ezjww

TypeScript bindings for the Rust ezjww JWW parser and DXF converter.

import { readFileSync } from "node:fs";
import { readDocument, toDxfString } from "ezjww";

const data = readFileSync("sample.jww");
const document = readDocument(data);
for (const diagnostic of document.diagnostics) {
  console.log(diagnostic.code, diagnostic.details);
}
const dxf = toDxfString(data, { explodeInserts: true });

isJwwFile(data) checks the exact eight-byte JwwData. signature at offset 0; it does not use a filename extension. readDocument(data).diagnostics reports structured CP932 replacement events, including absolute byte offsets.

The repository documents the stable audit issue-code catalog in docs/DIAGNOSTICS.md and the signature contract in docs/JWW_SIGNATURE.md.

Browser example

cd packages/ezjww
pnpm install
pnpm run example:browser:dev

The example app parses a dropped .jww file in the browser and shows summary counts, layers, a simple drawing preview, and JSON output.