Perl

In Shibuya.pm#12, I have proposed a new syntax to Perl, which allows to give a method an extra block like Ruby.

For example:

File-> open ( '<' , $file ) { my ( $io ) = @_ ; $io -> grep { / ^foo / }-> each { say @_ }; };

This is simply interpreted as:

File-> open ( '<' , $file , sub { my ( $io ) = @_ ; $io -> grep ( sub { / ^foo / })-> each ( sub { say @_ }); });

This is only a sugar to the Perl syntax. That is, we need not add any opcode/ppcode to the core. And this syntax is not conflict with the current syntax. Therefore it does not break backward compatibility.

The patch is available on my github space:

What do you think of it?

(I have posted this idea to p5p RFC: New syntax to pass an extra block to a method - nntp.perl.org)

参考：http://d.hatena.ne.jp/gfx/20090914/1252913765