2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * parse.c: Parse an Empire command line
30 * Known contributors to this file:
39 * Parse user command in BUF.
41 * Set ARG[0] to point to the command name.
42 * Set ARG[1..N] to point to arguments, where N is the number of
43 * arguments. Set ARG[N+1..127] to NULL.
44 * If *CONDP is not null, recognize conditional argument syntax, and
45 * set *CONDP to the conditional argument if present, else NULL.
46 * Command name and arguments are copied into SPACE[], whose size must
47 * be at least strlen(BUF) + 1.
48 * If *REDIR is not null, recognize redirection syntax, and set *REDIR
49 * to UTF-8 redirection string if present, else NULL.
50 * Return number of slots used in ARG[], or -1 on error.
53 parse(char *buf, char **arg, char **condp, char *space, char **redir)
65 for (argnum = 0; *buf && argnum < 127;) {
70 if (redir && (*buf == '>' || *buf == '|')) {
75 for (bp2 = bp1; *buf;) {
76 if (!quoted && isspace(*buf)) {
84 if (*buf >= 0x20 && *buf <= 0x7e)
91 if (*bp2 == '?' && condp != NULL) {
98 for (fs = argnum; fs < 128; fs++)