118 lines
3.6 KiB
ReStructuredText
118 lines
3.6 KiB
ReStructuredText
#################################################
|
|
otlLib: Routines for working with OpenType Layout
|
|
#################################################
|
|
|
|
The ``fontTools.otlLib`` library provides routines to help you create the
|
|
subtables and other data structures you need when you are editing a font's
|
|
``GSUB`` and ``GPOS`` tables: substitution and positioning rules, anchors,
|
|
lookups, coverage tables and so on.
|
|
|
|
------------------------------------------
|
|
High-level OpenType Layout Lookup Builders
|
|
------------------------------------------
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autoclass:: AlternateSubstBuilder
|
|
.. autoclass:: ChainContextPosBuilder
|
|
.. autoclass:: ChainContextSubstBuilder
|
|
.. autoclass:: LigatureSubstBuilder
|
|
.. autoclass:: MultipleSubstBuilder
|
|
.. autoclass:: CursivePosBuilder
|
|
.. autoclass:: MarkBasePosBuilder
|
|
.. autoclass:: MarkLigPosBuilder
|
|
.. autoclass:: MarkMarkPosBuilder
|
|
.. autoclass:: ReverseChainSingleSubstBuilder
|
|
.. autoclass:: SingleSubstBuilder
|
|
.. autoclass:: ClassPairPosSubtableBuilder
|
|
.. autoclass:: PairPosBuilder
|
|
.. autoclass:: SinglePosBuilder
|
|
|
|
--------------------------------------
|
|
Common OpenType Layout Data Structures
|
|
--------------------------------------
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildCoverage
|
|
.. autofunction:: buildLookup
|
|
|
|
------------------------------------
|
|
Low-level GSUB Table Lookup Builders
|
|
------------------------------------
|
|
|
|
These functions deal with the "simple" lookup types. See above for classes to
|
|
help build more complex lookups (contextual and chaining lookups).
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildSingleSubstSubtable
|
|
.. autofunction:: buildMultipleSubstSubtable
|
|
.. autofunction:: buildAlternateSubstSubtable
|
|
.. autofunction:: buildLigatureSubstSubtable
|
|
|
|
--------------------------
|
|
GPOS Shared Table Builders
|
|
--------------------------
|
|
|
|
The functions help build the `GPOS shared tables <https://docs.microsoft.com/en-us/typography/opentype/spec/gpos#shared-tables-value-record-anchor-table-and-mark-array-table>`_
|
|
as defined in the OpenType spec: value records, anchors, mark arrays and
|
|
mark record tables.
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
.. autofunction:: buildValue
|
|
.. autofunction:: buildAnchor
|
|
.. autofunction:: buildMarkArray
|
|
.. autofunction:: buildDevice
|
|
.. autofunction:: buildBaseArray
|
|
.. autofunction:: buildComponentRecord
|
|
|
|
------------------------------------
|
|
Low-level GPOS Table Lookup Builders
|
|
------------------------------------
|
|
|
|
These functions deal with the "simple" lookup types. See above for classes to
|
|
help build more complex lookups (contextual and chaining lookups).
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildCursivePosSubtable
|
|
.. autofunction:: buildLigatureArray
|
|
.. autofunction:: buildMarkBasePos
|
|
.. autofunction:: buildMarkBasePosSubtable
|
|
.. autofunction:: buildMarkLigPos
|
|
.. autofunction:: buildMarkLigPosSubtable
|
|
.. autofunction:: buildPairPosClassesSubtable
|
|
.. autofunction:: buildPairPosGlyphs
|
|
.. autofunction:: buildPairPosGlyphsSubtable
|
|
.. autofunction:: buildSinglePos
|
|
.. autofunction:: buildSinglePosSubtable
|
|
|
|
----------------------------
|
|
GDEF Table Subtable Builders
|
|
----------------------------
|
|
|
|
These functions build subtables for elements of the ``GDEF`` table.
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildAttachList
|
|
.. autofunction:: buildLigCaretList
|
|
.. autofunction:: buildMarkGlyphSetsDef
|
|
|
|
------------------
|
|
STAT Table Builder
|
|
------------------
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildStatTable
|
|
|
|
------------------
|
|
MATH Table Builder
|
|
------------------
|
|
|
|
.. currentmodule:: fontTools.otlLib.builder
|
|
|
|
.. autofunction:: buildMathTable
|