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- {
- *********************************************************************
- $Id$
- Copyright (C) 1997, 1998 Gertjan Schouten
- 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 2 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *********************************************************************
- System Utilities For Free Pascal
- }
- type
- PByte=^Byte;
- PWord=^Word;
- PLongint=^Longint;
- const
- DayTable:array[Boolean,1..12] of longint =
- ((0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334),
- (0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335));
- HexDigits: array[0..15] of char = '0123456789ABCDEF';
- function ChangeFileExt(FileName, Extension: string): string;
- var i: longint;
- begin
- I := Length(FileName);
- while (I > 0) and not (FileName[I] in ['.', '\', ':']) do Dec(I);
- if (I = 0) or (FileName[I] <> '.') then I := 255;
- ChangeFileExt := Copy(FileName, 1, I - 1) + Extension;
- end;
- function ExtractFilePath(FileName: string): string;
- var i: longint;
- begin
- i := Length(FileName);
- while (I > 0) and not (FileName[I] in ['\', ':']) do Dec(I);
- ExtractFilePath := Copy(FileName, 1, I);
- end;
- function ExtractFileDir(FileName: string): string;
- var i: longint;
- begin
- I := Length(FileName);
- while (I > 0) and not (FileName[I] in ['\', ':']) do Dec(I);
- if (I > 1) and (FileName[I] = '\') and
- not (FileName[I - 1] in ['\', ':']) then Dec(I);
- ExtractFileDir := Copy(FileName, 1, I);
- end;
- function ExtractFileDrive(FileName: string): string;
- var i, j: longint;
- begin
- if (Length(FileName) >= 3) and (FileName[2] = ':') then
- ExtractFileDrive := Copy(FileName, 1, 2)
- else if (Length(FileName) >= 2) and (FileName[1] = '\') and
- (FileName[2] = '\') then begin
- J := 0;
- I := 3;
- While (I < Length(FileName)) and (J < 2) do begin
- if FileName[I] = '\' then Inc(J);
- if J < 2 then Inc(I);
- end;
- if FileName[I] = '\' then Dec(I);
- ExtractFileDrive := Copy(FileName, 1, I);
- end else ExtractFileDrive := '';
- end;
- function ExtractFileName(FileName: string): string;
- var i: longint;
- begin
- I := Length(FileName);
- while (I > 0) and not (FileName[I] in ['\', ':']) do Dec(I);
- ExtractFileName := Copy(FileName, I + 1, 255);
- end;
- function ExtractFileExt(FileName: string): string;
- var i: longint;
- begin
- I := Length(FileName);
- while (I > 0) and not (FileName[I] in ['.', '\', ':']) do Dec(I);
- if (I > 0) and (FileName[I] = '.') then
- ExtractFileExt := Copy(FileName, I, 255)
- else ExtractFileExt := '';
- end;
- {
- $Log$
- Revision 1.1 1998-04-10 15:17:46 michael
- + Initial implementation; Donated by Gertjan Schouten
- His file was split into several files, to keep it a little bit structured.
- }
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