From 8b7a42f338ca7315aae11d25e7adb89aaefe7849 Mon Sep 17 00:00:00 2001
From: JoshyPHP <s9e.dev@gmail.com>
Date: Thu, 7 May 2015 16:01:42 +0200
Subject: [ticket/13614] Removed code that relies on phpbb_pcre_utf8_support()

Removed all calls to phpbb_pcre_utf8_support() as well as unreachable code.

PHPBB3-13614
---
 phpBB/includes/functions.php | 38 +++++---------------------------------
 1 file changed, 5 insertions(+), 33 deletions(-)

(limited to 'phpBB/includes/functions.php')

diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index 2ed0eff81c..efb6cec8a5 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -2811,31 +2811,19 @@ function get_preg_expression($mode)
 * Depends on whether installed PHP version supports unicode properties
 *
 * @param string	$word			word template to be replaced
-* @param bool	$use_unicode	whether or not to take advantage of PCRE supporting unicode
 *
 * @return string $preg_expr		regex to use with word censor
 */
-function get_censor_preg_expression($word, $use_unicode = true)
+function get_censor_preg_expression($word)
 {
 	// Unescape the asterisk to simplify further conversions
 	$word = str_replace('\*', '*', preg_quote($word, '#'));
 
-	if ($use_unicode && phpbb_pcre_utf8_support())
-	{
-		// Replace asterisk(s) inside the pattern, at the start and at the end of it with regexes
-		$word = preg_replace(array('#(?<=[\p{Nd}\p{L}_])\*+(?=[\p{Nd}\p{L}_])#iu', '#^\*+#', '#\*+$#'), array('([\x20]*?|[\p{Nd}\p{L}_-]*?)', '[\p{Nd}\p{L}_-]*?', '[\p{Nd}\p{L}_-]*?'), $word);
+	// Replace asterisk(s) inside the pattern, at the start and at the end of it with regexes
+	$word = preg_replace(array('#(?<=[\p{Nd}\p{L}_])\*+(?=[\p{Nd}\p{L}_])#iu', '#^\*+#', '#\*+$#'), array('([\x20]*?|[\p{Nd}\p{L}_-]*?)', '[\p{Nd}\p{L}_-]*?', '[\p{Nd}\p{L}_-]*?'), $word);
 
-		// Generate the final substitution
-		$preg_expr = '#(?<![\p{Nd}\p{L}_-])(' . $word . ')(?![\p{Nd}\p{L}_-])#iu';
-	}
-	else
-	{
-		// Replace the asterisk inside the pattern, at the start and at the end of it with regexes
-		$word = preg_replace(array('#(?<=\S)\*+(?=\S)#iu', '#^\*+#', '#\*+$#'), array('(\x20*?\S*?)', '\S*?', '\S*?'), $word);
-
-		// Generate the final substitution
-		$preg_expr = '#(?<!\S)(' . $word . ')(?!\S)#iu';
-	}
+	// Generate the final substitution
+	$preg_expr = '#(?<![\p{Nd}\p{L}_-])(' . $word . ')(?![\p{Nd}\p{L}_-])#iu';
 
 	return $preg_expr;
 }
@@ -4690,22 +4678,6 @@ function phpbb_user_session_handler()
 	return;
 }
 
-/**
-* Check if PCRE has UTF-8 support
-* PHP may not be linked with the bundled PCRE lib and instead with an older version
-*
-* @return bool	Returns true if PCRE (the regular expressions library) supports UTF-8 encoding
-*/
-function phpbb_pcre_utf8_support()
-{
-	static $utf8_pcre_properties = null;
-	if (is_null($utf8_pcre_properties))
-	{
-		$utf8_pcre_properties = (@preg_match('/\p{L}/u', 'a') !== false);
-	}
-	return $utf8_pcre_properties;
-}
-
 /**
 * Casts a numeric string $input to an appropriate numeric type (i.e. integer or float)
 *
-- 
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