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// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_
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#define V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_
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#include "unicode/uloc.h"
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struct LocaleIDMatch {
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LocaleIDMatch& operator=(const LocaleIDMatch& rhs);
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// Bcp47 locale id - "de-Latn-DE-u-co-phonebk".
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char bcp47_id[ULOC_FULLNAME_CAPACITY];
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// ICU locale id - "de_Latn_DE@collation=phonebk".
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char icu_id[ULOC_FULLNAME_CAPACITY];
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// Score for this locale.
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class LanguageMatcher {
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static const char* const kDefaultLocale;
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// Finds best supported locale for a given a list of locale identifiers.
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// It preserves the extension for the locale id.
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static void GetBestMatchForPriorityList(
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v8::Handle<v8::Array> locale_list, LocaleIDMatch* result);
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// Finds best supported locale for a single locale identifier.
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// It preserves the extension for the locale id.
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static void GetBestMatchForString(
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v8::Handle<v8::String> locale_id, LocaleIDMatch* result);
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// If langauge subtags match add this amount to the score.
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static const unsigned int kLanguageWeight;
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// If script subtags match add this amount to the score.
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static const unsigned int kScriptWeight;
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// If region subtags match add this amount to the score.
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static const unsigned int kRegionWeight;
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// LocaleID match score has to be over this number to accept the match.
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static const int kThreshold;
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// For breaking ties in priority queue.
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static const unsigned int kPositionBonus;
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// Compares locale_id to the supported list of locales and returns best
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// Returns false if it fails to convert locale id from ICU to BCP47 format.
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static bool CompareToSupportedLocaleIDList(v8::Handle<v8::String> locale_id,
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LocaleIDMatch* result);
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} // namespace v8_i18n
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#endif // V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_
added
removed
src/extensions/experimental/language-matcher.h
