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         for(; c && !isvisible(c); c = c->next);
  38         return c;
  39 }
  40
  41 Client *
  42 getprev(Client *c) {
  43         for(; c && !isvisible(c); c = c->prev);
  44         return c;
  45 }
  46
  47 void
  48 initrregs(void) {
  49         unsigned int i;
  50         regex_t *reg;
  51
  52         if(rreg)
  53                 return;
  54         len = sizeof(rule) / sizeof(rule[0]);
  55         rreg = emallocz(len * sizeof(RReg));
  56
  57         for(i = 0; i < len; i++) {
  58                 if(rule[i].clpattern) {
  59                         reg = emallocz(sizeof(regex_t));
  60                         if(regcomp(reg, rule[i].clpattern, 0))
  61                                 free(reg);
  62                         else
  63                                 rreg[i].clregex = reg;
  64                 }
  65                 if(rule[i].tpattern) {
  66                         reg = emallocz(sizeof(regex_t));
  67                         if(regcomp(reg, rule[i].tpattern, 0))
  68                                 free(reg);
  69                         else
  70                                 rreg[i].tregex = reg;
  71                 }
  72         }
  73 }
  74
  75 void
  76 settags(Client *c, Client *trans) {
  77         char prop[512];
  78         unsigned int i, j;
  79         regmatch_t tmp;
  80         Bool matched = trans != NULL;
  81         XClassHint ch;
  82
  83         if(matched) {
  84                 for(i = 0; i < ntags; i++)
  85                         c->tags[i] = trans->tags[i];
  86         }
  87         else 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         unsigned int i;
 115
 116         if(!sel)
 117                 return;
 118
 119         for(i = 0; i < ntags; i++)
 120                 sel->tags[i] = False;
 121         sel->tags[arg->i] = True;
 122         sel->weight = arg->i;
 123         arrange(NULL);
 124 }
 125
 126 void
 127 toggletag(Arg *arg) {
 128         unsigned int i;
 129
 130         if(!sel)
 131                 return;
 132
 133         sel->tags[arg->i] = !sel->tags[arg->i];
 134         for(i = 0; i < ntags && !sel->tags[i]; i++);
 135         if(i == ntags)
 136                 sel->tags[arg->i] = True;
 137         sel->weight = (i == ntags) ? arg->i : i;
 138         arrange(NULL);
 139 }