Fix standard en_GB VAT numbers being generated with an incorrect digit length #970
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…er of digits Standard UK VAT numbers should be 9 digits. If the Modulus 97 block of a UK VAT number has a leading 0, this zero gets thrown out when sprintf casts this block from a string (%s) to an int (%d) during formatting. For example, a check block of "07" would end up like: GB216 5727 7 but it should be: GB216 5727 07
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What is the reason for this PR?
Standard UK VAT numbers should be 9 digits.
If the Modulus 97 block of a UK VAT number has a leading 0, this zero gets thrown out when sprintf casts this block from a string (%s) to an int (%d) during formatting.
For example, a check block of "07" would end up like:
GB216 5727 7but it should be:
GB216 5727 07Author's checklist
Summary of changes
Change
sprintffrom using%dto%sso that zero-padded strings are not truncated when casting to integers, to preserve leading zeroes and retain a digit length of 9 for standard VAT numbers.Review checklist
CHANGELOG.md