perl -Mstrict -wle 'print 82.46.67.88.":1"'
output
R.CX:1 # chr(82) . chr(46) etc.
I noticed that in order to cause this behavior, there must be at least three numbers. Where is perldoc mentioned?
These are the “version lines” that first appeared in 5.6 ( http://perldoc.perl.org/perl56delta.html#Support-for-strings-represented-as-a-vector-of-ordinals )
I thought they were deprecated and put a few versions back, but apparently they are still around. http://perldoc.perl.org/perldata.html#Scalar-value-constructors