function createIDList() {
        var doc = DocumentManager.getCurrentDocument();
        if (!doc) {
            return;
        }

        var idList = [];
        var docText = doc.getText();
        var lines = docText.split("\n");

        var regex = new RegExp(/\s+id\s*?=\s*?["'](.*?)["']/gi);
        var id, chFrom, chTo, i, line;
        for (i = 0; i < lines.length; i++) {
            line = lines[i];
            var info;
            while ((info = regex.exec(line)) !== null) {
                id = info[1];
                // TODO: this doesn't handle id's that share the
                // same portion of a name on the same line or when
                // the id and value are on different lines
                chFrom = line.indexOf(id);
                chTo = chFrom + id.length;
                idList.push(new FileLocation(null, i, chFrom, chTo, id));
            }
        }
        return idList;
    }
Returns a list of information about ID's for a single document. This array is populated
by createIDList()
@type {?Array.<FileLocation>}