diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..5b530e0
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <annotationProcessing>
+      <profile name="Maven default annotation processors profile" enabled="true">
+        <sourceOutputDir name="target/generated-sources/annotations" />
+        <sourceTestOutputDir name="target/generated-test-sources/test-annotations" />
+        <outputRelativeToContentRoot value="true" />
+        <module name="klang" />
+      </profile>
+    </annotationProcessing>
+    <bytecodeTargetLevel>
+      <module name="klang" target="11" />
+    </bytecodeTargetLevel>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..923da22
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/target/generated-sources/antlr4" charset="UTF-8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/jarRepositories.xml b/.idea/jarRepositories.xml
new file mode 100644
index 0000000..712ab9d
--- /dev/null
+++ b/.idea/jarRepositories.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Central Repository" />
+      <option name="url" value="https://repo.maven.apache.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_antlr_antlr4_runtime_4_7_2.xml b/.idea/libraries/Maven__org_antlr_antlr4_runtime_4_7_2.xml
new file mode 100644
index 0000000..d0c6a38
--- /dev/null
+++ b/.idea/libraries/Maven__org_antlr_antlr4_runtime_4_7_2.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.antlr:antlr4-runtime:4.7.2">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/antlr/antlr4-runtime/4.7.2/antlr4-runtime-4.7.2-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_apiguardian_apiguardian_api_1_1_0.xml b/.idea/libraries/Maven__org_apiguardian_apiguardian_api_1_1_0.xml
new file mode 100644
index 0000000..f854ab0
--- /dev/null
+++ b/.idea/libraries/Maven__org_apiguardian_apiguardian_api_1_1_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.apiguardian:apiguardian-api:1.1.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.0/apiguardian-api-1.1.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_api_5_6_0.xml b/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_api_5_6_0.xml
new file mode 100644
index 0000000..be380a5
--- /dev/null
+++ b/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_api_5_6_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.jupiter:junit-jupiter-api:5.6.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.6.0/junit-jupiter-api-5.6.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.6.0/junit-jupiter-api-5.6.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.6.0/junit-jupiter-api-5.6.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_engine_5_6_0.xml b/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_engine_5_6_0.xml
new file mode 100644
index 0000000..227bc44
--- /dev/null
+++ b/.idea/libraries/Maven__org_junit_jupiter_junit_jupiter_engine_5_6_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.jupiter:junit-jupiter-engine:5.6.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-engine/5.6.0/junit-jupiter-engine-5.6.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-engine/5.6.0/junit-jupiter-engine-5.6.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-engine/5.6.0/junit-jupiter-engine-5.6.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_junit_platform_junit_platform_commons_1_6_0.xml b/.idea/libraries/Maven__org_junit_platform_junit_platform_commons_1_6_0.xml
new file mode 100644
index 0000000..8e5d3f2
--- /dev/null
+++ b/.idea/libraries/Maven__org_junit_platform_junit_platform_commons_1_6_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.platform:junit-platform-commons:1.6.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.6.0/junit-platform-commons-1.6.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.6.0/junit-platform-commons-1.6.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.6.0/junit-platform-commons-1.6.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_junit_platform_junit_platform_engine_1_6_0.xml b/.idea/libraries/Maven__org_junit_platform_junit_platform_engine_1_6_0.xml
new file mode 100644
index 0000000..2f36d10
--- /dev/null
+++ b/.idea/libraries/Maven__org_junit_platform_junit_platform_engine_1_6_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.junit.platform:junit-platform-engine:1.6.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-engine/1.6.0/junit-platform-engine-1.6.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-engine/1.6.0/junit-platform-engine-1.6.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-engine/1.6.0/junit-platform-engine-1.6.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/libraries/Maven__org_opentest4j_opentest4j_1_2_0.xml b/.idea/libraries/Maven__org_opentest4j_opentest4j_1_2_0.xml
new file mode 100644
index 0000000..fbc1b16
--- /dev/null
+++ b/.idea/libraries/Maven__org_opentest4j_opentest4j_1_2_0.xml
@@ -0,0 +1,13 @@
+<component name="libraryTable">
+  <library name="Maven: org.opentest4j:opentest4j:1.2.0">
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar!/" />
+    </CLASSES>
+    <JAVADOC>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0-javadoc.jar!/" />
+    </JAVADOC>
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..1f08112
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ANTLRGenerationPreferences">
+    <option name="perGrammarGenerationSettings">
+      <list>
+        <PerGrammarGenerationSettings>
+          <option name="fileName" value="$PROJECT_DIR$/src/main/antlr4/de/hsrm/compiler/Klang/Klang.g4" />
+          <option name="outputDir" value="" />
+          <option name="libDir" value="" />
+          <option name="encoding" value="" />
+          <option name="pkg" value="" />
+          <option name="language" value="" />
+          <option name="generateVisitor" value="true" />
+        </PerGrammarGenerationSettings>
+      </list>
+    </option>
+  </component>
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="corretto-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/classes" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..eb129d2
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/klang.iml" filepath="$PROJECT_DIR$/klang.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/klang.iml b/klang.iml
new file mode 100644
index 0000000..d75274d
--- /dev/null
+++ b/klang.iml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_11">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/target/generated-sources/antlr4" isTestSource="false" generated="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Maven: org.antlr:antlr4-runtime:4.7.2" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.jupiter:junit-jupiter-api:5.6.0" level="project" />
+    <orderEntry type="library" name="Maven: org.apiguardian:apiguardian-api:1.1.0" level="project" />
+    <orderEntry type="library" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.platform:junit-platform-commons:1.6.0" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.jupiter:junit-jupiter-engine:5.6.0" level="project" />
+    <orderEntry type="library" name="Maven: org.junit.platform:junit-platform-engine:1.6.0" level="project" />
+  </component>
+</module>
\ No newline at end of file