2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Christos Zoulas of Cornell University.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * $NetBSD: parse.c,v 1.13 2000/09/04 22:06:31 lukem Exp $
39 #if !defined(lint) && !defined(SCCSID)
40 static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/4/93";
41 #endif /* not lint && not SCCSID */
42 #include <sys/cdefs.h>
43 __FBSDID("$FreeBSD$");
46 * parse.c: parse an editline extended command
60 #include "tokenizer.h"
63 private const struct {
65 int (*func)(EditLine *, int, char **);
68 { "echotc", term_echotc },
69 { "edit", el_editmode },
70 { "history", hist_list },
71 { "telltc", term_telltc },
72 { "settc", term_settc },
73 { "setty", tty_stty },
79 * Parse a line and dispatch it
82 parse_line(EditLine *el, const char *line)
89 tok_line(tok, line, &argc, &argv);
90 argc = el_parse(el, argc, argv);
100 el_parse(EditLine *el, int argc, char *argv[])
107 ptr = strchr(argv[0], ':');
114 l = ptr - argv[0] - 1;
115 tprog = (char *) el_malloc(l + 1);
118 (void) strncpy(tprog, argv[0], l);
121 l = el_match(el->el_prog, tprog);
128 for (i = 0; cmds[i].name != NULL; i++)
129 if (strcmp(cmds[i].name, ptr) == 0) {
130 i = (*cmds[i].func) (el, argc, argv);
138 * Parse a string of the form ^<char> \<odigit> \<char> and return
139 * the appropriate character or -1 if the escape is not valid
142 parse__escape(const char **const ptr)
156 c = '\007'; /* Bell */
159 c = '\010'; /* Backspace */
162 c = '\011'; /* Horizontal Tab */
165 c = '\012'; /* New Line */
168 c = '\013'; /* Vertical Tab */
171 c = '\014'; /* Form Feed */
174 c = '\015'; /* Carriage Return */
177 c = '\033'; /* Escape */
190 for (cnt = 0, c = 0; cnt < 3; cnt++) {
192 if (ch < '0' || ch > '7') {
196 c = (c << 3) | (ch - '0');
198 if ((c & 0xffffff00) != 0)
207 } else if (*p == '^' && isascii(p[1]) && (p[1] == '?' || isalpha(p[1]))) {
209 c = (*p == '?') ? '\177' : (*p & 0237);
213 return ((unsigned char)c);
216 * Parse the escapes from in and put the raw string out
219 parse__string(char *out, const char *in)
232 if ((n = parse__escape(&in)) == -1)
245 * Return the command number for the command string given
246 * or -1 if one is not found
249 parse_cmd(EditLine *el, const char *cmd)
253 for (b = el->el_map.help; b->name != NULL; b++)
254 if (strcmp(b->name, cmd) == 0)