The Problem
When you want to use say in your script, you can tell Perl
use v5.10;
I do not like this style, though, because it does not tell me what feature of 5.10 I need to run the script. A slightly better approach is to add a comment:
use v5.10; # say
This is still not much convenient for the author, though: He has to go through several perldeltas to find the first version where the feature appeared. I fined the feature pragma much nicer:
use feature 'say';
Unfortunately, not all new syntactic constructs are introduced through the feature pragma. For example, the defined-or operator (//) cannot be introduced in any other way then
use v5.10; # //
(You can use a higher version, just to confuse the reader more.)
The Solution
I read through the deltas and wrote
Syntax::Construct. It allows you to put the following into your script:
use Syntax::Construct qw( // ... );
And similarly for many features I was able to find in the documentation (see the POD section of the pm file for the full list). Comments or pull requests greatly appreciated.
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