Token Prefixes
Token prefixes, if present, are placed just before the TokenRoot. They give Q++ an indication that the TokenRoot must be processed in a special manner.
Note that a token prefix may actually result in some text being added to the back of the token's result, and vice-versa, a token suffix may result in some text being added to the front of the token's result. The terms prefix/suffix refer to the position inside the token, and do not refer to the result itself.
See also : zap tokens and Token Suffixes.