/** @file | |
Implementation of translation upon PC ANSI. | |
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include "Terminal.h" | |
/** | |
Translate all raw data in the Raw FIFO into unicode, and insert | |
them into Unicode FIFO. | |
@param TerminalDevice The terminal device. | |
**/ | |
VOID | |
AnsiRawDataToUnicode ( | |
IN TERMINAL_DEV *TerminalDevice | |
) | |
{ | |
UINT8 RawData; | |
// | |
// pop the raw data out from the raw fifo, | |
// and translate it into unicode, then push | |
// the unicode into unicode fifo, until the raw fifo is empty. | |
// | |
while (!IsRawFiFoEmpty (TerminalDevice) && !IsUnicodeFiFoFull (TerminalDevice)) { | |
RawFiFoRemoveOneKey (TerminalDevice, &RawData); | |
UnicodeFiFoInsertOneKey (TerminalDevice, (UINT16)RawData); | |
} | |
} | |
/** | |
Check if input string is valid Ascii string, valid EFI control characters | |
or valid text graphics. | |
@param TerminalDevice The terminal device. | |
@param WString The input string. | |
@retval EFI_UNSUPPORTED If not all input characters are valid. | |
@retval EFI_SUCCESS If all input characters are valid. | |
**/ | |
EFI_STATUS | |
AnsiTestString ( | |
IN TERMINAL_DEV *TerminalDevice, | |
IN CHAR16 *WString | |
) | |
{ | |
CHAR8 GraphicChar; | |
// | |
// support three kind of character: | |
// valid ascii, valid efi control char, valid text graphics. | |
// | |
for ( ; *WString != CHAR_NULL; WString++) { | |
if ( !(TerminalIsValidAscii (*WString) || | |
TerminalIsValidEfiCntlChar (*WString) || | |
TerminalIsValidTextGraphics (*WString, &GraphicChar, NULL))) | |
{ | |
return EFI_UNSUPPORTED; | |
} | |
} | |
return EFI_SUCCESS; | |
} |