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Add case-insensitive search to switch_regex_match() based on code from switch_regex_perform().

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This commit is contained in:
Eliot Gable 2013-12-18 16:19:58 +00:00
parent 635fbc4bd3
commit 713303a2a9
1 changed files with 37 additions and 5 deletions
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42
src/switch_regex.c
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@ -79,6 +79,9 @@ SWITCH_DECLARE(int) switch_regex_perform(const char *field, const char *expressi
if ((opts = strrchr(tmp, '/'))) { if ((opts = strrchr(tmp, '/'))) {
*opts++ = '\0'; *opts++ = '\0';
} else { } else {
/* Note our error */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
"Regular Expression Error expression[%s] missing ending '/' delimeter\n", expression);
goto end; goto end;
} }
expression = tmp; expression = tmp;
@ -212,9 +215,35 @@ SWITCH_DECLARE(switch_status_t) switch_regex_match_partial(const char *target, c
int match_count = 0; /* Number of times the regex was matched */ int match_count = 0; /* Number of times the regex was matched */
int offset_vectors[255]; /* not used, but has to exist or pcre won't even try to find a match */ int offset_vectors[255]; /* not used, but has to exist or pcre won't even try to find a match */
int pcre_flags = 0; int pcre_flags = 0;
uint32_t flags = 0;
char *tmp = NULL;
switch_status_t status = SWITCH_STATUS_FALSE;
if (*expression == '/') {
char *opts = NULL;
tmp = strdup(expression + 1);
assert(tmp);
if ((opts = strrchr(tmp, '/'))) {
*opts++ = '\0';
} else {
/* Note our error */
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
"Regular Expression Error expression[%s] missing ending '/' delimeter\n", expression);
goto end;
}
expression = tmp;
if (opts) {
if (strchr(opts, 'i')) {
flags |= PCRE_CASELESS;
}
if (strchr(opts, 's')) {
flags |= PCRE_DOTALL;
}
}
}
/* Compile the expression */ /* Compile the expression */
pcre_prepared = pcre_compile(expression, 0, &error, &error_offset, NULL); pcre_prepared = pcre_compile(expression, flags, &error, &error_offset, NULL);
/* See if there was an error in the expression */ /* See if there was an error in the expression */
if (error != NULL) { if (error != NULL) {
@ -228,7 +257,7 @@ SWITCH_DECLARE(switch_status_t) switch_regex_match_partial(const char *target, c
"Regular Expression Error expression[%s] error[%s] location[%d]\n", expression, error, error_offset); "Regular Expression Error expression[%s] error[%s] location[%d]\n", expression, error, error_offset);
/* We definitely didn't match anything */ /* We definitely didn't match anything */
return SWITCH_STATUS_FALSE; goto end;
} }
if (*partial) { if (*partial) {
@ -250,14 +279,17 @@ SWITCH_DECLARE(switch_status_t) switch_regex_match_partial(const char *target, c
/* Was it a match made in heaven? */ /* Was it a match made in heaven? */
if (match_count > 0) { if (match_count > 0) {
*partial = 0; *partial = 0;
return SWITCH_STATUS_SUCCESS; switch_goto_status(SWITCH_STATUS_SUCCESS, end);
} else if (match_count == PCRE_ERROR_PARTIAL || match_count == PCRE_ERROR_BADPARTIAL) { } else if (match_count == PCRE_ERROR_PARTIAL || match_count == PCRE_ERROR_BADPARTIAL) {
/* yes it is already set, but the code is clearer this way */ /* yes it is already set, but the code is clearer this way */
*partial = 1; *partial = 1;
return SWITCH_STATUS_SUCCESS; switch_goto_status(SWITCH_STATUS_SUCCESS, end);
} else { } else {
return SWITCH_STATUS_FALSE; goto end;
} }
end:
switch_safe_free(tmp);
return status;
} }
SWITCH_DECLARE(switch_status_t) switch_regex_match(const char *target, const char *expression) SWITCH_DECLARE(switch_status_t) switch_regex_match(const char *target, const char *expression)