Bs-little-parser NPM

bs-little-parser

Little parser combinator for BuckleScript or Reason.

Usage

open BsLittleParser.Parser

let input = BsLittleParser.Input.{text = "abcabc  abc"; index = 0; whitespace = " "}

let abc = stringParser "abc"

let () =
  input
  |> rep abc
  |> Js.log

Type Input.t has a whitespace which specify a character sequence should be ignored.

Parsers

parser	description
str s	expect string
chr c	expect char
regex r	expect regex
p `<*>` q	execute q only if p succeeds
p `<\|>` q	execute q only if p fails
p `<*` q	same with `<*>` but throw the result of q away
p `*>` q	same with `<*>` but throw the result of p away
p `>>` fnq	apply the result of p to fnq then execute the return parser
p `^^` fn	apply the result of p to fn
rep p	repeat p
rep1 p	repeat p at least once
opt p	execute p zero or once
andPred p	execute p without consuming the input
notPred p	succeeds only if p fails without consuming the input