ISBN13 check digit: Difference between revisions
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Langurmonkey (talk | contribs) (for clarity, replaced ISBN for opCode with ISBN for Python Interviews (which I have no vested interest in)) |
Langurmonkey (talk | contribs) |
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<syntaxhighlight lang="langur">val .isbn13checkdigit = f(var .s) { |
<syntaxhighlight lang="langur">val .isbn13checkdigit = f(var .s) { |
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.s = replace(.s, RE/[\- ]/) |
.s = replace(.s, RE/[\- ]/) |
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.s -> re/^[0-9]{13}$/ and |
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fold(f{+}, map [_, f{x 3}], s2n .s) div 10 |
fold(f{+}, map [_, f{x 3}], s2n .s) div 10 |
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} |
} |
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