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      1 /** @file
      2   Unicode Collation protocol that follows the UEFI 2.0 specification.
      3   This protocol is used to allow code running in the boot services environment
      4   to perform lexical comparison functions on Unicode strings for given languages.
      5 
      6 Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
      7 This program and the accompanying materials are licensed and made available under
      8 the terms and conditions of the BSD License that accompanies this distribution.
      9 The full text of the license may be found at
     10 http://opensource.org/licenses/bsd-license.php.
     11 
     12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     14 
     15 **/
     16 
     17 #ifndef __UNICODE_COLLATION_H__
     18 #define __UNICODE_COLLATION_H__
     19 
     20 #define EFI_UNICODE_COLLATION_PROTOCOL_GUID \
     21   { \
     22     0x1d85cd7f, 0xf43d, 0x11d2, {0x9a, 0xc, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
     23   }
     24 
     25 #define EFI_UNICODE_COLLATION_PROTOCOL2_GUID \
     26   { \
     27     0xa4c751fc, 0x23ae, 0x4c3e, {0x92, 0xe9, 0x49, 0x64, 0xcf, 0x63, 0xf3, 0x49 } \
     28   }
     29 
     30 typedef struct _EFI_UNICODE_COLLATION_PROTOCOL  EFI_UNICODE_COLLATION_PROTOCOL;
     31 
     32 
     33 ///
     34 /// Protocol GUID name defined in EFI1.1.
     35 ///
     36 #define UNICODE_COLLATION_PROTOCOL              EFI_UNICODE_COLLATION_PROTOCOL_GUID
     37 
     38 ///
     39 /// Protocol defined in EFI1.1.
     40 ///
     41 typedef EFI_UNICODE_COLLATION_PROTOCOL          UNICODE_COLLATION_INTERFACE;
     42 
     43 ///
     44 /// Protocol data structures and defines
     45 ///
     46 #define EFI_UNICODE_BYTE_ORDER_MARK (CHAR16) (0xfeff)
     47 
     48 //
     49 // Protocol member functions
     50 //
     51 /**
     52   Performs a case-insensitive comparison of two Null-terminated strings.
     53 
     54   @param  This A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
     55   @param  Str1 A pointer to a Null-terminated string.
     56   @param  Str2 A pointer to a Null-terminated string.
     57 
     58   @retval 0   Str1 is equivalent to Str2.
     59   @retval >0  Str1 is lexically greater than Str2.
     60   @retval <0  Str1 is lexically less than Str2.
     61 
     62 **/
     63 typedef
     64 INTN
     65 (EFIAPI *EFI_UNICODE_COLLATION_STRICOLL)(
     66   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
     67   IN CHAR16                                 *Str1,
     68   IN CHAR16                                 *Str2
     69   );
     70 
     71 /**
     72   Performs a case-insensitive comparison of a Null-terminated
     73   pattern string and a Null-terminated string.
     74 
     75   @param  This    A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
     76   @param  String  A pointer to a Null-terminated string.
     77   @param  Pattern A pointer to a Null-terminated pattern string.
     78 
     79   @retval TRUE    Pattern was found in String.
     80   @retval FALSE   Pattern was not found in String.
     81 
     82 **/
     83 typedef
     84 BOOLEAN
     85 (EFIAPI *EFI_UNICODE_COLLATION_METAIMATCH)(
     86   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
     87   IN CHAR16                                 *String,
     88   IN CHAR16                                 *Pattern
     89   );
     90 
     91 /**
     92   Converts all the characters in a Null-terminated string to
     93   lower case characters.
     94 
     95   @param  This   A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
     96   @param  String A pointer to a Null-terminated string.
     97 
     98 **/
     99 typedef
    100 VOID
    101 (EFIAPI *EFI_UNICODE_COLLATION_STRLWR)(
    102   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
    103   IN OUT CHAR16                             *Str
    104   );
    105 
    106 /**
    107   Converts all the characters in a Null-terminated string to upper
    108   case characters.
    109 
    110   @param  This   A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
    111   @param  String A pointer to a Null-terminated string.
    112 
    113 **/
    114 typedef
    115 VOID
    116 (EFIAPI *EFI_UNICODE_COLLATION_STRUPR)(
    117   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
    118   IN OUT CHAR16                             *Str
    119   );
    120 
    121 /**
    122   Converts an 8.3 FAT file name in an OEM character set to a Null-terminated
    123   string.
    124 
    125   @param  This    A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
    126   @param  FatSize The size of the string Fat in bytes.
    127   @param  Fat     A pointer to a Null-terminated string that contains an 8.3 file
    128                   name using an 8-bit OEM character set.
    129   @param  String  A pointer to a Null-terminated string. The string must
    130                   be allocated in advance to hold FatSize characters.
    131 
    132 **/
    133 typedef
    134 VOID
    135 (EFIAPI *EFI_UNICODE_COLLATION_FATTOSTR)(
    136   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
    137   IN UINTN                                  FatSize,
    138   IN CHAR8                                  *Fat,
    139   OUT CHAR16                                *String
    140   );
    141 
    142 /**
    143   Converts a Null-terminated string to legal characters in a FAT
    144   filename using an OEM character set.
    145 
    146   @param  This    A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
    147   @param  String  A pointer to a Null-terminated string.
    148   @param  FatSize The size of the string Fat in bytes.
    149   @param  Fat     A pointer to a string that contains the converted version of
    150                   String using legal FAT characters from an OEM character set.
    151 
    152   @retval TRUE    One or more conversions failed and were substituted with '_'
    153   @retval FALSE   None of the conversions failed.
    154 
    155 **/
    156 typedef
    157 BOOLEAN
    158 (EFIAPI *EFI_UNICODE_COLLATION_STRTOFAT)(
    159   IN EFI_UNICODE_COLLATION_PROTOCOL         *This,
    160   IN CHAR16                                 *String,
    161   IN UINTN                                  FatSize,
    162   OUT CHAR8                                 *Fat
    163   );
    164 
    165 ///
    166 /// The EFI_UNICODE_COLLATION_PROTOCOL is used to perform case-insensitive
    167 /// comparisons of strings.
    168 ///
    169 struct _EFI_UNICODE_COLLATION_PROTOCOL {
    170   EFI_UNICODE_COLLATION_STRICOLL    StriColl;
    171   EFI_UNICODE_COLLATION_METAIMATCH  MetaiMatch;
    172   EFI_UNICODE_COLLATION_STRLWR      StrLwr;
    173   EFI_UNICODE_COLLATION_STRUPR      StrUpr;
    174 
    175   //
    176   // for supporting fat volumes
    177   //
    178   EFI_UNICODE_COLLATION_FATTOSTR    FatToStr;
    179   EFI_UNICODE_COLLATION_STRTOFAT    StrToFat;
    180 
    181   ///
    182   /// A Null-terminated ASCII string array that contains one or more language codes.
    183   /// When this field is used for UnicodeCollation2, it is specified in RFC 4646 format.
    184   /// When it is used for UnicodeCollation, it is specified in ISO 639-2 format.
    185   ///
    186   CHAR8                             *SupportedLanguages;
    187 };
    188 
    189 extern EFI_GUID gEfiUnicodeCollationProtocolGuid;
    190 extern EFI_GUID gEfiUnicodeCollation2ProtocolGuid;
    191 
    192 #endif
    193