Reset parsing state after mbrtowc(3) failure

The standard says "if an encoding error occurs ...  the conversion state
is unspecified".

1 files changed, 1 insertions, 0 deletions

diff --git a/text-regex-tre.c b/text-regex-tre.c
index 3f02dcd..cbfc4ee 100644
--- a/text-regex-tre.c
+++ b/text-regex-tre.c
@@ -37,6 +37,7 @@ static int str_next_char(tre_char_t *c, unsigned int *pos_add, void *context) {
 			size_t len = rem < plen ? rem : plen;
 			size_t wclen = mbrtowc(c, it->text, len, &ps);
 			if (wclen == (size_t)-1 && errno == EILSEQ) {
+				ps = (mbstate_t){0};
 				*c = L'\0';
 				text_iterator_codepoint_next(it, NULL);
 				break;