From b8a96d789253c91093476f898611d5903799e84e Mon Sep 17 00:00:00 2001
From: Karen Arutyunov <karen@codesynthesis.com>
Date: Thu, 31 Aug 2017 03:43:11 +0300
Subject: Fix regex_replace_ex() to ignore unmatched sub-expression references

---
 tests/regex/testscript | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'tests')

diff --git a/tests/regex/testscript b/tests/regex/testscript
index 1af604c..8291f36 100644
--- a/tests/regex/testscript
+++ b/tests/regex/testscript
@@ -21,7 +21,10 @@
 
     : capture
     :
-    $* abcdefghij '(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)' '$1$10' >aj
+    {
+      $* abcdefghij '(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)' '$1$10'  >aj : matched
+      $* a          '(a)|(b)'                        '$1$2$3' >a  : unmatched
+    }
   }
 
   : perl-escape
@@ -33,7 +36,10 @@
 
     : capture
     :
-    $* abcdefghij '(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)' '\1\10' >aa0
+    {
+      $* abcdefghij '(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)' '\1\10'  >aa0 : matched
+      $* a          '(a)|(b)'                        '\1\2\3' >a   : unmatched
+    }
 
     : upper
     :
-- 
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