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