Hi, I want to improve the regex module by allowing that the function pcre_match_group() accepts a pseudo variable as second argument, to get something like this: $avp(i:11) = 111; if pcre_match_group("$rU","$avp(i:11)") ... So I'm modifying regex_mod.c: - Before: { "pcre_match_group", (cmd_function)w_pcre_match_group, 2, fixup_spve_uint, 0, REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE } - Now: { "pcre_match_group", (cmd_function)w_pcre_match_group, 2, fixup_spve_spve, 0, REQUEST_ROUTE|FAILURE_ROUTE|ONREPLY_ROUTE|BRANCH_ROUTE|LOCAL_ROUTE } Then in the function code I do (just the additions): ------------------------------------------------------------------------- static int w_pcre_match_group(struct sip_msg* _msg, char* _s1, char* _s2) { str group; if (_s2 == NULL) { num_pcre = 0; } else { if (fixup_get_svalue(_msg, (gparam_p)_s2, &group)) { LM_ERR("cannot print the format for second param\n"); return -5; } num_pcre = (int)(long)group.s; LM_INFO("***debugging*** group.s = <%s> - group.len = <%i> - num_pcre = <%i>\n", group.s, group.len, num_pcre); } ------------------------------------------------------------------------ With the above example: $avp(i:11) = 111; if pcre_match_group("$rU","$avp(i:11)") I get the following wrong outpu (num_pcre should be 111): INFO:regex:w_pcre_match_group: ***debugging*** group.s = <111> - group.len = <3> - num_pcre = <7198368> So, how to convert group.s into an integer? Thanks a lot for any help. PS: I'm coding it in Kamailio 1.5. -- Iñaki Baz Castillo &lt;ibc(a)aliax.net&gt;