Class: X12::Parser

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

Defined Under Namespace

Classes: EdiItem

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/x12/parser.rb', line 41

def initialize
  @line_count = 0
  @current_level = nil
  @track_level = nil
  @element_separator = nil
  @segment_separator = nil

  @cf = nil
  @segment_list = nil

  @array_of_handles = []

  @last_read_segment = nil
  @last_read_loop = nil
end

Instance Attribute Details

#array_of_handles ⇒ Object

Returns the value of attribute array_of_handles.



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# File 'lib/x12/parser.rb', line 36

def array_of_handles
  @array_of_handles
end

#cf ⇒ Object

Returns the value of attribute cf.



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# File 'lib/x12/parser.rb', line 32

def cf
  @cf
end

#current_level ⇒ Object

Returns the value of attribute current_level.



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# File 'lib/x12/parser.rb', line 27

def current_level
  @current_level
end

#element_separator ⇒ Object

Returns the value of attribute element_separator.



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# File 'lib/x12/parser.rb', line 30

def element_separator
  @element_separator
end

#file_handle ⇒ Object

Returns the value of attribute file_handle.



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# File 'lib/x12/parser.rb', line 35

def file_handle
  @file_handle
end

#last_read_loop ⇒ Object

Returns the value of attribute last_read_loop.



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# File 'lib/x12/parser.rb', line 39

def last_read_loop
  @last_read_loop
end

#last_read_segment ⇒ Object

Returns the value of attribute last_read_segment.



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# File 'lib/x12/parser.rb', line 38

def last_read_segment
  @last_read_segment
end

#line_count ⇒ Object

Returns the value of attribute line_count.



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# File 'lib/x12/parser.rb', line 26

def line_count
  @line_count
end

#segment_list ⇒ Object

Returns the value of attribute segment_list.



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# File 'lib/x12/parser.rb', line 33

def segment_list
  @segment_list
end

#segment_separator ⇒ Object

Returns the value of attribute segment_separator.



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# File 'lib/x12/parser.rb', line 29

def segment_separator
  @segment_separator
end

#track_level ⇒ Object

Returns the value of attribute track_level.



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# File 'lib/x12/parser.rb', line 28

def track_level
  @track_level
end

Instance Method Details

#_parse_loop ⇒ Object 



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# File 'lib/x12/parser.rb', line 197

def _parse_loop
  segment = nil
  segment_list = nil
  xloop = []

  if @last_read_segment != nil
    xloop.push(@last_read_segment)
    @last_read_segment = nil
  end

  @segment_list[@line_count..-1].each do |segment|

    @line_count += 1

    segment_list = segment.split(@element_separator)
    @last_read_segment = segment_list

    @array_of_handles.each do |level_handle|
      level_handle.each do |tree_index|

        tmp_loop = @cf.loop_trees[tree_index].loop
        left = @cf.segmentstart[tmp_loop][0].split(':')

        if left[0] == segment_list[0]

          if left[2] == ''
            @last_read_loop = @cf.loop_trees[tree_index].loop
            @current_level = @cf.loop_trees[tree_index].level
            diff = @track_level - @cf.loop_trees[tree_index].level
            @track_level = @cf.loop_trees[tree_index].level

            while diff > 0
              @array_of_handles.shift
              diff -= 1
            end

            next_level = @cf.get_next_level(tree_index)
            if 'END' != next_level[0]
              @track_level += 1
              @array_of_handles.unshift(next_level)
              return xloop
            end

            return xloop

          else
            qual = left[2].split(',')

            if qual.include?(segment_list[left[1].to_i])

              @last_read_loop = @cf.loop_trees[tree_index].loop
              @current_level = @cf.loop_trees[tree_index].level
              diff = @track_level - @cf.loop_trees[tree_index].level
              @track_level = @cf.loop_trees[tree_index].level

              while diff > 0
                @array_of_handles.shift
                diff -=1
              end

              next_level = @cf.get_next_level(tree_index)
              if 'END' != next_level[0]
                @track_level += 1
                @array_of_handles.unshift(next_level)
                return xloop
              end
              return xloop
            end # if qual.include?
          end #  if left[2] == ''
        end # if left[0] == segment_list[0]
      end # level.handle.each
    end # @array_of_handles.each
    xloop.push(segment_list)
  end # @segment_list[@line_count..-1].each
  return xloop
end

#_parse_loop_start ⇒ Object 



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# File 'lib/x12/parser.rb', line 122

def _parse_loop_start

  current_loop = nil
  segment = nil
  segment_list = nil

  if @last_read_loop != nil
    tmp = @last_read_loop
    @last_read_loop = nil
    return tmp
  end

  @segment_list[@line_count..-1].each do |segment|

    @line_count += 1
    segment_list = segment.split(@element_separator)

    @last_read_segment = segment_list

    @array_of_handles.each do |level_handle|
      level_handle.each do |tree_index|

        xloop = @cf.loop_trees[tree_index].loop

        left = @cf.segmentstart[xloop][0].split(':')

        if left[0] == segment_list[0]
          if left[2] == ''
            current_loop = @cf.loop_trees[tree_index].loop
            @current_level = @cf.loop_trees[tree_index].level
            diff = @track_level - @cf.loop_trees[tree_index].level
            @track_level = @cf.loop_trees[tree_index].level

            while diff > 0
              @array_of_handles.shift
              diff -= 1
            end

            next_level = @cf.get_next_level(tree_index)
            if 'END' != next_level[0]
              @track_level += 1
              @array_of_handles.unshift(next_level)
              return current_loop
            end
            return current_loop

          else

            qual = left[2].split(',')
            if qual.include?(segment_list[left[1].to_i])
              current_loop = @cf.loop_trees[tree_index].loop
              @current_level = @cf.loop_trees[tree_index].level
              diff = @track_level - @cf.loop_trees[tree_index].level
              @track_level = @cf.loop_trees[tree_index].level

              while diff > 0
                @array_of_handles.shift
                diff -=1
              end

              next_level = @cf.get_next_level(tree_index)
              if 'END' != next_level[0]
                @track_level += 1
                @array_of_handles.unshift(next_level)
                return current_loop;
              end
              return current_loop
            end
          end
        end
      end
    end
  end
end

#_set_separators(file_contents) ⇒ Object 



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# File 'lib/x12/parser.rb', line 108

def _set_separators(file_contents)
  isa = nil

  begin
    isa = file_contents[0, 106]

    @segment_separator = isa[105].chr
    @element_separator = isa[3].chr
  rescue
    nil
  end

end

#get_edi_type(file) ⇒ Object 



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# File 'lib/x12/parser.rb', line 57

def get_edi_type(file)

  file_contents = nil

  File.open(file, 'r') do |file|
    file_contents = file.read
    file_contents = file_contents.strip
  end

  self._set_separators(file_contents)
  @segment_list = file_contents.split(@segment_separator)
  @segment_list.each do |segment|

    elements = segment.split(@element_separator)

    if elements[0] == 'ST'
      return elements[1]
    end 
  end

  return nil

end

#get_loop_segments ⇒ Object 



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# File 'lib/x12/parser.rb', line 311

def get_loop_segments
  xloop = []

  xloop = self._parse_loop

  [ @line_count, xloop ]

end

#get_next_loop ⇒ Object 



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# File 'lib/x12/parser.rb', line 274

def get_next_loop

  xloop = nil

  xloop = self._parse_loop_start

  if 'IEA' == xloop
    #self._set_separator
  end

  return false if not xloop or xloop.size == 0

  return xloop
end

#get_next_pos_level_loop ⇒ Object 



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# File 'lib/x12/parser.rb', line 300

def get_next_pos_level_loop
  loop = []

  loop = self._parse_loop_start

  return false if not loop or loop.size == 0

  return [ @line_count, @current_level, loop ]

end

#get_next_pos_loop ⇒ Object 



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# File 'lib/x12/parser.rb', line 289

def get_next_pos_loop
  loop = []

  loop = self._parse_loop_start

  return false if not loop or loop.size == 0

  [ @line_count, loop ]

end

#parse(options = {}) ⇒ Object 



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# File 'lib/x12/parser.rb', line 81

def parse(options = {})
  file = options[:file]
  conf = options[:conf]

  @cf = X12::CF.new
  @cf.load(conf) if conf

  p conf

  @track_level = 1
  level_one = @cf.get_level_one

  @array_of_handles.unshift(level_one)

  file_contents = nil
  File.open(file, 'r') do |file|
    file_contents = file.read
    file_contents = file_contents.strip
  end

  self._set_separators(file_contents)
  @segment_list = file_contents.split(@segment_separator)

  file_contents

end

#print_tree ⇒ Object 



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# File 'lib/x12/parser.rb', line 320

def print_tree

  pad = nil
  index = nil
  segment = nil

  while line = self.get_next_pos_level_loop

    pos = line[0].to_i
    level = line[1].to_i
    loop = line[2]

    if level != 0
      pad = '  |' * level
      print "       #{pad}-- #{loop}\n"
      tmp_level = level + 1
      tmp_pad = '  |' * tmp_level
      tmp_loop = self.get_loop_segments

      tmp_loop.each do |segment|
        index = sprintf("%+7s", pos)
        pos = pos += 1
        print "#{index}#{tmp_pad}-- #{segment}\n"
      end
    end
  end
end