mirror of https://github.com/acidanthera/audk.git
123 lines
5.0 KiB
C
123 lines
5.0 KiB
C
/** @file
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Provides functions for language conversion between ISO 639-2 and RFC 4646 styles.
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __LANGUAGE_LIB__
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#define __LANGUAGE_LIB__
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/**
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Converts an ISO 639-2 language code to an RFC 4646 language code.
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If the ISO 639-2 language code has a corresponding ISO 639-1 code, then that ISO 639-1
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code is returned in the out parameter. Else the original ISO 639-2 code is returned. The returned RFC 4646
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language code is composed of only a primary language subtag.
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If Iso639Language is NULL, then ASSERT().
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If Rfc4646Language is NULL, then ASSERT().
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@param[out] Rfc4646Language Pointers to a buffer large enough for an ASCII string
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representing an RFC 4646 language code containing only
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either a ISO 639-1 or ISO 639-2 primary language subtag.
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This string is Null-terminated.
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@param[in] Iso639Language The pointer to a 3-letter ASCII string that represents
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an ISO 639-2 language code. This string is not required
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to be Null-terminated.
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@retval TRUE The ISO 639-2 language code was converted to an ISO 639-1 code.
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@retval FALSE The language code does not have a corresponding ISO 639-1 code.
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**/
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BOOLEAN
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EFIAPI
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ConvertIso639ToRfc4646 (
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OUT CHAR8 *Rfc4646Language,
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IN CONST CHAR8 *Iso639Language
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);
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/**
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Converts an RFC 4646 language code to an ISO 639-2 language code. The primary language
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subtag of the RFC 4646 code must be either an ISO 639-1 or 639-2 code. If the primary
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language subtag is an ISO 639-1 code, then it is converted to its corresponding ISO 639-2
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code (T code if applies). Else the ISO 639-2 code is returned.
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If Rfc4646Language is NULL, then ASSERT().
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If Iso639Language is NULL, then ASSERT().
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@param[out] Iso639Language Pointers to a buffer large enough for a 3-letter ASCII string
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representing an ISO 639-2 language code. The string
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is Null-terminated.
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@param[in] Rfc4646Language The pointer to a RFC 4646 language code string.
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This string is terminated
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by a NULL or a ';' character.
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@retval TRUE Language code converted successfully.
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@retval FALSE The RFC 4646 language code is invalid or unsupported.
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**/
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BOOLEAN
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EFIAPI
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ConvertRfc4646ToIso639 (
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OUT CHAR8 *Iso639Language,
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IN CONST CHAR8 *Rfc4646Language
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);
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/**
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Converts ISO 639-2 language codes to RFC 4646 codes and returns the converted codes.
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Caller is responsible for freeing the allocated buffer.
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If Iso639Languages is NULL, then ASSERT.
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@param[in] Iso639Languages Pointers to Null-terminated ISO 639-2 language code strings containing
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one or more ISO 639-2 3-letter language codes.
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@retval NULL Invalid ISO 639-2 language code found.
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@retval NULL Out of memory.
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@return The pointer to the allocate buffer containing the
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Null-terminated converted language codes string.
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This string is composed of one or more RFC4646
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language codes each of which has only
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ISO 639-1 2-letter primary language subtag.
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**/
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CHAR8 *
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EFIAPI
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ConvertLanguagesIso639ToRfc4646 (
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IN CONST CHAR8 *Iso639Languages
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);
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/**
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Converts RFC 4646 language codes to ISO 639-2 codes and returns the converted codes.
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The primary language subtag of the RFC 4646 code must be either an ISO 639-1 or 639-2 code.
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Caller is responsible for freeing the allocated buffer.
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If Rfc4646Languages is NULL, then ASSERT.
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@param[in] Rfc4646Languages Pointers to a Null-terminated RFC 4646 language codes
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string containing one or more RFC 4646 language codes.
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@retval NULL Invalid or unsupported RFC 4646 language code found.
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@retval NULL Out of memory.
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@return The pointer to the allocate buffer containing the
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Null-terminated converted language codes string.
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This string is composed of one or more ISO 639-2
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language codes.
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**/
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CHAR8 *
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EFIAPI
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ConvertLanguagesRfc4646ToIso639 (
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IN CONST CHAR8 *Rfc4646Languages
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);
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#endif
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