László Németh
e668dc84eb
Add new paragraph justification option "Split compound words" for
custom compound-based "smart" hyphenation. Add compound-based "smart"
hyphenation support for Danish, Dutch, Esperanto, Estonian, German,
Norwegian, Swedish (and potentially, Icelandic, Finnish and
Latvian) languages by fixing Hunspell morphological analysis and the
associated lingucomponent code. (Previously compound-based "smart"
hyphenation was enabled only for Hungarian.)
With the new option it's possible to keep MSO/MS-DOCX interoperability,
also introducing a better hyphenation algorithm for several languages.
Details:
* Add check box to Alignment in paragraph formatting dialog window;
* Store properties in paragraph model:
css::style::ParagraphProperties::ParaIsCompoundBased
* Implement it by checking the new option in the previously
added commit f9f694f5d9f39c5801bc5fec45867252c293bbcb;
* Add ODF import/export (loext:compound-based);
* Add ODF unit tests by the new tdf173389_smart_hyphenation_nl.odt
and tdf173389_smart_hyphenation_hu.odt. Now use the previous
tdf119908_smart_hyphenation_hu for disabled compound-based "smart"
hyphenation, also the new tdf119908_smart_hyphenation_nl.odt.
Note: the Dutch test document results better compound-based
hyphenation in two positions.
* Add Hunspell patch to fix Danish, Dutch, Esperanto, Estonian,
German, Norwegian, Swedish (and future Icelandic, Latvian,
Finnish) morphological analysis for compound word constituents;
* hyphenimp.cxx hyphenate(): fix tokenization for consecutive
pa: elements, like resulted in the fixed Hunspell dictionaries.
Follow-up to commit f9f694f5d9
"tdf#173389 sw: add compound-based “smart” hyphenation for readability".
Change-Id: I4414bd588646ecf6dc86b77642833ac9c7820a98
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/211341
Tested-by: Jenkins
Reviewed-by: László Németh <nemeth@numbertext.org>
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]