voltLib: Read and write MS VOLT projects

• voltToFea: Convert MS VOLT to AFDKO feature files
  • Usage
  • Limitations
  • MarkClassDefinition
  • Group
  • VoltToFea
  • main()

fontTools.voltLib – a package for dealing with Visual OpenType Layout Tool (VOLT) files.

ast

class fontTools.voltLib.ast.Pos(adv, dx, dy, adv_adjust_by, dx_adjust_by, dy_adjust_by)

Bases: NamedTuple

adv: int

Alias for field number 0

dx: int

Alias for field number 1

dy: int

Alias for field number 2

adv_adjust_by: dict

Alias for field number 3

dx_adjust_by: dict

Alias for field number 4

dy_adjust_by: dict

Alias for field number 5

class fontTools.voltLib.ast.Element(location=None)

Bases: object

build(builder)

class fontTools.voltLib.ast.Statement(location=None)

Bases: Element

class fontTools.voltLib.ast.Expression(location=None)

Bases: Element

class fontTools.voltLib.ast.VoltFile

Bases: Statement

build(builder)

class fontTools.voltLib.ast.GlyphDefinition(name, gid, gunicode, gtype, components, location=None)

Bases: Statement

class fontTools.voltLib.ast.GroupDefinition(name, enum, location=None)

Bases: Statement

glyphSet(groups=None)

class fontTools.voltLib.ast.GlyphName(glyph, location=None)

Bases: Expression

A single glyph name, such as cedilla.

glyphSet()

class fontTools.voltLib.ast.Enum(enum, location=None)

Bases: Expression

An enum

glyphSet(groups=None)

class fontTools.voltLib.ast.GroupName(group, parser, location=None)

Bases: Expression

A glyph group

glyphSet(groups=None)

class fontTools.voltLib.ast.Range(start, end, parser, location=None)

Bases: Expression

A glyph range

glyphSet()

class fontTools.voltLib.ast.ScriptDefinition(name, tag, langs, location=None)

Bases: Statement

class fontTools.voltLib.ast.LangSysDefinition(name, tag, features, location=None)

Bases: Statement

class fontTools.voltLib.ast.FeatureDefinition(name, tag, lookups, location=None)

Bases: Statement

class fontTools.voltLib.ast.LookupDefinition(name, process_base, process_marks, mark_glyph_set, direction, reversal, comments, context, sub, pos, location=None)

Bases: Statement

class fontTools.voltLib.ast.SubstitutionDefinition(mapping, location=None)

Bases: Statement

class fontTools.voltLib.ast.SubstitutionSingleDefinition(mapping, location=None)

Bases: SubstitutionDefinition

class fontTools.voltLib.ast.SubstitutionMultipleDefinition(mapping, location=None)

Bases: SubstitutionDefinition

class fontTools.voltLib.ast.SubstitutionLigatureDefinition(mapping, location=None)

Bases: SubstitutionDefinition

class fontTools.voltLib.ast.SubstitutionReverseChainingSingleDefinition(mapping, location=None)

Bases: SubstitutionDefinition

class fontTools.voltLib.ast.PositionAttachDefinition(coverage, coverage_to, location=None)

Bases: Statement

class fontTools.voltLib.ast.PositionAttachCursiveDefinition(coverages_exit, coverages_enter, location=None)

Bases: Statement

class fontTools.voltLib.ast.PositionAdjustPairDefinition(coverages_1, coverages_2, adjust_pair, location=None)

Bases: Statement

class fontTools.voltLib.ast.PositionAdjustSingleDefinition(adjust_single, location=None)

Bases: Statement

class fontTools.voltLib.ast.ContextDefinition(ex_or_in, left=None, right=None, location=None)

Bases: Statement

class fontTools.voltLib.ast.AnchorDefinition(name, gid, glyph_name, component, locked, pos, location=None)

Bases: Statement

class fontTools.voltLib.ast.SettingDefinition(name, value, location=None)

Bases: Statement

error

exception fontTools.voltLib.error.VoltLibError(message, location)

Bases: Exception

lexer

class fontTools.voltLib.lexer.Lexer(text, filename)

Bases: object

NUMBER = 'NUMBER'

STRING = 'STRING'

NAME = 'NAME'

NEWLINE = 'NEWLINE'

CHAR_WHITESPACE_ = ' \t'

CHAR_NEWLINE_ = '\r\n'

CHAR_DIGIT_ = '0123456789'

CHAR_UC_LETTER_ = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

CHAR_LC_LETTER_ = 'abcdefghijklmnopqrstuvwxyz'

CHAR_UNDERSCORE_ = '_'

CHAR_PERIOD_ = '.'

CHAR_NAME_START_ = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._'

CHAR_NAME_CONTINUATION_ = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._0123456789'

next()

location_()

next_()

scan_over_(valid)

scan_until_(stop_at)

parser

class fontTools.voltLib.parser.Parser(path)

Bases: object

make_lexer_(file_or_path)

parse()

parse_def_glyph_()

parse_def_group_()

parse_def_script_()

parse_langsys_()

parse_feature_()

parse_def_lookup_()

parse_context_()

parse_substitution_(reversal)

parse_position_()

parse_attach_()

parse_attach_cursive_()

parse_adjust_pair_()

parse_adjust_single_()

parse_def_anchor_()

parse_adjust_by_()

parse_pos_()

parse_unicode_values_()

parse_enum_()

parse_coverage_()

resolve_group(group_name)

glyph_range(start, end)

parse_ppem_()

parse_noarg_option_()

parse_cmap_format()

is_cur_keyword_(k)

expect_string_()

expect_keyword_(keyword)

expect_name_()

expect_number_()

advance_lexer_()

class fontTools.voltLib.parser.SymbolTable

Bases: object

enter_scope()

exit_scope()

define(name, item)

resolve(name, case_insensitive=True)

class fontTools.voltLib.parser.OrderedSymbolTable

Bases: SymbolTable

enter_scope()

resolve(name, case_insensitive=False)

range(start, end)