bug#47784: 27.2: ses-header-row [PATCH INCLUDED]

[Lars Ingebrigtsen <larsi@gnus.org>]

Boruch Baum <boruch_baum@gmx.com> writes:

> Two patch files are attached.
>
> + ses-header-row.patch
>
>   + Function `ses-set-header-row' was determining the current row based
>     upon variable `ses--curcell', but that variable is NIL until one
>     begins an operation on a cell (eg. keybindings '=', '"'), so
>     navigating to a row was insufficient to select that row, and further
>     generated an ERROR because the code was not expecting a NIL value for
>     variable `ses--curcell'
>
>   + Using function `user-error' instead of `error' doesn't spawn a
>     debug session and backtrace buffer when variable
>     `toggle-debug-on-error' is set.
>
> + ses-user-error.patch
>
>   + Quasi-randomly replaces some calls to function `error' with
>     `user-error'.

Looks good to me, so I've applied both patches to Emacs 28.  Eli had
some questions about the usage of user-error instead of error in the
second patch, but as far as I can tell, using `user-error' is indeed the
right thing here, because the errors in question seem more user
initiated.

I've got two tiny comments about the patch.  First of all, the
whitespace seemed odd:

lisp/ses.el:3462: space before tab in indent.
+         	  (currow (1+ (car (ses-sym-rowcol curcell)))))

So I fixed that up, but I've seen that in other patches -- could you
have a look and see what's causing this mixture of tab and spaces?

The other comment is that it would be nice to have ChangeLog-style
commit messages -- use `C-x 4 a' to format one before sending patches.
Less work when applying the patch.  :-)

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no