Return anchor link for a single crumb in Genesis

genesis.php

/**
 * Return anchor link for a single breadcrumb.
 *
 * @param string      $url     URL for href attribute.
 * @param string      $content Linked content.
 * @param bool|string $sep     Optional. Separator. Default is empty string.
 *
 * @return string HTML markup for anchor link and optional separator.
 */
function nn_get_breadcrumb_link( $url, $content, $sep = '' ) {

  $itemprop_item = genesis_html5() ? ' itemprop="item"' : '';
  $itemprop_name = genesis_html5() ? ' itemprop="name"' : '';

  $link = sprintf(
    '<a href="%s"%s><span%s>%s</span></a>',
    esc_attr( $url ),
    $itemprop_item,
    $itemprop_name,
    $content
  );

  if ( genesis_html5() ) {
    $link = sprintf(
      '<span %s>',
      genesis_attr( 'breadcrumb-link-wrap' )
    ) . $link . '</span>';
  }

  if ( $sep ) {
    $link .= $sep;
  }

  return $link;

}