39 lines
2 KiB
Text
39 lines
2 KiB
Text
Contains ODF import and export filter logic.
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The main library "xo" contains the basic ODF import/export filter
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implementation for most applications. The document is accessed
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via its UNO API, which has the advantage that the same import/export
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code can be used for text in all applications (from/to Writer/EditEngine).
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The filter consumes/produces via SAX UNO API interface (implemented in
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"sax"). Various bits of the ODF filters are also implemented in
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applications, for example sw/source/filter/xml.
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There is a central list of all element or attribute names in
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xmloff/inc/xmloff/token.hxx. The main class of the import filter
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is SvXMLImport, and of the export filter SvXMLExport.
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The Import filter maintains a stack of contexts for each element being
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read. There are many classes specific to particular elements, derived
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from SvXMLImportContext.
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Note that for export several different versions of ODF are supported,
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with the default being the latest ODF version with "extensions", which
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means it may contain elements and attributes that are only in drafts of
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the specification or are not yet submitted for specification. Documents
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produced in the other (non-extended) ODF modes are supposed to be
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strictly conforming to the respecive specification, i.e., only markup
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defined by the ODF specification is allowed.
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There is another library "xof" built from the source/transform directory,
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which is the filter for the OpenOffice.org XML format. This legacy format
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is a predecessor of ODF and was the default in OpenOffice.org 1.x versions,
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which did not support ODF. This filter works as a SAX transformation
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from/to ODF, i.e., when importing a document the transform library reads
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the SAX events from the file and generates SAX events that are then
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consumed by the ODF import filter.
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http://www.openoffice.org/xml/general.html
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http://www.openoffice.org/xml/xml_specification.pdf
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There is some stuff in the "dtd" directory which is most likely related
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to the OpenOffice.org XML format but is possibly outdated and obsolete.
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