rules.c

   1 /*
   2  * rules.c - rules management
   3  *
   4  * Copyright © 2007 Julien Danjou <julien@danjou.info>
   5  *
   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.
  10  *
  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.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include "util.h"
  23 #include "rules.h"
  24 #include "xutil.h"
  25
  26 extern AwesomeConf globalconf;
  27
  28 regex_t *
  29 rules_compile_regex(char *val)
  30 {
  31     regex_t *reg;
  32
  33     if(val)
  34     {
  35         reg = p_new(regex_t, 1);
  36         if(regcomp(reg, val, REG_EXTENDED))
  37             p_delete(&reg);
  38         else
  39             return reg;
  40     }
  41
  42     return NULL;
  43 }
  44
  45 Bool
  46 client_match_rule(Client *c, Rule *r)
  47 {
  48     char *prop, buf[512];
  49     regmatch_t tmp;
  50     ssize_t len;
  51     XClassHint ch = { 0, 0 };
  52     Bool ret = False;
  53
  54     if(r->prop_r)
  55     {
  56         /* first try to match on name */
  57         XGetClassHint(globalconf.display, c->win, &ch);
  58
  59         len = a_strlen(ch.res_class) + a_strlen(ch.res_name) + a_strlen(c->name);
  60         prop = p_new(char, len + 3);
  61
  62         /* rule matching */
  63         snprintf(prop, len + 3, "%s:%s:%s",
  64                  ch.res_class ? ch.res_class : "", ch.res_name ? ch.res_name : "", c->name);
  65
  66         ret = !regexec(r->prop_r, prop, 1, &tmp, 0);
  67
  68         p_delete(&prop);
  69
  70         if(ch.res_class)
  71             XFree(ch.res_class);
  72         if(ch.res_name)
  73             XFree(ch.res_name);
  74
  75         if(ret)
  76             return True;
  77     }
  78
  79     if(r->xprop
  80        && r->xpropval_r
  81        && xgettextprop(globalconf.display, c->win,
  82                        XInternAtom(globalconf.display, r->xprop, False),
  83                        buf, ssizeof(buf)))
  84         ret = !regexec(r->xpropval_r, buf, 1, &tmp, 0);
  85
  86     return ret;
  87 }
  88
  89 Bool
  90 is_tag_match_rules(Tag *t, Rule *r)
  91 {
  92     regmatch_t tmp;
  93
  94     if(r->tags_r && !regexec(r->tags_r, t->name, 1, &tmp, 0))
  95         return True;
  96
  97     return False;
  98 }
  99
 100 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80