pkg/utf: fixed layout, added todos, updated docs and homepage pubspec links

pkg/utf/test/unicode_core_test.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.
 
-library utf;
+library utf.unicode_core_test;
+
 import 'package:expect/expect.dart';
-import 'dart:collection';
 
-part '../lib/constants.dart';
-part '../lib/list_range.dart';
-part '../lib/utf16.dart';
+import 'package:utf/utf.dart';
+import 'package:utf/src/util.dart';
 
-main() {
+void main() {
   testCodepointsToUtf16CodeUnits();
   testUtf16bytesToCodepoints();
 }
 
 void testCodepointsToUtf16CodeUnits() {
   // boundary conditions
-  Expect.listEquals([], _codepointsToUtf16CodeUnits([]), "no input");
-  Expect.listEquals([0x0], _codepointsToUtf16CodeUnits([0x0]), "0");
+  Expect.listEquals([], codepointsToUtf16CodeUnits([]), "no input");
+  Expect.listEquals([0x0], codepointsToUtf16CodeUnits([0x0]), "0");
   Expect.listEquals([0xd800, 0xdc00],
-      _codepointsToUtf16CodeUnits([0x10000]), "10000");
+      codepointsToUtf16CodeUnits([0x10000]), "10000");
 
   Expect.listEquals([0xffff],
-      _codepointsToUtf16CodeUnits([0xffff]), "ffff");
+      codepointsToUtf16CodeUnits([0xffff]), "ffff");
   Expect.listEquals([0xdbff, 0xdfff],
-      _codepointsToUtf16CodeUnits([0x10ffff]), "10ffff");
+      codepointsToUtf16CodeUnits([0x10ffff]), "10ffff");
 
   Expect.listEquals([0xd7ff],
-      _codepointsToUtf16CodeUnits([0xd7ff]), "d7ff");
+      codepointsToUtf16CodeUnits([0xd7ff]), "d7ff");
   Expect.listEquals([0xe000],
-      _codepointsToUtf16CodeUnits([0xe000]), "e000");
+      codepointsToUtf16CodeUnits([0xe000]), "e000");
 
   Expect.listEquals([UNICODE_REPLACEMENT_CHARACTER_CODEPOINT],
-      _codepointsToUtf16CodeUnits([0xd800]), "d800");
+      codepointsToUtf16CodeUnits([0xd800]), "d800");
   Expect.listEquals([UNICODE_REPLACEMENT_CHARACTER_CODEPOINT],
-      _codepointsToUtf16CodeUnits([0xdfff]), "dfff");
+      codepointsToUtf16CodeUnits([0xdfff]), "dfff");
 }
 
 void testUtf16bytesToCodepoints() {
   // boundary conditions: First possible values
-  Expect.listEquals([], _utf16CodeUnitsToCodepoints([]), "no input");
-  Expect.listEquals([0x0], _utf16CodeUnitsToCodepoints([0x0]), "0");
+  Expect.listEquals([], utf16CodeUnitsToCodepoints([]), "no input");
+  Expect.listEquals([0x0], utf16CodeUnitsToCodepoints([0x0]), "0");
   Expect.listEquals([0x10000],
-      _utf16CodeUnitsToCodepoints([0xd800, 0xdc00]), "10000");
+      utf16CodeUnitsToCodepoints([0xd800, 0xdc00]), "10000");
 
   // boundary conditions: Last possible sequence of a certain length
   Expect.listEquals([0xffff],
-      _utf16CodeUnitsToCodepoints([0xffff]), "ffff");
+      utf16CodeUnitsToCodepoints([0xffff]), "ffff");
   Expect.listEquals([0x10ffff],
-      _utf16CodeUnitsToCodepoints([0xdbff, 0xdfff]), "10ffff");
+      utf16CodeUnitsToCodepoints([0xdbff, 0xdfff]), "10ffff");
 
   // other boundary conditions
   Expect.listEquals([0xd7ff],
-      _utf16CodeUnitsToCodepoints([0xd7ff]), "d7ff");
+      utf16CodeUnitsToCodepoints([0xd7ff]), "d7ff");
   Expect.listEquals([0xe000],
-      _utf16CodeUnitsToCodepoints([0xe000]), "e000");
+      utf16CodeUnitsToCodepoints([0xe000]), "e000");
 
   // unexpected continuation bytes
   Expect.listEquals([0xfffd],
-      _utf16CodeUnitsToCodepoints([0xdc00]),
+      utf16CodeUnitsToCodepoints([0xdc00]),
       "dc00 first unexpected continuation byte");
   Expect.listEquals([0xfffd],
-      _utf16CodeUnitsToCodepoints([0xdfff]),
+      utf16CodeUnitsToCodepoints([0xdfff]),
       "dfff last unexpected continuation byte");
   Expect.listEquals([0xfffd],
-      _utf16CodeUnitsToCodepoints([0xdc00]),
+      utf16CodeUnitsToCodepoints([0xdc00]),
       "1 unexpected continuation bytes");
   Expect.listEquals([0xfffd, 0xfffd],
-      _utf16CodeUnitsToCodepoints([0xdc00, 0xdc00]),
+      utf16CodeUnitsToCodepoints([0xdc00, 0xdc00]),
       "2 unexpected continuation bytes");
   Expect.listEquals([0xfffd, 0xfffd ,0xfffd],
-      _utf16CodeUnitsToCodepoints([0xdc00, 0xdc00, 0xdc00]),
+      utf16CodeUnitsToCodepoints([0xdc00, 0xdc00, 0xdc00]),
       "3 unexpected continuation bytes");
 
   // incomplete sequences
-  Expect.listEquals([0xfffd], _utf16CodeUnitsToCodepoints([0xd800]),
+  Expect.listEquals([0xfffd], utf16CodeUnitsToCodepoints([0xd800]),
       "d800 last byte missing");
-  Expect.listEquals([0xfffd], _utf16CodeUnitsToCodepoints([0xdbff]),
+  Expect.listEquals([0xfffd], utf16CodeUnitsToCodepoints([0xdbff]),
       "dbff last byte missing");
 
   // concatenation of incomplete sequences
   Expect.listEquals([0xfffd, 0xfffd],
-      _utf16CodeUnitsToCodepoints([0xd800, 0xdbff]),
+      utf16CodeUnitsToCodepoints([0xd800, 0xdbff]),
       "d800 dbff last byte missing");
 
   // impossible bytes
-  Expect.listEquals([0xfffd], _utf16CodeUnitsToCodepoints([0x110000]),
+  Expect.listEquals([0xfffd], utf16CodeUnitsToCodepoints([0x110000]),
       "110000 out of bounds");
 
   // overlong sequences not possible in utf16 (nothing < x10000)
   // illegal code positions d800-dfff not encodable (< x10000)
 }