Function: thing-at-point

Return the THING at point.
THING should be a symbol specifying a type of syntactic entity.
Possibilities include `symbol', `list', `sexp', `defun',
`filename', `url', `email', `word', `sentence', `whitespace',
`line', `number', and `page'.

See the file `thingatpt.el' for documentation on how to define
a symbol as a valid THING. (fn THING)