MdePkg/Library/BasePrintLib/PrintLibInternal.h

   1 /** @file
   2   Print Library Internal Functions.
   3
   4   Copyright (c) 2006 - 2007, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __PRINT_LIB_INTERNAL_H
  16 #define __PRINT_LIB_INTERNAL_H
  17
  18 //
  19 // Include common header file for this module.
  20 //
  21 #include "CommonHeader.h"
  22
  23 //
  24 // Print primitives
  25 //
  26 //#define LEFT_JUSTIFY      0x01
  27 #define PREFIX_SIGN       0x02
  28 #define PREFIX_BLANK      0x04
  29 //#define COMMA_TYPE        0x08
  30 #define LONG_TYPE         0x10
  31 //#define PREFIX_ZERO       0x20
  32 #define OUTPUT_UNICODE    0x40
  33 //#define RADIX_HEX         0x80
  34 #define FORMAT_UNICODE    0x100
  35 #define PAD_TO_WIDTH      0x200
  36 #define ARGUMENT_UNICODE  0x400
  37 #define PRECISION         0x800
  38 #define ARGUMENT_REVERSED 0x1000
  39
  40 //
  41 // Record date and time information
  42 //
  43 typedef struct {
  44   UINT16  Year;
  45   UINT8   Month;
  46   UINT8   Day;
  47   UINT8   Hour;
  48   UINT8   Minute;
  49   UINT8   Second;
  50   UINT8   Pad1;
  51   UINT32  Nanosecond;
  52   INT16   TimeZone;
  53   UINT8   Daylight;
  54   UINT8   Pad2;
  55 } TIME;
  56
  57 /**
  58   Worker function that produces a Null-terminated string in an output buffer
  59   based on a Null-terminated format string and a VA_LIST argument list.
  60
  61   VSPrint function to process format and place the results in Buffer. Since a
  62   VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
  63   this is the main print working routine.
  64
  65   @param  Buffer      Character buffer to print the results of the parsing
  66                       of Format into.
  67   @param  BufferSize  Maximum number of characters to put into buffer.
  68   @param  Flags       Intial flags value.
  69                       Can only have FORMAT_UNICODE and OUTPUT_UNICODE set.
  70   @param  Format      Null-terminated format string.
  71   @param  Marker      Vararg list consumed by processing Format.
  72
  73   @return Number of characters printed not including the Null-terminator.
  74
  75 **/
  76 UINTN
  77 BasePrintLibVSPrint (
  78   OUT CHAR8        *Buffer,
  79   IN  UINTN        BufferSize,
  80   IN  UINTN        Flags,
  81   IN  CONST CHAR8  *Format,
  82   IN  VA_LIST      Marker
  83   );
  84
  85 /**
  86   Worker function that produces a Null-terminated string in an output buffer
  87   based on a Null-terminated format string and variable argument list.
  88
  89   VSPrint function to process format and place the results in Buffer. Since a
  90   VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
  91   this is the main print working routine
  92
  93   @param  Buffer        Character buffer to print the results of the parsing
  94                         of Format into.
  95   @param  BufferSize    Maximum number of characters to put into buffer.
  96                         Zero means no limit.
  97   @param  Flags         Intial flags value.
  98                         Can only have FORMAT_UNICODE and OUTPUT_UNICODE set
  99   @param  FormatString  Null-terminated format string.
 100
 101   @return Number of characters printed.
 102
 103 **/
 104 UINTN
 105 BasePrintLibSPrint (
 106   OUT CHAR8        *Buffer,
 107   IN  UINTN        BufferSize,
 108   IN  UINTN        Flags,
 109   IN  CONST CHAR8  *FormatString,
 110   ...
 111   );
 112
 113 /**
 114   Internal function that places the character into the Buffer.
 115
 116   Internal function that places ASCII or Unicode character into the Buffer.
 117
 118   @param  Buffer      Buffer to place the Unicode or ASCII string.
 119   @param  EndBuffer   The end of the input Buffer. No characters will be
 120                       placed after that.
 121   @param  Length      Count of character to be placed into Buffer.
 122   @param  Character   Character to be placed into Buffer.
 123   @param  Increment   Character increment in Buffer.
 124
 125   @return Number of characters printed.
 126
 127 **/
 128 CHAR8 *
 129 BasePrintLibFillBuffer (
 130   CHAR8   *Buffer,
 131   CHAR8   *EndBuffer,
 132   INTN    Length,
 133   UINTN   Character,
 134   INTN    Increment
 135   );
 136
 137 /**
 138   Internal function that convert a decimal number to a string in Buffer.
 139
 140   Print worker function that convert a decimal number to a string in Buffer.
 141
 142   @param  Buffer    Location to place the Unicode or ASCII string of Value.
 143   @param  Value     Value to convert to a Decimal or Hexidecimal string in Buffer.
 144   @param  Radix     Radix of the value
 145
 146   @return Number of characters printed.
 147
 148 **/
 149 UINTN
 150 EFIAPI
 151 BasePrintLibValueToString (
 152   IN OUT CHAR8  *Buffer,
 153   IN INT64      Value,
 154   IN UINTN      Radix
 155   );
 156
 157 /**
 158   Internal function that converts a decimal value to a Null-terminated string.
 159
 160   Converts the decimal number specified by Value to a Null-terminated
 161   string specified by Buffer containing at most Width characters.
 162   If Width is 0 then a width of  MAXIMUM_VALUE_CHARACTERS is assumed.
 163   The total number of characters placed in Buffer is returned.
 164   If the conversion contains more than Width characters, then only the first
 165   Width characters are returned, and the total number of characters
 166   required to perform the conversion is returned.
 167   Additional conversion parameters are specified in Flags.
 168   The Flags bit LEFT_JUSTIFY is always ignored.
 169   All conversions are left justified in Buffer.
 170   If Width is 0, PREFIX_ZERO is ignored in Flags.
 171   If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas
 172   are inserted every 3rd digit starting from the right.
 173   If Value is < 0, then the fist character in Buffer is a '-'.
 174   If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored,
 175   then Buffer is padded with '0' characters so the combination of the optional '-'
 176   sign character, '0' characters, digit characters for Value, and the Null-terminator
 177   add up to Width characters.
 178
 179   If Buffer is NULL, then ASSERT().
 180   If unsupported bits are set in Flags, then ASSERT().
 181   If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()
 182
 183   @param  Buffer    Pointer to the output buffer for the produced Null-terminated
 184                     string.
 185   @param  Flags     The bitmask of flags that specify left justification, zero pad,
 186                     and commas.
 187   @param  Value     The 64-bit signed value to convert to a string.
 188   @param  Width     The maximum number of characters to place in Buffer, not including
 189                     the Null-terminator.
 190   @param  Increment Character increment in Buffer.
 191
 192   @return Total number of characters required to perform the conversion.
 193
 194 **/
 195 UINTN
 196 BasePrintLibConvertValueToString (
 197   IN OUT CHAR8   *Buffer,
 198   IN UINTN       Flags,
 199   IN INT64       Value,
 200   IN UINTN       Width,
 201   IN UINTN       Increment
 202   );
 203
 204 #endif