mefi2book_index_array_bug_buildIndex

    /**
     * buildIndex
     *
     *  builds the Contributors Index
     * @memberof mefi2book
     *
     */
    function buildIndex() {
        var userNames = [], // an alphabetized array of all users in thread
            userIndex = {}; // a hash of usernames, where each one has an array of page #s where their comments are
        logger("Converting PDF to json");
        extractpdf(CACHE_DIR+mefiSubSite+'_metafilter_'+mefiThreadNumber+'_first_pass.pdf', function (err, pages) {
          if (err) {
            logger("PDF extract for Contributor Index erroring out");
            done(err);
          } else {
            logger("Found " + pages.length + " pages");

            pages.forEach( function(element, index, array) {
                var currentPage = index + 1;
                logger("Finding contributors - page: "+currentPage);
                // find the names of the authors of each comment on the page
                var usersOnPage = element.match(new RegExp("   — (.*)\n", "g")) || [];
                logger("Cleaning up names - page: "+currentPage);
                // clean up the names (shouldn't have to do this, what's the right way?)
                usersOnPage.forEach( function(element, index, array) {
                    array[index] = element.match(new RegExp("   — (.*)\n"))[1];
                });
                //
                usersOnPage.forEach( function(element, index, array) {
                    var userArray;
                    if ( userIndex[element] ) {
                        userArray = userIndex[element];
                        if ( userArray[userArray.length-1] != currentPage ) {
                            userArray[userArray.length] = currentPage;
                        }
                    } else {
                        userNames.push(element);
                        userIndex[element] = [];
                        userArray = userIndex[element];
                        userArray[0] = currentPage;
                    }
                });
            });
            logger("Sorting contributors' usernames");
            userNames.sort(function (a, b) {
                return a.toLowerCase().localeCompare(b.toLowerCase());
            });