Add Portuguese wordlist

README.md

@@ -52,7 +52,7 @@ await bip39.mnemonicToSeed(mn, 'password');
 bip39.mnemonicToSeedSync(mn, 'password');
 ```
 
-This submodule contains the word lists defined by BIP39 for Czech, English, French, Italian, Japanese, Korean, Simplified and Traditional Chinese, and Spanish. These are not imported by default, as that would increase bundle sizes too much. Instead, you should import and use them explicitly.
+This submodule contains the word lists defined by BIP39 for Czech, English, French, Italian, Japanese, Korean, Portuguese, Simplified and Traditional Chinese, and Spanish. These are not imported by default, as that would increase bundle sizes too much. Instead, you should import and use them explicitly.
 
 ```typescript
 function generateMnemonic(wordlist: string[], strength?: number): string;
@@ -72,9 +72,10 @@ import { wordlist as french } from '@scure/bip39/wordlists/french';
 import { wordlist as italian } from '@scure/bip39/wordlists/italian';
 import { wordlist as japanese } from '@scure/bip39/wordlists/japanese';
 import { wordlist as korean } from '@scure/bip39/wordlists/korean';
-import { wordlist as simp } from '@scure/bip39/wordlists/simplified-chinese';
+import { wordlist as portuguese } from '@scure/bip39/wordlists/portuguese';
+import { wordlist as simplifiedChinese } from '@scure/bip39/wordlists/simplified-chinese';
 import { wordlist as spanish } from '@scure/bip39/wordlists/spanish';
-import { wordlist as trad } from '@scure/bip39/wordlists/traditional-chinese';
+import { wordlist as traditionalChinese } from '@scure/bip39/wordlists/traditional-chinese';
 ```
 
 The module implements [bip39](https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki) standard:

package.json

@@ -39,9 +39,10 @@
   "license": "MIT",
   "scripts": {
     "build": "tsc && tsc -p tsconfig.esm.json",
-    "lint": "prettier --check 'src/**/*.ts' 'test/*.test.ts'",
-    "format": "prettier --write 'src/**/*.ts' 'test/*.test.ts'",
-    "test": "cd test && tsc && node bip39.test.js"
+    "lint": "prettier --check 'src/**/*.ts' 'test/*.test.ts' 'scripts/*.js'",
+    "format": "prettier --write 'src/**/*.ts' 'test/*.test.ts' 'scripts/*.js'",
+    "test": "cd test && tsc && node bip39.test.js",
+    "fetch-wordlist": "./scripts/fetch-wordlist.js"
   },
   "exports": {
     ".": {

scripts/fetch-wordlist.js

@@ -0,0 +1,54 @@
+#!/usr/bin/env node
+
+// dependencies
+const path = require('path');
+const fs = require('fs');
+const util = require('util');
+const assert = require('assert');
+const writeFileAsync = util.promisify(fs.writeFile);
+
+// arguments
+const arg = process.argv[2];
+if (arg === undefined) {
+  console.error('Supply language (lowercased, snakecased) argument.');
+  process.exit();
+}
+
+// parse language argument
+const filenameSnakeCased = arg;
+const parts = arg.split('_');
+const filenameKebabCased = parts.length > 1 ? `${parts[1]}-${parts[0]}` : arg;
+
+// fetch, validate and save file
+(async () => {
+  try {
+    // fetch
+    const url = `https://raw.githubusercontent.com/bitcoin/bips/master/bip-0039/${filenameSnakeCased}.txt`;
+    const response = await fetch(url);
+    if (response.ok === false) throw new Error(`Fetch (${url}) failed`);
+    const txtContent = await response.text();
+
+    // remove trailing line breaks
+    const wordlist = txtContent.replace(/\n+$/, '');
+
+    // validate .txt file content
+    validateTxtContent(wordlist);
+
+    // write .ts file
+    const tsContent = `export const wordlist: string[] = \`${wordlist}\`.split('\\n');\n`;
+    await writeFileAsync(
+      path.join(__dirname, '..', 'src/wordlists', `${filenameKebabCased}.ts`),
+      tsContent
+    );
+  } catch (err) {
+    console.error(err);
+  }
+})();
+
+// assertions
+const validateTxtContent = (txtContent) => {
+  const words = txtContent.split('\n');
+  const emptyLines = words.filter((word) => word.trim() === '');
+  assert.equal(emptyLines.length, 0);
+  assert.equal(words.length, 2048);
+};