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)
  80 {
  81         char prop[512];
  82         unsigned int i, j;
  83         regmatch_t tmp;
  84         Bool matched = False;
  85         XClassHint ch;
  86
  87         if(XGetClassHint(dpy, c->win, &ch)) {
  88                 snprintf(prop, sizeof(prop), "%s:%s:%s",
  89                                 ch.res_class ? ch.res_class : "",
  90                                 ch.res_name ? ch.res_name : "", c->name);
  91                 for(i = 0; !matched && i < len; i++)
  92                         if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
  93                                 c->isfloat = rule[i].isfloat;
  94                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
  95                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
  96                                                 matched = True;
  97                                                 c->tags[j] = True;
  98                                         }
  99                                 }
 100                         }
 101                 if(ch.res_class)
 102                         XFree(ch.res_class);
 103                 if(ch.res_name)
 104                         XFree(ch.res_name);
 105         }
 106         if(!matched)
 107                 for(i = 0; i < ntags; i++)
 108                         c->tags[i] = seltag[i];
 109         for(c->weight = 0; c->weight < ntags && !c->tags[c->weight]; c->weight++);
 110 }
 111
 112 void
 113 tag(Arg *arg)
 114 {
 115         unsigned int i;
 116
 117         if(!sel)
 118                 return;
 119
 120         for(i = 0; i < ntags; i++)
 121                 sel->tags[i] = False;
 122         sel->tags[arg->i] = True;
 123         sel->weight = arg->i;
 124         arrange(NULL);
 125 }
 126
 127 void
 128 toggletag(Arg *arg)
 129 {
 130         unsigned int i;
 131
 132         if(!sel)
 133                 return;
 134
 135         sel->tags[arg->i] = !sel->tags[arg->i];
 136         for(i = 0; i < ntags && !sel->tags[i]; i++);
 137         if(i == ntags)
 138                 sel->tags[arg->i] = True;
 139         sel->weight = (i == ntags) ? arg->i : i;
 140         arrange(NULL);
 141 }