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
37 #if !defined(lint) && !defined(SCCSID)
38 static char sccsid[] = "@(#)parse.c 8.1 (Berkeley) 6/4/93";
39 #endif /* not lint && not SCCSID */
42 * parse.c: parse an editline extended command
56 #include "tokenizer.h"
60 int (*func) __P((EditLine *, int, char **));
63 { "echotc", term_echotc },
64 { "history", hist_list },
65 { "telltc", term_telltc },
66 { "settc", term_settc },
67 { "setty", tty_stty },
73 * Parse a line and dispatch it
85 tok_line(tok, line, &argc, &argv);
86 argc = el_parse(el, argc, argv);
95 el_parse(el, argc, argv)
105 ptr = strchr(argv[0], ':');
108 if (! el_match(el->el_prog, argv[0]))
114 for (i = 0; cmds[i].name != NULL; i++)
115 if (strcmp(cmds[i].name, ptr) == 0) {
116 i = (*cmds[i].func)(el, argc, argv);
125 * Parse a string of the form ^<char> \<odigit> \<char> and return
126 * the appropriate character or -1 if the escape is not valid
130 const char ** const ptr;
144 c = '\007'; /* Bell */
147 c = '\010'; /* Backspace */
150 c = '\011'; /* Horizontal Tab */
153 c = '\012'; /* New Line */
156 c = '\013'; /* Vertical Tab */
159 c = '\014'; /* Form Feed */
162 c = '\015'; /* Carriage Return */
165 c = '\033'; /* Escape */
178 for (cnt = 0, c = 0; cnt < 3; cnt++) {
180 if (ch < '0' || ch > '7') {
184 c = (c << 3) | (ch - '0');
186 if ((c & 0xffffff00) != 0)
196 else if (*p == '^' && isascii(p[1]) && (p[1] == '?' || isalpha(p[1]))) {
198 c = (*p == '?') ? '\177' : (*p & 0237);
203 return (unsigned char)c;
207 * Parse the escapes from in and put the raw string out
210 parse__string(out, in)
224 if ((n = parse__escape(&in)) == -1)
236 * Return the command number for the command string given
237 * or -1 if one is not found
246 for (b = el->el_map.help; b->name != NULL; b++)
247 if (strcmp(b->name, cmd) == 0)