implement str.search(regex) including unicode

+todo.txt

@@ -30,9 +30,6 @@ s = new String('abc')
 Object.getOwnPropertyDescriptor(s, '1')
 //{value: "b", writable: false, enumerable: true, configurable: false}
 
-String.prototype
-  concat, search
-
 Object
   getPrototypeOf, setPrototypeOf
   preventExtensions, isExtensible, seal, isSealed, freeze, isFrozen

php/classes/String.php

@@ -278,8 +278,19 @@ static function getGlobalConstructor() {
       }
       return implode('', $result);
     },
-  'search' => function() {
-      throw new Ex(Error::create('string.search not implemented'));
+  'search' => function($regex) use (&$RegExp) {
+      $self = Func::getContext();
+      if (!($regex instanceof RegExp)) {
+        $regex = $RegExp->construct($regex);
+      }
+      $preg = $regex->toString(true);
+      $success = preg_match($preg, $self->value, $matches, PREG_OFFSET_CAPTURE);
+      if (!$success) {
+        return -1;
+      }
+      $start = substr($self->value, 0, $matches[0][1]);
+      $startLen = mb_strlen($start);
+      return (float)$startLen;
     },
   'toLowerCase' => function() {
       $self = Func::getContext();

test/string.js

@@ -117,6 +117,12 @@ testSuite('strings', function(assert) {
     assert('regex fn unicode in regex', s.replace(/ü/, fn) === 'sst[ü,3]r');
   });
 
+  testSuite('search', function() {
+    assert('simple', 'abcd'.search(/c/) === 2);
+    var i = '↗Զ--x'.search(/-(\w)/);
+    assert('unicode', i === 3);
+  });
+
   testSuite('encode/decode uri functions', function() {
     var chars = "\x00\x01\x02\x03\x04\x05\x06\x07\b\t\n\x0b\f\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff";
     var pctChars = "%00%01%02%03%04%05%06%07%08%09%0A%0B%0C%0D%0E%0F%10%11%12%13%14%15%16%17%18%19%1A%1B%1C%1D%1E%1F%20%21%22%23%24%25%26%27%28%29%2A%2B%2C%2D%2E%2F%30%31%32%33%34%35%36%37%38%39%3A%3B%3C%3D%3E%3F%40%41%42%43%44%45%46%47%48%49%4A%4B%4C%4D%4E%4F%50%51%52%53%54%55%56%57%58%59%5A%5B%5C%5D%5E%5F%60%61%62%63%64%65%66%67%68%69%6A%6B%6C%6D%6E%6F%70%71%72%73%74%75%76%77%78%79%7A%7B%7C%7D%7E%7F%80%81%82%83%84%85%86%87%88%89%8A%8B%8C%8D%8E%8F%90%91%92%93%94%95%96%97%98%99%9A%9B%9C%9D%9E%9F%A0%A1%A2%A3%A4%A5%A6%A7%A8%A9%AA%AB%AC%AD%AE%AF%B0%B1%B2%B3%B4%B5%B6%B7%B8%B9%BA%BB%BC%BD%BE%BF%C0%C1%C2%C3%C4%C5%C6%C7%C8%C9%CA%CB%CC%CD%CE%CF%D0%D1%D2%D3%D4%D5%D6%D7%D8%D9%DA%DB%DC%DD%DE%DF%E0%E1%E2%E3%E4%E5%E6%E7%E8%E9%EA%EB%EC%ED%EE%EF%F0%F1%F2%F3%F4%F5%F6%F7%F8%F9%FA%FB%FC%FD%FE%FF";