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Caolán McNamara 2bafc7384b cid#1545605 COPY_INSTEAD_OF_MOVE 
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Change-Id: I90531c19c28dca77fe99c72efdfc0972c311da98
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/175377
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
2024-10-22 11:56:02 +02:00
..
documentation xmloff: document the GutterAtTop Writer setting 2023-10-24 13:46:28 +02:00
dtd
inc Optimize TokenMap and AttributeList in oox and xo 2024-09-12 23:09:23 +02:00
qa tdf#156707 xmloff import: always provide ControlBorder property 2024-10-10 18:52:22 +02:00
source cid#1545605 COPY_INSTEAD_OF_MOVE 2024-10-22 11:56:02 +02:00
util
CppunitTest_xmloff_draw.mk
CppunitTest_xmloff_style.mk Tests with color stops to assert Color and not BColor values 2023-08-21 08:57:15 +02:00
CppunitTest_xmloff_text.mk sw floattable, per-frame wrap-on-all-pages mode: add ODT filter 2023-11-28 09:53:13 +01:00
CppunitTest_xmloff_uxmloff.mk
CustomTarget_generated.mk makefile simplification: replace $(call gb_CustomTarget_get_workdir,foo) 2024-05-03 16:06:14 +02:00
IwyuFilter_xmloff.yaml tdf#146619 Recheck xmloff/*cxx with IWYU 2024-03-12 10:37:31 +01:00
JunitTest_xmloff_unoapi.mk
Library_xo.mk
Library_xof.mk
Makefile
Module_xmloff.mk
Package_dtd.mk
README.md

README.md

ODF Import and Export Filter Logic

The main library "xo" contains the basic ODF import/export filter implementation for most applications. The document is accessed via its UNO API, which has the advantage that the same import/export code can be used for text in all applications (from/to Writer/EditEngine). The filter consumes/produces via SAX UNO API interface (implemented in "sax"). Various bits of the ODF filters are also implemented in applications, for example [git:sw/source/filter/xml].

There is a central list of all element or attribute names in [git:include/xmloff/xmltoken.hxx]. The main class of the import filter is SvXMLImport, and of the export filter SvXMLExport.

The Import filter maintains a stack of contexts for each element being read. There are many classes specific to particular elements, derived from SvXMLImportContext.

Note that for export several different versions of ODF are supported, with the default being the latest ODF version with "extensions", which means it may contain elements and attributes that are only in drafts of the specification or are not yet submitted for specification. Documents produced in the other (non-extended) ODF modes are supposed to be strictly conforming to the respective specification, i.e., only markup defined by the ODF specification is allowed.

There is another library "xof" built from the source/transform directory, which is the filter for the OpenOffice.org XML format. This legacy format is a predecessor of ODF and was the default in OpenOffice.org 1.x versions, which did not support ODF. This filter works as a SAX transformation from/to ODF, i.e., when importing a document the transform library reads the SAX events from the file and generates SAX events that are then consumed by the ODF import filter.

OpenOffice.org XML File Format

There is some stuff in the "dtd" directory which is most likely related to the OpenOffice.org XML format but is possibly outdated and obsolete.

Add New XML Tokens

When adding a new XML token, you need to add its entry in the following three files:

  • [git:include/xmloff/xmltoken.hxx]
  • [git:xmloff/source/core/xmltoken.cxx]
  • [git:xmloff/source/token/tokens.txt]