• OEP5: Simplicity and Expressive Power
• Phase 1: Unified Naming
• Phase 2: Functions are Values
• Technical requirements for treating functions as values
• Social implications of treating functions as values
• Phase 3: Shapes are Values
• Phase 4: Generalized List Notation
• Phase 5: Functors
• Phase 6: Packages are Values
• Previous Drafts, Soon to be Deleted
• Phase 1: Unified Naming
• Entities and Definitions
• Values
• Functions
• Shapes
• Groups
• Modules
• Scripts
• Implementation
• Appendix: OpenSCAD2--Everything Is A Value
• Functions as Values
• Programming with Modules and Groups
• Functions that take Shape as Arguments
• Functions that return Shapes as Results
• Unifying Lists and Groups
• What To Do about Modules
• Functors are Generalized Modules
• Generalized List Syntax
• Other Changes
• Phased Implementation
• Conclusions