Class: Xampl::XMLPrinter

Inherits:
Object
  • Object
show all
Defined in:
lib/xamplr/to-xml.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(out, persisting = false) ⇒ XMLPrinter

Returns a new instance of XMLPrinter.



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# File 'lib/xamplr/to-xml.rb', line 7

def initialize(out, persisting=false)
  @out = out
  @persisting = persisting

  @ns_to_prefix = {}
  @start_body = ""
  @body = ""
  @attr_list = nil
  @mixed = 0
end

Instance Attribute Details

#body ⇒ Object

Returns the value of attribute body.



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# File 'lib/xamplr/to-xml.rb', line 5

def body
  @body
end

#mixed ⇒ Object

Returns the value of attribute mixed.



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# File 'lib/xamplr/to-xml.rb', line 5

def mixed
  @mixed
end

#ns_to_prefix ⇒ Object

Returns the value of attribute ns_to_prefix.



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# File 'lib/xamplr/to-xml.rb', line 5

def ns_to_prefix
  @ns_to_prefix
end

#out ⇒ Object

Returns the value of attribute out.



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# File 'lib/xamplr/to-xml.rb', line 5

def out
  @out
end

#persisting ⇒ Object

Returns the value of attribute persisting.



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# File 'lib/xamplr/to-xml.rb', line 5

def persisting
  @persisting
end

#start_body ⇒ Object

Returns the value of attribute start_body.



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# File 'lib/xamplr/to-xml.rb', line 5

def start_body
  @start_body
end

Instance Method Details

#_content(text) ⇒ Object Also known as: content 



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# File 'lib/xamplr/to-xml.rb', line 126

def _content(text)
  if nil != text then
    if text.kind_of? XMLText then
      @body << text.to_xml(self)
    else
      @body << content_esc(text)
    end
  end
end

#attr_esc(s) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 41

def attr_esc(s)
  if (s.kind_of? XamplObject)
    return attr_esc(s.to_xml)
  end

  result = s.to_s.dup
  #result = s.to_xml

  result.gsub!("&", "&amp;")
  result.gsub!("<", "&lt;")
  result.gsub!(">", "&gt;")
  result.gsub!("'", "&apos;")
  result.gsub!("\"", "&quot;")

  return result
end

#attribute(xampl) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 70

def attribute(xampl)
  @attr_list = []
  if (nil != xampl.attributes) then
    xampl.attributes.each do |attr_spec|
      prefix = (2 < attr_spec.length) ? register_ns(attr_spec[2]) : ""
      value = xampl.instance_variable_get(attr_spec[0])
      @attr_list << " " << prefix << attr_spec[1] << "='" << attr_esc(value) << "'" \
            unless nil == value
    end
  end
end

#content_esc(s) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 58

def content_esc(s)
  result = s.to_s.dup
  #result = s.to_xml

  return result if (s.kind_of? XamplObject)

  result.gsub!("&", "&amp;")
  result.gsub!("<", "&lt;")

  return result
end

#define_ns ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 146

def define_ns
  result = ""
  ns_to_prefix.each do |ns, prefix|
    result = sprintf("%s xmlns:%s='%s'", result, prefix[0..-2], ns)
  end
  return result
end

#done ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 154

def done
  out << start_body << define_ns << body
end

#end_element(tag, ns, empty) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 142

def end_element(tag, ns, empty)
  @body << "</" << register_ns(ns) << tag << ">" if (!empty)
end

#end_root_element(tag, ns, empty) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 138

def end_root_element(tag, ns, empty)
  @body << "</" << register_ns(ns) << tag << ">" if (!empty)
end

#now_as_before ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 22

def now_as_before
  @mixed = @mixed - 1 if (0 < @mixed)
end

#now_as_mixed ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 18

def now_as_mixed
  @mixed = @mixed + 1
end

#persist_attribute(xampl) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 82

def persist_attribute(xampl)
  @attr_list = []
  index = xampl.indexed_by[1..-1]
  if (nil != index) then
    value = xampl.get_the_index
    @attr_list << " " << index << "='" << attr_esc(value) << "'" if value
  end
end

#persisted_element(tag, ns) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 122

def persisted_element(tag, ns)
  @body << "<" << register_ns(ns) << tag << show_attributes << "/>"
end

#register_ns(ns) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 26

def register_ns(ns)
  if (0 == ns.length) then
    return ""
  end

  prefix = ns_to_prefix[ns]
  if (nil == prefix) then
    preferred = XamplObject.lookup_preferred_ns_prefix(ns)
    prefix = "" << preferred << ":" if preferred
    prefix = "ns" << ns_to_prefix.size.to_s << ":" unless prefix
    ns_to_prefix[ns] = prefix
  end
  return prefix
end

#show_attributes ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 91

def show_attributes
  if (nil == @attr_list) then
    return ""
  else
    result = @attr_list.join
    if (0 == result.length) then
      return ""
    else
      return result
    end
  end
end

#start_element(tag, ns, empty = false) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 114

def start_element(tag, ns, empty=false)
  if (empty) then
    @body << "<" << register_ns(ns) << tag << show_attributes << "/>"
  else
    @body << "<" << register_ns(ns) << tag << show_attributes << ">"
  end
end

#start_root_element(tag, ns, empty = false) ⇒ Object 



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# File 'lib/xamplr/to-xml.rb', line 104

def start_root_element(tag, ns, empty=false)
  if (empty) then
    @start_body << "<" << register_ns(ns) << tag << show_attributes
    @body = "/>"
  else
    @start_body << "<" << register_ns(ns) << tag << show_attributes
    @body = ">"
  end
end