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-rw-r--r--src/xregex.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/xregex.c b/src/xregex.c
index 484f099..414c366 100644
--- a/src/xregex.c
+++ b/src/xregex.c
@@ -37,6 +37,8 @@ struct bfs_regex {
static int bfs_onig_status;
static OnigEncoding bfs_onig_enc;
+static OnigSyntaxType bfs_onig_syntax_emacs;
+
/** pthread_once() callback. */
static void bfs_onig_once(void) {
// Fall back to ASCII by default
@@ -103,6 +105,10 @@ static void bfs_onig_once(void) {
if (bfs_onig_status != ONIG_NORMAL) {
bfs_onig_enc = NULL;
}
+
+ // https://github.com/kkos/oniguruma/issues/296
+ onig_copy_syntax(&bfs_onig_syntax_emacs, ONIG_SYNTAX_EMACS);
+ bfs_onig_syntax_emacs.op2 |= ONIG_SYN_OP2_QMARK_GROUP_EFFECT;
}
/** Initialize Oniguruma. */
@@ -144,7 +150,7 @@ int bfs_regcomp(struct bfs_regex **preg, const char *pattern, enum bfs_regex_typ
syntax = ONIG_SYNTAX_POSIX_EXTENDED;
break;
case BFS_REGEX_EMACS:
- syntax = ONIG_SYNTAX_EMACS;
+ syntax = &bfs_onig_syntax_emacs;
break;
case BFS_REGEX_GREP:
syntax = ONIG_SYNTAX_GREP;