Rewrite double.parse.

sdk/lib/core/string.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.core;
 
 /**
  * The String class represents sequences of characters. Strings are
  * immutable. A string is represented by a sequence of Unicode UTF-16
  * code units accessible through the [codeUnitAt] or the
@@ skipping 127 matching lines @@
    */
   String operator +(String other);
 
   /**
    * Returns a substring of this string in the given range.
    * [startIndex] is inclusive and [endIndex] is exclusive.
    */
   String substring(int startIndex, [int endIndex]);
 
   /**
-   * Removes leading and trailing whitespace from a string. If the string
+   * Removes leading and trailing whitespace from a string.
+   *
+   * If the string
    * contains leading or trailing whitespace a new string with no leading and
    * no trailing whitespace is returned. Otherwise, the string itself is
-   * returned.  Whitespace is defined as every Unicode character in the Zs, Zl
+   * returned.
+   *
+   * Whitespace is defined as every Unicode character in the Zs, Zl
    * and Zp categories (this includes no-break space), the spacing control
    * characters from 9 to 13 (tab, lf, vtab, ff and cr), and 0xfeff the BOM
    * character.
    */
   String trim();
 
   /**
    * Returns whether this string contains [other] starting
    * at [startIndex] (inclusive).
    */
@@ skipping 277 matching lines @@
         _position = position - 1;
         _currentCodePoint = _combineSurrogatePair(prevCodeUnit, codeUnit);
         return true;
       }
     }
     _position = position;
     _currentCodePoint = codeUnit;
     return true;
   }
 }