1. Floppy_Is_Blank Function Request
I need a function executable in Win32 that will return True if disk A: is
blank, and False if not.
Can anybody tackle this one before I do?
Thanks!
ck
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2. Re: Floppy_Is_Blank Function Request
Hello ck,
Use the function
if atom(dir("a:*.*")) then
.....
If the disk is empty, even if there is no disk in the 'a' drive, dir()
returns -1. This is an atom; otherwise the dir() function returns a
sequence.
Hope this helps, Ad
----- Oorspronkelijk bericht -----
Van: ck lester <cklester at YAHOO.COM>
Aan: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Verzonden: dinsdag 29 augustus 2000 22:54
Onderwerp: Floppy_Is_Blank Function Request
> I need a function executable in Win32 that will return True if disk A: is
> blank, and False if not.
>
> Can anybody tackle this one before I do?
>
> Thanks!
> ck
>
>
>
> _________________________________________________________
> Do You Yahoo!?
> Get your free @yahoo.com address at http://mail.yahoo.com
>
3. Re: Floppy_Is_Blank Function Request
Dude*! Thanks. 
ck
* I don't think I ever use this word outside of cyberspace. Weird.
To alleviate my quandary, Ad Rienks suggested:
> Hello ck,
>
> Use the function
> if atom(dir("a:*.*")) then
> .....
[some snippage occurred]
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4. Re: Floppy_Is_Blank Function Request
Another take on this...
How about running a CHKDSK A: and saving the output to a file.
Then look in the file for the two lines similar to:
1457664 bytes total disk space.
1457664 bytes available on disk.
Extract the byte counts and compare. If equal then the disk is blank. If
not then one or more files/directories are present (even hidden and system
ones).
Regards,
Andy Cranston.
-----Original Message-----
From: Hawke' [mailto:mikedeland at NETZERO.NET]
Sent: 30 August 2000 10:25
To: EUPHORIA at LISTSERV.MUOHIO.EDU
Subject: Re: Floppy_Is_Blank Function Request
errrrr.............
will that take into account, assuredly, hidden/system files being
present on that floppy????
im thinking it won't actually :/
--Hawke'
> Hello ck,
> Use the function
> if atom(dir("a:*.*")) then
> If the disk is empty, even if there is no disk in the 'a' drive, dir()
> returns -1. This is an atom; otherwise the dir() function returns a
> sequence.
>
> Hope this helps, Ad
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5. Re: Floppy_Is_Blank Function Request
On Wed, 30 Aug 2000 02:25:23 -0700, Hawke' <mikedeland at NETZERO.NET> wrote:
>errrrr.............
>will that take into account, assuredly, hidden/system files being
>present on that floppy????
>im thinking it won't actually :/
>--Hawke'
>
>> Hello ck,
>> Use the function
>> if atom(dir("a:*.*")) then
>> If the disk is empty, even if there is no disk in the 'a' drive, dir()
>> returns -1. This is an atom; otherwise the dir() function returns a
>> sequence.
>>
>> Hope this helps, Ad
>
>
>_______________________________________________
>Why pay for something you could get for free?
>NetZero provides FREE Internet Access and Email
>http://www.netzero.net/download/index.html
if atom(dir("\\A a:*.*")) then
Wouldn't this find hidden files
Bernie
6. Re: Floppy_Is_Blank Function Request
errrrr.............
will that take into account, assuredly, hidden/system files being
present on that floppy????
im thinking it won't actually :/
--Hawke'
> Hello ck,
> Use the function
> if atom(dir("a:*.*")) then
> If the disk is empty, even if there is no disk in the 'a' drive, dir()
> returns -1. This is an atom; otherwise the dir() function returns a
> sequence.
>
> Hope this helps, Ad
_______________________________________________
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NetZero provides FREE Internet Access and Email
http://www.netzero.net/download/index.html
7. Re: Floppy_Is_Blank Function Request
Correction I mean this should work
if atom(dir("/A a:*.*")) then
Bernie
8. Re: Floppy_Is_Blank Function Request
Hello,
>errrrr.............
>will that take into account, assuredly, hidden/system files being
>present on that floppy????
>im thinking it won't actually :/
>--Hawke'
Is dir() capable of seeing hidden and system files?
Maybe there's a /h and/or /s arguments that could be applied.
I haven't tested it but maybe this would work..?
if atom(dir("a:*.* /h /s")) then
and then again, maybe not.
later,
Lewis Townsend
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9. Re: Floppy_Is_Blank Function Request
- Posted by Ad Rienks <kwibus at ZONNET.NL>
Aug 30, 2000
-
Last edited Aug 31, 2000
Hello Hawke',
I think I tested all the possibilities you mentioned, and the statement
seems to behave as expected. BTW, 'system' and 'hidden' are only attributes
of files, in my opinion. Windows can fool you, as these kind of files are
not displayed in Windows Explorer, unless you set some checkboxes.
Cheers, Ad
----- Oorspronkelijk bericht -----
Van: Hawke' <mikedeland at NETZERO.NET>
Aan: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Verzonden: woensdag 30 augustus 2000 11:25
Onderwerp: Re: Floppy_Is_Blank Function Request
> errrrr.............
> will that take into account, assuredly, hidden/system files being
> present on that floppy????
> im thinking it won't actually :/
> --Hawke'
>
> > Hello ck,
> > Use the function
> > if atom(dir("a:*.*")) then
> > If the disk is empty, even if there is no disk in the 'a' drive, dir()
> > returns -1. This is an atom; otherwise the dir() function returns a
> > sequence.
> >
> > Hope this helps, Ad
>
>
> _______________________________________________
> Why pay for something you could get for free?
> NetZero provides FREE Internet Access and Email
> http://www.netzero.net/download/index.html
10. Re: Floppy_Is_Blank Function Request
- Posted by Ad Rienks <kwibus at ZONNET.NL>
Aug 30, 2000
-
Last edited Aug 31, 2000
Hello Bernie,
It works too, but isn't the /A a reminder from DOS days. In the Euphoria
function, it does not seem to be necessary.
Actually, the Euphoria dir() is an inbuilt machine_func(22, name) that
allows wildcards. Maybe Robert can enlighten this further.
Cheers, Ad
----- Oorspronkelijk bericht -----
Van: Bernie <xotron at PCOM.NET>
Aan: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Verzonden: woensdag 30 augustus 2000 17:04
Onderwerp: Re: Floppy_Is_Blank Function Request
> Correction I mean this should work
>
> if atom(dir("/A a:*.*")) then
>
> Bernie
11. Re: Floppy_Is_Blank Function Request
errrrrrrrrrrrrrrrrrrrrrrr
hidden and system are attributes of files, yes...
that is a simple fact, and unfortunately, windows and
dos wont care if you opine that in a different manner..
if your opinion is that hidden and system are NOT
attributes, windows and dos will simply ignore your
opine and continue onwards ....
the problem lies in the fact that windows is nothing more
then a multitasking shell for DOS...
if u open a dos prompt window, or reboot into dos mode,
and u navigate to the root of your C drive, and at the
prompt you type "dir" (or dir /p for pausing if it is long)...
take a GOOD look, i'll wager you do NOT see io.sys
listed in that listing...explorer is nothing more then a fancy
front end GUI for examining files and directories on your system...
my worries were how the dir() function in EU was implemented
as there are little nuances that could be in the implementation
of that function by rob...did he call the bios directly? did he
just do a shortcut like:
function dir(object param)
return system("dir" & param)
end function
(warning, that code wont work cuz system() needs another argument
and im too lazy to look up that argument)
(u get the idea im sure)
so the issue of dir() looking for hidden/system files is valid as there
could be many different ways that rob could have implemented it...
in another post, someone mentioned that dir() used as proposed was
tested and seemed to find hidden/system files, which is good thing...
in another post, someone mentioned using chkdsk and comparing
the max bytes to the used bytes....that may not work either because
when u have bad sectors on the floppy, those values will not be the
same even when the disk is for sure empty....you would have to
grep the bad sectors line and how many bytes were used in bad
sectors and apply that to your calculations...
hope this helps--Hawke'
----- Original Message -----
From: Ad Rienks <kwibus at ZONNET.NL>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Wednesday, August 30, 2000 11:22 AM
Subject: Re: Floppy_Is_Blank Function Request
> Hello Hawke',
>
> I think I tested all the possibilities you mentioned, and the statement
> seems to behave as expected. BTW, 'system' and 'hidden' are only
attributes
> of files, in my opinion. Windows can fool you, as these kind of files are
> not displayed in Windows Explorer, unless you set some checkboxes.
>
> Cheers, Ad
>
> ----- Oorspronkelijk bericht -----
> Van: Hawke' <mikedeland at NETZERO.NET>
> Aan: <EUPHORIA at LISTSERV.MUOHIO.EDU>
> Verzonden: woensdag 30 augustus 2000 11:25
> Onderwerp: Re: Floppy_Is_Blank Function Request
>
>
> > errrrr.............
> > will that take into account, assuredly, hidden/system files being
> > present on that floppy????
> > im thinking it won't actually :/
> > --Hawke'
> >
> > > Hello ck,
> > > Use the function
> > > if atom(dir("a:*.*")) then
> > > If the disk is empty, even if there is no disk in the 'a' drive, dir()
> > > returns -1. This is an atom; otherwise the dir() function returns a
> > > sequence.
> > >
> > > Hope this helps, Ad
> >
> >
> > _______________________________________________
> > Why pay for something you could get for free?
> > NetZero provides FREE Internet Access and Email
> > http://www.netzero.net/download/index.html
>
_______________________________________________
Why pay for something you could get for free?
NetZero provides FREE Internet Access and Email
http://www.netzero.net/download/index.html
