Variable: erc-valid-nick-regexp
erc-valid-nick-regexp is a variable defined in erc.el.gz.
Value
"[]a-zA-Z^[;\\`_{}|][]^[;\\`_{}|a-zA-Z0-9-]*"
Documentation
Regexp which matches all valid characters in a IRC nickname.
Source Code
;; Defined in /usr/src/emacs/lisp/erc/erc.el.gz
(defvar erc-valid-nick-regexp "[]a-zA-Z^[;\\`_{}|][]^[;\\`_{}|a-zA-Z0-9-]*"
"Regexp which matches all valid characters in a IRC nickname.")