vimsomnia

May I ask what keys exactly I have to press for the combination < c - _ > b?
I think I'm a slightly experienced Vim user, but I've never seen this combination nor does the Vim help file or Google know anything about it.

Basically means pressing the control and the "_"-key. Unfortunately, for different operating systems, GUIs, and different keyboards layouts this requires pressing different keys.

If you cannot find out which combination is , I'd suggest to change the default tcomment map leader (the default is '') by setting the variable g:tcommentMapLeader1 in your vimrc file.

HTH

Can't toggle comments:

<!--       <xmlnode value="true" />           -->

@coresh: If the filetype is set to xml, the above example works perfectly well. What happens if you press gcc?

Regarding to above, seems to be a local/temporary issue. Fixed by: restarting vim.
After un-commenting source code in example of above, unnecessary spaces located after tag "/>...........$"

PS: unnecessary trailing white space, which is usually deleted by command: ":%s/\s\+$//"

Using the code example here : https://gist.github.com/1506036

I experience a bug which duplicate '\' each time I toogle Comment.

I place the cursor on the desired line select visually the line then I type :TComment

and my line which previously was printf("toto%d\n"); becomes printf("toto%d\\\\\n");

@totouser That was a problem of an older version of the plugin that should have been fixed in version 1.03. If the problem persists with the current version, please file a bug report at https://github.com/tomtom/tcomment_vim/issues

Thanks I was using an another repository on Github it's fixed now. And will use github Issues for my next problem.

test comment

Okay