08-Jan-2022 10:50:23

upc_test():
  MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 2
  upc() works with Uniform Price Codes.

CH_IS_DIGIT_TEST
  CH_IS_DIGIT is TRUE if a character represents a digit.

   C      CH_IS_DIGIT(C)

  "0"            1
  "1"            1
  "2"            1
  "3"            1
  "4"            1
  "5"            1
  "6"            1
  "7"            1
  "8"            1
  "9"            1
  "X"            0
  "?"            0
  " "            0

CH_TO_DIGIT_TEST
  CH_TO_DIGIT: character -> decimal digit

         1  "0"         0
         2  "1"         1
         3  "2"         2
         4  "3"         3
         5  "4"         4
         6  "5"         5
         7  "6"         6
         8  "7"         7
         9  "8"         8
        10  "9"         9
        11  "X"        -1
        12  "?"        -1
        13  " "        -1

S_TO_DIGITS_TEST
  S_TO_DIGITS: string -> digit vector

  Test string: "34E94-70.6"

  Extracted 5 digits:

     1:      3
     2:      4
     3:      9
     4:      4
     5:      7

  Test string: "34E94-70.6"

  Extracted 7 digits:

     1:      3
     2:      4
     3:      9
     4:      4
     5:      7
     6:      0
     7:      6

UPC_CHECK_DIGIT_CALCULATE_TEST
  UPC_CHECK_DIGIT_CALCULATE calculates the 12-th digit
  (the check digit) of a UPC.

  Check digit of "6-39382-00039-3" is 3, expecting 3
  Check digit of "0 43000 18170" is 6, expecting 6
  Check digit of "30074660601" is 7, expecting 7
  Check digit of "24689753124" is 5, expecting 5
  Check digit of "13579864213" is 9, expecting 9

UPC_IS_VALID_TEST
  UPC_IS_VALID reports whether a UPC is valid.

  Validity of "6-39382-00039-3" is 1, expecting 1
  Validity of "6-39352-00039-3" is 0, expecting 0
  Validity of "0 43000 18170 6" is 1, expecting 1
  Validity of "0 43000 18170 9" is 0, expecting 0

upc_test():
  Normal end of execution.

08-Jan-2022 10:50:23