+@register.simple_tag
+def book_tree_texml(book_list, books_by_parent, depth=1):
+ return "".join("""
+ <cmd name='hspace'><parm>%(depth)dem</parm></cmd>%(title)s
+ <spec cat='align' /><cmd name="note"><parm>%(audiences)s</parm></cmd>
+ <spec cat='align' /><cmd name="note"><parm>%(audiobook)s</parm></cmd>
+ <ctrl ch='\\' />
+ %(children)s
+ """ % {
+ "depth": depth,
+ "title": book.title,
+ "audiences": ", ".join(book.audiences_pl()),
+ "audiobook": "audiobook" if book.has_media('mp3') else "",
+ "children": book_tree_texml(books_by_parent.get(book.id, ()), books_by_parent, depth + 1)
+ } for book in book_list)
+
+
+@register.simple_tag
+def all_editors(extra_info):
+ editors = []
+ if 'editors' in extra_info:
+ editors += extra_info['editors']
+ if 'technical_editors' in extra_info:
+ editors += extra_info['technical_editors']
+ # support for extra_info-s from librarian<1.2
+ if 'editor' in extra_info:
+ editors.append(extra_info['editor'])
+ if 'technical_editor' in extra_info:
+ editors.append(extra_info['technical_editor'])
+ return ', '.join(
+ ' '.join(p.strip() for p in person.rsplit(',', 1)[::-1])
+ for person in sorted(set(editors)))
+