feat: Re-optimize alphabet for Brotli (only chars unused by gzip backrefs)

non-secure/index.js

@@ -1,7 +1,11 @@
 // This alphabet uses `A-Za-z0-9_-` symbols.
-// The order of characters is optimized for better gzip compression
+// The order of characters is optimized for better gzip and brotli compression.
+// References to the same file (works both for gzip and brotli):
+// `'use`, `andom`, and `rict'`
+// References to the brotli default dictionary:
+// `-26T`, `1983`, `40px`, `75px`, `bush`, `jack`, `mind`, `very`, and `wolf`
 let urlAlphabet =
-  'useandom-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_bfghjklpqvwxyzrict'
+  'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict'
 
 let customAlphabet = (alphabet, size) => {
   return () => {

package.json

@@ -116,6 +116,52 @@
       "import": "{ customAlphabet }",
       "path": "async/index.js",
       "limit": "163 B"
+    },
+    {
+      "name": "nanoid (brotli)",
+      "brotli": true,
+      "import": "{ nanoid }",
+      "limit": "104 B"
+    },
+    {
+      "name": "customAlphabet (brotli)",
+      "brotli": true,
+      "import": "{ customAlphabet }",
+      "limit": "143 B"
+    },
+    {
+      "name": "urlAlphabet (brotli)",
+      "brotli": true,
+      "import": "{ urlAlphabet }",
+      "limit": "31 B"
+    },
+    {
+      "name": "non-secure nanoid (brotli)",
+      "brotli": true,
+      "import": "{ nanoid }",
+      "path": "non-secure/index.js",
+      "limit": "72 B"
+    },
+    {
+      "name": "non-secure customAlphabet (brotli)",
+      "brotli": true,
+      "import": "{ customAlphabet }",
+      "path": "non-secure/index.js",
+      "limit": "32 B"
+    },
+    {
+      "name": "async nanoid (brotli)",
+      "brotli": true,
+      "import": "{ nanoid }",
+      "path": "async/index.js",
+      "limit": "111 B"
+    },
+    {
+      "name": "async customAlphabet (brotli)",
+      "brotli": true,
+      "import": "{ customAlphabet }",
+      "path": "async/index.js",
+      "limit": "130 B"
     }
   ],
   "eslintConfig": {

url-alphabet/index.js

@@ -1,6 +1,7 @@
 // This alphabet uses `A-Za-z0-9_-` symbols.
-// The order of characters is optimized for better gzip compression
+// The order of characters is optimized for better gzip and brotli compression.
+// Same as in non-secure/index.js
 let urlAlphabet =
-  'use-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abdfghjklmnopqvwxyzrict'
+  'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict'
 
 module.exports = { urlAlphabet }