MINOR: regex: Use native PCRE API.
The pcreposix layer (in the pcre projetc) execute strlen to find
thlength of the string. When we are using the function "regex_exex*2",
the length is used to add a final \0, when pcreposix is executed a
strlen is executed to compute the length.
If we are using a native PCRE api, the length is provided as an
argument, and these operations disappear.
This is useful because PCRE regex are more used than POSIC regex.
diff --git a/src/regex.c b/src/regex.c
index 2292002..dda666d 100644
--- a/src/regex.c
+++ b/src/regex.c
@@ -156,7 +156,7 @@
*/
int regex_exec_match(const struct my_regex *preg, const char *subject,
size_t nmatch, regmatch_t pmatch[]) {
-#ifdef USE_PCRE_JIT
+#if defined(USE_PCRE) || defined(USE_PCRE_JIT)
int ret;
int matches[MAX_MATCH * 3];
int enmatch;
@@ -216,7 +216,7 @@
*/
int regex_exec_match2(const struct my_regex *preg, char *subject, int length,
size_t nmatch, regmatch_t pmatch[]) {
-#ifdef USE_PCRE_JIT
+#if defined(USE_PCRE) || defined(USE_PCRE_JIT)
int ret;
int matches[MAX_MATCH * 3];
int enmatch;
@@ -272,7 +272,7 @@
int regex_comp(const char *str, struct my_regex *regex, int cs, int cap, char **err)
{
-#ifdef USE_PCRE_JIT
+#if defined(USE_PCRE) || defined(USE_PCRE_JIT)
int flags = 0;
const char *error;
int erroffset;
@@ -288,6 +288,7 @@
return 0;
}
+#ifdef USE_PCRE_JIT
regex->extra = pcre_study(regex->reg, PCRE_STUDY_JIT_COMPILE, &error);
if (!regex->extra) {
pcre_free(regex->reg);
@@ -295,6 +296,9 @@
return 0;
}
#else
+ regex->extra = NULL;
+#endif
+#else
int flags = REG_EXTENDED;
if (!cs)