Class-, method-, and function- documentation comments, usually found in languages which accept a literal string indicating what something is like
SmalltalkLanguage or
CommonLisp, in the form:
I am a PHP lexical scanner. Call GET-TOKEN on me to retrieve tokens until I return NIL.
I like this better than traditional third-person "This class scans PHP code. ..." I'm not sure why. --
JasonFelice