url: adding WHATWG URL support

Implements WHATWG URL support. Example:

```
var u = new url.URL('http://example.org');
```

Currently passing all WHATWG url parsing tests and all but two of the
setter tests. The two setter tests are intentionally skipped for now
but will be revisited.

PR-URL: https://github.com/nodejs/node/pull/7448
Reviewed-By: Ilkka Myller <ilkka.myller@nodefield.com>

1 files changed, 4 insertions, 66 deletions

diff --git a/lib/url.js b/lib/url.js
index d935726872..201ebfedcc 100644
--- a/lib/url.js
+++ b/lib/url.js
@@ -10,10 +10,14 @@ function importPunycode() {
 
 const { toASCII } = importPunycode();
 
+const internalUrl = require('internal/url');
+const encodeAuth = internalUrl.encodeAuth;
 exports.parse = urlParse;
 exports.resolve = urlResolve;
 exports.resolveObject = urlResolveObject;
 exports.format = urlFormat;
+exports.URL = internalUrl.URL;
+
 
 exports.Url = Url;
 
@@ -942,69 +946,3 @@ function spliceOne(list, index) {
     list[i] = list[k];
   list.pop();
 }
-
-var hexTable = new Array(256);
-for (var i = 0; i < 256; ++i)
-  hexTable[i] = '%' + ((i < 16 ? '0' : '') + i.toString(16)).toUpperCase();
-function encodeAuth(str) {
-  // faster encodeURIComponent alternative for encoding auth uri components
-  var out = '';
-  var lastPos = 0;
-  for (var i = 0; i < str.length; ++i) {
-    var c = str.charCodeAt(i);
-
-    // These characters do not need escaping:
-    // ! - . _ ~
-    // ' ( ) * :
-    // digits
-    // alpha (uppercase)
-    // alpha (lowercase)
-    if (c === 0x21 || c === 0x2D || c === 0x2E || c === 0x5F || c === 0x7E ||
-        (c >= 0x27 && c <= 0x2A) ||
-        (c >= 0x30 && c <= 0x3A) ||
-        (c >= 0x41 && c <= 0x5A) ||
-        (c >= 0x61 && c <= 0x7A)) {
-      continue;
-    }
-
-    if (i - lastPos > 0)
-      out += str.slice(lastPos, i);
-
-    lastPos = i + 1;
-
-    // Other ASCII characters
-    if (c < 0x80) {
-      out += hexTable[c];
-      continue;
-    }
-
-    // Multi-byte characters ...
-    if (c < 0x800) {
-      out += hexTable[0xC0 | (c >> 6)] + hexTable[0x80 | (c & 0x3F)];
-      continue;
-    }
-    if (c < 0xD800 || c >= 0xE000) {
-      out += hexTable[0xE0 | (c >> 12)] +
-             hexTable[0x80 | ((c >> 6) & 0x3F)] +
-             hexTable[0x80 | (c & 0x3F)];
-      continue;
-    }
-    // Surrogate pair
-    ++i;
-    var c2;
-    if (i < str.length)
-      c2 = str.charCodeAt(i) & 0x3FF;
-    else
-      c2 = 0;
-    c = 0x10000 + (((c & 0x3FF) << 10) | c2);
-    out += hexTable[0xF0 | (c >> 18)] +
-           hexTable[0x80 | ((c >> 12) & 0x3F)] +
-           hexTable[0x80 | ((c >> 6) & 0x3F)] +
-           hexTable[0x80 | (c & 0x3F)];
-  }
-  if (lastPos === 0)
-    return str;
-  if (lastPos < str.length)
-    return out + str.slice(lastPos);
-  return out;
-}