Support IE and Safari stack traces.

pkg/stack_trace/lib/src/frame.dart

 // Copyright (c) 2013, 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.
 
 library frame;
 
 
 import 'package:path/path.dart' as path;
 
 import 'trace.dart';
@@ skipping 116 matching lines @@
       var member = match[1].replaceAll("<anonymous>", "<fn>");
       return new Frame(uri, int.parse(match[3]), int.parse(match[4]), member);
     } else {
       // The second form looks like " at URI:LINE:COL", and is used for
       // anonymous functions.
       var uri = Uri.parse(match[5]);
       return new Frame(uri, int.parse(match[6]), int.parse(match[7]), "<fn>");
     }
   }
 
+  /// Parses a string representation of an IE stack frame.
+  ///
+  /// IE10+ frames look just like V8 frames. Prior to IE10, stack traces can't
+  /// be retrieved.
+  factory Frame.parseIE(String frame) => new Frame.parseV8(frame);
+
   /// Parses a string representation of a Firefox stack frame.
   factory Frame.parseFirefox(String frame) {
     var match = _firefoxFrame.firstMatch(frame);
     if (match == null) {
       throw new FormatException(
           "Couldn't parse Firefox stack trace line '$frame'.");
     }
 
     var uri = Uri.parse(match[3]);
     var member = match[1];
     if (member == "") {
       member = "<fn>";
     } else if (match[2] != null) {
       member = "$member.<fn>";
     }
     // Some Firefox members have initial dots. We remove them for consistency
     // with other platforms.
     member = member.replaceFirst(_initialDot, '');
     return new Frame(uri, int.parse(match[4]), null, member);
   }
 
+  /// Parses a string representation of a Safari stack frame.
+  ///
+  /// Safari 6+ frames look just like Firefox frames. Prior to Safari 6, stack
+  /// traces can't be retrieved.
+  factory Frame.parseSafari(String frame) => new Frame.parseFirefox(frame);
+
   /// Parses this package's string representation of a stack frame.
   factory Frame.parseFriendly(String frame) {
     var match = _friendlyFrame.firstMatch(frame);
     if (match == null) {
       throw new FormatException(
           "Couldn't parse package:stack_trace stack trace line '$frame'.");
     }
 
     var uri = Uri.parse(match[1]);
     // If there's no scheme, this is a relative URI. We should interpret it as
     // relative to the current working directory.
     if (uri.scheme == '') {
       uri = path.toUri(path.absolute(path.fromUri(uri)));
     }
 
     var line = match[2] == null ? null : int.parse(match[2]);
     var column = match[3] == null ? null : int.parse(match[3]);
     return new Frame(uri, line, column, match[4]);
   }
 
   Frame(this.uri, this.line, this.column, this.member);
 
   String toString() => '$location in $member';
 }