Class: XX::Document

Inherits:
Object
  • Object
show all
Defined in:
lib/xx.rb,
lib/xx-0.1.0.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*a, &b) ⇒ Document

Returns a new instance of Document.



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# File 'lib/xx.rb', line 23

def initialize *a, &b
#--{{{
  @doc = ::REXML::Document::new *a, &b
  @stack = [@doc]
  @size = 0
#--}}}
end

Instance Attribute Details

#doc ⇒ Object (readonly)

–{{{



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# File 'lib/xx.rb', line 19

def doc
  @doc
end

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/xx.rb', line 21

def size
  @size
end

#stack ⇒ Object (readonly)

Returns the value of attribute stack.



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# File 'lib/xx.rb', line 20

def stack
  @stack
end

Instance Method Details

#<<(object) ⇒ Object

–}}}



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# File 'lib/xx.rb', line 84

def << object
#--{{{
  t, x = top, object

  if x
    case t
      when ::REXML::Document

        begin
          t <<
            case x
              when ::REXML::Document
                x.root || ::REXML::Text::new(x.to_s)
              when ::REXML::Element
                x
              when ::REXML::CData
                x
              when ::REXML::Text
                x
              else # string
                ::REXML::Text::new(x.to_s)
            end
        rescue
          if t.respond_to? "root"
            t = t.root
            retry
          else
            raise
          end
        end

      when ::REXML::Element
        t <<
          case x
            when ::REXML::Document
              x.root || ::REXML::Text::new(x.to_s)
            when ::REXML::Element
              x
            when ::REXML::CData
              #::REXML::Text::new(x.write(""))
              x
            when ::REXML::Text
              x
            else # string
              ::REXML::Text::new(x.to_s)
          end

      when ::REXML::Text
        t <<
          case x
            when ::REXML::Document
              x.write ""
            when ::REXML::Element
              x.write ""
            when ::REXML::CData
              x.write ""
            when ::REXML::Text
              x.write ""
            else # string
              x.to_s
          end

      else # other - try anyhow 
        t <<
          case x
            when ::REXML::Document
              x.write ""
            when ::REXML::Element
              x.write ""
            when ::REXML::CData
              x.write ""
            when ::REXML::Text
              x.write ""
            else # string
              x.to_s
          end
    end
  end

  @size += 1
  self
#--}}}
end

#create(element) ⇒ Object

–}}}



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# File 'lib/xx.rb', line 65

def create element
#--{{{
  push element
  begin
    object = nil
    additions =
      tracking_additions do
        object = yield element if block_given?
      end
    if object and additions.zero?
      self << object
    end
  ensure
    pop
  end
  self << element
  element
#--}}}
end

#pop ⇒ Object

–}}}



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# File 'lib/xx.rb', line 40

def pop
#--{{{
  @stack.pop unless @stack.size == 1
#--}}}
end

#pretty(port = '') ⇒ Object 



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# File 'lib/xx.rb', line 59

def pretty port = '' 
#--{{{
  @doc.write port, indent=2, transitive=false, ie_hack=true
  port
#--}}}
end

#push(element) ⇒ Object

–}}}



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# File 'lib/xx.rb', line 35

def push element
#--{{{
  @stack.push element
#--}}}
end

#to_str(port = "") ⇒ Object Also known as: to_s

–}}}



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# File 'lib/xx.rb', line 52

def to_str port = ""
#--{{{
  @doc.write port, indent=-1, transitive=false, ie_hack=true
  port
#--}}}
end

#top ⇒ Object

–}}}



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# File 'lib/xx.rb', line 30

def top
#--{{{
  @stack.last
#--}}}
end

#tracking_additions ⇒ Object

–}}}



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# File 'lib/xx.rb', line 45

def tracking_additions
#--{{{
  n = @size
  yield
  return @size - n
#--}}}
end