Packages

minipeg

0.6.5
0.7.10 0.7.9 0.7.8 0.7.7 0.7.6 0.7.5 0.7.4 0.7.3 0.7.1 0.7.0 0.6.5 0.6.4 0.6.3 0.6.2 0.6.1 0.6.0 0.5.4 0.5.3 0.5.2 0.5.1 0.5.0 0.4.2 0.4.1 0.4.0 0.3.1 0.3.0 0.2.7 0.2.6 0.2.5 0.2.4 0.2.3 0.2.2 0.2.1 0.2.0 0.1.11 0.1.10 0.1.9 0.1.8 0.1.7 0.1.6 0.1.5 0.1.4 0.1.3 0.1.2 0.1.1 0.1.0

A simple easy to debug macro free peg parser library

HexDocs

Current section

Files

Jump to
Readme
46 Versions
0 Dependencies
Dependants
Files
Activity
minipeg lib minipeg satisfiers.ex
Raw

lib/minipeg/satisfiers.ex 

defmodule Minipeg.Satisfiers do

  use Minipeg.Types

  @moduledoc false



  @spec len_in_range(binary(), maybe(non_neg_integer()), maybe(non_neg_integer())) ::

          satisfier_result_t()

  def len_in_range(ast, max_len \\ nil, min_len \\ nil)



  def len_in_range(_ast, nil, nil) do

    raise ArgumentError, "cannot satisfy strings length without constraint"

  end



  def len_in_range(ast, max_len, min_len) do

    cond do

      max_len && String.length(ast) > max_len ->

        {:error,

         "string #{ast |> inspect} length #{String.length(ast)} exceeds allowed #{max_len}"}



      min_len && String.length(ast) < min_len ->

        {:error,

         "string #{ast |> inspect} length #{String.length(ast)} under required minimum #{min_len}"}



      true ->

        {:ok, ast}

    end

  end

end



# SPDX-License-Identifier: Apache-2.0