Contact emails...@chromium.org, pth...@chromium.org

ExplainerNone

Specificationhttps://tc39.es/proposal-regexp-modifiers

Summary

RegExp modifiers adds the ability to locally modify the 'i', 'm', and 's'
flags inside a pattern. To enable a flag for a subexpression, use
`(?X:subexpr)` where X is one of 'i', 'm', or 's'. To disable a flag for a
subexpression, use `(-X:subexpr)`. For example, for the case-insensitivity
'i' flag: ``` const re1 = /^[a-z](?-i:[a-z])$/i; re1.test("ab"); // true
re1.test("Ab"); // true re1.test("aB"); // false const re2 =
/^(?i:[a-z])[a-z]$/; re2.test("ab"); // true re2.test("Ab"); // true
re2.test("aB"); // false ```


Blink componentBlink>JavaScript>Regexp
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EJavaScript%3ERegexp>

TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility

No interoperability risk. This is a Stage 3 TC39 proposal.


*Gecko*: Positive TC39 Stage 3

*WebKit*: Positive TC39 Stage 3

*Web developers*: No signals

*Other signals*:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that
it has potentially high risk for Android WebView-based applications?

None


Debuggability

No special needs. JS RegExps already debuggable.


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, ChromeOS, Android, and Android WebView)?Yes

Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
?Yes

In test262: https://github.com/tc39/test262/pull/3960


Flag name on chrome://flags--js-regexp-modifiers

Finch feature nameJavaScriptRegExpModifiers

Requires code in //chrome?False

Estimated milestones
DevTrial on desktop 122
DevTrial on Android 122

Anticipated spec changes

Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github issues
in the project for the feature specification) whose resolution may
introduce web compat/interop risk (e.g., changing to naming or structure of
the API in a non-backward-compatible way).
None

Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5100254548721664

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

-- 
You received this message because you are subscribed to the Google Groups 
"blink-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to blink-dev+unsubscr...@chromium.org.
To view this discussion on the web visit 
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAN-e9e948%3DQSg6zskRN25JGkvxXVP67RDkXHvijzBRueP1DnzA%40mail.gmail.com.

Reply via email to