Hi Inaki,

that works with string transformations:
- in older versions, use s.substr
- in last one there is s.strip

Cheers,
Daniel

On 9/16/10 8:28 PM, Iñaki Baz Castillo wrote:
2010/9/16 Iñaki Baz Castillo<i...@aliax.net>:
Hi, I get a prefix string from a database and store it in
$var(prefix). Such prefix can contain any number of digits (no fixed
length).
Now I must to check if the RURI username begins with that prefix and
in that case strip it.

I can get the first step (detect it) using pcre_match function:

  if pcre_match("$rU", "^$var(prefix)") {
    # Prefix match.


But I cannot get the second part working (stripping it). I've tryed everything:

- strip() is not valid as just allows an integer (no pv).

- subst_user() doesn't accept pv:
     if subst_user("/^$var(prefix)(.*)$/\1/")


Any ideas please? Thanks a lot.

Finally I got it in an ugly way (assuming that prefix has as maximun 7 digits):

-------------------
     # Check that the dialed number begins with the
     # configured 'prefix_in'. If not drop the call.
     #
     if ! pcre_match("$rU", "^$var(prefix)") {
       xlog("L_NOTICE", "prefix doesn't match =>403\n");
       send_reply("403", "Forbidden: Wrong Prefix");
       exit;
     }

     # If so, strip the prefix.
     #
     $var(prefix_in_length) = $(var(client_prefix_in){s.len});
     switch($var(prefix_in_length)) {
       case 1:
         strip(1);
         break;
       case 2:
         strip(2);
         break;
       case 3:
         strip(3);
         break;
       case 4:
         strip(4);
         break;
       case 5:
         strip(5);
         break;
       case 6:
         strip(6);
         break;
       case 7:
         strip(7);
         break;
     }
------------------


Any suggestion providing a more ellegant way is welcome :)


--
Daniel-Constantin Mierla
http://www.asipto.com


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