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## The Language

The prerequisite for the creation of macros is to know the syntactic rules on which the language is basing. In appendix A the syntactic rules are described in detail.

- Structure of a CAD Instruction :
- Structure of a CAD Command :
- IF - Instruction :
- IF - THEN - Instruction :
- WHILE - Instruction :
- Blocks
- How to Leave Something Out :
- Defaults for Parameters
- Functions
- Constants
- Variables