Update charted to 0.4.8 and roll

packages/intl/bin/extract_to_arb.dart

Index: packages/intl/bin/extract_to_arb.dart
diff --git a/packages/intl/bin/extract_to_arb.dart b/packages/intl/bin/extract_to_arb.dart
deleted file mode 100644
index a79023b880755a0c63b2ebaa451d7b42d36e381f..0000000000000000000000000000000000000000
--- a/packages/intl/bin/extract_to_arb.dart
+++ /dev/null
@@ -1,134 +0,0 @@
-#!/usr/bin/env dart
-// Copyright (c) 2014, 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.
-
-/**
- * This script uses the extract_messages.dart library to find the Intl.message
- * calls in the target dart files and produces ARB format output. See
- * https://code.google.com/p/arb/wiki/ApplicationResourceBundleSpecification
- */
-library extract_to_arb;
-
-import 'dart:convert';
-import 'dart:io';
-import 'package:intl/extract_messages.dart';
-import 'package:path/path.dart' as path;
-import 'package:intl/src/intl_message.dart';
-import 'package:args/args.dart';
-
-main(List<String> args) {
-  var targetDir;
-  var parser = new ArgParser();
-  parser.addFlag("suppress-warnings",
-      defaultsTo: false,
-      callback: (x) => suppressWarnings = x,
-      help: 'Suppress printing of warnings.');
-  parser.addFlag("warnings-are-errors",
-      defaultsTo: false,
-      callback: (x) => warningsAreErrors = x,
-      help: 'Treat all warnings as errors, stop processing ');
-  parser.addFlag("embedded-plurals",
-      defaultsTo: true,
-      callback: (x) => allowEmbeddedPluralsAndGenders = x,
-      help: 'Allow plurals and genders to be embedded as part of a larger '
-      'string, otherwise they must be at the top level.');
-
-  parser.addOption("output-dir",
-      defaultsTo: '.',
-      callback: (value) => targetDir = value,
-      help: 'Specify the output directory.');
-  parser.parse(args);
-  if (args.length == 0) {
-    print('Accepts Dart files and produces intl_messages.json');
-    print('Usage: extract_to_arb [options] [files.dart]');
-    print(parser.usage);
-    exit(0);
-  }
-  var allMessages = {};
-  for (var arg in args.where((x) => x.contains(".dart"))) {
-    var messages = parseFile(new File(arg));
-    messages.forEach((k, v) => allMessages.addAll(toARB(v)));
-  }
-  var file = new File(path.join(targetDir, 'intl_messages.arb'));
-  file.writeAsStringSync(JSON.encode(allMessages));
-  if (hasWarnings && warningsAreErrors) {
-    exit(1);
-  }
-}
-
-/**
- * This is a placeholder for transforming a parameter substitution from
- * the translation file format into a Dart interpolation. In our case we
- * store it to the file in Dart interpolation syntax, so the transformation
- * is trivial.
- */
-String leaveTheInterpolationsInDartForm(MainMessage msg, chunk) {
-  if (chunk is String) return chunk;
-  if (chunk is int) return "\$${msg.arguments[chunk]}";
-  return chunk.toCode();
-}
-
-/**
- * Convert the [MainMessage] to a trivial JSON format.
- */
-Map toARB(MainMessage message) {
-  if (message.messagePieces.isEmpty) return null;
-  var out = {};
-  out[message.name] = icuForm(message);
-  out["@${message.name}"] = arbMetadata(message);
-  return out;
-}
-
-Map arbMetadata(MainMessage message) {
-  var out = {};
-  var desc = message.description;
-  if (desc != null) {
-    out["description"] = desc;
-  }
-  out["type"] = "text";
-  var placeholders = {};
-  for (var arg in message.arguments) {
-    addArgumentFor(message, arg, placeholders);
-  }
-  out["placeholders"] = placeholders;
-  return out;
-}
-
-void addArgumentFor(MainMessage message, String arg, Map result) {
-  var extraInfo = {};
-  if (message.examples != null && message.examples[arg] != null) {
-    extraInfo["example"] = message.examples[arg];
-  }
-  result[arg] = extraInfo;
-}
-
-/**
- * Return a version of the message string with
- * with ICU parameters "{variable}" rather than Dart interpolations "$variable".
- */
-String icuForm(MainMessage message) =>
-    message.expanded(turnInterpolationIntoICUForm);
-
-String turnInterpolationIntoICUForm(Message message, chunk,
-    {bool shouldEscapeICU: false}) {
-  if (chunk is String) {
-    return shouldEscapeICU ? escape(chunk) : chunk;
-  }
-  if (chunk is int && chunk >= 0 && chunk < message.arguments.length) {
-    return "{${message.arguments[chunk]}}";
-  }
-  if (chunk is SubMessage) {
-    return chunk.expanded((message, chunk) =>
-        turnInterpolationIntoICUForm(message, chunk, shouldEscapeICU: true));
-  }
-  if (chunk is Message) {
-    return chunk.expanded((message, chunk) => turnInterpolationIntoICUForm(
-        message, chunk, shouldEscapeICU: shouldEscapeICU));
-  }
-  throw new FormatException("Illegal interpolation: $chunk");
-}
-
-String escape(String s) {
-  return s.replaceAll("'", "''").replaceAll("{", "'{'").replaceAll("}", "'}'");
-}