PatternSyntaxException: Illegal repetition in TextMateLineIndentProvider on Backspace

[xiaol-now]

Exceptions

java.util.regex.PatternSyntaxException: Illegal repetition near index 78
^.*(\bcase\b.*:|\bdefault\b:|(\b(func|if|else|switch|select|for|struct)\b.*)?{[^}"'`]*|\([^)"'`]*)$
                                                                              ^
	at java.base/java.util.regex.Pattern.error(Pattern.java:2205)
	at java.base/java.util.regex.Pattern.closure(Pattern.java:3488)
	at java.base/java.util.regex.Pattern.sequence(Pattern.java:2391)
	at java.base/java.util.regex.Pattern.expr(Pattern.java:2246)
	at java.base/java.util.regex.Pattern.group0(Pattern.java:3230)
	at java.base/java.util.regex.Pattern.sequence(Pattern.java:2301)
	at java.base/java.util.regex.Pattern.expr(Pattern.java:2246)
	at java.base/java.util.regex.Pattern.compile(Pattern.java:1946)
	at java.base/java.util.regex.Pattern.<init>(Pattern.java:1577)
	at java.base/java.util.regex.Pattern.compile(Pattern.java:1102)
	at kotlin.text.Regex.<init>(Regex.kt:90)
	at org.jetbrains.plugins.textmate.editor.TextMateLineIndentProvider.getIndentChange(TextMateLineIndentProvider.kt:87)
	at org.jetbrains.plugins.textmate.editor.TextMateLineIndentProvider.getLineIndent(TextMateLineIndentProvider.kt:49)
	at com.intellij.application.options.CodeStyle.getLineIndent(CodeStyle.java:505)
	at com.intellij.codeInsight.editorActions.SmartIndentingBackspaceHandler.doBeforeCharDeleted(SmartIndentingBackspaceHandler.java:43)
	at com.intellij.codeInsight.editorActions.AbstractIndentingBackspaceHandler.beforeCharDeleted(AbstractIndentingBackspaceHandler.java:32)
	at com.intellij.codeInsight.editorActions.BackspaceHandler.handleBackspace(BackspaceHandler.java:86)
	at com.intellij.codeInsight.editorActions.BackspaceHandler.executeWriteAction(BackspaceHandler.java:52)
	at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler.lambda$doExecute$0(EditorWriteActionHandler.java:44)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteActionBlocking(NestedLocksThreadingSupport.kt:997)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1161)
	at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler.doExecute(EditorWriteActionHandler.java:57)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$2(EditorActionHandler.java:208)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:95)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$3(EditorActionHandler.java:207)
	at com.intellij.openapi.editor.impl.CaretModelImpl.lambda$runForEachCaret$3(CaretModelImpl.java:317)
	at com.intellij.openapi.editor.impl.CaretModelImpl.doWithCaretMerging(CaretModelImpl.java:429)
	at com.intellij.openapi.editor.impl.CaretModelImpl.runForEachCaret(CaretModelImpl.java:327)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:205)
	at com.intellij.openapi.editor.actions.DeleteSelectionHandler.executeWriteAction(DeleteSelectionHandler.java:35)
	at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler.lambda$doExecute$0(EditorWriteActionHandler.java:44)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteActionBlocking(NestedLocksThreadingSupport.kt:997)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1161)
	at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler.doExecute(EditorWriteActionHandler.java:57)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:215)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:95)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:214)
	at com.intellij.internal.statistic.collectors.fus.SelectionDeleteLoggingHandlerBase.doExecute(SelectionDeleteLoggingHandlerBase.java:38)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:215)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:95)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:214)
	at com.intellij.codeInsight.lookup.impl.BackspaceHandler.doExecute(BackspaceHandler.java:30)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:215)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:95)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:214)
	at com.intellij.codeInsight.inline.completion.BackspaceDeleteInlineCompletionHandler.invokeOriginalHandler(InlineCompletionActions.kt:95)
	at com.intellij.codeInsight.inline.completion.BackspaceDeleteInlineCompletionHandler.doExecute(InlineCompletionActions.kt:106)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:215)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:95)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:214)
	at com.intellij.execution.impl.ConsoleViewImpl$ConsoleActionHandler.doExecute(ConsoleViewImpl.kt:1188)
	at com.intellij.openapi.editor.actionSystem.DynamicEditorActionHandler.doExecute(DynamicEditorActionHandler.java:68)
	at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java

[xiaol-now]

Rebased 1.1.3
Build #IC-261.25134.SNAPSHOT, built on June 7, 2026 at 19:53
Source revision: 7319014
Runtime version: 25.0.3+9-b329.124 aarch64null
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Toolkit: sun.lwawt.macosx.LWCToolkit
macOS 26.5.1
Exception reporter ID: 23042627c51c44b-3709-4f04-9e85-790986b7b6a7
GC: G1 Young Generation, G1 Concurrent GC, G1 Old Generation
Memory: 2048M
Cores: 15
Metal Rendering is ON
Registry:
vcs.log.index.enable=true
ide.experimental.ui=true
Non-Bundled Plugins:
hg4idea (261.23567.28)
Subversion (261.25134.147)
PerforceDirectPlugin (261.25134.10)

[DetachHead]

https://youtrack.jetbrains.com/issue/IJPL-198570/Using-regex-indentationRules.increaseIndentPattern-failed-PatternSyntaxException-from-TextMateLineIndentProvider.getIndentChange