+++ /dev/null
-/** @file\r
- Language Library implementation that provides functions for language conversion\r
- between ISO 639-2 and RFC 4646 language codes.\r
-\r
- Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>\r
- This program and the accompanying materials\r
- are licensed and made available under the terms and conditions of the BSD License\r
- which accompanies this distribution. The full text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\r
-\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
-\r
-**/\r
-\r
-#include <Uefi.h>\r
-\r
-#include <Library/LanguageLib.h>\r
-\r
-#include <Library/BaseLib.h>\r
-#include <Library/DebugLib.h>\r
-#include <Library/MemoryAllocationLib.h>\r
-\r
-//\r
-// Lookup table of ISO639-2 3 character language codes to ISO 639-1 2 character language codes\r
-// Each entry is 5 CHAR8 values long. The first 3 CHAR8 values are the ISO 639-2 code.\r
-// The last 2 CHAR8 values are the ISO 639-1 code.\r
-//\r
-// ISO 639-2 B codes and deprecated ISO 639-1 codes are not supported.\r
-//\r
-// Commonly used language codes such as English and French are put in the front of the table for quick match.\r
-//\r
-GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mIso639ToRfc4646ConversionTable[] =\r
-"\\r
-engen\\r
-frafr\\r
-aaraa\\r
-abkab\\r
-aveae\\r
-afraf\\r
-akaak\\r
-amham\\r
-argan\\r
-araar\\r
-asmas\\r
-avaav\\r
-aymay\\r
-azeaz\\r
-bakba\\r
-belbe\\r
-bulbg\\r
-bihbh\\r
-bisbi\\r
-bambm\\r
-benbn\\r
-bodbo\\r
-brebr\\r
-bosbs\\r
-catca\\r
-chece\\r
-chach\\r
-cosco\\r
-crecr\\r
-cescs\\r
-chucu\\r
-chvcv\\r
-cymcy\\r
-danda\\r
-deude\\r
-divdv\\r
-dzodz\\r
-eweee\\r
-ellel\\r
-epoeo\\r
-spaes\\r
-estet\\r
-euseu\\r
-fasfa\\r
-fulff\\r
-finfi\\r
-fijfj\\r
-faofo\\r
-fryfy\\r
-glega\\r
-glagd\\r
-glggl\\r
-grngn\\r
-gujgu\\r
-glvgv\\r
-hauha\\r
-hebhe\\r
-hinhi\\r
-hmoho\\r
-hrvhr\\r
-hatht\\r
-hunhu\\r
-hyehy\\r
-herhz\\r
-inaia\\r
-indid\\r
-ileie\\r
-iboig\\r
-iiiii\\r
-ipkik\\r
-idoio\\r
-islis\\r
-itait\\r
-ikuiu\\r
-jpnja\\r
-javjv\\r
-katka\\r
-konkg\\r
-kikki\\r
-kuakj\\r
-kazkk\\r
-kalkl\\r
-khmkm\\r
-kankn\\r
-korko\\r
-kaukr\\r
-kasks\\r
-kurku\\r
-komkv\\r
-corkw\\r
-kirky\\r
-latla\\r
-ltzlb\\r
-luglg\\r
-limli\\r
-linln\\r
-laolo\\r
-litlt\\r
-lublu\\r
-lavlv\\r
-mlgmg\\r
-mahmh\\r
-mrimi\\r
-mkdmk\\r
-malml\\r
-monmn\\r
-marmr\\r
-msams\\r
-mltmt\\r
-myamy\\r
-nauna\\r
-nobnb\\r
-ndend\\r
-nepne\\r
-ndong\\r
-nldnl\\r
-nnonn\\r
-norno\\r
-nblnr\\r
-navnv\\r
-nyany\\r
-ocioc\\r
-ojioj\\r
-ormom\\r
-orior\\r
-ossos\\r
-panpa\\r
-plipi\\r
-polpl\\r
-pusps\\r
-porpt\\r
-quequ\\r
-rohrm\\r
-runrn\\r
-ronro\\r
-rusru\\r
-kinrw\\r
-sansa\\r
-srdsc\\r
-sndsd\\r
-smese\\r
-sagsg\\r
-sinsi\\r
-slksk\\r
-slvsl\\r
-smosm\\r
-snasn\\r
-somso\\r
-sqisq\\r
-srpsr\\r
-sswss\\r
-sotst\\r
-sunsu\\r
-swesv\\r
-swasw\\r
-tamta\\r
-telte\\r
-tgktg\\r
-thath\\r
-tirti\\r
-tuktk\\r
-tgltl\\r
-tsntn\\r
-tonto\\r
-turtr\\r
-tsots\\r
-tattt\\r
-twitw\\r
-tahty\\r
-uigug\\r
-ukruk\\r
-urdur\\r
-uzbuz\\r
-venve\\r
-vievi\\r
-volvo\\r
-wlnwa\\r
-wolwo\\r
-xhoxh\\r
-yidyi\\r
-yoryo\\r
-zhaza\\r
-zhozh\\r
-zulzu\\r
-";\r
-\r
-/**\r
- Converts upper case ASCII characters in an ASCII string to lower case ASCII \r
- characters in an ASCII string.\r
-\r
- If a an ASCII character in Source is in the range 'A'..'Z', then it is converted \r
- to an ASCII character in the range 'a'..'z' in Destination. Otherwise, no \r
- conversion is performed. Length ASCII characters from Source are convertered and\r
- stored in Destination.\r
-\r
- @param Destination An ASCII string to store the results of the conversion.\r
- @param Source The source ASCII string of the conversion.\r
- @param Length The number of ASCII characters to convert.\r
-\r
-**/\r
-VOID\r
-EFIAPI\r
-InternalLanguageLibToLower (\r
- OUT CHAR8 *Destination,\r
- IN CONST CHAR8 *Source,\r
- IN UINTN Length\r
- )\r
-{\r
- for (; Length > 0; Length--, Destination++, Source++) {\r
- *Destination = (CHAR8)((*Source >= 'A' && *Source <= 'Z') ? *Source + ('a' - 'A') : *Source);\r
- }\r
-}\r
-\r
-/**\r
- Convert an ISO 639-2 language code to a RFC 4646 language code.\r
- If the ISO 639-2 language code has a corresponding ISO 639-1 code, then the ISO 639-1\r
- code is returned. Else the original ISO 639-2 code is returned. The returned RFC 4646\r
- language code is composed of only a primary language subtag.\r
-\r
- If Iso639Language is NULL, then ASSERT.\r
- If Rfc4646Language is NULL, then ASSERT.\r
-\r
- @param[out] Rfc4646Language Pointers to a buffer large enough for an ASCII string\r
- which reprsents a RFC 4646 language code containging only\r
- either a ISO 639-1 or ISO 639-2 primary language subtag.\r
- This string is Null-terminated.\r
- @param[in] Iso639Language Pointer to a 3-letter ASCII string which represents\r
- an ISO 639-2 language code. This string is not required\r
- to be Null-terminated.\r
-\r
- @retval TRUE The ISO 639-2 language code was converted to a ISO 639-1 code.\r
- @retval FALSE The language code does not have corresponding ISO 639-1 code.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-ConvertIso639ToRfc4646 (\r
- OUT CHAR8 *Rfc4646Language,\r
- IN CONST CHAR8 *Iso639Language\r
- )\r
-{\r
- CONST CHAR8 *Match;\r
- \r
- ASSERT (Iso639Language != NULL);\r
- ASSERT (Rfc4646Language != NULL);\r
-\r
- //\r
- // Convert first 3 characters of Iso639Language to lower case ASCII characters in Rfc4646Language\r
- //\r
- InternalLanguageLibToLower (Rfc4646Language, Iso639Language, 3);\r
- Rfc4646Language[3] = '\0';\r
-\r
- Match = mIso639ToRfc4646ConversionTable;\r
- do {\r
- Match = AsciiStrStr (Match, Rfc4646Language);\r
- if (Match == NULL) {\r
- return FALSE;\r
- }\r
- if (((Match - mIso639ToRfc4646ConversionTable) % 5) == 0) {\r
- break;\r
- }\r
- ++Match;\r
- } while (TRUE);\r
- Rfc4646Language[0] = Match[3];\r
- Rfc4646Language[1] = Match[4];\r
- Rfc4646Language[2] = '\0';\r
- return TRUE;\r
-}\r
-\r
-/**\r
- Convert a RFC 4646 language code to an ISO 639-2 language code. The primary language\r
- subtag of the RFC 4646 code must be either an ISO 639-1 or 639-2 code. If the primary\r
- language subtag is an ISO 639-1 code, then it is converted to its corresponding ISO 639-2\r
- code (T code if applies). Else the ISO 639-2 code is returned.\r
-\r
- If Rfc4646Language is NULL, then ASSERT.\r
- If Iso639Language is NULL, then ASSERT.\r
-\r
- @param[out] Iso639Language Pointers to a buffer large enough for a 3-letter ASCII string\r
- which reprsents an ISO 639-2 language code. The string is Null-terminated.\r
- @param[in] Rfc4646Language Pointer to a RFC 4646 language code string. This string is terminated\r
- by a NULL or a ';' character.\r
-\r
- @retval TRUE Language code converted successfully.\r
- @retval FALSE The RFC 4646 language code is invalid or unsupported.\r
-\r
-**/\r
-BOOLEAN\r
-EFIAPI\r
-ConvertRfc4646ToIso639 (\r
- OUT CHAR8 *Iso639Language,\r
- IN CONST CHAR8 *Rfc4646Language\r
- )\r
-{\r
- CONST CHAR8 *Match;\r
- \r
- ASSERT (Rfc4646Language != NULL);\r
- ASSERT (Iso639Language != NULL);\r
-\r
- //\r
- // RFC 4646 language code check before determining \r
- // if the primary language subtag is ISO 639-1 or 639-2 code\r
- //\r
- if (Rfc4646Language[0] == '\0' || Rfc4646Language[1] == '\0') {\r
- return FALSE;\r
- }\r
- \r
- //\r
- // Check if the primary language subtag is ISO 639-1 code\r
- //\r
- if (Rfc4646Language[2] == ';' || Rfc4646Language[2] == '-' || Rfc4646Language[2] == '\0') {\r
- //\r
- // Convert first 2 characters of Rfc4646Language to lower case ASCII characters in Iso639Language\r
- //\r
- InternalLanguageLibToLower (Iso639Language, Rfc4646Language, 2);\r
- //\r
- // Convert ISO 639-1 code to ISO 639-2 code\r
- //\r
- Iso639Language[2] = '\0';\r
- Match = mIso639ToRfc4646ConversionTable;\r
- do {\r
- Match = AsciiStrStr (Match, Iso639Language);\r
- if (Match == NULL) {\r
- return FALSE;\r
- }\r
- if (((Match - mIso639ToRfc4646ConversionTable) % 5) == 3) {\r
- break;\r
- }\r
- ++Match;\r
- } while (TRUE);\r
- Rfc4646Language = Match - 3;\r
- } else if (!(Rfc4646Language[3] == ';' || Rfc4646Language[3] == '-' || Rfc4646Language[3] == '\0')) {\r
- return FALSE;\r
- }\r
- Iso639Language[0] = Rfc4646Language[0];\r
- Iso639Language[1] = Rfc4646Language[1];\r
- Iso639Language[2] = Rfc4646Language[2];\r
- Iso639Language[3] = '\0';\r
- return TRUE; \r
-}\r
-\r
-/**\r
- Convert ISO 639-2 language codes to RFC 4646 codes and return the converted codes.\r
- Caller is responsible for freeing the allocated buffer.\r
-\r
- If Iso639Languages is NULL, then ASSERT.\r
-\r
- @param[in] Iso639Languages Pointers to a Null-terminated ISO 639-2 language codes string containing\r
- one or more ISO 639-2 3-letter language codes.\r
- \r
- @retval NULL Invalid ISO 639-2 language code found.\r
- @retval NULL Out of memory.\r
- @return Pointer to the allocate buffer containing the Null-terminated converted language codes string.\r
- This string is composed of one or more RFC4646 language codes each of which has only\r
- ISO 639-1 2-letter primary language subtag.\r
-\r
-**/\r
-CHAR8 *\r
-EFIAPI\r
-ConvertLanguagesIso639ToRfc4646 (\r
- IN CONST CHAR8 *Iso639Languages\r
- )\r
-{\r
- UINTN Length;\r
- UINTN Iso639Index;\r
- UINTN Rfc4646Index;\r
- CHAR8 *Rfc4646Languages;\r
- \r
- ASSERT (Iso639Languages != NULL);\r
- \r
- //\r
- // The length of ISO 639-2 lanugage codes string must be multiple of 3\r
- //\r
- Length = AsciiStrLen (Iso639Languages);\r
- if (Length % 3 != 0) {\r
- return NULL;\r
- }\r
- \r
- //\r
- // Allocate buffer for RFC 4646 language codes string\r
- //\r
- Rfc4646Languages = AllocatePool (Length + (Length / 3));\r
- if (Rfc4646Languages == NULL) {\r
- return NULL;\r
- }\r
-\r
- for (Iso639Index = 0, Rfc4646Index = 0; Iso639Languages[Iso639Index] != '\0'; Iso639Index += 3) {\r
- if (ConvertIso639ToRfc4646 (&Rfc4646Languages[Rfc4646Index], &Iso639Languages[Iso639Index])) {\r
- Rfc4646Index += 2;\r
- } else {\r
- Rfc4646Index += 3;\r
- }\r
- Rfc4646Languages[Rfc4646Index++] = ';';\r
- }\r
- Rfc4646Languages[Rfc4646Index - 1] = '\0';\r
- return Rfc4646Languages;\r
-}\r
-\r
-/**\r
- Convert RFC 4646 language codes to ISO 639-2 codes and return the converted codes.\r
- The primary language subtag of the RFC 4646 code must be either an ISO 639-1 or 639-2 code.\r
- Caller is responsible for freeing the allocated buffer.\r
-\r
- If Rfc4646Languages is NULL, then ASSERT.\r
-\r
- @param[in] Rfc4646Languages Pointers to a Null-terminated RFC 4646 language codes string containing\r
- one or more RFC 4646 language codes.\r
- \r
- @retval NULL Invalid or unsupported RFC 4646 language code found.\r
- @retval NULL Out of memory.\r
- @return Pointer to the allocate buffer containing the Null-terminated converted language codes string.\r
- This string is composed of one or more ISO 639-2 language codes.\r
-\r
-**/\r
-CHAR8 *\r
-EFIAPI\r
-ConvertLanguagesRfc4646ToIso639 (\r
- IN CONST CHAR8 *Rfc4646Languages\r
- )\r
-{\r
- UINTN NumLanguages;\r
- UINTN Iso639Index;\r
- UINTN Rfc4646Index;\r
- CHAR8 *Iso639Languages;\r
-\r
- ASSERT (Rfc4646Languages != NULL);\r
-\r
- //\r
- // Determine the number of languages in the RFC 4646 language codes string\r
- //\r
- for (Rfc4646Index = 0, NumLanguages = 1; Rfc4646Languages[Rfc4646Index] != '\0'; Rfc4646Index++) {\r
- if (Rfc4646Languages[Rfc4646Index] == ';') {\r
- NumLanguages++;\r
- }\r
- }\r
- \r
- //\r
- // Allocate buffer for ISO 639-2 language codes string\r
- //\r
- Iso639Languages = AllocateZeroPool (NumLanguages * 3 + 1);\r
- if (Iso639Languages == NULL) {\r
- return NULL;\r
- }\r
-\r
- //\r
- // Do the conversion for each RFC 4646 language code\r
- //\r
- for (Rfc4646Index = 0, Iso639Index = 0; Rfc4646Languages[Rfc4646Index] != '\0';) {\r
- if (ConvertRfc4646ToIso639 (&Iso639Languages[Iso639Index], &Rfc4646Languages[Rfc4646Index])) {\r
- Iso639Index += 3;\r
- } else {\r
- FreePool (Iso639Languages);\r
- return NULL;\r
- }\r
- //\r
- // Locate next language code\r
- //\r
- while (Rfc4646Languages[Rfc4646Index] != ';' && Rfc4646Languages[Rfc4646Index] != '\0') {\r
- Rfc4646Index++;\r
- }\r
- if (Rfc4646Languages[Rfc4646Index] == ';') {\r
- Rfc4646Index++;\r
- }\r
- }\r
- Iso639Languages[Iso639Index] = '\0';\r
- return Iso639Languages;\r
-}\r
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