[OS X Emacs] iESS problem with aquamacs 3

Nathaniel Cunningham nathaniel.cunningham at gmail.com
Thu Mar 6 18:40:33 EST 2014

I have traced this issue to `move-point-visually': evaluating
(move-point-visually -1)
in the minibuffer in your test case moves point to the beginning of the
move-point-visually is defined in C source code, and I haven't investigated
further at this time.

This should be reported as an aquamacs bug, through the Help menu, though
it may be due to an upstream problem in Emacs.

On Thu, Mar 6, 2014 at 4:46 PM, M A <markoilcan at gmail.com> wrote:

> Upon further investigation, I find that I have the same problem in all
> buffers and modes I have tried. It appears that to have this behavior the
> point needs to be at the end of the buffer (no other characters, including
> \n following where the cursor is) and there needs to be a space character
> earlier in the line. When these conditions are met (with
> global-hl-line-mode), pushing the left arrow keys causes the cursor to jump
> to the first space to the left of the cursor (i.e. it moves left one word).
> To replicate this:
> 1. Start aquamacs without customizations.
> 2. M-x global-hl-line-mode.
> 3. Type " testing" (note space before the word "testing").
> 4. Press left arrow key once.
> At this point the cursor is to the left of the space character before the
> word "testing" instead of before the letter "g".
> Thanks.
> On Thu, Mar 6, 2014 at 3:05 PM, M A <markoilcan at gmail.com> wrote:
>> I just upgraded to aquamacs 3 and have encountered a problem when using
>> inferior ESS mode. In particular when I'm entering a command at the prompt,
>> if I hit the left arrow key, the point moves to the beginning of the line
>> rather than back a single character. This behavior occurs because I have
>> global-hl-line-mode set to true in my customization file. If I disable this
>> customization I get the expected behavior of moving left a single
>> character. This problem only seems to occur in iESS. I notice that the left
>> arrow key is bound to aquamacs-left-char rather than backwards-char, so I
>> suppose the problem is here, though I don't understand why this only
>> happens in iESS. Can anyone come up with a suggested fix?
>> Thanks,
>> Mark
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