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| -rw-r--r-- | luatexbase-attr.dtx | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/luatexbase-attr.dtx b/luatexbase-attr.dtx index f10e2de..638cd31 100644 --- a/luatexbase-attr.dtx +++ b/luatexbase-attr.dtx @@ -522,6 +522,11 @@ luatexbase.new_user_whatsit_id = new_user_whatsit_id % creates the corresponding whatsit node of subtype “user-defined”. % We return a nullary function that delivers copies of the whatsit. % +% Alternatively, the first argument can be a whatsit node that +% will then be used as prototype. Note that in this case a +% \emph{copy} of the prototype will be stored in the closure, +% eliminating side-effects. +% % \begin{macrocode} --- (string | node_t) -> string -> ((unit -> node_t) * int) local new_user_whatsit = function (req, package) |