GNU Info

(emacs-lisp-intro.info)b for interactive

---

Prev: Read-only buffer Up: insert-buffer interactive

---

Enter node , (file) or (file)node

`b' in an Interactive Expression
................................

   The next argument in the interactive expression starts with a lower
case `b'.  (This is different from the code for `append-to-buffer',
which uses an upper-case `B'.  Note: The Definition of
`append-to-buffer'.)  The lower-case `b' tells the
Lisp interpreter that the argument for `insert-buffer' should be an
existing buffer or else its name.  (The upper-case `B' option provides
for the possibility that the buffer does not exist.)  Emacs will prompt
you for the name of the buffer, offering you a default buffer, with
name completion enabled.  If the buffer does not exist, you receive a
message that says "No match"; your terminal may beep at you as well.