From 5bf35f661b7a73e892f6181f22988e5531960501 Mon Sep 17 00:00:00 2001
From: ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069>
Date: Mon, 24 Feb 2020 17:29:00 +0000
Subject: [PATCH] Fix bad lookbehind compilation when preceded by a DEFINE
 group.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1228 6239d852-aaf2-0410-a92c-79f79f948069
Petr Písař: Ported to 10.34.
---
 src/pcre2_compile.c  | 4 ++++
 testdata/testinput1  | 3 +++
 testdata/testoutput1 | 4 ++++
 3 files changed, 11 insertions(+)

diff --git a/src/pcre2_compile.c b/src/pcre2_compile.c
index 628503c..8083338 100644
--- a/src/pcre2_compile.c
+++ b/src/pcre2_compile.c
@@ -9588,6 +9588,10 @@ for (; *pptr != META_END; pptr++)
     break;
 
     case META_COND_DEFINE:
+    pptr += SIZEOFFSET;
+    nestlevel++;
+    break;
+
     case META_COND_NAME:
     case META_COND_NUMBER:
     case META_COND_RNAME:
diff --git a/testdata/testinput1 b/testdata/testinput1
index 959d4b8..6135681 100644
--- a/testdata/testinput1
+++ b/testdata/testinput1
@@ -6399,4 +6399,7 @@ ef) x/x,mark
 "(?<=X(?(DEFINE)(Y))(?1))."
     AXYZ
 
+"(?(DEFINE)(?<foo>bar))(?<![-a-z0-9])word"
+    word
+
 # End of testinput1 
diff --git a/testdata/testoutput1 b/testdata/testoutput1
index dfb6366..ca23e91 100644
--- a/testdata/testoutput1
+++ b/testdata/testoutput1
@@ -10129,4 +10129,8 @@ No match
     AXYZ
  0: Z
 
+"(?(DEFINE)(?<foo>bar))(?<![-a-z0-9])word"
+    word
+ 0: word
+
 # End of testinput1 
-- 
2.21.1