awaforge

aatMorx

AGPL-3.0-onlyRelease 2L4

Table morx — Extended Glyph Metamorphosis (Apple TT RM06).

Module aatMorx | Source packages/front/office/fonts/src/extra/apple-aat/morx.js | Deps fontErrors, fontReader | Worker-safe yes

Parses the structural envelope: header, chain headers, feature table, subtable directory. State-machine bodies are kept as Uint8Array — their decoding is deferred.

Exports

Symbol Type Description
parseMorx function (bytes) => { version, nChains, chains }. Each chains[i] is { defaultFlags, chainLength, features, subtables }, features[i] is { featureType, featureSetting, enableFlags, disableFlags }, and subtables[i] is { length, coverage, type, vertical, descending, bothOrientations, logicalOrder, subFeatureFlags, body: Uint8Array, parsed: false } (morx.js lines 48–122; not documented on a previous revision of this page).
aatMorx factory Factory.

Usage

import fw from '@awacloud/fw';
import { fw_require, modules, extras } from '@awacloud/fonts';

for (const m of [...fw_require, ...modules, ...extras]) fw.runtime.register(m);
const { parseMorx } = fw.runtime.resolve('aatMorx');
const morx = parseMorx(sfnt.tables.morx.bytes);

Notes

  • Subtable type values (from coverage & 0xFF): 0 rearrangement / 1 contextual / 2 ligature / 4 noncontextual / 5 insertion.
  • Every subtable carries parsed: false — the state machine itself is never executed by this module.
  • Requires the fonts-apple-aat bundle.

See also