tag.c

   1 /* (C)opyright MMVI 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 Client *
  35 getnext(Client *c) {
  36         for(; c && !isvisible(c); c = c->next);
  37         return c;
  38 }
  39
  40 Client *
  41 getprev(Client *c) {
  42         for(; c && !isvisible(c); c = c->prev);
  43         return c;
  44 }
  45
  46 void
  47 initrregs(void) {
  48         unsigned int i;
  49         regex_t *reg;
  50
  51         if(rreg)
  52                 return;
  53         len = sizeof(rule) / sizeof(rule[0]);
  54         rreg = emallocz(len * sizeof(RReg));
  55         for(i = 0; i < len; i++) {
  56                 if(rule[i].clpattern) {
  57                         reg = emallocz(sizeof(regex_t));
  58                         if(regcomp(reg, rule[i].clpattern, 0))
  59                                 free(reg);
  60                         else
  61                                 rreg[i].clregex = reg;
  62                 }
  63                 if(rule[i].tpattern) {
  64                         reg = emallocz(sizeof(regex_t));
  65                         if(regcomp(reg, rule[i].tpattern, 0))
  66                                 free(reg);
  67                         else
  68                                 rreg[i].tregex = reg;
  69                 }
  70         }
  71 }
  72
  73 void
  74 settags(Client *c, Client *trans) {
  75         char prop[512];
  76         unsigned int i, j;
  77         regmatch_t tmp;
  78         Bool matched = trans != NULL;
  79         XClassHint ch;
  80
  81         if(matched) {
  82                 for(i = 0; i < ntags; i++)
  83                         c->tags[i] = trans->tags[i];
  84         }
  85         else if(XGetClassHint(dpy, c->win, &ch)) {
  86                 snprintf(prop, sizeof(prop), "%s:%s:%s",
  87                                 ch.res_class ? ch.res_class : "",
  88                                 ch.res_name ? ch.res_name : "", c->name);
  89                 for(i = 0; !matched && i < len; i++)
  90                         if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
  91                                 c->isfloat = rule[i].isfloat;
  92                                 for(j = 0; rreg[i].tregex && j < ntags; j++) {
  93                                         if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
  94                                                 matched = True;
  95                                                 c->tags[j] = True;
  96                                         }
  97                                 }
  98                         }
  99                 if(ch.res_class)
 100                         XFree(ch.res_class);
 101                 if(ch.res_name)
 102                         XFree(ch.res_name);
 103         }
 104         if(!matched)
 105                 for(i = 0; i < ntags; i++)
 106                         c->tags[i] = seltag[i];
 107         for(c->weight = 0; c->weight < ntags && !c->tags[c->weight]; c->weight++);
 108 }
 109
 110 void
 111 tag(Arg *arg) {
 112         unsigned int i;
 113
 114         if(!sel)
 115                 return;
 116         for(i = 0; i < ntags; i++)
 117                 sel->tags[i] = False;
 118         sel->tags[arg->i] = True;
 119         sel->weight = arg->i;
 120         arrange(NULL);
 121 }
 122
 123 void
 124 toggletag(Arg *arg) {
 125         unsigned int i;
 126
 127         if(!sel)
 128                 return;
 129         sel->tags[arg->i] = !sel->tags[arg->i];
 130         for(i = 0; i < ntags && !sel->tags[i]; i++);
 131         if(i == ntags)
 132                 sel->tags[arg->i] = True;
 133         sel->weight = (i == ntags) ? arg->i : i;
 134         arrange(NULL);
 135 }