dwm/tag.c

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/*
* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
* See LICENSE file for license details.
*/
#include "dwm.h"
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#include <regex.h>
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <X11/Xutil.h>
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typedef struct {
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const char *clpattern;
const char *tpattern;
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Bool isfloat;
} Rule;
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typedef struct {
regex_t *clregex;
regex_t *tregex;
} RReg;
/* static */
TAGS
RULES
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static RReg *rreg = NULL;
static unsigned int len = 0;
static void
applytag()
{
/* asserts sel != NULL */
settitle(sel);
if(!isvisible(sel))
arrange(NULL);
else
drawstatus();
}
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/* extern */
Client *
getnext(Client *c)
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{
for(; c && !isvisible(c); c = c->next);
return c;
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}
Client *
getprev(Client *c)
{
for(; c && !isvisible(c); c = c->prev);
return c;
}
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void
initrregs()
{
unsigned int i;
regex_t *reg;
if(rreg)
return;
len = sizeof(rule) / sizeof(rule[0]);
rreg = emallocz(len * sizeof(RReg));
for(i = 0; i < len; i++) {
if(rule[i].clpattern) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rule[i].clpattern, 0))
free(reg);
else
rreg[i].clregex = reg;
}
if(rule[i].tpattern) {
reg = emallocz(sizeof(regex_t));
if(regcomp(reg, rule[i].tpattern, 0))
free(reg);
else
rreg[i].tregex = reg;
}
}
}
void
settags(Client *c)
{
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char prop[512];
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unsigned int i, j;
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regmatch_t tmp;
Bool matched = False;
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XClassHint ch;
if(XGetClassHint(dpy, c->win, &ch)) {
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snprintf(prop, sizeof(prop), "%s:%s:%s",
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ch.res_class ? ch.res_class : "",
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ch.res_name ? ch.res_name : "", c->name);
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for(i = 0; !matched && i < len; i++)
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if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
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c->isfloat = rule[i].isfloat;
for(j = 0; rreg[i].tregex && j < ntags; j++) {
if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
matched = True;
c->tags[j] = True;
}
}
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}
if(ch.res_class)
XFree(ch.res_class);
if(ch.res_name)
XFree(ch.res_name);
}
if(!matched)
for(i = 0; i < ntags; i++)
c->tags[i] = seltag[i];
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for(i = 0; i < ntags && !c->tags[i]; i++);
c->weight = i;
}
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void
tag(Arg *arg)
{
unsigned int i;
if(!sel)
return;
for(i = 0; i < ntags; i++)
sel->tags[i] = False;
sel->tags[arg->i] = True;
applytag();
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}
void
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toggletag(Arg *arg)
{
unsigned int i;
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if(!sel)
return;
sel->tags[arg->i] = !sel->tags[arg->i];
for(i = 0; i < ntags && !sel->tags[i]; i++);
if(i == ntags)
sel->tags[arg->i] = True;
applytag();
}