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[python] PY-61777 support python 3.11 regex features

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(cherry picked from commit 91f2efe47546d0189840d3f3d21da39483de440f)

GitOrigin-RevId: 35c7b142f27130205916522c1bd8c66577be9395
This commit is contained in:
Morgan Bartholomew
2025-11-08 09:40:03 +00:00
committed by intellij-monorepo-bot
parent cd53474e62
commit b28a735dfc
4 changed files with 59 additions and 4 deletions
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python/testSrc/com/jetbrains/python/PyRegexpTest.java
+43
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@@ -1,6 +1,7 @@
// Copyright 2000-2022 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
package com.jetbrains.python;
import com.intellij.idea.TestFor;
import com.intellij.lang.injection.InjectedLanguageManager;
import com.intellij.lexer.Lexer;
import com.intellij.openapi.util.Pair;
@@ -13,6 +14,7 @@ import com.jetbrains.python.codeInsight.regexp.PythonVerboseRegexpLanguage;
import com.jetbrains.python.codeInsight.regexp.PythonVerboseRegexpParserDefinition;
import com.jetbrains.python.fixtures.PyLexerTestCase;
import com.jetbrains.python.fixtures.PyTestCase;
import com.jetbrains.python.psi.LanguageLevel;
import org.intellij.lang.regexp.inspection.RegExpRedundantEscapeInspection;
import org.intellij.lang.regexp.inspection.RegExpSimplifiableInspection;
import org.jetbrains.annotations.NotNull;
@@ -251,6 +253,42 @@ public class PyRegexpTest extends PyTestCase {
"\\w+");
}
@TestFor(issues="PY-61777")
public void testPossessiveQuantifierSupportedPy3() {
runWithLanguageLevel(LanguageLevel.PYTHON311, () ->
testHighlighting("""
import re
re.compile("a++ b*+ c?+")""")
);
}
@TestFor(issues="PY-61777")
public void testPossessiveQuantifierUnsupportedPy3() {
runWithLanguageLevel(LanguageLevel.PYTHON310, () ->
testHighlighting("""
import re
re.compile("a+<error descr="Nested quantifier in regexp">+</error> b*<error descr="Nested quantifier in regexp">+</error> c?<error descr="Nested quantifier in regexp">+</error>")""")
);
}
@TestFor(issues="PY-61777")
public void testAtomicGroupSupportedPy3() {
runWithLanguageLevel(LanguageLevel.PYTHON311, () ->
testHighlighting("""
import re
re.compile("(?>a+)")""")
);
}
@TestFor(issues="PY-61777")
public void testAtomicGroupUnsupportedPy3() {
runWithLanguageLevel(LanguageLevel.PYTHON310, () ->
testHighlighting("""
import re
re.compile("<error descr="Atomic groups are not supported in this regex dialect">(?>a+)</error>")""")
);
}
@Nullable
@Override
protected LightProjectDescriptor getProjectDescriptor() {
@@ -275,6 +313,11 @@ public class PyRegexpTest extends PyTestCase {
myFixture.testHighlighting(true, false, true, "regexp/" + getTestName(true) + ".py");
}
private void testHighlighting(String text) {
myFixture.configureByText("test.py", text);
myFixture.testHighlighting(true, false, true, "test.py");
}
private void doTestLexer(final String text, String... expectedTokens) {
Lexer lexer = new PythonRegexpParserDefinition().createLexer(myFixture.getProject());
PyLexerTestCase.doLexerTest(text, lexer, expectedTokens);