add a.parent in wp_list_pages

According to this thread, you can add a custom Walker class to your wp_list_pages() call. It looks like that’s the way to go, since wp_list_pages() prints or returns a string.

If you set $args['echo'] to false, you can do some string manipulation before you echo() it, but it seems to me that the Walker solution is probably the way to go.

Unfortunately the Walker documentation looks a little thin.

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