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require 'edn/version'
require 'edn/types'
require 'edn/core_ext'
require 'edn/parser'
require 'edn/transform'

module EDN
  @parser = EDN::Parser.new
  @transform = EDN::Transform.new
  @tags = Hash.new

  def self.read(edn)
    @transform.apply(@parser.parse(edn))
  end

  def self.register(tag, func = nil, &block)
    if block_given?
      func = block
    end

    raise "EDN.register requires a block or callable." if func.nil?

    if func.is_a?(Class)
      @tags[tag] = lambda { |*args| func.new(*args) }
    else
      @tags[tag] = func
    end
  end

  def self.unregister(tag)
    @tags[tag] = nil
  end

  def self.tagged_value(tag, value)
    func = @tags[tag]
    if func
      func.call(value)
    else
      EDN::Type::Unknown.new(tag, value)
    end
  end

  def self.tagout(tag, value)
    ["##{tag}", value.to_edn].join(" ")
  end

  def self.symbol(text)
    EDN::Type::Symbol.new(text)
  end

  def self.list(*values)
    EDN::Type::List.new(*values)
  end
end

EDN.register("inst") do |value|
  DateTime.parse(value)
end

EDN.register("uuid") do |value|
  EDN::Type::UUID.new(value)
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
edn-0.9.4	lib/edn.rb
edn-0.9.3	lib/edn.rb
edn-0.9.2	lib/edn.rb