cusip.rb in sec_id-4.0.0

- old
+ new

@@ -6,11 +6,11 @@
     ID_REGEX = /\A
       (?<identifier>
         (?<cusip6>[A-Z0-9]{5}[A-Z0-9*@#])
         (?<issue>[A-Z0-9*@#]{2}))
       (?<check_digit>\d)?
-    \z/x.freeze
+    \z/x
 
     attr_reader :cusip6, :issue
 
     def initialize(cusip)
       cusip_parts = parse cusip
@@ -19,11 +19,11 @@
       @issue = cusip_parts[:issue]
       @check_digit = cusip_parts[:check_digit]&.to_i
     end
 
     def calculate_check_digit
-      return mod_10(modified_luhn_sum) if valid_format?
+      return mod10(modified_luhn_sum) if valid_format?
 
       raise InvalidFormatError, "CUSIP '#{full_number}' is invalid and check-digit cannot be calculated!"
     end
 
     private
@@ -32,10 +32,10 @@
     def modified_luhn_sum
       sum = 0
 
       id_digits.reverse.each_slice(2) do |even, odd|
         double_even = (even || 0) * 2
-        sum += div_10_mod_10(double_even) + div_10_mod_10(odd || 0)
+        sum += div10mod10(double_even) + div10mod10(odd || 0)
       end
 
       sum
     end
 