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Message-ID:  <4F43947F.3070701@morningstar2.co.uk>
Date:         Tue, 21 Feb 2012 12:56:31 +0000
Reply-To: Mailing list for the LaTeX3 project
              <LATEX-L@listserv.uni-heidelberg.de>
Sender: Mailing list for the LaTeX3 project <LATEX-L@listserv.uni-heidelberg.de>
From: Joseph Wright <joseph.wright@MORNINGSTAR2.CO.UK>
Subject: Re: Problem with regex
To: LATEX-L@listserv.uni-heidelberg.de
In-Reply-To:  <20120221120259.GA18620@csmvddesktop>
Precedence: list
Status: R

On 21/02/2012 12:02, dongen wrote:
>     \tl_new:N \l_arg_tl
>     \regex_const:Nn \c_slash_regex_tl    { / }
>     \tl_set:Nn \l_arg_tl {1234/5678/9012}
>     \regex_replace_all:NnN \c_slash_regex_tl {\c{textbackslash}} \l_arg_tl
>     \regex_use:N \l_arg_tl

       ^^^^^^^^^^^

You want \tl_use:N
--
Joseph Wright