2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2004, 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 * sarg.c: Parse selection arguments
30 * Known contributors to this file:
42 #include "prototypes.h"
48 * #1, lx:ly,hx:hy --> NS_AREA
49 * @x,y:dist --> NS_DIST
50 * %d or %d/%d/%d --> NS_LIST
53 * or 0 for none of the above.
65 if (c == '#' || strchr(str, ',') != 0)
69 if (c == '~' || isupper(c) || islower(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);
94 /* returns absolute coords */
96 sarg_getrange(char *str, struct range *rp)
104 * realm #X where (X > 0 && X < MAXNOR)
105 * Assumes realms are in abs coordinates
108 rlm = strtol(str, &end, 10);
109 if (end == str || (*end != 0 && !isspace(*end))
110 || rlm < 0 || MAXNOR <= rlm)
114 np = getnatp(player->cnum);
115 rp->lx = np->nat_b[rlm].b_xl;
116 rp->hx = np->nat_b[rlm].b_xh;
117 rp->ly = np->nat_b[rlm].b_yl;
118 rp->hy = np->nat_b[rlm].b_yh;
121 * full map specification
123 * ly, hy are optional.
125 rp->lx = rp->hx = strtox(str, &str);
129 rp->hx = strtox(str + 1, &str);
135 rp->ly = rp->hy = strtoy(str, &str);
139 rp->hy = strtoy(str + 1, &str);
143 if (*str != 0 && !isspace(*str))
145 np = getnatp(player->cnum);
146 rp->lx = xabs(np, rp->lx);
147 rp->hx = xabs(np, rp->hx);
148 rp->ly = yabs(np, rp->ly);
149 rp->hy = yabs(np, rp->hy);
156 * translate #1 or lx:ly,hx:hy into
157 * a result range struct
160 sarg_area(char *str, struct range *rp)
162 if (!sarg_getrange(str, rp))
165 if (rp->hx >= WORLD_X)
168 if (rp->hy >= WORLD_Y)
175 * translate @x,y:int into
179 sarg_range(char *str, coord *xp, coord *yp, int *dist)
188 x = strtox(str, &str);
189 if (x < 0 || *str++ != ',')
191 y = strtoy(str, &str);
192 if (y < 0 || *str++ != ':')
194 d = strtol(str, &end, 10);
195 if (end == str || (*end != 0 && !isspace(*end)) || d < 0)
198 np = getnatp(player->cnum);
205 * list of idents; id/id/id/id/id
208 sarg_list(char *str, int *list, int max)
216 n = strtol(str, &end, 10);
217 if (end == str || n < 0) {
218 pr("Illegal character '%c'\n", *str);
221 for (j = 0; j < i; j++) {
227 pr("List too long (limit is %d)\n", max);
233 } while (*str++ == '/');
235 if (str[-1] != 0 && !isspace(str[-1])) {
236 pr("Expecting '/', got '%c'\n", str[-1]);