88 lines
3.0 KiB
Ruby
88 lines
3.0 KiB
Ruby
#-- encoding: UTF-8
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#-- copyright
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# ChiliProject is a project management system.
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#
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# Copyright (C) 2010-2012 the ChiliProject Team
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module ChiliProject
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module Liquid
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# Legacy is used to support older Redmine style macros by converting
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# them to Liquid objects (tags, filters) on the fly by doing basic
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# string substitution. This is done before the Liquid processing
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# so the converted macros work like normal
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#
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module Legacy
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# Holds the list of legacy macros
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#
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# @param [Regexp] :match The regex to match on the legacy macro
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# @param [String] :replace The string to replace with. E.g. "%" converts
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# "{{ }}" to "{% %}"
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# @param [String] :new_name The new name of the Liquid object
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def self.macros
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@macros ||= {}
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end
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# "Runs" legacy macros by doing a gsub of their values to the new Liquid ones
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#
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# @param [String] content The pre-Liquid content
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def self.run_macros(content)
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macros.each do |macro_name, macro|
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next unless macro[:match].present? && macro[:replace].present?
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content = content.gsub(macro[:match]) do |match|
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# Use block form so $1 and $2 are set properly
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args = " '#{$2}'" if $2
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"{#{macro[:replace]} #{macro[:new_name]}#{args} #{macro[:replace]}}"
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end
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end
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content
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end
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# Add support for a legacy macro syntax that was converted to liquid
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#
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# @param [String] name The legacy macro name
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# @param [Symbol] liquid_type The type of Liquid object to use. Supported: :tag
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# @param [optional, String] new_name The new name of the liquid object, used
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# to rename a macro
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def self.add(name, liquid_type, new_name=nil)
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new_name = name unless new_name.present?
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case liquid_type
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when :tag
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macros[name.to_s] = {
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# Example values the regex matches
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# {{name}}
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# {{ name }}
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# {{ name 'arg' }}
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# {{ name('arg') }}
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:match => Regexp.new(/\{\{(#{name})(?:\(([^\}]*)\))?\}\}/),
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:replace => "%",
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:new_name => new_name
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}
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end
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end
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end
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# FIXME: remove the deprecated syntax for 4.0, provide a way to migrate
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# existing pages to the new syntax.
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#
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# See ChiliProject::Liquid::Tags for the registration of the tags.
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Legacy.add('child_pages', :tag)
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Legacy.add('hello_world', :tag)
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Legacy.add('include', :tag)
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# Transform the old textile TOC tags to syntax suported by liquid
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Legacy.add('toc', :tag)
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Legacy.add('>toc', :tag, "toc_right")
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Legacy.add('<toc', :tag, "toc_left")
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end
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end
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