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Merge pull request #1151 from ascent12/master

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Change regex to use PCRE
This commit is contained in:
Drew DeVault 2017-04-06 08:51:22 -04:00 committed by GitHub
commit 270e01ce6d
1 changed files with 27 additions and 34 deletions
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61
sway/criteria.c
View File

@ -2,7 +2,7 @@
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <regex.h>
#include <pcre.h>
#include "sway/criteria.h"
#include "sway/container.h"
#include "sway/config.h"
@ -23,17 +23,16 @@ enum criteria_type { // *must* keep in sync with criteria_strings[]
CRIT_LAST
};
// this *must* match the ordering in criteria_type enum
static const char * const criteria_strings[] = {
"class",
"con_mark",
"id",
"instance",
"title",
"urgent", // either "latest" or "oldest" ...
"window_role",
"window_type",
"workspace"
static const char * const criteria_strings[CRIT_LAST] = {
[CRIT_CLASS] = "class",
[CRIT_CON_MARK] = "con_mark",
[CRIT_ID] = "id",
[CRIT_INSTANCE] = "instance",
[CRIT_TITLE] = "title",
[CRIT_URGENT] = "urgent", // either "latest" or "oldest" ...
[CRIT_WINDOW_ROLE] = "window_role",
[CRIT_WINDOW_TYPE] = "window_type",
[CRIT_WORKSPACE] = "workspace"
};
/**
@ -42,18 +41,13 @@ static const char * const criteria_strings[] = {
*/
struct crit_token {
enum criteria_type type;
regex_t *regex;
pcre *regex;
char *raw;
};
static void free_crit_token(struct crit_token *crit) {
if (crit->regex) {
regfree(crit->regex);
free(crit->regex);
}
if (crit->raw) {
free(crit->raw);
}
pcre_free(crit->regex);
free(crit->raw);
free(crit);
}
@ -190,18 +184,17 @@ static char *parse_criteria_name(enum criteria_type *type, char *name) {
}
// Returns error string on failure or NULL otherwise.
static char *generate_regex(regex_t **regex, char *value) {
*regex = calloc(1, sizeof(regex_t));
int err = regcomp(*regex, value, REG_NOSUB);
if (err != 0) {
char *reg_err = malloc(64);
regerror(err, *regex, reg_err, 64);
static char *generate_regex(pcre **regex, char *value) {
const char *reg_err;
int offset;
*regex = pcre_compile(value, PCRE_UTF8 | PCRE_UCP, &reg_err, &offset, NULL);
if (!*regex) {
const char *fmt = "Regex compilation (for '%s') failed: %s";
int len = strlen(fmt) + strlen(value) + strlen(reg_err) - 3;
char *error = malloc(len);
snprintf(error, len, fmt, value, reg_err);
free(reg_err);
return error;
}
return NULL;
@ -245,8 +238,8 @@ ect_cleanup:
return error;
}
static int regex_cmp(const char *item, const regex_t *regex) {
return regexec(regex, item, 0, NULL, 0);
static int regex_cmp(const char *item, const pcre *regex) {
return pcre_exec(regex, NULL, item, strlen(item), 0, 0, NULL, 0);
}
// test a single view if it matches list of criteria tokens (all of them).
@ -266,7 +259,7 @@ static bool criteria_test(swayc_t *cont, list_t *tokens) {
if (focused->class && strcmp(cont->class, focused->class) == 0) {
matches++;
}
} else if (crit->regex && regexec(crit->regex, cont->class, 0, NULL, 0) == 0) {
} else if (crit->regex && regex_cmp(cont->class, crit->regex) == 0) {
matches++;
}
break;
@ -281,7 +274,7 @@ static bool criteria_test(swayc_t *cont, list_t *tokens) {
case CRIT_ID:
if (!cont->app_id) {
// ignore
} else if (crit->regex && regexec(crit->regex, cont->app_id, 0, NULL, 0) == 0) {
} else if (crit->regex && regex_cmp(cont->app_id, crit->regex) == 0) {
matches++;
}
break;
@ -293,7 +286,7 @@ static bool criteria_test(swayc_t *cont, list_t *tokens) {
if (focused->instance && strcmp(cont->instance, focused->instance) == 0) {
matches++;
}
} else if (crit->regex && regexec(crit->regex, cont->instance, 0, NULL, 0) == 0) {
} else if (crit->regex && regex_cmp(cont->instance, crit->regex) == 0) {
matches++;
}
break;
@ -305,7 +298,7 @@ static bool criteria_test(swayc_t *cont, list_t *tokens) {
if (focused->name && strcmp(cont->name, focused->name) == 0) {
matches++;
}
} else if (crit->regex && regexec(crit->regex, cont->name, 0, NULL, 0) == 0) {
} else if (crit->regex && regex_cmp(cont->name, crit->regex) == 0) {
matches++;
}
break;
@ -325,7 +318,7 @@ static bool criteria_test(swayc_t *cont, list_t *tokens) {
if (focused_ws->name && strcmp(cont_ws->name, focused_ws->name) == 0) {
matches++;
}
} else if (crit->regex && regexec(crit->regex, cont_ws->name, 0, NULL, 0) == 0) {
} else if (crit->regex && regex_cmp(cont_ws->name, crit->regex) == 0) {
matches++;
}
break;