Sammal v0.1.0 Sammal.ParserV2 View Source

A parser for Sammal based on parser combinators.

Grammar

primitive   : number | symbol | string
form:       : ( expression* )
expression  : quoted | primitive | form
quoted      : ' expression
sammal      : expression+

Link to this section Summary

Types

error()

parser()

result()

Functions

expression()

Parse an expression - either a form or a primitive

form()

Parse parenthesis-enclosed forms

number()

Parse a number

primitive()

Parse a primitive expression

quoted()

Parse and extend a quoted expression

sammal()

Parse a Sammal program

string()

Parse a string

symbol()

Parse a symbol

token(value_or_predicate, error \\ :unexpected)

Parse a Sammal.Expr struct that matches a given value or predicate

Link to this section Types

error()

error() :: atom

parser()

parser() :: (input :: [Sammal.Expr] -> {:ok, result} | {:error, error})

result()

result() :: {value :: [Sammal.Expr], remaining :: [Sammal.Expr]}

Link to this section Functions

expression()

expression() :: parser

Parse an expression - either a form or a primitive.

form()

form() :: parser

Parse parenthesis-enclosed forms.

number()

number() :: parser

Parse a number.

primitive()

primitive() :: parser

Parse a primitive expression.

quoted()

quoted() :: parser

Parse and extend a quoted expression.

sammal()

sammal() :: parser

Parse a Sammal program.

string()

string() :: parser

Parse a string.

symbol()

symbol() :: parser

Parse a symbol.

token(value_or_predicate, error \\ :unexpected)

token(any | (any -> boolean), error) :: parser

Parse a Sammal.Expr struct that matches a given value or predicate.