2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, 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 files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * parse.c: Parse an Empire command line
30 * Known contributors to this file:
41 * Parse user command in BUF.
43 * Set ARG[0] to point to the command name.
44 * Set ARG[1..N] to point to arguments, where N is the number of
45 * arguments. Set ARG[N+1..127] to NULL.
46 * If *CONDP is not null, recognize conditional argument syntax, and
47 * set *CONDP to the conditional argument if present, else NULL.
48 * Command name and arguments are copied into SPACE[], whose size must
49 * be at least strlen(BUF) + 1.
50 * If *REDIR is not null, recognize redirection syntax, and set *REDIR
51 * to UTF-8 redirection string if present, else NULL.
52 * Return number of slots used in ARG[], or -1 on error.
55 parse(char *buf, char **arg, char **condp, char *space, char **redir)
67 for (argnum = 0; *buf && argnum < 127;) {
72 if (redir && (*buf == '>' || *buf == '|')) {
77 for (bp2 = bp1; *buf;) {
78 if (!quoted && isspace(*buf)) {
86 if (*buf >= 0x20 && *buf <= 0x7e)
93 if (*bp2 == '?' && condp != NULL) {
100 for (fs = argnum; fs < 128; fs++)