xml-stylesheet.rb

# frozen_string_literal: false
require "rss/utils"

module RSS

module XMLStyleSheetMixin
    attr_accessor :xml_stylesheets
    def initialize(*args)
      super
      @xml_stylesheets = []
    end

private
    def xml_stylesheet_pi
      xsss = @xml_stylesheets.collect do |xss|
        pi = xss.to_s
        pi = nil if /\A\s*\z/ =~ pi
        pi
      end.compact
      xsss.push("") unless xsss.empty?
      xsss.join("\n")
    end
  end

class XMLStyleSheet

include Utils

ATTRIBUTES = %w(href type title media charset alternate)

GUESS_TABLE = {
      "xsl" => "text/xsl",
      "css" => "text/css",
    }

attr_accessor(*ATTRIBUTES)
    attr_accessor(:do_validate)
    def initialize(*attrs)
      if attrs.size == 1 and
          (attrs.first.is_a?(Hash) or attrs.first.is_a?(Array))
        attrs = attrs.first
      end
      @do_validate = true
      ATTRIBUTES.each do |attr|
        __send__("#{attr}=", nil)
      end
      vars = ATTRIBUTES.dup
      vars.unshift(:do_validate)
      attrs.each do |name, value|
        if vars.include?(name.to_s)
          __send__("#{name}=", value)
        end
      end
    end

def to_s
      rv = ""
      if @href
        rv << %Q[<?xml-stylesheet]
        ATTRIBUTES.each do |name|
          if __send__(name)
            rv << %Q[ #{name}="#{h __send__(name)}"]
          end
        end
        rv << %Q[?>]
      end
      rv
    end

remove_method(:href=)
    def href=(value)
      @href = value
      if @href and @type.nil?
        @type = guess_type(@href)
      end
      @href
    end

remove_method(:alternate=)
    def alternate=(value)
      if value.nil? or /\A(?:yes|no)\z/ =~ value
        @alternate = value
      else
        if @do_validate
          args = ["?xml-stylesheet?", %Q[alternate="#{value}"]]
          raise NotAvailableValueError.new(*args)
        end
      end
      @alternate
    end

def setup_maker(maker)
      xss = maker.xml_stylesheets.new_xml_stylesheet
      ATTRIBUTES.each do |attr|
        xss.__send__("#{attr}=", __send__(attr))
      end
    end

private
    def guess_type(filename)
      /\.([^.]+)$/ =~ filename
      GUESS_TABLE[$1]
    end

end
end

docroot: /home/induvedam/public_html

curdir: /opt/alt/ruby25/lib64/ruby/2.5.0/rss

	.	4096
	..	4096
X	0.9.rb	10865
X	1.0.rb	9867
X	2.0.rb	3510
X	atom.rb	29596
	content	34
X	content.rb	890
X	converter.rb	3991
	dublincore	49
X	dublincore.rb	4407
X	image.rb	4908
X	itunes.rb	10316
	maker	4096
X	maker.rb	1824
X	parser.rb	15987
X	rexmlparser.rb	995
X	rss.rb	35662
X	slash.rb	1360
X	syndication.rb	1928
X	taxonomy.rb	3271
X	trackback.rb	6877
X	utils.rb	5257
X	xml-stylesheet.rb	2210
X	xml.rb	1534
X	xmlparser.rb	1690
X	xmlscanner.rb	2185