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Groups > comp.sys.acorn.programmer > #5504
| From | A. N. Other <ANOther@argonet.co.uk> |
|---|---|
| Newsgroups | comp.sys.acorn.programmer |
| Subject | Re: how to use a sysvar in Basic |
| Date | 2018-09-04 18:11 +0100 |
| Organization | None |
| Message-ID | <57325b1e4cANOther@argonet.co.uk> (permalink) |
| References | <d1fd503257.jim@6.abbeypress.net> |
In article <d1fd503257.jim@6.abbeypress.net>,
Jim Nagel <jimnewsm13c@abbeypress.co.uk> wrote:
> I'm working on a wee Basic program and at one stage I need to compare
> mystring$ to a system variable websiteroot$dir.
[snipped]
> In my Basic program, lines like this work with no problem:
> headfile$ = "<websiteroot$dir>.fefi.fofum.head"
> mytail% = OPENIN "<websiteroot$dir>.fefi.fofum.tail"
> But this line produces an error "Unknown or missing variable":
> PRINT websiteroot$dir
> Same error whether or not I use anglebrackets <websiteroot$dir>.
> Leads me to think there's something fundamental I need to understand
> about the use of sysvars within Basic. Web search brought up various
> articles and PRM references but nothing seemed to the point. Can
> anyone enlighten me, please?
[snipped]
> Must I convert the contents of <websiteroot$dir> to a conventional
> Basic string? Is there an existing elegant way of doing so?
Am I overlooking something obvious, or can you not simply do:
PRINT "<websiteroot$dir>"
or
root$ = "<websiteroot$dir>"
> Otherwise, I'll see where I can go from this within Basic:
> *show websiteroot$dir { > tempfile }
> (Don't know where I ever found that "{ > xyz }" business. Found no
> mention in the new User Guide or online, probably not easy to index.
> I vaguely remembered it from some dark mental crevice and played with
> spaces etc until, surprise, it worked. What's it called?)
Redirection, and I think it *is* in the RO5 User Guide.
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how to use a sysvar in Basic Jim Nagel <jimnewsm13c@abbeypress.co.uk> - 2018-09-04 16:20 +0100
Re: how to use a sysvar in Basic Steve Drain <steve@kappa.me.uk> - 2018-09-04 18:00 +0100
Re: how to use a sysvar in Basic Jim Nagel <jimnewsm13c@abbeypress.co.uk> - 2018-09-04 18:54 +0100
Re: how to use a sysvar in Basic Julian Fry <julianfry@orpheusmail.co.uk> - 2018-09-08 21:03 +0100
Re: how to use a sysvar in Basic Jim Nagel <jimnewsm13c@abbeypress.co.uk> - 2018-09-05 17:13 +0100
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-05 20:19 +0100
Re: how to use a sysvar in Basic Steve Drain <steve@kappa.me.uk> - 2018-09-06 11:19 +0100
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-08 10:32 +0100
Re: how to use a sysvar in Basic Steve Drain <steve@kappa.me.uk> - 2018-09-08 14:56 +0100
Re: how to use a sysvar in Basic Alan Adams <alan@adamshome.org.uk> - 2018-09-08 19:39 +0100
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-10 07:27 +0100
Re: / not (OT) Jim Nagel <jnews18c@abbeypress.co.uk> - 2018-09-10 11:37 +0100
Re: / not (OT) News <chrisjohnson@spamcop.net> - 2018-09-10 14:34 +0100
Re: how to use a sysvar in Basic Alan Adams <alan@adamshome.org.uk> - 2018-09-08 11:20 +0100
Re: how to use a sysvar in Basic Steve Drain <steve@kappa.me.uk> - 2018-09-08 14:40 +0100
Re: how to use a sysvar in Basic "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-09-04 18:16 +0100
Re: how to use a sysvar in Basic Alan Adams <alan@adamshome.org.uk> - 2018-09-04 22:04 +0100
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-05 08:03 +0100
Re: how to use a sysvar in Basic Martin Wuerthner <spamtrap@mw-software.com> - 2018-09-05 14:39 +0200
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-05 19:45 +0100
Re: how to use a sysvar in Basic Steve Drain <steve@kappa.me.uk> - 2018-09-06 11:24 +0100
Re: how to use a sysvar in Basic "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-09-05 20:56 +0100
Re: how to use a sysvar in Basic svrsig <chris@svrsig.org> - 2018-09-05 20:13 -0700
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-06 07:21 +0100
Re: how to use a sysvar in Basic A. N. Other <ANOther@argonet.co.uk> - 2018-09-04 18:11 +0100
Re: how to use a sysvar in Basic Jim Nagel <jimnewsm13c@abbeypress.co.uk> - 2018-09-04 18:42 +0100
Re: how to use a sysvar in Basic Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-09-05 08:08 +0100
Re: how to use a sysvar in Basic jgh@mdfs.net - 2018-09-06 17:12 -0700
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