OpenEuphoria

Re: suggestion sequence section

• Posted by gertie at visionsix.com Feb 11, 2003
• 440 views

On 11 Feb 2003, at 11:56, Carl W. wrote:

> 
> Carl W. wrote:
> 
> > gertie at visionsix.com wrote:
> >
> > > s = "abcdefgh"
> > > x = "1..2"
> > > ? s[x]
> >
> > That's equivalent to ? s[{49,46,46,50}] which other people have
> > requested return a sequence containing the 49th, 46th, 46th again and
> > 50th elements of s[].
> >
> > Which interpretation is better? Discuss. :)

I would really like to use the [ ] as delimiters for a range, but the programmer
would need to remember to put them in quotes, anyhow, so i was dropping 
their use in strtok, and using the quotes alone. The problem is when you mix 
what i said and what Lucious said below......

> I know I'm replying to myself here, but a third interpretation occurred to
> me after reading Lucius' response:
> 
> String parse (Kat):
>        s["1..2"]        --> s[1..2]
> 
> Element selection (Lucius):
>        s[{49,46,46,50}] --> s[49] & s[46] & s[46] & s[50]
> 
> Multidimensional access:
>        s[{49,46,46,50}] --> s[49][46][46][50]
> 
> _Now_ which is the better interpretation? Aargh!! :)

In strtok, I went with what i did there. But i also went with what Lucious said.
 There is a problem with typecasting tho, and i am a long way from done with 
it. In my opinion, if i cast a atom, add it to a sequence, i want to be able to 
pick that atom off the front of the sequence as an atom, like:

s = gettok(s,{atom&".."&atom},32)

But both atoms become sequence types when gettok gets them. So i don't 
think your type intseq below will work as (i) expected (but i didn't try, i'm 
*really* distracted atm). Making things more versatile, for ease of use and 
being bulletproof, means using value() and sprintf(), dragging down execution 
speed. Derek tossed me an idea, which i will be trying asap, but prolly not 
today. A local MD was dragging a scalpel thru my back for an hour this 
morning, so you can see i have things on my mind, and taped to my back. 
Sorry about being not up to par for now.
 
Kat