Chromium Code Reviews| Index: src/extensions/experimental/language-matcher.h |
| =================================================================== |
| --- src/extensions/experimental/language-matcher.h (revision 0) |
| +++ src/extensions/experimental/language-matcher.h (revision 0) |
| @@ -0,0 +1,94 @@ |
| +// Copyright 2011 the V8 project authors. All rights reserved. |
| +// Redistribution and use in source and binary forms, with or without |
| +// modification, are permitted provided that the following conditions are |
| +// met: |
| +// |
| +// * Redistributions of source code must retain the above copyright |
| +// notice, this list of conditions and the following disclaimer. |
| +// * Redistributions in binary form must reproduce the above |
| +// copyright notice, this list of conditions and the following |
| +// disclaimer in the documentation and/or other materials provided |
| +// with the distribution. |
| +// * Neither the name of Google Inc. nor the names of its |
| +// contributors may be used to endorse or promote products derived |
| +// from this software without specific prior written permission. |
| +// |
| +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| + |
| +#ifndef V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_ |
| +#define V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_ |
| + |
| +#include <v8.h> |
| + |
| +#include "unicode/uloc.h" |
| + |
| +namespace v8 { |
| +namespace internal { |
| + |
| +struct LocaleIDMatch { |
| + LocaleIDMatch(); |
| + |
| + LocaleIDMatch& operator=(const LocaleIDMatch& rhs); |
| + |
| + // Bcp47 locale id - "de-Latn-DE-u-co-phonebk". |
| + char bcp47_locale[ULOC_FULLNAME_CAPACITY]; |
|
jungshik at Google
2011/05/02 19:57:23
optional: bcp47_id and icu_id seem better.
Nebojša Ćirić
2011/05/02 22:44:01
Done.
|
| + |
| + // ICU locale id - "de_Latn_DE@collation=phonebk". |
| + char icu_locale[ULOC_FULLNAME_CAPACITY]; |
| + |
| + // Rank for this locale when compared to others. |
|
jungshik at Google
2011/05/02 19:57:23
Isn't this score?
Nebojša Ćirić
2011/05/02 22:44:01
Done.
|
| + int rank; |
| +}; |
| + |
| +class LanguageMatcher { |
| + public: |
| + // Default locale. |
| + static const char* const kDefaultLocale; |
| + |
| + // Finds best supported locale for a given a list of locale identifiers. |
| + // It preserves the extension for the locale id. |
| + static void GetBestMatchForPriorityList( |
| + v8::Handle<v8::Array> locale_list, LocaleIDMatch* result); |
| + |
| + // Finds best supported locale for a single locale identifier. |
| + // It preserves the extension for the locale id. |
| + static void GetBestMatchForString( |
| + v8::Handle<v8::String> locale_id, LocaleIDMatch* result); |
| + |
| + private: |
| + // If langauge subtags match add this amount to the rank. |
| + static const unsigned int kLanguageDistance; |
|
jungshik at Google
2011/05/02 19:57:23
I think what you meant is 'Weight' rather than 'Di
Nebojša Ćirić
2011/05/02 22:44:01
Done.
|
| + |
| + // If script subtags match add this amount to the rank. |
| + static const unsigned int kScriptDistance; |
| + |
| + // If region subtags match add this amount to the rank. |
| + static const unsigned int kRegionDistance; |
| + |
| + // LocaleID match rank has to be over this number to accept the match. |
| + static const unsigned int kThreshold; |
| + |
| + // For breaking ties in priority queue. |
| + static const unsigned int kPositionBonus; |
| + |
| + LanguageMatcher(); |
| + |
| + // Compares locale_id to the supported list of locales and returns best |
| + // match. |
| + static void CompareToSupportedLocaleIDList(v8::Handle<v8::String> locale_id, |
| + LocaleIDMatch* result); |
| +}; |
| + |
| +} } // namespace v8::internal |
| + |
| +#endif // V8_EXTENSIONS_EXPERIMENTAL_LANGUAGE_MATCHER_H_ |
| Property changes on: src/extensions/experimental/language-matcher.h |
| ___________________________________________________________________ |
| Added: svn:eol-style |
| + LF |