feat: implement Windows file path handling per WHATWG URL spec

Author: mertcanaltin

lib/url-state-machine.js

@@ -575,6 +575,16 @@ URLStateMachine.prototype["parse scheme start"] = function parseSchemeStart(c, c
 URLStateMachine.prototype["parse scheme"] = function parseScheme(c, cStr) {
   if (infra.isASCIIAlphanumeric(c) || c === p("+") || c === p("-") || c === p(".")) {
     this.buffer += cStr.toLowerCase();
+  } else if (c === p(":") && this.buffer.length === 1 &&
+             infra.isASCIIAlpha(this.buffer.codePointAt(0)) &&
+             this.input[this.pointer + 1] === p("\\") &&
+             !this.stateOverride) {
+    this.url.scheme = "file";
+    this.url.host = "";
+    // Preserve original case of drive letter from input
+    const driveLetter = String.fromCodePoint(this.input[this.pointer - 1]);
+    this.buffer = `${driveLetter}:`;
+    this.state = "path";
   } else if (c === p(":")) {
     if (this.stateOverride) {
       if (isSpecial(this.url) && !isSpecialScheme(this.buffer)) {

scripts/get-latest-platform-tests.js

@@ -13,7 +13,7 @@ const path = require("path");
 // 1. Go to https://github.com/web-platform-tests/wpt/tree/master/url
 // 2. Press "y" on your keyboard to get a permalink
 // 3. Copy the commit hash
-const commitHash = "40fc257a28faf7c378f59185235685ea8684e8f4";
+const commitHash = "82f211de961cdbf0deed06083b60d1077fd39f02";
 
 const urlPrefix = `https://raw.githubusercontent.com/web-platform-tests/wpt/${commitHash}/url/`;
 const targetDir = path.resolve(__dirname, "..", "test", "web-platform-tests");