Wordpress Pagenavi Helper to display pagenavi like Twitter Bootstrap Pagination

bootstrap_pagenavi.php

<?php
/**
* Twitter Bootstrap Pagenavi
*
* This is tweaks function to display WP-Pagenavi markup that displayed like
* Twitter Bootstrap Pagination.
* 
* Do not fille the pagenavi's options below:
*   - Text For Number Of Pages
*   - Text For `First` / `Last Page`
*   - Text For `Previous ...` / `Next ...`
*
* Usage:
*     Just put this code on your theme's function.php
*
* @author Novrian Nono <me@novrian.info>
* @param string $size Bootstrap Pagination Size: `normal | small | large | mini`
* @param string $position Bootstrap Pagination Position: `left | centered | right`
* @param boolean $post set it to true on multipart post
* @param object WP_Query Object if you use custom query
*/
function nofx_wp_pagenavi($size = null, $position = null, $post = false, $queryArgs = null) {
    if (!function_exists('wp_pagenavi')) {
        return null;
    }

    $class[] = "pagination"; // Set Main Class

    // Pagination Size Class
    if (!$size) {
        $size = '';
    }
    $class[] = (!$size) ? '' : "pagination-" . $size;

    // Pagination Position, default LEFT
    if (!$position) {
        $position = 'left';
    }
    $class[] = "pagination-" . $position;

    // Set Before & After Output
    $before = "<div class=\"" . implode(" ", $class) . "\"><ul>";
    $after = "</ul></div>";

    // Build Args
    $args = array(
        'before' => $before,
        'after' => $after
    );

    // Cloning untuk wp_link_pages()
    if ($post) {
        $args['type'] = 'multipart';
    }

    if ($queryArgs) {
        $args['query'] = $queryArgs;
    }

    return wp_pagenavi($args);
}

/**
 * This is filter that help above template tags
 */
function nofx_pagenavi_filter($html) {
  $out = str_replace('<div class=\'wp-pagenavi\'>', '', $html);
  $out = str_replace('</div></ul></div>', '</ul></div>', $out);
  $out = str_replace('<a ', '<li><a ', $out);
  $out = str_replace('</a>', '</a></li>', $out);
  $out = str_replace('<span', '<li><a href="#"><span', $out);
  $out = str_replace('</span>', '</span></a></li>', $out);
  $out = preg_replace('/<li><a href="#"><span class=[\'|"]pages[\'|"]>([0-9]+) of ([0-9]+)<\/span><\/a><\/li>/', '', $out);
  $out = preg_replace('/<li><a href="#"><span class=[\'|"]extend[\'|"]>([^\n\r<]+)<\/span><\/a><\/li>/', '<li class="disabled"><a href="#">&hellip;</a></li>', $out);
  $out = str_replace('<li><a href="#"><span class=\'current\'', '<li class="active disabled"><a href="#"><span class="current"', $out);

  return $out;
}
add_filter('wp_pagenavi', 'nofx_pagenavi_filter', 10, 2);