Support RegExp v flag

[sosukesuzuki]

Syntax name

RegExp v flag with set notation + properties of strings

Syntax proposal URL

https://github.com/tc39/proposal-regexp-v-flag

Example code

/[\p{Decimal_Number}--[0-9]]/v.test(str);

Implementation Checklist

• Ecma262 update: Normative: Add RegExp v flag with set notation and properties of strings tc39/ecma262#2418
• ESTree update: N/A
• Acorn update: Add support for ES2024 Regex v flag acornjs/acorn#1218
• eslint-visitor-keys update: N/A
• espree update: feat: Support ES2024 and regexp v flag espree#575
• regexpp update: feat: add support v flag eslint-community/regexpp#82
• eslint-scope update: N/A
• eslint update:
  • no-control-regex feat: no-control-regex support v flag #17405
  • no-empty-character-class feat: no-empty-character-class support v flag #17419
  • no-invalid-regexp feat: no-invalid-regexp support v flag #17404
  • no-misleading-character-class feat: no-misleading-character-class support v flag #17406
  • no-regex-spaces feat: no-regex-spaces support v flag #17407
  • no-useless-backreference feat: no-useless-backreference support v flag #17408
  • no-useless-escape feat: no-useless-escape support v flag #17420
  • prefer-named-capture-group feat: prefer-named-capture-group support v flag #17409
  • prefer-regex-literals feat: prefer-regex-literals support v flag #17410
  • require-unicode-regexp feat: require-unicode-regexp support v flag #17402

Participation

• I am willing to submit a pull request for this change.

Additional comments

prev issue: #17199

[mdjermanovic]

Thanks! Correct, there's no need to update estree, eslint-visitor-keys and eslint-scope. I just added regexpp to the list. cc @ota-meshi

[nzakas]

The change to Espree has been completed, so I checked that off the list.

[mdjermanovic]

I'm working on no-empty-character-class.

[ota-meshi]

The no-useless-escape rule seems to have false positives.

/[\-]/v; // -> Fix to `/[-]/v`, but it SyntaxError

I will try to fix it.

[nzakas]

It looks like all of the checklist items are complete, so closing.