Class: Fabulator::Lib::Template

Inherits:
Structural
  • Object
show all
Defined in:
lib/fabulator/lib/function.rb

Instance Method Summary collapse

Methods inherited from Structural

#accepts_structural?, accepts_structural?, contained_in, contains, element, #initialize, structurals

Constructor Details

This class inherits a constructor from Fabulator::Structural

Instance Method Details

#compile_xml(xml, context) ⇒ Object 



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# File 'lib/fabulator/lib/function.rb', line 40

def compile_xml(xml, context)
  super

  @actions = [ ]
  @wrapper = [ ]

  if !xml.nil?
    ctx = nil
    if xml.name == 'template' && xml.namespaces.namespace.href == FAB_LIB_NS
      ctx = @context.merge(xml)
      @wrapper = [ '', '' ]
    else
      ctx = @context.merge
      # we need to set @wrapper to [ begin, end ]
      s = ""
      if (xml.namespaces.namespace.prefix rescue nil)
        s += xml.namespaces.namespace.prefix + ":"
      end
      s += xml.name
      e = "</" + s + ">"
      s = "<" + s
      xml.each_attr do |attr|
        s += " "
        if attr.ns?
          s += attr.ns.prefix + ":"
        end
        s += attr.name + "="
        if attr.value =~ /"/
          s += "'" + attr.value.gsub(/&/, '&amp;').gsub(/</, '&lt;').gsub(/'/, '&quot;') + "'"
        else
          s += '"' + attr.value.gsub(/&/, '&amp;').gsub(/</, '&lt;') + '"'
        end
      end
      s += ">"
      @wrapper = [ s, e ]
    end
    xml.each_child do |node|
      if node.element?
        if ctx.action_exists?((node.namespaces.namespace.href rescue nil), node.name)
          @actions << ctx.compile_action(node)
        else 
          a = self.class.new
          a.compile_xml(node, ctx)
          @actions << a
        end
      elsif node.text? || node.cdata?
        @actions << node.content
      end
    end
  end

  self
end

#run(context, autovivify = false) ⇒ Object 



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# File 'lib/fabulator/lib/function.rb', line 94

def run(context, autovivify = false)
  s = ''
  @context.with(context) do |ctx|
    @actions.each do |action|
      if action.is_a?(String)
        s += action
      else
        r = action.run(ctx, autovivify)
        s += r.collect { |v| v.to([FAB_NS, 'string'], ctx).value }.join('')
      end
    end
  end
  s.gsub!(/^\s+/, '')
  s.gsub!(/\s+$/, '')
# we want to see if we need to remove a whitespace prefix
  indent = s.
           split(/[\x0a\0x0d]/).
           map{|l| (v=l[/^([\s]+)/].to_s.length; v==0)? nil : v }.
           compact.min
  s.gsub!(/^#{' '*indent.to_i}/, '')
  s = @wrapper.first + s + @wrapper.last
  return [ context.root.anon_node(s, [ FAB_NS, 'string' ]) ]
end