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/* This file is part of GSC
Copyright (C) 2007 Sergey Poznyakoff
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include "gsc.h"
static int
time_multiplier (const char *str, unsigned *m, unsigned *plen)
{
static struct timetab
{
char *name;
unsigned mul;
} tab[] = {
{ "seconds", 1 },
{ "minutes", 60 },
{ "hours", 60*60 },
{ "days", 24*60*60 },
{ "weeks", 7*24*60*60 },
{ "months", 31*7*24*60*60 },
{ NULL }
};
struct timetab *p;
int slen;
for (slen = 0; str[slen]; slen++)
if (isspace (str[slen]))
break;
for (p = tab; p->name; p++)
{
if (p->name[0] == tolower (str[0]))
{
int nlen = strlen (p->name);
if (nlen > slen)
nlen = slen;
if (strncasecmp (p->name, str, nlen) == 0)
{
*m = p->mul;
if (plen)
*plen = nlen;
return 0;
}
}
}
return 1;
}
int
parse_time_interval (const char *str, time_t *pint, const char **endp)
{
int rc = 0;
time_t interval = 0;
while (*str)
{
char *p;
unsigned long n;
unsigned mul, len;
while (*str && isspace (*str))
str++;
if (!isdigit (*str) && time_multiplier (str, &mul, &len) == 0)
{
n = 1;
str += len;
}
else
{
n = strtoul (str, &p, 10);
if (*p && !isspace (*p))
{
str = p;
rc = 1;
break;
}
while (*p && isspace (*p))
p++;
str = p;
if (*str)
{
if (rc = time_multiplier (str, &mul, &len))
break;
str += len;
}
else
mul = 1;
}
interval += n * mul;
}
if (rc && endp)
*endp = str;
*pint = interval;
return rc;
}
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