gcid: Glyph ID to CID table

The gcid table is an Apple Advanced Typography (AAT) table.

class fontTools.ttLib.tables._g_c_i_d.table__g_c_i_d(tag: str | bytes | None = None)[source]

Bases: BaseTTXConverter

Glyph ID to CID table

The AAT gcid table stores glyphID-to-CID mappings.

See also https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6gcid.html