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minipeg

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A simple easy to debug macro free peg parser library

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minipeg lib minipeg parser.ex
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lib/minipeg/parser.ex 

defmodule Minipeg.Parser do

  use Minipeg.Types



  alias Minipeg.{Cache, Failure, Input, Success}



  @moduledoc ~S"""

  A struct containung a parser function and a name

  """



  defstruct name: "",

            parser_function: nil



  @type t :: %__MODULE__{parser_function: parser_function_t(), name: binary()}

  @type result_tuple_t(ast_t) :: {:ok, ast_t} | {:error, binary()}



  @spec new(binary(), parser_function_t()) :: t

  def new(name, parser_function), do: %__MODULE__{name: name, parser_function: parser_function}



  @spec parse(t(), Input.t(), Cache.t()) :: result_t

  def parse(%__MODULE__{parser_function: fun, name: name}, input, cache) do

    fun.(input, cache, name)

  end



  @spec parse_string(t(), binary()) :: result_tuple_t(any())

  def parse_string(%__MODULE__{parser_function: fun, name: name}, input_string) do

    case fun.(Input.new(input_string), Cache.empty(), name) do

      %Failure{} = f -> {:error, Failure.format(f)}

      %Success{ast: ast} -> {:ok, ast}

    end

  end

end



# SPDX-License-Identifier: Apache-2.0