Class: Barby::Code93
- Defined in:
- lib/barby/barcode/code_93.rb
Constant Summary collapse
- SHIFT_DOLLAR =
($)
"\301"
- SHIFT_PERCENT =
(%)
"\302"
- SHIFT_SLASH =
(/)
"\303"
- SHIFT_PLUS =
(+)
"\304"
- SHIFT_CHARACTERS =
[SHIFT_DOLLAR, SHIFT_PERCENT, SHIFT_SLASH, SHIFT_PLUS]
- ENCODINGS =
{ "0" => "100010100", "1" => "101001000", "2" => "101000100", "3" => "101000010", "4" => "100101000", "5" => "100100100", "6" => "100100010", "7" => "101010000", "8" => "100010010", "9" => "100001010", "A" => "110101000", "B" => "110100100", "C" => "110100010", "D" => "110010100", "E" => "110010010", "F" => "110001010", "G" => "101101000", "H" => "101100100", "I" => "101100010", "J" => "100110100", "K" => "100011010", "L" => "101011000", "M" => "101001100", "N" => "101000110", "O" => "100101100", "P" => "100010110", "Q" => "110110100", "R" => "110110010", "S" => "110101100", "T" => "110100110", "U" => "110010110", "V" => "110011010", "W" => "101101100", "X" => "101100110", "Y" => "100110110", "Z" => "100111010", "-" => "100101110", "." => "111010100", " " => "111010010", "$" => "111001010", "/" => "101101110", "+" => "101110110", "%" => "110101110", SHIFT_DOLLAR => "100100110", SHIFT_PERCENT => "111011010", SHIFT_SLASH => "111010110", SHIFT_PLUS => "100110010" }
- EXTENDED_MAPPING =
{ "\000" => "\302U", " " => " ", "@" => "\302V", "`" => "\302W", "\001" => "\301A", "!" => "\303A", "A" => "A", "a" => "\304A", "\002" => "\301B", '"' => "\303B", "B" => "B", "b" => "\304B", "\003" => "\301C", "#" => "\303C", "C" => "C", "c" => "\304C", "\004" => "\301D", "$" => "\303D", "D" => "D", "d" => "\304D", "\005" => "\301E", "%" => "\303E", "E" => "E", "e" => "\304E", "\006" => "\301F", "&" => "\303F", "F" => "F", "f" => "\304F", "\007" => "\301G", "'" => "\303G", "G" => "G", "g" => "\304G", "\010" => "\301H", "(" => "\303H", "H" => "H", "h" => "\304H", "\011" => "\301I", ")" => "\303I", "I" => "I", "i" => "\304I", "\012" => "\301J", "*" => "\303J", "J" => "J", "j" => "\304J", "\013" => "\301K", "/" => "\303K", "K" => "K", "k" => "\304K", "\014" => "\301L", "," => "\303L", "L" => "L", "l" => "\304L", "\015" => "\301M", "-" => "-", "M" => "M", "m" => "\304M", "\016" => "\301N", "." => ".", "N" => "N", "n" => "\304N", "\017" => "\301O", "+" => "\303O", "O" => "O", "o" => "\304O", "\020" => "\301P", "0" => "0", "P" => "P", "p" => "\304P", "\021" => "\301Q", "1" => "1", "Q" => "Q", "q" => "\304Q", "\022" => "\301R", "2" => "2", "R" => "R", "r" => "\304R", "\023" => "\301S", "3" => "3", "S" => "S", "s" => "\304S", "\024" => "\301T", "4" => "4", "T" => "T", "t" => "\304T", "\025" => "\301U", "5" => "5", "U" => "U", "u" => "\304U", "\026" => "\301V", "6" => "6", "V" => "V", "v" => "\304V", "\027" => "\301W", "7" => "7", "W" => "W", "w" => "\304W", "\030" => "\301X", "8" => "8", "X" => "X", "x" => "\304X", "\031" => "\301Y", "9" => "9", "Y" => "Y", "y" => "\304Y", "\032" => "\301Z", ":" => "\303Z", "Z" => "Z", "z" => "\304Z", "\033" => "\302A", ";" => "\302F", "[" => "\302K", "{" => "\302P", "\034" => "\302B", "<" => "\302G", "\\" => "\302L", "|" => "\302Q", "\035" => "\302C", "=" => "\302H", "]" => "\302M", "}" => "\302R", "\036" => "\302D", ">" => "\302I", "^" => "\302N", "~" => "\302S", "\037" => "\302E", "?" => "\302J", "_" => "\302O", "\177" => "\302T" }
- EXTENDED_CHARACTERS =
EXTENDED_MAPPING.keys - ENCODINGS.keys
- CHARACTERS =
{ 0 => "0", 1 => "1", 2 => "2", 3 => "3", 4 => "4", 5 => "5", 6 => "6", 7 => "7", 8 => "8", 9 => "9", 10 => "A", 11 => "B", 12 => "C", 13 => "D", 14 => "E", 15 => "F", 16 => "G", 17 => "H", 18 => "I", 19 => "J", 20 => "K", 21 => "L", 22 => "M", 23 => "N", 24 => "O", 25 => "P", 26 => "Q", 27 => "R", 28 => "S", 29 => "T", 30 => "U", 31 => "V", 32 => "W", 33 => "X", 34 => "Y", 35 => "Z", 36 => "-", 37 => ".", 38 => " ", 39 => "$", 40 => "/", 41 => "+", 42 => "%", 43 => SHIFT_DOLLAR, 44 => SHIFT_PERCENT, 45 => SHIFT_SLASH, 46 => SHIFT_PLUS }
- VALUES =
CHARACTERS.invert
- START_ENCODING =
*
'101011110'
- STOP_ENCODING =
'101011110'
- TERMINATE_ENCODING =
'1'
Instance Attribute Summary collapse
-
#data ⇒ Object
Returns the value of attribute data.
Instance Method Summary collapse
-
#c_checksum ⇒ Object
Calculates the C checksum based on checksum_values.
- #c_checksum_character ⇒ Object
- #c_checksum_encoding ⇒ Object
- #characters ⇒ Object
- #checksum_characters ⇒ Object
- #checksum_encoding ⇒ Object
- #checksum_encodings ⇒ Object
-
#checksum_values ⇒ Object
Returns the values used for computing the C checksum in the “right” order (i.e. reversed).
-
#checksum_values_with_c_checksum ⇒ Object
Returns the normal checksum plus the c_checksum This is used for calculating the k_checksum.
- #checksums ⇒ Object
- #data_encoding ⇒ Object
- #data_encoding_with_checksums ⇒ Object
- #encoded_characters ⇒ Object (also: #character_encodings)
- #encoding ⇒ Object
- #extended? ⇒ Boolean
-
#initialize(data) ⇒ Code93
constructor
A new instance of Code93.
-
#k_checksum ⇒ Object
Calculates the K checksum based on checksum_values_with_c_checksum.
- #k_checksum_character ⇒ Object
- #k_checksum_encoding ⇒ Object
- #raw_characters ⇒ Object
- #start_encoding ⇒ Object
-
#stop_encoding ⇒ Object
The stop encoding includes the termination bar.
- #to_s ⇒ Object
- #valid? ⇒ Boolean
Methods inherited from Barcode
#method_missing, #outputter_class_for, #outputter_for, outputters, register_outputter, #two_dimensional?
Constructor Details
#initialize(data) ⇒ Code93
Returns a new instance of Code93.
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# File 'lib/barby/barcode/code_93.rb', line 106 def initialize(data) self.data = data end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class Barby::Barcode
Instance Attribute Details
#data ⇒ Object
Returns the value of attribute data.
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# File 'lib/barby/barcode/code_93.rb', line 103 def data @data end |
Instance Method Details
#c_checksum ⇒ Object
Calculates the C checksum based on checksum_values
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# File 'lib/barby/barcode/code_93.rb', line 184 def c_checksum sum = 0 checksum_values.each_with_index do |value, index| sum += ((index % 20) + 1) * value end sum % 47 end |
#c_checksum_character ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 192 def c_checksum_character CHARACTERS[c_checksum] end |
#c_checksum_encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 196 def c_checksum_encoding ENCODINGS[c_checksum_character] end |
#characters ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 120 def characters raw_characters.map{|c| EXTENDED_MAPPING[c].split(//) }.flatten end |
#checksum_characters ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 165 def checksum_characters checksums.map{|s| CHARACTERS[s] } end |
#checksum_encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 156 def checksum_encoding checksum_encodings.join end |
#checksum_encodings ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 152 def checksum_encodings checksum_characters.map{|c| ENCODINGS[c] } end |
#checksum_values ⇒ Object
Returns the values used for computing the C checksum in the “right” order (i.e. reversed)
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# File 'lib/barby/barcode/code_93.rb', line 172 def checksum_values characters.map{|c| VALUES[c] }.reverse end |
#checksum_values_with_c_checksum ⇒ Object
Returns the normal checksum plus the c_checksum This is used for calculating the k_checksum
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# File 'lib/barby/barcode/code_93.rb', line 178 def checksum_values_with_c_checksum [c_checksum] + checksum_values end |
#checksums ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 161 def checksums [c_checksum, k_checksum] end |
#data_encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 144 def data_encoding character_encodings.join end |
#data_encoding_with_checksums ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 148 def data_encoding_with_checksums (character_encodings + checksum_encodings).join end |
#encoded_characters ⇒ Object Also known as: character_encodings
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# File 'lib/barby/barcode/code_93.rb', line 124 def encoded_characters characters.map{|c| ENCODINGS[c] } end |
#encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 140 def encoding start_encoding+data_encoding_with_checksums+stop_encoding end |
#extended? ⇒ Boolean
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# File 'lib/barby/barcode/code_93.rb', line 111 def extended? raw_characters.any?{|c| EXTENDED_CHARACTERS.include?(c) } end |
#k_checksum ⇒ Object
Calculates the K checksum based on checksum_values_with_c_checksum
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# File 'lib/barby/barcode/code_93.rb', line 202 def k_checksum sum = 0 checksum_values_with_c_checksum.each_with_index do |value, index| sum += ((index % 15) + 1) * value end sum % 47 end |
#k_checksum_character ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 210 def k_checksum_character CHARACTERS[k_checksum] end |
#k_checksum_encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 214 def k_checksum_encoding ENCODINGS[k_checksum_character] end |
#raw_characters ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 116 def raw_characters data.split(//) end |
#start_encoding ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 130 def start_encoding START_ENCODING end |
#stop_encoding ⇒ Object
The stop encoding includes the termination bar
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# File 'lib/barby/barcode/code_93.rb', line 135 def stop_encoding STOP_ENCODING+TERMINATE_ENCODING end |
#to_s ⇒ Object
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# File 'lib/barby/barcode/code_93.rb', line 224 def to_s data end |
#valid? ⇒ Boolean
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# File 'lib/barby/barcode/code_93.rb', line 219 def valid? characters.all?{|c| ENCODINGS.include?(c) } end |