d22f3b8c78
(see f4238ed900cdfa65d447fbef81b2e8ae95095a4e "Revert 'XSLT2Transformer::create should always succeed'": "LO does not ship this service, it's only provided by Saxon extension") Change-Id: I8ff8c9e4bd0eae7055dcb4fc83a04ea41310b9a8 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147038 Tested-by: Jenkins Reviewed-by: Stephan Bergmann <sbergman@redhat.com>
LibreOffice Filters
Filter registration and some simple filters (also descriptions).
Desperate splitting of code into small shared libraries for historical
reasons presumably (OS/2 and Windows 3.x). The libraries produced from
the code in each subdirectory of filter/source/graphicfilter are
graphic format import or export filters. But they don't have uniform
API. Some have either a GraphicImport or GraphicExport entry point,
and are loaded and used in a uniform fashion from code in
svtools/source/filter/filter.cxx. Others have different API and are
loaded from other places. For instance icgm has ImportCGM, and is
loaded and used by sd/source/filter/cgm/sdcgmfilter.cxx (!).
Svgreader is used for "File -> Open" and then to choose the svg file.
For "Insert -> Picture -> From File", see svgio/source/svgreader directory.
Filter Configuration
The filter configuration consists of two parts, the type definition in
filter/source/config/fragments/types/ and the actual filter definition
in filter/source/config/fragments/filters/.
Each file type e.g. text file should be represented by exactly one type definition. This type can then be referenced by several different filters, e.g. calc text, writer text.