Perl: Missing operators, fix END section, operators style, heredoc languages, POD fix

Vincenzo Buttazzorequested to merge
buttazzo/syntax-highlighting:master into master

I made some improvements to the Perl syntax highlight.

Missing operators

The xor and isa operators

fix END

End sections were not working because of wrong rule positioning

fat comma and other operators style

Operators were not highlighted.

And the fat comma => is now bold.

Heredoc

The PHP highlight use some nice embedding for some languages, so I added it for Perl:

  • HTML
  • MYSQL
  • Markdown

POD keyword fix

POD comments where simple comments because of broken rule. Now the few keywords used to control formatting have style.

Modules import style

The "use" function had no special style and the Perl version selector use v5.36; looked broken. Now things are clearer.

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