The part (+&(*...@#) -.&({."1 pairs)) is brilliant.
R.E. Boss
> -----Oorspronkelijk bericht-----
> Van: [email protected] [mailto:programming-
> [email protected]] Namens Henry Rich
> Verzonden: donderdag 8 oktober 2009 0:11
> Aan: Programming forum
> Onderwerp: Re: [Jprogramming] Balanced parens
>
> One-pass version:
>
> pairs =. _2 ]\ '()[]{}'
> remnant =: (2&}.)^:(pairs e.~ 2&{.)@,/@(#~ e.&(,pairs))
> balanced =: (+&(*...@#) -.&({."1 pairs))@remnant
>
> Henry Rich
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