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paredit.vim
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paredit.vim
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" paredit.vim:
" Paredit mode for Slimv
" Version: 0.9.12
" Last Change: 20 Nov 2013
" Maintainer: Tamas Kovacs <kovisoft at gmail dot com>
" License: This file is placed in the public domain.
" No warranty, express or implied.
" *** *** Use At-Your-Own-Risk! *** ***
"
" =====================================================================
"
" Load Once:
if &cp || exists( 'g:paredit_loaded' )
finish
endif
let g:paredit_loaded = 1
" Needed to load filetype and indent plugins
filetype plugin on
filetype indent on
" =====================================================================
" Global variable definitions
" =====================================================================
" Paredit mode selector
if !exists( 'g:paredit_mode' )
let g:paredit_mode = 1
endif
" Match delimiter this number of lines before and after cursor position
if !exists( 'g:paredit_matchlines' )
let g:paredit_matchlines = 100
endif
" Use short keymaps, i.e. J instead of <Leader>J
if !exists( 'g:paredit_shortmaps' )
let g:paredit_shortmaps = 0
endif
" Use smart jumping to the nearest paren, curly brace, or square bracket in
" clojure
if !exists( 'g:paredit_smartjump' )
let g:paredit_smartjump = 0
endif
" Custom <Leader> for the Paredit plugin
if !exists( 'g:paredit_leader' )
if exists( 'mapleader' )
let g:paredit_leader = mapleader
else
let g:paredit_leader = ','
endif
endif
" Use 'Electric Return', i.e. add double newlines if enter pressed before a closing paren
if !exists( 'g:paredit_electric_return' )
let g:paredit_electric_return = 1
endif
" =====================================================================
" Other variable definitions
" =====================================================================
" Skip matches inside string or comment or after '\'
let s:skip_sc = '(synIDattr(synID(line("."), col("."), 0), "name") =~ "[Ss]tring\\|[Cc]omment\\|[Ss]pecial\\|clojureRegexp\\|clojurePattern" || getline(line("."))[col(".")-2] == "\\")'
" Valid macro prefix characters
let s:any_macro_prefix = "'" . '\|`\|#\|@\|\~\|,\|\^'
" Repeat count for some remapped edit functions (like 'd')
let s:repeat = 0
let s:yank_pos = []
" =====================================================================
" General utility functions
" =====================================================================
" Buffer specific initialization
function! PareditInitBuffer()
let b:paredit_init = 1
" in case they are accidentally removed
" Also define regular expressions to identify special characters used by paredit
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
let b:any_matched_char = '(\|)\|\[\|\]\|{\|}\|\"'
let b:any_matched_pair = '()\|\[\]\|{}\|\"\"'
let b:any_opening_char = '(\|\[\|{'
let b:any_closing_char = ')\|\]\|}'
let b:any_openclose_char = '(\|)\|\[\|\]\|{\|}'
let b:any_wsopen_char = '\s\|(\|\[\|{'
let b:any_wsclose_char = '\s\|)\|\]\|}'
else
let b:any_matched_char = '(\|)\|\"'
let b:any_matched_pair = '()\|\"\"'
let b:any_opening_char = '('
let b:any_closing_char = ')'
let b:any_openclose_char = '(\|)'
let b:any_wsopen_char = '\s\|('
let b:any_wsclose_char = '\s\|)'
endif
if g:paredit_mode
" Paredit mode is on: add buffer specific keybindings
inoremap <buffer> <expr> ( PareditInsertOpening('(',')')
inoremap <buffer> <silent> ) <C-R>=(pumvisible() ? "\<lt>C-Y>" : "")<CR><C-O>:let save_ve=&ve<CR><C-O>:set ve=all<CR><C-O>:<C-U>call PareditInsertClosing('(',')')<CR><C-O>:let &ve=save_ve<CR>
inoremap <buffer> <expr> " PareditInsertQuotes()
inoremap <buffer> <expr> <BS> PareditBackspace(0)
inoremap <buffer> <expr> <Del> PareditDel()
if &ft =~ '.*\(clojure\|scheme\|racket\).*' && g:paredit_smartjump
nnoremap <buffer> <silent> ( :<C-U>call PareditSmartJumpOpening(0)<CR>
nnoremap <buffer> <silent> ) :<C-U>call PareditSmartJumpClosing(0)<CR>
vnoremap <buffer> <silent> ( <Esc>:<C-U>call PareditSmartJumpOpening(1)<CR>
vnoremap <buffer> <silent> ) <Esc>:<C-U>call PareditSmartJumpClosing(1)<CR>
else
nnoremap <buffer> <silent> ( :<C-U>call PareditFindOpening('(',')',0)<CR>
nnoremap <buffer> <silent> ) :<C-U>call PareditFindClosing('(',')',0)<CR>
vnoremap <buffer> <silent> ( <Esc>:<C-U>call PareditFindOpening('(',')',1)<CR>
vnoremap <buffer> <silent> ) <Esc>:<C-U>call PareditFindClosing('(',')',1)<CR>
endif
nnoremap <buffer> <silent> [[ :<C-U>call PareditFindDefunBck()<CR>
nnoremap <buffer> <silent> ]] :<C-U>call PareditFindDefunFwd()<CR>
call RepeatableNNoRemap('x', ':<C-U>call PareditEraseFwd()')
nnoremap <buffer> <silent> <Del> :<C-U>call PareditEraseFwd()<CR>
call RepeatableNNoRemap('X', ':<C-U>call PareditEraseBck()')
nnoremap <buffer> <silent> s :<C-U>call PareditEraseFwd()<CR>i
call RepeatableNNoRemap('D', 'v$:<C-U>call PareditDelete(visualmode(),1)')
nnoremap <buffer> <silent> C v$:<C-U>call PareditChange(visualmode(),1)<CR>
nnoremap <buffer> <silent> d :<C-U>call PareditSetDelete(v:count)<CR>g@
vnoremap <buffer> <silent> d :<C-U>call PareditDelete(visualmode(),1)<CR>
vnoremap <buffer> <silent> x :<C-U>call PareditDelete(visualmode(),1)<CR>
vnoremap <buffer> <silent> <Del> :<C-U>call PareditDelete(visualmode(),1)<CR>
nnoremap <buffer> <silent> c :set opfunc=PareditChange<CR>g@
vnoremap <buffer> <silent> c :<C-U>call PareditChange(visualmode(),1)<CR>
call RepeatableNNoRemap('dd', ':<C-U>call PareditDeleteLines()')
nnoremap <buffer> <silent> cc :<C-U>call PareditChangeLines()<CR>
nnoremap <buffer> <silent> cw :<C-U>call PareditChangeSpec('cw',1)<CR>
nnoremap <buffer> <silent> cW :set opfunc=PareditChange<CR>g@E
nnoremap <buffer> <silent> cb :<C-U>call PareditChangeSpec('cb',0)<CR>
nnoremap <buffer> <silent> ciw :<C-U>call PareditChangeSpec('ciw',1)<CR>
nnoremap <buffer> <silent> caw :<C-U>call PareditChangeSpec('caw',1)<CR>
call RepeatableNNoRemap('p', ':<C-U>call PareditPut("p")')
call RepeatableNNoRemap('P', ':<C-U>call PareditPut("P")')
call RepeatableNNoRemap(g:paredit_leader . 'w(', ':<C-U>call PareditWrap("(",")")')
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'w( :<C-U>call PareditWrapSelection("(",")")<CR>'
call RepeatableNNoRemap(g:paredit_leader . 'w"', ':<C-U>call PareditWrap('."'".'"'."','".'"'."')")
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'w" :<C-U>call PareditWrapSelection('."'".'"'."','".'"'."')<CR>"
" Spliec s-expression killing backward/forward
execute 'nmap <buffer> <silent> ' . g:paredit_leader.'<Up> d[(,S'
execute 'nmap <buffer> <silent> ' . g:paredit_leader.'<Down> d])%,S'
call RepeatableNNoRemap(g:paredit_leader . 'I', ':<C-U>call PareditRaise()')
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
inoremap <buffer> <expr> [ PareditInsertOpening('[',']')
inoremap <buffer> <silent> ] <C-R>=(pumvisible() ? "\<lt>C-Y>" : "")<CR><C-O>:let save_ve=&ve<CR><C-O>:set ve=all<CR><C-O>:<C-U>call PareditInsertClosing('[',']')<CR><C-O>:let &ve=save_ve<CR>
inoremap <buffer> <expr> { PareditInsertOpening('{','}')
inoremap <buffer> <silent> } <C-R>=(pumvisible() ? "\<lt>C-Y>" : "")<CR><C-O>:let save_ve=&ve<CR><C-O>:set ve=all<CR><C-O>:<C-U>call PareditInsertClosing('{','}')<CR><C-O>:let &ve=save_ve<CR>
call RepeatableNNoRemap(g:paredit_leader . 'w[', ':<C-U>call PareditWrap("[","]")')
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'w[ :<C-U>call PareditWrapSelection("[","]")<CR>'
call RepeatableNNoRemap(g:paredit_leader . 'w{', ':<C-U>call PareditWrap("{","}")')
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'w{ :<C-U>call PareditWrapSelection("{","}")<CR>'
endif
if g:paredit_shortmaps
" Shorter keymaps: old functionality of KEY is remapped to <Leader>KEY
call RepeatableNNoRemap('<', ':<C-U>call PareditMoveLeft()')
call RepeatableNNoRemap('>', ':<C-U>call PareditMoveRight()')
call RepeatableNNoRemap('O', ':<C-U>call PareditSplit()')
call RepeatableNNoRemap('J', ':<C-U>call PareditJoin()')
call RepeatableNNoRemap('W', ':<C-U>call PareditWrap("(",")")')
vnoremap <buffer> <silent> W :<C-U>call PareditWrapSelection('(',')')<CR>
call RepeatableNNoRemap('S', ':<C-U>call PareditSplice()')
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'< :<C-U>normal! <<CR>'
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'> :<C-U>normal! ><CR>'
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'O :<C-U>normal! O<CR>'
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'J :<C-U>normal! J<CR>'
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'W :<C-U>normal! W<CR>'
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'W :<C-U>normal! W<CR>'
execute 'nnoremap <buffer> <silent> ' . g:paredit_leader.'S :<C-U>normal! S<CR>'
else
" Longer keymaps with <Leader> prefix
nnoremap <buffer> <silent> S V:<C-U>call PareditChange(visualmode(),1)<CR>
call RepeatableNNoRemap(g:paredit_leader . '<', ':<C-U>call PareditMoveLeft()')
call RepeatableNNoRemap(g:paredit_leader . '>', ':<C-U>call PareditMoveRight()')
call RepeatableNNoRemap(g:paredit_leader . 'O', ':<C-U>call PareditSplit()')
call RepeatableNNoRemap(g:paredit_leader . 'J', ':<C-U>call PareditJoin()')
call RepeatableNNoRemap(g:paredit_leader . 'W', ':<C-U>call PareditWrap("(",")")')
execute 'vnoremap <buffer> <silent> ' . g:paredit_leader.'W :<C-U>call PareditWrapSelection("(",")")<CR>'
call RepeatableNNoRemap(g:paredit_leader . 'S', ':<C-U>call PareditSplice()')
endif
if g:paredit_electric_return && mapcheck( "<CR>", "i" ) == ""
" Do not override any possible mapping for <Enter>
inoremap <buffer> <expr> <CR> PareditEnter()
endif
else
" Paredit mode is off: remove keybindings
silent! iunmap <buffer> (
silent! iunmap <buffer> )
silent! iunmap <buffer> "
silent! iunmap <buffer> <BS>
silent! iunmap <buffer> <Del>
silent! unmap <buffer> (
silent! unmap <buffer> )
silent! unmap <buffer> [[
silent! unmap <buffer> ]]
silent! unmap <buffer> x
silent! unmap <buffer> <Del>
silent! unmap <buffer> X
silent! unmap <buffer> s
silent! unmap <buffer> D
silent! unmap <buffer> C
silent! unmap <buffer> d
silent! unmap <buffer> c
silent! unmap <buffer> dd
silent! unmap <buffer> cc
silent! unmap <buffer> cw
silent! unmap <buffer> cW
silent! unmap <buffer> cb
silent! unmap <buffer> ciw
silent! unmap <buffer> caw
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
silent! iunmap <buffer> [
silent! iunmap <buffer> ]
silent! iunmap <buffer> {
silent! iunmap <buffer> }
endif
if mapcheck( "<CR>", "i" ) == "PareditEnter()"
" Remove only if we have added this mapping
silent! iunmap <buffer> <CR>
endif
endif
endfunction
" Run the command normally but append a call to repeat#set afterwards
function! RepeatableMap(map_type, keys, command)
let escaped_keys = substitute(a:keys, '["<]', '\\\0', "g")
execute a:map_type . ' <silent> <buffer> ' .
\ a:keys . ' ' . a:command .
\ '\|silent! call repeat#set("' . escaped_keys . '")<CR>'
endfunction
function! RepeatableNMap(keys, command)
call RepeatableMap('nmap', a:keys, a:command)
endfunction
function! RepeatableNNoRemap(keys, command)
call RepeatableMap('nnoremap', a:keys, a:command)
endfunction
" Include all prefix and special characters in 'iskeyword'
function! s:SetKeyword()
let old_value = &iskeyword
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
setlocal iskeyword+=+,-,*,/,%,<,=,>,:,$,?,!,@-@,94,~,#,\|,&
else
setlocal iskeyword+=+,-,*,/,%,<,=,>,:,$,?,!,@-@,94,~,#,\|,&,.,{,},[,]
endif
return old_value
endfunction
" General Paredit operator function
function! PareditOpfunc( func, type, visualmode )
let sel_save = &selection
let ve_save = &virtualedit
set virtualedit=all
let regname = v:register
let save_0 = getreg( '0' )
if a:visualmode " Invoked from Visual mode, use '< and '> marks.
silent exe "normal! `<" . a:type . "`>"
elseif a:type == 'line'
let &selection = "inclusive"
silent exe "normal! '[V']"
elseif a:type == 'block'
let &selection = "inclusive"
silent exe "normal! `[\<C-V>`]"
else
let &selection = "inclusive"
silent exe "normal! `[v`]"
endif
if !g:paredit_mode || (a:visualmode && (a:type == 'block' || a:type == "\<C-V>"))
" Block mode is too difficult to handle at the moment
silent exe "normal! d"
let putreg = getreg( '"' )
else
silent exe "normal! y"
let putreg = getreg( '"' )
if a:func == 'd'
" Register "0 is corrupted by the above 'y' command
call setreg( '0', save_0 )
elseif a:visualmode && &selection == "inclusive" && len(getline("'>")) < col("'>") && len(putreg) > 0
" Remove extra space added at the end of line when selection=inclusive, all, or onemore
let putreg = putreg[:-2]
endif
" Find and keep unbalanced matched characters in the region
let instring = s:InsideString( line("'<"), col("'<") )
if col("'>") > 1 && !s:InsideString( line("'<"), col("'<") - 1 )
" We are at the beginning of the string
let instring = 0
endif
let matched = s:GetMatchedChars( putreg, instring, s:InsideComment( line("'<"), col("'<") ) )
let matched = s:Unbalanced( matched )
let matched = substitute( matched, '\s', '', 'g' )
if matched == ''
if a:func == 'c' && (a:type == 'v' || a:type == 'V' || a:type == 'char')
silent exe "normal! gvc"
else
silent exe "normal! gvd"
endif
else
silent exe "normal! gvc" . matched
silent exe "normal! l"
let offs = len(matched)
if matched[0] =~ b:any_closing_char
let offs = offs + 1
endif
if a:func == 'd'
let offs = offs - 1
elseif instring && matched == '"'
" Keep cursor inside the double quotes
let offs = offs + 1
endif
if offs > 0
silent exe "normal! " . string(offs) . "h"
endif
endif
endif
let &selection = sel_save
let &virtualedit = ve_save
if a:func == 'd' && regname == '"'
" Do not currupt the '"' register and hence the "0 register
call setreg( '1', putreg )
else
call setreg( regname, putreg )
endif
endfunction
" Set delete mode also saving repeat count
function! PareditSetDelete( count )
let s:repeat = a:count
set opfunc=PareditDelete
endfunction
" General delete operator handling
function! PareditDelete( type, ... )
call PareditOpfunc( 'd', a:type, a:0 )
if s:repeat > 1
call feedkeys( (s:repeat-1) . "." )
endif
let s:repeat = 0
endfunction
" General change operator handling
function! PareditChange( type, ... )
let startcol = col('.')
let ve_save = &virtualedit
set virtualedit=all
call PareditOpfunc( 'c', a:type, a:0 )
if len(getline('.')) == 0
let v:lnum = line('.')
let expr = &indentexpr
if expr == ''
" No special 'indentexpr', call default lisp indent
let expr = 'lispindent(v:lnum)'
endif
execute "call setline( v:lnum, repeat( ' ', " . expr . " ) )"
normal! $l
elseif startcol > 1
normal! l
endif
startinsert
let &virtualedit = ve_save
endfunction
" Delete v:count number of lines
function! PareditDeleteLines()
if v:count > 1
silent exe "normal! V" . (v:count-1) . "j\<Esc>"
else
silent exe "normal! V\<Esc>"
endif
call PareditDelete(visualmode(),1)
endfunction
" Change v:count number of lines
function! PareditChangeLines()
if v:count > 1
silent exe "normal! V" . (v:count-1) . "j\<Esc>"
else
silent exe "normal! V\<Esc>"
endif
call PareditChange(visualmode(),1)
endfunction
" Handle special change command, e.g. cw
" Check if we may revert to its original Vim function
" This way '.' can be used to repeat the command
function! PareditChangeSpec( cmd, dir )
let line = getline( '.' )
if a:dir == 0
" Changing backwards
let c = col( '.' ) - 2
while c >= 0 && line[c] =~ b:any_matched_char
" Shouldn't delete a matched character, just move left
call feedkeys( 'h', 'n')
let c = c - 1
endwhile
if c < 0 && line[0] =~ b:any_matched_char
" Can't help, still on matched character, insert instead
call feedkeys( 'i', 'n')
return
endif
else
" Changing forward
let c = col( '.' ) - 1
while c < len(line) && line[c] =~ b:any_matched_char
" Shouldn't delete a matched character, just move right
call feedkeys( 'l', 'n')
let c = c + 1
endwhile
if c == len(line)
" Can't help, still on matched character, append instead
call feedkeys( 'a', 'n')
return
endif
endif
" Safe to use Vim's built-in change function
call feedkeys( a:cmd, 'n')
endfunction
" Paste text from put register in a balanced way
function! PareditPut( cmd )
let regname = v:register
let reg_save = getreg( regname )
let putreg = reg_save
" Find unpaired matched characters by eliminating paired ones
let matched = s:GetMatchedChars( putreg, s:InsideString(), s:InsideComment() )
let matched = s:Unbalanced( matched )
if matched !~ '\S\+'
" Register contents is balanced, perform default put function
silent exe "normal! " . (v:count>1 ? v:count : '') . (regname=='"' ? '' : '"'.regname) . a:cmd
return
endif
" Replace all unpaired matched characters with a space in order to keep balance
let i = 0
while i < len( putreg )
if matched[i] !~ '\s'
let putreg = strpart( putreg, 0, i ) . ' ' . strpart( putreg, i+1 )
endif
let i = i + 1
endwhile
" Store balanced text in put register and call the appropriate put command
call setreg( regname, putreg )
silent exe "normal! " . (v:count>1 ? v:count : '') . (regname=='"' ? '' : '"'.regname) . a:cmd
call setreg( regname, reg_save )
endfunction
" Toggle paredit mode
function! PareditToggle()
" Don't disable paredit if it was not initialized yet for the current buffer
if exists( 'b:paredit_init') || g:paredit_mode == 0
let g:paredit_mode = 1 - g:paredit_mode
endif
echo g:paredit_mode ? 'Paredit mode on' : 'Paredit mode off'
call PareditInitBuffer()
endfunction
" Does the current syntax item match the given regular expression?
function! s:SynIDMatch( regexp, line, col, match_eol )
let col = a:col
if a:match_eol && col > len( getline( a:line ) )
let col = col - 1
endif
return synIDattr( synID( a:line, col, 0), 'name' ) =~ a:regexp
endfunction
" Is the current cursor position inside a comment?
function! s:InsideComment( ... )
let l = a:0 ? a:1 : line('.')
let c = a:0 ? a:2 : col('.')
if &syntax == ''
" No help from syntax engine,
" remove strings and search for ';' up to the cursor position
let line = strpart( getline(l), 0, c - 1 )
let line = substitute( line, '\\"', '', 'g' )
let line = substitute( line, '"[^"]*"', '', 'g' )
return match( line, ';' ) >= 0
endif
if s:SynIDMatch( 'clojureComment', l, c, 1 )
if strpart( getline(l), c-1, 2 ) == '#_' || strpart( getline(l), c-2, 2 ) == '#_'
" This is a commented out clojure form of type #_(...), treat it as regular form
return 0
endif
endif
return s:SynIDMatch( '[Cc]omment', l, c, 1 )
endfunction
" Is the current cursor position inside a string?
function! s:InsideString( ... )
let l = a:0 ? a:1 : line('.')
let c = a:0 ? a:2 : col('.')
if &syntax == ''
" No help from syntax engine,
" count quote characters up to the cursor position
let line = strpart( getline(l), 0, c - 1 )
let line = substitute( line, '\\"', '', 'g' )
let quotes = substitute( line, '[^"]', '', 'g' )
return len(quotes) % 2
endif
" VimClojure and vim-clojure-static define special syntax for regexps
return s:SynIDMatch( '[Ss]tring\|clojureRegexp\|clojurePattern', l, c, 0 )
endfunction
" Is this a Slimv or VimClojure REPL buffer?
function! s:IsReplBuffer()
if exists( 'g:slimv_repl_name' )
return bufname( "%" ) == g:slimv_repl_name
elseif exists( 'b:vimclojure_repl' )
return 1
else
return 0
endif
endfunction
" Get Slimv or VimClojure REPL buffer last command prompt position
" Return [0, 0] if this is not the REPL buffer
function! s:GetReplPromptPos()
if !s:IsReplBuffer()
return [0, 0]
endif
if exists( 'b:vimclojure_repl')
let cur_pos = getpos( '.' )
call cursor( line( '$' ), 1)
call cursor( line( '.' ), col( '$') )
call search( b:vimclojure_namespace . '=>', 'bcW' )
let target_pos = getpos( '.' )[1:2]
call setpos( '.', cur_pos )
return target_pos
else
return [ b:repl_prompt_line, b:repl_prompt_col ]
endif
endfunction
" Is the current top level form balanced, i.e all opening delimiters
" have a matching closing delimiter
function! s:IsBalanced()
let l = line( '.' )
let c = col( '.' )
let line = getline( '.' )
if c > len(line)
let c = len(line)
endif
let matchb = max( [l-g:paredit_matchlines, 1] )
let matchf = min( [l+g:paredit_matchlines, line('$')] )
let [prompt, cp] = s:GetReplPromptPos()
if s:IsReplBuffer() && l >= prompt && matchb < prompt
" Do not go before the last command prompt in the REPL buffer
let matchb = prompt
endif
let p1 = searchpair( '(', '', ')', 'brnmW', s:skip_sc, matchb )
let p2 = searchpair( '(', '', ')', 'rnmW', s:skip_sc, matchf )
if !(p1 == p2) && !(p1 == p2 - 1 && line[c-1] == '(') && !(p1 == p2 + 1 && line[c-1] == ')')
" Number of opening and closing parens differ
return 0
endif
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
let b1 = searchpair( '\[', '', '\]', 'brnmW', s:skip_sc, matchb )
let b2 = searchpair( '\[', '', '\]', 'rnmW', s:skip_sc, matchf )
if !(b1 == b2) && !(b1 == b2 - 1 && line[c-1] == '[') && !(b1 == b2 + 1 && line[c-1] == ']')
" Number of opening and closing brackets differ
return 0
endif
let b1 = searchpair( '{', '', '}', 'brnmW', s:skip_sc, matchb )
let b2 = searchpair( '{', '', '}', 'rnmW', s:skip_sc, matchf )
if !(b1 == b2) && !(b1 == b2 - 1 && line[c-1] == '{') && !(b1 == b2 + 1 && line[c-1] == '}')
" Number of opening and closing curly braces differ
return 0
endif
endif
return 1
endfunction
" Filter out all non-matched characters from the region
function! s:GetMatchedChars( lines, start_in_string, start_in_comment )
let inside_string = a:start_in_string
let inside_comment = a:start_in_comment
let matched = repeat( ' ', len( a:lines ) )
let i = 0
while i < len( a:lines )
if inside_string
" We are inside a string, skip parens, wait for closing '"'
" but skip escaped \" characters
if a:lines[i] == '"' && a:lines[i-1] != '\'
let matched = strpart( matched, 0, i ) . a:lines[i] . strpart( matched, i+1 )
let inside_string = 0
endif
elseif inside_comment
" We are inside a comment, skip parens, wait for end of line
if a:lines[i] == "\n"
let inside_comment = 0
endif
elseif i > 0 && a:lines[i-1] == '\' && (i < 2 || a:lines[i-2] != '\')
" This is an escaped character, ignore it
else
" We are outside of strings and comments, now we shall count parens
if a:lines[i] == '"'
let matched = strpart( matched, 0, i ) . a:lines[i] . strpart( matched, i+1 )
let inside_string = 1
endif
if a:lines[i] == ';'
let inside_comment = 1
endif
if a:lines[i] =~ b:any_openclose_char
let matched = strpart( matched, 0, i ) . a:lines[i] . strpart( matched, i+1 )
endif
endif
let i = i + 1
endwhile
return matched
endfunction
" Find unpaired matched characters by eliminating paired ones
function! s:Unbalanced( matched )
let matched = a:matched
let tmp = matched
while 1
let matched = tmp
let tmp = substitute( tmp, '(\(\s*\))', ' \1 ', 'g')
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
let tmp = substitute( tmp, '\[\(\s*\)\]', ' \1 ', 'g')
let tmp = substitute( tmp, '{\(\s*\)}', ' \1 ', 'g')
endif
let tmp = substitute( tmp, '"\(\s*\)"', ' \1 ', 'g')
if tmp == matched
" All paired chars eliminated
let tmp = substitute( tmp, ')\(\s*\)(', ' \1 ', 'g')
if &ft =~ '.*\(clojure\|scheme\|racket\).*'
let tmp = substitute( tmp, '\]\(\s*\)\[', ' \1 ', 'g')
let tmp = substitute( tmp, '}\(\s*\){', ' \1 ', 'g')
endif
if tmp == matched
" Also no more inverse pairs can be eliminated
break
endif
endif
endwhile
return matched
endfunction
" Find opening matched character
function! PareditFindOpening( open, close, select )
let open = escape( a:open , '[]' )
let close = escape( a:close, '[]' )
call searchpair( open, '', close, 'bW', s:skip_sc )
if a:select
call searchpair( open, '', close, 'W', s:skip_sc )
let save_ve = &ve
set ve=all
normal! lvh
let &ve = save_ve
call searchpair( open, '', close, 'bW', s:skip_sc )
if &selection == 'inclusive'
" Trim last character from the selection, it will be included anyway
normal! oho
endif
endif
endfunction
" Find closing matched character
function! PareditFindClosing( open, close, select )
let open = escape( a:open , '[]' )
let close = escape( a:close, '[]' )
if a:select
let line = getline( '.' )
if line[col('.')-1] != a:open
normal! h
endif
call searchpair( open, '', close, 'W', s:skip_sc )
call searchpair( open, '', close, 'bW', s:skip_sc )
normal! v
call searchpair( open, '', close, 'W', s:skip_sc )
if &selection != 'inclusive'
normal! l
endif
else
call searchpair( open, '', close, 'W', s:skip_sc )
endif
endfunction
" Returns the nearest opening character to the cursor
" Used for smart jumping in Clojure
function! PareditSmartJumpOpening( select )
let [paren_line, paren_col] = searchpairpos('(', '', ')', 'bWn', s:skip_sc)
let [bracket_line, bracket_col] = searchpairpos('\[', '', '\]', 'bWn', s:skip_sc)
let [brace_line, brace_col] = searchpairpos('{', '', '}', 'bWn', s:skip_sc)
let paren_score = paren_line * 10000 + paren_col
let bracket_score = bracket_line * 10000 + bracket_col
let brace_score = brace_line * 10000 + brace_col
if (brace_score > paren_score || paren_score == 0) && (brace_score > bracket_score || bracket_score == 0) && brace_score != 0
call PareditFindOpening('{','}', a:select)
elseif (bracket_score > paren_score || paren_score == 0) && bracket_score != 0
call PareditFindOpening('[',']', a:select)
else
call PareditFindOpening('(',')', a:select)
endif
endfunction
" Returns the nearest opening character to the cursor
" Used for smart jumping in Clojure
function! PareditSmartJumpClosing( select )
let [paren_line, paren_col] = searchpairpos('(', '', ')', 'Wn', s:skip_sc)
let [bracket_line, bracket_col] = searchpairpos('\[', '', '\]', 'Wn', s:skip_sc)
let [brace_line, brace_col] = searchpairpos('{', '', '}', 'Wn', s:skip_sc)
let paren_score = paren_line * 10000 + paren_col
let bracket_score = bracket_line * 10000 + bracket_col
let brace_score = brace_line * 10000 + brace_col
if (brace_score < paren_score || paren_score == 0) && (brace_score < bracket_score || bracket_score == 0) && brace_score != 0
call PareditFindClosing('{','}', a:select)
elseif (bracket_score < paren_score || paren_score == 0) && bracket_score != 0
call PareditFindClosing('[',']', a:select)
else
call PareditFindClosing('(',')', a:select)
endif
endfunction
" Find defun start backwards
function! PareditFindDefunBck()
let l = line( '.' )
let matchb = max( [l-g:paredit_matchlines, 1] )
let oldpos = getpos( '.' )
let newpos = searchpairpos( '(', '', ')', 'brW', s:skip_sc, matchb )
if newpos[0] == 0
" Already standing on a defun, find the end of the previous one
let newpos = searchpos( ')', 'bW' )
while newpos[0] != 0 && (s:InsideComment() || s:InsideString())
let newpos = searchpos( ')', 'W' )
endwhile
if newpos[0] == 0
" No ')' found, don't move cursor
call setpos( '.', oldpos )
else
" Find opening paren
let pairpos = searchpairpos( '(', '', ')', 'brW', s:skip_sc, matchb )
if pairpos[0] == 0
" ')' has no matching pair
call setpos( '.', oldpos )
endif
endif
endif
endfunction
" Find defun start forward
function! PareditFindDefunFwd()
let l = line( '.' )
let matchf = min( [l+g:paredit_matchlines, line('$')] )
let oldpos = getpos( '.' )
call searchpair( '(', '', ')', 'brW', s:skip_sc, matchf )
normal! %
let newpos = searchpos( '(', 'W' )
while newpos[0] != 0 && (s:InsideComment() || s:InsideString())
let newpos = searchpos( '(', 'W' )
endwhile
if newpos[0] == 0
" No '(' found, don't move cursor
call setpos( '.', oldpos )
endif
endfunction
" Insert opening type of a paired character, like ( or [.
function! PareditInsertOpening( open, close )
if !g:paredit_mode || s:InsideComment() || s:InsideString() || !s:IsBalanced()
return a:open
endif
let line = getline( '.' )
let pos = col( '.' ) - 1
if pos > 0 && line[pos-1] == '\' && (pos < 2 || line[pos-2] != '\')
" About to enter a \( or \[
return a:open
elseif line[pos] !~ b:any_wsclose_char && pos < len( line )
" Add a space after if needed
let retval = a:open . a:close . " \<Left>\<Left>"
else
let retval = a:open . a:close . "\<Left>"
endif
if pos > 0 && line[pos-1] !~ b:any_wsopen_char && line[pos-1] !~ s:any_macro_prefix
" Add a space before if needed
let retval = " " . retval
endif
return retval
endfunction
" Re-gather electric returns up
function! s:ReGatherUp()
if g:paredit_electric_return && getline('.') =~ '^\s*)'
" Re-gather electric returns in the current line for ')'
normal! k
while getline( line('.') ) =~ '^\s*$'
" Delete all empty lines
normal! ddk
endwhile
normal! Jl
elseif g:paredit_electric_return && getline('.') =~ '^\s*\(\]\|}\)' && &ft =~ '.*\(clojure\|scheme\|racket\).*'
" Re-gather electric returns in the current line for ']' and '}'
normal! k
while getline( line('.') ) =~ '^\s*$'
" Delete all empty lines
normal! ddk
endwhile
call setline( line('.'), substitute( line, '\s*$', '', 'g' ) )
normal! Jxl
endif
" Already have the desired character, move right
normal! l
endfunction
" Insert closing type of a paired character, like ) or ].
function! PareditInsertClosing( open, close )
let line = getline( '.' )
let pos = col( '.' ) - 1
if !g:paredit_mode || s:InsideComment() || s:InsideString() || !s:IsBalanced()
call setline( line('.'), line[0 : pos-1] . a:close . line[pos : -1] )
normal! l
return
endif
if pos > 0 && line[pos-1] == '\' && (pos < 2 || line[pos-2] != '\')
" About to enter a \) or \]
call setline( line('.'), line[0 : pos-1] . a:close . line[pos : -1] )
normal! l
return
elseif line[pos] == a:close
call s:ReGatherUp()
return
endif
let open = escape( a:open , '[]' )
let close = escape( a:close, '[]' )
let newpos = searchpairpos( open, '', close, 'nW', s:skip_sc )
if g:paredit_electric_return && newpos[0] > line('.')
" Closing paren is in a line below, check if there are electric returns to re-gather
while getline('.') =~ '^\s*$'
" Delete all empty lines above the cursor
normal! ddk
endwhile
let oldpos = getpos( '.' )
normal! j
while getline('.') =~ '^\s*$'
" Delete all empty lines below the cursor
normal! dd
endwhile
let nextline = substitute( getline('.'), '\s', '', 'g' )
call setpos( '.', oldpos )
if len(nextline) > 0 && nextline[0] == ')'
" Re-gather electric returns in the line of the closing ')'
call setline( line('.'), substitute( getline('.'), '\s*$', '', 'g' ) )
normal! Jl
return
endif
if len(nextline) > 0 && nextline[0] =~ '\]\|}' && &ft =~ '.*\(clojure\|scheme\|racket\).*'
" Re-gather electric returns in the line of the closing ']' or '}'
call setline( line('.'), substitute( line, '\s*$', '', 'g' ) )
normal! Jxl
return
endif
elseif g:paredit_electric_return && line =~ '^\s*)'
" Re-gather electric returns in the current line
call s:ReGatherUp()
return
endif
if searchpair( open, '', close, 'W', s:skip_sc ) > 0
normal! l
endif
"TODO: indent after going to closing character
endfunction
" Insert an (opening or closing) double quote
function! PareditInsertQuotes()
if !g:paredit_mode || s:InsideComment()
return '"'
endif
let line = getline( '.' )
let pos = col( '.' ) - 1
if pos > 0 && line[pos-1] == '\' && (pos < 2 || line[pos-2] != '\')
" About to enter a \"
return '"'
elseif s:InsideString()
"TODO: skip comments in search(...)
if line[pos] == '"'
" Standing on a ", just move to the right
return "\<Right>"
elseif search('[^\\]"\|^"', 'nW') == 0
" We don't have any closing ", insert one
return '"'
else
" Move to the closing "
return "\<C-O>:call search('" . '[^\\]"\|^"' . "','eW')\<CR>\<Right>"
endif
else
" Outside of string: insert a pair of ""
return '""' . "\<Left>"
endif
endfunction
" Handle <Enter> keypress, insert electric return if applicable
function! PareditEnter()
if pumvisible()
" Pressing <CR> in a pop up selects entry.
return "\<C-Y>"
else
let line = getline( '.' )
let pos = col( '.' ) - 1
if g:paredit_electric_return && pos > 0 && line[pos] =~ b:any_closing_char && !s:InsideString() && s:IsBalanced()
" Electric Return
return "\<CR>\<CR>\<Up>"
else
" Regular Return
return "\<CR>"
endif
endif
endfunction
" Handle <BS> keypress
function! PareditBackspace( repl_mode )
let [lp, cp] = s:GetReplPromptPos()
if a:repl_mode && line( "." ) == lp && col( "." ) <= cp
" No BS allowed before the previous EOF mark in the REPL
" i.e. don't delete Lisp prompt
return ""
endif
if !g:paredit_mode || s:InsideComment()
return "\<BS>"
endif
let line = getline( '.' )
let pos = col( '.' ) - 1
if pos == 0
" We are at the beginning of the line
return "\<BS>"
elseif s:InsideString() && line[pos-1] =~ b:any_openclose_char
" Deleting a paren inside a string
return "\<BS>"
elseif pos > 1 && line[pos-1] =~ b:any_matched_char && line[pos-2] == '\' && (pos < 3 || line[pos-3] != '\')
" Deleting an escaped matched character
return "\<BS>\<BS>"
elseif line[pos-1] !~ b:any_matched_char
" Deleting a non-special character
return "\<BS>"
elseif line[pos-1] != '"' && !s:IsBalanced()
" Current top-form is unbalanced, can't retain paredit mode
return "\<BS>"
endif
if line[pos-1:pos] =~ b:any_matched_pair
" Deleting an empty character-pair
return "\<Right>\<BS>\<BS>"
else
" Character-pair is not empty, don't delete just move inside
return "\<Left>"
endif
endfunction
" Handle <Del> keypress
function! PareditDel()
if !g:paredit_mode || s:InsideComment()
return "\<Del>"
endif
let line = getline( '.' )
let pos = col( '.' ) - 1
if pos == len(line)
" We are at the end of the line
return "\<Del>"
elseif line[pos] == '\' && line[pos+1] =~ b:any_matched_char && (pos < 1 || line[pos-1] != '\')
" Deleting an escaped matched character
return "\<Del>\<Del>"
elseif line[pos] !~ b:any_matched_char
" Erasing a non-special character
return "\<Del>"
elseif line[pos] != '"' && !s:IsBalanced()
" Current top-form is unbalanced, can't retain paredit mode
return "\<Del>"
elseif pos == 0
return "\<Right>"
endif
if line[pos-1:pos] =~ b:any_matched_pair
" Erasing an empty character-pair
return "\<Left>\<Del>\<Del>"