orthonym.assembly.engine_prefix_ordering

Note

Internal API. Names and behaviour may change between releases.

The ordering name of a prefix is asked the way the general engine names that prefix.

The ring numberings of NUMBERING (the Blue Book) decide a tie by criterion (g), “lowest locants for the substituent cited first as a prefix in the name” (:3307), over the alphanumerical key of each prefix on the ring (substituent_enumerator.name_substituent_for_ordering). The general engine cites a prefix with name_substituent(..., allow_mancude=allow_aromatic_general) while the four propagation flags of the context stay as the clean fall-through resets them (namer._try_besteffort_clean_general_fallthrough), so the prefix it cites is the one the universal recursion builds, and the key of (g) is the name of that same prefix. Asked of the cascade alone, which does not name an N-substituted thiocarbamoyl or carbamoyl group, the key was missing, (g) was skipped, and the canonical ranks decided which prefix of a 1,4-disubstituted piperazine took locant 1.

orthonym.assembly.engine_prefix_ordering.engine_prefix_ordering(allow_mancude)

Mark the body as the general engine naming its prefixes with allow_mancude.

The mark holds for the naming-session depth of the engine call only: a substituent the engine names is named one session deeper, by a namer whose own prefixes are asked the cascade as before. allow_mancude False marks nothing.

orthonym.assembly.engine_prefix_ordering.engine_orders_with_mancude()

True when the current naming call is the engine run engine_prefix_ordering marked.