accept loosely formatted json, output strictly formatted json
go get -f -u -v github.com/phinze/jsonfmt
jsonfmt <json_file>
Reformats the file in place.
In your .vimrc:
function! JsonFormat()
" save cursor position and many other things
let l:curw=winsaveview()
" Write current unsaved buffer to a temp file
let l:tmpname = tempname()
call writefile(getline(1, '$'), l:tmpname)
" populate the final command with user based fmt options
let command = "jsonfmt"
" execute our command...
let out = system(command . " " . l:tmpname)
if v:shell_error == 0
" remove undo point caused via BufWritePre
try | silent undojoin | catch | endtry
" Replace current file with temp file, then reload buffer
call rename(l:tmpname, expand('%'))
silent edit!
let &syntax = &syntax
endif
" restore our cursor/windows positions
call winrestview(l:curw)
endfunction
autocmd BufWritePre *.json call JsonFormat()- Uses @daviddengcn's ljson for the loose input parsing a.k.a. the actually difficult part ;D
- Vim code stolen from @fatih's delightful vim-go project.