/** @file\r
Print Library worker functions.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
+ Copyright (c) 2006 - 2007, Intel Corporation<BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
\r
**/\r
\r
+//\r
+// Include common header file for this module.\r
+//\r
+#include "CommonHeader.h"\r
+\r
#include "PrintLibInternal.h"\r
\r
-static CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};\r
+GLOBAL_REMOVE_IF_UNREFERENCED CONST CHAR8 mHexStr[] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};\r
+\r
+\r
+/**\r
+ Internal function that places the character into the Buffer.\r
+\r
+ Internal function that places ASCII or Unicode character into the Buffer.\r
+\r
+ @param Buffer Buffer to place the Unicode or ASCII string.\r
+ @param EndBuffer The end of the input Buffer. No characters will be\r
+ placed after that. \r
+ @param Length Count of character to be placed into Buffer.\r
+ @param Character Character to be placed into Buffer.\r
+ @param Increment Character increment in Buffer.\r
+\r
+ @return Number of characters printed.\r
\r
+**/\r
CHAR8 *\r
BasePrintLibFillBuffer (\r
CHAR8 *Buffer,\r
+ CHAR8 *EndBuffer,\r
INTN Length,\r
UINTN Character,\r
INTN Increment\r
{\r
INTN Index;\r
\r
- for (Index = 0; Index < Length; Index++) {\r
+ for (Index = 0; Index < Length && Buffer < EndBuffer; Index++) {\r
*Buffer = (CHAR8) Character;\r
*(Buffer + 1) = (CHAR8) (Character >> 8);\r
Buffer += Increment;\r
}\r
\r
/**\r
- Print worker function that prints a Value as a decimal number in Buffer.\r
+ Internal function that convert a decimal number to a string in Buffer.\r
\r
- @param Buffer Location to place the Unicode or ASCII string of Value.\r
- \r
- @param Value Value to convert to a Decimal or Hexidecimal string in Buffer.\r
- \r
- @param Flags Flags to use in printing string, see file header for details.\r
- \r
- @param Precision Minimum number of digits to return in the ASCII string\r
+ Print worker function that convert a decimal number to a string in Buffer.\r
+\r
+ @param Buffer Location to place the Unicode or ASCII string of Value.\r
+ @param Value Value to convert to a Decimal or Hexidecimal string in Buffer.\r
+ @param Radix Radix of the value\r
\r
@return Number of characters printed.\r
\r
return Digits;\r
}\r
\r
+/**\r
+ Internal function that converts a decimal value to a Null-terminated string.\r
+ \r
+ Converts the decimal number specified by Value to a Null-terminated \r
+ string specified by Buffer containing at most Width characters.\r
+ If Width is 0 then a width of MAXIMUM_VALUE_CHARACTERS is assumed.\r
+ The number of characters in Buffer is returned not including the Null-terminator.\r
+ If the conversion contains more than Width characters, then only the first\r
+ Width characters are returned, and the total number of characters \r
+ required to perform the conversion is returned.\r
+ Additional conversion parameters are specified in Flags. \r
+ The Flags bit LEFT_JUSTIFY is always ignored.\r
+ All conversions are left justified in Buffer.\r
+ If Width is 0, PREFIX_ZERO is ignored in Flags.\r
+ If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas\r
+ are inserted every 3rd digit starting from the right.\r
+ If HEX_RADIX is set in Flags, then the output buffer will be formatted in hexadecimal format.\r
+ If Value is < 0 and HEX_RADIX is not set in Flags, then the fist character in Buffer is a '-'.\r
+ If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, \r
+ then Buffer is padded with '0' characters so the combination of the optional '-' \r
+ sign character, '0' characters, digit characters for Value, and the Null-terminator\r
+ add up to Width characters.\r
+ If both COMMA_TYPE and HEX_RADIX are set in Flags, then ASSERT().\r
+\r
+ If Buffer is NULL, then ASSERT().\r
+ If unsupported bits are set in Flags, then ASSERT().\r
+ If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()\r
+\r
+ @param Buffer Pointer to the output buffer for the produced Null-terminated\r
+ string.\r
+ @param Flags The bitmask of flags that specify left justification, zero pad,\r
+ and commas.\r
+ @param Value The 64-bit signed value to convert to a string.\r
+ @param Width The maximum number of characters to place in Buffer, not including\r
+ the Null-terminator.\r
+ @param Increment Character increment in Buffer.\r
+ \r
+ @return The number of characters in Buffer not including the Null-terminator.\r
+\r
+**/\r
UINTN\r
BasePrintLibConvertValueToString (\r
IN OUT CHAR8 *Buffer,\r
)\r
{\r
CHAR8 *OriginalBuffer;\r
+ CHAR8 *EndBuffer;\r
CHAR8 ValueBuffer[MAXIMUM_VALUE_CHARACTERS];\r
UINTN Count;\r
UINTN Digits;\r
UINTN Index;\r
+ UINTN Radix;\r
+\r
+ ASSERT (Buffer != NULL);\r
+ ASSERT (Width < MAXIMUM_VALUE_CHARACTERS);\r
+ //\r
+ // Make sure Flags can only contain supported bits.\r
+ //\r
+ ASSERT ((Flags & ~(LEFT_JUSTIFY | COMMA_TYPE | PREFIX_ZERO | RADIX_HEX)) == 0);\r
+\r
+ //\r
+ // If both COMMA_TYPE and HEX_RADIX are set, then ASSERT ()\r
+ //\r
+ ASSERT (((Flags & COMMA_TYPE) != 0 && (Flags & RADIX_HEX) != 0) == FALSE);\r
\r
OriginalBuffer = Buffer;\r
\r
Flags &= (~PREFIX_ZERO);\r
}\r
\r
- if (Width == 0 || Width > (MAXIMUM_VALUE_CHARACTERS - 1)) {\r
+ if (Width == 0) {\r
Width = MAXIMUM_VALUE_CHARACTERS - 1;\r
}\r
+ //\r
+ // Set the tag for the end of the input Buffer.\r
+ //\r
+ EndBuffer = Buffer + Width * Increment;\r
\r
- if (Value < 0) {\r
+ if ((Value < 0) && ((Flags & RADIX_HEX) == 0)) {\r
Value = -Value;\r
- Buffer = BasePrintLibFillBuffer (Buffer, 1, '-', Increment);\r
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, '-', Increment);\r
+ Width--;\r
}\r
\r
- Count = BasePrintLibValueToString (ValueBuffer, Value, 10);\r
+ Radix = ((Flags & RADIX_HEX) == 0)? 10 : 16;\r
+ Count = BasePrintLibValueToString (ValueBuffer, Value, Radix);\r
\r
if ((Flags & PREFIX_ZERO) != 0) {\r
- Buffer = BasePrintLibFillBuffer (Buffer, Width - Count, '0', Increment);\r
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, Width - Count, '0', Increment);\r
}\r
\r
- Digits = 3 - (Count % 3);\r
+ Digits = Count % 3;\r
+ if (Digits != 0) {\r
+ Digits = 3 - Digits;\r
+ }\r
for (Index = 0; Index < Count; Index++) {\r
- Buffer = BasePrintLibFillBuffer (Buffer, 1, ValueBuffer[Count - Index], Increment);\r
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, ValueBuffer[Count - Index], Increment);\r
if ((Flags & COMMA_TYPE) != 0) {\r
Digits++;\r
if (Digits == 3) {\r
Digits = 0;\r
if ((Index + 1) < Count) {\r
- Buffer = BasePrintLibFillBuffer (Buffer, 1, ',', Increment);\r
+ Buffer = BasePrintLibFillBuffer (Buffer, EndBuffer, 1, ',', Increment);\r
}\r
}\r
}\r
}\r
\r
- Buffer = BasePrintLibFillBuffer (Buffer, 1, 0, Increment);\r
+ BasePrintLibFillBuffer (Buffer, EndBuffer + Increment, 1, 0, Increment);\r
\r
return ((Buffer - OriginalBuffer) / Increment);\r
}\r
+\r
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