RGen::Instantiator::NodebasedXMLInstantiator

Public Class Methods

new(env) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 66
def initialize(env)
  super
  @env = env
  @stack = []
end

set_prune_level(level) click to toggle source

The prune level is the number of parent/children associations which is kept when the instantiator ascents the XML tree. If the level is 2, information for the node's children and the childrens' children will be available as an XMLNodeDescriptor object. If the level is 0 no pruning will take place, i.e. the whole information is kept until the end of the instantiation process. 0 is default.

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 19
def set_prune_level(level)
  @prune_level = level
end

Public Instance Methods

end_element() click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 95
def end_element
  node = @stack.pop
  on_ascent(node)
  prune_children(node, self.class.prune_level - 1) if self.class.prune_level > 0
end

instantiate(text) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 77
def instantiate(text)
  parse(text)
  resolve
end

instantiate_file(file) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 72
def instantiate_file(file)
  File.open(file) { |f| parse(f.read)}
  resolve
end

namespaces() click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 120
def namespaces
  @visitor.namespaces if @visitor
end

on_ascent(node) click to toggle source

This method is called when the XML parser goes up the tree. An XMLNodeDescriptor node describes the current node. Implementing classes must overwrite this method.

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 116
def on_ascent(node)
  raise "Overwrite this method !"
end

on_chardata(str) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 101
def on_chardata(str)
  node = @stack.last
  node.chardata << str
end

on_descent(node) click to toggle source

This method is called when the XML parser goes down the tree. An XMLNodeDescriptor node describes the current node. Implementing classes must overwrite this method.

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 109
def on_descent(node)
  raise "Overwrite this method !"
end

parse(src) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 82
def parse(src)
  @visitor = Visitor.new(self)
  parser = Nokogiri::XML::SAX::Parser.new(@visitor)
  parser.parse(src)
  @visitor = nil
end

start_element(ns, qtag, prefix, tag, attributes) click to toggle source

# File lib/rgen/instantiator/nodebased_xml_instantiator.rb, line 89
def start_element(ns, qtag, prefix, tag, attributes)
  node = XMLNodeDescriptor.new(ns, qtag, prefix, tag, @stack[-1], [], attributes)
  @stack.push node
  on_descent(node)
end

Home Classes Methods

In Files

Parent

Namespace

Methods

Files

Class/Module Index

RGen::Instantiator::NodebasedXMLInstantiator

Public Class Methods

Public Instance Methods