* Joseph Wright <[log in to unmask]> [2012-02-21 12:56:31 +0000]: : 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 Sigh:-) Thanks Joseph. Regards, Marc van Dongen