Add support for basic spell checker

Author: waleedyaseen

CHANGELOG.md

@@ -1,6 +1,8 @@
 # intellij-runescript Changelog
 
 ## [Unreleased]
+### Added
+- Support for basic spell checking and custom dictionary.
 
 ## [1.1.0] - 2023-08-11
 

src/main/kotlin/io/runescript/plugin/ide/spellchecker/RsBundledDictionaryProvider.kt

@@ -0,0 +1,7 @@
+package io.runescript.plugin.ide.spellchecker
+
+import com.intellij.spellchecker.BundledDictionaryProvider
+
+class RsBundledDictionaryProvider : BundledDictionaryProvider {
+    override fun getBundledDictionaries() = arrayOf("runescript.dic")
+}

src/main/kotlin/io/runescript/plugin/ide/spellchecker/RsSpellcheckingStrategy.kt

@@ -0,0 +1,10 @@
+package io.runescript.plugin.ide.spellchecker
+
+import com.intellij.psi.PsiElement
+import com.intellij.spellchecker.tokenizer.SpellcheckingStrategy
+import io.runescript.plugin.lang.RuneScript
+
+class RsSpellcheckingStrategy : SpellcheckingStrategy() {
+
+    override fun isMyContext(element: PsiElement) = RuneScript.`is`(element.language)
+}

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

@@ -64,6 +64,10 @@
         <codeInsight.parameterInfo language="RuneScript" implementationClass="io.runescript.plugin.ide.codeInsight.RsGosubParameterInfoProvider"/>
         <documentationProvider implementation="io.runescript.plugin.ide.doc.RsDocumentationProvider"/>
 
+        <!-- Spell Checking -->
+        <spellchecker.support language="RuneScript" implementationClass="io.runescript.plugin.ide.spellchecker.RsSpellcheckingStrategy"/>
+        <spellchecker.bundledDictionaryProvider implementation="io.runescript.plugin.ide.spellchecker.RsBundledDictionaryProvider"/>
+
         <intentionAction>
             <language>RuneScript</language>
             <className>io.runescript.plugin.ide.codeInsight.intention.RsNumberConversionIntention</className>

src/main/resources/runescript.dic

@@ -0,0 +1,3 @@
+runescript
+clientscript
+proc