Re: [PATCH] Fix gnus-message-citation-mode for (S)XEmacs

[Katsumi Yamaoka <yamaoka@jpl.org>]

>>>>>> In <m1r6t0mtg9.fsf@davestoy.homelinux.org> Dave Goldberg wrote:

>> but I do appear to be getting at least the same fontification I had
>> before this update.

>>>>> In <b4mirecp6sb.fsf@jpl.org> Katsumi Yamaoka wrote:

> I have the same problem as yours with the home pc.

I seem to have solved this problem.  Could you try it?

Formerly `gnus-message-citation-mode' modified the value of
`font-lock-keywords' directly.  However, the value is determined
according to the value of `font-lock-defaults' normally and the
variables listed in `font-lock-defaults' don't have the keywords
for `gnus-message-citation-mode'.  So, it is possible that
`gnus-message-citation-mode' is invalidated if some program[1]
resets font-lock-keywords' according to `font-lock-defaults' for
some purpose or a user resets it in order to apply the value of
`message-font-lock-keywords' that a user customized using
`gnus-message-setup-hook'[2] for example.

I've made changes to make `gnus-message-citation-mode' work in
the different way.  Now `message-font-lock-keywords' is buffer
local in message buffers and gains the elements of
`gnus-message-citation-keywords'.  `font-lock-add-keywords' and
`font-lock-remove-keywords' are no longer used.

[1] At least develock.el does it.
[2] Take care not to disregard the values added to
    `message-font-lock-keywords' by `gnus-message-citation-mode'
    if you do something in `gnus-message-setup-hook'.

Regards,