是的，您可以继续嵌套短代码。只要继续使用do_shortcode() 直到到达最深处。https://codex.wordpress.org/Shortcode_API#Nested_Shortcodes

所以你可以这样做，

[container]
  [other_column class="extra-class"]
    [content]
      col 1
    [/content]
    [another]
      col 1-2
    [/another]
  [/other_column]
  [column]
    [another]
      col 2
    [/another]
  [/column]
[/container]

<div class="container">
  <div class="other-column extra-class">
    <div class="content">
      col 1
    </div>
    <div class="another">
      col 1-2
    </div>
  </div>
  <div class="column">
    <div class="another">
      col 2
    </div>
  </div>
</div>

function container_shortcode($atts = array(), $content = null) {
  return \'<div class="container">\' . do_shortcode($content) . \'</div>\';
}
add_shortcode( \'container\', \'container_shortcode\' );

function column_shortcode($atts = array(), $content = null) {
  return \'<div class="column">\' . do_shortcode($content) . \'</div>\';
}
add_shortcode( \'column\', \'column_shortcode\' );

function other_column_shortcode($atts = array(), $content = null) {
  $defaults = array(
    \'class\' => \'\',
  );
  $atts = shortcode_atts( $defaults, $atts, \'other_column_shortcode\' );
  $class = (! empty($atts[\'class\']) ) ? \'other-column \' . $atts[\'class\'] : \'other-column\';
  return \'<div class="\' . esc_attr($class) . \'">\' . do_shortcode($content) . \'</div>\';
}
add_shortcode( \'other_column\', \'other_column_shortcode\' );

function content_shortcode($atts = array(), $content=null) {
  return \'<div class="content">\' . $content . \'</div>\';
}
add_shortcode( \'content\', \'content_shortcode\' );

function another_shortcode($atts = array(), $content=null) {
  return \'<div class="another">\' . $content . \'</div>\';
}
add_shortcode( \'another\', \'another_shortcode\' );