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 * @(#)parse.c 8.1 (Berkeley) 6/4/93
33 * $NetBSD: parse.c,v 1.22 2005/05/29 04:58:15 lukem Exp $
34 * $DragonFly: src/lib/libedit/parse.c,v 1.5 2005/11/13 11:58:30 corecode Exp $
40 * parse.c: parse an editline extended command
55 private const struct {
57 int (*func)(EditLine *, int, const char **);
60 { "echotc", term_echotc },
61 { "edit", el_editmode },
62 { "history", hist_command },
63 { "telltc", term_telltc },
64 { "settc", term_settc },
65 { "setty", tty_stty },
71 * Parse a line and dispatch it
74 parse_line(EditLine *el, const char *line)
81 tok_str(tok, line, &argc, &argv);
82 argc = el_parse(el, argc, argv);
92 el_parse(EditLine *el, int argc, const char *argv[])
99 ptr = strchr(argv[0], ':');
106 l = ptr - argv[0] - 1;
107 tprog = (char *) el_malloc(l + 1);
110 (void) strncpy(tprog, argv[0], l);
113 l = el_match(el->el_prog, tprog);
120 for (i = 0; cmds[i].name != NULL; i++)
121 if (strcmp(cmds[i].name, ptr) == 0) {
122 i = (*cmds[i].func) (el, argc, argv);
130 * Parse a string of the form ^<char> \<odigit> \<char> and return
131 * the appropriate character or -1 if the escape is not valid
134 parse__escape(const char **ptr)
148 c = '\007'; /* Bell */
151 c = '\010'; /* Backspace */
154 c = '\011'; /* Horizontal Tab */
157 c = '\012'; /* New Line */
160 c = '\013'; /* Vertical Tab */
163 c = '\014'; /* Form Feed */
166 c = '\015'; /* Carriage Return */
169 c = '\033'; /* Escape */
182 for (cnt = 0, c = 0; cnt < 3; cnt++) {
184 if (ch < '0' || ch > '7') {
188 c = (c << 3) | (ch - '0');
190 if ((c & 0xffffff00) != 0)
199 } else if (*p == '^') {
201 c = (*p == '?') ? '\177' : (*p & 0237);
209 * Parse the escapes from in and put the raw string out
212 parse__string(char *out, const char *in)
225 if ((n = parse__escape(&in)) == -1)
231 if (in[1] == '-' && in[2] != '\0') {
246 * Return the command number for the command string given
247 * or -1 if one is not found
250 parse_cmd(EditLine *el, const char *cmd)
254 for (b = el->el_map.help; b->name != NULL; b++)
255 if (strcmp(b->name, cmd) == 0)