Addresses issue #8

prism4j/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'java-library'
+apply plugin: 'maven-publish'
 
 version = VERSION_NAME
 
@@ -20,3 +21,15 @@ if (project.hasProperty('release')) {
     }
     apply from: 'https://raw.githubusercontent.com/noties/gradle-mvn-push/master/gradle-mvn-push-jar.gradle'
 }
+
+publishing {
+    publications {
+        maven(MavenPublication) {
+            def libraryFile = file("build/libs/prism4j-${version}.jar")
+            groupId "io.noties"
+            artifactId 'prism4j'
+            version version
+            artifact libraryFile
+        }
+    }
+}

prism4j/src/main/java/io/noties/prism4j/Prism4j.java

@@ -182,7 +182,9 @@ public Prism4j(@NotNull GrammarLocator grammarLocator) {
     public List<Node> tokenize(@NotNull String text, @NotNull Grammar grammar) {
         final List<Node> entries = new ArrayList<>(3);
         entries.add(new TextImpl(text));
-        matchGrammar(text, entries, grammar, 0, 0, false, null);
+        if (text.length() > 0) {
+            matchGrammar(text, entries, grammar, 0, 0, false, null);
+        }
         return entries;
     }