class RQRCodeCore::QRNumeric
Constants
- NUMBER_LENGTH
Public Class Methods
new(data)
click to toggle source
# File lib/rqrcode_core/qrcode/qr_numeric.rb, line 7 def initialize(data) raise QRCodeArgumentError, "Not a numeric string `#{data}`" unless QRNumeric.valid_data?(data) @data = data end
valid_data?(data)
click to toggle source
# File lib/rqrcode_core/qrcode/qr_numeric.rb, line 13 def self.valid_data?(data) (data.chars - NUMERIC).empty? end
Public Instance Methods
write(buffer)
click to toggle source
# File lib/rqrcode_core/qrcode/qr_numeric.rb, line 17 def write(buffer) buffer.numeric_encoding_start(@data.size) @data.size.times do |i| if i % 3 == 0 chars = @data[i, 3] bit_length = get_bit_length(chars.length) buffer.put(get_code(chars), bit_length) end end end
Private Instance Methods
get_bit_length(length)
click to toggle source
# File lib/rqrcode_core/qrcode/qr_numeric.rb, line 37 def get_bit_length(length) NUMBER_LENGTH[length] end
get_code(chars)
click to toggle source
# File lib/rqrcode_core/qrcode/qr_numeric.rb, line 41 def get_code(chars) chars.to_i end