"Fossies" - the Fresh Open Source Software Archive

Member "mpr-2.8/demangle/safe-ctype.h" (22 Jun 2003, 4384 Bytes) of package /linux/misc/old/mpr-2.8.tar.gz:

    1 /* <ctype.h> replacement macros.
    2 
    3    Copyright (C) 2000, 2001 Free Software Foundation, Inc.
    4    Contributed by Zack Weinberg <zackw@stanford.edu>.
    5 
    6 This file is part of the libiberty library.
    7 Libiberty is free software; you can redistribute it and/or
    8 modify it under the terms of the GNU Library General Public
    9 License as published by the Free Software Foundation; either
   10 version 2 of the License, or (at your option) any later version.
   11 
   12 Libiberty is distributed in the hope that it will be useful,
   13 but WITHOUT ANY WARRANTY; without even the implied warranty of
   14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   15 Library General Public License for more details.
   16 
   17 You should have received a copy of the GNU Library General Public
   18 License along with libiberty; see the file COPYING.LIB.  If
   19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   20 Boston, MA 02111-1307, USA.  */
   21 
   22 /* This is a compatible replacement of the standard C library's <ctype.h>
   23    with the following properties:
   24 
   25    - Implements all isxxx() macros required by C99.
   26    - Also implements some character classes useful when
   27      parsing C-like languages.
   28    - Does not change behavior depending on the current locale.
   29    - Behaves properly for all values in the range of a signed or
   30      unsigned char.
   31 
   32    To avoid conflicts, this header defines the isxxx functions in upper
   33    case, e.g. ISALPHA not isalpha.  */
   34 
   35 #ifndef SAFE_CTYPE_H
   36 #define SAFE_CTYPE_H
   37 
   38 #ifdef isalpha
   39  #error "safe-ctype.h and ctype.h may not be used simultaneously"
   40 #endif
   41 
   42 /* Determine host character set.  */
   43 #define HOST_CHARSET_UNKNOWN 0
   44 #define HOST_CHARSET_ASCII   1
   45 #define HOST_CHARSET_EBCDIC  2
   46 
   47 #if  '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \
   48    && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21
   49 #  define HOST_CHARSET HOST_CHARSET_ASCII
   50 #else
   51 # if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \
   52    && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A
   53 #  define HOST_CHARSET HOST_CHARSET_EBCDIC
   54 # else
   55 #  define HOST_CHARSET HOST_CHARSET_UNKNOWN
   56 # endif
   57 #endif
   58 
   59 /* Categories.  */
   60 
   61 enum {
   62   /* In C99 */
   63   _sch_isblank  = 0x0001,   /* space \t */
   64   _sch_iscntrl  = 0x0002,   /* nonprinting characters */
   65   _sch_isdigit  = 0x0004,   /* 0-9 */
   66   _sch_islower  = 0x0008,   /* a-z */
   67   _sch_isprint  = 0x0010,   /* any printing character including ' ' */
   68   _sch_ispunct  = 0x0020,   /* all punctuation */
   69   _sch_isspace  = 0x0040,   /* space \t \n \r \f \v */
   70   _sch_isupper  = 0x0080,   /* A-Z */
   71   _sch_isxdigit = 0x0100,   /* 0-9A-Fa-f */
   72 
   73   /* Extra categories useful to cpplib.  */
   74   _sch_isidst   = 0x0200,   /* A-Za-z_ */
   75   _sch_isvsp    = 0x0400,   /* \n \r */
   76   _sch_isnvsp   = 0x0800,   /* space \t \f \v \0 */
   77 
   78   /* Combinations of the above.  */
   79   _sch_isalpha  = _sch_isupper|_sch_islower,    /* A-Za-z */
   80   _sch_isalnum  = _sch_isalpha|_sch_isdigit,    /* A-Za-z0-9 */
   81   _sch_isidnum  = _sch_isidst|_sch_isdigit, /* A-Za-z0-9_ */
   82   _sch_isgraph  = _sch_isalnum|_sch_ispunct,    /* isprint and not space */
   83   _sch_iscppsp  = _sch_isvsp|_sch_isnvsp,   /* isspace + \0 */
   84   _sch_isbasic  = _sch_isprint|_sch_iscppsp     /* basic charset of ISO C
   85                            (plus ` and @)  */
   86 };
   87 
   88 /* Character classification.  */
   89 extern const unsigned short _sch_istable[256];
   90 
   91 #define _sch_test(c, bit) (_sch_istable[(c) & 0xff] & (unsigned short)(bit))
   92 
   93 #define ISALPHA(c)  _sch_test(c, _sch_isalpha)
   94 #define ISALNUM(c)  _sch_test(c, _sch_isalnum)
   95 #define ISBLANK(c)  _sch_test(c, _sch_isblank)
   96 #define ISCNTRL(c)  _sch_test(c, _sch_iscntrl)
   97 #define ISDIGIT(c)  _sch_test(c, _sch_isdigit)
   98 #define ISGRAPH(c)  _sch_test(c, _sch_isgraph)
   99 #define ISLOWER(c)  _sch_test(c, _sch_islower)
  100 #define ISPRINT(c)  _sch_test(c, _sch_isprint)
  101 #define ISPUNCT(c)  _sch_test(c, _sch_ispunct)
  102 #define ISSPACE(c)  _sch_test(c, _sch_isspace)
  103 #define ISUPPER(c)  _sch_test(c, _sch_isupper)
  104 #define ISXDIGIT(c) _sch_test(c, _sch_isxdigit)
  105 
  106 #define ISIDNUM(c)  _sch_test(c, _sch_isidnum)
  107 #define ISIDST(c)   _sch_test(c, _sch_isidst)
  108 #define IS_ISOBASIC(c)  _sch_test(c, _sch_isbasic)
  109 #define IS_VSPACE(c)    _sch_test(c, _sch_isvsp)
  110 #define IS_NVSPACE(c)   _sch_test(c, _sch_isnvsp)
  111 #define IS_SPACE_OR_NUL(c)  _sch_test(c, _sch_iscppsp)
  112 
  113 /* Character transformation.  */
  114 extern const unsigned char  _sch_toupper[256];
  115 extern const unsigned char  _sch_tolower[256];
  116 #define TOUPPER(c) _sch_toupper[(c) & 0xff]
  117 #define TOLOWER(c) _sch_tolower[(c) & 0xff]
  118 
  119 #endif /* SAFE_CTYPE_H */