filePro Quiz

[Jay Ashworth]

----- Original Message -----
> From: "George Simon" <george at flowersoftusa.com>

> Which lines would evaluate as TRUE below if the user hits <N> at line
> #1?

Ok: it looks like you posted the same thing 3 times; this is the cleanest
one, so I'll reply here.

────────────────────────────────────────────────────────────────────────────────
> 1 ------- - - - - - - - - - - - - - - - -
> TOP ◄ If: @sk="save" ◄
> Then: input popup yn "Do You Want to Exit? (Y/n) " default "Y" ◄

If the user is ever prompted *to* hit N, we must assume this line was
reached with @SK eq "SAVE", or they wouldn't have been prompted.  This 
colors all our other answers, but it makes line 1 TRUE.

> 2 ------- - - - - - - - - - - - - - - - -
> ◄ If: @sk="save" and yn ne "N" ◄
> Then: end ◄

Now, we're assuming that this is *one continuous flow of execution*,
so SK again eq "SAVE", and yn eq "N" so this one's FALSE.

> 3 ------- - - - - - - - - - - - - - - - -
> ◄ If: @sk="save" ◄
> Then: screen ,(@fd) ◄

We're still running, @SK still equals "SAVE", since line 2 is contra-factual,
and nearly caught me: line 1's prompt *says* line 2 should have exited,
but never debug the comments or the prompts, only the code... so this is 
true, and we go back to the field we presumably hit SAVE in, to return
to *HERE* when we hit SAVE again (unless I badly misremember how SCREEN 
works... :-)

> 4 ------- - - - - - - - - - - - - - - - -
> ◄ If: ◄
> Then: end ◄

And what we'll do then is END.  Since there's no conditional on line 4.

> 5 ------- - - - - - - - - - - - - - - - -
> @wlf* ◄ If: ◄
> Then: pushkey "[save]" ◄
> 6 ------- - - - - - - - - - - - - - - - -
> ◄ If: ◄
> Then: end ◄

Both of these clearly evaluate to TRUE as well, but I assume what you
really want to know is what will *happen* when this code interacts with 
the code above.  The answer is, I believe, that the first time you hit it,
you'll start at line 1, and it will trigger again within your SCREEN 
statement, at which time, you'll return to line 4, and just END.

Ken?  How'd I do?  :-)

Cheers,
-- jra
-- 
Jay R. Ashworth                  Baylink                       jra at baylink.com
Designer                     The Things I Think                       RFC 2100
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