bug#10494: 24.0.92; Syntax table and non-ASCII character interaction

[Eli Zaretskii]

> From: npostavs@users.sourceforge.net
> Cc: 10494@debbugs.gnu.org,  aaronecay@gmail.com
> Date: Sat, 13 Aug 2016 10:19:34 -0400
> 
> >>     (modify-syntax-entry ?’ "w" text-mode-syntax-table)
> >>     (defconst my-text-char-script-table
> >>       (let ((table (copy-sequence char-script-table)))
> >>         (aset table ?’ 'latin)
> >>         table))
> >> 
> >>     (defun my-text-mode-hook ()
> >>       (set (make-local-variable 'char-script-table)
> >>            my-text-char-script-table))
> >>     (add-hook 'text-mode-hook 'my-text-mode-hook)
> >
> > Are you sure nothing in text-mode will ever want to use \s_ in any
> > regexp?
> 
> Did you mean \> (word boundary) or \s. (punctation)?  \s_ doesn't match
> ’ regardless because its syntax class is punctuation, not symbol.

Sorry, I guess I was thinking of \cl.  It will not match ’, although
it might be expected.

Anyway, my point is that these char-tables should really be treated as
read-only by Lisp applications.

> Pushed as 8342e748

Thanks.