| ################################################# |
| 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 |
| ------------------------------------------ |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: AlternateSubstBuilder, ChainContextPosBuilder, ChainContextSubstBuilder, LigatureSubstBuilder, MultipleSubstBuilder, CursivePosBuilder, MarkBasePosBuilder, MarkLigPosBuilder, MarkMarkPosBuilder, ReverseChainSingleSubstBuilder, SingleSubstBuilder, ClassPairPosSubtableBuilder, PairPosBuilder, SinglePosBuilder |
| :member-order: bysource |
| |
| -------------------------------------- |
| Common OpenType Layout Data Structures |
| -------------------------------------- |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildCoverage, 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). |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildSingleSubstSubtable, buildMultipleSubstSubtable, buildAlternateSubstSubtable, 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. |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildValue, buildAnchor, buildMarkArray, buildDevice, buildBaseArray, buildComponentRecord, buildMarkArray, buildValue |
| :member-order: bysource |
| |
| ------------------------------------ |
| 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). |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildCursivePosSubtable, buildLigatureArray, buildMarkBasePos, buildMarkBasePosSubtable, buildMarkLigPos, buildMarkLigPosSubtable, buildPairPosClassesSubtable, buildPairPosGlyphs, buildPairPosGlyphsSubtable, buildSinglePos, buildSinglePosSubtable |
| :member-order: bysource |
| |
| ---------------------------- |
| GDEF Table Subtable Builders |
| ---------------------------- |
| |
| These functions build subtables for elements of the ``GDEF`` table. |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildAttachList, buildLigCaretList, buildMarkGlyphSetsDef |
| :member-order: bysource |
| |
| ------------------ |
| STAT Table Builder |
| ------------------ |
| |
| .. automodule:: fontTools.otlLib.builder |
| :members: buildStatTable |
| :member-order: bysource |
