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Re: Why I can't use `info' in emacs?


From: Hadron Quark
Subject: Re: Why I can't use `info' in emacs?
Date: Fri, 15 Dec 2006 15:13:36 +0100
User-agent: Gnus

"Robert Thorpe" <address@hidden> writes:

> Hadron Quark wrote:
>> Eli Zaretskii <address@hidden> writes:
>> >> Date: Fri, 15 Dec 2006 17:20:23 +0800
>> >> From: Ronald <address@hidden>
>> >> CC:  address@hidden
>> >> >
>> >> I'd like to see the info page for the word where the point is.
>> >> When I type ``C-h C-i" it says there is no info node for that word.
>> >> But in bash there is.
>> >
>> > What version of Emacs do you have?  I assume it's Emacs 21.x, because
>> > in that version `C-h C-i' was running the command info-lookup-symbol,
>> > and it was buggy.  In Emacs 22, info-lookup-symbol is bound to `C-h S',
>> > and it does work for me in the situation you described (point is on
>> > printf).  Please consider upgrading.
>> >
>> >> >> ``man 3 printf" ,  how to do it with info?
>> >> >
>> >> > There are several ways.  If you are sure you are looking for the C
>> >> > library function `printf', type "C-h S c-mode RET printf RET".
>> >>
>> >> I think the key sequence is too long for convenience.
>> >
>> > Don't be ridiculous, it's exactly 3 characters longer than "man 3
>> > printf".  And if you are already in a buffer whose major mode is C,
>> > and point is on `printf', all you need to type is "C-h S RET", which
>> > is only 3 keystrokes.
>>
>> How is one supposed to set this up?
>
> This works if you are on a fairly GNUy system.  One that has GNUlibc,
> such as a "linux" distribution.  If this is the case then there should
> be an info node called libc or glibc.  If that is the case then just
> pressing C-h S over a symbol documented in the manual should bring up
> that symbols info-page.
> Possible reasons why this doesn't work are:-
> * Distribution does not set Info paths correctly
> * Distribution does not ship with Glibc manual
> If either of the above are the case then complain loudly.
>
> This keystroke is C-h C-i in Emacs21 and C-h S in Emacs22.
>
>> On my emacs-snapshot printf is not a documented symbol.
>
> It's not documented by Emacs, it's documented in the Info docs that
> come with GLibc.
>
>> I have
>>
>> (defun jump-man-page ()
>>   (interactive)
>>   (manual-entry (current-word))
>>   )
>>
>> assigned to a key in cc-mode
>
> As other posters have said C-h S is better, the GNU info pages are
> better than their man-pages.
>

Thanks again Robert. First I heard of all this : when I asked before
people helped me out with the man pages!

I will dig around.

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