<?php
function paginate_links( $args = '' ) {
	global $wp_query, $wp_rewrite;

	$total        = ( isset( $wp_query->max_num_pages ) ) ? $wp_query->max_num_pages : 1;
	$current      = ( get_query_var( 'paged' ) ) ? intval( get_query_var( 'paged' ) ) : 1;
	$pagenum_link = html_entity_decode( get_pagenum_link() );
	$query_args   = array();
	$url_parts    = explode( '?', $pagenum_link );

	if ( isset( $url_parts[1] ) ) {
		wp_parse_str( $url_parts[1], $query_args );
	}

	$pagenum_link = remove_query_arg( array_keys( $query_args ), $pagenum_link );
	$pagenum_link = trailingslashit( $pagenum_link ) . '%_%';

	$format  = $wp_rewrite->using_index_permalinks() && ! strpos( $pagenum_link, 'index.php' ) ? 'index.php/' : '';
	$format .= $wp_rewrite->using_permalinks() ? user_trailingslashit( $wp_rewrite->pagination_base . '/%#%', 'paged' ) : '?paged=%#%';

	$defaults = array(
		'base' => $pagenum_link, // http://example.com/all_posts.php%_% : %_% is replaced by format (below)
		'format' => $format, // ?page=%#% : %#% is replaced by the page number
		'total' => $total,
		'current' => $current,
		'show_all' => false,
		'prev_next' => true,
		'prev_text' => __('&laquo; Previous'),
		'next_text' => __('Next &raquo;'),
		'end_size' => 1,
		'mid_size' => 2,
		'type' => 'plain',
		'add_args' => false, // array of query args to add
		'add_fragment' => '',
		'before_page_number' => '',
		'after_page_number' => '',
		'link_current' => false,
	);

	$args = wp_parse_args( $args, $defaults );

	// Who knows what else people pass in $args
	$total = (int) $args['total'];
	if ( $total < 2 ) {
		return;
	}
	$current  = (int) $args['current'];
	$end_size = (int) $args['end_size']; // Out of bounds?  Make it the default.
	if ( $end_size < 1 ) {
		$end_size = 1;
	}
	$mid_size = (int) $args['mid_size'];
	if ( $mid_size < 0 ) {
		$mid_size = 2;
	}
	$add_args = is_array( $args['add_args'] ) ? $args['add_args'] : false;
	$r = '';
	$page_links = array();
	$page_link_data = array();
	$dots = false;
	$active = false;

	if ( $args['prev_next'] && $current && 1 < $current ) :
		$link = str_replace( '%_%', 2 == $current ? '' : $args['format'], $args['base'] );
		$link = str_replace( '%#%', $current - 1, $link );
		if ( $add_args )
			$link = add_query_arg( $add_args, $link );
		$link .= $args['add_fragment'];

		/**
		 * Filter the paginated links for the given archive pages.
		 *
		 * @since 3.0.0
		 *
		 * @param string $link The paginated link URL.
		 */
		$page_link_data[] = array(
			'type' => 'prev',
			'link' => esc_url( apply_filters( 'paginate_links', $link ) ),
			'text' => $prev_text,
			'active' => false,
		);
	endif;
	for ( $n = 1; $n <= $total; $n++ ) :
		if ( $args['show_all'] || ( $n <= $end_size || ( $current && $n >= $current - $mid_size && $n <= $current + $mid_size ) || $n > $total - $end_size ) ) :
			$link = str_replace( '%_%', 1 == $n ? '' : $args['format'], $args['base'] );
			$link = str_replace( '%#%', $n, $link );
			if ( $add_args ) {
				$link = add_query_arg( $add_args, $link );
			}
			$link .= $args['add_fragment'];

			/** This filter is documented in wp-includes/general-template.php */
			$page_link_data[] = array(
				'type' => 'page',
				'link' => esc_url( apply_filters( 'paginate_links', $link ) ),
				'text' => number_format_i18n( $n ),
				'active' => ( $n == $current ),
			);
			$dots = true;
		elseif ( $dots && !$args['show_all'] ) :
			$page_link_data[] = array(
				'type' => 'dots',
				'link' => null,
				'text' => __( '&hellip;' ),
				'active' => false,
			);
			$dots = false;
		endif;
	endfor;
	if ( $args['prev_next'] && $current && ( $current < $total || -1 == $total ) ) :
		$link = str_replace( '%_%', $args['format'], $args['base'] );
		$link = str_replace( '%#%', $current + 1, $link );
		if ( $add_args )
			$link = add_query_arg( $add_args, $link );
		$link .= $args['add_fragment'];

		/** This filter is documented in wp-includes/general-template.php */
		$page_link_data[] = array(
			'type' => 'next',
			'link' => esc_url( apply_filters( 'paginate_links', $link ) ),
			'text' => $next_text,
			'active' => false,
		);
	endif;
	// If we just want the data without the HTML, then we don't need to
	// process the HTML here.
	if ( $args['type'] != 'array_raw' ) :
		foreach ( $page_link_data as $page_link ) :
			switch( $page_link['type'] ) {
				case 'prev':
					$page_links[] = '<a class="prev page-numbers" href="' . $page_link['text'] . '">' . $prev_text . '</a>';
					break;
				case 'next':
					$page_links[] = '<a class="next page-numbers" href="' . $page_link['text'] . '">' . $next_text . '</a>';
					break;
				case 'dots':
					$page_links[] = '<span class="page-numbers dots">' . $page_link['text'] . '</span>';
					break;
				case 'page':
					if ( ! $args['link_current'] && $page_link['active'] ) {
						$page_links[] = "<span class='page-numbers current'>" . $args['before_page_number'] . $page_link['text'] . $args['after_page_number'] . "</span>";
					} else {
						$page_links[] = "<a class='" . ($page_link['active'] ? 'current ' : null) . "page-numbers' href='" . $page_link['link'] . "'>" . $args['before_page_number'] . $page_link['text'] . $args['after_page_number'] . "</a>";
					}
					break;
			}
		endforeach;
	endif;
	switch ( $args['type'] ) {
		case 'array_raw' :
			return $page_link_data;

		case 'array' :
			return $page_links;

		case 'list' :
			$r .= "<ul class='page-numbers'>\n\t<li>";
			$r .= join("</li>\n\t<li>", $page_links);
			$r .= "</li>\n</ul>\n";
			break;

		default :
			$r = join("\n", $page_links);
			break;
	}
	return $r;
}