/* $OpenBSD: term.c,v 1.10 2003/06/02 20:18:40 millert Exp $ */ /* $NetBSD: term.c,v 1.8 1997/01/23 14:02:49 mrg Exp $ */ /*- * 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. 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) #if 0 static char sccsid[] = "@(#)term.c 8.1 (Berkeley) 6/4/93"; #else static const char rcsid[] = "$OpenBSD: term.c,v 1.10 2003/06/02 20:18:40 millert Exp $"; #endif #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 #include #include #include #include #include "termcap.h" /* XXX: should be */ #include #include #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(EditLine *); private void term_free_display(EditLine *); private void term_alloc_display(EditLine *); private void term_alloc(EditLine *, struct termcapstr *, char *); private void term_init_arrow(EditLine *); private void term_reset_arrow(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(int)); 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)strlcpy(*str, cap, tlen + 1); return; } /* * New string is longer; see if we have enough space to append */ if (el->el_term.t_loc + 3 < TC_BUFSIZE) { tlen = TC_BUFSIZE - el->el_term.t_loc; (void)strlcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap, tlen); 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; } tlen = TC_BUFSIZE - el->el_term.t_loc; (void)strlcpy(*str = &el->el_term.t_buf[el->el_term.t_loc], cap, tlen); 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 (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 ridiculous: %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 ridiculous: %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 ridiculous: %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 ridiculous: %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; }