javascript_parser.rb

class Logic::JavascriptParser

  def initialize(content)
    @raw_content = content
    JavascriptParser.new(params[:code_content])
  end

  def execute
    self.parse
    self.persist!
  end

  def parse
    raw_metas = @raw_content.scan(/\A\/\/\s==UserScript==(\w|\W)*\/\/\s==\/UserScript==$/)

    metas = {}
    raw_metas.split(/\r\n|\n|\r/).each do |line_with_meta|
      attribute_name = line_with_data.scan(/@\w+/)
      value = line_with_data.sub("// #{attribute_name}", '').strip
      if metas[attribute_name.sub('@', '').to_sym].present?
        metas[attribute_name.sub('@', '').to_sym] = [ metas[attribute_name.sub('@', '').to_sym], value].flatten
      else
        metas[attribute_name.sub('@', '').to_sym] = value
      end
    end

    @metas = metas
  end

  def persist!
    Script.new(@metas).save!
  end

end