sogo/UI/MailPartViewers/UIxMailPartTextViewer.m
Wolfgang Sourdeau 32046a6d2e Monotone-Parent: b4864301d33bcd83b867c526d61b7fbf700afd5a
Monotone-Revision: 485f88abf48cd4cfca19756b2d50e4d01f48ed95

Monotone-Author: wsourdeau@inverse.ca
Monotone-Date: 2008-09-04T05:49:39
Monotone-Branch: ca.inverse.sogo
2008-09-04 05:49:39 +00:00

135 lines
3.2 KiB
Objective-C

/*
Copyright (C) 2004-2005 SKYRIX Software AG
This file is part of OpenGroupware.org.
OGo is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.
OGo is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
License for more details.
You should have received a copy of the GNU Lesser General Public
License along with OGo; see the file COPYING. If not, write to the
Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
*/
/*
UIxMailPartTextViewer
Show plaintext mail parts correctly formatted.
TODO: add server side wrapping.
TODO: add contained link detection.
*/
#import <Foundation/NSException.h>
#import <NGExtensions/NSString+misc.h>
#import <SoObjects/SOGo/NSString+Utilities.h>
#import "UIxMailPartTextViewer.h"
@interface NSString (SOGoMailUIExtension)
- (NSString *) stringByConvertingCRLNToHTML;
@end
@implementation NSString (SOGoMailUIExtension)
#define paddingBuffer 8192
static inline char *
convertChars (const char *oldString, unsigned int oldLength,
unsigned int *newLength)
{
const char *currentChar, *upperLimit;
char *newString, *destChar, *reallocated;
unsigned int length, maxLength;
maxLength = oldLength + paddingBuffer;
newString = malloc (maxLength + 1);
destChar = newString;
currentChar = oldString;
length = 0;
upperLimit = oldString + oldLength;
while (currentChar < upperLimit)
{
switch (*currentChar)
{
case '\r': break;
case '\n':
length = destChar - newString;
if (length + paddingBuffer > maxLength - 6)
{
maxLength += paddingBuffer;
reallocated = realloc (newString, maxLength + 1);
if (reallocated)
{
newString = reallocated;
destChar = newString + length;
}
else
[NSException raise: NSMallocException
format: @"reallocation failed in %s",
__PRETTY_FUNCTION__];
}
strcpy (destChar, "<br />");
destChar += 6;
break;
default:
*destChar = *currentChar;
destChar++;
}
currentChar++;
}
*destChar = 0;
*newLength = destChar - newString;
return newString;
}
- (NSString *) stringByConvertingCRLNToHTML
{
NSString *convertedString;
char *newString;
unsigned int newLength;
newString
= convertChars ([self cStringUsingEncoding: NSUTF8StringEncoding],
[self lengthOfBytesUsingEncoding: NSUTF8StringEncoding],
&newLength);
convertedString = [[NSString alloc] initWithBytes: newString
length: newLength
encoding: NSUTF8StringEncoding];
[convertedString autorelease];
free (newString);
return convertedString;
}
@end
@implementation UIxMailPartTextViewer
- (NSString *) flatContentAsString
{
NSString *superContent;
superContent = [[super flatContentAsString] stringByEscapingHTMLString];
return [[superContent stringByDetectingURLs]
stringByConvertingCRLNToHTML];
}
@end /* UIxMailPartTextViewer */