Bug 275672

Summary: Implement RegExp modifiers (stage3 proposal)
Product: WebKit Reporter: Jarred Sumner <jarred>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: karlcow, mark.lam, msaboff, webkit-bug-importer
Priority: P2 Keywords: BrowserCompat, InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://github.com/tc39/proposal-regexp-modifiers

Description Jarred Sumner 2024-06-19 14:36:59 PDT 
The TC39 Regular Expression Pattern Modifiers for ECMAScript proposal has reached stage3 - https://github.com/tc39/proposal-regexp-modifiers

It shipped in V8 in Chrome 125/Edge 125

It adds syntax like the below:

```
/(?i:test)/.test('Test');
```


Currently, this throws an error like:
```
SyntaxError: Invalid regular expression: unrecognized character after (?
```

Related issue: https://github.com/oven-sh/bun/issues/11960
Comment 1 Radar WebKit Bug Importer 2024-06-26 14:37:14 PDT 
<rdar://problem/130622886>