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New field snprintf() in CHARSET_INFO structure

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This commit is contained in:
bar@bar.mysql.r18.ru
2002-11-10 16:14:39 +04:00
parent 9567611577
commit abd3427150
16 changed files with 234 additions and 38 deletions
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64
strings/ctype-simple.c
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@ -15,8 +15,11 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <my_global.h>
#include "my_sys.h"
#include "m_ctype.h"
#include "m_string.h"
#include "dbug.h"
#include "stdarg.h"
#include "assert.h"
int my_strnxfrm_simple(CHARSET_INFO * cs,
@ -120,6 +123,67 @@ int my_wc_mb_8bit(CHARSET_INFO *cs,my_wc_t wc,
}
static int my_vsnprintf_8bit(char *to, size_t n, const char* fmt, va_list ap)
{
char *start=to, *end=to+n-1;
for (; *fmt ; fmt++)
{
if (fmt[0] != '%')
{
if (to == end) /* End of buffer */
break;
*to++= *fmt; /* Copy ordinary char */
continue;
}
/* Skip if max size is used (to be compatible with printf) */
fmt++;
while (my_isdigit(system_charset_info,*fmt) || *fmt == '.' || *fmt == '-')
fmt++;
if (*fmt == 'l')
fmt++;
if (*fmt == 's') /* String parameter */
{
reg2 char *par = va_arg(ap, char *);
uint plen,left_len = (uint)(end-to);
if (!par) par = (char*)"(null)";
plen = (uint) strlen(par);
if (left_len <= plen)
plen = left_len - 1;
to=strnmov(to,par,plen);
continue;
}
else if (*fmt == 'd' || *fmt == 'u') /* Integer parameter */
{
register int iarg;
if ((uint) (end-to) < 16)
break;
iarg = va_arg(ap, int);
if (*fmt == 'd')
to=int10_to_str((long) iarg,to, -10);
else
to=int10_to_str((long) (uint) iarg,to,10);
continue;
}
/* We come here on '%%', unknown code or too long parameter */
if (to == end)
break;
*to++='%'; /* % used as % or unknown code */
}
DBUG_ASSERT(to <= end);
*to='\0'; /* End of errmessage */
return (uint) (to - start);
}
int my_snprintf_8bit(CHARSET_INFO *cs __attribute__((unused)),
char* to, uint n, const char* fmt, ...)
{
va_list args;
va_start(args,fmt);
return my_vsnprintf_8bit(to, n, fmt, args);
}
#ifndef NEW_HASH_FUNCTION