Class: LadderConverter::Mel2Kv

Inherits:
Object
  • Object
show all
Defined in:
lib/ladder_converter/mel2kv.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Mel2Kv

Returns a new instance of Mel2Kv.



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# File 'lib/ladder_converter/mel2kv.rb', line 14

def initialize options={}
  @src = options[:src]
  @dst = options[:dst]
  @logging_file = options[:logging_file]
  @ignore_unknown = options[:ignore_unknown]
  @codes = nil
end

Instance Attribute Details

#codes ⇒ Object (readonly)

Returns the value of attribute codes.



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# File 'lib/ladder_converter/mel2kv.rb', line 7

def codes
  @codes
end

#converted ⇒ Object (readonly)

Returns the value of attribute converted.



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# File 'lib/ladder_converter/mel2kv.rb', line 8

def converted
  @converted
end

#dst ⇒ Object (readonly)

Returns the value of attribute dst.



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# File 'lib/ladder_converter/mel2kv.rb', line 9

def dst
  @dst
end

#ignore_unknown ⇒ Object (readonly)

Returns the value of attribute ignore_unknown.



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# File 'lib/ladder_converter/mel2kv.rb', line 12

def ignore_unknown
  @ignore_unknown
end

#logging_file ⇒ Object (readonly)

Returns the value of attribute logging_file.



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# File 'lib/ladder_converter/mel2kv.rb', line 10

def logging_file
  @logging_file
end

#src ⇒ Object (readonly)

Returns the value of attribute src.



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# File 'lib/ladder_converter/mel2kv.rb', line 9

def src
  @src
end

Instance Method Details

#convert ⇒ Object 



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# File 'lib/ladder_converter/mel2kv.rb', line 60

def convert
  load
  @converted = <<EOS
DEVICE:132
;MODULE:Main
;MODULE_TYPE:0
EOS
  # collect subrouten labels
  sb_labels = codes.select{|c| c.mnemonic == "CALL"}.map{|c| c.devices.first}
  # replace mnemonic LABLE to SBN if it's for subroutin.
  codes.select{|c| c.mnemonic == "LABEL" && sb_labels.include?(c.device)}.each{|c| c.becone_subroutin_label }

  # add kv codes string
  @converted += codes.map(&:to_s).join("\n")
  @converted += "\nENDH\n"
end

#load ⇒ Object 



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# File 'lib/ladder_converter/mel2kv.rb', line 22

def load
  return false unless File.exist? @src
  return true if @codes

  begin
    logfile = File.open(logging_file, "w") rescue nil

    @codes = []
    has_end = false
    CSV.open(@src, "rb:BOM|UTF-16:UTF-8", headers:true, skip_lines:Regexp.new(/^[^\t]+$|PC情報:/), col_sep:"\t").each_with_index do |row, i|
      begin
        mnemonic = row["命令"]
        device = row["I/O(デバイス)"]
        case mnemonic
        when 'NOP'
          # Skip
        when ""
          @codes.last.add_device device
        when 'END', 'FEND'
          unless has_end
            @codes << KvCode.new(mnemonic, [device])
            has_end = true
          end
        else
          @codes << KvCode.new(mnemonic, [device])
        end
      rescue UnknownCodeError => e
        mes = "[WARN] SKIPPED! : line #{i+(3+1)} : #{e}"
        STDERR.puts mes
        logfile.puts mes if logfile
        raise unless ignore_unknown
      end
    end
  ensure
    logfile.close if logfile
  end
end

#save ⇒ Object 



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# File 'lib/ladder_converter/mel2kv.rb', line 77

def save
  return unless dst
  convert
  File.write dst, converted
end