diff --git a/autoload/SpaceVim/api/data/json.vim b/autoload/SpaceVim/api/data/json.vim
new file mode 100644
index 000000000..707248680
--- /dev/null
+++ b/autoload/SpaceVim/api/data/json.vim
@@ -0,0 +1,104 @@
+let s:json = {}
+
+
+if exists('*json_decode')
+    let g:spacevim_api_json_true = v:true
+    let g:spacevim_api_json_true = v:false
+    let g:spacevim_api_json_true = v:null
+    function! s:json_decode(json) abort
+        if a:json ==# ''
+            return []
+        endif
+        return json_decode(a:json)
+    endfunction
+else
+    function! s:json_null() abort
+    endfunction
+
+    function! s:json_true() abort
+    endfunction
+
+    function! s:json_false() abort
+    endfunction
+
+    let g:spacevim_api_json_true = [function('s:json_true')]
+    let g:spacevim_api_json_false = [function('s:json_false')]
+    let g:spacevim_api_json_null = [function('s:json_null')]
+    " @vimlint(EVL102, 1, l:true)
+    " @vimlint(EVL102, 1, l:false)
+    " @vimlint(EVL102, 1, l:null)
+    function! s:json_decode(json) abort
+        let true = g:spacevim_api_json_true
+        let false = g:spacevim_api_json_false
+        let null = g:spacevim_api_json_null
+        if substitute(a:json, '\v\"%(\\.|[^"\\])*\"|true|false|null|[+-]?\d+%(\.\d+%([Ee][+-]?\d+)?)?', '', 'g') !~# "[^,:{}[\\] \t]"
+
+            try
+                let object = eval(a:json)
+            catch
+                " malformed JSON
+                let object = ''
+            endtry
+        else
+            let object = ''
+        endif
+
+        return object
+    endfunction
+    " @vimlint(EVL102, 0, l:true)
+    " @vimlint(EVL102, 0, l:false)
+    " @vimlint(EVL102, 0, l:null)
+endif
+
+lockvar g:spacevim_api_json_true
+lockvar g:spacevim_api_json_false
+lockvar g:spacevim_api_json_null
+
+let s:json['json_decode'] = function('s:json_decode')
+
+if exists('*json_encode')
+    function! s:json_encode(val) abort
+        return json_encode(a:val)
+    endfunction
+else
+    function! s:json_encode(val) abort
+        if type(a:val) == type(0)
+            return a:val
+        elseif type(a:val) == type('')
+            let json = '"' . escape(a:val, '\"') . '"'
+            let json = substitute(json, "\r", '\\r', 'g')
+            let json = substitute(json, "\n", '\\n', 'g')
+            let json = substitute(json, "\t", '\\t', 'g')
+            let json = substitute(json, '\([[:cntrl:]]\)', '\=printf("\x%02d", char2nr(submatch(1)))', 'g')
+            return iconv(json, &encoding, 'utf-8')
+        elseif type(a:val) == 2
+            let s = string(a:val)
+            if s == string(g:spacevim_api_json_null)
+                return 'null'
+            elseif s == string(g:spacevim_api_json_true)
+                return 'true'
+            elseif s == string(g:spacevim_api_json_false)
+                return 'false'
+            endif
+        elseif type(a:val) == type([])
+            if len(a:val) == 1 && a:val[0] == g:spacevim_api_json_false[0]
+                return 'false'
+            elseif len(a:val) == 1 && a:val[0] == g:spacevim_api_json_true[0]
+                return 'true'
+            elseif len(a:val) == 1 && a:val[0] == g:spacevim_api_json_null[0]
+                return 'null'
+            endif
+            return '[' . join(map(copy(a:val), 's:json_encode(v:val)'), ',') . ']'
+        elseif type(a:val) == 4
+            return '{' . join(map(keys(a:val), "s:json_encode(v:val) . ':' . s:json_encode(a:val[v:val])"), ',') . '}'
+        else
+            return string(a:val)
+        endif
+    endfunction
+endif
+
+let s:json['json_encode'] = function('s:json_encode')
+
+function! SpaceVim#api#data#json#get() abort
+    return deepcopy(s:json)
+endfunction
diff --git a/autoload/SpaceVim/api/data/string.vim b/autoload/SpaceVim/api/data/string.vim
index 148b0a96b..26398425a 100644
--- a/autoload/SpaceVim/api/data/string.vim
+++ b/autoload/SpaceVim/api/data/string.vim
@@ -7,6 +7,25 @@ endfunction
 
 let s:file['trim'] = function('s:trim')
 
+function! s:fill(str, length) abort
+    if strwidth(a:str) <= a:length
+        return a:str . repeat(' ', a:length - strwidth(a:str))
+    else
+        let l = 0
+        for i in range(strchars(a:str) - 1)
+            if strwidth(strcharpart(a:str, 0, i)) > a:length
+                break
+            else
+                let l = i
+            endif
+        endfor
+        let str = strcharpart(a:str, 0, l)
+        return str . repeat(' ', a:length - strwidth(str))
+    endif
+endfunction
+
+let s:file['fill'] = function('s:fill')
+
 function! s:trim_start(str) abort
     return substitute(a:str, '^\s*', '', 'g')
 endfunction
diff --git a/autoload/SpaceVim/api/file.vim b/autoload/SpaceVim/api/file.vim
index 5704ddcd9..48258c8fb 100644
--- a/autoload/SpaceVim/api/file.vim
+++ b/autoload/SpaceVim/api/file.vim
@@ -151,6 +151,30 @@ endfunction
 
 let s:file['fticon'] = function('s:filetypeIcon')
 
+function! s:write(msg, fname) abort
+    let flags = filewritable(a:fname) ? 'a' : ''
+    call writefile([a:msg], a:fname, flags)
+endfunction
+
+let s:file['write'] = function('s:write')
+
+function! s:override(msg, fname) abort
+    let flags = filewritable(a:fname) ? 'b' : ''
+    call writefile([a:msg], a:fname, flags)
+endfunction
+
+let s:file['override'] = function('s:override')
+
+function! s:read(fname) abort       
+    if filereadable(a:fname)
+        return readfile(a:fname, '')
+    else
+        return ''
+    endif
+endfunction
+
+let s:file['read'] = function('s:read')
+
 function! SpaceVim#api#file#get() abort
     return deepcopy(s:file)
 endfunction
diff --git a/autoload/SpaceVim/api/unicode/box.vim b/autoload/SpaceVim/api/unicode/box.vim
new file mode 100644
index 000000000..2a2d553c2
--- /dev/null
+++ b/autoload/SpaceVim/api/unicode/box.vim
@@ -0,0 +1,81 @@
+let s:box = {}
+let s:json = SpaceVim#api#import('data#json')
+let s:string = SpaceVim#api#import('data#string')
+scriptencoding utf-8
+" http://jrgraphix.net/r/Unicode/2500-257F
+" http://www.alanflavell.org.uk/unicode/unidata.html
+
+" json should be a list of items which have same keys
+function! s:drawing_table(json, ...) abort
+    if empty(a:json)
+        return []
+    endif
+    if &encoding ==# 'utf-8'
+        let top_left_corner = '╭'
+        let top_right_corner = '╮'
+        let bottom_left_corner = '╰'
+        let bottom_right_corner = '╯'
+        let side = '│'
+        let top_bottom_side = '─'
+        let middle = '┼'
+        let top_middle = '┬'
+        let left_middle = '├'
+        let right_middle = '┤'
+        let bottom_middle = '┴'
+    else
+        let top_left_corner = '*'
+        let top_right_corner = '*'
+        let bottom_left_corner = '*'
+        let bottom_right_corner = '*'
+        let side = '|'
+        let top_bottom_side = '-'
+        let middle = '*'
+        let top_middle = '*'
+        let left_middle = '*'
+        let right_middle = '*'
+        let bottom_middle = '*'
+    endif
+    let table = []
+    let items = s:json.json_decode(a:json)
+    let col = len(keys(items[0]))
+    let top_line = top_left_corner
+                \ . repeat(repeat(top_bottom_side, 15) . top_middle, col - 1)
+                \ . repeat(top_bottom_side, 15)
+                \ . top_right_corner
+    let middle_line = left_middle
+                \ . repeat(repeat(top_bottom_side, 15) . middle, col - 1)
+                \ . repeat(top_bottom_side, 15)
+                \ . right_middle
+    let bottom_line = bottom_left_corner
+                \ . repeat(repeat(top_bottom_side, 15) . bottom_middle, col - 1)
+                \ . repeat(top_bottom_side, 15)
+                \ . bottom_right_corner
+    call add(table, top_line)
+    let tytle = side
+    if a:0 == 0
+        let keys = keys(items[0])
+    else
+        let keys = a:1
+    endif
+    for key in keys
+        let tytle .= s:string.fill(key , 15) . side
+    endfor
+    call add(table, tytle)
+    call add(table, middle_line)
+    for item in items
+        let value_line = side
+        for key in keys
+            let value_line .= s:string.fill(item[key], 15) . side
+        endfor
+        call add(table, value_line)
+        call add(table, middle_line)
+    endfor
+    let table[-1] = bottom_line
+    return table
+endfunction
+
+let s:box['drawing_table'] = function('s:drawing_table')
+
+function! SpaceVim#api#unicode#box#get() abort
+    return deepcopy(s:box)
+endfunction
diff --git a/config/neovim.vim b/config/neovim.vim
index b558d8b24..a1253467f 100644
--- a/config/neovim.vim
+++ b/config/neovim.vim
@@ -22,38 +22,36 @@ let $NVIM_TUI_ENABLE_CURSOR_SHAPE=2
 "silent! let &t_SR = "\<Esc>]50;CursorShape=2\x7"
 "silent! let &t_EI = "\<Esc>]50;CursorShape=0\x7"
 " dark0 + gray
-let g:terminal_color_0 = "#282828"
-let g:terminal_color_8 = "#928374"
+let g:terminal_color_0 = '#282828'
+let g:terminal_color_8 = '#928374'
 
 " neurtral_red + bright_red
-let g:terminal_color_1 = "#cc241d"
-let g:terminal_color_9 = "#fb4934"
+let g:terminal_color_1 = '#cc241d'
+let g:terminal_color_9 = '#fb4934'
 
 " neutral_green + bright_green
-let g:terminal_color_2 = "#98971a"
-let g:terminal_color_10 = "#b8bb26"
+let g:terminal_color_2 = '#98971a'
+let g:terminal_color_10 = '#b8bb26'
 
 " neutral_yellow + bright_yellow
-let g:terminal_color_3 = "#d79921"
-let g:terminal_color_11 = "#fabd2f"
+let g:terminal_color_3 = '#d79921'
+let g:terminal_color_11 = '#fabd2f'
 
 " neutral_blue + bright_blue
-let g:terminal_color_4 = "#458588"
-let g:terminal_color_12 = "#83a598"
+let g:terminal_color_4 = '#458588'
+let g:terminal_color_12 = '#83a598'
 
 " neutral_purple + bright_purple
-let g:terminal_color_5 = "#b16286"
-let g:terminal_color_13 = "#d3869b"
+let g:terminal_color_5 = '#b16286'
+let g:terminal_color_13 = '#d3869b'
 
 " neutral_aqua + faded_aqua
-let g:terminal_color_6 = "#689d6a"
-let g:terminal_color_14 = "#8ec07c"
+let g:terminal_color_6 = '#689d6a'
+let g:terminal_color_14 = '#8ec07c'
 
 " light4 + light1
-let g:terminal_color_7 = "#a89984"
-let g:terminal_color_15 = "#ebdbb2"
-nnoremap <nowait> <FocusGained> <Nop>
-nnoremap <nowait> <FocusLost> <Nop>
+let g:terminal_color_7 = '#a89984'
+let g:terminal_color_15 = '#ebdbb2'
 augroup Terminal
     au!
     au TermOpen * let g:last_terminal_job_id = b:terminal_job_id | IndentLinesDisable