tag.c
author arg@f00b4r
Thu, 12 Jul 2007 19:45:28 +0200
changeset 921 e0ec0d5d8b1e
parent 910 c13cb8c6b7a5
child 924 5b1caaa31aba
permissions -rw-r--r--
restoring tip to be a working dwm again (switching FONT to terminus in config.arg.h)
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/* See LICENSE file for copyright and license details. */
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#include "dwm.h"
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <X11/Xutil.h>
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/* static */
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typedef struct {
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	const char *prop;
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	const char *tags;
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	Bool isfloating;
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} Rule;
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typedef struct {
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	regex_t *propregex;
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	regex_t *tagregex;
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} Regs;
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TAGS
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RULES
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static Regs *regs = NULL;
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static unsigned int nrules = 0;
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/* extern */
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void
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compileregs(void) {
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	unsigned int i;
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	regex_t *reg;
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	if(regs)
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		return;
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	nrules = sizeof rule / sizeof rule[0];
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	regs = emallocz(nrules * sizeof(Regs));
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	for(i = 0; i < nrules; i++) {
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		if(rule[i].prop) {
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			reg = emallocz(sizeof(regex_t));
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			if(regcomp(reg, rule[i].prop, REG_EXTENDED))
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				free(reg);
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			else
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				regs[i].propregex = reg;
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		}
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		if(rule[i].tags) {
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			reg = emallocz(sizeof(regex_t));
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			if(regcomp(reg, rule[i].tags, REG_EXTENDED))
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				free(reg);
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			else
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				regs[i].tagregex = reg;
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		}
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	}
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}
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Bool
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isvisible(Client *c) {
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	unsigned int i;
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	for(i = 0; i < ntags; i++)
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		if(c->tags[i] && seltag[i])
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			return True;
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	return False;
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}
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void
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settags(Client *c, Client *trans) {
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	char prop[512];
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	unsigned int i, j;
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	regmatch_t tmp;
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	Bool matched = trans != NULL;
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	XClassHint ch = { 0 };
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	if(matched)
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		for(i = 0; i < ntags; i++)
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			c->tags[i] = trans->tags[i];
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	else {
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		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; i < nrules; i++)
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			if(regs[i].propregex && !regexec(regs[i].propregex, prop, 1, &tmp, 0)) {
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				c->isfloating = rule[i].isfloating;
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				for(j = 0; regs[i].tagregex && j < ntags; j++) {
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					if(!regexec(regs[i].tagregex, tags[j], 1, &tmp, 0)) {
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						matched = True;
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						c->tags[j] = True;
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					}
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				}
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			}
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		if(ch.res_class)
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			XFree(ch.res_class);
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		if(ch.res_name)
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			XFree(ch.res_name);
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	}
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	if(!matched)
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		for(i = 0; i < ntags; i++)
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			c->tags[i] = seltag[i];
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}
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void
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tag(const char *arg) {
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	int i;
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	if(!sel)
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		return;
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	for(i = 0; i < ntags; i++)
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		sel->tags[i] = arg == NULL;
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	i = arg ? atoi(arg) : 0;
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	if(i >= 0 && i < ntags)
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		sel->tags[i] = True;
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	lt->arrange();
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}
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void
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toggletag(const char *arg) {
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	int i, j;
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	if(!sel)
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		return;
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	i = arg ? atoi(arg) : 0;
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	sel->tags[i] = !sel->tags[i];
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	for(j = 0; j < ntags && !sel->tags[j]; j++);
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	if(j == ntags)
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		sel->tags[i] = True;
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	lt->arrange();
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}
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void
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toggleview(const char *arg) {
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	int i, j;
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	i = arg ? atoi(arg) : 0;
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	seltag[i] = !seltag[i];
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	for(j = 0; j < ntags && !seltag[j]; j++);
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	if(j == ntags)
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		seltag[i] = True; /* cannot toggle last view */
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	lt->arrange();
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}
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void
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view(const char *arg) {
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	int i;
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	for(i = 0; i < ntags; i++)
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		seltag[i] = arg == NULL;
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	i = arg ? atoi(arg) : 0;
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	if(i >= 0 && i < ntags)
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		seltag[i] = True;
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	lt->arrange();
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}