From: Xue Fuqiao <xfq.free@gmail.com>
To: Kevin Rodgers <kevin.d.rodgers@gmail.com>
Cc: help-gnu-emacs <help-gnu-emacs@gnu.org>
Subject: Re: About `char' in momentary-string-display
Date: Fri, 18 Oct 2013 15:44:17 +0800 [thread overview]
Message-ID: <CAAF+z6FvfRrGgXpQbbMev+Geo8R1d9o4kWZEUD8zzGyB9Evstw@mail.gmail.com> (raw)
In-Reply-To: <l3onvq$ram$1@ger.gmane.org>
On Thu, Oct 17, 2013 at 9:17 PM, Kevin Rodgers
<kevin.d.rodgers@gmail.com> wrote:
> On 10/17/13 7:06 AM, Xue Fuqiao wrote:
>> In (info "(elisp) Temporary Displays"):
>>
>> -- Function: momentary-string-display string position&optional char
>>
>> message
>> [...]
>> Thus, typing CHAR will simply remove the string from the display,
>> while typing (say) `C-f' will remove the string from the display
>> and later (presumably) move point forward. The argument CHAR is a
>> space by default.
>>
>> I tried evaluating ‘(momentary-string-display "foo" 1)’ in the *scratch*
>> buffer and typed ‘C-f’, but the point didn't move forward. Instead, a
>> ‘[6]’ is echoed in the *Messages* buffer. I don't know what the ‘[6]’
>> stands for, but the codepoint for ^F is #x6 (ACK). So I think there may
>> be a link between them.
>>
>> But anyway, why didn't the point move forward (the point wasn't at eob)?
>> Can anyone point me in the right direction?
>
> CHAR defaults to SPC, but you typed C-f. What happens if you type SPC?
Thanks for your attention. If I type SPC, Emacs (as expected) ignores
it. But what I'm asking is about the case when CHAR ≠ the-character-i-press.
> What happens if you specify C-f as CHAR:
> (momentary-string-display "foo" 1 ?\C-f)
It doesn't make sense, I think. Emacs will simply remove "foo" from the
display, and ignore the "C-f". It is the same as pressing SPC with
‘(momentary-string-display "foo" 1)’.
--
Best regards, Xue Fuqiao.
http://www.gnu.org/software/emacs/
next prev parent reply other threads:[~2013-10-18 7:44 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-17 13:06 About `char' in momentary-string-display Xue Fuqiao
2013-10-17 13:17 ` Kevin Rodgers
2013-10-18 7:44 ` Xue Fuqiao [this message]
2013-10-17 20:12 ` Kai Großjohann
2013-10-18 7:51 ` Xue Fuqiao
2013-10-18 22:19 ` Kai Großjohann
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