/**
 * Filters the request to allow for the format prefix.
 *
 * @access private
 * @since 3.1.0
 *
 * @param array $qvs
 * @return array
 */
function _post_format_request( $qvs ) {
	if ( ! isset( $qvs['post_format'] ) ) {
		return $qvs;
	}
	$slugs = get_post_format_slugs();
	if ( isset( $slugs[ $qvs['post_format'] ] ) ) {
		$qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ];
	}
	$tax = get_taxonomy( 'post_format' );
	if ( ! is_admin() ) {
		$qvs['post_type'] = $tax->object_type;
	}
	return $qvs;
}

/**
 * Filters the post format term link to remove the format prefix.
 *
 * @access private
 * @since 3.1.0
 *
 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
 *
 * @param string  $link
 * @param WP_Term $term
 * @param string  $taxonomy
 * @return string
 */
function _post_format_link( $link, $term, $taxonomy ) {
	global $wp_rewrite;
	if ( 'post_format' !== $taxonomy ) {
		return $link;
	}
	if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) {
		return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link );
	} else {
		$link = remove_query_arg( 'post_format', $link );
		return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link );
	}
}

/**
 * Remove the post format prefix from the name property of the term object created by get_term().
 *
 * @access private
 * @since 3.1.0
 *
 * @param object $term
 * @return object
 */
function _post_format_get_term( $term ) {
	if ( isset( $term->slug ) ) {
		$term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
	}
	return $term;
}

/**
 * Remove the post format prefix from the name property of the term objects created by get_terms().
 *
 * @access private
 * @since 3.1.0
 *
 * @param array        $terms
 * @param string|array $taxonomies
 * @param array        $args
 * @return array
 */
function _post_format_get_terms( $terms, $taxonomies, $args ) {
	if ( in_array( 'post_format', (array) $taxonomies, true ) ) {
		if ( isset( $args['fields'] ) && 'names' === $args['fields'] ) {
			foreach ( $terms as $order => $name ) {
				$terms[ $order ] = get_post_format_string( str_replace( 'post-format-', '', $name ) );
			}
		} else {
			foreach ( (array) $terms as $order => $term ) {
				if ( isset( $term->taxonomy ) && 'post_format' === $term->taxonomy ) {
					$terms[ $order ]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
				}
			}
		}
	}
	return $terms;
}

/**
 * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms().
 *
 * @access private
 * @since 3.1.0
 *
 * @param array $terms
 * @return array
 */
function _post_format_wp_get_object_terms( $terms ) {
	foreach ( (array) $terms as $order => $term ) {
		if ( isset( $term->taxonomy ) && 'post_format' === $term->taxonomy ) {
			$terms[ $order ]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) );
		}
	}
	return $terms;
}