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
 14typedef struct {
 15	const char *clpattern;
 16	const char *tpattern;
 17	Bool isfloat;
 18} Rule;
 19
 20typedef struct {
 21	regex_t *clregex;
 22	regex_t *tregex;
 23} RReg;
 24
 25/* static */
 26
 27TAGS
 28RULES
 29
 30static RReg *rreg = NULL;
 31static unsigned int len = 0;
 32
 33static void
 34commit()
 35{
 36	/* asserts sel != NULL */
 37	settitle(sel);
 38	if(!isvisible(sel))
 39		arrange(NULL);
 40	else
 41		drawstatus();
 42}
 43
 44/* extern */
 45
 46Client *
 47getnext(Client *c)
 48{
 49	for(; c && !isvisible(c); c = c->next);
 50	return c;
 51}
 52
 53Client *
 54getprev(Client *c)
 55{
 56	for(; c && !isvisible(c); c = c->prev);
 57	return c;
 58}
 59
 60void
 61initrregs()
 62{
 63	unsigned int i;
 64	regex_t *reg;
 65
 66	if(rreg)
 67		return;
 68	len = sizeof(rule) / sizeof(rule[0]);
 69	rreg = emallocz(len * sizeof(RReg));
 70
 71	for(i = 0; i < len; i++) {
 72		if(rule[i].clpattern) {
 73			reg = emallocz(sizeof(regex_t));
 74			if(regcomp(reg, rule[i].clpattern, 0))
 75				free(reg);
 76			else
 77				rreg[i].clregex = reg;
 78		}
 79		if(rule[i].tpattern) {
 80			reg = emallocz(sizeof(regex_t));
 81			if(regcomp(reg, rule[i].tpattern, 0))
 82				free(reg);
 83			else
 84				rreg[i].tregex = reg;
 85		}
 86	}
 87}
 88
 89void
 90settags(Client *c)
 91{
 92	char prop[512];
 93	unsigned int i, j;
 94	regmatch_t tmp;
 95	Bool matched = False;
 96	XClassHint ch;
 97
 98	if(XGetClassHint(dpy, c->win, &ch)) {
 99		snprintf(prop, sizeof(prop), "%s:%s:%s",
100				ch.res_class ? ch.res_class : "",
101				ch.res_name ? ch.res_name : "", c->name);
102		for(i = 0; !matched && i < len; i++)
103			if(rreg[i].clregex && !regexec(rreg[i].clregex, prop, 1, &tmp, 0)) {
104				c->isfloat = rule[i].isfloat;
105				for(j = 0; rreg[i].tregex && j < ntags; j++) {
106					if(!regexec(rreg[i].tregex, tags[j], 1, &tmp, 0)) {
107						matched = True;
108						c->tags[j] = True;
109					}
110				}
111			}
112		if(ch.res_class)
113			XFree(ch.res_class);
114		if(ch.res_name)
115			XFree(ch.res_name);
116	}
117	if(!matched)
118		for(i = 0; i < ntags; i++)
119			c->tags[i] = seltag[i];
120	for(i = 0; i < ntags && !c->tags[i]; i++);
121	c->weight = i;
122}
123
124void
125tag(Arg *arg)
126{
127	unsigned int i;
128
129	if(!sel)
130		return;
131
132	for(i = 0; i < ntags; i++)
133		sel->tags[i] = False;
134	sel->tags[arg->i] = True;
135	commit();
136}
137
138void
139toggletag(Arg *arg)
140{
141	unsigned int i;
142
143	if(!sel)
144		return;
145
146	sel->tags[arg->i] = !sel->tags[arg->i];
147	for(i = 0; i < ntags && !sel->tags[i]; i++);
148	if(i == ntags)
149		sel->tags[arg->i] = True;
150	commit();
151}