1. random accesss files
- Posted by Bernie Ryan <xotron at bluefrog.com>
Dec 14, 2004
-
Last edited Dec 15, 2004
To the QBASIC Grus:
In qbasic using
OPEN some_filename FOR RANDOM AS #1 LEN = LEN(some_record)
Is any code written in euphoria that emulates this
for DOS ? , How about Windows ?
Bernie
My files in archive:
w32engin.ew mixedlib.e eu_engin.e win32eru.ew
Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan
2. Re: random accesss files
Bernie Ryan wrote:
>
>
> To the QBASIC Grus:
>
> In qbasic using
> OPEN some_filename FOR RANDOM AS #1 LEN = LEN(some_record)
>
> Is any code written in euphoria that emulates this
> for DOS ? , How about Windows ?
>
> Bernie
>
>
> My files in archive:
> w32engin.ew mixedlib.e eu_engin.e win32eru.ew
>
> Can be downloaded here:
> <a
> href="http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan">http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan</a>
>
already written code to access files in a random manner is:
eds using database.e
probably edbgui.e or
eugrid
or tsunami.ew written by Euman
the file of course contains records of fixed size and record keys (not necesary
to be used).
a search on database.e in archives will show more written.
later
rudy
3. Re: random accesss files
- Posted by "Juergen Luethje" <j.lue at gmx.de>
Dec 15, 2004
-
Last edited Dec 16, 2004
Bernie Ryan wrote:
> To the QBASIC Grus:
>
> In qbasic using
> OPEN some_filename FOR RANDOM AS #1 LEN = LEN(some_record)
>
> Is any code written in euphoria that emulates this
> for DOS ? , How about Windows ?
I'm not a QBASIC Guru, but I've been programming in PowerBASIC for DOS
(which is kind of "improved QBASIC" 
) for several years.
In order to emulate access to a so called BASIC "random access" file,
in Euphoria you basically (no pun intended) have to use a combination of
seek() and get_bytes() for reading or seek() and puts() for writing.
DOS or Windows doesn't matter.
A famous BASIC guru is Ethan Winer. The old 'bible' for DOS BASIC
programming, his book "BASIC Techniques and Utilities*, is now available
on the web at no charge:
http://www.ethanwiner.com/
"winer.zip" contains plain text files and program source code as
separate files, "ethan.zip" contains the book in PDF form.
See chapter 6 for "random access" files.
Regards,
Juergen
--
Have you read a good program lately?
4. Re: random accesss files
- Posted by Bernie Ryan <xotron at bluefrog.com>
Dec 15, 2004
-
Last edited Dec 16, 2004
Thanks Rudy and Juergen
Bernie
My files in archive:
w32engin.ew mixedlib.e eu_engin.e win32eru.ew
Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan
