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 "rules.h"
  23 #include "xutil.h"
  24
  25 extern AwesomeConf globalconf;
  26
  27 regex_t *
  28 rules_compile_regex(char *val)
  29 {
  30     regex_t *reg;
  31
  32     if(val)
  33     {
  34         reg = p_new(regex_t, 1);
  35         if(regcomp(reg, val, REG_EXTENDED))
  36             p_delete(&reg);
  37         else
  38             return reg;
  39     }
  40
  41     return NULL;
  42 }
  43
  44 static Bool
  45 client_match_rule(Client *c, Rule *r)
  46 {
  47     char *prop, buf[512];
  48     regmatch_t tmp;
  49     ssize_t len;
  50     XClassHint ch = { 0, 0 };
  51     Bool ret = False;
  52
  53     if(r->prop_r)
  54     {
  55         /* first try to match on name */
  56         XGetClassHint(globalconf.display, c->win, &ch);
  57
  58         len = a_strlen(ch.res_class) + a_strlen(ch.res_name) + a_strlen(c->name);
  59         prop = p_new(char, len + 3);
  60
  61         /* rule matching */
  62         snprintf(prop, len + 3, "%s:%s:%s",
  63                  ch.res_class ? ch.res_class : "", ch.res_name ? ch.res_name : "", c->name);
  64
  65         ret = !regexec(r->prop_r, prop, 1, &tmp, 0);
  66
  67         p_delete(&prop);
  68
  69         if(ch.res_class)
  70             XFree(ch.res_class);
  71         if(ch.res_name)
  72             XFree(ch.res_name);
  73
  74         if(ret)
  75             return True;
  76     }
  77
  78     if(r->xprop
  79        && r->xpropval_r
  80        && xgettextprop(c->win,
  81                        XInternAtom(globalconf.display, r->xprop, False),
  82                        buf, ssizeof(buf)))
  83         ret = !regexec(r->xpropval_r, buf, 1, &tmp, 0);
  84
  85     return ret;
  86 }
  87
  88 Bool
  89 tag_match_rule(Tag *t, Rule *r)
  90 {
  91     regmatch_t tmp;
  92
  93     if(r->tags_r && !regexec(r->tags_r, t->name, 1, &tmp, 0))
  94         return True;
  95
  96     return False;
  97 }
  98
  99 Rule *
 100 rule_matching_client(Client *c)
 101 {
 102     Rule *r;
 103     for(r = globalconf.rules; r; r = r->next)
 104         if(client_match_rule(c, r))
 105             return r;
 106
 107     return NULL;
 108 }
 109
 110 Fuzzy
 111 rules_get_fuzzy_from_str(const char *str)
 112 {
 113     if(!a_strcmp(str, "true") || !a_strcmp(str, "yes"))
 114         return Yes;
 115     else if(!a_strcmp(str, "false") || !a_strcmp(str, "no"))
 116         return No;
 117
 118     return Auto;
 119 }
 120
 121 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80