4ac4deb706
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10574 6f19259b-4bc3-4df7-8a09-765794883524
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/*++
|
|
|
|
Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>
|
|
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:
|
|
|
|
Sprint.c
|
|
|
|
Abstract:
|
|
|
|
Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very
|
|
simple implemenation of SPrint() and Print() to support debug.
|
|
|
|
You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a
|
|
time. This makes the implementation very simple.
|
|
|
|
VSPrint, Print, SPrint format specification has the follwoing form
|
|
|
|
%[flags][width]type
|
|
|
|
flags:
|
|
'-' - Left justify
|
|
'+' - Prefix a sign
|
|
' ' - Prefix a blank
|
|
',' - Place commas in numberss
|
|
'0' - Prefix for width with zeros
|
|
'l' - UINT64
|
|
'L' - UINT64
|
|
|
|
width:
|
|
'*' - Get width from a UINTN argumnet from the argument list
|
|
Decimal number that represents width of print
|
|
|
|
type:
|
|
'X' - argument is a UINTN hex number, prefix '0'
|
|
'x' - argument is a hex number
|
|
'd' - argument is a decimal number
|
|
'a' - argument is an ascii string
|
|
'S','s' - argument is an Unicode string
|
|
'g' - argument is a pointer to an EFI_GUID
|
|
't' - argument is a pointer to an EFI_TIME structure
|
|
'c' - argument is an ascii character
|
|
'r' - argument is EFI_STATUS
|
|
'%' - Print a %
|
|
|
|
--*/
|
|
|
|
#include "TianoCommon.h"
|
|
#include "PrintWidth.h"
|
|
#include "EfiPrintLib.h"
|
|
#include "Print.h"
|
|
|
|
|
|
UINTN
|
|
ASPrint (
|
|
OUT CHAR8 *Buffer,
|
|
IN UINTN BufferSize,
|
|
IN CONST CHAR8 *Format,
|
|
...
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Process format and place the results in Buffer for narrow chars.
|
|
|
|
Arguments:
|
|
|
|
Buffer - Narrow char buffer to print the results of the parsing of Format into.
|
|
BufferSize - Maximum number of characters to put into buffer.
|
|
Format - Format string
|
|
... - Vararg list consumed by processing Format.
|
|
|
|
Returns:
|
|
|
|
Number of characters printed.
|
|
|
|
--*/
|
|
{
|
|
UINTN Return;
|
|
VA_LIST Marker;
|
|
|
|
VA_START (Marker, Format);
|
|
Return = AvSPrint (Buffer, BufferSize, Format, Marker);
|
|
VA_END (Marker);
|
|
|
|
return Return;
|
|
}
|
|
|
|
|
|
UINTN
|
|
AvSPrint (
|
|
OUT CHAR8 *Buffer,
|
|
IN UINTN BufferSize,
|
|
IN CONST CHAR8 *FormatString,
|
|
IN VA_LIST Marker
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Internal implementation of ASPrint.
|
|
Process format and place the results in Buffer for narrow chars.
|
|
|
|
Arguments:
|
|
|
|
Buffer - Narrow char buffer to print the results of the parsing of Format into.
|
|
BufferSize - Maximum number of characters to put into buffer.
|
|
FormatString - Format string
|
|
Marker - Vararg list consumed by processing Format.
|
|
|
|
Returns:
|
|
|
|
Number of characters printed.
|
|
|
|
--*/
|
|
{
|
|
UINTN Index;
|
|
CHAR16 UnicodeFormat[EFI_DRIVER_LIB_MAX_PRINT_BUFFER+1];
|
|
CHAR16 UnicodeResult[EFI_DRIVER_LIB_MAX_PRINT_BUFFER+1];
|
|
|
|
for (Index = 0; Index < EFI_DRIVER_LIB_MAX_PRINT_BUFFER && FormatString[Index] != '\0'; Index++) {
|
|
UnicodeFormat[Index] = (CHAR16) FormatString[Index];
|
|
}
|
|
|
|
UnicodeFormat[Index] = '\0';
|
|
|
|
Index = VSPrint (UnicodeResult, sizeof (UnicodeResult), UnicodeFormat, Marker);
|
|
|
|
for (Index = 0; (Index < (BufferSize - 1)) && UnicodeResult[Index] != '\0'; Index++) {
|
|
Buffer[Index] = (CHAR8) UnicodeResult[Index];
|
|
}
|
|
|
|
Buffer[Index] = '\0';
|
|
|
|
return Index++;
|
|
}
|