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element_patterns.md: cleanup

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Yann Cébron 2023-01-10 16:42:56 +01:00
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topics/basics/architectural_overview/element_patterns.md
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@ -1,6 +1,6 @@
[//]: # (title: Element Patterns) # Element Patterns
<!-- Copyright 2000-2022 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. --> <!-- Copyright 2000-2023 JetBrains s.r.o. and other contributors. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file. -->
<link-summary rel="excerpt"/> <link-summary rel="excerpt"/>
<p id="excerpt"> <p id="excerpt">
@ -16,15 +16,15 @@ Their two main applications inside the IntelliJ Platform are:
However, plugin authors rarely implement the [`ElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/ElementPattern.java) interface directly. However, plugin authors rarely implement the [`ElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/ElementPattern.java) interface directly.
Instead, we recommend using the high-level pattern classes provided by the IntelliJ Platform: Instead, we recommend using the high-level pattern classes provided by the IntelliJ Platform:
| Class | Main Contents | Notable Examples | | Class | Main Contents | Notable Examples |
|---------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |-----------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [`StandardPatterns`](%gh-ic%/platform/core-api/src/com/intellij/patterns/StandardPatterns.java) | Factory for string and char pattern (see below); Logical operations like and, or, not | [`LogbackReferenceContributor`](%gh-ic%/plugins/groovy/src/org/jetbrains/plugins/groovy/ext/logback/LogbackReferenceContributor.kt), [`RegExpCompletionContributor`](%gh-ic%/RegExpSupport/src/org/intellij/lang/regexp/RegExpCompletionContributor.java) | | [`StandardPatterns`](%gh-ic%/platform/core-api/src/com/intellij/patterns/StandardPatterns.java) | Factory for string and char pattern (see below); Logical operations like and, or, not | [`LogbackReferenceContributor`](%gh-ic%/plugins/groovy/src/org/jetbrains/plugins/groovy/ext/logback/LogbackReferenceContributor.kt), [`RegExpCompletionContributor`](%gh-ic%/RegExpSupport/src/org/intellij/lang/regexp/RegExpCompletionContributor.java) |
| [`PlatformPatterns`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PlatformPatterns.java) | Factory for PSI-, IElement-, and VirtualFile-patterns | [`FxmlReferencesContributor`](%gh-ic%/plugins/javaFX/src/org/jetbrains/plugins/javaFX/fxml/refs/FxmlReferencesContributor.java), [`PyDataclassCompletionContributor`](%gh-ic%/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyDataclassCompletionContributor.kt) | | [`PlatformPatterns`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PlatformPatterns.java) | Factory for PSI-, IElement-, and VirtualFile-patterns | [`FxmlReferencesContributor`](%gh-ic%/plugins/javaFX/src/org/jetbrains/plugins/javaFX/fxml/refs/FxmlReferencesContributor.java), [`PyDataclassCompletionContributor`](%gh-ic%/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyDataclassCompletionContributor.kt) |
| [`PsiElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PsiElementPattern.java) | Patterns for PSI; Checks for children, parents, or neighboring leaves | [`XmlCompletionContributor`](%gh-ic%/xml/impl/src/com/intellij/codeInsight/completion/XmlCompletionContributor.java) | | [`PsiElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PsiElementPattern.java) | Patterns for PSI; Checks for children, parents, or neighboring leaves | [`XmlCompletionContributor`](%gh-ic%/xml/impl/src/com/intellij/codeInsight/completion/XmlCompletionContributor.java) |
| [`CollectionPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/CollectionPattern.java) | Filter and check pattern collections; Mainly used to provide functionality for other high-level pattern classes | [`PsiElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PsiElementPattern.java) | | [`CollectionPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/CollectionPattern.java) | Filter and check pattern collections; Mainly used to provide functionality for other high-level pattern classes | [`PsiElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/PsiElementPattern.java) |
| [`TreeElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/TreeElementPattern.java) | Patterns specifically for checking (PSI) tree structure | [`PyMetaClassCompletionContributor`](%gh-ic%/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyMetaClassCompletionContributor.java) | | [`TreeElementPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/TreeElementPattern.java) | Patterns specifically for checking (PSI) tree structure | [`PyMetaClassCompletionContributor`](%gh-ic%/python/python-psi-impl/src/com/jetbrains/python/codeInsight/completion/PyMetaClassCompletionContributor.java) |
| [`StringPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/StringPattern.java) | Check if strings match, have a certain length, have a specific beginning or ending, or are one of a collection of strings | [`AbstractGradleCompletionContributor`](%gh-ic%/plugins/gradle/java/src/codeInsight/AbstractGradleCompletionContributor.kt) | | [`StringPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/StringPattern.java) | Check if strings match, have a certain length, have a specific beginning or ending, or are one of a collection of strings | [`AbstractGradleCompletionContributor`](%gh-ic%/plugins/gradle/java/src/codeInsight/AbstractGradleCompletionContributor.kt) |
| [`CharPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/CharPattern.java) | Check if characters are whitespace, digits, or Java identifier parts | [`CompletionUtil`](%gh-ic%/platform/analysis-impl/src/com/intellij/codeInsight/completion/CompletionUtil.java) | | [`CharPattern`](%gh-ic%/platform/core-api/src/com/intellij/patterns/CharPattern.java) | Check if characters are whitespace, digits, or Java identifier parts | [`CompletionUtil`](%gh-ic%/platform/analysis-impl/src/com/intellij/codeInsight/completion/CompletionUtil.java) |
Some built-in languages in the IntelliJ Platform implement their own pattern classes and can provide additional examples: Some built-in languages in the IntelliJ Platform implement their own pattern classes and can provide additional examples:
@ -54,7 +54,7 @@ As shown in the code above, element patterns can be stacked and combined to crea
PsiElementPattern.Capture<PsiElement> AFTER_COMMA_OR_BRACKET_IN_ARRAY = PsiElementPattern.Capture<PsiElement> AFTER_COMMA_OR_BRACKET_IN_ARRAY =
psiElement(). psiElement().
afterLeaf("[", ","). afterLeaf("[", ",").
withSuperParent(2,JsonArray.class). withSuperParent(2, JsonArray.class).
andNot( andNot(
psiElement(). psiElement().
withParent(JsonStringLiteral.class) withParent(JsonStringLiteral.class)