The user interface provides several commands each of which represents
a separate compilation step. The commands are hierarchically structured
and top-down ordered as depicted by the indentation tree below: Each
node can be called individually; inner nodes perform groups of
compilation steps so that the root is the complete compiler.
The command hierarchy:
compile horizon extron undeclare untype unmacro unor unlambda hitrans uncomma bastron untup flatter passtup deanon normalize footen verti classify codegenThe given order reflects the order the commands are executed during RELFUN compilation.