Module patchmap

Loads incremental font transfer https://w3c.github.io/IFT/Overview.html patch mappings.

The IFT and IFTX tables encode mappings from subset definitions to URL’s which host patches that can be applied to the font to add support for the corresponding subset definition.

Structs

• PatchUri
  Stores the information needed to create the URI which points to and incremental font transfer patch.
• SubsetDefinition
  Stores a description of a font subset over codepoints, feature tags, and design space.

Enums

• PatchEncoding
  Models the encoding type for a incremental font transfer patch. See: https://w3c.github.io/IFT/Overview.html#font-patch-formats-summary

Functions

• intersecting_patches
  Find the set of patches which intersect the specified subset definition.