Class: Stupidedi::Parser::InterchangeState

Inherits:
AbstractState show all
Defined in:
lib/stupidedi/parser/states/interchange_state.rb

Instance Attribute Summary collapse

Constructors collapse

Instance Method Summary collapse

Methods inherited from AbstractState

interleaved_sequence, #leaf?, lsequence, mkcomposite, mkelement, mkrepeated, mksegment, mksimple, #pretty_print, sequence, tsequence

Methods included from Inspect

#inspect

Constructor Details

#initialize(separators, segment_dict, instructions, zipper, children) ⇒ InterchangeState

Returns a new instance of InterchangeState.



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 22

def initialize(separators, segment_dict, instructions, zipper, children)
  @separators, @segment_dict, @instructions, @zipper, @children =
    separators, segment_dict, instructions, zipper, children
end

Instance Attribute Details

#children ⇒ Array<AbstractState> (readonly)

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 20

def children
  @children
end

#instructions ⇒ InstructionTable (readonly)

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 14

def instructions
  @instructions
end

#segment_dict ⇒ Reader::SegmentDict (readonly)

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 11

def segment_dict
  @segment_dict
end

#separators ⇒ Reader::Separators (readonly)

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 8

def separators
  @separators
end

#zipper ⇒ Zipper::AbstractCursor (readonly)

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 17

def zipper
  @zipper
end

Class Method Details

.push(zipper, parent, segment_tok, segment_use, config) ⇒ Zipper::AbstractCursor

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 43

def push(zipper, parent, segment_tok, segment_use, config)
  # ISA12: Interchange Control Version Number
  version = segment_tok.element_toks.at(11).try(:value)

  unless config.interchange.defined_at?(version)
    reason =
      if config.interchange.empty?
        Stupidedi::Exceptions::MissingGrammarError::DEFAULT_MESSAGE
      else
        "unknown interchange version #{version.inspect}"
      end

    return FailureState.push(zipper, parent, segment_tok, reason)
  end

  # Construct a SegmentVal and InterchangeVal around it
  envelope_def = config.interchange.at(version)
  envelope_val = envelope_def.empty(parent.separators)
  segment_use  = envelope_def.entry_segment_use
  segment_val  = mksegment(segment_tok, segment_use)

  separators =
    parent.separators.merge(envelope_def.separators(segment_val))

  zipper.append_child new(
    separators,
    parent.segment_dict.push(envelope_val.segment_dict),
    parent.instructions.push(instructions(envelope_def)),
    parent.zipper.append(envelope_val).append_child(segment_val),
    [])
end

Instance Method Details

#copy(changes = {}) ⇒ InterchangeState

Returns:



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# File 'lib/stupidedi/parser/states/interchange_state.rb', line 28

def copy(changes = {})
  InterchangeState.new \
    changes.fetch(:separators, @separators),
    changes.fetch(:segment_dict, @segment_dict),
    changes.fetch(:instructions, @instructions),
    changes.fetch(:zipper, @zipper),
    changes.fetch(:children, @children)
end