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Re:Challenge: Implement CLI interface like that? by riffraff on Sunday June 17, 2012 @10:43AM (#4123036)
this seems analogous to the old Getopt::Declare in perl[0], maybe you can et some ideas from that

http://search.cpan.org/~fangly/Getopt-Declare-1.14/lib/Getop...

Re:Challenge: Implement CLI interface like that? by halst on Sunday June 17, 2012 @10:47AM (#4123042)
Getopt::Euclid from CPAN is also very similar.