office-gobmx/xmloff
Mike Kaganski 512ef23224 tdf#163974: ignore nested footnotes on ODF import
That is a valid, but unsupported, markup, that is explicitly mentioned
in ODF 1.4 part 3 "Schema" sect. 6.3.4 "<text:note-body>":

  Note: The schema allows for the inclusion of <text:note> elements as
  a descendant of a child of the <text:note-body> element. While this
  may be reasonable for note types, it is not reasonable for footnotes
  and endnotes. Conforming consumers need not support notes inside notes.

(The "reasonable for note types" is obviously an editorial error from the time when ODF 1.1 text "reasonable for some future note types"
was reviewed for ODF 1.2.)

As the ODF also specifies, that a conforming consumer "need not
interpret the semantics of all elements, attributes and attribute values"
(ibid., sect. 2.4 "Consumer"), it is OK to silently drop this data, just
as done for other similar cases.

Change-Id: I0a417981087ebf225565628f14409661058d100d
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/176906
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
Tested-by: Jenkins
2024-11-21 12:47:15 +01:00
..
documentation xmloff: document the GutterAtTop Writer setting 2023-10-24 13:46:28 +02:00
dtd
inc tdf#162691: ODF 1.4 Add support for xy and polar handle new attributes 2024-11-12 14:05:10 +01:00
qa loplugin:reftotemp in xmloff 2024-11-13 06:34:57 +01:00
source tdf#163974: ignore nested footnotes on ODF import 2024-11-21 12:47:15 +01:00
util
CppunitTest_xmloff_draw.mk
CppunitTest_xmloff_style.mk
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

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]