# String Variable Presentations

###### Identifier:

org.eclipse.debug.ui.stringVariablePresentations

###### Since:

2.1

###### Description:

This extension point provides a mechanism for contributing a user interface/presentation for a string substitution variable (i.e. a context variable or value variable).

###### Configuration Markup:

<!ELEMENT extension (variablePresentation*)>

<!ATTLIST extension

point CDATA #REQUIRED

id CDATA #IMPLIED

name CDATA #IMPLIED>

- point - a fully qualified identifier of the target extension point
- id - an optional identifier of the extension instance
- name - an optional name of the extension instance

<!ELEMENT variablePresentation EMPTY>

<!ATTLIST variablePresentation

variableName IDREF #REQUIRED

argumentSelector CDATA #REQUIRED>

- variableName - specifies the variable this presentation is for
- argumentSelector - specifies a fully qualified name of a Java class that implements `IArgumentSelector`

###### Examples:

The following is an example of a variable presentation contribution:

    <extension point="org.eclipse.debug.ui.stringVariablePresentations">
      <variablePresentation
         variableName="example_variable"
         argumentSelector="com.example.ExampleArgumentChooser">
      </variablePresentation>
    </extension>

In the above example, the contributed presentation will be used for the variable named "example_variable". An argument selector is specified to configure an argument applicable to the variable.

###### API Information:

Value of the attribute argumentSelector must be a fully qualified name of a Java class that implements the interface org.eclipse.debug.ui.stringsubstitution.IArgumentSelector.

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