o Don't match against opers
r Don't match against registered users
c Strip all formatting codes from the message before matching
-* Represents all of the above flags except r
+* Represents all of the above flags except r
- Does nothing, a non-op for when you do not want to specify any
flags
nonick Channel mode +N
nonotice Channel mode +T
regmoderated Channel mode +M
+ repeat Channel mode +E
stripcolor Channel mode +S
topiclock Channel mode +t