derive_label: Derive label of AST node.
Description
Determine the label of a given AST node.
NOTE: Should have data attached via reduce before calling.
Usage
derive_label(node, capture_units = FALSE, ...)
Value
A string with a label for the node
Arguments
- node
Abstract syntax tree node.
- capture_units
logical; Capture units from parenthesis ending a label
- ...
Other arguments, ignored