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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