Move away from Node.js built-ins (#47)

This makes it possible to easily build this project using tools such as Webpack 5.

Author: Tpt

.github/workflows/ci.yml

@@ -89,4 +89,18 @@ jobs:
       - name: Build project
         run: yarn run build
       - run: yarn run spec
-      - run: yarn run spec-role
+      - run: yarn run spec-role
+
+  webpack:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v3
+        with:
+          path: '**/node_modules'
+          key: ${{ runner.os }}-webpack-modules-${{ hashFiles('**/yarn.lock') }}
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+      - run: yarn install
+      - run: npx webpack

README.md

@@ -22,17 +22,6 @@ $ yarn add rdfa-streaming-parser
 ```
 
 This package also works out-of-the-box in browsers via tools such as [webpack](https://webpack.js.org/) and [browserify](http://browserify.org/).
-Webpack 5 no longer ships with Node.js core libraries, including `stream`.
-The [node-polyfill-webpack-plugin](https://www.npmjs.com/package/node-polyfill-webpack-plugin) module can provide this, with this addition to the webpack config:
-
-``` javascript
-const NodePolyfillPlugin = require("node-polyfill-webpack-plugin");
-
-module.exports = {
-    …
-    plugins: [ … new NodePolyfillPlugin() ]
-}
-```
 
 ## Require
 

lib/RdfaParser.ts

@@ -2,7 +2,7 @@ import {DomHandler} from "domhandler";
 import EventEmitter = NodeJS.EventEmitter;
 import {Parser as HtmlParser} from "htmlparser2";
 import * as RDF from "@rdfjs/types";
-import {PassThrough, Transform, TransformCallback} from "stream";
+import {PassThrough, Transform} from "readable-stream";
 import {IActiveTag} from "./IActiveTag";
 import {IHtmlParseListener} from "./IHtmlParseListener";
 import * as INITIAL_CONTEXT_XHTML from "./initial-context-xhtml.json";
@@ -73,12 +73,12 @@ export class RdfaParser extends Transform implements RDF.Sink<EventEmitter, RDF.
     return parsed;
   }
 
-  public _transform(chunk: any, encoding: string, callback: TransformCallback): void {
+  public _transform(chunk: any, encoding: string, callback: (error?: Error | null, data?: any) => void): void {
     this.parser.write(chunk.toString());
     callback();
   }
 
-  public _flush(callback: TransformCallback): void {
+  public _flush(callback: (error?: Error | null, data?: any) => void): void {
     this.parser.end();
     callback();
   }

package.json

@@ -31,7 +31,8 @@
     "@rdfjs/types": "*",
     "htmlparser2": "^8.0.0",
     "rdf-data-factory": "^1.1.0",
-    "relative-to-absolute-iri": "^1.0.2"
+    "relative-to-absolute-iri": "^1.0.2",
+    "readable-stream": "^4.0.0"
   },
   "pre-commit": [
     "build",
@@ -41,7 +42,7 @@
   "devDependencies": {
     "@types/jest": "^28.0.0",
     "@types/jest-each": "^24.3.0",
-    "@types/node": "^18.0.0",
+    "@types/readable-stream": "^2.3.14",
     "arrayify-stream": "^2.0.0",
     "coveralls": "^3.0.0",
     "jest": "^28.0.0",
@@ -53,9 +54,12 @@
     "rdf-test-suite": "^1.13.4",
     "streamify-string": "^1.0.1",
     "ts-jest": "^28.0.0",
+    "ts-loader": "^9.3.1",
     "tslint": "^6.0.0",
     "tslint-eslint-rules": "^5.3.1",
-    "typescript": "^4.0.0"
+    "typescript": "^4.0.0",
+    "webpack": "^5.73.0",
+    "webpack-cli": "^4.10.0"
   },
   "jest": {
     "globals": {

webpack.config.js

@@ -0,0 +1,22 @@
+const path = require('path');
+
+module.exports = {
+    entry: './lib/RdfaParser.ts',
+    mode: 'development',
+    module: {
+        rules: [
+            {
+                test: /\.tsx?$/,
+                use: 'ts-loader',
+                exclude: /node_modules/,
+            },
+        ],
+    },
+    resolve: {
+        extensions: ['.tsx', '.ts', '.js'],
+    },
+    output: {
+        filename: 'out.js',
+        path: path.resolve(__dirname, 'dist'),
+    },
+};