Class Face

constructor

• new Face(blob: Blob, index?: number): Face

  Parameters

  • blob: Blob

    A Blob containing font data.

  • index: number = 0

    The index of the font in the blob. (0 for most files, or a 0-indexed font number if the blob came from a font collection file.)

  Returns Face

Readonlyptr

Readonlyupem

collectUnicodes

• collectUnicodes(): Uint32Array

  Return unicodes the face supports.

  Returns Uint32Array

  A Uint32Array of supported Unicode code points.

getAxisInfos

• getAxisInfos(): Record<string, AxisInfo>

  Return variation axis infos.

  Returns Record<string, AxisInfo>

  A dictionary mapping axis tags to {min, default, max} values.

getFeatureNameIds

• getFeatureNameIds(table: string, featureIndex: number): FeatureNameIds | null

  Get the name IDs of the specified feature.

  Parameters

  • table: string

    The table to query, either "GSUB" or "GPOS".

  • featureIndex: number

    The index of the feature to query.

  Returns FeatureNameIds | null

  An object with name IDs, or null if not found.

getGlyphClass

• getGlyphClass(glyph: number): GlyphClass

  Get the GDEF class of the requested glyph.

  Parameters

  • glyph: number

    The glyph to get the class of.

  Returns GlyphClass

  The GlyphClass of the glyph.

getLanguageFeatureTags

• getLanguageFeatureTags(
      table: string,
      scriptIndex: number,
      languageIndex: number,
  ): string[]

  Return all features in the specified face's GSUB table or GPOS table, underneath the specified script and language.

  Parameters

  • table: string

    The table to query, either "GSUB" or "GPOS".

  • scriptIndex: number

    The index of the script to query.

  • languageIndex: number

    The index of the language to query.

  Returns string[]

  An array of 4-character feature tag strings.

getName

• getName(nameId: number, language: string): string

  Get the name of the specified face.

  Parameters

  • nameId: number

    The ID of the name to get.

  • language: string

    The language of the name to get.

  Returns string

  The name string.

getScriptLanguageTags

• getScriptLanguageTags(table: string, scriptIndex: number): string[]

  Return language tags in the given face's GSUB or GPOS table, underneath the specified script index.

  Parameters

  • table: string

    The table to query, either "GSUB" or "GPOS".

  • scriptIndex: number

    The index of the script to query.

  Returns string[]

  An array of 4-character language tag strings.

getTableFeatureTags

• getTableFeatureTags(table: string): string[]

  Return all features enumerated in the specified face's GSUB table or GPOS table.

  Parameters

  • table: string

    The table to query, either "GSUB" or "GPOS".

  Returns string[]

  An array of 4-character feature tag strings.

getTableScriptTags

• getTableScriptTags(table: string): string[]

  Return all scripts enumerated in the specified face's GSUB table or GPOS table.

  Parameters

  • table: string

    The table to query, either "GSUB" or "GPOS".

  Returns string[]

  An array of 4-character script tag strings.

listNames

• listNames(): NameEntry[]

  Return all names in the specified face's name table.

  Returns NameEntry[]

  An array of {nameId, language} entries.

referenceTable

• referenceTable(table: string): Uint8Array<ArrayBufferLike> | undefined

  Return the binary contents of an OpenType table.

  Parameters

  • table: string

    Table name

  Returns Uint8Array<ArrayBufferLike> | undefined

  A Uint8Array of the table data, or undefined if the table is not found.