Perl 7 Ready

Global edit your Perl scripts, packages and .cgi's to make them Perl 7 ready !

• Insert the Perl 7 Ready Pragma in every script/package, e.g. use utf8; use strict
• Edit the code to use new features: -indirection (little change), +signatures (big improvement)
• Optional Extras: While you're editing every file, remove windows \r and insert a standard copryright section at the top

OK here we go.

Code Change: no feature qw( indirect )

new fred( $a ) becomes fred->new( $a )

Indirect calls are removed from your code.

Gotchas:

• look out for the word new in inlined HTML
• need v5.32 for this pragma, the package->new() works, just not the pragma, so you r code is fixed, but the pragma's commented out.

Code change: use signatures

sub fred { 
   my ( $self, $a ) = @_;

becomes

sub fred ( $self, $a ) {

All subroutine calls are fixed as above, and 2 pragmas added (allow signatures, remove experimantal warning when using them). This is an excellent new feature. Should have started using it ages ago.

Gotchas

• look out for sub new() in your code, it should be sub new( $class )
• look out for optional args, it should be e.g. sub fred ( $needed, $optional="" )
• if you do something like sub fred { $self = shift; my ($x) = @_ my regex wont work -you'll have to hack the code

Pragma held back for now: use open qw(:std :utf8);

This broke everything for me, I suspect cos everything was double (de)coded. More thought needed!

So this pragma is commented out by default

Gotchas:

• use open is universal, its a per (all files/packages) thing, have it in 1 package, then its everywhere.

Insert Perl 7 Pragmas

use utf8; use strict;l use warnings

Hopefully not contraversial. This script just makes sure these pragmas are there.

Optional: insert a preamble (comments at the start)

This is an extra, a series of comments at the start of each file, e.g. # (c) you, your website, your email

Optional: fix windows line endings

While editing every file... Fix line endings (remove \r (^M) chars) - comment this out of the code if you don't want it

See Also

perltidy

How to use

copy perl7ready.conf.example to perl7ready.conf and edit it

Then run the script on a smaple script of yours

perl7ready /dir /another-dir

You'll probably have to tweak what I've done, especially to auto-fix signatures

You'll have to test you code, especially with the signature changes, e.g. its sub new ($class) not sub new ()

Feedback

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