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Re: Golf: RPN calculator

by jmcnamara (Monsignor)
on May 11, 2001 at 12:17 UTC ( #79658=note: print w/replies, xml ) Need Help??


in reply to Golf: RPN calculator


This was a great idea for a game of Golf. Recent outings have been too much like mini CS projects. Sorry Masem. ;-)

This uses your methodology. There are 69 chars in the body of the program. It passes -w and strict. It also handle negative numbers:
perl -le'/^\D$/?($_.=pop@_)&&push@_,eval pop(@_).$_:push@_,$_ for@ARGV +;print@_'

I recently spent two months of my spare time implementing a type of RPN parser using Parse::RecDescent. Obviously I was taking the wrong approach. :-)

John.
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[Lady_Aleena]: shmem, there is MP3::Info/
[Discipulus]: too much complex qx when you know perl are better to avoid
[marioroy]: might need to backslash \'*.mp3\'
[marioroy]: It's a quoting issue inside qx. It's File::Find or qx. LA chooses qx. Almost there.
[marioroy]: Also \"%S\\\n\" oh my, not fun.
[Discipulus]: good night folks
[marioroy]: I will make a mp3info script that takes the -p "%S\n" args and test qx. I'm on the road, so will come back.
[marioroy]: All because File::Find is not fun for LA.
[marioroy]: good night Discipulus.
[Discipulus]: perl dreams to you all

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