Class: Rfm::SaxParser::Cursor

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Defined in:
lib/rfm/utilities/sax_parser.rb

Overview

A Cursor instance is created for each element encountered in the parsing run and is where the parsing result is constructed from the custom parsing template. The cursor is the glue between the handler and the resulting object build. The cursor receives input from the handler, loads the corresponding template data, and manipulates the incoming xml data to build the resulting object.

Each cursor is added to the stack when its element begins, and removed from the stack when its element ends. The cursor tracks all the important objects necessary to build the resulting object. If you call #cursor on the handler, you will always get the last object added to the stack. Think of a cursor as a framework of tools that accompany each element's build process.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(_tag, _handler, _parent = nil, _initial_attributes = nil) ⇒ Cursor

, caller_binding=nil)


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# File 'lib/rfm/utilities/sax_parser.rb', line 183

def initialize(_tag, _handler, _parent=nil, _initial_attributes=nil) #, caller_binding=nil)
#def initialize(_model, _obj, _tag, _handler)
	@tag     =  _tag
	@handler = _handler
	@parent = _parent || self
	@initial_attributes = _initial_attributes
	@level = @parent.level.to_i + 1
	@local_model = (model_elements?(@tag, @parent.model) || DEFAULT_CLASS.new)
	@element_attachment_prefs = attachment_prefs(@parent.model, @local_model, 'element')
	#@attribute_attachment_prefs = attachment_prefs(@parent.model, @local_model, 'attribute')
	
	if @element_attachment_prefs.is_a? Array
 	@new_element_callback = @element_attachment_prefs[1..-1]
 	@element_attachment_prefs = @element_attachment_prefs[0]
 	if @element_attachment_prefs.to_s == 'default'; @element_attachment_prefs = nil; end
 end
 
	#puts ["\nINITIALIZE_CURSOR tag: #{@tag}", "parent.object: #{@parent.object.class}", "local_model: #{@local_model.class}", "el_prefs: #{@element_attachment_prefs}",  "new_el_callback: #{@new_element_callback}", "attributes: #{@initial_attributes}"]

	self
end

Instance Attribute Details

#element_attachment_prefsObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def element_attachment_prefs
  @element_attachment_prefs
end

#handlerObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def handler
  @handler
end

#initial_attributesObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def initial_attributes
  @initial_attributes
end

#levelObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def level
  @level
end

#local_modelObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def local_model
  @local_model
end

#modelObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def model
  @model
end

#new_element_callbackObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def new_element_callback
  @new_element_callback
end

#objectObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def object
  @object
end

#parentObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def parent
  @parent
end

#tagObject

model - currently active model (rename to current_model) local_model - model of this cursor's tag (rename to local_model) newtag - incoming tag of yet-to-be-created cursor. Get rid of this if you can. element_attachment_prefs - local object's attachment prefs based on local_model and current_model. level - cursor depth


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# File 'lib/rfm/utilities/sax_parser.rb', line 157

def tag
  @tag
end

Class Method Details

.get_constant(klass) ⇒ Object

Main get-constant method


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# File 'lib/rfm/utilities/sax_parser.rb', line 165

def self.get_constant(klass)
#puts "Getting constant '#{klass.to_s}'"
	
	case
	when klass.is_a?(Class); klass
	#when (klass=klass.to_s) == ''; DEFAULT_CLASS
 	when klass.nil?; DEFAULT_CLASS
	when klass == ''; DEFAULT_CLASS
	when klass[/::/]; eval(klass)
	when defined?(klass); const_get(klass)  ## == 'constant'; const_get(klass)
	#when defined?(klass); eval(klass) # This was for 'element_handler' pattern.
	else
		Rfm.log.warn "Could not find constant '#{klass}'"
		DEFAULT_CLASS
	end

end

Instance Method Details

#accessor?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 529

def accessor?(_model=@model); _model && _model['accessor'] && [_model['accessor']].flatten.compact; end

#as_name?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 526

def as_name?(_model=@model); _model && _model['as_name']; end

#assign_attributes(_attributes) ⇒ Object

Assign attributes to element.


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# File 'lib/rfm/utilities/sax_parser.rb', line 405

def assign_attributes(_attributes)
    if _attributes && !_attributes.empty?

		_attributes.each do |k,v|
			#attach_new_object(base_object, v, k, base_model, model_attributes?(k, new_model), 'attribute')}
			attr_model = model_attributes?(k, @local_model)
			
			label = label_or_tag(k, attr_model)
			
			prefs = [attachment_prefs(@model, attr_model, 'attribute')].flatten(1)[0]
			
			shared_var_name = shared_variable_name(prefs)
			(prefs = "shared") if shared_var_name
			
			# Use local create_accessors prefs first, then more general ones.
			create_accessors = accessor?(attr_model) || create_accessors?(@model)
			#(create_accessors = create_accessors?(@model)) unless create_accessors && create_accessors.any?
			
			#puts ["\nATTACH_NEW_OBJECT 1", "type: #{type}", "label: #{label}", "base_object: #{base_object.class}", "new_object: #{new_object.class}", "delimiter: #{delimiter?(new_model)}", "prefs: #{prefs}", "shared_var_name: #{shared_var_name}", "create_accessors: #{create_accessors}"]
			@object._attach_object!(v, label, delimiter?(attr_model), prefs, 'attribute', :default_class=>DEFAULT_CLASS, :shared_variable_name=>shared_var_name, :create_accessors=>create_accessors)
			end
			
    end
end

#attach?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 522

def attach?(_model=@model); _model && _model['attach']; end

#attach_attributes?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 524

def attach_attributes?(_model=@model); _model && _model['attach_attributes']; end

#attach_elements?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 523

def attach_elements?(_model=@model); _model && _model['attach_elements']; end

#attach_new_element(name, new_object) ⇒ Object

def attach_new_object(base_object, new_object, name, base_model, new_model, type) label = label_or_tag(name, new_model) # Was this, which works fine, but not as efficient: # prefs = [attachment_prefs(base_model, new_model, type)].flatten(1) prefs = if type=='attribute' [attachment_prefs(base_model, new_model, type)].flatten(1) else @element_attachment_prefs end shared_var_name = shared_variable_name(prefs) (prefs = “shared”) if shared_var_name # Use local create_accessors prefs first, then more general ones. create_accessors = accessor?(new_model) (create_accessors = create_accessors?(base_model)) unless create_accessors && create_accessors.any?

# # This is NEW!
# translator = new_model['translator']
# if translator
#   new_object = base_object.send translator, name, new_object
# end

#puts [“nATTACH_NEW_OBJECT 1”, “type: #type”, “label: #label”, “base_object: #Rfm::SaxParser::Cursor.base_objectbase_object.class”, “new_object: #Rfm::SaxParser::Cursor.new_objectnew_object.class”, “delimiter: #delimiter?(new_model)”, “prefs: #prefs”, “shared_var_name: #shared_var_name”, “create_accessors: #create_accessors”] base_object._attach_object!(new_object, label, delimiter?(new_model), prefs, type, :default_class=>DEFAULT_CLASS, :shared_variable_name=>shared_var_name, :create_accessors=>create_accessors) #puts [“nATTACH_NEW_OBJECT 2: #Rfm::SaxParser::Cursor.base_objectbase_object.class with ”, label, delimiter?(new_model), prefs, type, :shared_variable_name=>shared_var_name, :create_accessors=>create_accessors]

# if type == 'attribute'
#   puts ["\nATTACH_ATTR", "name: #{name}", "label: #{label}", "new_object: #{new_object.class rescue ''}", "base_object: #{base_object.class rescue ''}", "base_model: #{base_model['name'] rescue ''}", "new_model: #{new_model['name'] rescue ''}", "prefs: #{prefs}"]
# end

end


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# File 'lib/rfm/utilities/sax_parser.rb', line 463

def attach_new_element(name, new_object)   #(base_object, new_object, name, base_model, new_model, type)
	label = label_or_tag(name, @local_model)
	
	# Was this, which works fine, but not as efficient:
	# prefs = [attachment_prefs(base_model, new_model, type)].flatten(1)[0]
	prefs = @element_attachment_prefs
	
	shared_var_name = shared_variable_name(prefs)
	(prefs = "shared") if shared_var_name
	
	# Use local create_accessors prefs first, then more general ones.
	create_accessors = accessor?(@local_model) || create_accessors?(@parent.model)
	#(create_accessors = create_accessors?(@parent.model)) unless create_accessors && create_accessors.any?
	
      # # This is NEW!
      # translator = new_model['translator']
      # if translator
      #   new_object = base_object.send translator, name, new_object
      # end
	
	
	#puts ["\nATTACH_NEW_ELEMENT 1", "type: #{type}", "label: #{label}", "base_object: #{base_object.class}", "new_object: #{new_object.class}", "delimiter: #{delimiter?(new_model)}", "prefs: #{prefs}", "shared_var_name: #{shared_var_name}", "create_accessors: #{create_accessors}"]
	@parent.object._attach_object!(new_object, label, delimiter?(@local_model), prefs, 'element', :default_class=>DEFAULT_CLASS, :shared_variable_name=>shared_var_name, :create_accessors=>create_accessors)
	#puts ["\nATTACH_NEW_ELEMENT 2: #{base_object.class} with ", label, delimiter?(new_model), prefs, type, :shared_variable_name=>shared_var_name, :create_accessors=>create_accessors]
      # if type == 'attribute'
      #   puts ["\nATTACH_ATTR", "name: #{name}", "label: #{label}", "new_object: #{new_object.class rescue ''}", "base_object: #{base_object.class rescue ''}", "base_model: #{base_model['name'] rescue ''}", "new_model: #{new_model['name'] rescue ''}", "prefs: #{prefs}"]
      # end
end

#attachment_prefs(base_model, new_model, type) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 492

def attachment_prefs(base_model, new_model, type)
	case type
		when 'element'; attach?(new_model) || attach_elements?(base_model) #|| attach?(top.model) || attach_elements?(top.model)
		when 'attribute'; attach?(new_model) || attach_attributes?(base_model) #|| attach?(top.model) || attach_attributes?(top.model)
	end
end

#before_close?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 519

def before_close?(_model=@model); _model && _model['before_close']; end

#clean_member(val) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 567

def clean_member(val)
	if val.is_a?(Hash) || val.is_a?(Array); 
if val && val.empty?
	nil
elsif val && val.respond_to?(:values) && val.size == 1
	val.values[0]
else
	val
end
					else
val
# 	# Probably shouldn't do this on instance-var values. ...Why not?
# 		if val.instance_variables.size < 1
# 			nil
# 		elsif val.instance_variables.size == 1
# 			val.instance_variable_get(val.instance_variables[0])
# 		else
# 			val
# 		end
					end
end

#clean_members(obj = @object) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 539

def clean_members(obj=@object)
	#puts ["CURSOR.clean_members: #{object.class}", "tag: #{tag}", "model-name: #{model[:name]}"]
					# 	cursor.object = clean_member(cursor.object)
					# 	clean_members(ivg(shared_attribute_var, obj))
	if obj.is_a?(Hash)
		obj.dup.each do |k,v|
			obj[k] = clean_member(v)
			yield(v) if block_given?
		end
	elsif obj.is_a?(Array)
		obj.dup.each_with_index do |v,i|
			obj[i] = clean_member(v)
			yield(v) if block_given?
		end
	else	
obj.instance_variables.each do |var|
	dat = obj.instance_variable_get(var)
	obj.instance_variable_set(var, clean_member(dat))
	yield(dat) if block_given?
end
	end
					# 	obj.instance_variables.each do |var|
					# 		dat = obj.instance_variable_get(var)
					# 		obj.instance_variable_set(var, clean_member(dat))
					# 		yield(dat) if block_given?
					# 	end
end

#compact?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 521

def compact?(_model=@model); _model && _model['compact']; end

#create_accessors?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 528

def create_accessors?(_model=@model); _model && _model['create_accessors'] && [_model['create_accessors']].flatten.compact; end

#delimiter?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 525

def delimiter?(_model=@model); _model && _model['delimiter']; end

#depth?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 518

def depth?(_model=@model); _model && _model['depth']; end

#each_before_close?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 520

def each_before_close?(_model=@model); _model && _model['each_before_close']; end

#element_handler?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 530

def element_handler?(_model=@model); _model && _model['element_handler']; end

#get_callback(callback, caller_binding = binding, defaults = {}) ⇒ Object

Parse callback instructions, compile & send callback method ### This method will send a method to an object, with parameters, and return a new object. Input: string, symbol, or array of strings Returns: object Default options:

:object=>object
:method=>'a method name string or symbol'
:params=>"params string to be eval'd in context of cursor"

Usage:

callback: send a method (or eval string) to an object with parameters.
string: a string to be eval'd in context of current object.
symbol: method to be called on current object.
array: object, method, params.
  object: <object or string>
  method: <string or symbol>
  params: <string>

TODO-MAYBE: Change param order to (method, object, params),

might help confusion with param complexities.

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# File 'lib/rfm/utilities/sax_parser.rb', line 338

def get_callback(callback, caller_binding=binding, defaults={})
input = callback.is_a?(Array) ? callback.dup : callback
#puts "\nGET_CALLBACK tag: #{tag}, callback: #{callback}"
params = case
 when input.is_a?(String) || input.is_a?(Symbol)
   [nil, input]
  # when input.is_a?(Symbol)
  #   [nil, input]
  when input.is_a?(Array)
  	#puts ["\nCURSOR#get_callback is an array", input]
    case
    when input[0].is_a?(Symbol)
      [nil, input].flatten(1)
    when input[1].is_a?(String) && ( input.size > 2 || (remove_colon=(input[1][0,1]==":"); remove_colon) )
      code_or_method = input[1].dup
    	code_or_method[0]='' if remove_colon
      code_or_method = code_or_method.to_sym
      output = [input[0], code_or_method, input[2..-1]].flatten(1)
      #puts ["\nCURSOR#get_callback converted input[1] to symbol", output]
      output
    else # when input is ['object', 'sym-or-str', 'param1',' param2', ...]
      input
    end
  else
    []
  end
  
  obj_raw = params.shift
  #puts ["\nOBJECT_RAW:","class: #{obj_raw.class}", "object: #{obj_raw}"]
  obj = if obj_raw.is_a?(String); eval(obj_raw.to_s, caller_binding); else obj_raw; end
  if obj.nil? || obj == ''; obj = defaults[:object] || @object; end
  #puts ["\nOBJECT:","class: #{obj.class}", "object: #{obj}"]
    
  code = params.shift || defaults[:method]
  params.each_with_index{|str,i| if str.is_a?(String); params[i] = eval(str, caller_binding); end }
  params = defaults[:params] if params.size == 0
 	#puts ["\nGET_CALLBACK tag: #{@tag}" ,"callback: #{callback}", "obj.class: #{obj.class}", "code: #{code}", "params-class #{params.class}"]
  case
  when (code.nil? || code=='')
  	obj
  when (code.is_a?(Symbol) || params)
   #puts ["\nGET_CALLBACK sending symbol", obj.class, code] 
    obj.send *[code, params].flatten(1).compact
  when code.is_a?(String)
  	#puts ["\nGET_CALLBACK evaling string", obj.class, code]
    obj.send :eval, code
    #eval(code, caller_binding)
  end		      
end

#get_constant(klass) ⇒ Object

UTILITY #####


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# File 'lib/rfm/utilities/sax_parser.rb', line 509

def get_constant(klass)
	self.class.get_constant(klass)
end

#initialize_with?(_model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 527

def initialize_with?(_model=@model); _model && _model['initialize_with']; end

#ivg(name, _object = @object) ⇒ Object

Methods for current _model


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# File 'lib/rfm/utilities/sax_parser.rb', line 514

def ivg(name, _object=@object); _object.instance_variable_get "@#{name}"; end

#ivs(name, value, _object = @object) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 515

def ivs(name, value, _object=@object); _object.instance_variable_set "@#{name}", value; end

#label_or_tag(_tag = @tag, new_model = @local_model) ⇒ Object

This might be broken.


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# File 'lib/rfm/utilities/sax_parser.rb', line 536

def label_or_tag(_tag=@tag, new_model=@local_model); as_name?(new_model) || _tag; end

#model_attributes?(which = nil, _model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 517

def model_attributes?(which=nil, _model=@model); _model && _model.has_key?('attributes') && ((_model['attributes'] && which) ? _model['attributes'].find{|a| a['name']==which} : _model['attributes']) ; end

#model_elements?(which = nil, _model = @model) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'lib/rfm/utilities/sax_parser.rb', line 516

def model_elements?(which=nil, _model=@model); _model && _model.has_key?('elements') && ((_model['elements'] && which) ? _model['elements'].find{|e| e['name']==which} : _model['elements']) ; end

#process_new_element(caller_binding = binding) ⇒ Object

Decides how to attach element & attributes associated with this cursor.


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# File 'lib/rfm/utilities/sax_parser.rb', line 227

def process_new_element(caller_binding=binding)
 
 	#puts ["\nPROCESS_NEW_ELEMENT tag: #{@tag}", "@element_attachment_prefs: #{@element_attachment_prefs}", "@local_model: #{local_model}"]
 
 	new_element = @new_element_callback ? get_callback(@new_element_callback, caller_binding) : nil
 	
 	case
 	
 	# when inital cursor, just set model & object.
 	when @tag == '__TOP__';
	#puts "__TOP__"
 	  @model = @handler.template
 	  @object = @handler.initial_object
 	
 	when @element_attachment_prefs == 'none';
 		#puts "__NONE__"
 	  @model = @parent.model #nil
 	  @object = @parent.object #nil
 	  
 	  if @initial_attributes && @initial_attributes.any? #&& @attribute_attachment_prefs != 'none'
  	  assign_attributes(@initial_attributes) #, @object, @model, @local_model) 
  	end
 	
		when @element_attachment_prefs == 'cursor';
			#puts "__CURSOR__"
		  @model = @local_model
       @object = new_element || DEFAULT_CLASS.allocate

	if @initial_attributes && @initial_attributes.any? #&& @attribute_attachment_prefs != 'none'
  	  assign_attributes(@initial_attributes) #, @object, @model, @local_model) 
  	end
   	
		else
			#puts "__OTHER__"
		  @model = @local_model
	@object = new_element || DEFAULT_CLASS.allocate
    
	if @initial_attributes && @initial_attributes.any? #&& @attribute_attachment_prefs != 'none'
  	  assign_attributes(@initial_attributes) #, @object, @model, @local_model) 
  	end
    
	if !delimiter?(@local_model) 
			#attach_new_object(@parent.object, @object, @tag, @parent.model, @local_model, 'element')
			attach_new_element(@tag, @object)
		end  		
 	end

     self
end

#receive_attribute(name, value) ⇒ Object

Receive a single attribute (any named attribute or text)


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# File 'lib/rfm/utilities/sax_parser.rb', line 209

def receive_attribute(name, value)
	#puts ["\nRECEIVE_ATTR '#{name}'", "value: #{value}", "tag: #{@tag}", "object: #{object.class}", "model: #{model['name']}"]
	new_att = {name=>value}    #.new.tap{|att| att[name]=value}

	assign_attributes(new_att) #, @object, @model, @local_model)
rescue
	Rfm.log.warn "Error: could not assign attribute '#{name.to_s}' to element '#{self.tag.to_s}': #{$!}"
end

#receive_end_element(_tag) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 278

def receive_end_element(_tag)
	#puts ["\nRECEIVE_END_ELEMENT '#{_tag}'", "tag: #{@tag}", "object: #{@object.class}", "model: #{@model['name']}", "local_model: #{@local_model['name']}"]
	#puts ["\nEND_ELEMENT_OBJECT", object.to_yaml]
 	begin
 		      	
if _tag == @tag && (@model == @local_model)
  		# Data cleaup
	compactor_settings = compact? || compact?(top.model)
	#(compactor_settings = compact?(top.model)) unless compactor_settings # prefer local settings, or use top settings.
	(clean_members {|v| clean_members(v){|v| clean_members(v)}}) if compactor_settings
end

 		if (delimiter = delimiter?(@local_model); delimiter && !['none','cursor'].include?(@element_attachment_prefs.to_s))
		#attach_new_object(@parent.object, @object, @tag, @parent.model, @local_model, 'element')
		attach_new_element(@tag, @object)
	end  		

  	if _tag == @tag #&& (@model == @local_model)
	# End-element callbacks.
	#run_callback(_tag, self)
	callback = before_close?(@local_model)
	get_callback(callback, binding) if callback
end

if _tag == @tag
	# return true only if matching tags
	return true
end

      # # return true only if matching tags
      # if _tag == @tag
      #   return true
      # end

return
# 					rescue
# 					 Rfm.log.debug "Error: end_element tag '#{_tag}' failed: #{$!}"
  end
end

#receive_start_element(_tag, _attributes) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 218

def receive_start_element(_tag, _attributes)
 #puts ["\nRECEIVE_START '#{_tag}'", "current_object: #{@object.class}", "current_model: #{@model}"]
					new_cursor = Cursor.new(_tag, @handler, self, _attributes) #, binding)
					new_cursor.process_new_element(binding)

  new_cursor
end

#shared_variable_name(prefs) ⇒ Object


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# File 'lib/rfm/utilities/sax_parser.rb', line 499

def shared_variable_name(prefs)
	rslt = nil
	if prefs.to_s[0,1] == "_"
		rslt = prefs.to_s[1..-1] #prefs.gsub(/^_/, '')
	end
end