feat(editor): implement brace handling (#69)

Signed-off-by: Luke Gareth Ribchester <luke@luke.gr>

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Enhanced parenthesis, brace, and bracket handling
+
 ## [0.3.1] - 2024-05-04
 
 ### Added

gradle.properties

@@ -4,7 +4,7 @@ pluginGroup = io.kadena.pact
 pluginName = Pact
 pluginRepositoryUrl = https://github.com/lukeribchester/pact-intellij
 # SemVer format -> https://semver.org
-pluginVersion = 0.3.1
+pluginVersion = 0.3.2
 
 # Supported build number ranges and IntelliJ Platform versions -> https://plugins.jetbrains.com/docs/intellij/build-number-ranges.html
 pluginSinceBuild = 232

src/main/kotlin/io/kadena/pact/ide/editor/PactBraceMatcher.kt

@@ -0,0 +1,31 @@
+package io.kadena.pact.ide.editor
+
+import com.intellij.lang.BracePair
+import com.intellij.lang.PairedBraceMatcher
+import com.intellij.psi.PsiFile
+import com.intellij.psi.tree.IElementType
+import io.kadena.pact.language.psi.PactTokenSets
+import io.kadena.pact.language.psi.PactTypes
+import org.jetbrains.annotations.NotNull
+
+
+private val BRACE_PAIRS = arrayOf(
+    BracePair(PactTypes.PAREN_OPEN, PactTypes.PAREN_CLOSE, true),
+    BracePair(PactTypes.BRACE_OPEN, PactTypes.BRACE_CLOSE, false),
+    BracePair(PactTypes.BRACKET_OPEN, PactTypes.BRACKET_CLOSE, false)
+)
+
+class PactBraceMatcher : PairedBraceMatcher {
+    @NotNull
+    override fun getPairs(): Array<BracePair> {
+        return BRACE_PAIRS
+    }
+
+    override fun isPairedBracesAllowedBeforeType(lbraceType: IElementType, contextType: IElementType?): Boolean {
+        return contextType == null || !PactTokenSets.STRINGS.contains(contextType)
+    }
+
+    override fun getCodeConstructStart(file: PsiFile?, openingBraceOffset: Int): Int {
+        return openingBraceOffset
+    }
+}

src/main/resources/META-INF/plugin.xml

@@ -44,6 +44,11 @@
         <platform.lsp.serverSupportProvider
                 implementation="io.kadena.pact.lsp.PactLspServerSupportProvider"/>
 
+        <!-- Brace Matcher -->
+        <lang.braceMatcher
+                language="Pact"
+                implementationClass="io.kadena.pact.ide.editor.PactBraceMatcher"/>
+
         <!-- Quote Handler -->
         <lang.quoteHandler
                 language="Pact"