Re: [sc-users] Pattern question

[nescivi <nescivi@xxxxxxxxx>]

Hiho,

On Wednesday 11 March 2009 08:49:38 Julian Rohrhuber wrote:
> >Hiho,
> >
> >is there already another way to do this?
>
> no, there isn't -
> It seems to me that "at" is already used in node proxy to index slots
> - so that this usage assumes too much.

ok.

> I think better this should be implemented in Pbind and in Object:
>
> + Object {
> 	atKey { |key| ^nil }
> }
>
> + Pbind {
> 	atKey { |key|
> 		patternpairs.pairsDo { |k, val|
> 			if(k === key) { ^val }
> 		};
> 		^nil
> 	}
> }
>
> then you write Pdefn(\maypattern).source.atKey(\freq)
>
> would this be reasonable, or still too long?
>
> PatternProxy:atKey could be defined then, still.

have a PatternProxy:atKey that forward to the Pbind one would be useful, to 
keep things short.

Should we add this stuff to the livecode quark?

sincerely,
Marije

> >// get the frequency value pattern from a Pdef:
> >Pdef( \mypattern ).at( \freq )
> >
> >// using this extension
> >+ Pdef{
> >	at{ |key|
> >		var ret;
> >		try{
> >			ret = source.patternpairs.clump(2).detect({
> >
> >|it| it[0] == key })[1]
> >
> >		}{ ret = nil };
> >		^ret;
> >	}
> >}
> >
> >
> >sincerely,
> >Marije

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