You've seen Mark Lentczner's Periodic Table of Perl 6 Operators http://www.ozonehouse.com/mark/blog/code/PeriodicTable.html
What about one for Perl 5? Using perlop, opcode.pl and Mark's table I've done step one: drawn up a complete list of Perl 5 operators. All 129 of them [1] in no particular order. http://www.pobox.com/~schwern/tmp/perl5ops I've followed Mark's lead as to what is and is not an op. The -X filetest operators, despite being in perlfunc, are ops. "scalar" is listed to match up with Mark's Contextegens. "ref", "exists", "delete", etc... are listed to match up with the Textaveries. "sub" is not an op, that's syntax... I guess. I've asked Mark what his system was for deciding what is an what is not an op but it seems fairly sensible to me. So... did I miss anything? The big step is to work out operator precedence. perlop has a 24 level precedence table but I suspect that's perhaps the biggest white lie in all the Perl docs. Can Perl 5 even be said to have a simple enough idea of op precedence to apply a number to each op? If so, how does one go about figuring this out? [1] Mark's table shows 180 ops, but its a year out of date. If we remove the bitwise operators we get 153 for Perl 6 and 123 for Perl 5 and things start to look more sane. -- Michael G Schwern [EMAIL PROTECTED] http://www.pobox.com/~schwern ROCKS FALL! EVERYONE DIES! http://www.somethingpositive.net/sp05032002.shtml
