From: Pawel Kmiotek
Subject: Little problem with converting
Date: 
Message-ID: <8jr1v3$32f$1@galaxy.uci.agh.edu.pl>
Please help me.

I read something like this ( for example ) from con:

5+4*8+(9-5)*(4-5)+4/5+5*(7*(8/4)+4)

and i have to convert it to list :
( 5 + 4 * 8 + ( 9 - 5 ) * ( 4 - 5 ) + 4 / 5 + 5 * ( 7 * ( 8 / 4 ) + 4
)  )

how sholud i do it ?

                        Pawel Kmiotek
From: Barry Margolin
Subject: Re: Little problem with converting
Date: 
Message-ID: <rZ785.39$VE5.787@burlma1-snr2>
In article <············@galaxy.uci.agh.edu.pl>,
Pawel Kmiotek  <······@ernie.icslab.agh.edu.pl> wrote:
>Please help me.
>
>I read something like this ( for example ) from con:
>
>5+4*8+(9-5)*(4-5)+4/5+5*(7*(8/4)+4)
>
>and i have to convert it to list :
>( 5 + 4 * 8 + ( 9 - 5 ) * ( 4 - 5 ) + 4 / 5 + 5 * ( 7 * ( 8 / 4 ) + 4
>)  )
>
>how sholud i do it ?

Is this homework?

-- 
Barry Margolin, ······@genuity.net
Genuity, Burlington, MA
*** DON'T SEND TECHNICAL QUESTIONS DIRECTLY TO ME, post them to newsgroups.
Please DON'T copy followups to me -- I'll assume it wasn't posted to the group.
From: Tim Bradshaw
Subject: Re: Little problem with converting
Date: 
Message-ID: <ey3itumyik5.fsf@cley.com>
* Pawel Kmiotek wrote:

> Please help me.
> I read something like this ( for example ) from con:

> 5+4*8+(9-5)*(4-5)+4/5+5*(7*(8/4)+4)

> and i have to convert it to list :
> ( 5 + 4 * 8 + ( 9 - 5 ) * ( 4 - 5 ) + 4 / 5 + 5 * ( 7 * ( 8 / 4 ) + 4
> )  )

> how sholud i do it ?

I believe the preferred approach is to get your students to ask on
newsgroups.

--tim
From: vsync
Subject: Re: Little problem with converting
Date: 
Message-ID: <877lb2vmi3.fsf@piro.quadium.net>
Tim Bradshaw <···@cley.com> writes:

> > I read something like this ( for example ) from con:
> 
> > 5+4*8+(9-5)*(4-5)+4/5+5*(7*(8/4)+4)
> 
> > and i have to convert it to list :
> > ( 5 + 4 * 8 + ( 9 - 5 ) * ( 4 - 5 ) + 4 / 5 + 5 * ( 7 * ( 8 / 4 ) + 4
> > )  )
> 
> > how sholud i do it ?
> 
> I believe the preferred approach is to get your students to ask on
> newsgroups.

I'm still learning myself (always a student, right?) and I was going
to tackle it myself as an exercise.  I thought it involved converting
from infix to prefix or something interesting.  Then I saw it was just
tokenizing strings.  That's not fun at all.

-- 
vsync
http://quadium.net/ - last updated Fri Jun 30 22:55:16 MDT 2000
(cons (cons (car (cons 'c 'r)) (cdr (cons 'a 'o))) ; Orjner
      (cons (cons (car (cons 'n 'c)) (cdr (cons nil 's))) nil)))
From: Robert Monfera
Subject: Re: Little problem with converting
Date: 
Message-ID: <39612090.4F2BED3B@fisec.com>
vsync wrote:

> Then I saw it was just tokenizing strings.  That's not fun at all.

Maybe the original(?) poster had misunderstood the exercise.

Robert
comp.lang.lisp / 2000 / jul