Frank Mittelbach wrote:

>  > * What is \prop_gput:Ooo for? Hasn't got \prop_gput:Noo the
>  >   same functionality? (Let alone that \prop_gput:Ooo doesn't
>  >   work, yet.)
> 
> O in contrast to o means single expanion on an input which is a single token
> ie no braces around it.
> 
> \tlp_new:N \l_tmp_tlp
  ^^^^^^^^^^
;-)
I am doing this mistake frequently. But there is only a
\tlp_clear_new:N. Maybe there really should exist a \tlp_new:N.

> \prop_new:N \g_foo_prop
> 
> \tlp_set:Nn \l_tmp_tlp {\g_foo_prop}
> 
> \prop_gput:Ooo \l_tmp_tlp ...


Hmm... But this could be done with \prop_gput:Noo as well.


\RequirePackage{l3prop}
\RequirePackage{l3tlp}
\ExplSyntaxOn

\tlp_new:Nn \l_tmp_tlp {}
\prop_new:N \g_foo_prop

\tlp_set:Nn \l_tmp_tlp {\g_foo_prop}

\prop_gput:Noo \l_tmp_tlp {key}{info}

\prop_map_inline:Nn \g_foo_prop {\io_put_term:x{#1:~ #2}}

\stop



Ciao
Andreas