Module cache 

Tables parsed once for a font and kept.

A parsed table borrows the bytes it came from, so it cannot simply be stored beside them. Yoke makes that expressible by holding the parsed value together with the tables it borrows, behind an Arc that outlives both however they are dropped.

Every table gets its own cell, so reading one never drags in another. That matters for glyf and loca, which outlines and metrics in both directions all read, and for gvar, which is typically about half a variable font and must not be read to answer what another table can.

Structs

CbdtTables 🔒

Color bitmaps in CBDT, with the CBLC that locates them.

Cff2Font 🔒

Charstring outlines from the CFF2 table.

CffFont 🔒

Charstring outlines from the CFF table.

ColrTables 🔒

The COLR table and the variation tables its paints use.

CpalTable 🔒

The color palettes in CPAL.

EbdtTables 🔒

Monochrome and grayscale bitmaps in EBDT, with the EBLC that locates them.

GlyfLoca 🔒

The outline tables.

GvarTable 🔒

The table that varies glyf outlines.

HvarTable 🔒

The table of horizontal metric variations.

MetricsTable 🔒

The glyph metrics of one direction.

SbixTable 🔒

PNG bitmaps in sbix.

TableCache 🔒

A parsed table held beside the tables it borrows.

VorgTable 🔒

The table of glyph vertical origins.

VvarTable 🔒

The table of vertical metric variations.

Functions

units_per_em 🔒

Returns the design units per em that the font’s metrics use.