From 3ebac0167bf20104fb7a2a55934765117760264c Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Mon, 18 Aug 2014 03:53:18 -0400
Subject: [PATCH] Only add zen-mode text labels in compose step

---
 program/lib/Roundcube/rcube_html2text.php |   29 +++++++++++++++++++++++------
 1 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/program/lib/Roundcube/rcube_html2text.php b/program/lib/Roundcube/rcube_html2text.php
index 3d32fe7..499c4b0 100644
--- a/program/lib/Roundcube/rcube_html2text.php
+++ b/program/lib/Roundcube/rcube_html2text.php
@@ -423,7 +423,7 @@
         // Variables used for building the link list
         $this->_link_list = array();
 
-        $text = trim(stripslashes($this->html));
+        $text = $this->html;
 
         // Convert HTML to TXT
         $this->_converter($text);
@@ -472,6 +472,9 @@
 
         // Replace known html entities
         $text = html_entity_decode($text, ENT_QUOTES, $this->charset);
+
+        // Replace unicode nbsp to regular spaces
+        $text = preg_replace('/\xC2\xA0/', ' ', $text);
 
         // 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);
@@ -597,28 +600,42 @@
                     // get blockquote content
                     $body = trim(substr($text, $startpos, $end - $startpos));
 
+                    // adjust text wrapping width
+                    $p_width = $this->width;
+                    if ($this->width > 0) $this->width -= 2;
+
                     // replace content with inner blockquotes
                     $this->_converter($body);
 
+                    // resore text width
+                    $this->width = $p_width;
+
                     // Add citation markers and create <pre> block
-                    $body = preg_replace_callback('/((?:^|\n)>*)([^\n]*)/', array($this, 'blockquote_citation_ballback'), trim($body));
+                    $body = preg_replace_callback('/((?:^|\n)>*)([^\n]*)/', array($this, 'blockquote_citation_callback'), trim($body));
                     $body = '<pre>' . htmlspecialchars($body) . '</pre>';
 
-                    $text = substr($text, 0, $start) . $body . "\n" . substr($text, $end + 13);
+                    $text = substr_replace($text, $body . "\n", $start, $end + 13 - $start);
                     $offset = 0;
+
                     break;
                 }
-            } while ($end || $next);
+                // abort on invalid tag structure (e.g. no closing tag found)
+                else {
+                    break;
+                }
+            }
+            while ($end || $next);
         }
     }
 
     /**
      * Callback function to correctly add citation markers for blockquote contents
      */
-    public function blockquote_citation_ballback($m)
+    public function blockquote_citation_callback($m)
     {
-        $line = ltrim($m[2]);
+        $line  = ltrim($m[2]);
         $space = $line[0] == '>' ? '' : ' ';
+
         return $m[1] . '>' . $space . $line;
     }
 

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