@corbet-labs/ctypst

Shared Typst measurement for browser and Node runtimes: the versioned ctypst-measure-v1 protocol, the Typst-WASM adapter, the font manifest, and the canonical font bytes. Mirrors the ctypst Rust crate release line — both artifacts are cut from the same tag with matching hashes.

import { createTypstCompiler, loadFonts } from '@myriaddreamin/typst.ts';
import { CtypstMeasure } from '@corbet-labs/ctypst';

const compiler = createTypstCompiler();
await compiler.init({ beforeBuild: [loadFonts(fontBytes, { assets: false })] });
const measure = new CtypstMeasure(compiler);
const results = await measure.measureAll(items, format);

Layout

• src/protocol.ts — request/result types.
• src/adapter.ts — CtypstMeasure (transport, validation, caching). Bring your own compiler: the browser keeps its worker, incremental compiler, and font initialization.
• src/generated/measure-asset.ts — generated by scripts/sync-assets.sh (runs on prepack): the Typst program text, the manifest, the font file list, and the crate version. Never edited by hand.
• assets/, fonts/ — generated copies of the canonical sources for bundlers and servers that load bytes from disk.
• scripts/conformance.mts — WASM side of the cross-runtime gate: runs protocol/measure-v1 vectors through the adapter and compares with expected.json.

Requests are data, never generated Typst source. Failures are loud: unknown versions, empty or duplicate ids, unknown weights, bad dimensions, missing or unexpected results, and compiler errors all throw.