Look up keywords on https://devdocs.io from Vim

devdocs.md

This gist is no longer maintained.

See https://github.com/romainl/vim-devdocs for an up-to-date version.

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Look up keywords on https://devdocs.io from Vim

Use :DD without argument to look up the word under the cursor, scoped with the current filetype:

:DD

Use :DD keyword to look up the given keyword, scoped with the current filetype:

:DD Map

Add a ! to prevent scoping:

:DD! getelementbyid

Use :DD scope keyword to do the scoping yourself:

:DD scss @mixin

Use the :DD command for keyword look up with the built-in K:

setlocal keywordprg=:DD

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My Vim-related gists.

devdocs.vim

" What command to use
function! Cmd() abort
    if executable("xdg-open")
        return "xdg-open"
    endif
    if executable("open")
        return "open"
    endif
    return "explorer"
endfunction

" Build the URL stub
let s:stub = Cmd() . " 'https://devdocs.io/#q="

" Build the command
command! -bang -nargs=* DD silent! call system(len(split(<q-args>, ' ')) == 0 ?
            \ s:stub . (expand('<bang>') == "!" || &filetype . '%20') . expand('<cword>') . "'" : len(split(<q-args>, ' ')) == 1 ?
            \ s:stub . (expand('<bang>') == "!" || &filetype . '%20') . <q-args> . "'" : s:stub . substitute(<q-args>, '\s\+', '%20', 'g') . "'")