Class: X12::Loop

Inherits:
Base
  • Object
show all
Defined in:
lib/x12/loop.rb

Overview

Implements nested loops of segments

Instance Attribute Summary

Attributes inherited from Base

#composite_separator, #field_separator, #name, #next_repeat, #nodes, #parsed_str, #repeats, #segment_separator

Instance Method Summary collapse

Methods inherited from Base

#[], #do_repeats, #dup, #find, #has_content?, #initialize, #method_missing, #parse, #repeat, #set_empty!, #show, #size, #to_a, #to_s, #with

Constructor Details

This class inherits a constructor from X12::Base

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class X12::Base

Instance Method Details

#each ⇒ Object

Provides looping through repeats of a message



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# File 'lib/x12/loop.rb', line 88

def each
  res = self.to_a
  0.upto(res.length - 1) do |x|
    yield res[x]
  end
end

#inspect ⇒ Object

Formats a printable string containing the loops element’s content added to provide compatability with ruby > 2.0.0



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# File 'lib/x12/loop.rb', line 82

def inspect
  "#{self.class.to_s.sub(/^.*::/, '')} (#{name}) #{repeats} =<#{parsed_str}, #{next_repeat.inspect}> ".gsub(/\\*\"/, '"')
end

#parse_helper(str, yield_loop_name, block) ⇒ Object

Parse a string and fill out internal structures with the pieces of it. Returns an unparsed portion of the string or the original string if nothing was parsed out.



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# File 'lib/x12/loop.rb', line 46

def parse_helper(str, yield_loop_name, block)
  # puts "#{$count}: parse for #{name}" if name == yield_loop_name

  $count ||=0
  # $count+=1 if name == yield_loop_name

  # return nil if name == yield_loop_name && (($count+=1) > 2)

  #puts "Parsing loop #{name}: "+str

  current_location = str
  nodes.each{|node|
    match_location = node.parse(current_location, yield_loop_name, block)
    current_location = match_location if match_location
  } 
  if str == current_location
    return nil
  else
    self.parsed_str = str[0..-current_location.length-1]
    block.call(self) if yield_loop_name && name == yield_loop_name
    return current_location
  end
end

#render ⇒ Object

Render all components of this loop as string suitable for EDI



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# File 'lib/x12/loop.rb', line 67

def render
  if self.has_content?
    self.to_a.inject(''){|loop_str, i|
      loop_str += i.nodes.inject(''){|nodes_str, j|
        nodes_str += j.render
      } 
    }
  else
    ''
  end
end