Add node polyfills for unicode-properties package in the browser

Author: carlobeltrame

packages/unicode-properties/package.json

@@ -0,0 +1,32 @@
+{
+  "name": "@react-pdf/unicode-properties",
+  "version": "2.6.0",
+  "license": "MIT",
+  "description": "Provides fast access to unicode character properties",
+  "author": "Devon Govett <devongovett@gmail.com>",
+  "main": "lib/unicode-properties.cjs.js",
+  "module": "lib/unicode-properties.es.js",
+  "browser": {
+    "lib/unicode-properties.cjs.js": "lib/unicode-properties.browser.cjs.js",
+    "lib/unicode-properties.es.js": "lib/unicode-properties.browser.es.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/diegomura/react-pdf.git",
+    "directory": "packages/unicode-properties"
+  },
+  "scripts": {
+    "test": "jest",
+    "build": "node generate.js && rollup -c",
+    "watch": "node generate.js && rollup -c -w"
+  },
+  "dependencies": {
+    "unicode-trie": "^0.3.0"
+  },
+  "devDependencies": {
+    "codepoints": "^1.2.0"
+  },
+  "files": [
+    "lib"
+  ]
+}

packages/unicode-properties/rollup.config.js

@@ -0,0 +1,67 @@
+import json from '@rollup/plugin-json';
+import babel from '@rollup/plugin-babel';
+import nodePolyfills from 'rollup-plugin-polyfill-node';
+import pkg from './package.json';
+
+const cjs = {
+  exports: 'named',
+  format: 'cjs',
+};
+
+const esm = {
+  format: 'es',
+};
+
+const getCJS = override => Object.assign({}, cjs, override);
+const getESM = override => Object.assign({}, esm, override);
+
+const input = 'index.js';
+
+const babelConfig = ({ browser }) => ({
+  babelrc: false,
+  babelHelpers: 'runtime',
+  exclude: 'node_modules/**',
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        loose: true,
+        modules: false,
+        targets: { node: '12', browsers: 'last 2 versions' },
+      },
+    ],
+  ],
+  plugins: [['@babel/plugin-transform-runtime', { version: '^7.16.4' }]],
+});
+
+const getExternal = () => [
+  ...(Object.keys(pkg.dependencies)),
+];
+
+const getPlugins = ({ browser }) => [
+  json(),
+  babel(babelConfig({ browser })),
+  ...(browser ? [ nodePolyfills({ include: [ /unicode-properties\/index\.js/, /polyfill/ ] }) ] : []),
+];
+
+const serverConfig = {
+  input,
+  output: [
+    getESM({ file: 'lib/unicode-properties.es.js' }),
+    getCJS({ file: 'lib/unicode-properties.cjs.js' }),
+  ],
+  external: getExternal(),
+  plugins: getPlugins({ browser: false }),
+};
+
+const browserConfig = {
+  input,
+  output: [
+    getESM({ file: 'lib/unicode-properties.browser.es.js' }),
+    getCJS({ file: 'lib/unicode-properties.browser.cjs.js' }),
+  ],
+  external: getExternal(),
+  plugins: getPlugins({ browser: true }),
+};
+
+export default [serverConfig, browserConfig];