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/* ----------------------------------------------------------------------- *
*
* Copyright 1996-2018 The NASM Authors - All Rights Reserved
* See the file AUTHORS included with the NASM distribution for
* the specific copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ----------------------------------------------------------------------- */
/*
* ctype-like functions specific to NASM
*/
#ifndef NASM_NCTYPE_H
#define NASM_NCTYPE_H
#include "compiler.h"
void nasm_ctype_init(void);
extern unsigned char nasm_tolower_tab[256];
static inline char nasm_tolower(char x)
{
return nasm_tolower_tab[(unsigned char)x];
}
/*
* NASM ctype table
*/
enum nasm_ctype {
NCT_CTRL = 0x0001,
NCT_SPACE = 0x0002,
NCT_ASCII = 0x0004,
NCT_LOWER = 0x0008, /* isalpha(x) && tolower(x) == x */
NCT_UPPER = 0x0010, /* isalpha(x) && tolower(x) != x */
NCT_DIGIT = 0x0020,
NCT_HEX = 0x0040,
NCT_ID = 0x0080,
NCT_IDSTART = 0x0100,
NCT_MINUS = 0x0200, /* - */
NCT_DOLLAR = 0x0400, /* $ */
NCT_UNDER = 0x0800, /* _ */
NCT_QUOTE = 0x1000 /* " ' ` */
};
extern uint16_t nasm_ctype_tab[256];
static inline bool nasm_ctype(unsigned char x, enum nasm_ctype mask)
{
return (nasm_ctype_tab[x] & mask) != 0;
}
static inline bool nasm_isspace(char x)
{
return nasm_ctype(x, NCT_SPACE);
}
static inline bool nasm_isalpha(char x)
{
return nasm_ctype(x, NCT_LOWER|NCT_UPPER);
}
static inline bool nasm_isdigit(char x)
{
return nasm_ctype(x, NCT_DIGIT);
}
static inline bool nasm_isalnum(char x)
{
return nasm_ctype(x, NCT_LOWER|NCT_UPPER|NCT_DIGIT);
}
static inline bool nasm_isxdigit(char x)
{
return nasm_ctype(x, NCT_HEX);
}
static inline bool nasm_isidstart(char x)
{
return nasm_ctype(x, NCT_IDSTART);
}
static inline bool nasm_isidchar(char x)
{
return nasm_ctype(x, NCT_ID);
}
static inline bool nasm_isbrcchar(char x)
{
return nasm_ctype(x, NCT_ID|NCT_MINUS);
}
static inline bool nasm_isnumstart(char x)
{
return nasm_ctype(x, NCT_DIGIT|NCT_DOLLAR);
}
static inline bool nasm_isnumchar(char x)
{
return nasm_ctype(x, NCT_DIGIT|NCT_LOWER|NCT_UPPER|NCT_UNDER);
}
static inline bool nasm_isquote(char x)
{
return nasm_ctype(x, NCT_QUOTE);
}
static inline void nasm_ctype_tasm_mode(void)
{
/* No differences at the present moment */
}
#endif /* NASM_NCTYPE_H */
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