set iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
endif
-syn cluster factorCluster contains=factorComment,factorKeyword,factorRepeat,factorConditional,factorBoolean,factorCompileDirective,factorString,factorSbuf,@factorNumber,@factorNumErr,factorDelimiter,factorChar,factorCharErr,factorBackslash,@factorWordOps,factorAlien,factorTuple,factorStruct
+syn cluster factorCluster contains=factorComment,factorKeyword,factorRepeat,factorConditional,factorBoolean,factorCompileDirective,factorString,factorTriString,factorSbuf,@factorNumber,@factorNumErr,factorDelimiter,factorChar,factorCharErr,factorBackslash,@factorWordOps,factorAlien,factorTuple,factorStruct
syn match factorTodo /\(TODO\|FIXME\|XXX\):\=/ contained
syn match factorComment /\<#!\>.*/ contains=factorTodo