No. What tripped me up was
<?livecode
put "lc version is" && the version & "<br>"
constant x = 4
put "this web page shows the problem" & "<br>"
put "here x = " && x & "<br>"
on somehandler
put "within a handler, x =" && x & "<br>"
end somehandler
somehandler
put "and finally x still =" && x & "<br>"
?>
Constants do not take effect *outside* handlers. You rarely, if ever,
have code outside a handler in "traditional" livecode - but revserver
has changed that, so I think it's a reasonable request to enhance it to
work for non-handle code.
But I am worried there's some obvious case that I haven't thought of
that would prevent that being a good idea. If no-one comes up with a
reason to keep this constraint, I'll submit an enhancement request.
-- Alex.
On 29/05/2012 04:57, dunb...@aol.com wrote:
Alex.
I have found that if you say this:
contant x = 4
on mouseup
answer x
end mouseup
You get a "4"
But, if you place the contstant statement below the handler, you geet "x".
Is this what tripped you up?
Craig Newman
-----Original Message-----
From: Alex Tweedly<a...@tweedly.net>
To: How to use LiveCode<use-livecode@lists.runrev.com>
Sent: Mon, May 28, 2012 7:02 pm
Subject: Constant statement limitations.
The dictionary entry for constant says:
If you place the constant statement in a handler, you can use the
constant anywhere in the handler. If you place the constant statement
in a script outside any handler, you can use the constant anywhere in
the handlers of that script.
NB - "can use the constant anywhere *in the handlers* of that script".
That was a reasonable limitation in traditional Livecode - but seems
less reasonable in the context of revserver. It is (I think) common
practice, and it's certainly possible, to have quite a lot of the
"top-level" code be in the script itself, perhaps with html intermingled
with it, i.e. not be in a handler.
So the obvious, simple code fragment
constant K = 3.14159
put $_POST["diameter"] * K
doesn't give the expected result :-)
Anyone see any reason why constants *shouldn't* be usable outside handlers ?
Thanks
-- Alex.
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