IBAN: Difference between revisions
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ClassMethod Mod( |
ClassMethod Mod(pNum As %Integer, pDiv As %Integer) As %Integer [ Internal, Private ] |
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{ |
{ |
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If $Length( |
If $Length(pNum)<9 Quit pNum#pDiv |
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Set res=0 |
Set res=0 |
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For i=1:1:$Length( |
For i=1:1:$Length(pNum)\7+1 { |
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Set res=(res_$Extract( |
Set res=(res_$Extract(pNum, 1, 7))#pDiv |
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Set |
Set pNum=$Extract(pNum, 8, *) |
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} |
} |
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Quit res |
Quit res |
Revision as of 13:27, 31 March 2013
This page uses content from Wikipedia. The original article was at IBAN. The list of authors can be seen in the page history. As with Rosetta Code, the text of Wikipedia is available under the GNU FDL. (See links for details on variance) |
The International Bank Account Number (IBAN) is an internationally agreed means of identifying bank accounts across national borders with a reduced risk of propagating transcription errors. The IBAN consists of up to 34 alphanumeric characters: first the two-letter ISO 3166-1 alpha-2 country code, then two check digits, and finally a country-specific Basic Bank Account Number (BBAN). The check digits enable a sanity check of the bank account number to confirm its integrity even before submitting a transaction.
The task here is to validate the following fictitious IBAN: GB82 WEST 1234 5698 7654 32. Details of the algorithm can be found on the Wikipedia page.
Caché ObjectScript
<lang cache>Class Utils.Validate [ Abstract ] {
ClassMethod IBAN(pIBAN As %String = "") As %Boolean { If pIBAN=..IBANGenerate(pIBAN) Quit 1 Quit 0 }
ClassMethod IBANGenerate(pIBAN As %String = "") As %String { Set pIBAN=$ZConvert(pIBAN, "U") Set cc=$Extract(pIBAN, 1, 2) Set cd=$Extract(pIBAN, 3, 4) Set bban=$Extract(pIBAN, 5, *) Set str="", alt=$ZStrip(bban_cc_"00", "*E'U'N") For i=1:1:$Length(alt) { Set chr=$Extract(alt, i) If chr?1U Set chr=$ASCII(chr)-55 Set str=str_chr } Set cd=98-..Mod(str, 97) Set cd=$Translate($Justify(cd, 2), " ", 0) Quit cc_cd_bban }
ClassMethod Mod(pNum As %Integer, pDiv As %Integer) As %Integer [ Internal, Private ] { If $Length(pNum)<9 Quit pNum#pDiv Set res=0 For i=1:1:$Length(pNum)\7+1 { Set res=(res_$Extract(pNum, 1, 7))#pDiv Set pNum=$Extract(pNum, 8, *) } Quit res }
}</lang>
- Examples:
USER>Write ##class(Utils.Validate).IBAN("GB82 WEST 1234 5698 7654 32") 1 USER>Write ##class(Utils.Validate).IBAN("GB00 WEST 1234 5698 7654 32") 0