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91 lines
4.5 KiB
C
91 lines
4.5 KiB
C
/*
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* i18n.h: Internationalization
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: i18n.h 1.24 2007/08/24 13:35:18 kls Exp $
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*/
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#ifndef __I18N_H
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#define __I18N_H
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#include <stdio.h>
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#include "tools.h"
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typedef const char *tI18nPhrase[22]; ///< obsolete - switch to 'gettext'!
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#define I18N_DEFAULT_LOCALE "en_US"
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#define I18N_MAX_LOCALE_LEN 16 // for buffers that hold en_US etc.
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#define I18N_MAX_LANGUAGES 256 // for buffers that hold all available languages
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void I18nInitialize(void);
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///< Detects all available locales and loads the language names and codes.
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void I18nRegister(const char *Plugin);
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///< Registers the named plugin, so that it can use internationalized texts.
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void I18nSetLocale(const char *Locale);
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///< Sets the current locale to Locale. The default locale is "en_US".
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///< If no such locale has been found in the call to I18nInitialize(),
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///< nothing happens.
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int I18nCurrentLanguage(void);
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///< Returns the index of the current language. This number stays the
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///< same for any given language while the program is running, but may
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///< be different when the program is run again (for instance because
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///< a locale has been added or removed). The default locale ("en_US")
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///< always has a zero index.
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void I18nSetLanguage(int Language);
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///< Sets the current language index to Language. If Language is outside
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///< the range of available languages, nothing happens.
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int I18nNumLanguagesWithLocale(void);
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///< Returns the number of entries in the list returned by I18nLanguages()
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///< that actually have a locale.
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const cStringList *I18nLanguages(void);
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///< Returns the list of available languages. Values returned by
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///< I18nCurrentLanguage() are indexes into this list.
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///< Only the first I18nNumLanguagesWithLocale() entries in this list
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///< have an actual locale installed. The rest are just dummy entries
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///< to allow having three letter language codes for other languages
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///< that have no actual locale on this system.
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const char *I18nTranslate(const char *s, const char *Plugin = NULL) __attribute_format_arg__(1);
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///< Translates the given string (with optional Plugin context) into
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///< the current language. If no translation is available, the original
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///< string will be returned.
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const char *I18nLocale(int Language);
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///< Returns the locale code of the given Language (which is an index as
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///< returned by I18nCurrentLanguage()). If Language is outside the range
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///< of available languages, NULL is returned.
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const char *I18nLanguageCode(int Language);
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///< Returns the three letter language code of the given Language (which
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///< is an index as returned by I18nCurrentLanguage()). If Language is
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///< outside the range of available languages, NULL is returned.
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///< The returned string may consist of several alternative three letter
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///< language codes, separated by commas (as in "deu,ger").
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int I18nLanguageIndex(const char *Code);
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///< Returns the index of the language with the given three letter
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///< language Code. If no suitable language is found, -1 is returned.
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const char *I18nNormalizeLanguageCode(const char *Code);
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///< Returns a 3 letter language code that may not be zero terminated.
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///< If no normalized language code can be found, the given Code is returned.
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///< Make sure at most 3 characters are copied when using it!
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bool I18nIsPreferredLanguage(int *PreferredLanguages, const char *LanguageCode, int &OldPreference, int *Position = NULL);
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///< Checks the given LanguageCode (which may be something like "eng" or "eng+deu")
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///< against the PreferredLanguages and returns true if one is found that has an index
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///< smaller than OldPreference (which should be initialized to -1 before the first
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///< call to this function in a sequence of checks). If LanguageCode is not any of
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///< the PreferredLanguages, and OldPreference is less than zero, OldPreference will
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///< be set to a value higher than the highest language index. If Position is given,
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///< it will return 0 if this was a single language code (like "eng"), 1 if it was
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///< the first of two language codes (like "eng" out of "eng+deu") and 2 if it was
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///< the second one (like "deu" out of ""eng+deu").
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#ifdef PLUGIN_NAME_I18N
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#define tr(s) I18nTranslate(s, "vdr-" PLUGIN_NAME_I18N)
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#define trVDR(s) I18nTranslate(s) // to use a text that's in the VDR core's translation file
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#else
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#define tr(s) I18nTranslate(s)
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#endif
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#define trNOOP(s) (s)
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#endif //__I18N_H
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