Attach a custom syntax checker to my custom-made DSL file?

I use a simple format to describe some rules in the app, it's a text file with some structure which is nor JS, neither HTML or anything else.

I have created a utility that can parse and check the syntax of this file and return a report, like JSLint, ESLint or other similar tools.

Now, is it possible to somehow connect the utility to WebStorm without having to write a dedicated plugin so that to highlight the issues in the file in real-time, like how I would do with linters?

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it's possible using ExternalAnnotator, for example (see, for example). But still you will need developing a custom plugin for this. Developing a custom inspection is another way to go ( If you have any questions, please feel free to ask them at


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