From 0581af1a4572318b01b12c9c0c3c0165cd58c013 Mon Sep 17 00:00:00 2001
From: Wolfgang Sourdeau <wsourdeau@inverse.ca>
Date: Mon, 5 Nov 2007 22:41:48 +0000
Subject: [PATCH] Monotone-Parent: 633db895fe1d25a8339861d7d55a062abc56205f
 Monotone-Revision: d62034b3292612b00d95300def78e7bfff8f05eb

Monotone-Author: wsourdeau@inverse.ca
Monotone-Date: 2007-11-05T22:41:48
Monotone-Branch: ca.inverse.sogo
---
 ChangeLog                                  |  5 ++
 UI/MailPartViewers/UIxMailPartTextViewer.m | 64 ++++++++++++++++++++--
 2 files changed, 65 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4d157a775..54838b558 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2007-11-05  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
+	* UI/MailPartViewers/UIxMailPartTextViewer.m
+	([UIxMailPartTextViewer -flatContentAsString]): re-added
+	conversion of line-break to sequences of HTML "BR", with a fast
+	algorithm in C.
+
 	* UI/MailPartViewers/UIxMailPartViewer.m ([UIxMailPartViewer
 	-flatContentAsString]): simplified method now that we know
 	-[NSString stringWithData:usingEncodingNamed:] has a more robust
diff --git a/UI/MailPartViewers/UIxMailPartTextViewer.m b/UI/MailPartViewers/UIxMailPartTextViewer.m
index 22d41a386..d4ff0ccdc 100644
--- a/UI/MailPartViewers/UIxMailPartTextViewer.m
+++ b/UI/MailPartViewers/UIxMailPartTextViewer.m
@@ -34,18 +34,74 @@
 
 #import "UIxMailPartTextViewer.h"
 
+@interface NSString (SOGoMailUIExtension)
+
+- (NSString *) stringByConvertingCRLNToHTML;
+
+@end
+
+@implementation NSString (SOGoMailUIExtension)
+
+- (NSString *) stringByConvertingCRLNToHTML
+{
+  NSString *convertedString;
+  const char *oldString, *currentChar;
+  char *newString, *destChar;
+  unsigned int oldLength, length, delta;
+
+  oldString = [self cStringUsingEncoding: NSUTF8StringEncoding];
+  oldLength = [self lengthOfBytesUsingEncoding: NSUTF8StringEncoding];
+
+  length = oldLength;
+  newString = malloc (length + 500);
+  destChar = newString;
+  currentChar = oldString;
+  while (currentChar < (oldString + oldLength))
+    {
+      if (*currentChar != '\r')
+	{
+	  if (*currentChar == '\n')
+	    {
+	      strcpy (destChar, "<br />");
+	      destChar += 6;
+	      delta = (destChar - newString);
+	      if (delta > length)
+		{
+		  length += 500;
+		  newString = realloc (newString, length + 500);
+		  destChar = newString + delta;
+		}
+	    }
+	  else
+	    {
+	      *destChar = *currentChar;
+	      destChar++;
+	    }
+	}
+      currentChar++;
+    }
+  *destChar = 0;
+
+  convertedString = [[NSString alloc] initWithBytes: newString
+				      length: (destChar + 1 - newString)
+				      encoding: NSUTF8StringEncoding];
+  [convertedString autorelease];
+  free (newString);
+
+  return convertedString;
+}
+
+@end
+
 @implementation UIxMailPartTextViewer
 
 - (NSString *) flatContentAsString
 {
-  NSMutableString *content;
   NSString *superContent;
 
-  content = [NSMutableString string];
   superContent = [[super flatContentAsString] stringByEscapingHTMLString];
-  [content appendString: [superContent stringByDetectingURLs]];
 
-  return content;
+  return [[superContent stringByDetectingURLs] stringByConvertingCRLNToHTML];
 }
 
 @end /* UIxMailPartTextViewer */