Files
loongoffice/xmloff
Stephan Bergmann 2bc1a0431b New loplugin:unusedcapturedefault
In sc/qa/unit/ucalc_formula.cxx, dropping the capture-default from the
lExpectedinF lambda revealed that MSVC in C++17 mode (i.e., when building
without --with-latest-c++) requires ROW_RANGE (a local const int variable from
the enclosing TestFormula::testTdf97369) to be captured, even though all uses of
that variable within the lambda body are constant expressions.  That is still
true at least for the latest Visual Studio 2019 version 16.11.1.  (This is not
an issue for the lExpectedinH and lExpectedinI lambdas a few lines further down,
as they, in addition to using that ROW_RANGE, also use the local const double
variables SHIFT1 and SHIFT2, whose uses are not constant expressions, so
they are implicitly captured and loplugin:unusedcapturedefault does not suggest
dropping those lambdas' capture-defaults in the first place.)

Change-Id: Iee7efb485187cbe8eba6a2d470afca4993eb1816
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/120693
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
2021-08-20 14:25:38 +02:00
..
2021-06-26 13:20:07 +02:00
2021-08-20 14:25:38 +02:00
2021-04-19 11:13:41 +02:00

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]