but nobody care about what you did :) Stef
BTW it would be good to see if your stream implements the same interface as the great GNU smalltalk ones. Sorry I could not resist :( I'm in a really bad mood On Jul 18, 2009, at 12:26 AM, Damien Cassou wrote: > On Thu, Jul 16, 2009 at 5:04 PM, Lukas Renggli<reng...@gmail.com> > wrote: >> ((aCollection readStream >> select: [ :e | ... ]) >> collect: [ :e | ... ]) >> contents >> >> will iterate only once. Furthermore the second approach allows any >> combination of any of the enumeration methods, not just a few >> predefined ones. Also the implementation is less error prone, because >> it just uses the standard methods on collection and stream. > > This is what I did in Nile: > > NSCollectionStream>>select: aBlock > "Returns a new stream which contains a selection of elements in the > receiver. All elements of the receiver are passed to aBlock. This is > really like Collection>>select:." > ^ NSSelectStream selectBlock: aBlock inputStream: self > > NSSelectStream being a kind of stream whose #next method iterate on > the input stream: > > NSSelectStream>>next > self inputStream do: [:each | (selectBlock value: each) ifTrue: > [^ each]]. > > -- > Damien Cassou > http://damiencassou.seasidehosting.st > > "Lambdas are relegated to relative obscurity until Java makes them > popular by not having them." James Iry > > _______________________________________________ > Pharo-project mailing list > Pharo-project@lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project _______________________________________________ Pharo-project mailing list Pharo-project@lists.gforge.inria.fr http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-project
