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/*
NSConcreteTimeZoneDetail.m
Copyright (C) 1995, 1996 Ovidiu Predescu and Mircea Oancea.
All rights reserved.
Author: Mircea Oancea <mircea@jupiter.elcom.pub.ro>
Ovidiu Predescu <ovidiu@bx.logicnet.ro>
This file is part of libFoundation.
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.
We disclaim all warranties with regard to this software, including all
implied warranties of merchantability and fitness, in no event shall
we be liable for any special, indirect or consequential damages or any
damages whatsoever resulting from loss of use, data or profits, whether in
an action of contract, negligence or other tortious action, arising out of
or in connection with the use or performance of this software.
*/
#include <Foundation/common.h>
#include <Foundation/NSString.h>
#include <Foundation/NSArray.h>
#include <Foundation/NSDictionary.h>
#include <Foundation/NSString.h>
#include <Foundation/NSScanner.h>
#include <Foundation/NSCoder.h>
#include "NSConcreteTimeZoneDetail.h"
@implementation NSConcreteTimeZoneDetail
+ detailFromPropertyList:(id)propList name:(NSString*)_name
{
id abbrev = [propList objectForKey:@"abbrev"];
int offset = [self _offsetFromString:[propList objectForKey:@"offset"]];
BOOL _isDST = [[propList objectForKey:@"isDST"] isEqual:@"1"];
return [[[self alloc]
initWithAbbreviation:abbrev
secondsFromGMT:offset
isDaylightSaving:_isDST
name:_name]
autorelease];
}
- initWithAbbreviation:(NSString*)anAbbreviation
secondsFromGMT:(int)aDifference
isDaylightSaving:(BOOL)aDst
name:(NSString*)_name
{
[super init];
abbreviation = [anAbbreviation retain];
name = [_name retain];
offsetFromGMT = aDifference;
isDST = aDst;
return self;
}
- (void)dealloc
{
[abbreviation release];
[super dealloc];
}
- (id)copyWithZone:(NSZone*)zone
{
if ([self zone] == zone)
return [self retain];
return [[[self class] alloc]
initWithAbbreviation:abbreviation
secondsFromGMT:offsetFromGMT
isDaylightSaving:isDST
name:name];
}
- (BOOL)isDaylightSavingTimeZone { return isDST; }
- (NSString*)timeZoneAbbreviation { return abbreviation; }
- (NSString*)name { return name; }
- (int)timeZoneSecondsFromGMT { return offsetFromGMT; }
- (NSString*)timeZoneName { return name; }
- (NSArray*)timeZoneDetailArray { return nil; }
- (NSTimeZoneDetail*)timeZoneDetailForDate:(NSDate*)date { return self; }
- (NSString*)description
{
int offset = abs(offsetFromGMT);
int hours = offset / 3600;
int minutes = (offset - 3600 * hours) / 60;
int seconds = (offset - 3600 * hours - 60 * minutes);
return [NSString stringWithFormat:@"%@ %c%02d:%02d:%02d",
abbreviation,
offsetFromGMT < 0 ? '-' : '+',
hours,
minutes,
seconds];
}
+ (int)_offsetFromString:(NSString*)string
{
NSScanner* scanner = [NSScanner scannerWithString:string];
int hours, minutes, seconds, offset;
BOOL isNegative, errors = NO;
if ([scanner scanInt:&hours]
&& [scanner scanString:@":" intoString:NULL]
&& [scanner scanInt:&minutes]
&& [scanner scanString:@":" intoString:NULL]
&& [scanner scanInt:&seconds]) {
isNegative = (hours < 0);
hours = abs(hours);
if (hours < 0 || hours > 23) {
NSLog (@"Hours should be between 0 and 23 in '%@'", string);
errors = YES;
}
if (minutes < 0 || minutes > 59) {
NSLog (@"Minutes should be between 0 and 59 in '%@'", string);
errors = YES;
}
if (seconds < 0 || seconds > 59) {
NSLog (@"Seconds should be between 0 and 59 in '%@'", string);
errors = YES;
}
if (errors)
return 0;
offset = 3600 * hours + 60 * minutes + seconds;
return isNegative ? -offset : offset;
}
else {
NSLog (@"Cannot parse offset definition '%@'", string);
return 0;
}
}
@end /* NSConcreteTimeZoneDetail */
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