Re: The symbol `@' and sexp scanning

[Andreas Politz]

I believe the answer is in here:

,----[ (info "(elisp) Syntax Flags") ]
|    • ‘p’ identifies an additional prefix character for Lisp syntax.
|      These characters are treated as whitespace when they appear between
|      expressions.  When they appear within an expression, they are
|      handled according to their usual syntax classes.
`----

This flag is set in elisp buffers.  But after evaluating
(modify-syntax-entry ?@ "_") the function performs as expected.

-ap