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<p>Hello,</p>
<p>adding some more details to mention that regex operations done by
the core (the =~ operator) use the libc posix regex functions,
which do not support extended syntax. Also, these operations done
by core use the case insensitive flag.</p>
<p>As mentioned by Henning, regex should be an alternative, or maybe
dialplan if one wants db-storage+caching of those regex rules.</p>
<p>Moreover, if the above are not enough, a kemi embedded
interpreter (e.g., app_lua, app_python) can be used with inline
execution in kamailio.cfg routing blocks -- those external
scripting languages should have many options for regex matching.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 13.10.20 13:04, Henning Westerholt
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:AM0PR05MB6595962C9DB3F4D84C448ADAC5040@AM0PR05MB6595.eurprd05.prod.outlook.com">
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<div class="WordSection1">
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">just an idea, have you already tried this
module:
<a
href="https://www.kamailio.org/docs/modules/stable/modules/regex.html"
moz-do-not-send="true">https://www.kamailio.org/docs/modules/stable/modules/regex.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">Henning<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">-- <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">Henning Westerholt –
</span><span style="mso-fareast-language:EN-US"><a
href="https://skalatan.de/blog/" moz-do-not-send="true"><span
style="color:#0563C1" lang="EN-GB">https://skalatan.de/blog/</span></a></span><span
style="mso-fareast-language:EN-US" lang="EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB">Kamailio services –
</span><span style="mso-fareast-language:EN-US"><a
href="https://gilawa.com/" moz-do-not-send="true"><span
style="color:#0563C1" lang="EN-GB">https://gilawa.com</span></a></span><span
style="mso-fareast-language:EN-US">
<span lang="EN-GB"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"
lang="EN-GB"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal" style="margin-left:35.4pt"><b>From:</b>
sr-users <a class="moz-txt-link-rfc2396E" href="mailto:sr-users-bounces@lists.kamailio.org"><sr-users-bounces@lists.kamailio.org></a>
<b>On Behalf Of </b>Marat Gareev<br>
<b>Sent:</b> Tuesday, October 13, 2020 10:55 AM<br>
<b>To:</b> Kamailio (SER) - Users Mailing List
<a class="moz-txt-link-rfc2396E" href="mailto:sr-users@lists.kamailio.org"><sr-users@lists.kamailio.org></a><br>
<b>Subject:</b> [SR-Users] Caseless regex<o:p></o:p></p>
</div>
<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">Hello,<o:p></o:p></p>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">Is it
possible write more readable regular expression<o:p></o:p></p>
</div>
<div>
<div>
<div>
<p class="MsoNormal"
style="margin-left:35.4pt;line-height:14.25pt"><span
style="font-size:10.5pt;font-family:"Courier
New";color:blue">if</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:black"> ($tU =~
</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:#A31515">"(?i)^test$"</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:black">) {<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:35.4pt;line-height:14.25pt"><span
style="font-size:10.5pt;font-family:"Courier
New";color:black"> ...<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:35.4pt;line-height:14.25pt"><span
style="font-size:10.5pt;font-family:"Courier
New";color:black">}<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"
style="margin-left:35.4pt;line-height:14.25pt"><span
style="font-family:"Arial",sans-serif;color:black">instead
of</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:black">
</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:#A31515">"^[tT][eE][sS][tT]$"</span><span
style="font-size:10.5pt;font-family:"Courier
New";color:black">?</span><span
style="color:black"><o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">On the first
option, I get the error:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">0(47250)
ERROR: <core> [core/rvalue.c:3038]: fix_match_rve():
Bad regular expression<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">Regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="margin-left:35.4pt">Marat<o:p></o:p></p>
</div>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</blockquote>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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