an interesting challenge.

[Joshua Zeidner]

Sorry, I patented the idea of using regular expressions for solving
Technomages problem.  You owe me 4 million dollars.

 jmz


;you can't expect a linux geek to back down from a regex challenge


On 4/4/06, Jeremy C. Reed <reed at reedmedia.net> wrote:
>
> On Tue, 4 Apr 2006, Josh Zeidner wrote:
>
> > josh at zeidner:/usr/share/dict$ perl -n -e 'if ( $_ =~ /\A[bdfeca]+\Z/ )
> > {  print "$_" }' < american-english
>
> Be sure to be at least four characters.
>
> > > using bdfeca:
> > > construct word strings in a list using only these letters in any
> > > combination 4 characters or longer. use of the number 1 as a space
> filler
> > > is permitted.
>
> I am not sure what the "space filler" means. I guess it means putting
> multiple words together.
>
> > > example:
> > > dead1beef
>
> Without using any "space filler" ...
>
> $ cat /usr/share/dict/* | egrep -a '^[bdfeca]{4,}$' | sort -u | wc -l
>       56
>
> Jeremy C. Reed
>
> echo ':6DB6=88>?;@69876tA=AC8BB5tA6487><' | tr '4-F' 'wu rofIn.lkigemca'
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