regexp help

[ShavdApe]

([\da-zA-Z]"{1}")(\1[\da-zA-Z]{3})

The above regex will match when a character is repeated 5 times or more in sucsession. eg.
Hellooooo
Or at least it will in regexbuddy and in a quick test in mirc but when i try to use the same as a regexp it matches when there are 2 or more so Hello

Any help appreciated.

** [EDIT]

On further testing looks like my regex was wrong to start with hehe and the eggdrop was doing what it was told.
if you hadnt already guessed im new to regex

([\da-zA-Z]{1})(\1{3,}) <--- is the one im trying now

[user]

% regexp {(\w)(\1{4,})} hellllo
0
% regexp {(\w)(\1{4,})} helllllo
1

[DayCuts]

(\d|\w)(\1{4,}) = any word charactor or digit 5 or more times
(.)(\1{4,}) = any charactor at all 5 or more times

edit: guess we were posting at same time :\

Here is a nice website with good guides to regular expressions...
http://www.regular-expressions.info/

[awyeah]

Good info guys, this is helpful for me too!
I am really weak with regular expressions as well as regular substitutions.

[user]

(\d|\w)(\1{4,}) = any word charactor or digit 5 or more times

\w includes \d

[DayCuts]

Your right, i was confusing regex flavors, tcl does include the digits and underscore in \w but there are some dont.