module Sjekksum::Primitive
Module for calculation and validation of Primitive
checksums
The primitive checksum is just a reduced digit sum (modulo 9).
Public Instance Methods
convert(number)
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Transforms a number by appending the Primitive
checksum digit
@example
Sjekksum::Primitive.convert(232323) #=> 2323236
@param number [Integer, String] number without a checksum
@return [Integer, String] final number including the checksum
# File lib/sjekksum/primitive.rb, line 51 def convert number raise_on_type_mismatch number typed_conversion number end
Also aliased as: transform
of(number)
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Calculates Primitive
checksum
@example
Sjekksum::Primitive.of(232323) #=> 6
@param number [Integer, String] number for which the checksum should be calculated
@return [Integer] calculated checksum
# File lib/sjekksum/primitive.rb, line 20 def of number raise_on_type_mismatch number convert_to_int(number) % 9 end
Also aliased as: checksum
valid?(number)
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Primitive
validation of provided number
@example
Sjekksum::Primitive.valid?(232323) #=> true
@param number [Integer, String] number with included checksum
@return [Boolean]
# File lib/sjekksum/primitive.rb, line 35 def valid? number raise_on_type_mismatch number num, check = split_number(number) self.of(num) == check end
Also aliased as: is_valid?