History

Caolán McNamara 6875c975f8 upgrade libxml2, libxslt & liblangtag what I'm really after is some vexating not-reproducible oss-fuzz msan warnings when using libxml2 in the fodt2pdf fuzzer. So lets upgrade libxml2 to the latest, which requires bumping libxslt, and then requires a newer liblangtag because of no longer implicit includes that it depended on. xmlKeepBlanksDefaultValue and xmlSubstituteEntitiesDefault are deprecated, we should get around to updating those uses Change-Id: I8fda0dffda0a7ea65407d246a3121875cb8ad4a4 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/161598 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>		2024-01-05 11:05:36 +01:00
..
inc
qa	UnoApiTest::loadFromURL -> UnoApiTest::loadFromFile	2024-01-03 07:51:28 +01:00
source	upgrade libxml2, libxslt & liblangtag	2024-01-05 11:05:36 +01:00
uiconfig/ui	Add export sheet range option to calc	2023-12-21 10:49:16 +01:00
AllLangMoTarget_flt.mk
Configuration_filter.mk	get rid of warnings when reportbuilder is not configured for build	2023-12-21 07:03:28 +01:00
CppunitTest_filter_dialogs_test.mk
CppunitTest_filter_msfilter.mk
CppunitTest_filter_pdf.mk
CppunitTest_filter_priority.mk
CppunitTest_filter_svg.mk
CppunitTest_filter_textfilterdetect.mk
CppunitTest_filter_xslt.mk
CustomTarget_svg.mk
IwyuFilter_filter.yaml
JunitTest_filter_complex.mk
Library_filterconfig.mk
Library_graphicfilter.mk
Library_icg.mk
Library_msfilter.mk
Library_odfflatxml.mk
Library_pdffilter.mk
Library_storagefd.mk
Library_svgfilter.mk
Library_t602filter.mk
Library_textfd.mk
Library_xmlfa.mk
Library_xmlfd.mk
Library_xsltdlg.mk
Library_xsltfilter.mk
Makefile
Module_filter.mk
Package_docbook.mk
Package_xhtml.mk
Package_xslt.mk
README.md
UIConfig_filter.mk

README.md

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.