dotfiles/vim/plugins/auto-pairs/plugin/auto-pairs.vim
2018-04-05 13:06:54 +02:00

583 lines
16 KiB
VimL

" Insert or delete brackets, parens, quotes in pairs.
" Maintainer: JiangMiao <jiangfriend@gmail.com>
" Contributor: camthompson
" Last Change: 2017-06-17
" Version: 1.3.3
" Homepage: http://www.vim.org/scripts/script.php?script_id=3599
" Repository: https://github.com/jiangmiao/auto-pairs
" License: MIT
if exists('g:AutoPairsLoaded') || &cp
finish
end
let g:AutoPairsLoaded = 1
if !exists('g:AutoPairs')
let g:AutoPairs = {'(':')', '[':']', '{':'}',"'":"'",'"':'"', '`':'`'}
end
if !exists('g:AutoPairsParens')
let g:AutoPairsParens = {'(':')', '[':']', '{':'}'}
end
if !exists('g:AutoPairsMapBS')
let g:AutoPairsMapBS = 1
end
" Map <C-h> as the same BS
if !exists('g:AutoPairsMapCh')
let g:AutoPairsMapCh = 1
end
if !exists('g:AutoPairsMapCR')
let g:AutoPairsMapCR = 1
end
if !exists('g:AutoPairsMapSpace')
let g:AutoPairsMapSpace = 1
end
if !exists('g:AutoPairsCenterLine')
let g:AutoPairsCenterLine = 1
end
if !exists('g:AutoPairsShortcutToggle')
let g:AutoPairsShortcutToggle = '<M-p>'
end
if !exists('g:AutoPairsShortcutFastWrap')
let g:AutoPairsShortcutFastWrap = '<M-e>'
end
if !exists('g:AutoPairsMoveCharacter')
let g:AutoPairsMoveCharacter = "()[]{}\"'"
end
if !exists('g:AutoPairsShortcutJump')
let g:AutoPairsShortcutJump = '<M-n>'
endif
" Fly mode will for closed pair to jump to closed pair instead of insert.
" also support AutoPairsBackInsert to insert pairs where jumped.
if !exists('g:AutoPairsFlyMode')
let g:AutoPairsFlyMode = 0
endif
" When skipping the closed pair, look at the current and
" next line as well.
if !exists('g:AutoPairsMultilineClose')
let g:AutoPairsMultilineClose = 1
endif
" Work with Fly Mode, insert pair where jumped
if !exists('g:AutoPairsShortcutBackInsert')
let g:AutoPairsShortcutBackInsert = '<M-b>'
endif
if !exists('g:AutoPairsSmartQuotes')
let g:AutoPairsSmartQuotes = 1
endif
" 7.4.849 support <C-G>U to avoid breaking '.'
" Issue talk: https://github.com/jiangmiao/auto-pairs/issues/3
" Vim note: https://github.com/vim/vim/releases/tag/v7.4.849
if v:version > 704 || v:version == 704 && has("patch849")
let s:Go = "\<C-G>U"
else
let s:Go = ""
endif
let s:Left = s:Go."\<LEFT>"
let s:Right = s:Go."\<RIGHT>"
" Will auto generated {']' => '[', ..., '}' => '{'}in initialize.
let g:AutoPairsClosedPairs = {}
function! AutoPairsInsert(key)
if !b:autopairs_enabled
return a:key
end
let line = getline('.')
let pos = col('.') - 1
let before = strpart(line, 0, pos)
let after = strpart(line, pos)
let next_chars = split(after, '\zs')
let current_char = get(next_chars, 0, '')
let next_char = get(next_chars, 1, '')
let prev_chars = split(before, '\zs')
let prev_char = get(prev_chars, -1, '')
let eol = 0
if col('$') - col('.') <= 1
let eol = 1
end
" Ignore auto close if prev character is \
if prev_char == '\'
return a:key
end
" The key is difference open-pair, then it means only for ) ] } by default
if !has_key(b:AutoPairs, a:key)
let b:autopairs_saved_pair = [a:key, getpos('.')]
" Skip the character if current character is the same as input
if current_char == a:key
return s:Right
end
if !g:AutoPairsFlyMode
" Skip the character if next character is space
if current_char == ' ' && next_char == a:key
return s:Right.s:Right
end
" Skip the character if closed pair is next character
if current_char == ''
if g:AutoPairsMultilineClose
let next_lineno = line('.')+1
let next_line = getline(nextnonblank(next_lineno))
let next_char = matchstr(next_line, '\s*\zs.')
else
let next_char = matchstr(line, '\s*\zs.')
end
if next_char == a:key
return "\<ESC>e^a"
endif
endif
endif
" Fly Mode, and the key is closed-pairs, search closed-pair and jump
if g:AutoPairsFlyMode && has_key(b:AutoPairsClosedPairs, a:key)
let n = stridx(after, a:key)
if n != -1
return repeat(s:Right, n+1)
end
if search(a:key, 'W')
" force break the '.' when jump to different line
return "\<Right>"
endif
endif
" Insert directly if the key is not an open key
return a:key
end
let open = a:key
let close = b:AutoPairs[open]
if current_char == close && open == close
return s:Right
end
" Ignore auto close ' if follows a word
" MUST after closed check. 'hello|'
if a:key == "'" && prev_char =~ '\v\w'
return a:key
end
" support for ''' ``` and """
if open == close
" The key must be ' " `
let pprev_char = line[col('.')-3]
if pprev_char == open && prev_char == open
" Double pair found
return repeat(a:key, 4) . repeat(s:Left, 3)
end
end
let quotes_num = 0
" Ignore comment line for vim file
if &filetype == 'vim' && a:key == '"'
if before =~ '^\s*$'
return a:key
end
if before =~ '^\s*"'
let quotes_num = -1
end
end
" Keep quote number is odd.
" Because quotes should be matched in the same line in most of situation
if g:AutoPairsSmartQuotes && open == close
" Remove \\ \" \'
let cleaned_line = substitute(line, '\v(\\.)', '', 'g')
let n = quotes_num
let pos = 0
while 1
let pos = stridx(cleaned_line, open, pos)
if pos == -1
break
end
let n = n + 1
let pos = pos + 1
endwhile
if n % 2 == 1
return a:key
endif
endif
return open.close.s:Left
endfunction
function! AutoPairsDelete()
if !b:autopairs_enabled
return "\<BS>"
end
let line = getline('.')
let pos = col('.') - 1
let current_char = get(split(strpart(line, pos), '\zs'), 0, '')
let prev_chars = split(strpart(line, 0, pos), '\zs')
let prev_char = get(prev_chars, -1, '')
let pprev_char = get(prev_chars, -2, '')
if pprev_char == '\'
return "\<BS>"
end
" Delete last two spaces in parens, work with MapSpace
if has_key(b:AutoPairs, pprev_char) && prev_char == ' ' && current_char == ' '
return "\<BS>\<DEL>"
endif
" Delete Repeated Pair eg: '''|''' [[|]] {{|}}
if has_key(b:AutoPairs, prev_char)
let times = 0
let p = -1
while get(prev_chars, p, '') == prev_char
let p = p - 1
let times = times + 1
endwhile
let close = b:AutoPairs[prev_char]
let left = repeat(prev_char, times)
let right = repeat(close, times)
let before = strpart(line, pos-times, times)
let after = strpart(line, pos, times)
if left == before && right == after
return repeat("\<BS>\<DEL>", times)
end
end
if has_key(b:AutoPairs, prev_char)
let close = b:AutoPairs[prev_char]
if match(line,'^\s*'.close, col('.')-1) != -1
" Delete (|___)
let space = matchstr(line, '^\s*', col('.')-1)
return "\<BS>". repeat("\<DEL>", len(space)+1)
elseif match(line, '^\s*$', col('.')-1) != -1
" Delete (|__\n___)
let nline = getline(line('.')+1)
if nline =~ '^\s*'.close
if &filetype == 'vim' && prev_char == '"'
" Keep next line's comment
return "\<BS>"
end
let space = matchstr(nline, '^\s*')
return "\<BS>\<DEL>". repeat("\<DEL>", len(space)+1)
end
end
end
return "\<BS>"
endfunction
function! AutoPairsJump()
call search('["\]'')}]','W')
endfunction
" string_chunk cannot use standalone
let s:string_chunk = '\v%(\\\_.|[^\1]|[\r\n]){-}'
let s:ss_pattern = '\v''' . s:string_chunk . ''''
let s:ds_pattern = '\v"' . s:string_chunk . '"'
func! s:RegexpQuote(str)
return substitute(a:str, '\v[\[\{\(\<\>\)\}\]]', '\\&', 'g')
endf
func! s:RegexpQuoteInSquare(str)
return substitute(a:str, '\v[\[\]]', '\\&', 'g')
endf
" Search next open or close pair
func! s:FormatChunk(open, close)
let open = s:RegexpQuote(a:open)
let close = s:RegexpQuote(a:close)
let open2 = s:RegexpQuoteInSquare(a:open)
let close2 = s:RegexpQuoteInSquare(a:close)
if open == close
return '\v'.open.s:string_chunk.close
else
return '\v%(' . s:ss_pattern . '|' . s:ds_pattern . '|' . '[^'.open2.close2.']|[\r\n]' . '){-}(['.open2.close2.'])'
end
endf
" Fast wrap the word in brackets
function! AutoPairsFastWrap()
let line = getline('.')
let current_char = line[col('.')-1]
let next_char = line[col('.')]
let open_pair_pattern = '\v[({\[''"]'
let at_end = col('.') >= col('$') - 1
normal! x
" Skip blank
if next_char =~ '\v\s' || at_end
call search('\v\S', 'W')
let line = getline('.')
let next_char = line[col('.')-1]
end
if has_key(b:AutoPairs, next_char)
let followed_open_pair = next_char
let inputed_close_pair = current_char
let followed_close_pair = b:AutoPairs[next_char]
if followed_close_pair != followed_open_pair
" TODO replace system searchpair to skip string and nested pair.
" eg: (|){"hello}world"} will transform to ({"hello})world"}
call searchpair('\V'.followed_open_pair, '', '\V'.followed_close_pair, 'W')
else
call search(s:FormatChunk(followed_open_pair, followed_close_pair), 'We')
end
return s:Right.inputed_close_pair.s:Left
else
normal! he
return s:Right.current_char.s:Left
end
endfunction
function! AutoPairsMap(key)
" | is special key which separate map command from text
let key = a:key
if key == '|'
let key = '<BAR>'
end
let escaped_key = substitute(key, "'", "''", 'g')
" use expr will cause search() doesn't work
execute 'inoremap <buffer> <silent> '.key." <C-R>=AutoPairsInsert('".escaped_key."')<CR>"
endfunction
function! AutoPairsToggle()
if b:autopairs_enabled
let b:autopairs_enabled = 0
echo 'AutoPairs Disabled.'
else
let b:autopairs_enabled = 1
echo 'AutoPairs Enabled.'
end
return ''
endfunction
function! AutoPairsMoveCharacter(key)
let c = getline(".")[col(".")-1]
let escaped_key = substitute(a:key, "'", "''", 'g')
return "\<DEL>\<ESC>:call search("."'".escaped_key."'".")\<CR>a".c."\<LEFT>"
endfunction
function! AutoPairsReturn()
if b:autopairs_enabled == 0
return ''
end
let line = getline('.')
let pline = getline(line('.')-1)
let prev_char = pline[strlen(pline)-1]
let cmd = ''
let cur_char = line[col('.')-1]
if has_key(b:AutoPairs, prev_char) && b:AutoPairs[prev_char] == cur_char
if g:AutoPairsCenterLine && winline() * 3 >= winheight(0) * 2
" Recenter before adding new line to avoid replacing line content
let cmd = "zz"
end
" If equalprg has been set, then avoid call =
" https://github.com/jiangmiao/auto-pairs/issues/24
if &equalprg != ''
return "\<ESC>".cmd."O"
endif
" conflict with javascript and coffee
" javascript need indent new line
" coffeescript forbid indent new line
if &filetype == 'coffeescript' || &filetype == 'coffee'
return "\<ESC>".cmd."k==o"
else
return "\<ESC>".cmd."=ko"
endif
end
return ''
endfunction
function! AutoPairsSpace()
let line = getline('.')
let prev_char = line[col('.')-2]
let cmd = ''
let cur_char =line[col('.')-1]
if has_key(g:AutoPairsParens, prev_char) && g:AutoPairsParens[prev_char] == cur_char
let cmd = "\<SPACE>".s:Left
endif
return "\<SPACE>".cmd
endfunction
function! AutoPairsBackInsert()
if exists('b:autopairs_saved_pair')
let pair = b:autopairs_saved_pair[0]
let pos = b:autopairs_saved_pair[1]
call setpos('.', pos)
return pair
endif
return ''
endfunction
function! AutoPairsInit()
let b:autopairs_loaded = 1
if !exists('b:autopairs_enabled')
let b:autopairs_enabled = 1
end
let b:AutoPairsClosedPairs = {}
if !exists('b:AutoPairs')
let b:AutoPairs = g:AutoPairs
end
if !exists('b:AutoPairsMoveCharacter')
let b:AutoPairsMoveCharacter = g:AutoPairsMoveCharacter
end
" buffer level map pairs keys
for [open, close] in items(b:AutoPairs)
call AutoPairsMap(open)
if open != close
call AutoPairsMap(close)
end
let b:AutoPairsClosedPairs[close] = open
endfor
for key in split(b:AutoPairsMoveCharacter, '\s*')
let escaped_key = substitute(key, "'", "''", 'g')
execute 'inoremap <silent> <buffer> <M-'.key."> <C-R>=AutoPairsMoveCharacter('".escaped_key."')<CR>"
endfor
" Still use <buffer> level mapping for <BS> <SPACE>
if g:AutoPairsMapBS
" Use <C-R> instead of <expr> for issue #14 sometimes press BS output strange words
execute 'inoremap <buffer> <silent> <BS> <C-R>=AutoPairsDelete()<CR>'
end
if g:AutoPairsMapCh
execute 'inoremap <buffer> <silent> <C-h> <C-R>=AutoPairsDelete()<CR>'
endif
if g:AutoPairsMapSpace
" Try to respect abbreviations on a <SPACE>
let do_abbrev = ""
if v:version == 703 && has("patch489") || v:version > 703
let do_abbrev = "<C-]>"
endif
execute 'inoremap <buffer> <silent> <SPACE> '.do_abbrev.'<C-R>=AutoPairsSpace()<CR>'
end
if g:AutoPairsShortcutFastWrap != ''
execute 'inoremap <buffer> <silent> '.g:AutoPairsShortcutFastWrap.' <C-R>=AutoPairsFastWrap()<CR>'
end
if g:AutoPairsShortcutBackInsert != ''
execute 'inoremap <buffer> <silent> '.g:AutoPairsShortcutBackInsert.' <C-R>=AutoPairsBackInsert()<CR>'
end
if g:AutoPairsShortcutToggle != ''
" use <expr> to ensure showing the status when toggle
execute 'inoremap <buffer> <silent> <expr> '.g:AutoPairsShortcutToggle.' AutoPairsToggle()'
execute 'noremap <buffer> <silent> '.g:AutoPairsShortcutToggle.' :call AutoPairsToggle()<CR>'
end
if g:AutoPairsShortcutJump != ''
execute 'inoremap <buffer> <silent> ' . g:AutoPairsShortcutJump. ' <ESC>:call AutoPairsJump()<CR>a'
execute 'noremap <buffer> <silent> ' . g:AutoPairsShortcutJump. ' :call AutoPairsJump()<CR>'
end
endfunction
function! s:ExpandMap(map)
let map = a:map
let map = substitute(map, '\(<Plug>\w\+\)', '\=maparg(submatch(1), "i")', 'g')
return map
endfunction
function! AutoPairsTryInit()
if exists('b:autopairs_loaded')
return
end
" for auto-pairs starts with 'a', so the priority is higher than supertab and vim-endwise
"
" vim-endwise doesn't support <Plug>AutoPairsReturn
" when use <Plug>AutoPairsReturn will cause <Plug> isn't expanded
"
" supertab doesn't support <SID>AutoPairsReturn
" when use <SID>AutoPairsReturn will cause Duplicated <CR>
"
" and when load after vim-endwise will cause unexpected endwise inserted.
" so always load AutoPairs at last
" Buffer level keys mapping
" comptible with other plugin
if g:AutoPairsMapCR
if v:version == 703 && has('patch32') || v:version > 703
" VIM 7.3 supports advancer maparg which could get <expr> info
" then auto-pairs could remap <CR> in any case.
let info = maparg('<CR>', 'i', 0, 1)
if empty(info)
let old_cr = '<CR>'
let is_expr = 0
else
let old_cr = info['rhs']
let old_cr = s:ExpandMap(old_cr)
let old_cr = substitute(old_cr, '<SID>', '<SNR>' . info['sid'] . '_', 'g')
let is_expr = info['expr']
let wrapper_name = '<SID>AutoPairsOldCRWrapper73'
endif
else
" VIM version less than 7.3
" the mapping's <expr> info is lost, so guess it is expr or not, it's
" not accurate.
let old_cr = maparg('<CR>', 'i')
if old_cr == ''
let old_cr = '<CR>'
let is_expr = 0
else
let old_cr = s:ExpandMap(old_cr)
" old_cr contain (, I guess the old cr is in expr mode
let is_expr = old_cr =~ '\V(' && toupper(old_cr) !~ '\V<C-R>'
" The old_cr start with " it must be in expr mode
let is_expr = is_expr || old_cr =~ '\v^"'
let wrapper_name = '<SID>AutoPairsOldCRWrapper'
end
end
if old_cr !~ 'AutoPairsReturn'
if is_expr
" remap <expr> to `name` to avoid mix expr and non-expr mode
execute 'inoremap <buffer> <expr> <script> '. wrapper_name . ' ' . old_cr
let old_cr = wrapper_name
end
" Always silent mapping
execute 'inoremap <script> <buffer> <silent> <CR> '.old_cr.'<SID>AutoPairsReturn'
end
endif
call AutoPairsInit()
endfunction
" Always silent the command
inoremap <silent> <SID>AutoPairsReturn <C-R>=AutoPairsReturn()<CR>
imap <script> <Plug>AutoPairsReturn <SID>AutoPairsReturn
au BufEnter * :call AutoPairsTryInit()