From c2216b2616b124c58902b584fcf458ffbc4e2e06 Mon Sep 17 00:00:00 2001
From: Ervin Hegedus <airween@gmail.com>
Date: Sat, 10 May 2025 13:34:56 +0200
Subject: [PATCH] fix: set 'rc' value for fill ovector correctly

---
 standalone/regex.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/standalone/regex.c b/standalone/regex.c
index b70c031d..3a68a094 100644
--- a/standalone/regex.c
+++ b/standalone/regex.c
@@ -171,6 +171,11 @@ if (nmatch > 0)
       pcre2_match_data_free(match_data);
       pcre2_match_context_free(match_context);
   }
+  /*
+    pcre2_match() returns one more than the highest numbered capturing pair
+    that has been set (for example, 1 if there are no captures) - see pcre2_match's manual
+  */
+  rc = pcre2_ret - 1;
 }
 #else
 rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string, (int)strlen(string),