From d18f19a3bbe764218f391932464e841b3f554c73 Mon Sep 17 00:00:00 2001
From: Nils Adermann <naderman@naderman.de>
Date: Sat, 3 May 2014 00:13:06 +0200
Subject: [PATCH] [ticket/12382] Allow nested loops in included files.

They have to reference the fully qualified loop name in BEGIN and END.

PHPBB3-12382
---
 phpBB/phpbb/template/twig/lexer.php               | 15 +++++++++++----
 .../all/template/event/test_event_subloop.html    |  4 ++--
 tests/template/template_events_test.php           |  1 -
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/phpBB/phpbb/template/twig/lexer.php b/phpBB/phpbb/template/twig/lexer.php
index f4efc58540..49577f6e95 100644
--- a/phpBB/phpbb/template/twig/lexer.php
+++ b/phpBB/phpbb/template/twig/lexer.php
@@ -191,9 +191,16 @@ class lexer extends \Twig_Lexer
 		$parent_class = $this;
 		$callback = function ($matches) use ($parent_class, $parent_nodes)
 		{
-			$name = $matches[1];
-			$subset = trim(substr($matches[2], 1, -1)); // Remove parenthesis
-			$body = $matches[3];
+			$hard_parents = explode('.', $matches[1]);
+			array_pop($hard_parents); // ends with .
+			if ($hard_parents)
+			{
+				$parent_nodes = array_merge($hard_parents, $parent_nodes);
+			}
+
+			$name = $matches[2];
+			$subset = trim(substr($matches[3], 1, -1)); // Remove parenthesis
+			$body = $matches[4];
 
 			// Replace <!-- BEGINELSE -->
 			$body = str_replace('<!-- BEGINELSE -->', '{% else %}', $body);
@@ -242,7 +249,7 @@ class lexer extends \Twig_Lexer
 			return "{% for {$name} in {$parent}{$name}{$subset} %}{$body}{% endfor %}";
 		};
 
-		return preg_replace_callback('#<!-- BEGIN ([!a-zA-Z0-9_]+)(\([0-9,\-]+\))? -->(.+?)<!-- END \1 -->#s', $callback, $code);
+		return preg_replace_callback('#<!-- BEGIN ((?:[a-zA-Z0-9_]+\.)*)([!a-zA-Z0-9_]+)(\([0-9,\-]+\))? -->(.+?)<!-- END \1\2 -->#s', $callback, $code);
 	}
 
 	/**
diff --git a/tests/template/datasets/ext_trivial/ext/trivial/styles/all/template/event/test_event_subloop.html b/tests/template/datasets/ext_trivial/ext/trivial/styles/all/template/event/test_event_subloop.html
index 4fdba859f3..98fa1770ba 100644
--- a/tests/template/datasets/ext_trivial/ext/trivial/styles/all/template/event/test_event_subloop.html
+++ b/tests/template/datasets/ext_trivial/ext/trivial/styles/all/template/event/test_event_subloop.html
@@ -1,2 +1,2 @@
-[{event_loop.S_ROW_COUNT}<!-- BEGIN subloop -->[subloop:{event_loop.subloop.S_ROW_COUNT}]
-<!-- END subloop -->]
+[{event_loop.S_ROW_COUNT}<!-- BEGIN event_loop.subloop -->[subloop:{event_loop.subloop.S_ROW_COUNT}]
+<!-- END event_loop.subloop -->]
diff --git a/tests/template/template_events_test.php b/tests/template/template_events_test.php
index d09f22944f..866d42d831 100644
--- a/tests/template/template_events_test.php
+++ b/tests/template/template_events_test.php
@@ -102,7 +102,6 @@ Zeta test event in all',
 				),
 				array(),
 				'event_loop[0[subloop:0]]',
-				'Event files are missing opened parent loops: PHPBB3-12382',
 			),
 		);
 	}