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Add error message for failed regex initialization

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This commit is contained in:
Andrew Benson 2018-10-28 01:06:23 -07:00
parent f12f1094ed
commit f48a939dbf
1 changed files with 17 additions and 10 deletions
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27
src/menu.c
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@ -21,7 +21,7 @@
#include "utils.h"
static bool is_initialized = false;
static regex_t cregex;
static regex_t url_regex;
struct notification_lock {
struct notification *n;
@ -29,29 +29,36 @@ struct notification_lock {
};
static gpointer context_menu_thread(gpointer data);
static int regex_init(void)
/**
* Initializes regexes needed for matching.
*
* @return true if initialization succeeded
*/
static bool regex_init(void)
{
if (is_initialized)
return 1;
return true;
char *regex =
"\\b(https?://|ftps?://|news://|mailto:|file://|www\\.)"
"[-[:alnum:]_\\@;/?:&=%$.+!*\x27,~#]*"
"(\\([-[:alnum:]_\\@;/?:&=%$.+!*\x27,~#]*\\)|[-[:alnum:]_\\@;/?:&=%$+*~])+";
int ret = regcomp(&cregex, regex, REG_EXTENDED | REG_ICASE);
if (ret != 0) {
LOG_W("Failed to compile regex.");
return 0;
int code = regcomp(&url_regex, regex, REG_EXTENDED | REG_ICASE);
if (code != 0) {
char error_buf[120];
regerror(code, &url_regex, error_buf, sizeof(error_buf));
LOG_W("Failed to compile URL-matching regex: %s", error_buf);
return false;
} else {
is_initialized = true;
return 1;
return true;
}
}
void regex_teardown(void)
{
if (is_initialized) {
regfree(&cregex);
regfree(&url_regex);
is_initialized = false;
}
}
@ -73,7 +80,7 @@ char *extract_urls(const char *to_match)
regmatch_t m;
while (1) {
int nomatch = regexec(&cregex, p, 1, &m, 0);
int nomatch = regexec(&url_regex, p, 1, &m, 0);
if (nomatch) {
return urls;
}