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RegexBuilder infinite loop when nullable capture starts with NegativeLookahead

Status: Open.

#865 In swiftlang/swift-experimental-string-processing;

· ekassos opened on Jun 20, 2026

Slow regex performance

Status: Open.

#853 In swiftlang/swift-experimental-string-processing;

· stefanspringer1 opened on Feb 16, 2026

Add a CODEOWNERS file to this repo

Status: Open.

#848 In swiftlang/swift-experimental-string-processing;

· parispittman opened on Jan 6, 2026

Convert closure-based methods to typed throws

Status: Open.

#834 In swiftlang/swift-experimental-string-processing;

· natecook1000 opened on Oct 9, 2025

Log line matcher shows slow performance in failure

performanceMatching time doesn't meet expectationsMatching time doesn't meet expectations

Status: Open.

#823 In swiftlang/swift-experimental-string-processing;

· natecook1000 opened on Sep 15, 2025

Regex misses Windows-style newlines

bugSomething isn't workingSomething isn't working

semanticsGrapheme cluster / Unicode scalar differencesGrapheme cluster / Unicode scalar differences

Status: Open.

#822 In swiftlang/swift-experimental-string-processing;

· BigZaphod opened on Aug 15, 2025

Inserting regex into literal regex expressions

enhancementNew feature or requestNew feature or request

swift-evolution-requiredRequires a Swift Evolution proposal and reviewRequires a Swift Evolution proposal and review

Status: Open.

#821 In swiftlang/swift-experimental-string-processing;

· stefanspringer1 opened on Jul 15, 2025

Slow Swift.Regex for certain pattern. 9 seconds to parse 20k text.

bugSomething isn't workingSomething isn't working

performanceMatching time doesn't meet expectationsMatching time doesn't meet expectations

Status: Open.

#816 In swiftlang/swift-experimental-string-processing;

· krzyzanowskim opened on Jun 3, 2025

trimmingPrefixOrNil

Status: Open.

#814 In swiftlang/swift-experimental-string-processing;

· dabrahams opened on May 7, 2025

Status of this work not well-represented

Status: Open.

#802 In swiftlang/swift-experimental-string-processing;

· dabrahams opened on Jan 16, 2025

When passing a collection to Set.contains(_:), forward to Set.isSuperset(of:)

Status: Open.

#796 In swiftlang/swift-experimental-string-processing;

· marcomasser opened on Jan 3, 2025

Regex match hangs on non-matching string

Status: Open.

#793 In swiftlang/swift-experimental-string-processing;

· bgreenlee opened on Dec 19, 2024