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/* -*- Mode: C -*-
======================================================================
FILE: icalperiod.c
CREATOR: eric 02 June 2000
$Id$
$Locker$
(C) COPYRIGHT 2000, Eric Busboom, http://www.softwarestudio.org
This program is free software; you can redistribute it and/or modify
it under the terms of either:
The LGPL as published by the Free Software Foundation, version
2.1, available at: http://www.fsf.org/copyleft/lesser.html
Or:
The Mozilla Public License Version 1.0. You may obtain a copy of
the License at http://www.mozilla.org/MPL/
The Original Code is eric. The Initial Developer of the Original
Code is Eric Busboom
======================================================================*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "icalperiod.h"
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef ICAL_NO_LIBICAL
#define icalerror_set_errno(x)
#define icalerror_check_arg_rv(x,y)
#define icalerror_check_arg_re(x,y,z)
#else
#include "icalerror.h"
#include "icalmemory.h"
#endif
struct icalperiodtype icalperiodtype_from_string (const char* str)
{
struct icalperiodtype p, null_p;
char *s = icalmemory_strdup(str);
char *start, *end = s;
icalerrorstate es;
/* Errors are normally generated in the following code, so save
the error state for resoration later */
icalerrorenum e = icalerrno;
p.start = p.end = icaltime_null_time();
p.duration = icaldurationtype_from_int(0);
null_p = p;
if(s == 0) goto error;
start = s;
end = strchr(s, '/');
if(end == 0) goto error;
*end = 0;
end++;
p.start = icaltime_from_string(start);
if (icaltime_is_null_time(p.start)) goto error;
es = icalerror_get_error_state(ICAL_MALFORMEDDATA_ERROR);
icalerror_set_error_state(ICAL_MALFORMEDDATA_ERROR,ICAL_ERROR_NONFATAL);
p.end = icaltime_from_string(end);
icalerror_set_error_state(ICAL_MALFORMEDDATA_ERROR,es);
if (icaltime_is_null_time(p.end)){
p.duration = icaldurationtype_from_string(end);
if(icaldurationtype_as_int(p.duration) == 0) goto error;
}
icalerrno = e;
return p;
error:
icalerror_set_errno(ICAL_MALFORMEDDATA_ERROR);
return null_p;
}
const char* icalperiodtype_as_ical_string(struct icalperiodtype p)
{
const char* start;
const char* end;
char *buf;
size_t buf_size = 40;
char* buf_ptr = 0;
buf = (char*)icalmemory_new_buffer(buf_size);
buf_ptr = buf;
start = icaltime_as_ical_string(p.start);
icalmemory_append_string(&buf, &buf_ptr, &buf_size, start);
if(!icaltime_is_null_time(p.end)){
end = icaltime_as_ical_string(p.end);
} else {
end = icaldurationtype_as_ical_string(p.duration);
}
icalmemory_append_char(&buf, &buf_ptr, &buf_size, '/');
icalmemory_append_string(&buf, &buf_ptr, &buf_size, end);
return buf;
}
struct icalperiodtype icalperiodtype_null_period() {
struct icalperiodtype p;
p.start = icaltime_null_time();
p.end = icaltime_null_time();
p.duration = icaldurationtype_null_duration();
return p;
}
int icalperiodtype_is_null_period(struct icalperiodtype p){
if(icaltime_is_null_time(p.start) &&
icaltime_is_null_time(p.end) &&
icaldurationtype_is_null_duration(p.duration)){
return 1;
} else {
return 0;
}
}
int icalperiodtype_is_valid_period(struct icalperiodtype p){
if(icaltime_is_valid_time(p.start) &&
(icaltime_is_valid_time(p.end) || icaltime_is_null_time(p.end)) )
{
return 1;
}
return 0;
}
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