Update charted to 0.4.8 and roll

packages/intl/lib/src/icu_parser.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.
-
-/**
- * Contains a parser for ICU format plural/gender/select format for localized
- * messages. See extract_to_arb.dart and make_hardcoded_translation.dart.
- */
-library icu_parser;
-
-import 'package:intl/src/intl_message.dart';
-import 'package:petitparser/petitparser.dart';
-
-/**
- * This defines a grammar for ICU MessageFormat syntax. Usage is
- *       new IcuParser.message.parse(<string>).value;
- * The "parse" method will return a Success or Failure object which responds
- * to "value".
- */
-class IcuParser {
-  get openCurly => char("{");
-
-  get closeCurly => char("}");
-  get quotedCurly => (string("'{'") | string("'}'")).map((x) => x[1]);
-
-  get icuEscapedText => quotedCurly | twoSingleQuotes;
-  get curly => (openCurly | closeCurly);
-  get notAllowedInIcuText => curly | char("<");
-  get icuText => notAllowedInIcuText.neg();
-  get notAllowedInNormalText => char("{");
-  get normalText => notAllowedInNormalText.neg();
-  get messageText => (icuEscapedText | icuText).plus().map((x) => x.join());
-  get nonIcuMessageText => normalText.plus().map((x) => x.join());
-  get twoSingleQuotes => string("''").map((x) => "'");
-  get number => digit().plus().flatten().trim().map(int.parse);
-  get id => (letter() & (word() | char("_")).star()).flatten().trim();
-  get comma => char(",").trim();
-
-  /**
-   * Given a list of possible keywords, return a rule that accepts any of them.
-   * e.g., given ["male", "female", "other"], accept any of them.
-   */
-  asKeywords(list) => list.map(string).reduce((a, b) => a | b).flatten().trim();
-
-  get pluralKeyword => asKeywords(
-      ["=0", "=1", "=2", "zero", "one", "two", "few", "many", "other"]);
-  get genderKeyword => asKeywords(["female", "male", "other"]);
-
-  var interiorText = undefined();
-
-  get preface => (openCurly & id & comma).map((values) => values[1]);
-
-  get pluralLiteral => string("plural");
-  get pluralClause => (pluralKeyword & openCurly & interiorText & closeCurly)
-      .trim()
-      .map((result) => [result[0], result[2]]);
-  get plural =>
-      preface & pluralLiteral & comma & pluralClause.plus() & closeCurly;
-  get intlPlural =>
-      plural.map((values) => new Plural.from(values.first, values[3], null));
-
-  get selectLiteral => string("select");
-  get genderClause => (genderKeyword & openCurly & interiorText & closeCurly)
-      .trim()
-      .map((result) => [result[0], result[2]]);
-  get gender =>
-      preface & selectLiteral & comma & genderClause.plus() & closeCurly;
-  get intlGender =>
-      gender.map((values) => new Gender.from(values.first, values[3], null));
-  get selectClause =>
-      (id & openCurly & interiorText & closeCurly).map((x) => [x.first, x[2]]);
-  get generalSelect =>
-      preface & selectLiteral & comma & selectClause.plus() & closeCurly;
-  get intlSelect => generalSelect
-      .map((values) => new Select.from(values.first, values[3], null));
-
-  get pluralOrGenderOrSelect => intlPlural | intlGender | intlSelect;
-
-  get contents => pluralOrGenderOrSelect | parameter | messageText;
-  get simpleText => (nonIcuMessageText | parameter | openCurly).plus();
-  get empty => epsilon().map((_) => '');
-
-  get parameter => (openCurly & id & closeCurly)
-      .map((param) => new VariableSubstitution.named(param[1], null));
-
-  /**
-   * The primary entry point for parsing. Accepts a string and produces
-   * a parsed representation of it as a Message.
-   */
-  get message => (pluralOrGenderOrSelect | empty)
-      .map((chunk) => Message.from(chunk, null));
-
-  /**
-   * Represents an ordinary message, i.e. not a plural/gender/select, although
-   * it may have parameters.
-   */
-  get nonIcuMessage =>
-      (simpleText | empty).map((chunk) => Message.from(chunk, null));
-
-  get stuff => (pluralOrGenderOrSelect | empty)
-      .map((chunk) => Message.from(chunk, null));
-
-  IcuParser() {
-    // There is a cycle here, so we need the explicit set to avoid
-    // infinite recursion.
-    interiorText.set(contents.plus() | empty);
-  }
-}