Add commenter

src/main/java/io/protostuff/jetbrains/plugin/ProtoCommenter.java

@@ -0,0 +1,33 @@
+package io.protostuff.jetbrains.plugin;
+
+import com.intellij.lang.Commenter;
+
+/**
+ * @author Kostiantyn Shchepanovskyi
+ */
+public class ProtoCommenter implements Commenter {
+
+    public static final String LINE_COMMENT_PREFIX = "//";
+    public static final String BLOCK_COMMENT_PREFIX = "/*";
+    public static final String BLOCK_COMMENT_SUFFIX = "*/";
+
+    public String getLineCommentPrefix() {
+        return LINE_COMMENT_PREFIX;
+    }
+
+    public String getBlockCommentPrefix() {
+        return BLOCK_COMMENT_PREFIX;
+    }
+
+    public String getBlockCommentSuffix() {
+        return BLOCK_COMMENT_SUFFIX;
+    }
+
+    public String getCommentedBlockCommentPrefix() {
+        return null;
+    }
+
+    public String getCommentedBlockCommentSuffix() {
+        return null;
+    }
+}

src/main/resources/META-INF/plugin.xml

@@ -77,6 +77,7 @@
 
         <colorSettingsPage implementation="io.protostuff.jetbrains.plugin.ProtoColorSettingsPage"/>
 
+        <lang.commenter language="PROTO" implementationClass="io.protostuff.jetbrains.plugin.ProtoCommenter"/>
     </extensions>
 
     <actions>