See:
Description

Xpand

org.eclipse.xpand2	Implementation of the Xpand language
org.eclipse.xpand2.output	Generator output handling

Other Packages

org.eclipse.xpand.activities
org.eclipse.xpand.ui
org.eclipse.xpand.ui.core
org.eclipse.xpand.ui.debug
org.eclipse.xpand.ui.editor
org.eclipse.xpand.ui.editor.actions
org.eclipse.xpand.ui.editor.codeassist
org.eclipse.xpand.ui.editor.color
org.eclipse.xpand.ui.editor.outline
org.eclipse.xpand.ui.editor.scanning
org.eclipse.xpand.ui.refactoring.actions
org.eclipse.xpand.ui.refactoring.renamedefine
org.eclipse.xpand.ui.wizard