Registered: 2000-01-24
Posts: 4946
Loc: Leatherhead, Surrey, UK
Originally Posted By: Jochen
Shouldn't this be already handled by Perl or Shell scripts ?
Binary I/O is handled by a lot of other programming languages too, but if you are primarily a KiXtart coder then that is not a very helpful observation.
KiXtart does already allow you to handle binary I/O via objects, specifically the ADO stream object. The file system object FSO also kind of works but is deprecated - STW if you are interested.
The bigger problem is that KiXtart does not handle raw data types like binary files at all well. At a minumum KiXtart would need to support "byte arrays", and currently it does not.
This means that you can read and write binary data pretty well, as long as you don't ever need to look at it or manipulate it.
#187702 - 2008-05-1602:06 PMRe: KiXtart Support For Binary Files
[Re: Richard H.]
BillBarnardBillBarnard
Starting to like KiXtart
Registered: 2007-03-14
Posts: 141
Loc: Leighton Buzzard, Bedfordshire...
Thanks for the info, but it would be nice if KiXtart could do something simple like this Qbasic example:- [code] ' Remove Ctrl-Z(s) from Input file. z$ = CHR$(26) INPUT "Input file "; infile$ INPUT "Output file "; outfile$ OPEN infile$ FOR BINARY AS #1 OPEN outfile$ FOR OUTPUT AS #2 a$ = INPUT$(1, 1) WHILE NOT EOF(1) IF a$ <> z$ THEN PRINT a$; PRINT #2, a$; END IF a$ = INPUT$(1, 1) WEND CLOSE #1 CLOSE #2 END [/code]
Are there restrictions in the programming language KiX is written in?
#187711 - 2008-05-1608:57 PMRe: KiXtart Support For Binary Files
[Re: BillBarnard]
NTDOCNTDOC Administrator
Registered: 2000-07-28
Posts: 11625
Loc: CA
No its's not a restriction in the language. It's written in MS Assembly and VC++ 6 which allows all of that. Only the programmer can say why he doesn't or hasn't supported it to this date.
#187981 - 2008-05-3002:10 PMRe: KiXtart Support For Binary Files
[Re: BillBarnard]
Arend_Arend_ MM club member
Registered: 2005-01-17
Posts: 1896
Loc: Hilversum, The Netherlands
I wonder, you could probably convert the chars in the binary file like I did in my UUID2netbootGUID UDF, and then write the file back. Although that takes a lot of scripting it and will be very slow it "should" get the job done.
But Richard's code would prove more usefull then my UDF
#187990 - 2008-05-3005:53 PMRe: KiXtart Support For Binary Files
[Re: Arend_]
Glenn BarnasGlenn Barnas KiX Supporter
Registered: 2003-01-28
Posts: 4400
Loc: New Jersey
What about binary-zero? Would that convert to nulls, which aren't supported? What about non-ascii chars? Need to be sure you're not in ASCII mode. Seems like there'd be plenty of potential pitfalls.
Glenn
_________________________ Actually I am a Rocket Scientist!
Registered: 2000-01-24
Posts: 4946
Loc: Leatherhead, Surrey, UK
Originally Posted By: Glenn Barnas
What about binary-zero? Would that convert to nulls, which aren't supported? What about non-ascii chars? Need to be sure you're not in ASCII mode. Seems like there'd be plenty of potential pitfalls.
Glenn
Indeedy, which is my code converts to / from an array of bytes (well, integers) - in this form you can safely manage data whatever the content. A zero is just a zero.
It's a pretty ugly method and I cannot guarantee that it will continue to work in the future, but in the interim it's a workable solution for the few times that the requirement pops up.
