On Sun, Jul 19, 2020 at 08:28:34PM +0200, Marcin Gryszkalis via Exim-users
wrote:
> select regexp_replace('${quote_mysql:$authenticated_id}',
> '[^A-Za-z0-9_.-]', '') }}/${tod_logfile}
>
> I know I could just use
> file = /archive/from-${lookup mysql {
> select '${quote_mysql:$authenticated_id}'}}/${tod_logfile}
> but I wanted example which matches proposed "detaint" function.
Try:
${lookup {string} nwildlsearch,ret=key {/run/detaint}\
{expr-if-matched}{expr-if-fail}}
where /run/detaint is file with character filter, in your case it may be
a single string with regex ^[\w\.\-]$ or
^[A-Za-z0-9_\.\-]+$
PS. In Linux /run is memory-mapped fs, so hard disk is never touched.
--
Eugene Berdnikov
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