bug#19900: 24.4; info-look.el quotes from makeinfo @item

[Eli Zaretskii]

> From: Kevin Ryde <user42_kevin@yahoo.com.au>
> Date: Thu, 19 Feb 2015 16:40:47 +1100
> 
> Recent makeinfo on @item generates forward quote 'foo' rather than
> backquote `foo' which it used to.  info-look.el doesn't match the
> forward 'foo' in various places which are @table (as opposed to @defun
> etc).

These two characters are actually customizable in the latest Texinfo
(although I doubt that many people use that feature).  So perhaps
there should be a defcustom for them, so users could use other
characters if needed.

> 2015-02-19  Kevin Ryde  <user42_kevin@yahoo.com.au>
> 
>       * info-look.el (c-mode, bison-mode, makefile-mode)
>       (makefile-automake-mode, texinfo-mode, autoconf-mode, awk-mode)
>       (latex-mode, emacs-lisp-mode, sh-mode, cfengine-mode): Match both
>       `foo' and 'foo' for @item and similar.
>       (emacs-lisp-mode): U+2018,U+2019 in emacs.info and elisp.info too.
>       (latex-mode): Match multi-arg \frac{num}{den} or \sqrt[root]{n} in
>       suffix regexp

Why do you confine U+2018 and U+2019 to Emacs manuals?  AFAIK, they
will appear in any manual that has its @documentencoding set to UTF-8.
So I think you can see that in any manual any time.

Thanks.