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A vim plugin for working with the Processing programming language.
VimL Python
branch: master


A plugin to make it easier to work with the Processing language in vim. It is originally based on sophacles/vim-processing, which was in turn an extension of vim script #2115.

This is my first foray into the world of vim scripting. If you spot anything that's bad practice, or have any feedback at all, I'd love to hear from you!

Please note that this plugin has currently only been tested on OS X. I would love to hear from you if you use this plugin (successfully or otherwise) on Windows or Linux.


  • Syntax highlighting
  • Documentation lookup
  • Run sketches from within vim


If you're not using either Vundle or Pathogen, I highly recommend that you check them out.

Install with Vundle

Add this to your vimrc in the appropriate place:

Bundle "willpragnell/vim-reprocessed"

Then install:

:so ~/.vimrc

Install with Pathogen

Just clone it:

cd ~/.vim/bundle
git clone

Looking up documentation

This feature requires that your vim has been compliled with python support. Simply move the cursor to the keyword you would like to look up and hit 'K' in normal mode. Note that words followed by an opening paren '(' are treated as functions, so frameRate() and frameRate will go to different pages in the documentation.

By default, reprocessed will try to look up documentation online. However, you can configure it to access local documentation by adding the following line to your .vimrc:

let processing_doc_path="/path/to/processing/docs/on/your/machine"

Of course, you'll want to replace the path with the actual path on your machine. In some cases, I have seen this fail to work on OS X when attempting to link to the documentation within the application bundle. The solution is to make a copy of that documentation elsewhere on the filesystem.

Running sketches

This feature requires the processing-java command to be available in your PATH. On Linux & Windows you'll need to add it manually, but on OS X you should be able to install this from within See the Processing wiki for more information.

WARNING: If you have a directory inside your sketch directory called "bin" then it will be destroyed when you run your sketch using this method unless you have explicitly configured reprocessed to use a different path. If you want to specify the output directory for processing-java to some path other than "bin", then you can do so with one the following lines in your .vimrc:

let processing_output_dir="path/relative/to/sketch"

let processing_output_dir="/absolute/path"

Paths without a leading / will be set relative to your sketch directory, in contrast to paths that start wtih a / which will be read as absolute paths.

WARNING: reprocessed will run processing-java with the --force option, so this directory will get nuked every time you run your sketch. Do not set this path to a directory which contains files you care about. You have been warned!

One other requirement is that your directory structure follow the pattern that Processing expects: your sketch file should have the same name as the directory in which it exists. If you created your sketch using the Processing app then this is unlikely to be an issue, but it's something to be aware of if you're creating new sketches in vim.

You can run your sketchs normally by hitting <leader>r, or run them full screen with <leader>p. These commands will save the file before running it. I highly recommend that you use version control to manage your sketches so that you don't lose any work. If you wish to disable or reconfigure these keyboard mappings, please see the section below.

Key mappings

By default, reprocessed will map <leader>r and <leader>p to run your sketch. If you wish to disable these mappings because they conflict with your own custom mappings, add the following line to your .vimrc:

let g:reprocessed_map_keys = 0

If you wish to map some other keys to run sketches, the functions you need to map to are :RunCurrentSketch and :PresentCurrentSketch. So, for example, you may want something like the following:

nnoremap <leader>1 :RunCurrentSketch<cr>
nnoremap <leader>2 :PresentCurrentSketch<cr>

Check out the vim help if you want to know about how mappings work or how to make these mappings only for .pde files.


  • Cleanup and update syntax file for Processing 2
  • Dash integration (possibly using dash.vim)
  • Support for running in javascript mode
  • Add license
  • Proper help/documentation
  • Automatic bracket/curly-brace insertion?
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