From e48f8945b32ab5b67f1cdeb53a37d3d196e31e4d Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 20 May 2016 05:19:01 -0400
Subject: [PATCH] Fix bug where message list columns could be in wrong order after column drag-n-drop and list sorting

---
 program/lib/Roundcube/rcube_string_replacer.php |   31 +++++++++++++++++--------------
 1 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/program/lib/Roundcube/rcube_string_replacer.php b/program/lib/Roundcube/rcube_string_replacer.php
index 85ccc95..366a481 100644
--- a/program/lib/Roundcube/rcube_string_replacer.php
+++ b/program/lib/Roundcube/rcube_string_replacer.php
@@ -24,16 +24,17 @@
  */
 class rcube_string_replacer
 {
-    public static $pattern = '/##str_replacement\{([0-9]+)\}##/';
+    public static $pattern = '/##str_replacement_(\d+)##/';
     public $mailto_pattern;
     public $link_pattern;
     public $linkref_index;
     public $linkref_pattern;
 
-    private $values = array();
-    private $options = array();
-    private $linkrefs = array();
-    private $urls = array();
+    protected $values   = array();
+    protected $options  = array();
+    protected $linkrefs = array();
+    protected $urls     = array();
+    protected $noword   = '[^\w@.#-]';
 
 
     function __construct($options = array())
@@ -42,18 +43,20 @@
         // Support unicode/punycode in top-level domain part
         $utf_domain = '[^?&@"\'\\/()<>\s\r\t\n]+\\.?([^\\x00-\\x2f\\x3b-\\x40\\x5b-\\x60\\x7b-\\x7f]{2,}|xn--[a-zA-Z0-9]{2,})';
         $url1       = '.:;,';
-        $url2       = 'a-zA-Z0-9%=#$@+?|!&\\/_~\\[\\]\\(\\){}\*-';
+        $url2       = 'a-zA-Z0-9%=#$@+?|!&\\/_~\\[\\]\\(\\){}\*\x80-\xFE-';
 
-        $this->link_pattern = "/([\w]+:\/\/|\W[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)($utf_domain([$url1]*[$url2]+)*)/";
-        $this->mailto_pattern = "/("
+        // Supported link prefixes
+        $link_prefix = "([\w]+:\/\/|{$this->noword}[Ww][Ww][Ww]\.|^[Ww][Ww][Ww]\.)";
+
+        $this->options         = $options;
+        $this->linkref_index   = '/\[([^\]#]+)\](:?\s*##str_replacement_(\d+)##)/';
+        $this->linkref_pattern = '/\[([^\]#]+)\]/';
+        $this->link_pattern    = "/$link_prefix($utf_domain([$url1]*[$url2]+)*)/";
+        $this->mailto_pattern  = "/("
             ."[-\w!\#\$%&\'*+~\/^`|{}=]+(?:\.[-\w!\#\$%&\'*+~\/^`|{}=]+)*"  // local-part
             ."@$utf_domain"                                                 // domain-part
             ."(\?[$url1$url2]+)?"                                           // e.g. ?subject=test...
             .")/";
-        $this->linkref_index = '/\[([^\]#]+)\](:?\s*##str_replacement\{(\d+)\}##)/';
-        $this->linkref_pattern = '/\[([^\]#]+)\]/';
-
-        $this->options = $options;
     }
 
     /**
@@ -74,7 +77,7 @@
      */
     public function get_replacement($i)
     {
-        return '##str_replacement{'.$i.'}##';
+        return '##str_replacement_' . $i . '##';
     }
 
     /**
@@ -91,7 +94,7 @@
         if (preg_match('!^(http|ftp|file)s?://!i', $scheme)) {
             $url = $matches[1] . $matches[2];
         }
-        else if (preg_match('/^(\W*)(www\.)$/i', $matches[1], $m)) {
+        else if (preg_match("/^({$this->noword}*)(www\.)$/i", $matches[1], $m)) {
             $url        = $m[2] . $matches[2];
             $url_prefix = 'http://';
             $prefix     = $m[1];

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