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// Copyright (c) 2017, 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.
/// API to allow setting Date/Time formatting in a custom way.
/// It does not actually provide any data - that's left to the user of the API.
import "date_symbols.dart";
import "src/date_format_internal.dart";
/// This should be called for at least one [locale] before any date
/// formatting methods are called.
/// It sets up the lookup for date information. The [symbols] argument should
/// contain a populated [DateSymbols], and [patterns] should contain a Map for
/// the same locale from skeletons to the specific format strings. For examples,
/// see date_time_patterns.dart.
/// If data for this locale has already been initialized it will be overwritten.
void initializeDateFormattingCustom(
{String locale, DateSymbols symbols, Map<String, String> patterns}) {
if (symbols == null)
throw new ArgumentError("Missing DateTime formatting symbols");
if (patterns == null)
throw new ArgumentError("Missing DateTime formatting patterns");
if (locale != symbols.NAME)
throw new ArgumentError.value(
[locale, symbols.NAME], "Locale does not match symbols.NAME");
dateTimeSymbols[symbols.NAME] = symbols;
dateTimePatterns[symbols.NAME] = patterns;
Map<String, DateSymbols> _emptySymbols() => {};
Map<String, Map<String, String>> _emptyPatterns() => {};