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How can I create a custom syntax highlighter to use with Jekyll on GitHub Pages?

user2740741
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1 Answers1

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Jekyll 3 and above is using rouge (An elegant, extendable code highlighter written in pure Ruby.).
See also "Syntax Highlighting in Jekyll".

In order to add a custom syntax highlighter, you submit a pull request to that project. As an example, consider the PR 650: LiveScript support, for issue 309.

Once that PR is merged, you can use it on GitHub pages.

Note 2022, as noted in rouge-ruby/rouge issue 1902:

The old website rouge.jneen.net was deployed on the Heroku platform. Since the Free tier has been retired, our application is no longer available. I believe @jneen is looking at hosting the site somewhere else.

VonC
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  • end of 2022 and the Rouge link is broken (most likely because Heroku is no longer offering free tiers) – J.R. Bob Dobbs Dec 29 '22 at 16:47
  • @J.R.BobDobbs Thank you for the update. I have edited the answer to explain the situation, as well as restored the deprecated link. – VonC Dec 29 '22 at 16:57