Re: auth-source.el: help-print-return-message

[Ted Zlatanov <tzz@lifelogs.com>]

On Thu, 24 Feb 2011 20:00:00 +0100 Reiner Steib <reinersteib+gmane@imap.cc> wrote: 

RS> when compiling Gnus (from git), I get...

RS> $ emacs --version
RS> GNU Emacs 23.1.1
RS> [...]
RS> $ make
RS> [...]
RS> In end of data:
RS> auth-source.el:1331:1:Warning: the function `help-print-return-message' is not
RS>     known to be defined.

RS> When opening the IMAP server, I hit `?' at the "Save auth info to file"
RS> prompt:

RS> | Opening TLS connection to `imap.foo.invalid'...done
RS> | Save auth info to file ~/.authinfo.gpg? y/n/N/e/?: 
RS> | Unable to open server nnimap+imap.foo.invalid due to: \
RS> | Symbol's function definition is void: help-print-return-message
RS> | Opening nnimap server on imap.foo.invalid...failed: 
RS> | Server denied access
RS> | nnimap+imap.foo.invalid:INBOX error: BAD Please login first

This function is supposed to DTRT to dismiss the help buffer (which I
create with `help-mode').  I asked in the bug report and I'll ask here:
can someone tell me a good way to show pop-up help in Emacs?  I looked
at the source and everyone does it differently (I counted 5 different
ways before I have up).  Also it has to work in XEmacs and older Emacsen
so I hope someone can help me out.

One way I thought might work is just to replace the y/n/N part of the
prompt with the expanded versions (and then ? again will unexpand
them).  So:

"prompt ... y/n/?" => user inputs ?? => "prompt ... yes/no but ... /?"
=> user inputs ?? => back to original prompt

This has the advantage of not requiring new windows.

Thanks!
Ted