OpenEuphoria

Re: If/then and sequences...

• Posted by Dan B Moyer <DANMOYER at PRODIGY.NET> Aug 29, 2000
• 460 views

Lewis,

I forgot that any NON-ZERO value will be interpreted as TRUE .  That does
make it easier, thanks.

And your:
> i = find (x, s)
> if i then
>   do_something (s[i])
> end if

looks like it should be an answer in a EuFAQ.

Dan


----- Original Message -----
From: "Lewis Townsend" <keroltarr at HOTMAIL.COM>
To: <EUPHORIA at LISTSERV.MUOHIO.EDU>
Sent: Tuesday, August 29, 2000 5:25 PM
Subject: Re: If/then and sequences...


> Hello Dan,
>
> >     if find(1,KeyPressed) then -- pressed <esc> key ("1")
>
> I do this all the time.
>
> >'course, now that I've said that, I've just realized (from reading the
> >manual!), that that only works if the FIRST item in the sequence is the
> >match (because it returns the *position* of the match, which is taken as
> >"true" by the "if" when it is the first position), so I have to go back &
> >fix that!
>
> Any NON-ZERO value will be interpreted as TRUE so it still
> works. 0 is false (it didn't "find" it) and anything else
> is true and it tells you where.
>
> I do this quite often:
>
> i = find (x, s)
> if i then
>   do_something (s[i])
> end if
>
> >But it's potentially useful anyway.
>
> absolutely.
>
> later,
> Lewis Townsend
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