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#include <stdlib.h>
char * __cdecl strtok_r (
char * string,
const char * control,
char **nextoken
)
{
unsigned char *str;
const unsigned char *ctrl = (const unsigned char*)control;
unsigned char map[32];
int count;
/* Clear control map */
for (count = 0; count < 32; count++)
map[count] = 0;
/* Set bits in delimiter table */
do {
map[*ctrl >> 3] |= (1 << (*ctrl & 7));
} while (*ctrl++);
/* Initialize str. If string is NULL, set str to the saved
* pointer (i.e., continue breaking tokens out of the string
* from the last strtok call) */
if (string)
str = (unsigned char*)string;
else
str = (unsigned char*)(*nextoken);
/* Find beginning of token (skip over leading delimiters). Note that
* there is no token iff this loop sets str to point to the terminal
* null (*str == '\0') */
while ( (map[*str >> 3] & (1 << (*str & 7))) && *str )
str++;
string = (char*)str;
/* Find the end of the token. If it is not the end of the string,
* put a null there. */
for ( ; *str ; str++ )
if ( map[*str >> 3] & (1 << (*str & 7)) ) {
*str++ = '\0';
break;
}
/* Update nextoken (or the corresponding field in the per-thread data
* structure */
*nextoken = (char*)str;
/* Determine if a token has been found. */
if ( string == (char*)str )
return NULL;
else
return string;
}
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