Where every variable is a different color, an idea popularized by Evan Brooks' blog post.
Vundle or Neobundle:
Plugin 'jaxbot/semantic-highlight.vim'
Pathogen:
git clone https://github.com/jaxbot/semantic-highlight.vim.git
In a file, run :SemanticHighlight
to convert variables into colors. Run :SemanticHighlightRevert
to revert.
You can also map :SemanticHighlightToggle
to a shortcut to toggle the effect on and off:
:nnoremap <Leader>s :SemanticHighlightToggle<cr>
Set g:semanticTermColors
and/or g:semanticGUIColors
to a list of colors, then run RebuildSemanticColors
to flush the cache. The color lists look like:
let s:semanticGUIColors = [ '#72d572', '#c5e1a5', '#e6ee9c', '#fff59d', '#ffe082', '#ffcc80', '#ffab91', '#bcaaa4', '#b0bec5', '#ffa726', '#ff8a65', '#f9bdbb', '#f9bdbb', '#f8bbd0', '#e1bee7', '#d1c4e9', '#ffe0b2', '#c5cae9', '#d0d9ff', '#b3e5fc', '#b2ebf2', '#b2dfdb', '#a3e9a4', '#dcedc8' , '#f0f4c3', '#ffb74d' ]
or
let g:semanticTermColors = [28,1,2,3,4,5,6,7,25,9,10,34,12,13,14,15,16,125,124,19]
Either list can also be set in your vimrc
This plugin is language agnostic, meaning it will work on any language with words. However, some languages have been tweaked by default to disable highlighting of language keywords.
Current language support with keyword blacklists:
- C
- C++
- CoffeeScript
- Go
- Java
- JavaScript
- PHP
- Python
- Ruby
- Rust
- Scala
- TypeScript
This can be customized locally by populating g:semanticBlacklistOverride
like so:
let g:semanticBlacklistOverride = {
\ 'javascript': [
\ 'setTimeout',
\ 'break',
\ 'dance',
\ ]
\ }
If you want to add language support to the plugin itself, feel free to edit autoload/blacklist.vim and submit a pull request with your changes. Help is appreciated!
Some languages, such as PHP and JavaScript, allow special characters to be used in variable names.
Consider the following:
var $someObject = '1231';
var someObject = 1231;
Without the autocommand
outlined below, only the someObject
portion of the variable would be semantically highlighted, and highlighted the same colour as the $
-free variable. To have the preceding $
included in the semantic highlight, use the following snippet in your vimrc:
autocmd FileType javascript setlocal iskeyword+=$
Big thanks to John Leimon, whose Semantic C/C++ Vimscript was inspirational in the construction of this one.
Also big thanks to everyone who submitted bugs, suggestions, and pull requests!
I'm Jonathan. I like to hack around with Vim, Node.js, embedded hardware, and Glass. If any of that sounds interesting, follow me!