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JS & TS tokenizers don't support regexes with the "v" flag

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#1,021 1 comment 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
35/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
typescript
Domain
tooling

Research direction

Reproduce the syntax-highlighting failure with const regex = /test/v; in a .js, .ts, .jsx, or .tsx file, then inspect the repository's TypeScript TextMate grammar files. Done means regexes using the v flag retain correct syntax highlighting in the affected file types.

Written by the indexing model from the issue text.

Description

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

  • VS Code Version: 1.87.0-insider
  • OS Version: Darwin arm64 23.4.0

Steps to Reproduce:

  1. Write const regex = /test/v; in any .(j|t)sx? file
  2. See that syntax highlighting breaks

Bildschirmfoto 2024-03-01 um 02 12 50

https://github.com/microsoft/vscode/assets/20396367/1143c919-2ee1-4573-9214-ef94e3e89eaf

Dominant language
TypeScript
Stars
471
Forks
149
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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