diff --git a/source/net/filebot/format/ExpressionFormatFunctions.java b/source/net/filebot/format/ExpressionFormatFunctions.java
index 85eb192f..e99fba84 100644
--- a/source/net/filebot/format/ExpressionFormatFunctions.java
+++ b/source/net/filebot/format/ExpressionFormatFunctions.java
@@ -1,13 +1,16 @@
 package net.filebot.format;
 
+import static java.util.stream.Collectors.*;
+
 import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Paths;
-import java.util.ArrayList;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
+import java.util.stream.Stream;
 
 import groovy.lang.Closure;
 
@@ -19,73 +22,31 @@ public class ExpressionFormatFunctions {
 	/**
 	 * General helpers and utilities
 	 */
-	public static Object c(Closure<?> c) {
-		try {
-			return c.call();
-		} catch (Exception e) {
-			return null;
+	public static Object call(Object object) {
+		if (object instanceof Closure<?>) {
+			try {
+				return ((Closure<?>) object).call();
+			} catch (Exception e) {
+				return null;
+			}
 		}
+		return object;
 	}
 
-	public static Object any(Object a0, Object a1, Object... args) {
-		for (Object it : new Object[] { a0, a1 }) {
-			try {
-				Object result = callIfCallable(it);
-				if (result != null) {
-					return result;
-				}
-			} catch (Exception e) {
-				// ignore
-			}
-		}
-
-		for (Object it : args) {
-			try {
-				Object result = callIfCallable(it);
-				if (result != null) {
-					return result;
-				}
-			} catch (Exception e) {
-				// ignore
-			}
-		}
-
-		return null;
+	public static Object any(Object c1, Object c2, Object... cN) {
+		return stream(c1, c2, cN).findFirst().get();
 	}
 
-	public static List<Object> allOf(Object a0, Object a1, Object... args) {
-		List<Object> values = new ArrayList<Object>();
-
-		for (Object it : new Object[] { a0, a1 }) {
-			try {
-				Object result = callIfCallable(it);
-				if (result != null) {
-					values.add(result);
-				}
-			} catch (Exception e) {
-				// ignore
-			}
-		}
-
-		for (Object it : args) {
-			try {
-				Object result = callIfCallable(it);
-				if (result != null) {
-					values.add(result);
-				}
-			} catch (Exception e) {
-				// ignore
-			}
-		}
-
-		return values;
+	public static List<Object> allOf(Object c1, Object c2, Object... cN) {
+		return stream(c1, c2, cN).collect(toList());
 	}
 
-	private static Object callIfCallable(Object obj) throws Exception {
-		if (obj instanceof Closure<?>) {
-			return ((Closure<?>) obj).call();
-		}
-		return obj;
+	public static String concat(Object c1, Object c2, Object... cN) {
+		return stream(c1, c2, cN).map(Objects::toString).collect(joining());
+	}
+
+	protected static Stream<Object> stream(Object c1, Object c2, Object... cN) {
+		return Stream.concat(Stream.of(c1, c2), Stream.of(cN)).map(ExpressionFormatFunctions::call).filter(Objects::nonNull);
 	}
 
 	public static Map<String, String> csv(String path) throws IOException {
diff --git a/source/net/filebot/format/ExpressionFormatMethods.java b/source/net/filebot/format/ExpressionFormatMethods.java
index 776b7a3e..c724bf50 100644
--- a/source/net/filebot/format/ExpressionFormatMethods.java
+++ b/source/net/filebot/format/ExpressionFormatMethods.java
@@ -1,6 +1,7 @@
 package net.filebot.format;
 
 import static java.util.regex.Pattern.*;
+import static net.filebot.format.ExpressionFormatFunctions.*;
 
 import java.io.File;
 import java.io.IOException;
@@ -22,9 +23,11 @@ import org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation;
 import com.ibm.icu.text.Transliterator;
 
 import groovy.lang.Closure;
+import net.filebot.Language;
 import net.filebot.similarity.Normalization;
 import net.filebot.util.FileUtilities;
 import net.filebot.util.StringUtilities;
+import net.filebot.web.SimpleDate;
 
 public class ExpressionFormatMethods {
 
@@ -422,12 +425,20 @@ public class ExpressionFormatMethods {
 		return Locale.forLanguageTag(self);
 	}
 
-	public static String plus(String self, Closure<?> closure) {
-		try {
-			return self + closure.call();
-		} catch (Exception e) {
-			return self;
-		}
+	public static String plus(String self, Closure<?> other) {
+		return concat(self, other);
+	}
+
+	public static String plus(Closure<?> self, Object other) {
+		return concat(self, other);
+	}
+
+	public static String plus(Language self, Object other) {
+		return concat(self, other);
+	}
+
+	public static String plus(SimpleDate self, Object other) {
+		return concat(self, other);
 	}
 
 }
diff --git a/website/naming.html b/website/naming.html
index cdb86dac..1226e5b8 100644
--- a/website/naming.html
+++ b/website/naming.html
@@ -190,7 +190,7 @@
 						</tr>
 						<tr>
 							<td>plex</td>
-							<td><a href="https://support.plex.tv/hc/en-us/sections/200059498-Naming-and-Organizing-TV-Shows" target="_blank">Plex Naming Standard</a></td>
+							<td><a href="https://support.plex.tv/hc/en-us/categories/200028098-Media-Preparation" target="_blank">Plex Naming Standard</a></td>
 							<td>&lt;path&gt;</td>
 						</tr>
 						<tr>