Re: [Ctags] Problems with Objective C support for ctags?

[Andrew R. <an...@ae...>]

I posted patches a while ago for ctags obj-c support.  It isn't
perfect but it does a pretty decent job.  There is one bug that
someone has pointed out to me with functions that use prototypes in
their arguments; i.e. something like this

void copy_object(id <NSCopying>object);

doesn't get parsed correctly, but other than that it picks up all the
objective-c methods, classes, prototypes, etc..  I haven't gotten
around to fixing that yet...

If you have access to git, you can clone it with:

git clone git://git.aeruder.net/ctags-objc.git

Otherwise you can get a tarball from:

http://gitweb.aeruder.net/?p=ctags-objc.git;a=snapshot;h=HEAD;sf=tgz

- Andy



On Fri, Mar 6, 2009 at 10:14 PM, Steven Arnold
<st...@ar...> wrote:
> It seems like it's quite an undertaking to support a new language, not
> a mere matter of putting together a list of regexes....from browsing
> the source, it seems someone went to great lengths to set up each
> language.  Is there a how-to guide or any documentation on how this
> process can be done for a new language?
>
> Also, I am so-so with C but for example I can probably parse an
> Objective-C file using Ruby or Python and emit a validly-formatted
> file.  How hard do you think this would be to integrate with the ctags
> project?  I guess we'd need a hook that reached out to other programs
> to parse certain file extensions?  It would be a natural way to
> introduce a plugin architecture to ctags.
>
> steven
>
>
> On Mar 6, 2009, at 11:15 PM, Elliott Hughes wrote:
>
>> objective c is not supported.
>>
>> --elliott
>>
>> On Fri, March 6, 2009 19:54, Steven D.Arnold wrote:
>>> I do not think this was mailed properly last time, so if you are
>>> seeing this twice, my apologies.
>>>
>>> I have newly installed ctags 5.7 from source, but it does not seem to
>>> parse my Objective-C files.  Does anyone know why I would get these
>>> results?  It does seem to parse, e.g., Java files just fine.
>>> Here's a
>>> simple ObjC file:
>>>
>>> #import "TDListCell.h"
>>>
>>>
>>> static UIImage *starImage = nil; @implementation TDListCell
>>> @synthesize title, blurb, permanent;
>>> - (id)initWithFrame:(CGRect)frame reuseIdentifier:(NSString
>>> *)reuseIdentifier {
>>> [etc]
>>> return self; }
>>>
>>>
>>> - (void)layoutSubviews {
>>> CGRect bounds = [self bounds];
>>> [etc]
>>> }
>>>
>>>
>>>
>>> - (void)setSelected:(BOOL)selected animated:(BOOL)animated {
>>> [super setSelected:selected animated:animated];
>>> }
>>>
>>>
>>>
>>> - (void)dealloc {
>>> [super dealloc];
>>> }
>>>
>>>
>>> @end
>>>
>>>
>>> The tags file from ctags is this:
>>>
>>>
>>> [ 08:09 PM (7) omega:thoth ~/Source/learning/iPhone/BNR/
>>> PictureSlider/
>>> Classes ] > ctags PictureSliderAppDelegate.m
>>> [ 08:09 PM (8) omega:thoth ~/Source/learning/iPhone/BNR/
>>> PictureSlider/
>>> Classes ] > cat tags
>>> !_TAG_FILE_FORMAT    2       /extended format; --format=1 will not append ;"
>>> to
>>> lines/ !_TAG_FILE_SORTED     1       /0=unsorted, 1=sorted, 2=foldcase/
>>> !_TAG_PROGRAM_AUTHOR Darren Hiebert  /dhi...@us.../
>>> !_TAG_PROGRAM_NAME   Exuberant Ctags //
>>> !_TAG_PROGRAM_URL    http://ctags.sourceforge.net    /official site/
>>> !_TAG_PROGRAM_VERSION        5.7     //
>>>
>>>
>>> My editor of choice, jEdit, can't make anything useful from this.
>>>
>>>
>>> I suspect I am missing something simple in my usage of ctags.  I
>>> understand it is supposed to support Objective C.  What am I missing?
>>>
>>> Thanks,
>>> steven
>>>
>>>
>>>
>>> -------------------------------------------------------------------------
>>> -----
>>> Open Source Business Conference (OSBC), March 24-25, 2009, San
>>> Francisco,
>>> CA
>>> -OSBC tackles the biggest issue in open source: Open Sourcing the
>>> Enterprise
>>> -Strategies to boost innovation and cut costs with open source
>>> participation -Receive a $600 discount off the registration fee
>>> with the
>>> source code: SFAD http://p.sf.net/sfu/XcvMzF8H
>>> _______________________________________________
>>> Ctags-users mailing list
>>> Cta...@li...
>>> https://lists.sourceforge.net/lists/listinfo/ctags-users
>>>
>>>
>>
>>
>> --
>> Elliott Hughes, http://www.jessies.org/~enh/
>>
>>
>>
>> ------------------------------------------------------------------------------
>> Open Source Business Conference (OSBC), March 24-25, 2009, San
>> Francisco, CA
>> -OSBC tackles the biggest issue in open source: Open Sourcing the
>> Enterprise
>> -Strategies to boost innovation and cut costs with open source
>> participation
>> -Receive a $600 discount off the registration fee with the source
>> code: SFAD
>> http://p.sf.net/sfu/XcvMzF8H
>> _______________________________________________
>> Ctags-users mailing list
>> Cta...@li...
>> https://lists.sourceforge.net/lists/listinfo/ctags-users
>
>
> ------------------------------------------------------------------------------
> Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA
> -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise
> -Strategies to boost innovation and cut costs with open source participation
> -Receive a $600 discount off the registration fee with the source code: SFAD
> http://p.sf.net/sfu/XcvMzF8H
> _______________________________________________
> Ctags-users mailing list
> Cta...@li...
> https://lists.sourceforge.net/lists/listinfo/ctags-users
>



-- 
Andrew Ruder <an...@ae...>
http://www.aeruder.net