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https://github.com/kkos/oniguruma/issues/59
https://github.com/kkos/oniguruma/commit/b690371bbf97794b4a1d3f295d4fb9a8b05d402d
Author: K.Kosako <kosako@sofnec.co.jp>
--- a/regexec.c
+++ b/regexec.c
@@ -3207,18 +3207,25 @@
}
else {
if (reg->dmax != ONIG_INFINITE_DISTANCE) {
- *low = p - reg->dmax;
- if (*low > s) {
- *low = onigenc_get_right_adjust_char_head_with_prev(reg->enc, s,
- *low, (const UChar** )low_prev);
- if (low_prev && IS_NULL(*low_prev))
- *low_prev = onigenc_get_prev_char_head(reg->enc,
- (pprev ? pprev : s), *low);
+ if (p - str < reg->dmax) {
+ *low = (UChar* )str;
+ if (low_prev)
+ *low_prev = onigenc_get_prev_char_head(reg->enc, str, *low);
}
else {
- if (low_prev)
- *low_prev = onigenc_get_prev_char_head(reg->enc,
- (pprev ? pprev : str), *low);
+ *low = p - reg->dmax;
+ if (*low > s) {
+ *low = onigenc_get_right_adjust_char_head_with_prev(reg->enc, s,
+ *low, (const UChar** )low_prev);
+ if (low_prev && IS_NULL(*low_prev))
+ *low_prev = onigenc_get_prev_char_head(reg->enc,
+ (pprev ? pprev : s), *low);
+ }
+ else {
+ if (low_prev)
+ *low_prev = onigenc_get_prev_char_head(reg->enc,
+ (pprev ? pprev : str), *low);
+ }
}
}
}
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