CCO.Tree.Parser

A set of simple parsing utilities that facilitate the conversion from ATerms to Trees.

Parsing ATerms

data TreeParser a

Parser that consumes ATerms and, if successful, produces a value of a specified type.

Instances

Functor TreeParser

integer :: TreeParser Integer

A TreeParser that consumes an Integer term.

float :: TreeParser Double

A TreeParser that consumes a Float term.

string :: TreeParser String

A TreeParser that consumes a String term.

app :: Con -> ArgumentParser a -> TreeParser a infix 4

A TreeParser that consumes an application of a given constructor and that uses a specified ArgumentParser to parse the argument terms of the application.

tuple :: ArgumentParser a -> TreeParser a

A TreeParser that consumes a tuple term and that uses a specified ArgumentParser to parse the component terms of the tuple.

list :: [TreeParser a] -> TreeParser [a]

A TreeParser that consumes a list term and that uses a specified family of TreeParsers to parse the elements of the list.

parseTree :: [TreeParser a] -> ATerm -> Feedback a

Uses a family of TreeParsers to parse a given ATerm.

Parsing arguments

data ArgumentParser a

Parser that consumes a list of ATerms and, if successful, produces a value of a specified type.

Instances

Functor ArgumentParser

Applicative ArgumentParser

arg :: Tree a => ArgumentParser a

An ArgumentParser that consumes a single ATerm, converting it to a Tree of the appropriate type.