Fix 'lookahead' function
Fix 'lookahead' function

LubyRuffy/haka,Wingless-Archangel/haka,LubyRuffy/haka,nabilbendafi/haka,lcheylus/haka,haka-security/haka,haka-security/haka,lcheylus/haka,Wingless-Archangel/haka,nabilbendafi/haka,lcheylus/haka,haka-security/haka,nabilbendafi/haka