GNU bug report logs - #16190
23.4; M-x captialize-word works incorrectly

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.4; M-x captialize-word works incorrectly
Date: Thu, 12 Dec 2013 23:03:28 -0500

With point in the middle of a word, I ran M-x capitalize-word.  Rather 
than capitalize the first letter of the word, as I expected, it 
capitalized the character at point and moved point to the end of the 
word.  (Specifically, rather than change `word' (wo-!-rd) to `Word', it 
changed it to `woRd'.)

I checked this in the message edit buffer, and it seems pretty 
consistent to me.

I was able to reproduce this with M-c as well as M-x capitalize-word (as 
well as ESC c and ESC x capitalize word on the Mac mentioned below).

I was also able to reproduce this in (apparently vanilla?) GNU Emacs 
22.1.1 under Mac OS X (tested in the scratch buffer).

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Message #8 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: caleb <at> compwizard.net
Cc: 16190 <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Thu, 19 Dec 2013 05:51:02 +0200

> Date: Thu, 12 Dec 2013 23:03:28 -0500
> From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
> 
> With point in the middle of a word, I ran M-x capitalize-word.  Rather 
> than capitalize the first letter of the word, as I expected, it 
> capitalized the character at point and moved point to the end of the 
> word.  (Specifically, rather than change `word' (wo-!-rd) to `Word', it 
> changed it to `woRd'.)

That's how capitalize-word is supposed to work.  It's not a bug, but
intended behavior.

Message #11 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Stephen Berman <stephen.berman <at> gmx.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: caleb <at> compwizard.net, 16190 <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Thu, 19 Dec 2013 09:36:54 +0100

On Thu, 19 Dec 2013 05:51:02 +0200 Eli Zaretskii <eliz <at> gnu.org> wrote:

>> Date: Thu, 12 Dec 2013 23:03:28 -0500
>> From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
>> 
>> With point in the middle of a word, I ran M-x capitalize-word.  Rather 
>> than capitalize the first letter of the word, as I expected, it 
>> capitalized the character at point and moved point to the end of the 
>> word.  (Specifically, rather than change `word' (wo-!-rd) to `Word', it 
>> changed it to `woRd'.)
>
> That's how capitalize-word is supposed to work.  It's not a bug, but
> intended behavior.

Then its doc string is incorrect:

   capitalize-word is an interactive built-in function in `C source code'.
   
   It is bound to M-c.
   
   (capitalize-word ARG)
   
   Capitalize the following word (or ARG words), moving over.
   This gives the word(s) a first character in upper case
   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   and the rest lower case.
   ^^^^^^^^^^^^^^^^^^^^^^^^
   With negative argument, capitalize previous words but do not move.

Steve Berman

Message #14 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Drew Adams <drew.adams <at> oracle.com>
To: Stephen Berman <stephen.berman <at> gmx.net>, Eli Zaretskii <eliz <at> gnu.org>
Cc: caleb <at> compwizard.net, 16190 <at> debbugs.gnu.org
Subject: RE: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Thu, 19 Dec 2013 08:28:20 -0800 (PST)

> > That's how capitalize-word is supposed to work.  It's not a bug, but
> > intended behavior.
> 
> Then its doc string is incorrect:
> 
>    capitalize-word is an interactive built-in function in `C source code'.
> 
>    It is bound to M-c.
> 
>    (capitalize-word ARG)
> 
>    Capitalize the following word (or ARG words), moving over.
>    This gives the word(s) a first character in upper case
>    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>    and the rest lower case.
>    ^^^^^^^^^^^^^^^^^^^^^^^^
>    With negative argument, capitalize previous words but do not move.

The key here is the *word that starts at point*.  With point after the `n'
here: "another", the word that starts at point is "other".

It could help for the doc to explicitly emphasize this, as an extra tip.
That is, to point out that there is no scanning backward to find the
maximal word, i.e., to find a non word-constituent character.

But this should be treated as extra info, implied by a statement
(missing, it seems) that the word starts at point.  "The following word"
is too loose a description to make this clear.

Message #19 received at 16190-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Stephen Berman <stephen.berman <at> gmx.net>
Cc: caleb <at> compwizard.net, 16190-done <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Thu, 19 Dec 2013 19:54:01 +0200

> From: Stephen Berman <stephen.berman <at> gmx.net>
> Cc: caleb <at> compwizard.net,  16190 <at> debbugs.gnu.org
> Date: Thu, 19 Dec 2013 09:36:54 +0100
> 
> On Thu, 19 Dec 2013 05:51:02 +0200 Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
> >> Date: Thu, 12 Dec 2013 23:03:28 -0500
> >> From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
> >> 
> >> With point in the middle of a word, I ran M-x capitalize-word.  Rather 
> >> than capitalize the first letter of the word, as I expected, it 
> >> capitalized the character at point and moved point to the end of the 
> >> word.  (Specifically, rather than change `word' (wo-!-rd) to `Word', it 
> >> changed it to `woRd'.)
> >
> > That's how capitalize-word is supposed to work.  It's not a bug, but
> > intended behavior.
> 
> Then its doc string is incorrect:

Fair enough, I fixed the doc string to be more explicit on this matter
(in trunk revision 115612).

Message #22 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
To: 16190 <at> debbugs.gnu.org
Cc: Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Sun, 22 Dec 2013 23:20:33 -0500

(paraphrased quotes)
>>> That's the intended behavior
>> Then its docstring is incorrect
> Fair enough, fixed

Erm, well...

I've had several days to think it over, and I don't agree [that it's 
fixed].  Yes, the docstring is (was) incorrect; and if it hadn't been 
incorrect, I wouldn't have reported it as a bug.

However, the function would still be doing 'The Wrong Thing' (for me, I 
can imagine that cases exist where this isn't), and if I ever used it 
again, it would only be because I forgot that it didn't do what I expected.

I think this is also the point where if I want something more done, I 
really should do it myself.  I'd take it on for sure if it were in 
elisp.  I dunno if I could do it in C.

This seems reasonable as a 'workaround' fix, though.

[I'd agree that "Severity: minor" is correct.]

(I can re-create my mental state leading up to actually sending the bug 
report, or share my mental image of what the function does, if either of 
those would be helpful.)

Message #25 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
To: 16190 <at> debbugs.gnu.org
Cc: Eli Zaretskii <eliz <at> gnu.org>
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Mon, 23 Dec 2013 00:35:41 -0500

It occurred to me that there may be two separate "bugs", and me 
conflating them.

First is "M-x capitalize-word has an incorrect docstring".  That's been 
fixed (or I should say, I take your word for it).

Second is "M-x capitalize-word does the wrong thing".  Whether that's a 
bug may be open to debate (I think it is a bug, or at least a problem, 
obviously), but that hasn't changed.

On 12/22/2013 11:20 PM, Caleb Wakeman wrote:
> (paraphrased quotes)
>  >>> That's the intended behavior
>  >> Then its docstring is incorrect
>  > Fair enough, fixed
>
> Erm, well...
>
> I've had several days to think it over, and I don't agree [that it's
> fixed].  Yes, the docstring is (was) incorrect; and if it hadn't been
> incorrect, I wouldn't have reported it as a bug.
>
> However, the function would still be doing 'The Wrong Thing' (for me, I
> can imagine that cases exist where this isn't), and if I ever used it
> again, it would only be because I forgot that it didn't do what I expected.
>
> I think this is also the point where if I want something more done, I
> really should do it myself.  I'd take it on for sure if it were in
> elisp.  I dunno if I could do it in C.
>
> This seems reasonable as a 'workaround' fix, though.
>
> [I'd agree that "Severity: minor" is correct.]
>
> (I can re-create my mental state leading up to actually sending the bug
> report, or share my mental image of what the function does, if either of
> those would be helpful.)

Message #28 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: caleb <at> compwizard.net
Cc: 16190 <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Mon, 23 Dec 2013 18:12:46 +0200

> Date: Sun, 22 Dec 2013 23:20:33 -0500
> From: Caleb Wakeman <cdw1992 <at> twcny.rr.com>
> CC: Eli Zaretskii <eliz <at> gnu.org>
> 
> (paraphrased quotes)
>  >>> That's the intended behavior
>  >> Then its docstring is incorrect
>  > Fair enough, fixed
> 
> Erm, well...
> 
> I've had several days to think it over, and I don't agree [that it's 
> fixed].  Yes, the docstring is (was) incorrect; and if it hadn't been 
> incorrect, I wouldn't have reported it as a bug.
> 
> However, the function would still be doing 'The Wrong Thing' (for me, I 
> can imagine that cases exist where this isn't), and if I ever used it 
> again, it would only be because I forgot that it didn't do what I expected.

The 3 functions that change letter-case in words, capitalize-word,
upcase-word, and downcase-word work in the same way when moving
forward: they start with the current buffer position.

If you want a function that capitalizes the word at point after
looking back for its beginning, you need to code that using
thing-at-point or some such.

Message #31 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Josh <josh <at> foxtail.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: caleb <at> compwizard.net, 16190 <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Mon, 23 Dec 2013 10:59:59 -0800

On Mon, Dec 23, 2013 at 8:12 AM, Eli Zaretskii <eliz <at> gnu.org> wrote:
> If you want a function that capitalizes the word at point after
> looking back for its beginning, you need to code that using
> thing-at-point or some such.

When point is not already at the start of the word, `capitalize-word'
can already do this pretty easily via `M-- M-c'.

Message #34 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Kevin Rodgers <kevin.d.rodgers <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Thu, 26 Dec 2013 20:30:34 -0700

On 12/23/13 11:59 AM, Josh wrote:
> On Mon, Dec 23, 2013 at 8:12 AM, Eli Zaretskii<eliz <at> gnu.org>  wrote:
>> If you want a function that capitalizes the word at point after
>> looking back for its beginning, you need to code that using
>> thing-at-point or some such.
>
> When point is not already at the start of the word, `capitalize-word'
> can already do this pretty easily via `M-- M-c'.

So for the OP:

(defun capitalize-word-at-point ()
  "Capitalize the word at point (i.e. around point), without moving point."
  (interactive)
  (capitalize-word -1))

(global-set-key "\M-c" 'capitalize-word-at-point) ; was capitalize-word

-- 
Kevin Rodgers
Denver, Colorado, USA

Message #37 received at 16190 <at> debbugs.gnu.org (full text, mbox):

From: Josh <josh <at> foxtail.org>
To: Kevin Rodgers <kevin.d.rodgers <at> gmail.com>
Cc: 16190 <at> debbugs.gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Fri, 27 Dec 2013 21:31:25 -0800

On Thu, Dec 26, 2013 at 7:30 PM, Kevin Rodgers
<kevin.d.rodgers <at> gmail.com> wrote:
> On 12/23/13 11:59 AM, Josh wrote:
>>
>> On Mon, Dec 23, 2013 at 8:12 AM, Eli Zaretskii<eliz <at> gnu.org>  wrote:
>>>
>>> If you want a function that capitalizes the word at point after
>>> looking back for its beginning, you need to code that using
>>> thing-at-point or some such.
>>
>>
>> When point is not already at the start of the word, `capitalize-word'
>> can already do this pretty easily via `M-- M-c'.
>
> (defun capitalize-word-at-point ()
>   "Capitalize the word at point (i.e. around point), without moving point."
>   (interactive)
>   (capitalize-word -1))

Unfortunately it's not quite that simple, because calling that function
when point is before the first character of a word will capitalize the
preceding word instead of the word following point.  Something like
  (defun capitalize-word-at-point ()
    "Capitalize the word at point."
    (interactive)
    (save-excursion
      (forward-word)
      (backward-word)
      (capitalize-word 1)))
should suffice, though there are probably more elegant approaches.

Message #40 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Kevin Rodgers <kevin.d.rodgers <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Re: bug#16190: 23.4; M-x captialize-word works incorrectly
Date: Sat, 28 Dec 2013 12:31:16 -0700

On 12/27/13 10:31 PM, Josh wrote:
> On Thu, Dec 26, 2013 at 7:30 PM, Kevin Rodgers
> <kevin.d.rodgers <at> gmail.com>  wrote:
>> On 12/23/13 11:59 AM, Josh wrote:
>>>
>>> On Mon, Dec 23, 2013 at 8:12 AM, Eli Zaretskii<eliz <at> gnu.org>   wrote:
>>>>
>>>> If you want a function that capitalizes the word at point after
>>>> looking back for its beginning, you need to code that using
>>>> thing-at-point or some such.
>>>
>>>
>>> When point is not already at the start of the word, `capitalize-word'
>>> can already do this pretty easily via `M-- M-c'.
>>
>> (defun capitalize-word-at-point ()
>>    "Capitalize the word at point (i.e. around point), without moving point."
>>    (interactive)
>>    (capitalize-word -1))
>
> Unfortunately it's not quite that simple, because calling that function
> when point is before the first character of a word will capitalize the
> preceding word instead of the word following point.  Something like
>    (defun capitalize-word-at-point ()
>      "Capitalize the word at point."
>      (interactive)
>      (save-excursion
>        (forward-word)
>        (backward-word)
>        (capitalize-word 1)))
> should suffice, though there are probably more elegant approaches.

How about:

(defun capitalize-word-at-point ()
  "Capitalize the word at point.
If point is within a word, don't move point."
  (interactive)
  (if (looking-at "\\b")
      (capitalize-word 1)
    (capitalize-word -1)))

Or:

(defadvice capitalize-word (before point-within-word activate)
  "When point is within a word, capitalize the word around point
-- but only when called interactively."
  (if (and (called-interactively-p 'any)
	   (not (looking-at "\\b")))
      (backward-word (prefix-numeric-value current-prefix-arg))))

-- 
Kevin Rodgers
Denver, Colorado, USA

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