You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
152 lines
4.3 KiB
152 lines
4.3 KiB
/***
|
|
*mbstok.c - Break string into tokens (MBCS)
|
|
*
|
|
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
|
|
*
|
|
*Purpose:
|
|
* Break string into tokens (MBCS)
|
|
*
|
|
*Revision History:
|
|
* 11-19-92 KRS Ported from 16-bit sources.
|
|
* 12-04-92 KRS Added MTHREAD support.
|
|
* 02-17-93 GJF Changed for new _getptd().
|
|
* 07-14-93 KRS Fix: all references should be to _mtoken, not _token.
|
|
* 09-27-93 CFW Remove Cruiser support.
|
|
* 10-06-93 GJF Replaced _CRTAPI1 with __cdecl, MTHREAD with _MT.
|
|
* 04-15-93 CFW Add _MB_CP_LOCK.
|
|
* 05-09-94 CFW Optimize for SBCS.
|
|
* 05-19-94 CFW Enable non-Win32.
|
|
* 09-11-97 GJF Replaced __mbcodepage == 0 with _ISNOTMBCP.
|
|
* 04-21-98 GJF Revised multithread support based on threadmbcinfo
|
|
* structs
|
|
*
|
|
*******************************************************************************/
|
|
|
|
#ifdef _MBCS
|
|
|
|
#include <mtdll.h>
|
|
#include <cruntime.h>
|
|
#include <string.h>
|
|
#include <mbdata.h>
|
|
#include <mbctype.h>
|
|
#include <mbstring.h>
|
|
#include <stddef.h>
|
|
|
|
/***
|
|
* _mbstok - Break string into tokens (MBCS)
|
|
*
|
|
*Purpose:
|
|
* strtok considers the string to consist of a sequence of zero or more
|
|
* text tokens separated by spans of one or more control chars. the first
|
|
* call, with string specified, returns a pointer to the first char of the
|
|
* first token, and will write a null char into string immediately
|
|
* following the returned token. subsequent calls with zero for the first
|
|
* argument (string) will work thru the string until no tokens remain. the
|
|
* control string may be different from call to call. when no tokens remain
|
|
* in string a NULL pointer is returned. remember the control chars with a
|
|
* bit map, one bit per ascii char. the null char is always a control char.
|
|
*
|
|
* MBCS chars supported correctly.
|
|
*
|
|
*Entry:
|
|
* char *string = string to break into tokens.
|
|
* char *sepset = set of characters to use as seperators
|
|
*
|
|
*Exit:
|
|
* returns pointer to token, or NULL if no more tokens
|
|
*
|
|
*Exceptions:
|
|
*
|
|
*******************************************************************************/
|
|
|
|
unsigned char * __cdecl _mbstok(
|
|
unsigned char * string,
|
|
const unsigned char * sepset
|
|
)
|
|
{
|
|
unsigned char *nextsep;
|
|
#ifdef _MT
|
|
_ptiddata ptd = _getptd();
|
|
unsigned char *nextoken;
|
|
pthreadmbcinfo ptmbci;
|
|
|
|
if ( (ptmbci = ptd->ptmbcinfo) != __ptmbcinfo )
|
|
ptmbci = __updatetmbcinfo();
|
|
|
|
if ( _ISNOTMBCP_MT(ptmbci) )
|
|
#else /* _MT */
|
|
static unsigned char *nextoken;
|
|
|
|
if ( _ISNOTMBCP )
|
|
#endif /* _MT */
|
|
return strtok(string, sepset);
|
|
|
|
/* init start of scan */
|
|
|
|
if (string)
|
|
nextoken = string;
|
|
else
|
|
/* If string==NULL, continue with previous string */
|
|
{
|
|
|
|
#ifdef _MT
|
|
nextoken = ptd->_mtoken;
|
|
#endif /* _MT */
|
|
|
|
if (!nextoken)
|
|
return NULL;
|
|
}
|
|
|
|
/* skip over lead seperators */
|
|
|
|
#ifdef _MT
|
|
if ( (string = __mbsspnp_mt(ptmbci, nextoken, sepset)) == NULL )
|
|
#else
|
|
if ( (string = _mbsspnp(nextoken, sepset)) == NULL )
|
|
#endif
|
|
return(NULL);
|
|
|
|
|
|
/* test for end of string */
|
|
|
|
if ( (*string == '\0') ||
|
|
#ifdef _MT
|
|
((__ismbblead_mt(ptmbci, *string)) && (string[1] == '\0')) )
|
|
#else
|
|
((_ismbblead(*string)) && (string[1] == '\0')) )
|
|
#endif
|
|
return(NULL);
|
|
|
|
|
|
/* find next seperator */
|
|
|
|
#ifdef _MT
|
|
nextsep = __mbspbrk_mt(ptmbci, string, sepset);
|
|
#else
|
|
nextsep = _mbspbrk(string, sepset);
|
|
#endif
|
|
|
|
if ((nextsep == NULL) || (*nextsep == '\0'))
|
|
nextoken = NULL;
|
|
else {
|
|
#ifdef _MT
|
|
if ( __ismbblead_mt(ptmbci, *nextsep) )
|
|
#else
|
|
if ( _ismbblead(*nextsep) )
|
|
#endif
|
|
*nextsep++ = '\0';
|
|
*nextsep = '\0';
|
|
nextoken = ++nextsep;
|
|
}
|
|
|
|
#ifdef _MT
|
|
/* Update the corresponding field in the per-thread data * structure */
|
|
|
|
ptd->_mtoken = nextoken;
|
|
|
|
#endif /* _MT */
|
|
|
|
return(string);
|
|
}
|
|
|
|
#endif /* _MBCS */
|