Class: XML::DSL

Inherits:
Object
  • Object
show all
Includes:
Views
Defined in:
lib/capcode/render/xml.rb,
lib/capcode/render/xml.rb

Overview

:nodoc:

Instance Method Summary collapse

Constructor Details

#initialize(helper, &block) ⇒ DSL

Returns a new instance of DSL.



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# File 'lib/capcode/render/xml.rb', line 6

def initialize( helper, &block )
  @__x_d_level = 0
  @__x_d_helper = helper
  @__x_d_helper.instance_variables.each do |ivar|
    self.instance_variable_set(ivar, @__x_d_helper.instance_variable_get(ivar))
  end
  @__x_d_builder = ""
  instance_eval(&block) if block
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(sym, *args, &block) ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 92

def method_missing(sym, *args, &block)
  if @__x_d_helper.respond_to?(sym, true)
    @__x_d_helper.send(sym, *args, &block)
  elsif instance_variables.include?(ivar = "@__x_d_#{sym}")
    instance_variable_get(ivar)
  elsif !@__x_d_helper.nil? && @__x_d_helper.instance_variables.include?(ivar)
    @__x_d_helper.instance_variable_get(ivar)
  else
    tag!(sym, *args, &block)
  end
end

Instance Method Details

#_(x) ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 20

def _(x)
  @__x_d_builder << __ << x << "\n"
end

#__ ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 16

def __
  " "*@__x_d_level
end

#cdata(x = "", &block) ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 74

def cdata( x = "", &block )
  @__x_d_builder << __ << "<![CDATA["
  if x.match( /\n/ ) or block
    @__x_d_level += 2
    @__x_d_builder << "\n" << __ << x << "\n" if x.size > 0
    instance_eval(&block) if block
    @__x_d_level -= 2
    @__x_d_builder << __ 
  else
    @__x_d_builder << x if x.size > 0
  end
  @__x_d_builder << "]]>\n"
end

#tag!(sym, *args, &block) ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 24

def tag!(sym, *args, &block)
  tag = {
    :bra => "<",
    :ket => " />",
    :name => sym.id2name,
    :close => block_given?(),
    :attrs => "",
    :value => ""
  }
          
  args.each do |a|
    if a.class == Hash
      a.each do |k, v|
        tag[:attrs] << " #{k.to_s}='#{v}'"
      end
    elsif a.class == String
      tag[:close] = true
      tag[:value] << a << "\n"
    end
  end
  
  if tag[:name].match( /\?$/ )
    tag[:name].gsub!( /\?$/, "" )
    tag[:bra] = "<?"
    tag[:ket] = "?>"
    
    if tag[:close] == true
      raise XML::TagError, "Malformated traitment tag!"
    end
  end

  @__x_d_builder << __ << tag[:bra] << "#{tag[:name]}#{tag[:attrs]}"
  if tag[:close]
    @__x_d_builder << ">\n"
  else
    @__x_d_builder << tag[:ket] << "\n"
  end
  
  @__x_d_level += 2
  
  @__x_d_builder << __ << tag[:value] if tag[:value].size > 0
  instance_eval(&block) if block
  
  @__x_d_level -= 2
  
  if tag[:close]
    @__x_d_builder << __ << "</#{tag[:name]}>\n"
  end
end

#to_s ⇒ Object 



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# File 'lib/capcode/render/xml.rb', line 88

def to_s
  @__x_d_builder
end