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Issues list

Fix inconsistency in balancing group captures in regex area-System.Text.RegularExpressions
#115743 opened May 19, 2025 by Copilot AI • Draft
1
@stephentoub @Copilot
5
Fix IndexOutOfRangeException in RegexInterpreter.Backtrack method area-System.Text.RegularExpressions
#115733 opened May 19, 2025 by Copilot AI • Draft
1
@stephentoub @Copilot
9
Regex caching strategy for RegexRunner turns allocation-free paths into allocating under contention area-System.Text.RegularExpressions tenet-performance Performance related issue
#115082 opened Apr 26, 2025 by neon-sunset Future
1
Regex engine throws index out of range area-System.Text.RegularExpressions bug help wanted [up-for-grabs] Good issue for external contributors
#114626 opened Apr 14, 2025 by LGL-Ben 10.0.0
1
@Copilot
9
Bug : regular expressions that never stops matching area-System.Text.RegularExpressions bug help wanted [up-for-grabs] Good issue for external contributors
#113734 opened Mar 20, 2025 by longxya 10.0.0
4
[Perf] Linux/arm64: 3 Regressions on 3/16/2025 10:54:17 PM +00:00 arch-arm64 area-System.Text.RegularExpressions os-linux Linux OS (any supported distro) runtime-coreclr specific to the CoreCLR runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#113733 opened Mar 20, 2025 by performanceautofiler bot 10.0.0
@jakobbotsch
3
[Perf] Windows/x64: 1 Regression on 3/6/2025 2:14:44 PM +00:00 arch-x64 area-System.Text.RegularExpressions os-windows runtime-coreclr specific to the CoreCLR runtime tenet-performance Performance related issue tenet-performance-benchmarks Issue from performance benchmark
#113655 opened Mar 18, 2025 by performanceautofiler bot 10.0.0
@MihaZupan
6
BUG? Named numbered groups that are too large cannot be directly accessed area-System.Text.RegularExpressions
#111634 opened Jan 20, 2025 by longxya Future
3
BUG or Feature? Conditional expressions cannot directly contain regex options in .NET 5 and later versions area-System.Text.RegularExpressions
#111633 opened Jan 20, 2025 by longxya Future
3
[Analyzer]: Regex.IsMatch guarding Regex.Match api-approved API was approved in API review, it can be implemented area-System.Text.RegularExpressions code-analyzer Marks an issue that suggests a Roslyn analyzer code-fixer Marks an issue that suggests a Roslyn code fixer help wanted [up-for-grabs] Good issue for external contributors
#111239 opened Jan 9, 2025 by stephentoub Future
1
BUG：Some bug in Balancing Group of Regular Expressions area-System.Text.RegularExpressions bug
#111161 opened Jan 7, 2025 by longxya Future
1
@Copilot
6
Result of Regex.Match("wtfb",@"(.)()+?b") is not same as new Regex(@"(.)()+?b",RegexOptions.Compiled).Match("wtfb") area-System.Text.RegularExpressions help wanted [up-for-grabs] Good issue for external contributors
#111051 opened Jan 3, 2025 by longxya 10.0.0
@ovidiucosteanet
8
"Convert to GeneratedRegexAttribute" mangles Constants area-System.Text.RegularExpressions bug
#109784 opened Nov 13, 2024 by TonyValenti Future
2
Regex does not match, given a character-range from non-peripheral minus area-System.Text.RegularExpressions bug
#108335 opened Sep 27, 2024 by ItaiTzur76 Future
6
System.Text.RegularExpressions.Generator doesn't support multi-targeted projects, even if GeneratedRegexAttribute is shimmed area-System.Text.RegularExpressions
#104212 opened Jun 30, 2024 by madelson Future
11
Update [GeneratedRegex] analyzer/fixer for partial properties area-System.Text.RegularExpressions
#103438 opened Jun 13, 2024 by stephentoub Future
1
investigate outliers in Rebar regex benchmarks area-System.Text.RegularExpressions help wanted [up-for-grabs] Good issue for external contributors
#96413 opened Jan 2, 2024 by danmoseley Future
2
Escaped pattern in the summary of GeneratedRegex area-System.Text.RegularExpressions
#94760 opened Nov 15, 2023 by pawchen Future
1
7
Show only a single suggestion adornment for a multi-line string area-System.Text.RegularExpressions code-analyzer Marks an issue that suggests a Roslyn analyzer help wanted [up-for-grabs] Good issue for external contributors
#93787 opened Sep 18, 2023 by tmat Future
7
Sporadic failures in RegexMatchTests test cases on s390x arch-s390x Related to s390x architecture (unsupported) area-System.Text.RegularExpressions test-bug Problem in test source code (most likely)
#88418 opened Jul 5, 2023 by uweigand Future
7
NonBacktracking engine is pathologically slow on patterns like "((((((((a)*)*)*)*)*)*)*" and input like "aaaaaaa" which other engines handle fine area-System.Text.RegularExpressions disabled-test The test is disabled in source code against the issue
#84188 opened Mar 31, 2023 by stephentoub Future
@olsaarik
7
Regex should advance bumpalong position for partially-matched starting loop minimums area-System.Text.RegularExpressions help wanted [up-for-grabs] Good issue for external contributors
#84149 opened Mar 30, 2023 by stephentoub Future
1
1
Javascript RegEx could not be used in C# cause of not supported "--" in area-System.Text.RegularExpressions feature-request
#79982 opened Dec 26, 2022 by jogibear9988 Future
20
GeneratedRegex fixer forces pattern onto a single line area-System.Text.RegularExpressions enhancement Product code improvement that does NOT require public API changes/additions needs-further-triage Issue has been initially triaged, but needs deeper consideration or reconsideration source-generator Indicates an issue with a source generator feature
#79891 opened Dec 21, 2022 by danmoseley Future
4
Fix and enable the PatternsDataSet_GenerateInputsWithNonBacktracking_MatchWithAllEngines test area-System.Text.RegularExpressions disabled-test The test is disabled in source code against the issue
#79373 opened Dec 8, 2022 by stephentoub Future
1
ProTip! Updated in the last three days: updated:>2025-05-17.