office-gobmx/include/i18nlangtag/mslangid.hxx
Eike Rathke fed7a57fcd more flexible language tag override mechanism
* allow overriding higher level lll-Ssss-CC with lower level lll-CC for
  known MS-LangID mappings that use tags with suppress-script
* internal override "canonicalization", e.g. ca-XV => ca-ES-valencia

Change-Id: I067d7515fb9144a896697617ad1b079e294f1ced
2013-10-25 17:58:11 +02:00

318 lines
12 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
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* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
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* ownership. The ASF licenses this file to you under the Apache
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* except in compliance with the License. You may obtain a copy of
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*/
#ifndef INCLUDED_I18NLANGTAG_MSLANGID_HXX
#define INCLUDED_I18NLANGTAG_MSLANGID_HXX
#include <sal/config.h>
#include "i18nlangtag/i18nlangtagdllapi.h"
#include "i18nlangtag/lang.h"
#include <com/sun/star/lang/Locale.hpp>
#include <vector>
struct IsoLanguageCountryEntry;
struct IsoLanguageScriptCountryEntry;
/** Methods related to Microsoft language IDs. For details about MS-LANGIDs
please see lang.h */
class I18NLANGTAG_DLLPUBLIC MsLangId
{
public:
/// Create a LangID from a primary and a sublanguage.
static inline LanguageType makeLangID( LanguageType nSubLangId, LanguageType nPriLangId)
{
return (nSubLangId << 10) | nPriLangId;
}
/// Get the primary language of a LangID.
static inline LanguageType getPrimaryLanguage( LanguageType nLangID)
{
return nLangID & LANGUAGE_MASK_PRIMARY;
}
/// Get the sublanguage of a LangID.
static inline LanguageType getSubLanguage( LanguageType nLangID)
{
return (nLangID & ~LANGUAGE_MASK_PRIMARY) >> 10;
}
/** Language/locale of category LC_CTYPE (on Unix, else the system
language).
Evaluation order: LC_ALL, LC_CTYPE, LANG */
static LanguageType getSystemLanguage();
/** Language/locale of category LC_MESSAGES (on Unix, else same as
GetSystemLanguage()).
Evaluation order: LANGUAGE, LC_ALL, LC_MESSAGES, LANG */
static LanguageType getSystemUILanguage();
/** @short: A proper language/locale if the nLang parameter designates some
special value.
@descr: NOTE: The "system" values may be overridden by the
application's configuration.
@returns
case LANGUAGE_PROCESS_OR_USER_DEFAULT : configured or system language
case LANGUAGE_SYSTEM_DEFAULT : configured or system language
case LANGUAGE_SYSTEM : configured or system language
case LANGUAGE_HID_HUMAN_INTERFACE_DEVICE : configured or system UI language
case LANGUAGE_DONTKNOW : LANGUAGE_ENGLISH_US
else: nLang
In case the configured language is LANGUAGE_SYSTEM, which is also
the initial default, the system language is obtained. In case the
configured or resulting system language is LANGUAGE_DONTKNOW,
LANGUAGE_ENGLISH_US is returned instead.
*/
static LanguageType getRealLanguage( LanguageType nLang );
// TODO: refactor to LanguageTag? Used only in
// i18npool/source/localedata/localedata.cxx
/** Get fall-back Locale for Locale with handling of an empty language name
designating the SYSTEM language. Returns the same Locale if an exact
match was found.
*/
static ::com::sun::star::lang::Locale getFallbackLocale(
const ::com::sun::star::lang::Locale & rLocale );
// TODO: refactor to LanguageTag, used only in
// i18npool/source/isolang/inunx.cxx to convert Unix locale string
static LanguageType convertUnxByteStringToLanguage( const OString& rString );
static LanguageType resolveSystemLanguageByScriptType( LanguageType nLang, sal_Int16 nType );
/** Whether locale has a Right-To-Left orientation. */
static bool isRightToLeft( LanguageType nLang );
/** Whether locale is a CJK locale */
static bool isCJK( LanguageType nLang );
/** Whether locale is a chinese locale */
static bool isChinese( LanguageType nLang );
/** Whether locale is a simplified chinese locale */
static bool isSimplifiedChinese( LanguageType nLang );
/** Whether locale is a traditional chinese locale */
static bool isTraditionalChinese( LanguageType nLang );
/** Whether locale is a korean locale */
static bool isKorean( LanguageType nLang );
/** Whether locale is a simplified chinese locale */
static bool isSimplifiedChinese( const ::com::sun::star::lang::Locale & rLocale );
/** Whether locale is a traditional chinese locale */
static bool isTraditionalChinese( const ::com::sun::star::lang::Locale & rLocale );
/** Whether locale is one where family name comes first, e.g. Japan, Hungary, Samoa */
static bool isFamilyNameFirst( LanguageType nLang );
/** Whether there are "forbidden characters at start or end of line" in
this locale. CJK locales.
@see offapi/com/sun/star/i18n/ForbiddenCharacters.idl
*/
static bool hasForbiddenCharacters( LanguageType nLang );
/** Whether locale needs input sequence checking. CTL locales. */
static bool needsSequenceChecking( LanguageType nLang );
/** Get ::com::sun::star::i18n::ScriptType of locale. */
static sal_Int16 getScriptType( LanguageType nLang );
/** Whether locale is "Western" but not Latin script, e.g. Cyrillic or Greek. */
static bool isNonLatinWestern( LanguageType nLang );
/** Map an obsolete user defined LANGID (see lang.h
LANGUAGE_OBSOLETE_USER_...) to the new value defined by MS in the
meantime.
Also used to map UI localizations using reserved ISO codes to something
"official" but not identical in order to not pollute documents with
invalid ISO codes.
@param bUserInterfaceSelection
If TRUE, don't replace such UI-only locale. Only use for
Tools->Options->LanguageSettings->UserInterface listbox.
If FALSE, do replace.
*/
static LanguageType getReplacementForObsoleteLanguage( LanguageType nLang,
bool bUserInterfaceSelection = false );
/** @ATTENTION: these are _ONLY_ to be called by the application's
configuration! */
static void setConfiguredSystemLanguage( LanguageType nLang );
static void setConfiguredSystemUILanguage( LanguageType nLang );
static void setConfiguredWesternFallback( LanguageType nLang );
static void setConfiguredComplexFallback( LanguageType nLang );
static void setConfiguredAsianFallback( LanguageType nLang );
// ---------------------------------------------------------------------------
struct LanguagetagMapping
{
OUString maBcp47;
LanguageType mnLang;
LanguagetagMapping( const OUString & rBcp47, LanguageType nLang ) : maBcp47(rBcp47), mnLang(nLang) {}
};
/** @internal - Obtain a list of known locales (i.e. those that have a
defined mapping between MS-LangID and ISO codes or tags) as BCP 47
language tag strings.
*/
static ::std::vector< LanguagetagMapping > getDefinedLanguagetags();
// ---------------------------------------------------------------------------
/** Encapsulated conversion methods used by LanguageTag and conversions,
not to be used by anything else.
*/
class Conversion
{
private:
friend class LanguageTag;
friend class LanguageTagImpl;
friend ::com::sun::star::lang::Locale MsLangId::getFallbackLocale(
const ::com::sun::star::lang::Locale & rLocale );
friend LanguageType MsLangId::convertUnxByteStringToLanguage(
const OString& rString );
/** Convert a Locale to a LanguageType with handling of an empty
language name designating LANGUAGE_SYSTEM.
*/
I18NLANGTAG_DLLPRIVATE static LanguageType convertLocaleToLanguage(
const ::com::sun::star::lang::Locale & rLocale );
/** Used by convertLocaleToLanguage(Locale) */
I18NLANGTAG_DLLPRIVATE static LanguageType convertLocaleToLanguageImpl(
const ::com::sun::star::lang::Locale & rLocale );
/** Convert x-... privateuse, used by convertLocaleToLanguageImpl(Locale) */
I18NLANGTAG_DLLPRIVATE static LanguageType convertPrivateUseToLanguage(
const OUString& rPriv );
/** Used by LanguageTag::canonicalize() */
I18NLANGTAG_DLLPRIVATE static ::com::sun::star::lang::Locale getOverride(
const ::com::sun::star::lang::Locale & rLocale );
/** Used by convertLocaleToLanguage(Locale) */
I18NLANGTAG_DLLPRIVATE static LanguageType convertIsoNamesToLanguage(
const OUString& rLang, const OUString& rCountry );
/** Used by convertUnxByteStringToLanguage(OString) */
I18NLANGTAG_DLLPRIVATE static LanguageType convertIsoNamesToLanguage(
const OString& rLang, const OString& rCountry );
/** Used by lookupFallbackLocale(Locale) */
I18NLANGTAG_DLLPRIVATE static com::sun::star::lang::Locale getLocale(
const IsoLanguageCountryEntry * pEntry );
/** Used by lookupFallbackLocale(Locale) */
I18NLANGTAG_DLLPRIVATE static com::sun::star::lang::Locale getLocale(
const IsoLanguageScriptCountryEntry * pEntry );
/** Convert a LanguageType to a Locale.
@param bResolveSystem
If bResolveSystem==true, a LANGUAGE_SYSTEM is resolved.
If bResolveSystem==false, a LANGUAGE_SYSTEM results in an
empty Locale.
*/
I18NLANGTAG_DLLPRIVATE static ::com::sun::star::lang::Locale convertLanguageToLocale(
LanguageType nLang, bool bResolveSystem );
/** Used by convertLanguageToLocale(LanguageType,bool) and
getLocale(IsoLanguageCountryEntry*) and
getLocale(IsoLanguageScriptCountryEntry)
@param bIgnoreOverride
If bIgnoreOverride==true, a matching entry is used even if
mnOverride is set, for conversion to an even outdated tag.
If bIgnoreOverride==false, a matching entry is skipped if
mnOverride is set and instead the override is followed.
@return rLocale set to mapped values, unchanged if no mapping was
found. E.g. pass empty Locale to obtain empty SYSTEM locale
for that case.
*/
I18NLANGTAG_DLLPRIVATE static void convertLanguageToLocaleImpl(
LanguageType nLang, ::com::sun::star::lang::Locale & rLocale, bool bIgnoreOverride );
I18NLANGTAG_DLLPRIVATE static ::com::sun::star::lang::Locale lookupFallbackLocale(
const ::com::sun::star::lang::Locale & rLocale );
};
private:
static LanguageType nConfiguredSystemLanguage;
static LanguageType nConfiguredSystemUILanguage;
static LanguageType nConfiguredWesternFallback;
static LanguageType nConfiguredAsianFallback;
static LanguageType nConfiguredComplexFallback;
static LanguageType getPlatformSystemLanguage();
static LanguageType getPlatformSystemUILanguage();
// Substitute LANGUAGE_SYSTEM for LANGUAGE_SYSTEM_DEFAULT and
// LANGUAGE_PROCESS_OR_USER_DEFAULT, other values aren't touched.
I18NLANGTAG_DLLPRIVATE static inline LanguageType simplifySystemLanguages( LanguageType nLang );
};
// static
inline LanguageType MsLangId::getSystemLanguage()
{
return getPlatformSystemLanguage();
}
// static
inline LanguageType MsLangId::getSystemUILanguage()
{
return getPlatformSystemUILanguage();
}
#endif // INCLUDED_I18NLANGTAG_MSLANGID_HXX
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