OpenEuphoria

Re: find if any memers of a set are in another set (blank line finder)?

• Posted by cetaylor at compuserve.com Jul 18, 2002
• 532 views

Dan,

A type can be used just like a function that returns TRUE or FALSE.  If it
makes you feel better you can use a function call instead of a type call
(just substitute the word "function" for "type" in the code).  Use it like
this:

    if blank_line(line) then
        -- do this
    else
        -- do that
    end if

Testing character by character will usually be faster than testing the whole
string, since the routine exits at the first non-whitespace character it
finds.

Colin Taylor


----- Original Message -----
From: "Dan Moyer" <DANIELMOYER at prodigy.net>
To: "EUforum" <EUforum at topica.com>
Sent: Thursday, July 18, 2002 5:38 PM
Subject: Re: find if any memers of a set are in another set (blank line
finder)?


>
>
> Colin,
>
> I did think of that, but I haven't made user-defined types before & when I
> read the manual, I thought it said that if your program encounters
something
> in a user-typed variable that isn't the right type, the program *halts* &
> gives an error message.  That wouldn't be what I wanted at all!  Did I
> misunderstand the manual?
>
> Dan
>
>
> ----- Original Message -----
> From: <cetaylor at compuserve.com>
>
> >
> > Dan,
> >
> > Sometimes the direct approach is the simplest and fastest:
> > ---
> > type blank_line(sequence s)
> >     for i = 1 to length(s) do
> >         if not find(s[i], " \t\n") then
> >             return 0
> >         end if
> >     end for
> >     return 1
> > end type
> > ---
> >
> > Colin Taylor
> >
>
>
>
>