VTT* Visual TrueType private tables

The tables listed on this page are used by Microsoft’s Visual TrueType application.

TSI0: Glyph Program Text Indices

TSI{0,1,2,3,5} are private tables used by Microsoft Visual TrueType (VTT) tool to store its hinting source data.

TSI0 is the index table containing the lengths and offsets for the glyph programs and ‘extra’ programs (‘fpgm’, ‘prep’, and ‘cvt’) that are contained in the TSI1 table.

fontTools.ttLib.tables.T_S_I__0.fixlongs(glyphID, textLength, textOffset)[source]
class fontTools.ttLib.tables.T_S_I__0.table_T_S_I__0(tag=None)[source]

Bases: DefaultTable

dependencies = ['TSI1']
decompile(data, ttFont)[source]
compile(ttFont)[source]
set(indices, extra_indices)[source]
toXML(writer, ttFont)[source]

TSI1: Glyph Program Text UTF-8 Text Dump

TSI{0,1,2,3,5} are private tables used by Microsoft Visual TrueType (VTT) tool to store its hinting source data.

TSI1 contains the text of the glyph programs in the form of low-level assembly code, as well as the ‘extra’ programs ‘fpgm’, ‘ppgm’ (i.e. ‘prep’), and ‘cvt’.

class fontTools.ttLib.tables.T_S_I__1.table_T_S_I__1(tag=None)[source]

Bases: LogMixin, DefaultTable

extras = {65530: 'ppgm', 65531: 'cvt', 65532: 'reserved', 65533: 'fpgm'}
indextable = 'TSI0'
decompile(data, ttFont)[source]
compile(ttFont)[source]
toXML(writer, ttFont)[source]
fromXML(name, attrs, content, ttFont)[source]

TSI2: VTT Talk Text Indices

TSI{0,1,2,3,5} are private tables used by Microsoft Visual TrueType (VTT) tool to store its hinting source data.

TSI2 is the index table containing the lengths and offsets for the glyph programs that are contained in the TSI3 table. It uses the same format as the TSI0 table.

class fontTools.ttLib.tables.T_S_I__2.table_T_S_I__2(tag=None)[source]

Bases: table_T_S_I__0

dependencies = ['TSI3']

TSI3: VTT Talk UTF-8 Text Dump

TSI{0,1,2,3,5} are private tables used by Microsoft Visual TrueType (VTT) tool to store its hinting source data.

TSI3 contains the text of the glyph programs in the form of ‘VTTTalk’ code.

class fontTools.ttLib.tables.T_S_I__3.table_T_S_I__3(tag=None)[source]

Bases: table_T_S_I__1

extras = {65530: 'reserved0', 65531: 'reserved1', 65532: 'reserved2', 65533: 'reserved3'}
indextable = 'TSI2'

TSI5: VTT Character Group Flag

TSI{0,1,2,3,5} are private tables used by Microsoft Visual TrueType (VTT) tool to store its hinting source data.

TSI5 contains the VTT character groups.

class fontTools.ttLib.tables.T_S_I__5.table_T_S_I__5(tag=None)[source]

Bases: DefaultTable

decompile(data, ttFont)[source]
compile(ttFont)[source]
toXML(writer, ttFont)[source]
fromXML(name, attrs, content, ttFont)[source]

TSIB: VTT BASE Table Text Source

class fontTools.ttLib.tables.T_S_I_B_.table_T_S_I_B_(tag=None)[source]

Bases: table_T_S_I_V_

TSIC: VTT Variation CVT Window Source

class fontTools.ttLib.tables.T_S_I_C_.table_T_S_I_C_(tag=None)[source]

Bases: BaseTTXConverter

TSID: VTT GDEF Table Text Source

class fontTools.ttLib.tables.T_S_I_D_.table_T_S_I_D_(tag=None)[source]

Bases: table_T_S_I_V_

TSIJ: VTT JSTF Table Text Source

class fontTools.ttLib.tables.T_S_I_J_.table_T_S_I_J_(tag=None)[source]

Bases: table_T_S_I_V_

TSIP: VTT GPOS Table Text Source

class fontTools.ttLib.tables.T_S_I_P_.table_T_S_I_P_(tag=None)[source]

Bases: table_T_S_I_V_

TSIS: VTT GSUB Table Text Source

class fontTools.ttLib.tables.T_S_I_S_.table_T_S_I_S_(tag=None)[source]

Bases: table_T_S_I_V_

TSIV

class fontTools.ttLib.tables.T_S_I_V_.table_T_S_I_V_(tag=None)[source]

Bases: asciiTable

toXML(writer, ttFont)[source]
fromXML(name, attrs, content, ttFont)[source]