1code    = "/\<code\>.*^\<\/code\>/smU"
2file    = "/\<file\>.*^\<\/file\>/smU"
3nowiki  = '/nowiki\>.*^\<\/nowiki/smU'
4nowiki2 = "/%%.*^%%/smU"
5html    = "/\<html\>.*^\<\/html\>/smU"
6php     = "/\<php\>.*^\<\/php\>/smU"