[PD] A couple new list-abs

[Roman Haefeli]

hi all and frank

i just made another abstraction today, which might be useful for others
as well. i called it [list-match]. it finds a given sequence of numbers
in a number stream and outputs a bang on a match.

http://romanhaefeli.net/software/pd/list-match.tar.gz

however, i am not quite sure, if it really deserves the list- prefix,
since it expects a number stream and not a list on its left inlet.
though, it could be easily modified to find a certain sequence in a list
of numbers instead of a number stream. don't know what is generally more
useful.

roman



On Mon, 2008-03-03 at 03:30 +0100, Patrice Colet wrote:
>   Hello,
> thank you for this usefull [list-range], unfortunately [list-zip] isn't 
> pd-vanilla compatible, I tried to replace [initbang] with [loadbang], 
> but you might know that it wouldn't work in a parent patcher.
> 
> PC.
> 
> Luke Iannini (pd) a écrit :
> > Hallo,
> > Here're two new list-abs, list-range and list-zip.
> > 
> > list-range spits out sequences from n1 to (n2 - 1), optionally
> > separated by a positive or negative "step" interval m.  It's based on
> > Python's range() function[1].  You can either use it as a shortcut by
> > specifying creation arguments and [bang(ing it, or send in one, two or
> > three arguments to get a new sequence (n1 (for 0...n1-1), n1 n2, or n1
> > n2 m).
> > 
> > list-zip interleaves lists of equal length to produce a new list.  It
> > defaults to two lists, but uses dynamic patching to modify its inlets
> > to accept an arbitrary number of lists.  So, for example, [1 2 3 4(
> > and [A B C D( would become [1 A 2 B 3 C 4 D(.  list-zip is based on
> > Python's zip() function[also 1].
> > 
> > Regrettably[2] list-zip requires [initbang] for its dynamic inlet
> > creation, but list-range is a purely vanilla affair, requiring only
> > the existing list-abs from Frank's library.
> > 
> > Inside the help for list-zip, you'll find a recreation of
> > list-enumerate using 4 objects.
> > 
> > Cheers
> > Luke
> > 
> > [1] http://docs.python.org/lib/built-in-funcs.html (sorry, they don't
> > have links to the individual functions)
> > [2] only regrettable that this isn't included in vanilla yet!
> > 
> > 
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