this has been tested on GetSimple Version 3.3.15, but probably works on others

Steps

  • Download CodeMirror (Source) Syntax Highlighting
  • unzip it in:
    • admin/template/js/ckeditor/plugins/
  • Edit:
    • admin/template/js/ckeditor/config.js
      • Find line with:
        • extraPlugins.push(‘codesnippet’);

      • Add the following line after it.
        • extraPlugins.push(‘codemirror’);

 

Source:

Advertisements