Crate regen

Expand description

§Regen

Regen is a language that defines a language. See README on GitHub

core: Core definition of the domain objects that are used to represent the Regen language
dynamic: Utils for dynamically generate AST for source code based on the Language object. Note that this only includes up to the AST, since parse tree hooks cannot be executed dynamically.
emit: Functionality to generate output from the Language struct.
grammar: Generated static implementation of the Regen language, generated by Regen itself
sdk: Generic implementations of functions and objects that are used to parse plain text into application specific objects.

impl_union: Generate union implementation for a union rule. Used in generated code.
list: helper for parsing a list of parameters using a TokenStream
merge_list_tail: Util macro to merge first and rest in a parse tree.
merge_list_tail_optional_first: Util macro to merge first and rest in a parse tree.
optional: Helper for parsing an optional parameter using a TokenStream
required: Helper for parsing a required parameter using a TokenStream
sdk: Macro that implements the language SDK.
tree_cast: Convenience macro for casting enum variants for AST and PT.