StdLib/Include/sys/_ctype.h

   1 /** @file
   2   Implementation specific support for Single-byte character classification and
   3   case conversion macros and function declarations.
   4
   5   This file is intended to only be included by <ctype.h>.
   6
   7   Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
   8   This program and the accompanying materials are licensed and made available under
   9   the terms and conditions of the BSD License that accompanies this distribution.
  10   The full text of the license may be found at
  11   http://opensource.org/licenses/bsd-license.
  12
  13   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  14   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  15
  16 **/
  17 #ifndef _CTYPE_H
  18 #error  This file, <sys/_ctype.h>, may only be included by <ctype.h>.
  19 #endif
  20
  21 __BEGIN_DECLS
  22 extern const UINT16 *_cClass;  // Locale independent pointer to Character Classification Table
  23 extern const UINT8  *_uConvT;  // Locale independent pointer to Lowercase to Uppercase Conversion Table
  24 extern const UINT8  *_lConvT;  // Locale independent pointer to Uppercase to Lowercase Conversion Table
  25
  26 extern  int  __isCClass( int _c, unsigned int mask);   // Internal character classification function
  27 __END_DECLS
  28
  29
  30 // Character Class bit masks
  31 #define _CC   0x0001U     // Control Characters
  32 #define _CW   0x0002U     // White Space
  33 #define _CP   0x0004U     // Punctuation
  34 #define _CD   0x0008U     // Digits [0-9]
  35 #define _CU   0x0010U     // Uppercase Letter [A-Z]
  36 #define _CL   0x0020U     // Lowercase Letter [a-z]
  37 #define _CX   0x0040U     // Hexadecimal Digits [A-Fa-f]
  38 #define _C0   0x0080U
  39 #define _CS   0x0100U     // Space Characters, ' ' in C locale
  40 #define _CG   0x0200U     // Graphic Characters
  41 #define _CB   0x0400U     // Blank Characters, ' ' and '\t' in C locale
  42 #define _C4   0x0800U
  43 #define _XA   0x1000U     // eXtra Alpha characters not in _CU or _CL
  44 #define _C6   0x2000U
  45 #define _C7   0x4000U
  46 #define _C8   0x8000U
  47
  48 #ifndef NO_CTYPE_MACROS
  49   #define __isCClass( _c, mask)   (((_c) < 0 || (_c) > 127) ? 0 : (_cClass[(_c)] & (mask)))
  50   #define __toLower( _c)          ((__isCClass( ((int)_c), (_CU))) ? _lConvT[(_c)] : (_c))
  51   #define __toUpper( _c)          ((__isCClass( ((int)_c), (_CL))) ? _uConvT[(_c)] : (_c))
  52 #endif  /* NO_CTYPE_MACROS */
  53
  54 /* Macros used by implementation functions */
  55 #define __isHexLetter(_c)         (__isCClass( (int)c, (_CX)))
  56
  57 #ifdef _CTYPE_PRIVATE
  58   #define _CTYPE_NUM_CHARS  (256)
  59
  60   #define _CTYPE_ID   "BSDCTYPE"
  61   #define _CTYPE_REV    2
  62
  63   extern const UINT16  _C_CharClassTable[];
  64   extern const UINT8   _C_ToUpperTable[];
  65   extern const UINT8   _C_ToLowerTable[];
  66 #endif