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 * @(#)parse.c 8.1 (Berkeley) 6/4/93
37 * $DragonFly: src/lib/libedit/parse.c,v 1.4 2003/11/12 20:21:29 eirikn Exp $
41 * parse.c: parse an editline extended command
55 #include "tokenizer.h"
59 int (*func) (EditLine *, int, char **);
62 { "echotc", term_echotc },
63 { "history", hist_list },
64 { "telltc", term_telltc },
65 { "settc", term_settc },
66 { "setty", tty_stty },
72 * Parse a line and dispatch it
84 tok_line(tok, line, &argc, &argv);
85 argc = el_parse(el, argc, argv);
94 el_parse(el, argc, argv)
104 ptr = strchr(argv[0], ':');
107 if (! el_match(el->el_prog, argv[0]))
113 for (i = 0; cmds[i].name != NULL; i++)
114 if (strcmp(cmds[i].name, ptr) == 0) {
115 i = (*cmds[i].func)(el, argc, argv);
124 * Parse a string of the form ^<char> \<odigit> \<char> and return
125 * the appropriate character or -1 if the escape is not valid
129 const char ** const ptr;
143 c = '\007'; /* Bell */
146 c = '\010'; /* Backspace */
149 c = '\011'; /* Horizontal Tab */
152 c = '\012'; /* New Line */
155 c = '\013'; /* Vertical Tab */
158 c = '\014'; /* Form Feed */
161 c = '\015'; /* Carriage Return */
164 c = '\033'; /* Escape */
177 for (cnt = 0, c = 0; cnt < 3; cnt++) {
179 if (ch < '0' || ch > '7') {
183 c = (c << 3) | (ch - '0');
185 if ((c & 0xffffff00) != 0)
195 else if (*p == '^' && isascii(p[1]) && (p[1] == '?' || isalpha(p[1]))) {
197 c = (*p == '?') ? '\177' : (*p & 0237);
202 return (unsigned char)c;
206 * Parse the escapes from in and put the raw string out
209 parse__string(out, in)
223 if ((n = parse__escape(&in)) == -1)
235 * Return the command number for the command string given
236 * or -1 if one is not found
245 for (b = el->el_map.help; b->name != NULL; b++)
246 if (strcmp(b->name, cmd) == 0)