ColdFusion Lexer doesn't work on script-only files.
As of ColdFusion v9 the language supports ColdFusion component files (*.cfc) that consist of cfscript exclusively. This is to say there are no tags in it whatsoever. The file begins with the keyword "component" and ends with the closing curly brace.
The built-in functions, operators, keywords, etc. found inside the script are all common to the language. No additional/special cases exist.