Wrong syntax highlighting for Groovy GStrings when interpolating values

[FranzMartyn]

Describe the bug
Sometimes, codewars' code runner gets the syntax highlighting for GStrings wrong when they contain interpolated values

Code runner does this:

Expected behavior

instead of this (example from Intellij Idea):

To Reproduce

• Create a Kumite in Groovy
• Create variables and interpolate them into a String

Kumite: https://www.codewars.com/kumite/66cc60e3d8acf6782ef5515c

Browser

• OS: Windows 10 Pro, Version 22H2, Build 19045.4780
• Browser: Chrome
• Version: 128.0.6613.84 (Official Build) (64-Bit)

[hobovsky]

IIRC, syntax highlighting is done with capabilities of the CodeMirror 5 editor, and Codewars does not have any special control over it. Ideally this problem would be resolved by submitting a PR to CodeMirror, so Codewars could later use the fixed version.

Problematic part can be that CW uses CodeMirror 5, which is not the latest version. I do not know if it still accepts fixes and improvements.

[FranzMartyn]

Are there any plans on updating to a later version of CodeMirror or is there no need for it?

[hobovsky]

I am not aware of any.

[FranzMartyn]

Seems like it's fixes now

codemirror/legacy-modes@2675b58

[hobovsky]

I will check what has to be done to make sure that CW uses the fixed mode.

[FranzMartyn]

An update to this issue:

@marijnh created this commit to codemirror/legacy-modes which is also present in codemirror/codemirror5