see variable definition by tooltips in vim - unix

I need to frequently check definitions of variables/functions. I can jump to definitions of variables/functions by ctags with gd,gD, ctrl ] etc.
But by it, I jump from my current position and lose context of current position. Is there any way I can check definitions in tool tips like we see in ctrl p ctrl n in insert mode. It would really help in quickly understand and browsing code.
Thanks,

Supposing you already have an up-to-date and reachable tags file, you can see the definition of the variable or method under your cursor in a preview window with:
<C-w>}
See :h preview-window.

Related

How to use the Edit/add new keyboard shortcuts in Jupyter

I am in the Edit Command mode Shortcuts dialog and things seem reasonable ..
But the actual behavior is a different story
When using the Option modifier (plus a non-modifier key) it just ends up printing a high-ascii character value in the add shortcut area .. and then when I refresh the page it has gone away.
I can not get Command modifier (plus a non-modifier key) to work at all. It is jus ignored.
The Control modifier (plus any key) is completely ignored.
So there is a basic usability misunderstanding here. Advice appreciated.
I added 'Ctrl-Q' as a shortcut to restart kernel and run all the cells. You can see the picture below. It is working fine. In the 'Ctrl-Q', 'Q' was just lowercase and it ran successfully.

Looking for example of how to display text in an NSWindow programmatically?

I am trying to display text in a HUD style semi-transparent window. I have got the code for the window all set up, but I have been scouring the documents for two days now and haven't come up with a way that works to actually display text in the window. Since I am using AppleScriptObjC in Script Debugger, and not Xcode, I'd rather do this programmatically and not have to switch to Xcode and use IB. (I did spend some time messing around with IB, but it is not very intuitive to be honest. So I thought I would check this form before going through the guides on how to get started using IB).
So I was given some advice to "create an NSTextField and add it to your window's contentView". So I have tried many different set ups of trying to init a NSTextField (And NSTextView), and I may have been able to get that part correct, but getting the text to actually display in the window has been a bigger challenge than I expected. I have included a code snippit of the code I am using to generate the window.
tell (NSWindow's alloc()'s ¬
initWithContentRect:{{theWidth, theHeight}, {640, 480}} ¬
styleMask:NSBorderlessWindowMask ¬
backing:NSBackingStoreBuffered ¬
defer:true)
setOpaque_(yes)
setAlphaValue_(0.5)
setBackgroundColor_(NSColor's grayColor())
setReleasedWhenClosed_(yes)
setExcludedFromWindowsMenu_(yes)
orderFrontRegardless()
delay 1
|close|()
end tell
My hope is to be able to get an NSText View in that Window in order to display some text in it. So far I haven't come close. The errors I generally get are about "unrecognized selector sent to instance". So it is pretty obvious that I am doing something wrong. I hope there is an easy way to accomplish this that I haven't yet come across.
It sounds like there isn't a target for some of the methods. In a tell statement, usually the target is implied, but sometimes AppleScript can't figure it out. You also don't get the newer method syntax, so I've had better luck just specifying the target for everything - also note that object properties can usually be set directly instead of using their setter method.
I can't tell from your snippet, but you also need to add the textView to the window's contentView, for example:
use AppleScript version "2.4" -- Yosemite (10.10) or later
use framework "Foundation"
use scripting additions
# create a text view
tell (current application's NSTextView's alloc's initWithFrame:{{20, 20}, {600, 440}})
set theTextView to it
end tell
# create a window
tell (current application's NSWindow's alloc()'s ¬
initWithContentRect:{{200, 600}, {640, 480}} ¬
styleMask:(current application's NSBorderlessWindowMask) ¬
backing:(current application's NSBackingStoreBuffered) ¬
defer:true)
set theWindow to it
set its opaque to true
set its alphaValue to 0.5
set its backgroundColor to (current application's NSColor's grayColor)
set its releasedWhenClosed to true
set its excludedFromWindowsMenu to true
end tell
theWindow's contentView's addSubview:theTextView
theTextView's setString:"this is a test"
theWindow's orderFrontRegardless()
delay 5
theWindow's |close|()

Vimperator: Follow hint in new tab and switch to it

I am trying to find a strategy in the Vimperator-logic for opening a link to a new tab and switch to it immediately.
I guess this might be a TMTOWTDI.
My first approach would be to start off with a :command sequence. Unfortunately F - Follow hint in background tab - has no equivalent in the command mode. The best solution for me would be without any change in default behaviour whatsoever.
Another approach might be to combine the default F with switching to next tag gt. This would have to include to pass the parameter for F, say 10 for the tenth link of the document. Unfortunately F10gt does open the tenth link but without switching to the newly opened tab.
A third approach does come to mind when using focus elements: ;y10 yank the destination link, :tabopen + paste clipboard content.
Any ideas of what is doable and the easiest?
This functionality exists as a mode of the hint function. Pressing ;t
will produce the desired result. If you want to map it you can also access the javascript directly.
:js hints.show("t")

How to Right click of File in Windows Explorer by AutoIt

I wish to simulate a right click on a file. This is done by opening a Windows Explorer window and then right clicking on it.
The main issue is finding the location of the file in Windows Explorer. I am currently using Autoit v3.3.8.1.
My code 's first line:
RunWait (EXPLORER.EXE /n,/e,/select,<filepath>)
The next step is the problem. Finding the coordinates of the file.
After that, right clicking at that coordinates (it seems to me at this time) is not a problem....
Some background:
OS: Windows 7 64-bit
Software Languages: C#, Autoit (for scripting)
The Autoit script is called by a code similar to that below:
Process p = new Process();
p.StartInfo.FileName = "AutoItScript.exe";
p.StartInfo.UseShellExecute = false;
p.Start();
The code is compiled into a console class file which is run at startup. The autoit script runs as the explorer window opens up.
It seems as though you are taking the wrong approach to the problem, so I'll answer what you are asking and what you should be asking.
First up though, that line of code is not valid, and is not what you want either. You want to automate the explorer window, and RunWait waits for the program to finish. Furthermore you want those items to be strings, that code would never work.
Finding the item in explorer
The explorer window is just a listview, and so you can use normal listview messages to find the coordinates of an item. This is done most simply by AutoIt's GUIListView library:
#include<GUIListView.au3>
Local $filepath = "D:\test.txt"
Local $iPid = Run("explorer.exe /n,/e,/select," & $filepath)
ProcessWait($iPid)
Sleep(1000)
Local $hList = ControlGetHandle("[CLASS:CabinetWClass]", "", "[CLASS:SysListView32; INSTANCE:1]")
Local $aClient = WinGetPos($hList)
Local $aPos = _GUICtrlListView_GetItemPosition($hList, _GUICtrlListView_GetSelectedIndices($hList))
MouseClick("Right", $aClient[0] + $aPos[0] + 4, $aClient[1] + $aPos[1] + 4)
As has already been mentioned, sending the menu key is definitely a better way than having to move the mouse.
Executing a subitem directly
This is how it should be done. Ideally you should never need an explorer window open at all, and everything can be automated in the background. This should always be what you aim to achieve, as AutoIt is more than capable in most cases. It all depends on what item you want to click. If it is one of the first few items for opening the file in various programs, then it is as simple as either:
Using ShellExecute, setting the verb parameter to whatever it is you want to do.
Checking the registry to find the exact command line used by the program. For this you will need to look under HKCR\.ext where ext is the file extension, the default value will be the name of another key in HKCR which has the actions and icon associated with the filetype. This is pretty well documented online, so google it.
If the action is not one of the program actions (so is built into explorer) then it is a little more complex. Usually the best way will be to look at task manager when you start the program and see what it runs. Other things can be found online, for example (un)zipping. Actions like copy, delete, rename, create shortcut, send to... They can all be done directly from AutoIt with the various File* functions.
With more information, it would be possible to give you more specific help.
First, you might want to look at the Microsoft Active Accessibility SDK. In particular look at this interface...
http://msdn.microsoft.com/en-us/library/accessibility.iaccessible.aspx
You can use this to walk the items in the control and find the one with the file name you are looking for and its screen location.
From there, maybe try something like this for simulating the right click.
How can I use automation to right-click with a mouse in Windows 7?
Once you have done the right click, use accessibility again to find the right option on the context menu.
Maybe there's an easier way, you should be able to cobble something together like this if you don't find one. Good luck!
Suppose I have a file named test.txt on D drive. It needs to right click for opening Context Menu. To do this, the following code should work:
Local $filepath = "D:\test.txt"
Local $iPid = Run("explorer.exe /n,/e,/select," & $filepath)
ProcessWait($iPid)
Sleep(1000)
Send('+{F10}')

Xcode4 target labelled as missing, but cannot delete it

I want to delete this red-marked target, but am unable to.
The "minus" button in the dialogue remains greyed-out, it doesn't respond to backspace or delete keys and right-clicking just brings up help options. I can drag the missing-red-marked target above or below the working black target, but it doesn't let me delete it.
This missing red target only seems to appear in this edit schemes dialogue.
In my main project/target window, I just have the one good target there.
Any ideas how to clean this up and delete this missing target?
What worked for me was to designate another executable (or none) in the existing scheme's various actions (run, test, etc.). It's the fact it's in use in the scheme's actions that prevents its deletion. I discovered this during my research for Mastering Xcode 4 (yes, shameless plug). :-)
Try creating a brand new scheme (via "New Scheme" or "Manage Schemes...") and start using that.
Once your new scheme is building properly and is set as a default, you should be able to delete the old scheme with the bogus "missing" target.
The real issue here is explained by Joar Wingfors in the Xcode-users mailing list (emphasis mine):
In the scheme sheet you cannot delete things from one tab that some
other tab depend on. In this case you probably have to delete the
target from the test tab before you can delete it from the build tab.
Or something along those lines.
I had the exact same problem. Solved by closing the xCode and externally editing the schema file to delete the bundlableResource section for the missing library. Not the safest of all methods but it works.
First delete all schemes and then generate the schemes again. Work for me .
What Joshua said, a bit tailored. Go through all various actions and change the missing executable to an existing one.
In your case, go to 'Profile' and switch to the new app. Same if you encounter this in 'Test' tab.

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