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IBAN: Difference between revisions
Added COBOL solution.
(Added COBOL solution.) |
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(prn (valid-iban? "GB82 WEST 1234 5698 7654 32") ; true
(valid-iban? "GB82 TEST 1234 5698 7654 32")) ; false</lang>
=={{header|COBOL}}==
{{works with|OpenCOBOL}}
<lang cobol> IDENTIFICATION DIVISION.
PROGRAM-ID. iban-main.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 iban PIC X(50).
01 iban-flag PIC X.
88 is-valid VALUE "Y", FALSE "N".
PROCEDURE DIVISION.
main-line.
MOVE "GB82 WEST 1234 5698 7654 32" TO iban
PERFORM display-validity
MOVE "GB82 TEST 1234 5698 7654 32" TO iban
PERFORM display-validity
GOBACK
.
display-validity.
CALL "validate-iban" USING CONTENT iban, REFERENCE iban-flag
IF is-valid
DISPLAY FUNCTION TRIM(iban) " is valid."
ELSE
DISPLAY FUNCTION TRIM(iban) " is not valid."
END-IF
.
END PROGRAM iban-main.
IDENTIFICATION DIVISION.
PROGRAM-ID. validate-iban.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 country-lengths-area VALUE "AD24AE23AL28AT20AZ28BA20BE16"
& "BG22BH22BR29CH21CR21CY28CZ24DE22DK18DO28EE20ES24FI18FO18F"
& "R27GB22GE22GI23GL18GR27GT28HR21HU28IE22IL23IS26IT27KW30KZ"
& "20LB28LI21LT20LU20LV21MC27MD24ME22MK19MR27MT31MU30NL18NO1"
& "5PK24PL28PS29PT25RO24RS22SA24SE24SI19SK24SM27TN24TR26VG24"
.
03 country-lengths OCCURS 64 TIMES
INDEXED BY country-lengths-idx.
05 country-code PIC XX.
05 country-len PIC 99.
01 offset PIC 99.
01 i PIC 99.
01 len PIC 99.
LINKAGE SECTION.
01 iban PIC X(50).
01 valid-flag PIC X.
88 is-valid VALUE "Y", FALSE "N".
PROCEDURE DIVISION USING iban, valid-flag.
MOVE FUNCTION UPPER-CASE(iban) TO iban
CALL "remove-spaces" USING iban
*> Check if country-code and length are correct
INSPECT iban TALLYING len FOR CHARACTERS BEFORE SPACE
SET country-lengths-idx TO 1
SEARCH country-lengths
AT END
SET is-valid TO FALSE
GOBACK
WHEN country-code (country-lengths-idx) = iban (1:2)
IF country-len (country-lengths-idx) NOT = len
SET is-valid TO FALSE
GOBACK
END-IF
END-SEARCH
CALL "create-iban-number" USING CONTENT len, REFERENCE iban
*> Mod 97 number formed.
IF FUNCTION MOD(iban, 97) = 1
SET is-valid TO TRUE
ELSE
SET is-valid TO FALSE
END-IF
.
IDENTIFICATION DIVISION.
PROGRAM-ID. remove-spaces.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 i PIC 99.
01 offset PIC 99.
LINKAGE SECTION.
01 str PIC X(50).
PROCEDURE DIVISION USING str.
INITIALIZE offset
PERFORM VARYING i FROM 1 BY 1 UNTIL i > 50
EVALUATE TRUE
WHEN str (i:1) = SPACE
ADD 1 TO offset
WHEN offset NOT = ZERO
MOVE str (i:1) TO str (i - offset:1)
END-EVALUATE
END-PERFORM
MOVE SPACES TO str (50 - offset + 1:)
.
END PROGRAM remove-spaces.
IDENTIFICATION DIVISION.
PROGRAM-ID. create-iban-number.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 first-four PIC X(4).
01 iban-num PIC X(50).
01 digit-num PIC 99 VALUE 1.
01 i PIC 99.
01 letter-num PIC 99.
LINKAGE SECTION.
01 len PIC 99.
01 iban PIC X(50).
PROCEDURE DIVISION USING len, iban.
*> Move characters into final positions.
MOVE iban (1:4) TO first-four
MOVE iban (5:) TO iban
MOVE first-four TO iban (len - 3:)
*> Convert letters to numbers.
INITIALIZE iban-num, digit-num ALL TO VALUE
PERFORM VARYING i FROM 1 BY 1
UNTIL i > len OR iban (i:1) = SPACE
IF iban (i:1) IS NUMERIC
MOVE iban (i:1) TO iban-num (digit-num:1)
ADD 1 TO digit-num
ELSE
COMPUTE letter-num =
FUNCTION ORD(iban (i:1)) - FUNCTION ORD("A") + 10
MOVE letter-num TO iban-num (digit-num:2)
ADD 2 TO digit-num
END-IF
END-PERFORM
MOVE iban-num TO iban
.
END PROGRAM create-iban-number.
END PROGRAM validate-iban.</lang>
{{out}}
<pre>
GB82 WEST 1234 5698 7654 32 is valid.
GB82 TEST 1234 5698 7654 32 is not valid.
</pre>
=={{header|D}}==
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