PBDate.m
#import "Aprica.h"
// Aprica2
// copyright Pirmin Braun 1997-2007 - pirmin@pirmin.de
// all Rights reserved;
#define DAYS -1
#define WORKDAYS 0
#define MONTHS 1
#define YEARS 2
#define QUARTERS 3
#define WEEKS 4
#define EXACT -1
#define FIRST 0
#define LAST 1
@implementation PBDate
- (void)erster;
{long l = [self dateAsLong]/100;
l *=100;
[self setLong:l+1]; //1. des Monats
}
- (void)ensureWorkday;
{//sa u. so ueberspringen
if([self weekday]==6){[self addDay:2];
return;
}
if([self weekday]==0){[self addDay:1];
return;
}
}
- (BOOL)isWorkday;
{int wd = [self weekday];
if(wd == 6)return NO;
if(wd == 0)return NO;
return (![_APP isFeiertag:[self dateAsDBString]]);
}
- (int)age;
{// jahre
PBDate *d1;
long l;
d1 = [[PBDate alloc]init];
[d1 setCurrentDay];
l = ([d1 dateAsLong]-[self dateAsLong])/10000;
[d1 release];
return l;
}
- (int)age_days;
{// Tage ###
PBDate *d1;
long l;
d1 = [[PBDate alloc]init];
[d1 setCurrentDay];
l = ([d1 dateAsLong]-[self dateAsLong])/10000;
[d1 release];
return l;
}
- (BOOL)isHistory;
{PBDate *d1;
long l;
d1 = [[PBDate alloc]init];
[d1 setCurrentDay];
l = ([d1 dateAsLong]-[self dateAsLong]);
[d1 release];
return l>0;
}
- (BOOL)isFuture;
{PBDate *d1;
long l;
d1 = [[PBDate alloc]init];
[d1 setCurrentDay];
l = ([d1 dateAsLong]-[self dateAsLong]);
[d1 release];
return l<0;
}
- init
{[super init];
[self clearDate];
monthNames = [[NSArray alloc]initWithObjects:
@"no month",
@"Jan.",
@"Feb.",
@"Mrz.",
@"Apr.",
@"Mai ",
@"Juni",
@"Juli",
@"Aug.",
@"Sep.",
@"Okt.",
@"Nov.",
@"Dez.",
nil];
return self;
}
+ (PBDate *)date; //autoreleased PBDate von heute
{PBDate *_date = [[[PBDate alloc]init]autorelease];
[_date setCurrentDay];
return _date;
}
+ (PBDate *)dateWithFreeString:(NSString *)s; //autoreleased PBDate von freeString
{PBDate *_date = [[[PBDate alloc]init]autorelease];
if([_date setFreeString:s]) return _date;
return nil;
}
+ (PBDate *)dateWithDBString:(NSString *)s; //autoreleased PBDate von DBString
{PBDate *_date;
s = [s normalizedDate];
if(![s intValue])return nil;
_date = [[[PBDate alloc]init]autorelease];
[_date setDBString:s];
return _date;
}
+ (NSString *)dbDeltaFrom:(NSString *)date1 to:(NSString *)date2;
{// liefert sekunden von date1 bis date2; nimmt strings im dbformat entgegen
NSTimeInterval ti;
PBDate *d1 = [PBDate date];
PBDate *d2 = [PBDate date];
[d1 setDBString:date1];
[d2 setDBString:date2];
ti = [[d2 dateAsNSCD] timeIntervalSinceDate:[d1 dateAsNSCD]];
return [NSSWF @"%0f",ti];
}
- (NSString *)monthNameFor:(int)i;
{if(i>0 && i<=12) return [monthNames oai:i];
return EON;
}
- (NSString *)monthName;
{return [monthNames oai:month];
}
- (void)clearDate;
{year = 0; month = 0; day = 0; hour = 0; minute = 0; second=0; dyforw = 0; dwofy =0;
}
- (void)setCurrent
{[self setNSCD:[NSCalendarDate date]];
}
- (void)setCurrentDay
{//auf 00:00:00 stellen
[self setNSCD:[NSCalendarDate date]];
hour = 0; minute = 0; second=0;
}
- (NSString *) timeStringSec; // hh:mm:ss
{return [NSSWF @"%02i:%02i:%02i",hour,minute,second];
}
- (NSString *) timeAsString; // hh:mm
{return [NSSWF @"%02i:%02i",hour,minute];
}
- (NSString *)time; // hhmm
{return [NSSWF @"%02i%02i",hour,minute];
}
- (NSCalendarDate *)dateAsNSCD
{NSCalendarDate *d;
d = [NSCalendarDate dateWithYear:year month:month day:day hour:hour minute:minute second:second timeZone:[NSTimeZone defaultTimeZone]];
return d;
}
- (NSString *)dateFormatted:(NSString *)dateFormat;
{return [[self dateAsNSCD]descriptionWithCalendarFormat:dateFormat];
}
- (void)setNSCD:(NSCalendarDate *)cd;
{[self clearDate];
year = [cd yearOfCommonEra];
month = [cd monthOfYear];
day = [cd dayOfMonth];
hour = [cd hourOfDay];
minute = [cd minuteOfHour];
second = [cd secondOfMinute];
}
- (long)dateAsLong;
{return year * 10000 + month * 100 + day;
}
- (void)setLong:(long)value
{[self clearDate];
day = value % 100;
month = (value / 100) % 100;
year = value / 10000;
}
- (void)setMysqlDBString:(NSString *)value
{// date u. datetime yyyy-mm-dd[ hh:mm:ss]
NSArray *dt = [value componentsSeparatedByString:@" "];
NSArray *substrings = [[dt firstObject] componentsSeparatedByString:@"-"]; //date
[self clearDate];
if([substrings count]==3){year = [(NSString *)[substrings firstObject]intValue];
month = [(NSString *)[substrings oai:1]intValue];
day = [(NSString *)[substrings oai:2]intValue];
}
if([dt count]==2){substrings = [[dt oai:1] componentsSeparatedByString:@":"];
hour = [(NSString *)[substrings firstObject]intValue];
minute = [(NSString *)[substrings oai:1]intValue];
second = [(NSString *)[substrings oai:2]intValue];
}
}
- (NSComparisonResult)compare:(PBDate *)otherDate;
{long l1,l2;
if(!otherDate)return NSOrderedDescending;
l1 = [self dateAsLong];
l2 = [otherDate dateAsLong];
if(l1>l2)return NSOrderedDescending;
if(l2>l1)return NSOrderedAscending;
if(hour > [otherDate hour])return NSOrderedDescending;
if([otherDate hour] > hour)return NSOrderedAscending;
if(minute > [otherDate minute])return NSOrderedDescending;
if([otherDate minute] > minute)return NSOrderedAscending;
if(second > [otherDate second])return NSOrderedDescending;
if([otherDate second] > second)return NSOrderedAscending;
return NSOrderedSame;
}
- (int)deltaDaysTo:(PBDate *)otherDate;
{// von self bis otherDate
NSCalendarDate *d1 = [NSCalendarDate dateWithYear:year month:month day:day hour:0 minute:0 second:0 timeZone:[NSTimeZone defaultTimeZone]];
NSCalendarDate *d2 = [otherDate dateAsNSCD];
NSTimeInterval ti;
ti = [d2 timeIntervalSinceDate:d1];
// LOGS([NSSWF @"d1:%@ d2:%@ ti:%.0f",[d1 descriptionWithCalendarFormat:@"%Y%m%d"],[d2 descriptionWithCalendarFormat:@"%Y%m%d"],ti]));
return [[NSSWF @"%.0f",(ti / 86400.0)]intValue];
}
- (int)deltaWorkDaysTo:(PBDate *)otherDate;
{// von self bis otherDate
PBDate *d1=[PBDate dateWithDBString:[self dateAsDBString]];
long l1 = [d1 dateAsLong];
long l2 = [otherDate dateAsLong];
int step = (l1<l2)?1:-1;
int delta = 0;
if(l1 == l2)return 0;
if(abs(l2 - l1) > 1000)LOGS(@"deltaWorkDaysTo: mehr als 1000 Tage Differenz");
while(l1 < l2){[d1 addWorkDay:step];
delta+=step;
l1 = [d1 dateAsLong];
}
return delta;
}
- (NSString *)deltaHrsTo:(PBDate *)otherDate;
{NSCalendarDate *d1 = [self dateAsNSCD];
NSCalendarDate *d2 = [otherDate dateAsNSCD];
NSTimeInterval ti;
ti = [d2 timeIntervalSinceDate:d1];
return [NSSWF @"%.03f",(ti / 3600.0)];
}
- (NSString *)dateAsDBString;
{return [NSSWF @"%04i%02i%02i000000", year,month,day];
}
- (NSString *)dateAsDBDTString;
{return [NSSWF @"%04i%02i%02i%02i%02i%02i",year,month,day,hour,minute,second];
}
- (void)setDBString:(NSString *)value
{// date u. datetime yyyymmdd[hhmmss]
[self setLong:[[value secureSubstringToIndex:8]intValue]];
if([value length]>8){long l = [[value secureSubstringFromIndex:8]intValue];
second = l % 100;
minute = (l / 100) % 100;
hour = l / 10000;
}
}
- (NSString *)dateAsUIString;
{return [NSSWF @"%02i.%02i.%02i",day,month,year];
}
- (NSString *)dateAsUIDTString;
{return [NSSWF @"%02i.%02i.%02i %02i:%02i:%02i",day,month,year,hour,minute,second];
}
+ (PBDate *)dateWithYear:(int)y andWeek:(int)week;
{PBDate *pbd = [PBDate date];
[pbd setWeek:week andYear:y];
return pbd;
}
- (void)setWeek:(int)week andYear:(int)y; // wenn year == 0, current nehmen;
{[self clearDate];
dwofy = week;
dyforw = y;
if(!dyforw)dyforw = [[NSCalendarDate date]yearOfCommonEra];
[self setNSCD:[[self mondayOf1stWeekOfYear:dyforw]dateByAddingYears:0 months:0 days:(week -1)*7 hours:0 minutes:0 seconds:0]];
}
- (BOOL)setFreeString:(NSString *)value;
// t = today; Tagesdatum
//
{NSArray *a;
int direction; //1 = Zukunft, -1 = Vergangenheit;
NSString *absDate,*offset;
//n = now
if([value isEqual:@"n"]){[self setCurrent];
return YES;
}
//t = today
if([value iE:@"t"]){[self setCurrentDay];
return YES;
}
if([value hasPrefix:@"+"]){[self setCurrentDay];
direction = 1;
offset = [value substringFromIndex:1];
return [self applyOffsetString:offset direction:direction];
}
if([value hasPrefix:@"-"]){[self setCurrentDay];
direction = -1;
offset = [value substringFromIndex:1];
return [self applyOffsetString:offset direction:direction];
}
a = [value componentsSeparatedByString:@"+"];
if([a count]==2){absDate = [a firstObject];
if(![self setFreeStringAbs:absDate]){return NO;
}
direction = 1;
offset = [a oai:1];
return [self applyOffsetString:offset direction:direction];
}
a = [value componentsSeparatedByString:@"-"];
if([a count]==2){absDate = [a firstObject];
if(![self setFreeStringAbs:absDate]){return NO;
}
direction = -1;
offset = [a oai:1];
return [self applyOffsetString:offset direction:direction];
}
return [self setFreeStringAbs:value];
}
+ (NSArray *)modes;
{static NSArray *a;
if(!a){a = [[NSArray arrayWithObjects:@"f",@"l",nil]retain];
}
return a;
}
+ (NSArray *)types;
{static NSArray *a;
if(!a){a = [[NSArray arrayWithObjects:@"D",@"m",@"y",@"q",@"w",nil]retain];
}
return a;
}
- (BOOL)applyOffsetString:(NSString *)offset direction:(int)direction;
{// [best.Datum]{+,-}[%i][{D,m,y,q,w}][{f,l}][W] Tagesdatum mit Offset; %i = anzahl; nix -> 1// month,year,quarter,week; nix -> day; D = workdays
// f = first, l = last; nix -> exakt;
// W = workday; Ziel auf jeden fall ein workday; default = NO
NSScanner *sc;
int n=1,type=DAYS,mode=EXACT;
long l;
int m;
NSString *s;
BOOL targetWorkday=NO;
sc = [NSScanner scannerWithString:offset];
if(![sc scanInt:&n]){n=1;
s = offset;
}else{s = [offset substringFromIndex:[sc scanLocation]];
}
if([s length]){type = [[PBDate types] indexOfObject:[s substringToIndex:1]];
if(type!=DAYS)s = [s substringFromIndex:1];
}
if([s length]){mode = [[PBDate modes] indexOfObject:[s substringToIndex:1]];
if(mode != EXACT)s = [s substringFromIndex:1];
}
if([s length]){targetWorkday = [[s substringToIndex:1] iE:@"W"];
}
if(type == WORKDAYS)type = DAYS; //workday not yet implemented;
//offset calculation
switch(type){case DAYS:
[self addDay:direction * n];
break;
case WEEKS:
[self addWeek:direction * n];
break;
case MONTHS:
[self addMonth:direction * n];
break;
case QUARTERS:
[self addMonth:direction * n * 3];
break;
case YEARS:
[self addYear:direction * n];
break;
}
//first/last justification
if(mode != EXACT){ switch(type){case DAYS: //gibt's nix
break;
case WEEKS: //auf Montag/Sonntag in der Woche;
[self prevMonday];
if(mode != FIRST){[self addDay:6];
}
break;
case MONTHS: //auf 01./letzen im Monat; lezter: 01. des Folgemonats -1 tag;
l = (([self dateAsLong]/100)*100)+1;
[self setLong:l];
if(mode != FIRST){[self addMonth:1];
[self addDay:-1];
}
break;
case QUARTERS: //auf 01.01., 01.04., 01.07., 01.10 bzw. 31.03., 30.06., 30.09., 31.12.
m = (((([self month]-1)/3)*3)+1);
l = (([self dateAsLong]/10000)*10000)+m*100+1;
[self setLong:l];
if(mode != FIRST){[self addMonth:3];
[self addDay:-1];
}
break;
case YEARS: //auf 01.01./31.12.
l = (([self dateAsLong]/10000)*10000)+101;
[self setLong:l];
if(mode != FIRST){[self addYear:1];
[self addDay:-1];
}
break;
}
}
//workday justification
// not yet implemented;
return YES;
}
- (BOOL)setFreeStringAbs:(NSString *)value;
// String im Format:
// (wenn default-sequence)
// jahr ist immer optional u. kann 2- oder 4-stellig sein
// wenn delimiter drin sind: DD.MM.YYYY
// DD.MM.YY
// DD.MM
// wenn keine delimiter drin sind: wenn 8 characters DDMMYYYY
// wenn 6 characters DDMMYY
// wenn 4 characters DDMM
// wenn 2 characters WW
// Zeitanteil durch space abgetrennt:
// hh
// hhmm
// hhmmss
// hh:mm
// hh:mm:ss
{int tt,mm,jjjj=0;
NSRange myRange;
NSArray *substrings,*a;
int l,ssc,ww;
if(!FILLED(value)){ return NO;};[self clearDate];
a = [value componentsSeparatedByString:@" "];
value = [a firstObject];
if([a count]==2){NSString *valueT = [a oai:1];
int hh=0,mmin=0,ss=0;
myRange = [valueT rangeOfString:@":"];
if(myRange.length){ //wir haben delimiters drinsubstrings = [valueT componentsSeparatedByString:@":"];
ssc = [substrings count];
if(ssc < 2 || ssc > 3)return NO;
hh = [[substrings firstObject]intValue];
mmin = [[substrings oai:1]intValue];
if(ssc == 3){ss = [[substrings oai:2]intValue];
}
}else{l = [valueT length];
if(l>6)return NO;
if(l>=2){hh = [[valueT substringToIndex:2] intValue];
}
if(l>=4){mmin = [[[valueT substringFromIndex:2]substringToIndex:2]intValue];
}
if(l==6){ss = [[valueT substringFromIndex:4]intValue];
}
}
if(hh < 0 || hh > 23)return NO;
if(mmin < 0 || mmin > 59)return NO;
if(ss < 0 || ss > 59)return NO;
hour = hh;
minute = mmin;
second = ss;
}
l = [value length];
myRange = [value rangeOfString:@"."];
if(myRange.length){ //wir haben delimiters drinsubstrings = [value componentsSeparatedByString:@"."];
ssc = [substrings count];
tt = [[substrings firstObject]intValue];
mm = [[substrings oai:1]intValue];
if(ssc==3){jjjj = [[substrings oai:2]intValue];
if(jjjj<100)jjjj=[self addCentury:jjjj];
}
if(ssc==2){jjjj = [[NSCalendarDate date]yearOfCommonEra];
}
if(![self checkDateTT:tt mm:mm jjjj:jjjj])return NO;
year = jjjj; month = mm; day = tt;
return YES;
}
if(l==8 || l ==6){tt = [[value substringToIndex:2]intValue];
mm = [[[value substringFromIndex:2]substringToIndex:2]intValue];
jjjj = [[value substringFromIndex:4]intValue];
if(jjjj<100)jjjj=[self addCentury:jjjj];
if(![self checkDateTT:tt mm:mm jjjj:jjjj])return NO;
year = jjjj; month = mm; day = tt;
return YES;
}
if((l==4)){tt = [[value substringToIndex:2]intValue];
mm = [[value substringFromIndex:2]intValue];
jjjj = [[NSCalendarDate date]yearOfCommonEra];
if(![self checkDateTT:tt mm:mm jjjj:jjjj])return NO;
year = jjjj; month = mm; day = tt;
return YES;
}
if(l==2 || l==1){int currentWeek;
int currentYear;
NSCalendarDate *cd;
if((ww=[value intValue])>53){ return NO;}cd = [NSCalendarDate date];
currentYear = [cd yearOfCommonEra];
[self setNSCD:cd];
currentWeek = [self weekOfYear];
if(ww < currentWeek)currentYear++; //dann ist woche im naechsten Jahr gemeint
[self setWeek:ww andYear:currentYear];
return YES;
}
return NO;
}
- (int) weekOfYear; // 1 <= woche <= 53
{if(dwofy)return dwofy;
[self computeWandyFrom:[self dateAsNSCD]];
return dwofy;
}
- (int) yearForWeek;
{if(dyforw)return dyforw;
[self computeWandyFrom:[self dateAsNSCD]];
return dyforw;
}
- (NSString *)weekAndYear;
{return [NSSWF @"%02i/%04i",[self weekOfYear], [self yearForWeek]];
}
- (void)dealloc
{[monthNames release];
[super dealloc];
}
- (void)addWeek:(int)value;
{NSCalendarDate *d;
if((d=[self dateAsNSCD])){ if(hour==0 && minute==0 && second==0){[self setNSCD:[d dateByAddingYears:0 months:0 days:7 * value hours:2 minutes:10 seconds:0]]; //wg. Sommerzeit 2 std. dazu
hour = 0; minute = 0;
}else{[self setNSCD:[d dateByAddingYears:0 months:0 days:7 * value hours:0 minutes:0 seconds:0]]; //exakt
}
}
}
- (void)addWorkDay:(int)value;
{//feiertage u. firmenkalender werden beruecksichtigt
//samstag sonntag gemaess einstellung im config
int step;
if(!value)return;
if(abs(value)>1000){LOGS(@"max. 1000 Werktage");
return;
}
if(value <0){step=-1;
}else{step=1;
}
while(value!=0){[self addDay:step];
if([self isWorkday])value-=step;
}
}
- (void)addMinute:(int)value;
{NSCalendarDate *d;
if((d=[self dateAsNSCD])){[self setNSCD:[d dateByAddingYears:0 months:0 days:0 hours:0 minutes:value seconds:0]]; //exakt
}
}
- (void)addDay:(int)value;
{NSCalendarDate *d;
if((d=[self dateAsNSCD])){ if(hour==0 && minute==0 && second==0){[self setNSCD:[d dateByAddingYears:0 months:0 days:value hours:2 minutes:10 seconds:0]]; //wg. Sommerzeit 2 std. dazu
hour = 0; minute = 0;
}else{[self setNSCD:[d dateByAddingYears:0 months:0 days:value hours:0 minutes:0 seconds:0]]; //exakt
}
}
}
- (void)addMonth:(int)value;
{NSCalendarDate *d;
if((d=[self dateAsNSCD])){ if(hour==0 && minute==0 && second==0){[self setNSCD:[d dateByAddingYears:0 months:value days:0 hours:2 minutes:10 seconds:0]]; //wg. Sommerzeit 2 std. dazu
hour = 0; minute = 0;
}else{[self setNSCD:[d dateByAddingYears:0 months:value days:0 hours:0 minutes:0 seconds:0]]; //exakt
}
}
}
// weil GNUstep ein problem hat mit dateByAddingYears...
- (void)incMonth;
{month++;
day = 1;
if(month==13){year++;
month=1;
}
}
- (void)decMonth;
{month--;
day = 1;
if(month==0){year--;
month=12;
}
}
- (void)addYear:(int)value;
{year += value;
}
- (int)day;
{return day;
}
- (int)month;
{return month;
}
- (int)year;
{return year;
}
- (int)second;
{return second;
}
- (int)minute;
{return minute;
}
- (int)hour;
{return hour;
}
- (void)setDay:(int)value;
{day = value;
}
- (void)setMonth:(int)value;
{month = value;
}
- (void)setYear:(int)value;
{year = value;
}
- (void)setMinute:(int)value;
{minute = value;
}
- (void)setHour:(int)value;
{hour = value;
}
- (BOOL)checkDateTT:(int)t mm:(int)m jjjj:(int)j;
{ static int tage[2][13]= { {0,31,28,31,30,31,30,31,31,30,31,30,31}, {0,31,29,31,30,31,30,31,31,30,31,30,31}};
int index;
BOOL sj;
if(t < 1 || m < 1 || j < 1){ return NO;} if(t > 31 || m > 12){ return NO;}sj = ((j%4 == 0) && (j%100 != 0)) || (j%400 == 0);
index = sj ? 1 : 0;
if(t > tage[index][m]){return NO;}return YES;
}
- (int)addCentury:(int)y;
{ if(y >= 66){ // 19 davorreturn 1900 + y;
}else{ // 20 davor return 2000 + y;
}
}
- (int)weekday;
{return [[self dateAsNSCD] dayOfWeek];
}
- (NSString *)weekdayName;
{return [[_APP weekdayNames] oai:[[self dateAsNSCD] dayOfWeek]];
}
- (NSString *)fullWeekdayName;
{return [[_APP weekdayFullNames] oai:[[self dateAsNSCD] dayOfWeek]];
}
- (void)prevMonday;
{NSCalendarDate *d = [self dateAsNSCD];
d = [self prevMonday:d];
[self setNSCD:d];
}
- (NSCalendarDate *)prevMonday:(NSCalendarDate *)aDate;
{int dayOfWeek = [aDate dayOfWeek];
if(!dayOfWeek)dayOfWeek=7; //Sonntag am Ende;
return [aDate dateByAddingYears:0 months:0 days:-(dayOfWeek-1) hours:0 minutes:0 seconds:0];
}
- (int)_weekOfYearNoSpecialCase: (NSCalendarDate *)aDate
{NSCalendarDate *prevMonday = [self prevMonday:aDate];
NSTimeInterval i = [prevMonday timeIntervalSinceDate:[self mondayOf1stWeekOfYear:[aDate yearOfCommonEra]]];
return (int)round0(((i/(3600*24*7))+1));
}
- (NSCalendarDate *)mondayOf1stWeekOfYear:(int)y;
{int currentYear; //das betroffene jahr
NSString *dateAsString; //tt.mm.yyyy
NSCalendarDate *firstJanuary;
NSCalendarDate *mondayOfWeek1;
int dayOfWeek;
if (y==0){currentYear = [[NSCalendarDate date]yearOfCommonEra];
}else{currentYear = y;
}
dateAsString = [NSSWF @"01.01.%04i",currentYear];
firstJanuary = [NSCalendarDate dateWithString:dateAsString calendarFormat: @"%d.%m.%Y"];
dayOfWeek = [firstJanuary dayOfWeek];
if(!dayOfWeek)dayOfWeek=7; //Sonntag am Ende;
// Do im alten Jahr: Woche zum alten Jahr
// Do im neuen Jahr: Woche zum neuen Jahr
if (dayOfWeek <= THURSDAY){ //1.1. in erster Woche des lfd. Jahres//-> vorheriger Montag;
mondayOfWeek1 =
[self prevMonday:firstJanuary];
}else{ //1.1. in letzter Woche des Vorjahres//-> naechster Montag;
mondayOfWeek1 =
[[self prevMonday:firstJanuary] dateByAddingYears:0 months:0 days:7 hours:0 minutes:0 seconds:0];
}
return mondayOfWeek1;
}
- (void)computeWandyFrom:(NSCalendarDate *)aDate;
{NSCalendarDate *clutchDay;
int currentYear = [aDate yearOfCommonEra];
int dayOfWeek = [aDate dayOfWeek];
int numDaysDiff;
if(!dayOfWeek)dayOfWeek=7; //Sonntag am Ende;
numDaysDiff = THURSDAY - dayOfWeek;
//Do der lfd. Woche:
clutchDay = [aDate dateByAddingYears:0 months:0 days:numDaysDiff hours:0 minutes:0 seconds:0];
//Do im neuen Jahr-> wir sind in Woche 1
if ([clutchDay yearOfCommonEra] == currentYear+1) {dyforw = currentYear + 1;
dwofy = 1;
return;
}
//Do im vorherigen Jahr
if ([clutchDay yearOfCommonEra] == currentYear - 1) {dyforw = currentYear - 1;
dwofy = [self _weekOfYearNoSpecialCase: clutchDay];
return;
}
//Mittwoch im selben Jahr
dyforw = currentYear;
dwofy = [self _weekOfYearNoSpecialCase: clutchDay];
}
/* deprecated
- (NSString *)dateAsMysqlDBDTString; // yyyy-mm-dd hh:mm:ss f. mysql;
{return [NSSWF @"%04i-%02i-%02i %02i:%02i:%02i",year,month,day,hour,minute,second];
}
- (void)bankAddMonth:(int)v
{ static int tage[2][13]= { {0,31,28,31,30,31,30,31,31,30,31,30,31}, {0,31,29,31,30,31,30,31,31,30,31,30,31}};
int t1,t,m,j,index;
BOOL sj;
long l = [self dateAsLong];
if(l<0)return;
t = l%100; m = (l%10000)/100; j = l/10000;
j = j + ((m + v - 1) / 12);
m = ((m + v - 1) % 12) + 1;
sj = ((j%4 == 0) && (j%100 != 0)) || (j%400 == 0);
index = sj ? 1 : 0;
t1 = tage[index][m];
if(t > t1)t = t1;
[self setLong:j*10000 + m*100 + t];
}
+ (NSArray *)delim;
{static NSArray *a;
if(!a){a = [[NSArray arrayWithObjects:@".",@"-",@"/",nil]retain];
}
return a;
}
- (void)mitte
{int m,j;
long l = [self dateAsLong];
if(l<0)return;
m = (l%10000)/100; j = l/10000;
[self setLong:j*10000 + m*100 + 15];
}
- (void)letzter
{ static int tage[2][13]= { {0,31,28,31,30,31,30,31,31,30,31,30,31}, {0,31,29,31,30,31,30,31,31,30,31,30,31}};
int t,m,j,index;
BOOL sj;
long l = [self dateAsLong];
if(l<0)return;
m = (l%10000)/100; j = l/10000;
sj = ((j%4 == 0) && (j%100 != 0)) || (j%400 == 0);
index = sj ? 1 : 0;
t = tage[index][m];
if (t == 31) t = 30;
[self setLong:j*10000 + m*100 + t];
}
+ (NSString *)freeDeltaFrom:(NSString *)date1 to:(NSString *)date2;
{// liefert sekunden von date1 bis date2; nimmt strings im Guiformat entgegen
NSTimeInterval ti;
NSCalendarDate *d1 = [[PBDate dateWithFreeString:date1]dateAsNSCD];
NSCalendarDate *d2 = [[PBDate dateWithFreeString:date2]dateAsNSCD];
if(!(d1 && d2))return @"0";
ti = [d2 timeIntervalSinceDate:d1];
return [NSSWF @"%0f",ti];
}
*/
@end
