Fasta infrastructure.

pkg/fasta/lib/src/colors.dart

Index: pkg/fasta/lib/src/colors.dart
diff --git a/pkg/fasta/lib/src/colors.dart b/pkg/fasta/lib/src/colors.dart
new file mode 100644
index 0000000000000000000000000000000000000000..906ac377c50dff821520563f43ad2b5611723ba7
--- /dev/null
+++ b/pkg/fasta/lib/src/colors.dart
@@ -0,0 +1,30 @@
+// 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.
+
+// TODO(ahe): Copied from sdk/pkg/compiler/lib/src/colors.dart.
+library colors;
+
+// See http://en.wikipedia.org/wiki/ANSI_escape_code#CSI_codes
+const String RESET = '\u001b[0m';
+
+// See http://en.wikipedia.org/wiki/ANSI_escape_code#Colors
+const String BLACK_COLOR = '\u001b[30m';
+const String RED_COLOR = '\u001b[31m';
+const String GREEN_COLOR = '\u001b[32m';
+const String YELLOW_COLOR = '\u001b[33m';
+const String BLUE_COLOR = '\u001b[34m';
+const String MAGENTA_COLOR = '\u001b[35m';
+const String CYAN_COLOR = '\u001b[36m';
+const String WHITE_COLOR = '\u001b[37m';
+
+String wrap(String string, String color) => "${color}$string${RESET}";
+
+String black(String string) => wrap(string, BLACK_COLOR);
+String red(String string) => wrap(string, RED_COLOR);
+String green(String string) => wrap(string, GREEN_COLOR);
+String yellow(String string) => wrap(string, YELLOW_COLOR);
+String blue(String string) => wrap(string, BLUE_COLOR);
+String magenta(String string) => wrap(string, MAGENTA_COLOR);
+String cyan(String string) => wrap(string, CYAN_COLOR);
+String white(String string) => wrap(string, WHITE_COLOR);