1 /*++ 2 3 Copyright (c) 2004, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 Module Name: 13 14 Sprint.c 15 16 Abstract: 17 18 Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very 19 simple implemenation of SPrint() and Print() to support debug. 20 21 You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a 22 time. This makes the implementation very simple. 23 24 VSPrint, Print, SPrint format specification has the follwoing form 25 26 %[flags][width]type 27 28 flags: 29 '-' - Left justify 30 '+' - Prefix a sign 31 ' ' - Prefix a blank 32 ',' - Place commas in numberss 33 '0' - Prefix for width with zeros 34 'l' - UINT64 35 'L' - UINT64 36 37 width: 38 '*' - Get width from a UINTN argumnet from the argument list 39 Decimal number that represents width of print 40 41 type: 42 'X' - argument is a UINTN hex number, prefix '0' 43 'x' - argument is a hex number 44 'd' - argument is a decimal number 45 'a' - argument is an ascii string 46 'S','s' - argument is an Unicode string 47 'g' - argument is a pointer to an EFI_GUID 48 't' - argument is a pointer to an EFI_TIME structure 49 'c' - argument is an ascii character 50 'r' - argument is EFI_STATUS 51 '%' - Print a % 52 53 --*/ 54 55 #include "TianoCommon.h" 56 #include "PrintWidth.h" 57 #include "EfiPrintLib.h" 58 #include "Print.h" 59 60 UINTN 61 USPrint ( 62 OUT CHAR16 *Buffer, 63 IN UINTN BufferSize, 64 IN CONST CHAR16 *Format, 65 ... 66 ) 67 /*++ 68 69 Routine Description: 70 71 Process format and place the results in Buffer for wide chars. 72 73 Arguments: 74 75 Buffer - Wide char buffer to print the results of the parsing of Format into. 76 BufferSize - Maximum number of characters to put into buffer. 77 Format - Format string 78 ... - Vararg list consumed by processing Format. 79 80 Returns: 81 82 Number of characters printed. 83 84 --*/ 85 { 86 UINTN Return; 87 VA_LIST Marker; 88 89 VA_START (Marker, Format); 90 Return = UnicodeVSPrint (Buffer, BufferSize, Format, Marker); 91 VA_END (Marker); 92 93 return Return; 94 } 95 96 UINTN 97 UvSPrint ( 98 OUT CHAR16 *Buffer, 99 IN UINTN BufferSize, 100 IN CONST CHAR16 *FormatString, 101 IN VA_LIST Marker 102 ) 103 /*++ 104 105 Routine Description: 106 107 Internal implementation of USPrint. 108 Process format and place the results in Buffer for wide chars. 109 110 Arguments: 111 112 Buffer - Wide char buffer to print the results of the parsing of Format into. 113 BufferSize - Maximum number of characters to put into buffer. 114 FormatString - Format string 115 Marker - Vararg list consumed by processing Format. 116 117 Returns: 118 119 Number of characters printed. 120 121 --*/ 122 { 123 UINTN Index; 124 CHAR8 AsciiFormat[EFI_DRIVER_LIB_MAX_PRINT_BUFFER]; 125 CHAR8 AsciiResult[EFI_DRIVER_LIB_MAX_PRINT_BUFFER]; 126 127 for (Index = 0; Index < EFI_DRIVER_LIB_MAX_PRINT_BUFFER && FormatString[Index] != '\0'; Index++) { 128 AsciiFormat[Index] = (CHAR8) FormatString[Index]; 129 } 130 131 AsciiFormat[Index] = '\0'; 132 133 Index = VSPrint (AsciiResult, EFI_DRIVER_LIB_MAX_PRINT_BUFFER, AsciiFormat, Marker); 134 135 for (Index = 0; (Index < (BufferSize - 1)) && AsciiResult[Index] != '\0'; Index++) { 136 Buffer[Index] = (CHAR16) AsciiResult[Index]; 137 } 138 139 Buffer[Index] = '\0'; 140 141 return Index++; 142 } 143
