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Cleanup ISBNs when importing from web/search translators

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Validate, convert to ISBN-13, and list in a space-separated format
This commit is contained in:
Aurimas Vinckevicius 2015-02-08 17:21:11 -06:00
parent 395d596105
commit 7f52e00341
2 changed files with 54 additions and 0 deletions
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26
chrome/content/zotero/xpcom/translation/translate.js
View file

@ -616,6 +616,32 @@ Zotero.Translate.Sandbox = {
if(setShortTitle) item.shortTitle = title;
}
/* Clean up ISBNs
* Allow multiple ISBNs, but...
* (1) validate all ISBNs
* (2) convert all ISBNs to ISBN-13
* (3) remove any duplicates
* (4) separate them with space
*/
if (item.ISBN) {
// Match ISBNs with groups separated by various dashes or even spaces
var isbnRe = /\b(?:97[89][\s\x2D\xAD\u2010-\u2015\u2043\u2212]*)?(?:\d[\s\x2D\xAD\u2010-\u2015\u2043\u2212]*){9}[\dx](?![\x2D\xAD\u2010-\u2015\u2043\u2212])\b/gi,
validISBNs = [],
isbn;
while (isbn = isbnRe.exec(item.ISBN)) {
var validISBN = Zotero.Utilities.cleanISBN(isbn[0]);
if (!validISBN) {
// Back up and move up one character
isbnRe.lastIndex = isbn.index + 1;
continue;
}
var isbn13 = Zotero.Utilities.toISBN13(validISBN);
if (validISBNs.indexOf(isbn13) == -1) validISBNs.push(isbn13);
}
item.ISBN = validISBNs.join(' ');
}
// refuse to save very long tags
if(item.tags) {
for(var i=0; i<item.tags.length; i++) {

28
chrome/content/zotero/xpcom/utilities.js
View file

@ -310,6 +310,34 @@ Zotero.Utilities = {
return false;
},
/*
* Convert ISBN 10 to ISBN 13
* @param {String} isbn ISBN 10 or ISBN 13
* cleanISBN
* @return {String} ISBN-13
*/
"toISBN13": function(isbn) {
if (!/^(?:97[89])?\d{9}[\dxX]$/.test(isbn)
&& !(isbn = Zotero.Utilities.cleanISBN(isbn))
) {
throw new Error('Invalid ISBN: ' + isbn);
}
if (isbn.length == 13) return isbn; // Recalculate check digit?
isbn = '978' + isbn.substr(0,9);
var sum = 0;
for (var i = 0; i < 12; i++) {
sum += isbn[i] * (i%2 ? 3 : 1);
}
var checkDigit = 10 - (sum % 10);
if (checkDigit == 10) checkDigit = 0;
return isbn + checkDigit;
},
/**
* Clean and validate ISSN.