Feature Model Language

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type: component title: Feature Model Language created: '2026-05-25' updated: '2026-05-25' tags:

• domain/annotation
• domain/core status: developing related:
• 'Annotation Syntax'
• 'Feature Model View'
• 'Syntax Highlighting' sources:
• .raw/README.md
• .raw/plugin.xml

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Feature Model Language

Custom PSI language for defining hierarchical feature models.

File Type

Property	Value
Extension	.feature-model
Language ID	FeatureModel
FileType class	se.isselab.HAnS.featureModel.FeatureModelFileType
Parser class	se.isselab.HAnS.featureModel.FeatureModelParserDefinition

Related Languages (Annotation Files)

Extension	Language ID	FileType class
.feature-to-file (alias: .feature-file)	FileAnnotation	FileAnnotationFileType
.feature-to-folder (alias: .feature-folder)	FolderAnnotation	FolderAnnotationFileType
.code-annotation	CodeAnnotations	CodeAnnotationFileType

IDE Support

• Syntax highlighting — FeatureModelSyntaxHighlighterFactory + FeatureModelAnnotator
• Find usages — FeatureFindUsagesProvider
• References — FeatureReferenceContributor (cross-language, language="")
• File references — FileReferenceContributor
• Rename — FeatureNameInputValidator + RenameAction in StructureViewPopupMenu
• Scope enlarger — FeatureAnnotationScopeEnlarger (ensures annotations outside src/ are found)

Actions (StructureViewPopupMenu)

Action ID	Class	Description
RenameFeature	RenameAction	Rename feature across all annotations
AddFeature	AddAction	Add feature to model
DeleteFeature	DeleteAction	Delete feature from model

Related

• Annotation Syntax
• Feature Model View
• Syntax Highlighting
• Referencing Flow