tag.c

   1 /* (C)opyright MMVI-MMVII Anselm R. Garbe <garbeam at gmail dot com>
   2  * See LICENSE file for license details.
   3  */
   4 #include "dwm.h"
   5 #include <regex.h>
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <string.h>
   9 #include <sys/types.h>
  10 #include <X11/Xutil.h>
  11
  12
  13 typedef struct {
  14         const char *clpattern;
  15         const char *tpattern;
  16         Bool isfloat;
  17 } Rule;
  18
  19 typedef struct {
  20         regex_t *clregex;
  21         regex_t *tregex;
  22 } RReg;
  23
  24 /* static */
  25
  26 TAGS
  27 RULES
  28
  29 static RReg *rreg = NULL;
  30 static unsigned int len = 0;
  31
  32 /* extern */
  33
  34 void
  35 compileregexps(void) {
  36         unsigned int i;
  37         regex_t *reg;
  38
  39         if(rreg)
  40                 return;
  41         len = sizeof rule / sizeof rule[0];
  42         rreg = emallocz(len * sizeof(RReg));
  43         for(i = 0; i < len; i++) {
  44                 if(rule[i].clpattern) {
  45                         reg = emallocz(sizeof(regex_t));
  46                         if(regcomp(reg, rule[i].clpattern, REG_EXTENDED))
  47                                 free(reg);
  48                         else
  49                                 rreg[i].clregex = reg;
  50                 }
  51                 if(rule[i].tpattern) {
  52                         reg = emallocz(sizeof(regex_t));
  53                         if(regcomp(reg, rule[i].tpattern, REG_EXTENDED))
  54                                 free(reg);
  55                         else
  56                                 rreg[i].tregex = reg;
  57                 }
  58         }
  59 }
  60
  61 void
  62 settags(Client *c, Client *trans) {
  63         char prop[512];
  64         unsigned int i, j;
  65         regmatch_t tmp;
  66         Bool matched = trans != NULL;
  67         XClassHint ch = { 0 };
  68
  69         if(matched)
  70                 for(i = 0; i < ntags; i++)
  71                         c->tags[i] = trans->tags[i];
  72         else {
  73                 XGetClassHint(dpy, c->win, &ch);
  74                 snprintf(prop, sizeof prop, "%s:%s:%s",
  75                                 ch.res_class ? ch.res_class : "",
  76                                 ch.res_name ? ch.res_name : "", c->name);
  77                 for(i = 0; i < len; i++)
  78                         if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
  79                                 c->isfloat = rule[i].isfloat;
  80                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
  81                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
  82                                                 matched = True;
  83                                                 c->tags[j] = True;
  84                                         }
  85                                 }
  86                         }
  87                 if(ch.res_class)
  88                         XFree(ch.res_class);
  89                 if(ch.res_name)
  90                         XFree(ch.res_name);
  91         }
  92         if(!matched)
  93                 for(i = 0; i < ntags; i++)
  94                         c->tags[i] = seltag[i];
  95 }
  96
  97 void
  98 tag(Arg *arg) {
  99         unsigned int i;
 100
 101         if(!sel)
 102                 return;
 103         for(i = 0; i < ntags; i++)
 104                 sel->tags[i] = (arg->i == -1) ? True : False;
 105         if(arg->i >= 0 && arg->i < ntags)
 106                 sel->tags[arg->i] = True;
 107         arrange();
 108 }
 109
 110 void
 111 toggletag(Arg *arg) {
 112         unsigned int i;
 113
 114         if(!sel)
 115                 return;
 116         sel->tags[arg->i] = !sel->tags[arg->i];
 117         for(i = 0; i < ntags && !sel->tags[i]; i++);
 118         if(i == ntags)
 119                 sel->tags[arg->i] = True;
 120         arrange();
 121 }