JS/TS syntax highlighting breaks with regex v mode and ? character

[mikestopcontinues]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.89.1
• OS Version: OSX 14.5

Steps to Reproduce:

Syntax highlighting breaks in (at least) three ways:

• Named capture groups: /(?<name>http)/v
• Greedy quantifier: /https?/v

Here's small demos. It breaks much worse than shown...

[RedCMD]

#206580
microsoft/TypeScript-TmLanguage#1022
microsoft/TypeScript-TmLanguage#1021
microsoft/TypeScript-TmLanguage#1006

[vscodenpa]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for similar existing issues. See also our issue reporting guidelines.

Happy Coding!