On May 18, 1:54 am, KKde <[email protected]> wrote:
> Hi,
>
> I recently came to know about the Omnicomplete feature and I setup
> everything as mentioned.
> I setup tags file that is generated by exuberant ctags v5.7. When I
> open C file I am able to see the omnifunc is set to
> ccomplete#Complete.
> The problem is when I type any structure variable let say xyz and
> then '.' and I press CTRL-X CTRL-O then I see the error Omni
> completion pattern not found.
> I can see in my tags there is a definition for that structure.
>
> I am stuck how to resolve this!! Is there any way I can debug the Omni
> completion process to find out what the problem? Or Can you please
> tell me what I did wrong??
Here are some notes I jotted down when I got this working some time
ago. Hope it helps...
Brett Stahlman
First of all, note that with Vim 7.1, when you edit a C++ file
(e.g., .cpp or
.cc), 'omnifunc' is set to
ccomplete#Complete
Note that this is the distributed omnicomplete function for C, written
by
Bram. It is defined in the following file:
$VIMRUNTIME/autoload/ccomplete.vim
Problem: Although the C version can display class members, it won't do
so
unless you declare the class variable with "class MyClass" (as opposed
to
simply "MyClass"). This was *extremely* disconcerting until I figured
out what
was going on.
Solution: Use the omnicppcomplete plugin, by Vissale Neang. This
plugin is C++
aware, and may also be used for C. It understands inheritance, "this"
pointers, namespaces, etc...
Limitations: It's not fully functional with templates (supposedly
because of
limitations in exuberant ctags). So far, the only template limitation
I've
encountered is that "this" pointers aren't completed properly within
method
implementations.
How-it-works: The omnicppcomplete plugin, which consists of a number
of Vim
script files, implements an 'omnifunc' function (using the autoload
mechanism)
that handles completion for <C-X><C-O>, and also defines insert mode
mappings
for '.', '->', and '::', to ensure that completion is performed
automatically
when those characters are typed, without the need for the user to hit
<C-X><C-O>.
:help i_CTRL-X_CTRL-O
:help 'omnifunc'
:help complete-functions
The omnicppcomplete plugin's 'omnifunc' function first attempts to
determine
what sort of lookup needs to be performed, based upon the surrounding
context,
then performs the lookup in the tags file(s) specified in the 'tags'
option.
Important Note: For C++ completion to work properly, the tags database
must
contain some information that's not available by default: i.e., you
must run
ctags with certain options. These option values weren't even available
in
older versions of ctags. Bram added support for them in a ctags patch
around
ctags version 5.5.4. (Current version of ctags is 5.7, and the patch
is no
longer required.)
*** Command-line-invocation-of-ctags ***
ctags --c++-kinds=+p --fields=+iaS --extra=+q test1.cpp
>
> Regards,
> Sarath
--~--~---------~--~----~------------~-------~--~----~
You received this message from the "vim_use" maillist.
For more information, visit http://www.vim.org/maillist.php
-~----------~----~----~----~------~----~------~--~---
