glibc/timezone/scheck.c

59 lines
1.1 KiB
C
Raw Normal View History

1995-02-18 02:27:10 +01:00
#ifndef lint
#ifndef NOID
static char elsieid[] = "@(#)scheck.c 8.17";
1995-02-18 02:27:10 +01:00
#endif /* !defined lint */
#endif /* !defined NOID */
/*LINTLIBRARY*/
#include "private.h"
const char *
1995-02-18 02:27:10 +01:00
scheck(string, format)
const char * const string;
const char * const format;
1995-02-18 02:27:10 +01:00
{
register char * fbuf;
register const char * fp;
register char * tp;
register int c;
register const char * result;
1995-02-18 02:27:10 +01:00
char dummy;
result = "";
1995-02-18 02:27:10 +01:00
if (string == NULL || format == NULL)
return result;
fbuf = imalloc((int) (2 * strlen(format) + 4));
if (fbuf == NULL)
return result;
fp = format;
tp = fbuf;
while ((*tp++ = c = *fp++) != '\0') {
if (c != '%')
continue;
if (*fp == '%') {
*tp++ = *fp++;
continue;
}
*tp++ = '*';
if (*fp == '*')
++fp;
while (is_digit(*fp))
1995-02-18 02:27:10 +01:00
*tp++ = *fp++;
if (*fp == 'l' || *fp == 'h')
*tp++ = *fp++;
else if (*fp == '[')
do *tp++ = *fp++;
while (*fp != '\0' && *fp != ']');
if ((*tp++ = *fp++) == '\0')
break;
}
*(tp - 1) = '%';
*tp++ = 'c';
*tp = '\0';
if (sscanf(string, fbuf, &dummy) != 1)
result = (char *) format;
ifree(fbuf);
return result;
}