[Asterisk-Dev] extension pattern should recognize regular expression syntax

[Maxim Litnitsky]

Hello dear developers!
I had a task to match number  sent to me as customerid#called.
I could not use
exten => _.#. because . eats all till the end.
If only I could use:
exten => _[0-9]+#[0-9]+ it would solve the issue.

Why not introduce regular extenions in dialplan ? Like in Mera MVTS softswitch. 
Looking forward to your comments!