For a number of languages that are not supported in CLion, for example, PHP, Ruby, and Java, the IDE still provides syntax highlighting to improve your coding experience if you occasionally need to examine such code. For more information about describing languages using the TextMate grammar, refer to the TextMate official website.
Syntax highlighting for these languages is based on TextMate grammars, and CLion is shipped with a collection of grammar files for different languages. All the available bundles are listed on the Editor | TextMate Bundles page of the Settings dialog (CtrlAlt0S).
If more profound support for a chosen language is provided through the IDE itself or a plugin (like Rust), it’s prioritized over a TextMate Bundle.
When a TextMate bundle for a particular language is enabled, CLion provides syntax highlighting for the file types registered with the bundle. For example, in case of Ruby:
Using a custom TextMate bundle
Suppose you want CLion to highlight syntax of the OCaml files. For this purpose, you have already downloaded the OCaml TextMate Bundle. It now resides on your hard disk, and you only have to import this bundle into CLion.
In the Settings dialog (CtrlAlt0S), select Editor | TextMate Bundles.
Click and locate the desired bundle on your disk:
Click OK to apply the changes. The OCaml bundle appears in the list of recognized bundles:
Once a TextMate bundle is added, syntax highlighting is available for the file types registered with the bundle. Here's a sample OCaml code fragment that uses the TextMate bundle we have added:
and locate the desired bundle on your disk:
