Update libedit to bring it into sync with the latest version from NetBSD.

ok deraadt

1 files changed, 96 insertions, 52 deletions

diff --git a/lib/libedit/tokenizer.c b/lib/libedit/tokenizer.c
index 972e26923cf..efd72af5e80 100644
--- a/lib/libedit/tokenizer.c
+++ b/lib/libedit/tokenizer.c
@@ -1,5 +1,5 @@
-/*	$OpenBSD: tokenizer.c,v 1.11 2009/10/27 23:59:28 deraadt Exp $	*/
-/*	$NetBSD: tokenizer.c,v 1.13 2003/10/18 23:48:42 christos Exp $	*/
+/*	$OpenBSD: tokenizer.c,v 1.12 2010/06/30 00:05:35 nicm Exp $	*/
+/*	$NetBSD: tokenizer.c,v 1.18 2010/01/03 18:27:10 christos Exp $	*/
 
 /*-
  * Copyright (c) 1992, 1993
@@ -34,51 +34,54 @@
  */
 
 #include "config.h"
+
+/* We build this file twice, once as NARROW, once as WIDE. */
 /*
  * tokenize.c: Bourne shell like tokenizer
  */
 #include <string.h>
 #include <stdlib.h>
-#include "tokenizer.h"
+#include "histedit.h"
+#include "chartype.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_strdup(a)		strdup(a)
+#define	IFS		STR("\t \n")
+
 #define	tok_malloc(a)		malloc(a)
 #define	tok_free(a)		free(a)
 #define	tok_realloc(a, b)	realloc(a, b)
+#define	tok_strdup(a)		Strdup(a)
 
 
-struct tokenizer {
-	char	*ifs;		/* In field separator			 */
+struct TYPE(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			 */
+	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(Tokenizer *);
+private void FUN(tok,finish)(TYPE(Tokenizer) *);
 
 
-/* tok_finish():
+/* FUN(tok,finish)():
  *	Finish a word in the tokenizer.
  */
 private void
-tok_finish(Tokenizer *tok)
+FUN(tok,finish)(TYPE(Tokenizer) *tok)
 {
 
 	*tok->wptr = '\0';
@@ -91,13 +94,13 @@ tok_finish(Tokenizer *tok)
 }
 
 
-/* tok_init():
+/* FUN(tok,init)():
  *	Initialize the tokenizer
  */
-public Tokenizer *
-tok_init(const char *ifs)
+public TYPE(Tokenizer) *
+FUN(tok,init)(const Char *ifs)
 {
-	Tokenizer *tok = (Tokenizer *) tok_malloc(sizeof(Tokenizer));
+	TYPE(Tokenizer) *tok = tok_malloc(sizeof(TYPE(Tokenizer)));
 
 	if (tok == NULL)
 		return NULL;
@@ -108,14 +111,14 @@ tok_init(const char *ifs)
 	}
 	tok->argc = 0;
 	tok->amax = AINCR;
-	tok->argv = (char **) tok_malloc(sizeof(char *) * tok->amax);
+	tok->argv = tok_malloc(sizeof(*tok->argv) * tok->amax);
 	if (tok->argv == NULL) {
 		tok_free((ptr_t)tok->ifs);
 		tok_free((ptr_t)tok);
 		return NULL;
 	}
 	tok->argv[0] = NULL;
-	tok->wspace = (char *) tok_malloc(WINCR);
+	tok->wspace = tok_malloc(WINCR * sizeof(*tok->wspace));
 	if (tok->wspace == NULL) {
 		tok_free((ptr_t)tok->argv);
 		tok_free((ptr_t)tok->ifs);
@@ -132,11 +135,11 @@ tok_init(const char *ifs)
 }
 
 
-/* tok_reset():
+/* FUN(tok,reset)():
  *	Reset the tokenizer
  */
 public void
-tok_reset(Tokenizer *tok)
+FUN(tok,reset)(TYPE(Tokenizer) *tok)
 {
 
 	tok->argc = 0;
@@ -147,11 +150,11 @@ tok_reset(Tokenizer *tok)
 }
 
 
-/* tok_end():
+/* FUN(tok,end)():
  *	Clean up
  */
 public void
-tok_end(Tokenizer *tok)
+FUN(tok,end)(TYPE(Tokenizer) *tok)
 {
 
 	tok_free((ptr_t) tok->ifs);
@@ -162,22 +165,40 @@ tok_end(Tokenizer *tok)
 
 
 
-/* tok_line():
- *	Bourne shell like tokenizing
- *	Return:
- *		-1: Internal error
- *		 3: Quoted return
- *		 2: Unmatched double quote
- *		 1: Unmatched single quote
- *		 0: Ok
+/* FUN(tok,line)():
+ *	Bourne shell (sh(1)) like tokenizing
+ *	Arguments:
+ *		tok	current tokenizer state (setup with FUN(tok,init)())
+ *		line	line to parse
+ *	Returns:
+ *		-1	Internal error
+ *		 3	Quoted return
+ *		 2	Unmatched double quote
+ *		 1	Unmatched single quote
+ *		 0	Ok
+ *	Modifies (if return value is 0):
+ *		argc	number of arguments
+ *		argv	argument array
+ *		cursorc	if !NULL, argv element containing cursor
+ *		cursorv	if !NULL, offset in argv[cursorc] of cursor
  */
 public int
-tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
+FUN(tok,line)(TYPE(Tokenizer) *tok, const TYPE(LineInfo) *line,
+    int *argc, const Char ***argv, int *cursorc, int *cursoro)
 {
-	const char *ptr;
-
-	for (;;) {
-		switch (*(ptr = line++)) {
+	const Char *ptr;
+	int cc, co;
+
+	cc = co = -1;
+	ptr = line->buffer;
+	for (ptr = line->buffer; ;ptr++) {
+		if (ptr >= line->lastchar)
+			ptr = STR("");
+		if (ptr == line->cursor) {
+			cc = tok->argc;
+			co = (int)(tok->wptr - tok->wstart);
+		}
+		switch (*ptr) {
 		case '\'':
 			tok->flags |= TOK_KEEP;
 			tok->flags &= ~TOK_EAT;
@@ -276,10 +297,7 @@ tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
 			tok->flags &= ~TOK_EAT;
 			switch (tok->quote) {
 			case Q_none:
-				tok_finish(tok);
-				*argv = (const char **)tok->argv;
-				*argc = tok->argc;
-				return (0);
+				goto tok_line_outok;
 
 			case Q_single:
 			case Q_double:
@@ -309,10 +327,7 @@ tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
 					tok->flags &= ~TOK_EAT;
 					return (3);
 				}
-				tok_finish(tok);
-				*argv = (const char **)tok->argv;
-				*argc = tok->argc;
-				return (0);
+				goto tok_line_outok;
 
 			case Q_single:
 				return (1);
@@ -339,8 +354,8 @@ tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
 			tok->flags &= ~TOK_EAT;
 			switch (tok->quote) {
 			case Q_none:
-				if (strchr(tok->ifs, *ptr) != NULL)
-					tok_finish(tok);
+				if (Strchr(tok->ifs, *ptr) != NULL)
+					FUN(tok,finish)(tok);
 				else
 					*tok->wptr++ = *ptr;
 				break;
@@ -371,7 +386,8 @@ tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
 
 		if (tok->wptr >= tok->wmax - 4) {
 			size_t size = tok->wmax - tok->wspace + WINCR;
-			char *s = (char *) tok_realloc(tok->wspace, size);
+			Char *s = tok_realloc(tok->wspace,
+			    size * sizeof(*s));
 			if (s == NULL)
 				return (-1);
 
@@ -388,13 +404,41 @@ tok_line(Tokenizer *tok, const char *line, int *argc, const char ***argv)
 			tok->wmax = s + size;
 		}
 		if (tok->argc >= tok->amax - 4) {
-			char **p;
+			Char **p;
 			tok->amax += AINCR;
-			p = (char **) tok_realloc(tok->argv,
-			    tok->amax * sizeof(char *));
+			p = tok_realloc(tok->argv, tok->amax * sizeof(*p));
 			if (p == NULL)
 				return (-1);
 			tok->argv = p;
 		}
 	}
+ tok_line_outok:
+	if (cc == -1 && co == -1) {
+		cc = tok->argc;
+		co = (int)(tok->wptr - tok->wstart);
+	}
+	if (cursorc != NULL)
+		*cursorc = cc;
+	if (cursoro != NULL)
+		*cursoro = co;
+	FUN(tok,finish)(tok);
+	*argv = (const Char **)tok->argv;
+	*argc = tok->argc;
+	return (0);
+}
+
+/* FUN(tok,str)():
+ *	Simpler version of tok_line, taking a NUL terminated line
+ *	and splitting into words, ignoring cursor state.
+ */
+public int
+FUN(tok,str)(TYPE(Tokenizer) *tok, const Char *line, int *argc,
+    const Char ***argv)
+{
+	TYPE(LineInfo) li;
+
+	memset(&li, 0, sizeof(li));
+	li.buffer = line;
+	li.cursor = li.lastchar = Strchr(line, '\0');
+	return (FUN(tok,line)(tok, &li, argc, argv, NULL, NULL));
 }