feature/rcirc-update 70d4599 4/7: Implement multi-prefix capability

[Philip Kaludercic]

branch: feature/rcirc-update
commit 70d459914f25f52b950b41b8fd2717e1687c3776
Author: Philip Kaludercic <philipk@posteo.net>
Commit: Philip Kaludercic <philipk@posteo.net>

    Implement multi-prefix capability
    
    * rcirc.el (rcirc-implemented-capabilities): Add capability
    (rcirc-user-nick): Handle multiple prefixes
---
 lisp/net/rcirc.el | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lisp/net/rcirc.el b/lisp/net/rcirc.el
index be90c56..5a6688d 100644
--- a/lisp/net/rcirc.el
+++ b/lisp/net/rcirc.el
@@ -606,6 +606,7 @@ See `rcirc-connect' for more details on these variables.")
     "message-ids"                       
;https://ircv3.net/specs/extensions/message-ids
     "invite-notify"                     
;https://ircv3.net/specs/extensions/invite-notify
     "sasl"                              
;https://ircv3.net/specs/extensions/sasl-3.1
+    "multi-prefix"                      
;https://ircv3.net/specs/extensions/multi-prefix
     )
   "A list of capabilities that rcirc supports.")
 (defvar-local rcirc-requested-capabilities nil
@@ -2011,7 +2012,8 @@ PROCESS is the process object for the current connection."
   "Return the nick from USER.  Remove any non-nick junk."
   (save-match-data
     (if (string-match (concat "^[" rcirc-nick-prefix-chars
-                             "]?\\([^! ]+\\)!?") (or user ""))
+                             "]*\\([^! ]+\\)!?")
+                      (or user ""))
        (match-string 1 user)
       user)))