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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.
*
* ----------------------------------------------------------------------- */
#include "nctype.h"
#include <ctype.h>
/*
* Table of tolower() results. This avoids function calls
* on some platforms.
*/
unsigned char nasm_tolower_tab[256];
static void tolower_tab_init(void)
{
int i;
for (i = 0; i < 256; i++)
nasm_tolower_tab[i] = tolower(i);
}
/*
* Table of character type flags; some are simply <ctype.h>,
* some are NASM-specific.
*/
uint16_t nasm_ctype_tab[256];
#if !defined(HAVE_ISCNTRL) && !defined(iscntrl)
# define iscntrl(x) ((x) < 32)
#endif
#if !defined(HAVE_ISASCII) && !defined(isascii)
# define isascii(x) ((x) < 128)
#endif
static void ctype_tab_init(void)
{
int i;
for (i = 0; i < 256; i++) {
enum nasm_ctype ct = 0;
if (iscntrl(i))
ct |= NCT_CTRL;
if (isascii(i))
ct |= NCT_ASCII;
if (isspace(i) && i != '\n')
ct |= NCT_SPACE;
if (isalpha(i)) {
ct |= (nasm_tolower(i) == i) ? NCT_LOWER : NCT_UPPER;
ct |= NCT_ID|NCT_IDSTART;
}
if (isdigit(i))
ct |= NCT_DIGIT|NCT_ID;
if (isxdigit(i))
ct |= NCT_HEX;
/* Non-ASCII character, but no ctype returned (e.g. Unicode) */
if (!ct && !ispunct(i))
ct |= NCT_ID|NCT_IDSTART;
nasm_ctype_tab[i] = ct;
}
nasm_ctype_tab['-'] |= NCT_MINUS;
nasm_ctype_tab['$'] |= NCT_DOLLAR|NCT_ID;
nasm_ctype_tab['_'] |= NCT_UNDER|NCT_ID|NCT_IDSTART;
nasm_ctype_tab['.'] |= NCT_ID|NCT_IDSTART;
nasm_ctype_tab['@'] |= NCT_ID|NCT_IDSTART;
nasm_ctype_tab['?'] |= NCT_ID|NCT_IDSTART;
nasm_ctype_tab['#'] |= NCT_ID;
nasm_ctype_tab['~'] |= NCT_ID;
nasm_ctype_tab['\''] |= NCT_QUOTE;
nasm_ctype_tab['\"'] |= NCT_QUOTE;
nasm_ctype_tab['`'] |= NCT_QUOTE;
}
void nasm_ctype_init(void)
{
tolower_tab_init();
ctype_tab_init();
}
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