6e8819f29b
Support XSL attribute "column" and CSS 4 attribute "spread",
stored in loext:hyphenation-keep-type, to give better control
over hyphenation-keep. E.g. spread: both parts of a hyphenated
word shall lie within a single spread, i.e. when the next page
is not visible at the same time (e.g. the next page is not a
right page of a book).
– css::style::ParaHyphenationKeep is a boolean property now,
importing hyphenation-keep = "page" as true.
– type of ParaHyphenationKeep, including the new non-ODF types
is stored in the new ParagraphProperties::ParaHyphenationKeepType.
– default value of ParaHyphenationKeepType is COLUMN for
interoperability.
– Add checkboxes to Text Flow -> Hyphenation Across in
paragraph dialog:
* Column (previously: Hyphenate across column and page)
* Page
* Spread
– enabling/disabling them follows XSL/CSS 4/loext, i.e.
possible combinations:
* No Hyphenation across
(hyphenation-keep = "page" and loext:hyphenation-keep-type = "column")
* Hyphenation across [x] Column
(hyphenation-keep = "page" and loext:hyphenation-keep-type = "page")
* Hyphenation across [x] Column [x] Page
(hyphenation-keep = "page" and loext:hyphenation-keep-type = "spread")
* Hyphenation across [x] Column [x] Page [x] Spread
(hyphenation-keep = "auto")
– Add ODF import/export
– Update DOCX import
– Add ODF unit tests
Note: recent implementation depends on widow settings: disabling widow
handling allows hyphenation across columns and pages not only in table
cells.
Note: RTF import-only, but not used bPageEnd has been renamed to bKeep.
Depending on the RTF test results, likely it will need to disable
the layout change, e.g. GetKeepType()=ParagraphHyphenationKeepType::AUTO,
if PageEnd uses obsolete hyphenation rule, i.e. shifting only the
hyphenated word to the next page, not the full line.
More information:
– COLUMN (standard XSL value, defined in
https://www.w3.org/TR/2001/REC-xsl-20011015/slice7.html#hyphenation-keep)
– SPREAD and ALWAYS (CSS 4 values of hyphenate-limit-last,
equivalent of hyphenation-keep, defined in
https://www.w3.org/TR/css-text-4/#hyphenate-line-limits).
Follow-up to commit
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|---|---|---|
| .. | ||
| documentation | ||
| dtd | ||
| inc | ||
| qa | ||
| source | ||
| util | ||
| CppunitTest_xmloff_draw.mk | ||
| CppunitTest_xmloff_style.mk | ||
| CppunitTest_xmloff_text.mk | ||
| CppunitTest_xmloff_uxmloff.mk | ||
| CustomTarget_generated.mk | ||
| IwyuFilter_xmloff.yaml | ||
| 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]