Study compiled patterns to speed up matching.

1 files changed, 8 insertions, 0 deletions

diff --git a/regexset.c b/regexset.c
index 657978a..c816217 100644
--- a/regexset.c
+++ b/regexset.c
@@ -39,15 +39,19 @@ struct regexset_t *rs_add(const char *text, const char *join) {
 		re_error("text", text, error, erroffset);
 		return NULL;
 	}
+	rs->text_e = pcre_study(rs->text, 0, &error);
 
 	/* Free compiled patterns from this point when failing. */
 
 	rs->join = pcre_compile(join, 0, &error, &erroffset, NULL);
 	if(rs->join == NULL) {
 		pcre_free(rs->text);
+		if(rs->text_e)
+			pcre_free(rs->text_e);
 		re_error("join", join, error, erroffset);
 		return NULL;
 	}
+	rs->join_e = pcre_study(rs->join, 0, &error);
 
 	return rs;
 }
@@ -59,7 +63,11 @@ struct regexset_t *rs_get(int index) {
 void rs_free() {
 	for(int i = 0; i < rs_count; i++) {
 		pcre_free(regexes[i].text);
+		if(regexes[i].text_e)
+			pcre_free(regexes[i].text_e);
 		pcre_free(regexes[i].join);
+		if(regexes[i].join_e)
+			pcre_free(regexes[i].join_e);
 	}
 	free(regexes);
 	regexes = NULL;