46 lines
1.4 KiB
Ruby
46 lines
1.4 KiB
Ruby
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# -*- coding: utf-8; frozen_string_literal: true -*-
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#
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#--
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# Copyright (C) 2009-2019 Thomas Leitner <t_leitner@gmx.at>
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#
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# This file is part of kramdown which is licensed under the MIT.
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#++
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#
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module Kramdown
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module Utils
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# Methods for registering configurable extensions.
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module Configurable
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# Create a new configurable extension called +name+.
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#
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# Three methods will be defined on the calling object which allow to use this configurable
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# extension:
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#
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# configurables:: Returns a hash of hashes that is used to store all configurables of the
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# object.
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#
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# <name>(ext_name):: Return the configured extension +ext_name+.
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#
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# add_<name>(ext_name, data=nil, &block):: Define an extension +ext_name+ by specifying either
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# the data as argument or by using a block.
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def configurable(name)
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unless respond_to?(:configurables)
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singleton_class.send(:define_method, :configurables) do
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@_configurables ||= Hash.new {|h, k| h[k] = {} }
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end
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end
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singleton_class.send(:define_method, name) do |data|
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configurables[name][data]
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end
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singleton_class.send(:define_method, "add_#{name}".intern) do |data, *args, &block|
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configurables[name][data] = args.first || block
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end
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end
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end
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end
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end
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