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investigate.vim

A plugin for looking documentation on the word under the cursor. You can choose to open it in a browser, with Dash on OS X, or with an arbitrary shell command.

Example

Web

Setup

By default investigate is mapped to gK. If you want to set up your own mapping you should use something like this:

nnoremap <leader>K :call investigate#Investigate('n')<CR>
vnoremap <leader>K :call investigate#Investigate('v')<CR>

With this mapping, using <leader>K when your cursor is on a specific word will open its documentation. The help file has tons of documentation on configuration. Here are some of the basic options.

Configuration

Dash

If you want to open everything in Dash you need to set:

let g:investigate_use_dash=1

This value is ignored unless you're on OS X. If you want to use Dash conditionally based off the current filetype you can set something like:

let g:investigate_use_dash_for_ruby=1

If you want to use something else, like a URL for a single type you'd want to use this which will override the global Dash setting:

let g:investigate_use_url_for_ruby=1

If you want to use a different keyword in Dash for a given language you can set it by using:

let g:investigate_dash_for_ruby="rails"

This would set all Ruby files to open in the Rails documentation. Note: If you're using a Dash 1.9.3 or newer you don't have to set this for docsets that you have renamed.

URLs

If you don't like the website I chose as the default for a filetype you can redefine it with:

let g:investigate_url_for_ruby="http://ruby-doc.com/search.html?q=^s"

Where ^s will be replaced with the word under the cursor for Ruby files.

Custom Commands

You can also open documentation with arbitrary shell commands. See investigate-writing-commands in the documentation for more info.

Project specific settings

You can setup project specific settings with an .invrc file from the directory you launch Vim in. For example for a Rails project you may want to set Ruby files to open Rails documentation for that single project but not other Ruby gem based projects you're working on. To do that the file would look something like this:

[syntax]
ruby=rails

This will set a syntax variable:

let g:investigate_syntax_for_ruby=rails

Which entirely changes Ruby files to open in the Rails documentation. See investigate-conf-file for more information.

If you don't have a preferred installation method check out vim-plug

Development

If you find any bugs, want any languages added, or want any default language settings changed, please submit an issue.