Code display plugin on ClassicPress.net not working

[klein-the-donkey]

Is the plugin broken? I can't see the button in the editor and the code that's normally displayed like:

Is now displayed like:

[timbocode]

As I recall, James had to remove the Crayon Syntax Highlighter plugin because it's not PHP7 compatible and was throwing numerous errors. @nylen should be able to confirm.

[nylen]

Yes, that's right. It's also pretty over-large for what it was doing. I'd be open to installing a lightweight replacement if you know of one.

[johnalarcon]

I've worked on the plugin to bring it to PHP 7 compatibility. Also, if you remove the 50 needless languages, it's much slimmer; this involves just removing the directories. For the ClassicPress blog, leaving in only html, xml, apache, php, sql, css, javascript, and json would probably cover every last need. Removing the extras is 1/3 of the plugin.

[johnalarcon]

I've built a slim and performant (250K footprint, 55K output) Syntax Highlighter plugin based on Prism. It still has one issue, but, may become a viable option for ClassicPress.net. Please give it a test-drive.

@nylen, I proposed a solution on this issue; is this the correct approach?