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License: The Code Project Open License (CPOL)
Writing Your Own RTF ConverterBy Jani GiannoudisAn article on how to write a custom RTF parser and converter |
C# 2.0, .NET, WPF, Dev
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In 1992, Microsoft introduced the Rich Text Format for specifying simple formatted text with embedded graphics. Initially intended to transfer such data between different applications on different operating systems (MS-DOS, Windows, OS/2, and Apple Macintosh), today this format is commonly used in Windows for enhanced editing capabilities (RichTextBox).
However, as soon as you have to work with such data in RTF format, additional wishes start to get strong:
The component introduced in this article has been designed with the following goals in mind:
Please keep the following shortcomings in mind:
There is no special support for the following RTF layout elements:
In general, this should not pose a big problem for many areas of use. A conforming RTF writer should always write content with readers in mind that they do not know about tags and features which were introduced later in the standards history. As a consequence, a lot of the content in an RTF document is stored several times (at least if the writer cares about other applications). This is taken advantage of by the interpreter here, which just simply focuses on the visual content. Some writers in common use, however, improperly support this alternate representation which will result in differences in the resulting output.
Thanks to its open architecture, the RTF parser is a solid base for development of an RTF converter which focuses on layout.
The actual parsing of the data is being done by the class RtfParser. Apart from the tag recognition, it also handles (a first level of) character encoding and Unicode support. The RTF parser classifies the RTF data into the following basic elements:
The actual parsing process can be monitored by ParserListeners (Observer Pattern), which offers an opportunity to react on specific events and perform corresponding actions.
The integrated parser listener RtfParserListenerFileLogger can be used to write the structure of the RTF elements into a log file (mainly intended for use during development). The produced output can be customized using its RtfParserLoggerSettings. The additional RtfParserListenerLogger parser listener can be used to log the parsing process to any ILogger implementation (see System functions).
The parser listener RtfParserListenerStructureBuilder generates the Structure Model from the RTF elements encountered during parsing. That model represents the basic elements as instances of IRtfGroup, IRtfTag, and IRtfText. Access to the hierarchical structure can be gained through the RTF group available in RtfParserListenerStructureBuilder.StructureRoot. Based on the Visitor Pattern, it is easily possible to examine the structure model via any IRtfElementVisitor implementation:
// ----------------------------------------------------------------------
public class MyVisitor : IRtfElementVisitor
{
void RtfWriteStructureModel()
{
RtfParserListenerFileLogger logger =
new RtfParserListenerFileLogger( @"c:\temp\RtfParser.log" );
IRTFGroup structureRoot =
RtfParserTool.Parse( @"{\rtf1foobar}", logger );
structureRoot.Visit( this );
} // RtfWriteStructureModel
// ----------------------------------------------------------------------
void IRtfElementVisitor.VisitTag( IRtfTag tag )
{
Console.WriteLine( "Tag: " + tag.FullName );
} // IRtfElementVisitor.VisitTag
// ----------------------------------------------------------------------
void IRtfElementVisitor.VisitGroup( IRtfGroup group )
{
Console.WriteLine( "Group: " + group.Destination );
foreach ( IRtfElement child in group.Contents )
{
child.Visit( this ); // recursive
}
} // IRtfElementVisitor.VisitGroup
// ----------------------------------------------------------------------
void IRtfElementVisitor.VisitText( IRtfText text )
{
Console.WriteLine( "Text: " + text.Text );
} // IRtfElementVisitor.VisitText
} // MyVisitor
Note, however, that the same result for such simple functionality could be achieved by writing a custom IRtfParserListener (see below). This can, in some cases, be useful to avoid the overhead of creating the structure model in memory.
The utility class RtfParserTool offers the possibility to receive RTF data from a multitude of sources, such as string, TextReader, and Stream. It also allows, via its IRtfSource interface, to handle all these (and even other) scenarios in a uniform way.
The interface IRtfParserListener with its base utility implementation RtfParserListenerBase offers a way to react in custom ways to specific events during the parsing process:
// ------------------------------------------------------------------------
public class MyParserListener : RtfParserListenerBase
{
// ----------------------------------------------------------------------
protected override void DoParseBegin()
{
Console.WriteLine( "parse begin" );
} // DoParseBegin
// ----------------------------------------------------------------------
protected override void DoGroupBegin()
{
Console.WriteLine( "group begin - level " + Level.ToString() );
} // DoGroupBegin
// ----------------------------------------------------------------------
protected override void DoTagFound( IRtfTag tag )
{
Console.WriteLine( "tag " + tag.FullName );
} // DoTagFound
// ----------------------------------------------------------------------
protected override void DoTextFound( IRtfText text )
{
Console.WriteLine( "text " + text.Text );
} // DoTextFound
// ----------------------------------------------------------------------
protected override void DoGroupEnd()
{
Console.WriteLine( "group end - level " + Level.ToString() );
} // DoGroupEnd
// ----------------------------------------------------------------------
protected override void DoParseSuccess()
{
Console.WriteLine( "parse success" );
} // DoParseSuccess
// ----------------------------------------------------------------------
protected override void DoParseFail( RtfException reason )
{
Console.WriteLine( "parse failed: " + reason.Message );
} // DoParseFail
// ----------------------------------------------------------------------
protected override void DoParseEnd()
{
Console.WriteLine( "parse end" );
} // DoParseEnd
} // MyParserListener
Note that the used base class already provides (empty) implementations for all the interface methods, so only the ones which are required for a specific purpose need to be overridden.
Once an RTF document has been parsed into a structure model, it is subject to interpretation through the RTF interpreter. One obvious way to interpret the structure is to build a Document Model which provides high-level access to the meaning of the document's contents. A very simple document model is part of this component, and consists of the following building blocks:
The various Visuals represent the recognized visible RTF elements, and can be examined with any IRtfVisualVisitor implementation.
Analogous to the possibilities of the RTF parser, the provided RtfInterpreter supports monitoring the interpretation process with InterpreterListeners for specific purposes.
Analyzing documents might be simplified by using the RtfInterpreterListenerFileLogger interpreter listener, which writes the recognized RTF elements into a log file. Its output can be customized through its RtfInterpreterLoggerSettings. The additional RtfInterpreterListenerLogger interpreter listener can be used to log the interpretation process to any ILogger implementation (see System functions).
Construction of the document model is also achieved through such an interpreter listener (RtfInterpreterListenerDocumentBuilder) which, in the end, delivers an instance of an IRtfDocument.
The following example shows how to make use of the high-level API of the document model:
// ----------------------------------------------------------------------
void RtfWriteDocumentModel( Stream rtfStream )
{
RtfInterpreterListenerFileLogger logger =
new RtfInterpreterListenerFileLogger( @"c:\temp\RtfInterpreter.log" );
IRtfDocument document = RtfInterpreterTool.BuildDoc( rtfStream, logger );
RtfWriteDocument( document );
} // RtfWriteDocumentModel
// ----------------------------------------------------------------------
void RtfWriteDocument( IRtfDocument document )
{
Console.WriteLine( "RTF Version: " + document.RtfVersion.ToString() );
// document info
Console.WriteLine( "Title: " + document.DocumentInfo.Title );
Console.WriteLine( "Subject: " + document.DocumentInfo.Subject );
Console.WriteLine( "Author: " + document.DocumentInfo.Author );
// ...
// fonts
foreach ( IRtfFont font in document.FontTable )
{
Console.WriteLine( "Font: " + font.Name );
}
// colors
foreach ( IRtfColor color in document.ColorTable )
{
Console.WriteLine( "Color: " + color.AsDrawingColor.ToString() );
}
// user properties
foreach ( IRtfDocumentProperty documentProperty in document.UserProperties )
{
Console.WriteLine( "User property: " + documentProperty.Name );
}
// visuals (preferably handled through an according visitor)
foreach ( IRtfVisual visual in document.VisualContent )
{
switch ( visual.Kind )
{
case RtfVisualKind.Text:
Console.WriteLine( "Text: " + ((IRtfVisualText)visual).Text );
break;
case RtfVisualKind.Break:
Console.WriteLine( "Tag: " +
((IRtfVisualBreak)visual).BreakKind.ToString() );
break;
case RtfVisualKind.Special:
Console.WriteLine( "Text: " +
((IRtfVisualSpecialChar)visual).CharKind.ToString() );
break;
case RtfVisualKind.Image:
IRtfVisualImage image = (IRtfVisualImage)visual;
Console.WriteLine( "Image: " + image.Format.ToString() +
" " + image.Width.ToString() + "x" + image.Height.ToString() );
break;
}
}
} // RtfWriteDocument
As with the parser, the class RtfInterpreterTool offers convenience functionality for easy interpretation of RTF data and creation of a corresponding IRtfDocument. In case no IRtfGroup is yet available, it also provides for passing any source to the RtfParserTool for automatic on-the-fly parsing.
The interface IRtfInterpreterListener, with its base utility implementation RtfInterpreterListenerBase, offers the necessary foundation for a custom interpreter listener:
// ------------------------------------------------------------------------
public class MyInterpreterListener : RtfInterpreterListenerBase
{
// ----------------------------------------------------------------------
protected override void DoBeginDocument( IRtfInterpreterContext context )
{
// custom action
} // DoBeginDocument
// ----------------------------------------------------------------------
protected override void DoInsertText( IRtfInterpreterContext context, string text )
{
// custom action
} // DoInsertText
// ----------------------------------------------------------------------
protected override void DoInsertSpecialChar( IRtfInterpreterContext context,
RtfVisualSpecialCharKind kind )
{
// custom action
} // DoInsertSpecialChar
// ----------------------------------------------------------------------
protected override void DoInsertBreak( IRtfInterpreterContext context,
RtfVisualBreakKind kind )
{
// custom action
} // DoInsertBreak
// ----------------------------------------------------------------------
protected override void DoInsertImage( IRtfInterpreterContext context,
RtfVisualImageFormat format,
int width, int height, int desiredWidth, int desiredHeight,
int scaleWidthPercent, int scaleHeightPercent,
string imageDataHex
)
{
// custom action
} // DoInsertImage
// ----------------------------------------------------------------------
protected override void DoEndDocument( IRtfInterpreterContext context )
{
// custom action
} // DoEndDocument
} // MyInterpreterListener
The IRtfInterpreterContext passed to all of these methods contains the document information which is available at the very moment (colors, fonts, formats, etc.) as well as information about the state of the interpretation.
As a foundation for the development of more complex converters, there are four base converters available for text, images, XML, and HTML. They are designed to be extended by inheritance.
The RtfTextConverter can be used to extract plain text from an RTF document. Its RtfTextConvertSettings determines how to represent special characters, tabulators, white space, breaks (line, page, etc.), and what to do with them.
// ----------------------------------------------------------------------
void ConvertRtf2Text( Stream rtfStream )
{
// logger
RtfInterpreterListenerFileLogger logger =
new RtfInterpreterListenerFileLogger( @"c:\temp\RtfInterpreter.log" );
// text converter
RtfTextConvertSettings textConvertSettings = new RtfTextConvertSettings();
textConvertSettings.BulletText = "-"; // // replace default bullet text '°'
RtfTextConverter textConverter = new RtfTextConverter( textConvertSettings );
// interpreter
RtfInterpreterTool.Interpret( rtfStream, logger, textConverter );
Console.WriteLine( textConverter.PlainText );
} // ConvertRtf2Text
The RtfImageConverter offers a way to extract images from an RTF document. The size of the images can remain unscaled or as they appear in the RTF document. Optionally, the format of the image can be converted to another ImageFormat. File name, type, and size can be controlled by an IRtfVisualImageAdapter. The RtfImageConvertSettings determines the storage location as well as any scaling.
// ----------------------------------------------------------------------
void ConvertRtf2Image( Stream rtfStream )
{
// logger
RtfInterpreterListenerFileLogger logger =
new RtfInterpreterListenerFileLogger( @"c:\temp\RtfInterpreter.log" );
// image converter
// convert all images to JPG
RtfVisualImageAdapter imageAdapter = new RtfVisualImageAdapter( ImageFormat.Jpeg );
RtfImageConvertSettings imageConvertSettings =
new RtfImageConvertSettings( imageAdapter );
imageConvertSettings.ImagesPath = @"c:\temp\images\";
imageConvertSettings.ScaleImage = true; // scale images
RtfImageConverter imageConverter = new RtfImageConverter( imageConvertSettings );
// interpreter
RtfInterpreterTool.Interpret( rtfStream, logger, imageConverter );
// all images are saved to the path 'c:\temp\images\'
} // ConvertRtf2Image
The RtfXmlConverter converts the recognized RTF visuals into an XML document. Its RtfXmlConvertSettings allows to specify the used XML namespace and the corresponding prefix.
// ----------------------------------------------------------------------
void ConvertRtf2Xml( Stream rtfStream )
{
// logger
RtfInterpreterListenerFileLogger logger =
new RtfInterpreterListenerFileLogger( @"c:\temp\RtfInterpreter.log" );
// interpreter
IRtfDocument rtfDocument = RtfInterpreterTool.BuildDoc( rtfStream, logger );
// XML convert
XmlWriterSettings xmlWriterSettings = new XmlWriterSettings();
xmlWriterSettings.Indent = true;
xmlWriterSettings.IndentChars = ( " " );
string fileName = @"c:\temp\Rtf.xml";
using ( XmlWriter writer = XmlWriter.Create( fileName, xmlWriterSettings ) )
{
RtfXmlConverter xmlConverter = new RtfXmlConverter( rtfDocument, writer );
xmlConverter.Convert();
writer.Flush();
}
} // ConvertRtf2Xml
The RtfHtmlConverter converts the recognized RTF visuals into an HTML document. File names, type, and size of any encountered images can be controlled through an IRtfVisualImageAdapter, while the RtfHtmlConvertSettings determines storage location, stylesheets, and other HTML document information.
// ----------------------------------------------------------------------
void ConvertRtf2Html( Stream rtfStream )
{
// logger
RtfInterpreterListenerFileLogger logger =
new RtfInterpreterListenerFileLogger( @"c:\temp\RtfInterpreter.log" );
// image converter
// convert all images to JPG
RtfVisualImageAdapter imageAdapter =
new RtfVisualImageAdapter( ImageFormat.Jpeg );
RtfImageConvertSettings imageConvertSettings =
new RtfImageConvertSettings( imageAdapter );
imageConvertSettings.ScaleImage = true; // scale images
RtfImageConverter imageConverter =
new RtfImageConverter( imageConvertSettings );
// interpreter
IRtfDocument rtfDocument = RtfInterpreterTool.Interpret( rtfStream,
logger, imageConverter );
// html converter
RtfHtmlConvertSettings htmlConvertSettings =
new RtfHtmlConvertSettings( imageAdapter );
htmlConvertSettings.StyleSheetLinks.Add( "default.css" );
RtfHtmlConverter htmlConverter = new RtfHtmlConverter( rtfDocument,
htmlConvertSettings );
Console.WriteLine( htmlConverter.Convert() );
} // ConvertRtf2Html
HTML Styles can be integrated in two ways:
RtfHtmlCssStyle in RtfHtmlConvertSettings.Styles RtfHtmlConvertSettings.StyleSheetLinks The RtfHtmlConvertScope allows to restrict the target range:
RtfHtmlConvertScope.All: complete HTML document (=Default) RtfHtmlConvertScope.Content: only paragraphs The console applications Rtf2Raw, Rtf2Xml, and Rtf2Html demonstrate the range of functionality of the corresponding base converters, and offer a starting point for the development of our own RTF converter.
The command line application Rtf2Raw converts an RTF document into plain text and images:
Rtf2Raw source-file [destination] [/IT:format] [/BC:color] [/CE:encoding]
[/IS] [/XS] [/ST] [/SI] [/LD:path] [/LP]
[/LI] [/D] [/O] [/HT] [/?]
source-file source rtf file
destination destination directory (default=source-file directory)
/IT:format images type format: bmp, emf, exif, gif, icon, jpg,
png, tiff or wmf (default=original)
/BC:color image background color name (default=none)
/CE:encoding character encoding: ASCII, UTF7, UTF8, Unicode,
BigEndianUnicode, UTF32, OperatingSystem (default=UTF8)
/IS image scale (default=off)
/XS extended image scale - border fix (default=off)
/ST don't save text to the destination (default=on)
/SI don't save images to the destination (default=on)
/LD:path log file directory (default=destination directory)
/LP write rtf parser log (default=off)
/LI write rtf interpreter log (default=off)
/D write text to screen (default=off)
/O open text in associated application (default=off)
/HT show hidden text (default=off)
/? this help
Samples:
Rtf2Raw MyText.rtf
Rtf2Raw MyText.rtf c:\temp
Rtf2Raw MyText.rtf c:\temp /CSS:MyCompany.css
Rtf2Raw MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css
Rtf2Raw MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css /IT:png /BC:white
Rtf2Raw MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css /IT:png /BC:white
/LD:log /LP /LI
The command line application Rtf2Xml converts an RTF document into an XML document:
Rtf2Xml source-file [destination] [/CE:encoding] [/P:prefix]
[/NS:namespace] [/LD:path] [/LP] [/LI] [/HT] [/?]
source-file source rtf file
destination destination directory (default=source-file directory)
/CE:encoding character encoding: ASCII, UTF7, UTF8, Unicode,
BigEndianUnicode, UTF32, OperatingSystem (default=UTF8)
/P:prefix xml prefix (default=none)
/NS:namespace xml namespace (default=none)
/LD:path log file directory (default=destination directory)
/LP write rtf parser log (default=off)
/LI write rtf interpreter log (default=off)
/HT show hidden text (default=off)
/? this help
Samples:
Rtf2Xml MyText.rtf
Rtf2Xml MyText.rtf c:\temp
Rtf2Xml MyText.rtf c:\temp /NS:MyNs
Rtf2Xml MyText.rtf c:\temp /LD:log /LP /LI
The command line application Rtf2Html converts an RTF document into an HTML document:
Rtf2Html source-file [destination] [/CSS:names] [/ID:path]
[/IT:format] [/BC:color] [/XS] [/CE:encoding]
[/CS:charset] [/DS:scope] [/SH] [/SI] [/LD:path]
[/LP] [/LI] [/D] [/O] [/HT] [/NBS] [/CH] [/HP:pattern] [/?]
source-file source rtf file
destination destination directory (default=source-file directory)
/CSS:name1,name2 style sheet names (default=none)
/ID:path images directory (default=destination directory)
/IT:format images type format: jpg, gif or png (default=jpg)
/BC:color image background color name (default=none)
/XS extended image scale - border fix (default=off)
/CE:encoding character encoding: ASCII, UTF7, UTF8, Unicode,
BigEndianUnicode, UTF32, OperatingSystem (default=UTF8)
/CS:charset document character set used for the HTML header meta-tag
'content' (default=UTF-8)
/DS:scope document scope, comma separated list of document sections:
doc, html, head, body, content, all (default=all)
/SH don't save HTML to the destination (default=on)
/SI don't save images to the destination (default=on)
/LD:path log file directory (default=destination directory)
/LP write rtf parser log file (default=off)
/LI write rtf interpreter log file (default=off)
/D display HTML text on screen (default=off)
/O open HTML in associated application (default=off)
/NBS use non-breaking spaces (default=off)
/HT show hidden text (default=off)
/CH convert visual hyperlinks (default=off)
/HP:pattern regular expression pattern to recognize visual hyperlinks
/? this help
Samples:
Rtf2Html MyText.rtf
Rtf2Html MyText.rtf /DS:body,content
Rtf2Html MyText.rtf c:\temp
Rtf2Html MyText.rtf c:\temp /CSS:MyCompany.css
Rtf2Html MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css
Rtf2Html MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css
/ID:images /IT:png /BC:white
Rtf2Html MyText.rtf c:\temp /CSS:MyCompany.css,ThisProject.css
/ID:images /IT:png /BC:white /LD:log /LP /LI
The following projects are provided in the RTF converter component:
Sys |
System functions. See below for a short description. |
Parser |
Parsing of RTF data. |
ParserTests |
Unit tests for Parser. |
Interpreter |
Interpretation of parsed RTF data. Functionality for conversion of RTF to plain text and images. |
InterpreterTests |
Unit tests for Interpreter. |
ConverterXml |
Functionality for conversion of RTF to XML. |
ConverterHtml |
Functionality for conversion of RTF to HTML. |
Rtf2Raw |
Command line application to convert from RTF to text- and image data. |
Rtf2Xml |
Command line application to convert from RTF to XML. |
Rtf2Html |
Command line application to convert from RTF to HTML. |
RtfWinForms |
Windows Forms sample application which demonstrates a simple conversion from RTF to Text/XML/HTML. |
RtfWindows |
WPF sample application which demonstrates a simple conversion from RTF to Text/XML/HTML. |
The project Sys contains some base functionality for use in all the other applications/projects:
HashTool |
Functions to simplify implementing overrides of the object.GetHashCode() method. |
StringTool |
Functions for String formatting. |
CollectionTool |
Functions to simplify handling of Collections. |
ApplicationArguments |
Functions to interpret command line arguments. Offers support for the argument types ToggleArgument, ValueArgument, and NamedValueArgument. |
Logging |
Functionality to abstract the embedding of a Logger facility. Supports the logger types LoggerNone, LoggerTrace, and LoggerLog4net. |
Test |
Functionality to build a unit-based test application. |
Special thanks to Leon Poyyayil for the design and his support and contribution in the development of this component.
RtfHtmlConverterSettings: New property UseNonBreakingSpaces Rtf2Html: New command line argument /NBS to replace spaces with non-breaking spaces (default=off) RtfImageConverterSettings: New property BackgroundColor Rtf2Raw, Rtf2Html: New command line argument /BC for the image background color RtfHtmlConverter: Replacing text spaces with non-breaking-spaces RtfImageConverter: Fixed missing converted image info in case of undefined target format RtfHtmlConverter: Added support for Justify alignment RtfHtmlConverter: Fixed missing closing tag </ul> for bulleted lists, in case when ConvertScope is set to Content RtfSpec: New tag highlight for highlighted text RtfInterpreter: Added support for text highlighting Rtf2Raw, Rtf2Xml, Rtf2Html: Enumeration ProgramExitCode contains all program exit codes RtfParser: Various new specialized exceptions based on RtfParserException RtfInterpreter: Various new specialized exceptions based on RtfInterpreterException Sys, Parser and Interpreter: Extracted localizable strings to Strings.cs and Strings.resx Rtf2Html: New command line argument /DS to control the conversion scope RtfSpec: New tag nonshppict for alternative images RtfInterpreter: Ignoring alternative images RtfInterpreterTest: New unit-test for alternative images RtfImageConvertSettings: New properties ScaleOffset and ScaleExtension to control image scaling Rtf2Raw and Rtf2Html: New command line argument /XS to fix the BorderBug RtfInterpreter: Extended group handling to recognize state transition from header to document in case no other mechanism detects it and the content starts with a group with such a 'destination' Rtf2Html: Added support to convert visual hyperlinks
/CH to convert visual hyperlinks (default is off) /HP:pattern with the regular expression pattern to recognize visual hyperlinks (optional) RtfHtmlConvertSettings.ConvertVisualHyperlinks and RtfHtmlConvertSettings.VisualHyperlinkPattern RtfParser: Fixed to properly handle skipping of Unicode alternative representation in case these are written in hex-encoded form. RtfHtmlConverter: New property DocumentImages which provides information about the converted images using IRtfConvertedImageInfo. \sub: Changes font size to 2/3 of the current font size and moves 'down' by half the current font size. \super: Changes font size to 2/3 of the current font size and moves 'up' by half the current font size. \nosupersub: Resets the 'up'/'down' baseline alignment to zero.\v*: Toggles the new IsHidden property of the IRtfTextFormat.\v and \v1 turn it on while \v0 turns it off (according to the behavior or 'boolean tags'). \viewkind: Triggers the transition from interpreter state InHeader to InDocument (but only if the font table is already defined).\dn and \up: will use the specified default value of '6' if none is given in the RTF (instead of resetting to zero). RtfTextConverterSettings/RtfXmlConverterSettings/
RtfHtmlConverterSettings: have a new flag IsShowHiddenText which defaults to false. RtfTextConverter/RtfXmlConverter/RtfHtmlConverter: will only append found text to the plain text buffer if it is not marked hidden in its text format or if the new setting IsShowHiddenText is explicitly set to true. Rtf2Raw/Rtf2Xml/Rtf2Html: New commandline argument /HT to convert hidden text RtfWinForms/RtfWindows: Conversion is considering the text selection RtfImageConverter: New property ConvertedImages which provides information about the converted images using IRtfConvertedImageInfo RtfHtmlConverter: Fixed encoding of image file names \pict tags wrapped in a \*\shppict group RtfGroup: Extended debugging visualization RtfParser: Fixed local group fonts RtfSpec: New tag constants for the theme fonts and stylesheet RtfParser: Added support for dealing with theme fonts during decoding (ugly but necessary when such fonts are used for hex encoded content) RtfFontBuilder: Added support for theme fonts RtfFontBuilder: Added support for font names with an alternative representation RtfFontTableBuilder: Added support for theme fonts RtfInterpeter: Added special support for stylesheets by ignoring their contents (to prevent the style names from appearing in the document content) IRtfInterpreterContext: Replaced int DefaultFontIndex by string DefaultFontId to support WPF RichTextBox font indexing RtfHtmlConveter: New class IRtfHtmlStyleConverter which provides external style conversion RtfHtmlConveter: Changed default image type from GIF to JPEG RtfHtmlConveter: Fixed align of images Rtf2Html: Fixed HTML-encoded string Rtf2Html: New command line parameter /CS for the HTML character set RtfParserTest and RtfInterpreterTest: New unit-tests for multi-byte character set decoding 
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Last Updated: 20 Aug 2009 Editor: Sean Ewington |
Copyright 2008 by Jani Giannoudis Everything else Copyright © CodeProject, 1999-2009 Web17 | Advertise on the Code Project |
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