1ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* <ctype.h> replacement macros. 2ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 3ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Copyright (C) 2000, 2001 Free Software Foundation, Inc. 4ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown Contributed by Zack Weinberg <zackw@stanford.edu>. 5ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 6ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownThis file is part of the libiberty library. 7ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownLibiberty is free software; you can redistribute it and/or 8ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownmodify it under the terms of the GNU Library General Public 9ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownLicense as published by the Free Software Foundation; either 10ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownversion 2 of the License, or (at your option) any later version. 11ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 12ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownLibiberty is distributed in the hope that it will be useful, 13ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownbut WITHOUT ANY WARRANTY; without even the implied warranty of 14ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownLibrary General Public License for more details. 16ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 17ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownYou should have received a copy of the GNU Library General Public 18ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownLicense along with libiberty; see the file COPYING.LIB. If 19ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownnot, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 20ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff BrownBoston, MA 02110-1301, USA. */ 21ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 22ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* This is a compatible replacement of the standard C library's <ctype.h> 23ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown with the following properties: 24ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 25ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown - Implements all isxxx() macros required by C99. 26ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown - Also implements some character classes useful when 27ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown parsing C-like languages. 28ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown - Does not change behavior depending on the current locale. 29ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown - Behaves properly for all values in the range of a signed or 30ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown unsigned char. 31ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 32ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown To avoid conflicts, this header defines the isxxx functions in upper 33ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown case, e.g. ISALPHA not isalpha. */ 34ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 35ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#ifndef SAFE_CTYPE_H 36ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define SAFE_CTYPE_H 37ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 38ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Determine host character set. */ 39ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define HOST_CHARSET_UNKNOWN 0 40ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define HOST_CHARSET_ASCII 1 41ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define HOST_CHARSET_EBCDIC 2 42ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 43ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if '\n' == 0x0A && ' ' == 0x20 && '0' == 0x30 \ 44ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown && 'A' == 0x41 && 'a' == 0x61 && '!' == 0x21 45ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define HOST_CHARSET HOST_CHARSET_ASCII 46ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#else 47ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# if '\n' == 0x15 && ' ' == 0x40 && '0' == 0xF0 \ 48ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown && 'A' == 0xC1 && 'a' == 0x81 && '!' == 0x5A 49ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define HOST_CHARSET HOST_CHARSET_EBCDIC 50ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# else 51ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# define HOST_CHARSET HOST_CHARSET_UNKNOWN 52ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown# endif 53ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif 54ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 55ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Categories. */ 56ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 57ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownenum { 58ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* In C99 */ 59ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isblank = 0x0001, /* space \t */ 60ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_iscntrl = 0x0002, /* nonprinting characters */ 61ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isdigit = 0x0004, /* 0-9 */ 62ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_islower = 0x0008, /* a-z */ 63ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isprint = 0x0010, /* any printing character including ' ' */ 64ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_ispunct = 0x0020, /* all punctuation */ 65ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isspace = 0x0040, /* space \t \n \r \f \v */ 66ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isupper = 0x0080, /* A-Z */ 67ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isxdigit = 0x0100, /* 0-9A-Fa-f */ 68ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 69ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Extra categories useful to cpplib. */ 70ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isidst = 0x0200, /* A-Za-z_ */ 71ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isvsp = 0x0400, /* \n \r */ 72ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isnvsp = 0x0800, /* space \t \f \v \0 */ 73ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 74ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown /* Combinations of the above. */ 75ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isalpha = _sch_isupper|_sch_islower, /* A-Za-z */ 76ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isalnum = _sch_isalpha|_sch_isdigit, /* A-Za-z0-9 */ 77ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isidnum = _sch_isidst|_sch_isdigit, /* A-Za-z0-9_ */ 78ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isgraph = _sch_isalnum|_sch_ispunct, /* isprint and not space */ 79ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_iscppsp = _sch_isvsp|_sch_isnvsp, /* isspace + \0 */ 80ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown _sch_isbasic = _sch_isprint|_sch_iscppsp /* basic charset of ISO C 81ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown (plus ` and @) */ 82ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown}; 83ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 84ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Character classification. */ 85ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern const unsigned short _sch_istable[256]; 86ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 87ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define _sch_test(c, bit) (_sch_istable[(c) & 0xff] & (unsigned short)(bit)) 88ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 89ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISALPHA(c) _sch_test(c, _sch_isalpha) 90ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISALNUM(c) _sch_test(c, _sch_isalnum) 91ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISBLANK(c) _sch_test(c, _sch_isblank) 92ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISCNTRL(c) _sch_test(c, _sch_iscntrl) 93ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISDIGIT(c) _sch_test(c, _sch_isdigit) 94ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISGRAPH(c) _sch_test(c, _sch_isgraph) 95ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISLOWER(c) _sch_test(c, _sch_islower) 96ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISPRINT(c) _sch_test(c, _sch_isprint) 97ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISPUNCT(c) _sch_test(c, _sch_ispunct) 98ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISSPACE(c) _sch_test(c, _sch_isspace) 99ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISUPPER(c) _sch_test(c, _sch_isupper) 100ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISXDIGIT(c) _sch_test(c, _sch_isxdigit) 101ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 102ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISIDNUM(c) _sch_test(c, _sch_isidnum) 103ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ISIDST(c) _sch_test(c, _sch_isidst) 104ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define IS_ISOBASIC(c) _sch_test(c, _sch_isbasic) 105ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define IS_VSPACE(c) _sch_test(c, _sch_isvsp) 106ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define IS_NVSPACE(c) _sch_test(c, _sch_isnvsp) 107ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define IS_SPACE_OR_NUL(c) _sch_test(c, _sch_iscppsp) 108ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 109ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Character transformation. */ 110ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern const unsigned char _sch_toupper[256]; 111ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brownextern const unsigned char _sch_tolower[256]; 112ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define TOUPPER(c) _sch_toupper[(c) & 0xff] 113ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define TOLOWER(c) _sch_tolower[(c) & 0xff] 114ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 115ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown/* Prevent the users of safe-ctype.h from accidently using the routines 116ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown from ctype.h. Initially, the approach was to produce an error when 117ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown detecting that ctype.h has been included. But this was causing 118ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown trouble as ctype.h might get indirectly included as a result of 119ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown including another system header (for instance gnulib's stdint.h). 120ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown So we include ctype.h here and then immediately redefine its macros. */ 121ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 122ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#if 0 /* in valgrind */ 123ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#include <ctype.h> 124ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif /* ! in valgrind */ 125ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 126ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isalpha 127ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isalpha(c) do_not_use_isalpha_with_safe_ctype 128ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isalnum 129ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isalnum(c) do_not_use_isalnum_with_safe_ctype 130ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef iscntrl 131ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define iscntrl(c) do_not_use_iscntrl_with_safe_ctype 132ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isdigit 133ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isdigit(c) do_not_use_isdigit_with_safe_ctype 134ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isgraph 135ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isgraph(c) do_not_use_isgraph_with_safe_ctype 136ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef islower 137ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define islower(c) do_not_use_islower_with_safe_ctype 138ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isprint 139ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isprint(c) do_not_use_isprint_with_safe_ctype 140ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef ispunct 141ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define ispunct(c) do_not_use_ispunct_with_safe_ctype 142ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isspace 143ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isspace(c) do_not_use_isspace_with_safe_ctype 144ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isupper 145ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isupper(c) do_not_use_isupper_with_safe_ctype 146ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef isxdigit 147ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define isxdigit(c) do_not_use_isxdigit_with_safe_ctype 148ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef toupper 149ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define toupper(c) do_not_use_toupper_with_safe_ctype 150ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#undef tolower 151ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#define tolower(c) do_not_use_tolower_with_safe_ctype 152ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown 153ed07e00d438c74b7a23c01bfffde77e3968305e4Jeff Brown#endif /* SAFE_CTYPE_H */ 154