Configuring solarized colorscheme in gnome terminal, tmux and vim

color-schemetmuxvim

I'm struggling to make the Solarized colorscheme correctly working on an Ubuntu 13.10 machine inside Vim inside tmux inside the gnome-terminal.

I've started configuring gnome-terminal using the script on this repository and it displays the colors correctly. The same goes if I run Vim (with the official Solarized colorscheme) inside the terminal, without tmux.

Then I tried to configure tmux using this. It happens that when I run Vim the syntax highlight for php or javascript code is wrong or, at least, different from the one I see running Vim without tmux. I've tried also running tmux as tmux -2. The colors are different, but still the syntax highlight is not correct.

Best Answer

I tested it out and got it working in the following way:

Install gnome solarized colorscheme. You can get it from https://github.com/sigurdga/gnome-terminal-colors-solarized.
Install solarized colorscheme for vim. You can get it from https://github.com/altercation/vim-colors-solarized. In .vimrc you should add following settings:
```
set t_Co=256
set background=dark
colorscheme solarized
```
Set correct TERM variable by adding following line to your .bashrc/.zshrc
```
export TERM=screen-256color-bce
```
Run gnome-terminal, tmux, vim and profit.

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Tab key == 4 spaces and auto-indent after curly braces in Vim

As has been pointed out in a couple of other answers, the preferred method now is NOT to use smartindent, but instead use the following (in your .vimrc):

filetype plugin indent on
" show existing tab with 4 spaces width
set tabstop=4
" when indenting with '>', use 4 spaces width
set shiftwidth=4
" On pressing tab, insert 4 spaces
set expandtab

In your [.vimrc:][1] file:
set smartindent set tabstop=4 set shiftwidth=4 set expandtab

The help files take a bit of time to get used to, but the more you read, the better Vim gets:

:help smartindent

Even better, you can embed these settings in your source for portability:

:help auto-setting

To see your current settings:

:set all

As graywh points out in the comments, smartindent has been replaced by cindent which "Works more cleverly", although still mainly for languages with C-like syntax:

:help C-indenting

The difference between the remap, noremap, nnoremap and vnoremap mapping commands in Vim

remap is an option that makes mappings work recursively. By default it is on and I'd recommend you leave it that way. The rest are mapping commands, described below:

:map and :noremap are recursive and non-recursive versions of the various mapping commands. For example, if we run:

:map j gg           (moves cursor to first line)
:map Q j            (moves cursor to first line)
:noremap W j        (moves cursor down one line)

Then:

j will be mapped to gg.
Q will also be mapped to gg, because j will be expanded for the recursive mapping.
W will be mapped to j (and not to gg) because j will not be expanded for the non-recursive mapping.

Now remember that Vim is a modal editor. It has a normal mode, visual mode and other modes.

For each of these sets of mappings, there is a mapping that works in normal, visual, select and operator modes (:map and :noremap), one that works in normal mode (:nmap and :nnoremap), one in visual mode (:vmap and :vnoremap) and so on.

For more guidance on this, see:

:help :map
:help :noremap
:help recursive_mapping
:help :map-modes

Best Answer

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Tab key == 4 spaces and auto-indent after curly braces in Vim

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