2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2018, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire 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 3 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, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * sarg.c: Parse selection arguments
29 * Known contributors to this file:
31 * Markus Armbruster, 2004-2010
41 #include "prototypes.h"
47 * #1, lx:ly,hx:hy --> NS_AREA
48 * @x,y:dist --> NS_DIST
49 * %d or %d/%d/%d --> NS_LIST
50 * ~ or letter --> NS_GROUP
53 * or 0 for none of the above.
65 if (c == '#' || strchr(str, ','))
69 if (c == '~' || isalpha(c))
75 sarg_xy(char *str, coord *xp, coord *yp)
80 x = strtox(str, &str);
81 if (x < 0 || *str++ != ',')
83 y = strtoy(str, &str);
84 if (y < 0 || (*str != 0 && !isspace(*str)))
88 np = getnatp(player->cnum);
95 * translate #1 or lx:ly,hx:hy into a result range struct
96 * returns absolute coords
99 sarg_area(char *str, struct range *rp)
103 struct realmstr realm;
108 * realm #X where (X > 0 && X < MAXNOR)
109 * Assumes realms are in abs coordinates
112 rlm = strtol(str, &end, 10);
113 if (end == str || (*end != 0 && !isspace(*end))
114 || rlm < 0 || MAXNOR <= rlm)
118 getrealm(rlm, player->cnum, &realm);
125 * full map specification
127 * ly, hy are optional.
129 rp->lx = rp->hx = strtox(str, &str);
133 rp->hx = strtox(str + 1, &str);
139 rp->ly = rp->hy = strtoy(str, &str);
143 rp->hy = strtoy(str + 1, &str);
147 if (*str != 0 && !isspace(*str))
149 np = getnatp(player->cnum);
150 rp->lx = xabs(np, rp->lx);
151 rp->hx = xabs(np, rp->hx);
152 rp->ly = yabs(np, rp->ly);
153 rp->hy = yabs(np, rp->hy);
160 * translate @x,y:int into
164 sarg_range(char *str, coord *xp, coord *yp, int *dist)
173 x = strtox(str, &str);
174 if (x < 0 || *str++ != ',')
176 y = strtoy(str, &str);
177 if (y < 0 || *str++ != ':')
179 d = strtol(str, &end, 10);
180 if (end == str || (*end != 0 && !isspace(*end)) || d < 0)
183 np = getnatp(player->cnum);
190 * list of idents; id/id/id/id/id
193 sarg_list(char *str, int *list, int max)
201 n = strtol(str, &end, 10);
202 if (end == str || n < 0) {
203 pr("Illegal character '%c'\n", *str);
206 for (j = 0; j < i; j++) {
212 pr("List too long (limit is %d)\n", max);
218 } while (*str++ == '/');
220 if (str[-1] != 0 && !isspace(str[-1])) {
221 pr("Expecting '/', got '%c'\n", str[-1]);