MediaWiki:ListrefErrors.js

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// adapted from User:Ucucha/HarvErrors.js
if(window.checkLinksToCitations === undefined)
    window.checkLinksToCitations = true;

jQuery(document).ready(function($) {
    // first check: do links in listref templates citations point to a valid citation?
    links = document.links;
    for (i=0; i < links.length; i++)
    {
        href = links[i].getAttribute('href');
        if (href.indexOf('#cite_note-listref') == 0)
            if (document.getElementById(href.substring(1)) == null)
                links[i].parentNode.innerHTML +=
                    " <strong class=error>Listref error: link " +
                    href +
                    " doesn't point to any matching citation.</strong>";
    }

    // second check: do endnote IDs have citations pointing to them?
    if(window.checkLinksToCitations) {
        cites = jQuery('.citation');
        for(i=0; i < cites.length; i++) {
            id = cites[i].getAttribute('id');
            // we only need to check citations with a
            if(!id || id.indexOf('cite_note-listref') !== 0)
                continue;
            // don't do cites that are inside a ref
            parentid = cites[i].parentNode.getAttribute('id');
            if(parentid && parentid.indexOf('cite_note') === 0)
                continue;
            // check for links to this citation
            query = 'a[href|="#' + id + '"]';
            if(jQuery(query).length == 0) {
                cites[i].innerHTML +=
                    " <strong class=error>Listref error: There is no link pointing to this citation.</strong>";
            }
        }
    }
});