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
 33/* extern */
 34
 35Client *
 36getnext(Client *c) {
 37	for(; c && !isvisible(c); c = c->next);
 38	return c;
 39}
 40
 41Client *
 42getprev(Client *c) {
 43	for(; c && !isvisible(c); c = c->prev);
 44	return c;
 45}
 46
 47void
 48initrregs(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
 75void
 76settags(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
112void
113tag(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
126void
127toggletag(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}