diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000000000000000000000000000000000000..a45db48e146596da3c7d69b124388500998ed5f3
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,7 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+charset = utf-8
+insert_final_newline = true
diff --git a/build.gradle b/build.gradle
index 29700f835f166fa2b80a30a9be1c2cf4e788589a..e87fd7ab359a4290317d89a484bf58e0c8d58b1b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,3 +1,4 @@
+apply plugin: 'application'
 apply plugin: 'java'
 apply plugin: 'eclipse'
 apply plugin: 'maven'
@@ -7,51 +8,56 @@ project.version = '3.2.14-SNAPSHOT'
 project.group = 'de.hhu.stups'
 project.archivesBaseName = "sablecc"
 
-allprojects {
-    sourceCompatibility = 1.5
-    targetCompatibility = 1.5
+wrapper {
+  gradleVersion = "5.2.1"
+  distributionType = Wrapper.DistributionType.ALL
 }
 
-dependencies {
- testCompile 'junit:junit:4.8.2'
+sourceCompatibility = 1.6
+targetCompatibility = 1.6
+
+repositories {
+  mavenLocal()
+  jcenter()
 }
 
+mainClassName = "org.sablecc.sablecc.SableCC"
 
 task javadocJar(type: Jar) {
-    classifier = 'javadoc'
-    from javadoc
+  archiveClassifier.set("javadoc")
+  from javadoc
 }
 
 task sourcesJar(type: Jar) {
-    classifier = 'sources'
-    from sourceSets.main.allSource
+  archiveClassifier.set("sources")
+  from sourceSets.main.allSource
 }
 
 jar {
-	manifest {
-		attributes 'Main-Class': 'org.sablecc.sablecc.SableCC'
-	}
+  manifest {
+    attributes 'Main-Class': mainClassName
+  }
 }
 
 artifacts {
-    archives javadocJar, sourcesJar
+  archives javadocJar, sourcesJar
 }
 
 task writeVersion() {
 
   doFirst {
-  def buildconstants_class = """
-  package org.sablecc.sablecc;
+    def buildconstants_class = """
+package org.sablecc.sablecc;
 
-  public class Version
-  {
-    public static final String VERSION = "${project.version}";
+public class Version
+{
+  public static final String VERSION = "${project.version}";
+}
+"""
+    File f = file("src/main/java/org/sablecc/sablecc/Version.java")
+    f.delete()
+    f <<  buildconstants_class
   }
-  """
-  File f = file("src/main/java/org/sablecc/sablecc/Version.java")
-  f.delete()
-  f <<  buildconstants_class
- }
 }
 
 compileJava {
@@ -62,54 +68,54 @@ task deploy(dependsOn: [jar,test,javadoc], group: 'Build')
 
 if (project.hasProperty('ossrhUsername') && project.hasProperty('ossrhPassword')) {
 
-apply plugin: 'signing'
+  apply plugin: 'signing'
 
-signing {
+  signing {
     sign configurations.archives
-}
-uploadArchives {
-  repositories {
-    mavenDeployer {
-      beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
-
-      repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
-        authentication(userName: ossrhUsername, password: ossrhPassword)
-      }
+  }
+  uploadArchives {
+    repositories {
+      mavenDeployer {
+        beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }
 
-      snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
-        authentication(userName: ossrhUsername, password: ossrhPassword)
-      }
+        repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
+          authentication(userName: ossrhUsername, password: ossrhPassword)
+        }
 
-      pom.project {
-        name 'SableCC - Stups fork'
-        packaging 'jar'
-        // optionally artifactId can be defined here
-        description 'This version of SableCC enriches the abstract syntax tree with information about tokens.'
-        url 'https://github.com/bendisposto/sablecc-stups'
-
-        licenses {
-          license {
-            name 'GNU Lesser General Public License, Version 2.1'
-            url 'http://www.gnu.org/licenses/lgpl-2.1.html'
-          }
+        snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
+          authentication(userName: ossrhUsername, password: ossrhPassword)
         }
 
-        scm {
-          connection 'scm:git:git://github.com/bendisposto/sablecc-stups.git'
-          developerConnection 'scm:git:git@github.com:bendisposto/sablecc-stups.git'
+        pom.project {
+          name 'SableCC - Stups fork'
+          packaging 'jar'
+          // optionally artifactId can be defined here
+          description 'This version of SableCC enriches the abstract syntax tree with information about tokens.'
           url 'https://github.com/bendisposto/sablecc-stups'
-        }
+
+          licenses {
+            license {
+              name 'GNU Lesser General Public License, Version 2.1'
+              url 'http://www.gnu.org/licenses/lgpl-2.1.html'
+            }
+          }
+
+          scm {
+            connection 'scm:git:git://github.com/bendisposto/sablecc-stups.git'
+            developerConnection 'scm:git:git@github.com:bendisposto/sablecc-stups.git'
+            url 'https://github.com/bendisposto/sablecc-stups'
+          }
 
 
-        developers {
-          developer {
-            id 'bendisposto'
-            name 'Jens Bendisposto'
-            email 'jens@bendisposto.de'
+          developers {
+            developer {
+              id 'bendisposto'
+              name 'Jens Bendisposto'
+              email 'jens@bendisposto.de'
+            }
           }
         }
       }
     }
   }
 }
-}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 45bfb5c85ea4b9b0d02616718f2637b2075acb1c..87b738cbd051603d91cc39de6cb000dd98fe6b02 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index de7270243d9b8f2f13b33c2c1240417228949aec..1b2b07cfb00c6806f2d9fa1f8706907314498d87 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,5 @@
-#Wed Jun 08 11:31:31 CEST 2011
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=http\://repo.gradle.org/gradle/distributions/gradle-1.0-milestone-3-bin.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000000000000000000000000000000000000..af6708ff229fda75da4f7cc4da4747217bac4d53
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000000000000000000000000000000000000..6d57edc706c93465988754383a2d7ff353d4e79f
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega