note merlyn <blockquote> This refactoring is hardly original thinking. It's been done in the Smalltalk world for years. If you know of an existing writeup of this refactoring for Perl, please provide a reference. </blockquote> Right here, at [id://61262]. But no surprise, since I too have hacked Smalltalk since 1981. {grin} -- <a href="http://www.stonehenge.com/merlyn/">Randal L. Schwartz, Perl hacker</a> 74924 74924