https://github.com/pyfa-org/eos/blob/8d8af6/data/cache_generator/modifier_builder/expression_tree/etree2actions.py
Eos - library for modeling EVE online ship fits. Contribute to pyfa-org/eos development by creating an account on GitHub.
data cacheexpression treeeosgeneratormodifier
https://www.boost.org/doc/libs/latest/libs/phoenix/doc/html/phoenix/examples/transforming_the_expression_tree.html
expression treetransforming