On Tue, 26 Mar 2013 13:06:48 -0400 Stefan Monnier <monnier@IRO.UMontreal.CA> wrote: 

>> The below simply adds a buffer-local `subword-superiority' defcustom
>> which, when set, makes `subword-mode' treat symbol_words as a single
>> word.  I named it to reflect the opposite behavior (the opposite of
>> "sub" is usually "super", e.g. subscript vs. superscript).  Let me know
>> what you think and if you'd rather see a separate mode or even a
>> separate file instead.  IMO it's such a simple change that I'd rather
>> not make it a big deal.

SM> Using the same file sounds good (if we can come up with a good
SM> encompassing name, we could rename it, but for now it can stay as it is).

SM> So it mostly looks OK, except that rather than a defcustom, I'd prefer
SM> to have a new superword-mode minor mode (and global-superword-mode,
SM> which you already added).

OK; see attached.  Implemented by looking at the `superword-mode'
variable in the internal `subword-mode' commands.

Note new lighter for `subword-mode' as well.  I tried to make the two
modes mutually exclusive but perhaps there's a better way than
explicitly doing it?

Right now, if I do

M-x subword-mode
M-x superword-mode

It correctly turns off `subword-mode' but does not turn `superword-mode'
on.  I have to do `M-x superword-mode' again to enable
`superword-mode'.  I'm not sure how the minor modes interact and didn't
want to spend too much time on the mutual exclusivity.

>> The only possible enhancement I'd want over the attached is to also make
>> `subword-mode' override the CUA keyboard shortcuts (C-left, C-right),
>> but I wasn't sure if that's OK in general.

SM> Yes, that'd be good.

Included and done for both `subword-mode' and `superword-mode'.

Ted