5: Create JavaSyntaxRegexProvider

src/main/java/com/bartek/esa/core/di/CoreModule.java

@@ -1,6 +1,7 @@
 package com.bartek.esa.core.di;
 
 import com.bartek.esa.core.executor.PluginExecutor;
+import com.bartek.esa.core.java.JavaSyntaxRegexProvider;
 import dagger.Module;
 import dagger.Provides;
 
@@ -11,4 +12,9 @@ public class CoreModule {
     public PluginExecutor pluginExecutor() {
         return new PluginExecutor();
     }
+
+    @Provides
+    public JavaSyntaxRegexProvider javaSyntaxRegexProvider() {
+        return new JavaSyntaxRegexProvider();
+    }
 }

src/main/java/com/bartek/esa/core/java/JavaSyntaxRegexProvider.java

@@ -0,0 +1,17 @@
+package com.bartek.esa.core.java;
+
+import javax.inject.Inject;
+
+import static java.lang.String.format;
+
+public class JavaSyntaxRegexProvider {
+
+    @Inject
+    public JavaSyntaxRegexProvider() {
+
+    }
+
+    public String methodInvocation(String methodName) {
+        return format("^%s\\s*\\($", methodName);
+    }
+}