calc.pl - Simple perl REPL calculator
$ calc.pl
calc> 2 * pi
6.2831852
calc> @ * 10
62.831852
calc> $5,300.27 * 2.03
$10,759.5481Based upon the sample code from https://metacpan.org/pod/Term::ReadLine
To get readline working properly on OSX, I installed Term::ReadLine::Gnu following the instructions from http://blogs.perl.org/users/aristotle/2013/07/easy-osx-termreadlinegnu.html
Readline is already installed, but the Makefile doesn't pick it up, so make homebrew install some temporary symlinks.
dave> brew install readline
dave> brew link --force readline
dave> sudo su -
root> cpan Term::ReadLine::Gnu
root> exit
dave> brew unlink readlineAlso needs the non-core File::HomeDir for storing the history file.
This script is free software; you can redistribute it and/or modify it under the same terms as perl itself.