why cscope does not show complete result list? - vim

I run a cscope command cs f s free and get one of the 21 results but I can not see the whole results list, how to fix it?

I faced the similar issues while running :cs (vim cscope) commands from vim. The entire cscope list is actually in quickfix window.
To see the equickfix window (containing list), run :cope or :cw command inside from vim.

Remove option in cscopequickfix
:set cscopequickfix=
or comment the line in .vimrc containing cscopequickfix

Related

How to open a terminal in new tab from VIM?

When I'm working with lets say 4 files, all are open in tabs(VIM). I want to save the changes and compile it without having to close the tabs, i.e I want to open a terminal in new tab along with the existing 4?
How should I do this in VIM?
:tab ter
opens a terminal in a new tab instead of opening it in a new window as :ter does. You can also use the equivalent, longer :tab terminal form.
Credits to user wolloda in this Reddit post.
Extra information
Terminating the shell with Ctrl-d or exit closes the terminal buffer.
Ctrl-w N or Ctrl-\ Ctrl-n put the buffer in the terminal-normal mode:
Keystrokes are not forwarded to the shell, but are used by Vim as in a normal buffer
(although the shell job is still running). Then you can use gt to change tabs,
type Ex commands such as :ls, etc. To bring the terminal buffer back to life,
i, a, ...
If you are going to map this, I recommend using :tab ter++kill=hup, so that when you :qa the terminal job does not prevent Vim from quitting.
And this is the signal normal terminal emulators send to its jobs when closed anyway.
For terminal mode mappings, use tnoremap, for example
tnoremap <S-Tab> <C-W>:tabprevious<CR>
tnoremap <C-N> <C-W>N
More information on :help :terminal and :help :tab.
In 2019, vim now has a Terminal mode.
:help terminal
For example, you can use it like this.
# go to terminal-job mode
:terminal
# go to terminal-normal mode
ctrl-w N
# go back to terminal-job mode
i
A more vim like way of doing this would be to use :make
:make
:make will execute the 'makeprg'. It defaults to make which is great of C projects
After running :make the quickfix list will be contain any errors.
Set your compiler via the :compiler command.
Extra parameter can be passed like so :make foo-command
Current filename can be represented by %. e.g. :make %
quickfix list
Use :cnext and :cprev to move between your errors.
:copen to open up the quickfix list in a window (:cclose to close)
:cwindow to open quickfix list window only if there are errors
May want to use better mappings for :cnext and friends. I suggest Tim Pope's unimpaired plugin
Alternatives and Plugins
Just use <c-z> to suspend vim and run your build system. (Cons: loose out on the quickfix list)
Use :! to compile. (Same cons as suspending) e.g. :!make
Syntastic is a syntax checking system that checks files on save
Dispatch can be used to run things in the background. Great for test suites
As #brettanomyces mentioned you may want to consider terminal multiplexers like tmux or screen.
SingleComplile tries and takes some of the work out of using :make
Conclusion
If you are just starting out I would suggest you learn how to use :make and the quickfix list. There is a nice Vimcast episode that intros the quickfix list: Search multiple files with :vimgrep. Additionally Syntastic is a great way to get up and running with linters quickly.
Aside about tabs
Vim's tabs are not like most text editors tab. They are more like viewports into a group of windows/splits. Additionally, Vim is buffer centric, not tab centric like most editors. Therefore using features like the quickfix list is often easier without tabs (See :h 'switchbuf if you must use tabs). Vim's tabs often get in the way of using a splits as there are better window and buffer navigation commands available. I personally have many files open (sometimes 100+) use no tabs and use on average 1-2 splits without any issue. Bottom line: Learn to use buffers effectively.
For more help see the following:
:h :make
:h 'makeprg
:h quickfix
:h :cnext
:h :cope
Vim 8.1 now has a built in terminal that can be opened with the :term command. This provides much more complete integration with the rest of the Vim features.
Original Answer:
I would suggest looking at tmux or screen. I use tmux myself and along with vim-tmux-navigator moving between the terminal and vim is very easy.
For anyone using NeoVim:
The highest voted answer uses :tab ter. This doesn't work on NeoVim (at least for me). However, it's still fairly simple:
:tabe term://bash
tabe is open a new tab and edit file.
term:// is a NeoVim way of opening a terminal
bash is the kind of shell you want to use (e.g. I use zsh, so my command is actually :tabe term://zsh)
Some helpful commands that I created:
" open terminal
if has('nvim')
command Terminal vsplit term://zsh
command TerminalTab tabe term://zsh
else
command Terminal vert term
command TerminalTab tab ter
endif
Another way
Ctrl-w :
That gets me to the command line, then one can enter tablast tabnext or tabprevious
or the short versions tabl, tabn, tabp
Or this way:
Ctrl-w gt and Ctrl-w gT
(Next tab and Previous Tab)
Or Ctrl-w Number gt (for a specific tab)
That works too.

How can I get cscope results to appear in a split window in gvim7?

I have tried the tutorial here: Vim/Cscope tutorial. After changing the #'s in the cscope_maps.vim file to SPACE I got Ctrl-SPACE s to launch cscope in gVim. However, it takes over the whole window rather than splitting the window for the cscope info.
I then tried as suggested in the comments to the cscope_maps.vim file changing nmap <C-SPACE>s :scs find s <C-R>=expand("<cword>")<CR><CR> to nmap <C-SPACE>s <C-W><C-S> :cs find s <C-R>=expand("<cword>")<CR><CR> because it appears that my gVim does nto support the :scs command. However, this still displays the cscope info in a full window, blocking out my code. When I exit the cscope interface, I return to two split screens.
Any help on how to craft a command in gVim 7.3 that will launch cscope in a split window?
scscope find c foo does what it's supposed to do: display a list of functions calling foo in the command line and open the chosen one in an horizontal split.
But that is not what you want, is it?
The list of possible targets is always displayed in the command line which is expanded as needed: it can't be displayed in a window at all.
That said, you can use the quickfix window to display the list instead of the command line, see :help cscope-options.

How to open vim command output in separate tab/window?

I'm using vim-rubytest to execute tests from within MacVim.
This prints output in vim's command output window.
The problems are that this output is not scrollable or disappears after i switch to editor.
Is it possible to send this output to separate tab/window in Vim?
I don't use vim-rubytest plugin but looking at the documentation it seems to me that by default vim-rubytest will put the contents into the quickfix list. To open the quickfix window issue the following command:
:copen
You can navigate the quickfix list via :cnext and :cprevious.
I belive the quickfix approach to be the preferred way, but to answer you question you can redirect the output into a register and then paste into a new buffer.
:redir #"
Then execute <leader>T. watch it all go by. Then end the redirection and create a new buffer with the contents inside.
:redir END
:new|pu|0d_
For more help see
:h quickfix
:h :cnext
:h :redir
:h :new
:h :put
:h :delete
The default on vim-rubytest is for let g:rubytest_in_quickfix = 0 this will execute everything on the terminal and echo the results.
In order to "open in a new window" you should set
let g:rubytest_in_quickfix = 1 and then the output will be run and applied to the quickfix. This will open up a separate quickfix window that you can use see all the failures and allow you to jump to the file.
There is an issue with the usage of quickfix that I have filed on github (Reference) that doesn't allow you to open the first error. In the issue I posted a possible fix and have my own fork with it applied + some other minor adjustments to make using quickfix more ideal in my own TDD workflow.

How do you use vim's quickfix feature?

I'm a pretty new Vim user and I've found that its learning curve is quite steep (at least for me). I just installed this vim script for JavaScriptLint error checking, which shows errors in vim's quickfix window once I save a buffer.
However, I don't know what to do next.. How do I 'scroll' through all the errors? How do I close the quickfix 'window'? How do I get it to check for errors after I've made changes to my code?
I've looked at the vim quickfix docs but the amount of commands are overwhelming and I can't seem to find what I want. Any help would be appreciated.
A side question: is there any way to have javascriptlint check for js errors for code residing in a .html file?
There are a lot of commands for quickfix as you have said, but I tend to find I only use a small subset of them:
:copen " Open the quickfix window
:ccl " Close it
:cw " Open it if there are "errors", close it otherwise (some people prefer this)
:cn " Go to the next error in the window
:cp " Go to the previous error in the window
:cnf " Go to the first error in the next file
:.cc " Go to error under cursor (if cursor is in quickfix window)
I tend to use this with :make and :vimgrep, so I can't comment on the Javascript lint checker, but this should give you something to get started.
Regarding the general use of JavascriptLint, I'm not a javascript programmer, but it looks like the script exposes a function called "JavascriptLint", so if you want to call it manually, you can use :call JavascriptLint(). However, it works on the disk copy of the file, so it'll have to be saved first. If (and only if) the command line jsl works on html files, you should be able to use :call JavascriptLint() on an html file to check the internal javascript. You could also do:
autocmd BufWritePost,FileWritePost *.html call JavascriptLint()
to automate it. If jsl doesn't support html files, then (short of patching the application or asking the author to change it), it's probably a lost cause...
The easiest way to navigate the quickfix list (or the location list, for that matter) is the unimpaired plugin.
Once the quickfix window is populated, [q and ]q go forward and back (respectively) in the quickfix list. [Q and ]Q go to the beginning and end (which is especially handy if you only have one item in the list; this makes vim complain about [q and ]q). So the workflow is:
Run whatever command populates the quickfix list
Type [Q to go to the first item
Scroll through subsequent items (if any) with [q and ]q
If you're using Syntastic, you'll get the location list instead of the quickfix list. No problem; just use [L, ]L, [l, and ]l in the same way.
unimpaired has loads of other handy mappings too -- [e and ]e "bubble" lines up and down, [<Space> and ]<Space> insert blank lines above and below, etc. I was surprised nobody mentioned it here before; that's probably because it didn't exist until January 2010, though the question was asked in 2009.
Put the following two lines in your .vimrc file:
map <C-j> :cn<CR>
map <C-k> :cp<CR>
Now you can navigate through the errors using ctrl-j and ctrl-k, which mimics the standard down and up motion commands j and k.
You can also use :cc 2 (or any other number) to jump to, in this case, the second error in the quickfix window. Navigating with :cn, :cc 4, etc will put the cursor on the line in question.
In addition to #DrAl's great answer about how to open and close the quick window and navigate between entries, I made an image to show some of the other quick fix navigation commands.
Each group of 3 files below represents a set of quickfix results, e.g. from a vimgrep. cnewer and colder are for going through historic result sets.
Maybe this option didn't exist when this question was written (or maybe I'm embarrassing myself because there's something in my .vimrc that makes this happen) but when I get a Quickfix List, I just navigate it with j and k then hit <CR> (i.e. the Enter key) to jump to that place in the file.
Then, to get back to the Quickfix List I type Ctrl+W j for "move down a window" and I'm back.
Finally, when I'm done, I just type :q, like I would to close any normal window.
The best-practice way of integrating JavaScript syntax-checking is using the Syntastic Vim plugin, which is using Vim's location-list (which is parallel to the quickfix) window.
I've written answers for this question and this question explaining how to do it, plus also how to get source-code browsing / tag-list for Vim using the community-driven jshint.com (which is way better than JSLint IMO) and Mozilla's DoctorJS (formerly jsctags).
the quickfix window is operated mostly like any other vim window: j down a line, k up a line, :cn to jump to the next error/warning, etc.
experiment!
Although this requires > Vim 7.4.858, the cdo (or ldo for location lists) command allows updating a non-contiguous set of lines in a way you could once only do with sed:
:vimgrep /re/ %:p
:cdo! norm #a
# or
:cdo! s/re/repl/
The above shows running a recorded macro or a simple search and replace. Missing seems to a be a way to pipe through and external command as you can with :range! command

Hide all (not)matching lines in Vim

Is it possible to show/hide all matching lines in vi or Vim? Not highlight but just show only those lines.
For example I have a text with word the word ERROR. How do I make it show only lines containing ERROR and how to show only lines without ERROR?
Is there a solution without deleting all matching lines and then just undoing it?
Do you know about the :global command? Does this do what you want?
:g/ERROR
and for the opposite:
:g!/Error
or equivalently:
:v/Error
Another approach depending on your use case would be using vimgrep and its results in quickfix. You can do the following:
:vimgrep pattern % will search the current file and take you to the first search result. More importantly it also puts the results in the "quickfix list".
:copen will then open the quickfix list in a separate quickfix-window. So you will have a separate window with all lines from your last vimgrep. Inside the quickfix-window you can then hit Enter or double-click on a line to jump to the corresponding line in your original file.
:colder will let you go back to older quickfix lists (older vimgrep results). And :cnewer goes forward to newer search results.
Note that the quickfix list is also updated when running :make (which is why its called quickfix for fixing errors). Because of this there also is an alterative to the quickfix list called the "location list". To use it instead you use :lvimgrep, then use l-prefixed commands rather than c-prefixed commands - :lopen, :lolder, :lnewer.
There is, of course, a lot more you can do. See :help quickfix for more info.
PS, You said you didn't want an approach that deletes lines and then undoing them. But since you marked g/ERRORas the answer I thought I would point out a quick and dirty way is to do g!/ERROR/d. You can then easily undo it using u. Also FYI, you can do :set hlsearch to highlight patterns matched with :g commands.
You can use
:g/ERROR/
to print all the lines with ERROR
Also there is a Vim plugin which I saw many times but didn't use:
foldsearch : fold away lines that don't match a given pattern
The best way to do this is->
:vimgrep /something/g % | copen
This will open the list of matches for your keyword and also will show only the matched lines in quickfix window.
Replace % with path to file if not considering the current file.
:vimgrep /something/g % | copen works awesome. Also :g/<pattern>/d can be used to delete lines with the pattern
in case you happen to use fzf you could use:
:Lines in all open files
:BLines only in open buffer
:Rg [pattern] using ripgrep
You probably mean command in less vi vim
& /pattern/
which shows lines containing /pattern/ (like grep).
Some hackish dirty way to do this:
:w (save)
ggdG (deletes everything)
:.!grep something % (replace current line with grep output)

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