django1/django/conf/admin_media/js/urlify.js

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function URLify(s, num_chars) {
// changes, e.g., "Petty theft" to "petty_theft"
// remove all these words from the string before urlifying
removelist = ["a", "an", "as", "at", "before", "but", "by", "for", "from",
"is", "in", "into", "like", "of", "off", "on", "onto", "per",
"since", "than", "the", "this", "that", "to", "up", "via",
"with"];
r = new RegExp('\\b(' + removelist.join('|') + ')\\b', 'gi');
s = s.replace(r, '');
s = s.replace(/[^\w\s]/g, ''); // remove unneeded chars
s = s.replace(/^\s+|\s+$/g, ''); // trim leading/trailing spaces
s = s.replace(/\s+/g, '_'); // convert spaces to underscores
s = s.toLowerCase(); // convert to lowercase
return s.substring(0, num_chars);// trim to first num_chars chars
}