From be9aacaa5296dfca63fb3a01c2dc52538d1546aa Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Sat, 17 Nov 2012 12:31:31 -0500
Subject: [PATCH] Bring back lost localization for the about page

---
 program/lib/html2text.php |   69 +++++++++++++++++++---------------
 1 files changed, 39 insertions(+), 30 deletions(-)

diff --git a/program/lib/html2text.php b/program/lib/html2text.php
index 84a7374..dd413e0 100644
--- a/program/lib/html2text.php
+++ b/program/lib/html2text.php
@@ -89,7 +89,7 @@
  *  out that extra spaces should be compressed--a problem addressed with
  *  Marcus Bointon's fixes but that I had not yet incorporated.
  *
- *	Thanks to Daniel Schledermann (http://www.typoconsult.dk/) for
+ *  Thanks to Daniel Schledermann (http://www.typoconsult.dk/) for
  *  suggesting a valuable fix with <a> tag handling.
  *
  *  Thanks to Wojciech Bajon (again!) for suggesting fixes and additions,
@@ -145,6 +145,7 @@
     var $search = array(
         "/\r/",                                  // Non-legal carriage return
         "/[\n\t]+/",                             // Newlines and tabs
+        '/<head[^>]*>.*?<\/head>/i',             // <head>
         '/<script[^>]*>.*?<\/script>/i',         // <script>s -- which strip_tags supposedly has problems with
         '/<style[^>]*>.*?<\/style>/i',           // <style>s -- which strip_tags supposedly has problems with
         '/<p[^>]*>/i',                           // <P>
@@ -172,6 +173,7 @@
     var $replace = array(
         '',                                     // Non-legal carriage return
         ' ',                                    // Newlines and tabs
+        '',                                     // <head>
         '',                                     // <script>s -- which strip_tags supposedly has problems with
         '',                                     // <style>s -- which strip_tags supposedly has problems with
         "\n\n",                                 // <P>
@@ -200,7 +202,7 @@
     var $ent_search = array(
         '/&(nbsp|#160);/i',                      // Non-breaking space
         '/&(quot|rdquo|ldquo|#8220|#8221|#147|#148);/i',
-		                                         // Double quotes
+                                         // Double quotes
         '/&(apos|rsquo|lsquo|#8216|#8217);/i',   // Single quotes
         '/&gt;/i',                               // Greater-than
         '/&lt;/i',                               // Less-than
@@ -249,12 +251,11 @@
      *  @access public
      */
     var $callback_search = array(
-        '/<(a) [^>]*href=("|\')([^"\']+)\2[^>]*>(.*?)<\/a>/i',
-                                                   // <a href="">
-        '/<(h)[123456][^>]*>(.*?)<\/h[123456]>/i', // H1 - H3
-        '/<(b)[^>]*>(.*?)<\/b>/i',                 // <b>
-        '/<(strong)[^>]*>(.*?)<\/strong>/i',       // <strong>
-        '/<(th)[^>]*>(.*?)<\/th>/i',               // <th> and </th>
+        '/<(a) [^>]*href=("|\')([^"\']+)\2[^>]*>(.*?)<\/a>/i', // <a href="">
+        '/<(h)[123456]( [^>]*)?>(.*?)<\/h[123456]>/i',         // h1 - h6
+        '/<(b)( [^>]*)?>(.*?)<\/b>/i',                         // <b>
+        '/<(strong)( [^>]*)?>(.*?)<\/strong>/i',               // <strong>
+        '/<(th)( [^>]*)?>(.*?)<\/th>/i',                       // <th> and </th>
     );
 
    /**
@@ -368,7 +369,7 @@
     function set_html( $source, $from_file = false )
     {
         if ( $from_file && file_exists($source) ) {
-            $this->html = file_get_contents($source); 
+            $this->html = file_get_contents($source);
         }
         else
             $this->html = $source;
@@ -438,11 +439,11 @@
     function set_base_url( $url = '' )
     {
         if ( empty($url) ) {
-        	if ( !empty($_SERVER['HTTP_HOST']) ) {
-	            $this->url = 'http://' . $_SERVER['HTTP_HOST'];
-        	} else {
-	            $this->url = '';
-	        }
+            if ( !empty($_SERVER['HTTP_HOST']) ) {
+                $this->url = 'http://' . $_SERVER['HTTP_HOST'];
+            } else {
+                $this->url = '';
+            }
         } else {
             // Strip any trailing slashes for consistency (relative
             // URLs may already start with a slash like "/file.html")
@@ -516,7 +517,7 @@
         $text = preg_replace($this->ent_search, $this->ent_replace, $text);
 
         // Replace known html entities
-        $text = html_entity_decode($text, ENT_COMPAT, 'UTF-8');
+        $text = html_entity_decode($text, ENT_QUOTES, 'UTF-8');
 
         // Remove unknown/unhandled entities (this cannot be done in search-and-replace block)
         $text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);
@@ -536,7 +537,7 @@
         // for PHP versions >= 4.0.2. Default width is 75
         // If width is 0 or less, don't wrap the text.
         if ( $this->width > 0 ) {
-        	$text = wordwrap($text, $this->width);
+            $text = wordwrap($text, $this->width);
         }
     }
 
@@ -555,16 +556,16 @@
      */
     function _build_link_list( $link, $display )
     {
-	    if (!$this->_do_links || empty($link)) {
-	        return $display;
-	    }
-
-        // Ignored link types
-	    if (preg_match('!^(javascript|mailto|#):!i', $link)) {
-		    return $display;
+        if (!$this->_do_links || empty($link)) {
+            return $display;
         }
 
-	    if (preg_match('!^(https?://)!i', $link)) {
+        // Ignored link types
+        if (preg_match('!^(javascript:|mailto:|#)!i', $link)) {
+            return $display;
+        }
+
+        if (preg_match('!^([a-z][a-z0-9.+-]+:)!i', $link)) {
             $url = $link;
         }
         else {
@@ -576,8 +577,8 @@
         }
 
         if (($index = array_search($url, $this->_link_list)) === false) {
-            $this->_link_list[] = $url;
             $index = count($this->_link_list);
+            $this->_link_list[] = $url;
         }
 
         return $display . ' [' . ($index+1) . ']';
@@ -593,12 +594,20 @@
     {
         // get the content of PRE element
         while (preg_match('/<pre[^>]*>(.*)<\/pre>/ismU', $text, $matches)) {
+            $this->pre_content = $matches[1];
+
+            // Run our defined tags search-and-replace with callback
+            $this->pre_content = preg_replace_callback($this->callback_search,
+                array('html2text', '_preg_callback'), $this->pre_content);
+
             // convert the content
             $this->pre_content = sprintf('<div><br>%s<br></div>',
-                preg_replace($this->pre_search, $this->pre_replace, $matches[1]));
+                preg_replace($this->pre_search, $this->pre_replace, $this->pre_content));
+
             // replace the content (use callback because content can contain $0 variable)
-            $text = preg_replace_callback('/<pre[^>]*>.*<\/pre>/ismU', 
+            $text = preg_replace_callback('/<pre[^>]*>.*<\/pre>/ismU',
                 array('html2text', '_preg_pre_callback'), $text, 1);
+
             // free memory
             $this->pre_content = '';
         }
@@ -671,11 +680,11 @@
         switch (strtolower($matches[1])) {
         case 'b':
         case 'strong':
-            return $this->_toupper($matches[2]);
+            return $this->_toupper($matches[3]);
         case 'th':
-            return $this->_toupper("\t\t". $matches[2] ."\n");
+            return $this->_toupper("\t\t". $matches[3] ."\n");
         case 'h':
-            return $this->_toupper("\n\n". $matches[2] ."\n\n");
+            return $this->_toupper("\n\n". $matches[3] ."\n\n");
         case 'a':
             // Remove spaces in URL (#1487805)
             $url = str_replace(' ', '', $matches[3]);

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