diff options
Diffstat (limited to 'MdeModulePkg/Universal/Disk/UnicodeCollation/English/Dxe/UnicodeCollationEng.c')
| -rw-r--r-- | MdeModulePkg/Universal/Disk/UnicodeCollation/English/Dxe/UnicodeCollationEng.c | 479 |
1 files changed, 479 insertions, 0 deletions
diff --git a/MdeModulePkg/Universal/Disk/UnicodeCollation/English/Dxe/UnicodeCollationEng.c b/MdeModulePkg/Universal/Disk/UnicodeCollation/English/Dxe/UnicodeCollationEng.c new file mode 100644 index 0000000..5b543e9 --- /dev/null +++ b/MdeModulePkg/Universal/Disk/UnicodeCollation/English/Dxe/UnicodeCollationEng.c @@ -0,0 +1,479 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+Module Name:
+
+ UnicodeCollationEng.c
+
+Abstract:
+
+ Unicode Collation Protocol (English)
+
+Revision History
+
+--*/
+
+
+#include "UnicodeCollationEng.h"
+
+CHAR8 mEngUpperMap[0x100];
+CHAR8 mEngLowerMap[0x100];
+CHAR8 mEngInfoMap[0x100];
+
+CHAR8 mOtherChars[] = {
+ '0',
+ '1',
+ '2',
+ '3',
+ '4',
+ '5',
+ '6',
+ '7',
+ '8',
+ '9',
+ '\\',
+ '.',
+ '_',
+ '^',
+ '$',
+ '~',
+ '!',
+ '#',
+ '%',
+ '&',
+ '-',
+ '{',
+ '}',
+ '(',
+ ')',
+ '@',
+ '`',
+ '\'',
+ '\0'
+};
+
+EFI_HANDLE mHandle = NULL;
+
+EFI_UNICODE_COLLATION_PROTOCOL UnicodeEng = {
+ EngStriColl,
+ EngMetaiMatch,
+ EngStrLwr,
+ EngStrUpr,
+ EngFatToStr,
+ EngStrToFat,
+ "eng"
+};
+
+//
+//
+//
+EFI_STATUS
+InitializeUnicodeCollationEng (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+Routine Description:
+
+ Initializes the Unicode Collation Driver
+
+Arguments:
+
+ ImageHandle -
+
+ SystemTable -
+
+Returns:
+
+ EFI_SUCCESS
+ EFI_OUT_OF_RESOURCES
+
+--*/
+{
+ UINTN Index;
+ UINTN Index2;
+
+ //
+ // Initialize mapping tables for the supported languages
+ //
+ for (Index = 0; Index < 0x100; Index++) {
+ mEngUpperMap[Index] = (CHAR8) Index;
+ mEngLowerMap[Index] = (CHAR8) Index;
+ mEngInfoMap[Index] = 0;
+
+ if ((Index >= 'a' && Index <= 'z') || (Index >= 0xe0 && Index <= 0xf6) || (Index >= 0xf8 && Index <= 0xfe)) {
+
+ Index2 = Index - 0x20;
+ mEngUpperMap[Index] = (CHAR8) Index2;
+ mEngLowerMap[Index2] = (CHAR8) Index;
+
+ mEngInfoMap[Index] |= CHAR_FAT_VALID;
+ mEngInfoMap[Index2] |= CHAR_FAT_VALID;
+ }
+ }
+
+ for (Index = 0; mOtherChars[Index]; Index++) {
+ Index2 = mOtherChars[Index];
+ mEngInfoMap[Index2] |= CHAR_FAT_VALID;
+ }
+ //
+ // Create a handle for the device
+ //
+ return gBS->InstallProtocolInterface (
+ &mHandle,
+ &gEfiUnicodeCollationProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &UnicodeEng
+ );
+}
+
+INTN
+EFIAPI
+EngStriColl (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN CHAR16 *s1,
+ IN CHAR16 *s2
+ )
+/*++
+
+Routine Description:
+
+ Performs a case-insensitive comparison of two Null-terminated Unicode strings.
+
+Arguments:
+
+ This
+ s1
+ s2
+
+Returns:
+
+--*/
+{
+ while (*s1) {
+ if (ToUpper (*s1) != ToUpper (*s2)) {
+ break;
+ }
+
+ s1 += 1;
+ s2 += 1;
+ }
+
+ return ToUpper (*s1) - ToUpper (*s2);
+}
+
+VOID
+EFIAPI
+EngStrLwr (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN OUT CHAR16 *Str
+ )
+/*++
+
+Routine Description:
+
+ Converts all the Unicode characters in a Null-terminated Unicode string
+ to lower case Unicode characters.
+
+Arguments:
+
+ This - A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
+ Str1 - A pointer to a Null-terminated Unicode string.
+ Str2 - A pointer to a Null-terminated Unicode string.
+
+Returns:
+
+ 0 - s1 is equivalent to s2.
+ > 0 - s1 is lexically greater than s2.
+ < 0 - s1 is lexically less than s2.
+
+--*/
+{
+ while (*Str) {
+ *Str = ToLower (*Str);
+ Str += 1;
+ }
+}
+
+VOID
+EFIAPI
+EngStrUpr (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN OUT CHAR16 *Str
+ )
+/*++
+
+Routine Description:
+
+ Converts all the Unicode characters in a Null-terminated
+ Unicode string to upper case Unicode characters.
+
+Arguments:
+ This
+ Str
+
+Returns:
+ None
+
+--*/
+{
+ while (*Str) {
+ *Str = ToUpper (*Str);
+ Str += 1;
+ }
+}
+
+BOOLEAN
+EFIAPI
+EngMetaiMatch (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN CHAR16 *String,
+ IN CHAR16 *Pattern
+ )
+/*++
+
+Routine Description:
+
+ Performs a case-insensitive comparison between a Null-terminated
+ Unicode pattern string and a Null-terminated Unicode string.
+
+ The pattern string can use the '?' wildcard to match any character,
+ and the '*' wildcard to match any sub-string.
+
+Arguments:
+
+ This - A pointer to the EFI_UNICODE_COLLATION_PROTOCOL instance.
+ String - A pointer to a Null-terminated Unicode string.
+ Pattern - A pointer to a Null-terminated Unicode pattern string.
+
+Returns:
+
+ TRUE - Pattern was found in String.
+ FALSE - Pattern was not found in String.
+
+--*/
+{
+ CHAR16 CharC;
+ CHAR16 CharP;
+ CHAR16 Index3;
+
+ for (;;) {
+ CharP = *Pattern;
+ Pattern += 1;
+
+ switch (CharP) {
+ case 0:
+ //
+ // End of pattern. If end of string, TRUE match
+ //
+ if (*String) {
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+
+ case '*':
+ //
+ // Match zero or more chars
+ //
+ while (*String) {
+ if (EngMetaiMatch (This, String, Pattern)) {
+ return TRUE;
+ }
+
+ String += 1;
+ }
+
+ return EngMetaiMatch (This, String, Pattern);
+
+ case '?':
+ //
+ // Match any one char
+ //
+ if (!*String) {
+ return FALSE;
+ }
+
+ String += 1;
+ break;
+
+ case '[':
+ //
+ // Match char set
+ //
+ CharC = *String;
+ if (!CharC) {
+ //
+ // syntax problem
+ //
+ return FALSE;
+ }
+
+ Index3 = 0;
+ CharP = *Pattern++;
+ while (CharP) {
+ if (CharP == ']') {
+ return FALSE;
+ }
+
+ if (CharP == '-') {
+ //
+ // if range of chars, get high range
+ //
+ CharP = *Pattern;
+ if (CharP == 0 || CharP == ']') {
+ //
+ // syntax problem
+ //
+ return FALSE;
+ }
+
+ if (ToUpper (CharC) >= ToUpper (Index3) && ToUpper (CharC) <= ToUpper (CharP)) {
+ //
+ // if in range, it's a match
+ //
+ break;
+ }
+ }
+
+ Index3 = CharP;
+ if (ToUpper (CharC) == ToUpper (CharP)) {
+ //
+ // if char matches
+ //
+ break;
+ }
+
+ CharP = *Pattern++;
+ }
+ //
+ // skip to end of match char set
+ //
+ while (CharP && CharP != ']') {
+ CharP = *Pattern;
+ Pattern += 1;
+ }
+
+ String += 1;
+ break;
+
+ default:
+ CharC = *String;
+ if (ToUpper (CharC) != ToUpper (CharP)) {
+ return FALSE;
+ }
+
+ String += 1;
+ break;
+ }
+ }
+}
+
+VOID
+EFIAPI
+EngFatToStr (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN UINTN FatSize,
+ IN CHAR8 *Fat,
+ OUT CHAR16 *String
+ )
+/*++
+
+Routine Description:
+
+ Converts an 8.3 FAT file name using an OEM character set
+ to a Null-terminated Unicode string.
+
+ BUGBUG: Function has to expand DBCS FAT chars, currently not.
+
+Arguments:
+ This
+ FatSize
+ Fat
+ String
+
+Returns:
+
+--*/
+{
+ //
+ // No DBCS issues, just expand and add null terminate to end of string
+ //
+ while (*Fat && FatSize) {
+ *String = *Fat;
+ String += 1;
+ Fat += 1;
+ FatSize -= 1;
+ }
+
+ *String = 0;
+}
+
+BOOLEAN
+EFIAPI
+EngStrToFat (
+ IN EFI_UNICODE_COLLATION_PROTOCOL *This,
+ IN CHAR16 *String,
+ IN UINTN FatSize,
+ OUT CHAR8 *Fat
+ )
+/*++
+
+Routine Description:
+
+ Converts a Null-terminated Unicode string to legal characters
+ in a FAT filename using an OEM character set.
+
+ Functions has to crunch string to a fat string. Replacing
+ any chars that can't be represented in the fat name.
+
+Arguments:
+ This
+ String
+ FatSize
+ Fat
+
+Returns:
+ TRUE
+ FALSE
+--*/
+{
+ BOOLEAN SpecialCharExist;
+
+ SpecialCharExist = FALSE;
+ while (*String && FatSize) {
+ //
+ // Skip '.' or ' ' when making a fat name
+ //
+ if (*String != '.' && *String != ' ') {
+ //
+ // If this is a valid fat char, move it.
+ // Otherwise, move a '_' and flag the fact that the name needs an Lfn
+ //
+ if (*String < 0x100 && (mEngInfoMap[*String] & CHAR_FAT_VALID)) {
+ *Fat = mEngUpperMap[*String];
+ } else {
+ *Fat = '_';
+ SpecialCharExist = TRUE;
+ }
+
+ Fat += 1;
+ FatSize -= 1;
+ }
+
+ String += 1;
+ }
+ //
+ // Do not terminate that fat string
+ //
+ return SpecialCharExist;
+}
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