tag.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6 #include <regex.h>
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <sys/types.h>
  11 #include <X11/Xutil.h>
  12
  13
  14 typedef struct {
  15         const char *clpattern;
  16         const char *tpattern;
  17         Bool isfloat;
  18 } Rule;
  19
  20 typedef struct {
  21         regex_t *clregex;
  22         regex_t *tregex;
  23 } RReg;
  24
  25 /* static */
  26
  27 TAGS
  28 RULES
  29
  30 static RReg *rreg = NULL;
  31 static unsigned int len = 0;
  32
  33 /* extern */
  34
  35 Client *
  36 getnext(Client *c)
  37 {
  38         for(; c && !isvisible(c); c = c->next);
  39         return c;
  40 }
  41
  42 Client *
  43 getprev(Client *c)
  44 {
  45         for(; c && !isvisible(c); c = c->prev);
  46         return c;
  47 }
  48
  49 void
  50 initrregs()
  51 {
  52         unsigned int i;
  53         regex_t *reg;
  54
  55         if(rreg)
  56                 return;
  57         len = sizeof(rule) / sizeof(rule[0]);
  58         rreg = emallocz(len * sizeof(RReg));
  59
  60         for(i = 0; i < len; i++) {
  61                 if(rule[i].clpattern) {
  62                         reg = emallocz(sizeof(regex_t));
  63                         if(regcomp(reg, rule[i].clpattern, 0))
  64                                 free(reg);
  65                         else
  66                                 rreg[i].clregex = reg;
  67                 }
  68                 if(rule[i].tpattern) {
  69                         reg = emallocz(sizeof(regex_t));
  70                         if(regcomp(reg, rule[i].tpattern, 0))
  71                                 free(reg);
  72                         else
  73                                 rreg[i].tregex = reg;
  74                 }
  75         }
  76 }
  77
  78 void
  79 settags(Client *c, Client *trans)
  80 {
  81         char prop[512];
  82         unsigned int i, j;
  83         regmatch_t tmp;
  84         Bool matched = trans != NULL;
  85         XClassHint ch;
  86
  87         if(matched) {
  88                 for(i = 0; i < ntags; i++)
  89                         c->tags[i] = trans->tags[i];
  90         }
  91         else if(XGetClassHint(dpy, c->win, &ch)) {
  92                 snprintf(prop, sizeof(prop), "%s:%s:%s",
  93                                 ch.res_class ? ch.res_class : "",
  94                                 ch.res_name ? ch.res_name : "", c->name);
  95                 for(i = 0; !matched && i < len; i++)
  96                         if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
  97                                 c->isfloat = rule[i].isfloat;
  98                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
  99                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
 100                                                 matched = True;
 101                                                 c->tags[j] = True;
 102                                         }
 103                                 }
 104                         }
 105                 if(ch.res_class)
 106                         XFree(ch.res_class);
 107                 if(ch.res_name)
 108                         XFree(ch.res_name);
 109         }
 110         if(!matched)
 111                 for(i = 0; i < ntags; i++)
 112                         c->tags[i] = seltag[i];
 113         for(c->weight = 0; c->weight < ntags && !c->tags[c->weight]; c->weight++);
 114 }
 115
 116 void
 117 tag(Arg *arg)
 118 {
 119         unsigned int i;
 120
 121         if(!sel)
 122                 return;
 123
 124         for(i = 0; i < ntags; i++)
 125                 sel->tags[i] = False;
 126         sel->tags[arg->i] = True;
 127         sel->weight = arg->i;
 128         arrange(NULL);
 129 }
 130
 131 void
 132 toggletag(Arg *arg)
 133 {
 134         unsigned int i;
 135
 136         if(!sel)
 137                 return;
 138
 139         sel->tags[arg->i] = !sel->tags[arg->i];
 140         for(i = 0; i < ntags && !sel->tags[i]; i++);
 141         if(i == ntags)
 142                 sel->tags[arg->i] = True;
 143         sel->weight = (i == ntags) ? arg->i : i;
 144         arrange(NULL);
 145 }