Tools for C Programming

Tools for C Programming

[Chengqi(Lars) Song]

hi,

I've been using emacs for a long time but I've just started to write C program in emacs. I need some functions but dunno how to configure. Maybe you can give me some suggestions.

1. The folder structure is like:
   abc-+-
       |--MakeFile
       |--src-+-
              |--main.c
   after I use C-x C-f to open main.c, how to 'make' when the MakeFile is in the parent folder?

2. How to display function list?

3. How to auto-complete identifier names, struct memebers, and hints for function parameters?

4. How to jump to definition?

Thanks a lot!
lars

Re: Tools for C Programming

[Eli Zaretskii]

> Date: Sat, 7 Mar 2009 16:25:32 +0800
> From: "Chengqi(Lars) Song" <songcq@gmail.com>
> 
> 1. The folder structure is like:
>    abc-+-
>        |--MakeFile
>        |--src-+-
>               |--main.c
>    after I use C-x C-f to open main.c, how to 'make' when the MakeFile is in the parent folder?

"M-x compile RET cd .. && make RET"

> 2. How to display function list?

"M-x list-tags RET RET"
"M-x tags-apropos RET regexp RET"

But you need to create the TAGS file first, see the node "Create Tags
Table" in the Emacs manual.

> 3. How to auto-complete identifier names, struct memebers, and hints for function parameters?

I generally use M-/.  For the last feature, you will have to install
ECB, I think, which is not part of Emacs, and is quite heavy.  I
generally manage without that feature, and use the one below instead.

> 4. How to jump to definition?

"M-." (after creating TAGS, as explained above).

Re: Tools for C Programming

[Pascal J. Bourguignon]

"Chengqi(Lars) Song" <songcq@gmail.com> writes:

> hi,
>
> I've been using emacs for a long time but I've just started to write C program in emacs. I need some functions but dunno how to configure. Maybe you can give me some suggestions.
>
> 1. The folder structure is like:
>    abc-+-
>        |--MakeFile
>        |--src-+-
>               |--main.c
>
>    after I use C-x C-f to open main.c, how to 'make' when the
>    MakeFile is in the parent folder?

M-x compile RET C-a C-k make -C /home/chengqi/src/abc/Makefile all RET

next time you can just do:

M-x recompile RET


> 2. How to display function list?
>
>
> 3. How to auto-complete identifier names, struct memebers, and hints
>    for function parameters?
>
>
> 4. How to jump to definition?

ECB is the most complete package to do that. 
http://ecb.sourceforge.net/

Otherwise, there are also tools such as tags (use etags(1) to build a
TAGS index, and use M-. to jump to the definition(s) of a symbol,
M-TAB to complete a symbol, etc).


Put this in your Makefile:

tags etags:
	find $(SRCDIR) \( \( -name \[#.]\?\* -prune \) \
	                  -o -name \*.h -o -name \*.c  \
	                  -o -name \*.hh -o -name \*.hxx -o -name \*.cc -o -name \*.cxx \) \
	                  -print \
	 | while read f ; do echo $$f ; etags -a -o $(SRCDIR)/TAGS $$f ; done

M-x compile RET C-e tags RET

and then type or move after the name of a function, and type M-.

-- 
__Pascal Bourguignon__

Re: Tools for C Programming

[Pascal J. Bourguignon]

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Sat, 7 Mar 2009 16:25:32 +0800
>> From: "Chengqi(Lars) Song" <songcq@gmail.com>
>> 
>> 1. The folder structure is like:
>>    abc-+-
>>        |--MakeFile
>>        |--src-+-
>>               |--main.c
>>    after I use C-x C-f to open main.c, how to 'make' when the MakeFile is in the parent folder?
>
> "M-x compile RET cd .. && make RET"

It's better to put an absolute pathname here, so you can really M-x
recompile RET from any place.


-- 
__Pascal Bourguignon__

Re: Tools for C Programming

[Dirk-Jan C. Binnema]

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On Sat, Mar 07, 2009 at 12:03:21PM +0100, Pascal J. Bourguignon wrote:
> "Chengqi(Lars) Song" <songcq@gmail.co
> >
> > 4. How to jump to definition?
> 
> ECB is the most complete package to do that. 
> http://ecb.sourceforge.net/
> 
> Otherwise, there are also tools such as tags (use etags(1) to build a
> TAGS index, and use M-. to jump to the definition(s) of a symbol,
> M-TAB to complete a symbol, etc).
> 
> 
<snip>

I'd like to mention 'global', which is a nice alternative to etags.
See:
http://emacs-fu.blogspot.com/2009/01/navigating-through-source-code-using.html

There are some instructions too.

Best wishes,
Dirk.

-- 
------------------------------------------------------
Dirk-Jan C. Binnema          <djcb[at]djcbsoftware.nl>
             http://www.djcbsoftware.nl/ 
PGP: D09C E664 897D 7D39 5047 A178 E96A C7A1 017D DA3C
------------------------------------------------------

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Re: Tools for C Programming

[Richard Riley]

pjb@informatimago.com (Pascal J. Bourguignon) writes:

> "Chengqi(Lars) Song" <songcq@gmail.com> writes:
>
>> hi,
>>
>> I've been using emacs for a long time but I've just started to write C program in emacs. I need some functions but dunno how to configure. Maybe you can give me some suggestions.
>>
>> 1. The folder structure is like:
>>    abc-+-
>>        |--MakeFile
>>        |--src-+-
>>               |--main.c
>>
>>    after I use C-x C-f to open main.c, how to 'make' when the
>>    MakeFile is in the parent folder?
>
> M-x compile RET C-a C-k make -C /home/chengqi/src/abc/Makefile all RET
>
> next time you can just do:
>
> M-x recompile RET
>
>
>> 2. How to display function list?
>>
>>
>> 3. How to auto-complete identifier names, struct memebers, and hints
>>    for function parameters?
>>
>>
>> 4. How to jump to definition?
>
> ECB is the most complete package to do that. 
> http://ecb.sourceforge.net/
>
> Otherwise, there are also tools such as tags (use etags(1) to build a
> TAGS index, and use M-. to jump to the definition(s) of a symbol,
> M-TAB to complete a symbol, etc).
>
>
> Put this in your Makefile:
>
> tags etags:
> 	find $(SRCDIR) \( \( -name \[#.]\?\* -prune \) \
> 	                  -o -name \*.h -o -name \*.c  \
> 	                  -o -name \*.hh -o -name \*.hxx -o -name \*.cc -o -name \*.cxx \) \
> 	                  -print \
> 	 | while read f ; do echo $$f ; etags -a -o $(SRCDIR)/TAGS $$f ;
> 	done

I just have

ctags-exuberant  -e --recurse=yes --links=yes --verbose=no


>
> M-x compile RET C-e tags RET
>
> and then type or move after the name of a function, and type M-.

I suggest cscope. It's much better than tags.



-- 
 important and urgent problems of the technology of today are no longer the satisfactions of the primary needs or of archetypal wishes, but the reparation of the evils and damages by the technology of yesterday.  ~Dennis Gabor, Innovations:  Scientific, Technological and Social, 1970

Re: Tools for C Programming

[Nikolaj Schumacher]

pjb@informatimago.com (Pascal J. Bourguignon) wrote:

>> "M-x compile RET cd .. && make RET"
>
> It's better to put an absolute pathname here, so you can really M-x
> recompile RET from any place.

Unless I'm very mistaken, M-x recompile will restore the path from where
M-x compile was called.


regards,
Nikolaj Schumacher

Re: Tools for C Programming

[Richard Riley]

Richard Riley <rileyrgdev@gmail.com> writes:

> pjb@informatimago.com (Pascal J. Bourguignon) writes:
>
>> "Chengqi(Lars) Song" <songcq@gmail.com> writes:
>>
>>> hi,
>>>
>>> I've been using emacs for a long time but I've just started to write C program in emacs. I need some functions but dunno how to configure. Maybe you can give me some suggestions.
>>>
>>> 1. The folder structure is like:
>>>    abc-+-
>>>        |--MakeFile
>>>        |--src-+-
>>>               |--main.c
>>>
>>>    after I use C-x C-f to open main.c, how to 'make' when the
>>>    MakeFile is in the parent folder?
>>
>> M-x compile RET C-a C-k make -C /home/chengqi/src/abc/Makefile all RET
>>
>> next time you can just do:
>>
>> M-x recompile RET
>>
>>
>>> 2. How to display function list?
>>>
>>>
>>> 3. How to auto-complete identifier names, struct memebers, and hints
>>>    for function parameters?
>>>
>>>
>>> 4. How to jump to definition?
>>
>> ECB is the most complete package to do that. 
>> http://ecb.sourceforge.net/
>>
>> Otherwise, there are also tools such as tags (use etags(1) to build a
>> TAGS index, and use M-. to jump to the definition(s) of a symbol,
>> M-TAB to complete a symbol, etc).
>>
>>
>> Put this in your Makefile:
>>
>> tags etags:
>> 	find $(SRCDIR) \( \( -name \[#.]\?\* -prune \) \
>> 	                  -o -name \*.h -o -name \*.c  \
>> 	                  -o -name \*.hh -o -name \*.hxx -o -name \*.cc -o -name \*.cxx \) \
>> 	                  -print \
>> 	 | while read f ; do echo $$f ; etags -a -o $(SRCDIR)/TAGS $$f ;
>> 	done
>
> I just have
>
> ctags-exuberant  -e --recurse=yes --links=yes --verbose=no
>
>
>>
>> M-x compile RET C-e tags RET
>>
>> and then type or move after the name of a function, and type M-.
>
> I suggest cscope. It's much better than tags.

I just noticed from Alex Ott's blog that there is a new version of
cedet.

I was pleasantly surprised to find it "just worked" with auto-complete
when you use

init-auto-complete.el

from the emacs wiki.

C programmers should give this a go.

r.



-- 
 important and urgent problems of the technology of today are no longer the satisfactions of the primary needs or of archetypal wishes, but the reparation of the evils and damages by the technology of yesterday.  ~Dennis Gabor, Innovations:  Scientific, Technological and Social, 1970