home *** CD-ROM | disk | FTP | other *** search
- Procedure Strip_Spaces;
-
- {strips spaces from beginning and end of TempVar}
- Begin
- If Length(TempVar) <> 0 Then
- While Copy(TempVar,1,1) = Chr(32) Do Delete(TempVar,1,1);
- If Length(TempVar) <> 0 Then Begin
- i:= Length(TempVar);
- While Copy(TempVar,i,1) = Chr(32) Do Begin
- Delete(TempVar,i,1);
- i:= i-1;
- End;
- End;
- End; { procedure strip_spaces }
-
-
-
-
- Procedure Gather_Input_Info;
-
- Var
- LOF: Integer; { Length Of Field }
-
- Begin
- Tab;
- LOF:= ((MaxY-1)*80+MaxX)-((MinY-1)*80+MinX)+1;
- TempVar:= '';
- For i:= 1 to LOF Do Begin
- TempVar:= TempVar + ScrBuf[XY];
- XY:= XY+1;
- End;
- End;
-
-
- Procedure Find_Error;
-
- Begin
- GotoXY(2,25);
- TextBackground(LightGray);
- TextColor(Black);
- For i:= 1 to 65 Do Write(Chr(32));
- GotoXY(12,25);
- Write('Field must contain only number characters,.,-');
- Entry_Field:= Entry_Field - 1;
- Tab;
- While (not X > ErrorPos) Do
- Rt1;
- Done_Reading_Kbd:= False;
- Repeat
- ReadKbd;
- Until Done_Reading_Kbd;
- Entry_Field:= Entry_Field-1;
- End;
-
-
-
-
-
- Procedure Check_For_BadName(Name: Str12);
-
- Var
- ch: Char; { this is what we're going to check to make sure it's valid }
- Name_Len: Integer; { length of the file name to be checked }
- Str1: String[1];
- x: Integer; { position within the name }
-
- Begin
- Str1:= Copy(Name,1,1);
- ch:= Str1;
- Name_Len:= Length(Name);
- x:= 1;
- While Not (x > Name_Len) Do Begin
- Str1:= Copy(Name,x,1);
- ch:= Str1;
- Good_Char:= (ch in ['a'..'z','A'..'Z','0'..'9','_','.','$','&',
- '#','@','!','%','(',')','-','{','}','/','\']);
- If Not Good_Char Then Begin
- Sound(1000);
- Delay(100);
- NoSound;
- GotoXY(1,25);
- TextColor(Black);
- TextBackground(White);
- For x:= 1 to 78 Do
- Write(' ');
- GotoXY(4,25);
- Write('File name has an invalid character in it.');
- TextColor(Yellow);
- TextBackground(Black);
- x:= Name_Len; { no need to go any further }
- BadName:= True;
- x:= x+1;
- End { if not Good_Char }
- Else Begin { it is a good char }
- If ((ch = '.') and (Name_Len - x > 3)) Then Begin
- Sound(1000);
- Delay(100);
- NoSound;
- GotoXY(1,25);
- TextColor(Black);
- TextBackground(White);
- For x:= 1 to 78 Do
- Write(' ');
- GotoXY(15,25);
- Write('File name ext may have no more that 3 characters.');
- TextColor(Yellow);
- TextBackground(Black);
- x:= Name_Len; { no need to go any further }
- BadName:= True;
- End { If ((ch = '.') and (Name_Len - x > 3)) }
- Else
- x:= x+1; { let's look at the next one }
- End; { else it is a good char }
- End; { While Not (x > Name_Len) }
- End; { Procedure Check_For_BadName }
-
-
- Procedure Open_File;
-
- Begin
-
- GotoXY(25,12);
- Write('Data File Name');
- Repeat
- TextColor(LightRed);
- GotoXY(30,13);
- Readln(File_Name);
- BadName:= False;
- Check_For_BadName(File_Name);
- Until Not BadName;
- TextColor(Yellow);
- Assign (Output_File, File_Name);
- {$I-} Reset(Output_File) {$I+}; {turn off I/O error checking}
- EXISTS:= (IOresult = 0); {file does exist }
- If Not EXISTS Then Begin {file does not exist}
- Rewrite(Output_File);
- Current_File_Pos:= FilePos(Output_File)+1;
- ClrScr;
- End
- Else {IOresult = 0, therefore it is an existing file}
- Begin
- ClrScr;
- Seek(Output_File, FileSize(Output_File));
- Current_File_Pos:= FilePos(Output_File)+1;
- End;
-
- End; { procedure open_file }
-
-