nvim: init.vim: Setup deoplete completion for Purescript

Also allow auto imports from PSC IDE.

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>

nvim/init.vim

@@ -378,7 +378,7 @@ augroup haskell_maps
 	au FileType haskell setlocal keywordprg=:Hoogle
 augroup END
 
-augroup psc_ide_maps
+augroup purescript_maps
 	au!
 	au FileType purescript nmap <buffer> <silent> <LocalLeader>L :Plist<CR>
 	au FileType purescript nmap <buffer> <silent> <LocalLeader>l :Pload<CR>
@@ -523,7 +523,14 @@ call deoplete#custom#source('_',
 call deoplete#custom#option('sources', {
 			\ '_' : ['buffer', 'tag', 'around', 'file', 'member'],
 			\ 'rust': ['racer'],
+			\ 'purescript': ['buffer', 'omni'],
 			\})
+call deoplete#custom#source('omni', 'functions', {
+			\ 'purescript':  'PSCIDEComplete',
+			\})
+call deoplete#custom#var('omni', 'input_patterns', {
+		    \ 'purescript': '\w*',
+		    \})
 call deoplete#custom#option({
 			\ 'auto_complete_delay': 200,
 			\ 'auto_complete': v:true,
@@ -654,6 +661,9 @@ let g:netrw_winsize = 10
 " For SLIMV
 let g:lisp_rainbow=1
 
+" For Purescript
+let g:psc_ide_auto_imports = 1
+
 " ----------------------------- Functions ------------------------------------
 function! Cscope(option, query)
     let color = '{ x = $1; $1 = ""; z = $3; $3 = ""; printf "\033[34m%s\033[0m:\033[31m%s\033[0m\011\033[37m%s\033[0m\n", x,z,$0; }'