JS syntax highlighting turning off and on

[tristil]

Every time I save this file the syntax highlighting on this JS file toggles between the theme (Gruvbox Dark Medium) and something else. It only happens if you have the import statement in the file.

[reed-jones]

I have this too using default (laserwave I think). it seems to fully toggle syntax highlighting with every save

[mabuchner]

Could be related to or maybe is the same as #2027.

[bpingris]

Hey just out of curiosity is there any ideas on how to solve this issue ? Will it be fixed for the current sprint or it's not a priority ? Thanks!

[marcinkoziej]

A minimal example where clearly it's hard to figure out ( ) inside [ ] inside regular expression.

A harder example is the killer url regexp:

export const urlPattern = /https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)/;