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. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $NetBSD: parse.c,v 1.22 2005/05/29 04:58:15 lukem Exp $
35 #if !defined(lint) && !defined(SCCSID)
36 static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/4/93";
37 #endif /* not lint && not SCCSID */
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
42 * parse.c: parse an editline extended command
58 private const struct {
60 int (*func)(EditLine *, int, const char **);
63 { "echotc", term_echotc },
64 { "edit", el_editmode },
65 { "history", hist_command },
66 { "telltc", term_telltc },
67 { "settc", term_settc },
68 { "setty", tty_stty },
74 * Parse a line and dispatch it
77 parse_line(EditLine *el, const char *line)
84 tok_str(tok, line, &argc, &argv);
85 argc = el_parse(el, argc, argv);
95 el_parse(EditLine *el, int argc, const char *argv[])
102 ptr = strchr(argv[0], ':');
109 l = ptr - argv[0] - 1;
110 tprog = (char *) el_malloc(l + 1);
113 (void) strncpy(tprog, argv[0], l);
116 l = el_match(el->el_prog, tprog);
123 for (i = 0; cmds[i].name != NULL; i++)
124 if (strcmp(cmds[i].name, ptr) == 0) {
125 i = (*cmds[i].func) (el, argc, argv);
133 * Parse a string of the form ^<char> \<odigit> \<char> and return
134 * the appropriate character or -1 if the escape is not valid
137 parse__escape(const char **ptr)
151 c = '\007'; /* Bell */
154 c = '\010'; /* Backspace */
157 c = '\011'; /* Horizontal Tab */
160 c = '\012'; /* New Line */
163 c = '\013'; /* Vertical Tab */
166 c = '\014'; /* Form Feed */
169 c = '\015'; /* Carriage Return */
172 c = '\033'; /* Escape */
185 for (cnt = 0, c = 0; cnt < 3; cnt++) {
187 if (ch < '0' || ch > '7') {
191 c = (c << 3) | (ch - '0');
193 if ((c & 0xffffff00) != 0)
202 } else if (*p == '^') {
204 c = (*p == '?') ? '\177' : (*p & 0237);
208 return ((unsigned char)c);
212 * Parse the escapes from in and put the raw string out
215 parse__string(char *out, const char *in)
228 if ((n = parse__escape(&in)) == -1)
234 if (in[1] == '-' && in[2] != '\0') {
249 * Return the command number for the command string given
250 * or -1 if one is not found
253 parse_cmd(EditLine *el, const char *cmd)
257 for (b = el->el_map.help; b->name != NULL; b++)
258 if (strcmp(b->name, cmd) == 0)