package pratter

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pratter
- Pratter
  - Make
    
    Sup
  - SUPPORT

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This modules defines a functor whose image is a parser for terms with applications, binary and unary operators. These terms are specified in the argument of the functor.

The algorithm implemented is an extension of the Pratt parser. The Sunting Yard algorithm could also be used.

see https://dev.to/jrop/pratt-parsing

see https://effbot.org/zone/simple-top-down-parsing.htm

type associativity =

| Left
(*
If + is a left associative operator, x + y + z is parsed (x + y) + z.
*)
| Right
(*
If + is a right associative operator, x + y + z is parsed x + (y + z).
*)

Associativity of an operator.

type priority = float

Priority of operators. If * has a higher priority than +, than x + y * z is parsed x + (y * z).

module type SUPPORT = sig ... end

Types and utilities on terms that are to be Pratt parsed.

module Make (Sup : SUPPORT) : sig ... end