mml-read-tag broken in XEmacs 21.5 (was: attachment problems found but not fixed)

[Reiner Steib <4.uce.03.r.s@nurfuerspam.de>]

[ Cc-ing xemacs-beta ...

`mml-read-tag' as used in Gnus at least since 5.8.8 stopped working in
XEmacs 21.5.

See <URL:http://thread.gmane.org/sdd685fw0w.fsf@wes.hardakers.net> for
the complete thread. ]

On Tue, Feb 24 2004, Katsumi Yamaoka wrote:

>>>>>> In <b9y1xolidfo.fsf@jpl.org> Katsumi Yamaoka wrote:
[...]
> That seems a syntax-table bug in XEmacs 21.5:
>
> (with-temp-buffer
>   (require 'mml)
>   (insert "disposition=attachment")
>   (goto-char (point-min))
>   (with-syntax-table mml-syntax-table
>     (forward-sexp 1)
>     (buffer-substring (point) (point-max))))
>  => ""

In XEmacs 21.4.12, I get "=attachment".

> The with-syntax-table macro makes a copy of mml-syntax-table
> but it doesn't seem to copy modified syntax entries.  So, the
> problem can be fixed by using the Emacs version of the
> with-syntax-table macro which doesn't use copy-syntax-table.
> Should we do so in dgnushack.el?
[...]
> It also means that the Gnus XEmacs package built with XEmacs 21.4
> cannot be used with 21.5.  So, If there is a better way, this should
> be replaced by it.

Shouldn't this be fixed in XEmacs 21.5 instead?  If the change in
XEmacs 21.5 was intended, it might break other lisp packages too.

Bye, Reiner.
-- 
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