 0);
+    el->el_map.current = el->el_map.key;
+    return CC_REFRESH;
+}
+
+
+/* vi_insert():
+ *	Vi enter insert mode
+ *	[i]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_insert(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_map.current = el->el_map.key;
+
+    el->el_chared.c_vcmd.ins = el->el_line.cursor;
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.action = DELETE;
+
+    return CC_NORM;
+}
+
+
+/* vi_add():
+ *	Vi enter insert mode after the cursor 
+ *	[a]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_add(el, c)
+    EditLine *el;
+    int c;
+{
+    int ret;
+    el->el_map.current = el->el_map.key;
+    if (el->el_line.cursor < el->el_line.lastchar) {
+	el->el_line.cursor++;
+	if (el->el_line.cursor > el->el_line.lastchar)
+	    el->el_line.cursor = el->el_line.lastchar;
+	ret = CC_CURSOR;
+    }
+    else
+	ret = CC_NORM;
+
+    el->el_chared.c_vcmd.ins = el->el_line.cursor;
+    el->el_chared.c_undo.ptr = el->el_line.cursor;
+    el->el_chared.c_undo.action = DELETE;
+
+    return ret;
+}
+
+
+/* vi_add_at_eol():
+ *	Vi enter insert mode at end of line
+ *	[A]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_add_at_eol(el, c)
+    EditLine *el;
+    int c;
+{
+    el->el_map.current = el->el_map.key;
+    el->el_line.cursor = el->el_line.lastchar;
+
+    /* Mark where insertion begins */
+    el->el_chared.c_vcmd.ins = el->el_line.lastchar; 
+    el->el_chared.c_undo.ptr = el->el_line.lastchar;
+    el->el_chared.c_undo.action = DELETE;
+    return CC_CURSOR;
+}
+
+
+/* vi_delete_meta():
+ *	Vi delete prefix command 
+ *	[d]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_delete_meta(el, c)
+    EditLine *el;
+    int c;
+{
+    return cv_action(el, DELETE);
+}
+
+
+/* vi_end_word():
+ *	Vi move to the end of the current space delimited word 
+ *	[E] 
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_end_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv__endword(el->el_line.cursor, el->el_line.lastchar, 
+				     el->el_state.argument);
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	el->el_line.cursor++;
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+
+    return CC_CURSOR;
+}
+
+
+/* vi_to_end_word():
+ *	Vi move to the end of the current word
+ *	[e]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_end_word(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_line.cursor == el->el_line.lastchar)
+	return CC_ERROR;
+
+    el->el_line.cursor = cv__endword(el->el_line.cursor, el->el_line.lastchar, 
+				     el->el_state.argument);
+
+    if (el->el_chared.c_vcmd.action & DELETE) {
+	el->el_line.cursor++;
+	cv_delfini(el);
+	return CC_REFRESH;
+    }
+
+    return CC_CURSOR;
+}
+
+
+/* vi_undo():
+ *	Vi undo last change
+ *	[u]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_undo(el, c)
+    EditLine *el;
+    int c;
+{
+    char *cp, *kp;
+    char temp;
+    int	 i, size;
+    c_undo_t *un = &el->el_chared.c_undo;
+
+#ifdef DEBUG_UNDO
+    (void) fprintf(el->el_errfile, "Undo: %x \"%s\" +%d -%d\n", 
+		   un->action, un->buf, un->isize, un->dsize);
+#endif
+    switch (un->action) {
+    case DELETE:
+	if (un->dsize == 0) 
+	    return CC_NORM;
+
+	(void) memcpy(un->buf, un->ptr, un->dsize);
+	for (cp = un->ptr; cp <= el->el_line.lastchar; cp++)
+	    *cp = cp[un->dsize];
+
+	el->el_line.lastchar -= un->dsize;
+	el->el_line.cursor   =  un->ptr;
+	
+	un->action = INSERT;
+	un->isize = un->dsize;
+	un->dsize = 0;
+	break;
+
+    case DELETE|INSERT:
+	size = un->isize - un->dsize;
+	if (size > 0) 
+	    i = un->dsize;
+	else 
+	    i = un->isize;
+	cp = un->ptr;
+	kp = un->buf;
+	while (i-- > 0) {
+	    temp = *kp;
+	    *kp++ = *cp;
+	    *cp++ = temp;
+	}
+	if (size > 0) {
+	    el->el_line.cursor = cp;
+	    c_insert(el, size);
+	    while (size-- > 0 && cp < el->el_line.lastchar) {
+		temp = *kp;
+		*kp++ = *cp;
+		*cp++ = temp;
+	    }
+	}
+	else if (size < 0) {
+	    size = -size;
+	    for (; cp <= el->el_line.lastchar; cp++) {
+		*kp++ = *cp;
+		*cp = cp[size];
+	    }
+	    el->el_line.lastchar -= size;
+	}
+	el->el_line.cursor = un->ptr;
+	i = un->dsize;
+	un->dsize = un->isize;
+	un->isize = i;
+	break;
+
+    case INSERT:
+	if (un->isize == 0) 
+	    return CC_NORM;
+
+	el->el_line.cursor = un->ptr;
+	c_insert(el, un->isize);
+	memcpy(un->ptr, un->buf, un->isize);
+	un->action = DELETE;
+	un->dsize = un->isize;
+	un->isize = 0;
+	break;
+
+    case CHANGE:
+	if (un->isize == 0) 
+	    return CC_NORM;
+
+	el->el_line.cursor = un->ptr;
+	size = (int) (el->el_line.cursor - el->el_line.lastchar); 
+	if (size < un->isize)
+	    size = un->isize;
+	cp = un->ptr;
+	kp = un->buf;
+	for(i = 0; i < size; i++) {
+	    temp = *kp;
+	    *kp++ = *cp;
+	    *cp++ = temp;
+	}
+	un->dsize = 0;
+	break;
+
+    default:
+	return CC_ERROR;
+    }
+
+    return CC_REFRESH;
+}
+
+
+/* vi_command_mode():
+ *	Vi enter command mode (use alternative key bindings)
+ *	[<ESC>]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_command_mode(el, c)
+    EditLine *el;
+    int c;
+{
+    int size;
+    /* [Esc] cancels pending action */
+    el->el_chared.c_vcmd.ins = 0;
+    el->el_chared.c_vcmd.action = NOP;	
+    el->el_chared.c_vcmd.pos = 0;
+
+    el->el_state.doingarg = 0;
+    size = el->el_chared.c_undo.ptr - el->el_line.cursor;
+    if (size < 0)
+	size = -size;
+    if (el->el_chared.c_undo.action == (INSERT|DELETE) ||
+        el->el_chared.c_undo.action == DELETE)
+	el->el_chared.c_undo.dsize = size;
+    else
+	el->el_chared.c_undo.isize = size;
+
+    el->el_state.inputmode = MODE_INSERT;
+    el->el_map.current = el->el_map.alt;
+#ifdef VI_MOVE
+    if (el->el_line.cursor > el->el_line.buffer)
+	el->el_line.cursor--;
+#endif
+    return CC_CURSOR;
+}
+
+/* vi_zero():
+ *	Vi move to the beginning of line 
+ *	[0]
+ */
+protected el_action_t
+vi_zero(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_state.doingarg) {
+	if (el->el_state.argument > 1000000)
+	    return CC_ERROR;
+	el->el_state.argument = 
+		(el->el_state.argument * 10) + (c - '0');
+	return CC_ARGHACK;
+    }
+    else {
+	el->el_line.cursor = el->el_line.buffer;
+	if (el->el_chared.c_vcmd.action & DELETE) {
+	   cv_delfini(el);
+	   return CC_REFRESH;
+        }
+	return CC_CURSOR;
+    }
+}
+
+
+/* vi_delete_prev_char():
+ * 	Vi move to previous character (backspace) 
+ *	[^H]
+ */ 
+protected el_action_t
+/*ARGSUSED*/
+vi_delete_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_chared.c_vcmd.ins == 0) 
+	return CC_ERROR;
+
+    if (el->el_chared.c_vcmd.ins > 
+	el->el_line.cursor - el->el_state.argument)
+	return CC_ERROR;
+
+    c_delbefore(el, el->el_state.argument);	
+    el->el_line.cursor -= el->el_state.argument;
+
+    return CC_REFRESH;
+} /* end v_del_char_prev  */
+
+
+/* vi_list_or_eof():
+ *	Vi list choices for completion or indicate end of file if empty line
+ *	[^D]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_list_or_eof(el, c)
+    EditLine *el;
+    int c;
+{
+#ifdef notyet
+    if (el->el_line.cursor == el->el_line.lastchar && 
+	el->el_line.cursor == el->el_line.buffer) {
+#endif
+	term_overwrite(el, STReof, 4);	/* then do a EOF */
+	term__flush();
+	return CC_EOF;
+#ifdef notyet
+    }
+    else {
+	re_goto_bottom(el);
+	*el->el_line.lastchar = '\0';	/* just in case */
+	return CC_LIST_CHOICES;
+    }
+#endif
+}
+
+
+/* vi_kill_line_prev():
+ *	Vi cut from beginning of line to cursor 
+ *	[^U]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_kill_line_prev(el, c)
+    EditLine *el;
+    int c;
+{
+    char *kp, *cp;
+
+    cp = el->el_line.buffer;
+    kp = el->el_chared.c_kill.buf;
+    while (cp < el->el_line.cursor)
+	*kp++ = *cp++;		/* copy it */
+    el->el_chared.c_kill.last = kp;
+    c_delbefore(el, el->el_line.cursor - el->el_line.buffer);
+    el->el_line.cursor = el->el_line.buffer;		/* zap! */
+    return CC_REFRESH;
+}
+
+
+/* vi_search_prev():
+ *	Vi search history previous
+ *	[?]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_search_prev(el, c)
+    EditLine *el;
+    int c;
+{
+    return cv_search(el, ED_SEARCH_PREV_HISTORY);
+}
+
+
+/* vi_search_next():
+ *	Vi search history next
+ *	[/]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_search_next(el, c)
+    EditLine *el;
+    int c;
+{
+    return cv_search(el, ED_SEARCH_NEXT_HISTORY);
+}
+
+
+/* vi_repeat_search_next():
+ *	Vi repeat current search in the same search direction
+ *	[n]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_search_next(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_search.patlen == 0) 
+	return CC_ERROR;
+    else
+	return cv_repeat_srch(el, el->el_search.patdir);
+}
+
+
+/* vi_repeat_search_prev():
+ *	Vi repeat current search in the opposite search direction
+ *	[N]
+ */
+/*ARGSUSED*/
+protected el_action_t
+vi_repeat_search_prev(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_search.patlen == 0) 
+	return CC_ERROR;
+    else
+	return cv_repeat_srch(el, 
+			      el->el_search.patdir == ED_SEARCH_PREV_HISTORY ?
+			      ED_SEARCH_NEXT_HISTORY : ED_SEARCH_PREV_HISTORY);
+}
+
+
+/* vi_next_char():
+ *	Vi move to the character specified next
+ *	[f]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_next_char(el, c)
+    EditLine *el;
+    int c;
+{
+    char ch;
+
+    if (el_getc(el, &ch) != 1)
+	return ed_end_of_file(el, 0);
+
+    el->el_search.chadir = CHAR_FWD;
+    el->el_search.chacha = ch;
+
+    return cv_csearch_fwd(el, ch, el->el_state.argument, 0);
+
+}
+
+
+/* vi_prev_char():
+ *	Vi move to the character specified previous
+ *	[F]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    char ch;
+
+    if (el_getc(el, &ch) != 1)
+	return ed_end_of_file(el, 0);
+
+    el->el_search.chadir = CHAR_BACK;
+    el->el_search.chacha = ch;
+
+    return cv_csearch_back(el, ch, el->el_state.argument, 0);
+}
+
+
+/* vi_to_next_char():
+ *	Vi move up to the character specified next
+ *	[t]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_next_char(el, c)
+    EditLine *el;
+    int c;
+{
+    char ch;
+
+    if (el_getc(el, &ch) != 1)
+	return ed_end_of_file(el, 0);
+
+    return cv_csearch_fwd(el, ch, el->el_state.argument, 1);
+
+}
+
+
+/* vi_to_prev_char():
+ *	Vi move up to the character specified previous
+ *	[T]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_to_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    char ch;
+    if (el_getc(el, &ch) != 1)
+	return ed_end_of_file(el, 0);
+
+    return cv_csearch_back(el, ch, el->el_state.argument, 1);
+}
+
+
+/* vi_repeat_next_char():
+ *	Vi repeat current character search in the same search direction
+ *	[;]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_next_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_search.chacha == 0)
+	return CC_ERROR;
+
+    return el->el_search.chadir == CHAR_FWD ? 
+	cv_csearch_fwd(el, el->el_search.chacha, el->el_state.argument, 0) : 
+        cv_csearch_back(el, el->el_search.chacha, el->el_state.argument, 0);
+}
+
+
+/* vi_repeat_prev_char():
+ *	Vi repeat current character search in the opposite search direction
+ *	[,]
+ */
+protected el_action_t
+/*ARGSUSED*/
+vi_repeat_prev_char(el, c)
+    EditLine *el;
+    int c;
+{
+    if (el->el_search.chacha == 0)
+	return CC_ERROR;
+
+    return el->el_search.chadir == CHAR_BACK ? 
+	cv_csearch_fwd(el, el->el_search.chacha, el->el_state.argument, 0) : 
+        cv_csearch_back(el, el->el_search.chacha, el->el_state.argument, 0);
+}