Library to parse WordPerfect documents in the WP6x file format.
Models a WordPerfect document in the class WP6Document, which include fileHeader, indexArea and documentArea.
documentArea consists of a list of WPTokens called WPStream, which can then be accessed.
WPToken is a class that models every character and function in a WordPerfect document.
Not all functions have been fully modeled. There are hundreds of functions in the specification, and I have not had time to model every one. The remaining unmapped functions are simply named (either with a function name or a function group name).
Functions that have been modeled:
characters
default extended international character set
single-byte functions
extended character sets (those that have a unicode equivalent)--thanks to libwpd for this data source!
Fixed length functions
Variable-length functions:
EOL group
Character Group -- about 25 out of 100+ have been mapped
Page Group -- a few have been mapped
Column Group -- a few have been mapped
Paragraph Group -- a few have been mapped
Header-Footer Group
Footnote-Endnote Group
Style Group
Tab Group
All functions contain the byte representation of the WP function, plus any relevant information modeled in the appropriate C# type.
For example, the bottomMargin function contains a variable number of bytes, which follow a specified pattern. The "useful" information is actually the number of WordPerfect Units (WPUs) that are set in that function, which in this case is the short bottomMargin.
WP_Reader is accessible from an outside application by instantiating a WP6Document, which will return the model of the file:
string url = "whatever/path/file.wpd" //(or .wpt)
WP6Document doc = new WP6Document(url);The document being accessed cannot be currently open in WordPerfect (or any other application), because Windows throws a fit when that happens.
The main useful property (for reading a document) in the WP6Document is documentArea. This contains the actual document. The other properties are accessed by the particular function that stores its data in the IndexArea(s). For example, the WP function bookmark has its useful information stored in one of the IndexAreas as a Prefix Packet. The C# class bookmark in WP_Reader has methods to access and extract this information.
WP_Reader could, theoretically, be used to export the .wpd file type to another file format. However, there are plenty of existing programs that do just that, including WordPerfect iteself, Microsoft Word and LibreOffice/OpenOffice Write. The Write application uses the open source C++ libwpd library to translate WordPerfect documents into the odt file format. That application has mapped nearly every WordPerfect function in the specification and does a very good job at translating the format.
For more information on how to use the library, go to the WPUniverse forums