diff options
Diffstat (limited to 'MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c')
| -rw-r--r-- | MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c | 67 |
1 files changed, 66 insertions, 1 deletions
diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c b/MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c index 260ae84..acdb8ca 100644 --- a/MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c +++ b/MdeModulePkg/Universal/Console/TerminalDxe/Vtutf8.c @@ -1,5 +1,5 @@ /** @file
- Implementation translation among different code tyies.
+ Implementation of translation upon VT-UTF8.
Copyright (c) 2006, Intel Corporation. <BR>
All rights reserved. This program and the accompanying materials
@@ -14,6 +14,15 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include "Terminal.h"
+/**
+ Translate all VT-UTF8 characters in the Raw FIFI into unicode characters,
+ and insert them into Unicode FIFO.
+
+ @param TerminalDevice The terminal device.
+
+ @return None.
+
+**/
VOID
VTUTF8RawDataToUnicode (
IN TERMINAL_DEV *TerminalDevice
@@ -43,6 +52,17 @@ VTUTF8RawDataToUnicode ( }
}
+/**
+ Get one valid VT-UTF8 characters set from Raw Data FIFO.
+
+ @param Utf8Device The terminal device.
+ @param Utf8Char Returned valid VT-UTF8 characters set.
+ @param ValidBytes The count of returned VT-VTF8 characters.
+ If ValidBytes is zero, no valid VT-UTF8 returned.
+
+ @retval None.
+
+**/
VOID
GetOneValidUtf8Char (
IN TERMINAL_DEV *Utf8Device,
@@ -148,6 +168,23 @@ GetOneValidUtf8Char ( return ;
}
+/**
+ Translate VT-UTF8 characters into one Unicode character.
+
+ UTF8 Encoding Table
+ Bits per Character | Unicode Character Range | Unicode Binary Encoding | UTF8 Binary Encoding
+ 0-7 | 0x0000 - 0x007F | 00000000 0xxxxxxx | 0xxxxxxx
+ 8-11 | 0x0080 - 0x07FF | 00000xxx xxxxxxxx | 110xxxxx 10xxxxxx
+ 12-16 | 0x0800 - 0xFFFF | xxxxxxxx xxxxxxxx | 1110xxxx 10xxxxxx 10xxxxxx
+
+
+ @param Utf8Char VT-UTF8 character set needs translating.
+ @param ValidBytes The count of valid VT-UTF8 characters.
+ @param UnicodeChar Returned unicode character.
+
+ @return None.
+
+**/
VOID
Utf8ToUnicode (
IN UTF8_CHAR Utf8Char,
@@ -206,6 +243,24 @@ Utf8ToUnicode ( return ;
}
+/**
+ Translate one Unicode character into VT-UTF8 characters.
+
+ UTF8 Encoding Table
+ Bits per Character | Unicode Character Range | Unicode Binary Encoding | UTF8 Binary Encoding
+ 0-7 | 0x0000 - 0x007F | 00000000 0xxxxxxx | 0xxxxxxx
+ 8-11 | 0x0080 - 0x07FF | 00000xxx xxxxxxxx | 110xxxxx 10xxxxxx
+ 12-16 | 0x0800 - 0xFFFF | xxxxxxxx xxxxxxxx | 1110xxxx 10xxxxxx 10xxxxxx
+
+
+ @param Unicode Unicode character need translating.
+ @param Utf8Char Return VT-UTF8 character set.
+ @param ValidBytes The count of valid VT-UTF8 characters. If
+ ValidBytes is zero, no valid VT-UTF8 returned.
+
+ @return None.
+
+**/
VOID
UnicodeToUtf8 (
IN CHAR16 Unicode,
@@ -249,6 +304,16 @@ UnicodeToUtf8 ( }
}
+
+/**
+ Check if input string is valid VT-UTF8 string.
+
+ @param TerminalDevice The terminal device.
+ @param WString The input string.
+
+ @retval EFI_SUCCESS If all input characters are valid.
+
+**/
EFI_STATUS
VTUTF8TestString (
IN TERMINAL_DEV *TerminalDevice,
|