2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, 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 * sarg.c: Parse selection arguments
30 * Known contributors to this file:
32 * Markus Armbruster, 2004
45 #include "prototypes.h"
51 * #1, lx:ly,hx:hy --> NS_AREA
52 * @x,y:dist --> NS_DIST
53 * %d or %d/%d/%d --> NS_LIST
54 * ~ or letter --> NS_GROUP
57 * or 0 for none of the above.
69 if (c == '#' || strchr(str, ',') != 0)
73 if (c == '~' || isalpha(c))
79 sarg_xy(char *str, coord *xp, coord *yp)
84 x = strtox(str, &str);
85 if (x < 0 || *str++ != ',')
87 y = strtoy(str, &str);
88 if (y < 0 || (*str != 0 && !isspace(*str)))
92 np = getnatp(player->cnum);
98 /* returns absolute coords */
100 sarg_getrange(char *str, struct range *rp)
104 struct realmstr realm;
109 * realm #X where (X > 0 && X < MAXNOR)
110 * Assumes realms are in abs coordinates
113 rlm = strtol(str, &end, 10);
114 if (end == str || (*end != 0 && !isspace(*end))
115 || rlm < 0 || MAXNOR <= rlm)
119 getrealm(rlm, player->cnum, &realm);
126 * full map specification
128 * ly, hy are optional.
130 rp->lx = rp->hx = strtox(str, &str);
134 rp->hx = strtox(str + 1, &str);
140 rp->ly = rp->hy = strtoy(str, &str);
144 rp->hy = strtoy(str + 1, &str);
148 if (*str != 0 && !isspace(*str))
150 np = getnatp(player->cnum);
151 rp->lx = xabs(np, rp->lx);
152 rp->hx = xabs(np, rp->hx);
153 rp->ly = yabs(np, rp->ly);
154 rp->hy = yabs(np, rp->hy);
161 * translate #1 or lx:ly,hx:hy into
162 * a result range struct
165 sarg_area(char *str, struct range *rp)
167 if (!sarg_getrange(str, rp))
170 if (rp->hx >= WORLD_X)
173 if (rp->hy >= WORLD_Y)
180 * translate @x,y:int into
184 sarg_range(char *str, coord *xp, coord *yp, int *dist)
193 x = strtox(str, &str);
194 if (x < 0 || *str++ != ',')
196 y = strtoy(str, &str);
197 if (y < 0 || *str++ != ':')
199 d = strtol(str, &end, 10);
200 if (end == str || (*end != 0 && !isspace(*end)) || d < 0)
203 np = getnatp(player->cnum);
210 * list of idents; id/id/id/id/id
213 sarg_list(char *str, int *list, int max)
221 n = strtol(str, &end, 10);
222 if (end == str || n < 0) {
223 pr("Illegal character '%c'\n", *str);
226 for (j = 0; j < i; j++) {
232 pr("List too long (limit is %d)\n", max);
238 } while (*str++ == '/');
240 if (str[-1] != 0 && !isspace(str[-1])) {
241 pr("Expecting '/', got '%c'\n", str[-1]);