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https://gitlab.com/freepascal.org/fpc/source.git
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b3ea1668db
- Adds threadsafe (Delphi-compatible) versions of DateToStr,
TimeToStr, DateTimeToStr, FormatDateTime.
- Core functionality moved to DateTimeToString, which directly
uses 'out' parameter in order to avoid unnecessary result copying.
- Modified the code so no temporary AnsiStrings are used (speed).
- Fixes a bug which would cause infinite recursion if
(Short|Long)DateFormat variable would contain 'd' character or,
likewise, (Short|Long)TimeFormat would contain 't'.
- Fixes numerous small Delphi compatibility issues, like: empty format
string has the same effect as 'C'; overlong tokens treated as the
longest possible ones (e.g. 'ddddddddd' is the same as 'dddddd');
'AM/PM' is output preserving its case, etc.
- minor reformating
git-svn-id: trunk@14116 -
188 lines
10 KiB
PHP
188 lines
10 KiB
PHP
{
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*********************************************************************
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Copyright (C) 1997, 1998 Gertjan Schouten
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*********************************************************************
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System Utilities For Free Pascal
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}
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type
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PDayTable = ^TDayTable;
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TDayTable = array[1..12] of Word;
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const
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HoursPerDay = 24;
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MinsPerHour = 60;
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SecsPerMin = 60;
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MSecsPerSec = 1000;
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MinsPerDay = HoursPerDay * MinsPerHour;
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SecsPerDay = MinsPerDay * SecsPerMin;
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MSecsPerDay = SecsPerDay * MSecsPerSec;
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{TDateTime holds the date as the number of days since 30 Dec 1899, known as
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Microsoft Excel epoch}
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JulianEpoch = TDateTime(-2415018.5);
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UnixEpoch = JulianEpoch + TDateTime(2440587.5);
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DateDelta = 693594; // Days between 1/1/0001 and 12/31/1899
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UnixDateDelta = Trunc(UnixEpoch); //25569
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{ True=Leapyear }
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MonthDays: array [Boolean] of TDayTable =
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((31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31),
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(31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31));
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var
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TwoDigitYearCenturyWindow : word absolute DefaultFormatSettings.TwoDigitYearCenturyWindow;
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{ Threshold to be subtracted from year before
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age-detection.}
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{ date time formatting characters:
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c : shortdateformat + ' ' + longtimeformat
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d : day of month
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dd : day of month (leading zero)
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ddd : day of week (abbreviation)
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dddd : day of week (full)
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ddddd : shortdateformat
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dddddd : longdateformat
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m : month
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mm : month (leading zero)
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mmm : month (abbreviation)
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mmmm : month (full)
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y : year (two digits)
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yy : year (two digits)
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yyyy : year (four digits, with century)
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h : hour
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hh : hour (leading zero)
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n : minute
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nn : minute (leading zero)
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s : second
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ss : second (leading zero)
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t : shorttimeformat
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tt : longtimeformat
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am/pm : use 12 hour clock and display am and pm accordingly
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a/p : use 12 hour clock and display a and p accordingly
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/ : insert date seperator
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: : insert time seperator
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"xx" : literal text
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'xx' : literal text
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}
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type
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{ windows isn't defined in 2.0.2 (FK) }
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{$if not(defined(windows)) and not(defined(win32))}
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{ Win32 reuses the struct from the Windows unit }
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TSystemTime = record
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Year, Month, Day: word;
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Hour, Minute, Second, MilliSecond: word;
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end ;
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{$endif windows}
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TTimeStamp = record
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Time: integer; { Number of milliseconds since midnight }
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Date: integer; { One plus number of days since 1/1/0001 }
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end ;
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function DateTimeToTimeStamp(DateTime: TDateTime): TTimeStamp;
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function TimeStampToDateTime(const TimeStamp: TTimeStamp): TDateTime;
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function MSecsToTimeStamp(MSecs: Comp): TTimeStamp;
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function TimeStampToMSecs(const TimeStamp: TTimeStamp): comp;
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function TryEncodeDate(Year, Month, Day: Word; out Date: TDateTime): Boolean;
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function TryEncodeTime(Hour, Min, Sec, MSec: Word; out Time: TDateTime): Boolean;
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function EncodeDate(Year, Month, Day :word): TDateTime;
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function EncodeTime(Hour, Minute, Second, MilliSecond:word): TDateTime;
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function ComposeDateTime(Date,Time : TDateTime) : TDateTime;
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procedure DecodeDate(Date: TDateTime; out Year, Month, Day: word);
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function DecodeDateFully(const DateTime: TDateTime; out Year, Month, Day, DOW: Word): Boolean;
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procedure DecodeTime(Time: TDateTime; out Hour, Minute, Second, MilliSecond: word);
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procedure DateTimeToSystemTime(DateTime: TDateTime; out SystemTime: TSystemTime);
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function SystemTimeToDateTime(const SystemTime: TSystemTime): TDateTime;
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function DayOfWeek(DateTime: TDateTime): integer;
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function Date: TDateTime;
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function Time: TDateTime;
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function Now: TDateTime;
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function IncMonth(const DateTime: TDateTime; NumberOfMonths: integer = 1 ): TDateTime;
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procedure IncAMonth(var Year, Month, Day: Word; NumberOfMonths: Integer = 1);
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function IsLeapYear(Year: Word): boolean;
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function DateToStr(Date: TDateTime): string;
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function DateToStr(Date: TDateTime; const FormatSettings: TFormatSettings): string;
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function TimeToStr(Time: TDateTime): string;
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function TimeToStr(Time: TDateTime; const FormatSettings: TFormatSettings): string;
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function DateTimeToStr(DateTime: TDateTime): string;
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function DateTimeToStr(DateTime: TDateTime; const FormatSettings: TFormatSettings): string;
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function StrToDate(const S: ShortString): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDate(const S: Ansistring): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDate(const S: ShortString; separator : char): TDateTime;{$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDate(const S: AnsiString; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTime(const S: Shortstring): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTime(const S: Ansistring): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTime(const S: ShortString; separator : char): TDateTime;{$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTime(const S: AnsiString; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDate(const S: ShortString; const useformat : string; separator : char): TDateTime;{$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDate(const S: AnsiString; const useformat : string; separator : char): TDateTime;{$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTime(const S: PChar; Len : integer; separator : char = #0): TDateTime;
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function StrToDate(const S: PChar; Len : integer; const useformat : string; separator : char = #0): TDateTime;
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function StrToDateTime(const S: string): TDateTime;
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function StrToDateTime(const s: ShortString; const UseFormat : TFormatSettings): TDateTime;
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function StrToDateTime(const s: AnsiString; const UseFormat : TFormatSettings): TDateTime;
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function FormatDateTime(const FormatStr: string; DateTime: TDateTime):string;
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function FormatDateTime(const FormatStr: string; DateTime: TDateTime; const FormatSettings: TFormatSettings): string;
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procedure DateTimeToString(out Result: string; const FormatStr: string; const DateTime: TDateTime);
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procedure DateTimeToString(out Result: string; const FormatStr: string; const DateTime: TDateTime; const FormatSettings: TFormatSettings);
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Function DateTimeToFileDate(DateTime : TDateTime) : Longint;
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Function FileDateToDateTime (Filedate : Longint) :TDateTime;
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function TryStrToDate(const S: ShortString; out Value: TDateTime): Boolean; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function TryStrToDate(const S: AnsiString; out Value: TDateTime): Boolean; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function TryStrToDate(const S: ShortString; out Value: TDateTime; separator : char): Boolean;
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function TryStrToDate(const S: AnsiString; out Value: TDateTime; separator : char): Boolean;
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function TryStrToTime(const S: ShortString; out Value: TDateTime): Boolean; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function TryStrToTime(const S: AnsiString; out Value: TDateTime): Boolean; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function TryStrToTime(const S: ShortString; out Value: TDateTime; separator : char): Boolean;
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function TryStrToTime(const S: AnsiString; out Value: TDateTime; separator : char): Boolean;
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function TryStrToDate(const S: ShortString; out Value: TDateTime;
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const useformat : string; separator : char = #0): Boolean;
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function TryStrToDate(const S: AnsiString; out Value: TDateTime;
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const useformat : string; separator : char = #0): Boolean;
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function TryStrToDateTime(const S: ShortString; out Value: TDateTime): Boolean;
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function TryStrToDateTime(const S: AnsiString; out Value: TDateTime): Boolean;
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function TryStrToDate(const S: string; out Value: TDateTime; const FormatSettings: TFormatSettings): Boolean;
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function TryStrToTime(const S: string; out Value: TDateTime; const FormatSettings: TFormatSettings): Boolean;
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function TryStrToDateTime(const S: string; out Value: TDateTime; const FormatSettings: TFormatSettings): Boolean;
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function StrToDateDef(const S: ShortString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDateDef(const S: ShortString; const Defvalue : TDateTime; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTimeDef(const S: ShortString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTimeDef(const S: ShortString; const Defvalue : TDateTime; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDateTimeDef(const S: ShortString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDateDef(const S: AnsiString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDateDef(const S: AnsiString; const Defvalue : TDateTime; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTimeDef(const S: AnsiString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToTimeDef(const S: AnsiString; const Defvalue : TDateTime; separator : char): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function StrToDateTimeDef(const S: AnsiString; const Defvalue : TDateTime): TDateTime; {$ifdef SYSUTILSINLINE}inline;{$endif}
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function CurrentYear:Word;
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{ FPC Extra }
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Procedure GetLocalTime(var SystemTime: TSystemTime);
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procedure ReplaceTime(var dati:TDateTime; NewTime : TDateTime); inline;
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procedure ReplaceDate(var DateTime: TDateTime; const NewDate: TDateTime); inline;
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