c# - Regular expression - Avoiding characters -

while using regex in c#, i'm facing following problem :

consider simple string : ~0~this simple text~pop~niz~0~0~

i pick strings between 2 '~', contains more 3 chars except of course '~'. in example, :

this simple text

i make : ([\w]|[\d]|.|\,.................){4-500}

i end long regex, impossible debug , not readable...

instead, prefer create regex "give me characters, except '~' contained between '~' , '~' ".

i can't find way use [^] !

how can ?

thanks in advance !

answer : i've done : ~[^~]{3,}~

it takes '~', contained between 2 '~' , more 3 chars long.

thanks answers !

if don't mind possible batch start , end, should easy as:

[^~]{3,} 

or, can split , take long ones:

var tokens = str.split('~').where(s => s.length >= 3); 

if want limit characters specific set, can use lookahead , behind make sure. not consume tilde signs, 2 matches ~123~abc~ (again, can use [^~] if move comfortable it):

(?<=~)[\w\d\s]{3,}(?=~)