Very nice, thank you!
A note on the quoting of the "command line": The code that parses the command line is currently kind of simplistic. If an argument is surrounded by double quotes, then the only two things inside those quotes that get special treatment are double-backslashes (\\, aka "\\\\"), which produce a single backslash, and \", which produces a double-quote; all other characters, including single quotes, are not touched. The same goes for arguments surrounded by single quotes, where double quotes are not touched. (Update: I've now updated the documentation to describe this.)
So something like perl -e 'print "Foo\'Bar"' is fine, the equivalent Perl script is print "Foo'Bar".
