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17. Commenter

A commenter enables the user to comment-out a line of code at the cursor or selected code automatically. The Commenter defines support for Code | Comment with Line Comment and Code | Comment with Block Comment actions.

  • bullet list {:toc}

17.1. Define a Commenter

The commenter for Simple Language defines the line comment prefix as #.

{% include /code_samples/simple_language_plugin/src/main/java/org/intellij/sdk/language/SimpleCommenter.java %}

17.2. Register the Commenter

The SimpleCommenter implementation is registered in the plugin configuration file using the com.intellij.lang.commenter extension point.

  <extensions defaultExtensionNs="com.intellij">
    <lang.commenter language="Simple" implementationClass="org.intellij.sdk.language.SimpleCommenter"/>
  </extensions>

17.3. Run the Project

Open the example Simple Language properties file in the IDE Development Instance. Place the cursor at the website line. Select Code | Comment with Line Comment. The line is converted to a comment. Select Code | Comment with Line Comment again, and the comment is converted back to active code.

Commenter