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Message-ID:  <18142.20142.549886.908550@morse.mittelbach-online.de>
Date:         Wed, 5 Sep 2007 08:37:34 +0200
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From: Frank Mittelbach <frank.mittelbach@LATEX-PROJECT.ORG>
Subject: Re: l3prop: documentation
To: LATEX-L@LISTSERV.UNI-HEIDELBERG.DE
In-Reply-To:  <87ir6qng8e.fsf@buckbeak.hogwarts>
Precedence: list
Status: R

Andreas,

 > But \prop_get_gdel:NNN doesn't work, yet. The value of the deleted
 > key is not assigned to the tlp.

hmm, something got messed up when the prop implementation got changed from
using sequences (with tlps) to toks registers. try this one

\RequirePackage{l3prop}

\ExplSyntaxOn

\def_long:NNn \prop_get_del_aux:w 6
{
  \tlp_set:Nn #1{#5}
  \quark_if_no_value:NF #1
    {
     \def:Npn \tmp:w ##1#3\q_no_value {#2{#4##1}}
     \tmp:w #6
    }
}

i haven't updated it yet as I wonder why that change was done. using
\quark_if_no_value:NF is much much faster than \quark_if_no_value:nF as the
later literately scans for \q_no_value which the former just uses the quark
feature that

\tlp_set:Nn \FOO{\BAR}
\if_meaning:NN \FOO \BAR  ->  true if and only if \BAR was a quark

frank