Pass filename and current line to shell script

shellvim

I would like to pass the file name and the current line number where my cursor is at, separated by colon, to an external shell script. For example, if am editing the file "foo.c" and I am currently on line 77, I'd like to call my script from vim with the argument "foo.c:77".

Best Answer

An alternative to Karalos's answer:

:call system('echo ' . expand('%') . ':' . line('.'))

Of course, you replace "echo" with the name of your shell script.

The advantage of system() is that it returns the output of the command run, so you can capture it for further use in a Vim script if you need to.

You may need to look at the modifiers in :help expand() if you need to qualify/modify the filename in any way.

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Linux – How to add a command in vim editor

Yes. Vim documentation, section 40.2, Command-line mappings:

The Vim editor enables you to define your own commands. You execute these commands just like any other Command-line mode command. To define a command, use the ":command" command, as follows:

:command DeleteFirst 1delete

Now when you execute the command ":DeleteFirst" Vim executes ":1delete", which deletes the first line.

Note: User-defined commands must start with a capital letter. You cannot use ":X", ":Next" and ":Print". The underscore cannot be used! You can use digits, but this is discouraged.

Put that line in your ~/.vimrc (minus the inital : of course) and it will be defined every time you start vim. Also, use %:t to make reference to the file being edited (writing ! gcc %:t gets replaced by ! gcc foo.c).

If you'd only like it to be defined for the one file, or for certain files, you want an autocommand.

How to make vim show the current class and method I’m editing

This will work if you install both the airline and tagbar plugins. These two plugins integrate automatically and you'll get the current function displayed in the status bar. If you want to have the full object hierarchy (e.g. class + method), you'll have to configure that in your .vimrc:

let g:airline#extensions#tagbar#flags = 'f'  " show full tag hierarchy

You might have to setup the tags file for tagbar to identify the current code position, if you are not using ctags, yet. If you don't know about that yet, here's a short intro to ctags.

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Linux – How to add a command in vim editor

How to make vim show the current class and method I’m editing

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