Bartosz Kosiorek 7bb911d118 tdf#112626 lotuswordpro: switch to constexpr and update documentation

Change-Id: I566c22285978f7b31961d105d02d99d0696908b9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137041
Tested-by: Jenkins
Reviewed-by: Bartosz Kosiorek <gang65@poczta.onet.pl>

2022-07-14 10:32:23 +02:00

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Import Filter for File Format of Lotus Word Pro (lwp)

Description

⚠️ Import Filter supports only Lotus Word Pro 97 and next versions

The import is not direct, but via an intermediate format: StarOffice XML, the predecessor of ODF (yes, the code is old). The entry point to the filter is class LotusWordProImportFilter (refer to Source code section), but that just hooks up the necessary machinery for processing StarOffice XML produced by the filter. The real fun starts in function ReadWordproFile() (source/filter/lwpfilter.cxx); this function initializes the parser (class Lwp9Reader) and the SAX XML handler that produces the output (class XFSaxStream). The Lwp9Reader class then does the actual parsing.

If the module is built with debug level greater than 0, it is possible to examine the intermediate XML: set environment variable DBG_LWPIMPORT_DIR= to an existing directory. During opening an .lwp document, a file named lwpimport.xml will be created in DBG_LWPIMPORT_DIR directory.

Source Code

Module Contents

inc: module-global headers (can be included by any file in source)
qa: cppunit tests
source: the filter itself
util: UNO passive registration config

Source Contents

filter: lwp document format parser
filter/LotusWordProImportFilter.cxx: the entry point to the filter
filter/xfilter: export to StarOffice XML

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