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-rw-r--r--vim/bundle/slimv/plugin/paredit.vim1863
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+" paredit.vim:
+" Paredit mode for Slimv
+" Version: 0.9.13
+" Last Change: 15 Jan 2017
+" 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 = '<leader>'
+ 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
+" =====================================================================
+
+" 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 = []
+
+" Filetypes with [] and {} pairs balanced as well
+let s:fts_balancing_all_brackets = '.*\(clojure\|hy\|scheme\|racket\|shen\).*'
+
+" =====================================================================
+" 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 =~ s:fts_balancing_all_brackets
+ 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>=PareditInsertClosing('(',')')<CR>
+ inoremap <buffer> <expr> " PareditInsertQuotes()
+ inoremap <buffer> <expr> <BS> PareditBackspace(0)
+ inoremap <buffer> <expr> <C-h> PareditBackspace(0)
+ inoremap <buffer> <expr> <Del> PareditDel()
+ if &ft =~ s:fts_balancing_all_brackets && g:paredit_smartjump
+ noremap <buffer> <silent> ( :<C-U>call PareditSmartJumpOpening(0)<CR>
+ noremap <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
+ noremap <buffer> <silent> ( :<C-U>call PareditFindOpening('(',')',0)<CR>
+ noremap <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
+ noremap <buffer> <silent> [[ :<C-U>call PareditFindDefunBck()<CR>
+ noremap <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[(:<C-U>call PareditSplice()<CR>'
+ execute 'nmap <buffer> <silent> ' . g:paredit_leader.'<Down> d])%:<C-U>call PareditSplice()<CR>'
+ call RepeatableNNoRemap(g:paredit_leader . 'I', ':<C-U>call PareditRaise()')
+ if &ft =~ s:fts_balancing_all_brackets
+ inoremap <buffer> <expr> [ PareditInsertOpening('[',']')
+ inoremap <buffer> <silent> ] <C-R>=PareditInsertClosing('[',']')<CR>
+ inoremap <buffer> <expr> { PareditInsertOpening('{','}')
+ inoremap <buffer> <silent> } <C-R>=PareditInsertClosing('{','}')<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> <C-h>
+ 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 =~ s:fts_balancing_all_brackets
+ 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 =~ s:fts_balancing_all_brackets
+ 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 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 . " ) )"
+ call cursor(v:lnum, len(getline(v:lnum))+1)
+ else
+ 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
+
+" Expression used to check whether we should skip a match with searchpair()
+function! s:SkipExpr()
+ let l = line('.')
+ let c = col('.')
+ if synIDattr(synID(l, c, 0), "name") =~ "[Ss]tring\\|[Cc]omment\\|[Ss]pecial\\|clojureRegexp\\|clojurePattern"
+ " Skip parens inside strings, comments, special elements
+ return 1
+ endif
+ if getline(l)[c-2] == "\\" && getline(l)[c-3] != "\\"
+ " Skip parens escaped by '\'
+ return 1
+ endif
+ return 0
+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( 'b:slimv_repl_buffer' ) || 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
+ if line[c-1] == '('
+ let p1 = searchpair( '(', '', ')', 'brnmWc', 's:SkipExpr()', matchb )
+ let p2 = searchpair( '(', '', ')', 'rnmW' , 's:SkipExpr()', matchf )
+ elseif line[c-1] == ')'
+ let p1 = searchpair( '(', '', ')', 'brnmW' , 's:SkipExpr()', matchb )
+ let p2 = searchpair( '(', '', ')', 'rnmWc', 's:SkipExpr()', matchf )
+ else
+ let p1 = searchpair( '(', '', ')', 'brnmW' , 's:SkipExpr()', matchb )
+ let p2 = searchpair( '(', '', ')', 'rnmW' , 's:SkipExpr()', matchf )
+ endif
+ if p1 != p2
+ " Number of opening and closing parens differ
+ return 0
+ endif
+
+ if &ft =~ s:fts_balancing_all_brackets
+ if line[c-1] == '['
+ let b1 = searchpair( '\[', '', '\]', 'brnmWc', 's:SkipExpr()', matchb )
+ let b2 = searchpair( '\[', '', '\]', 'rnmW' , 's:SkipExpr()', matchf )
+ elseif line[c-1] == ']'
+ let b1 = searchpair( '\[', '', '\]', 'brnmW' , 's:SkipExpr()', matchb )
+ let b2 = searchpair( '\[', '', '\]', 'rnmWc', 's:SkipExpr()', matchf )
+ else
+ let b1 = searchpair( '\[', '', '\]', 'brnmW' , 's:SkipExpr()', matchb )
+ let b2 = searchpair( '\[', '', '\]', 'rnmW' , 's:SkipExpr()', matchf )
+ endif
+ if b1 != b2
+ " Number of opening and closing brackets differ
+ return 0
+ endif
+ if line[c-1] == '{'
+ let b1 = searchpair( '{', '', '}', 'brnmWc', 's:SkipExpr()', matchb )
+ let b2 = searchpair( '{', '', '}', 'rnmW' , 's:SkipExpr()', matchf )
+ elseif line[c-1] == '}'
+ let b1 = searchpair( '{', '', '}', 'brnmW' , 's:SkipExpr()', matchb )
+ let b2 = searchpair( '{', '', '}', 'rnmWc', 's:SkipExpr()', matchf )
+ else
+ let b1 = searchpair( '{', '', '}', 'brnmW' , 's:SkipExpr()', matchb )
+ let b2 = searchpair( '{', '', '}', 'rnmW' , 's:SkipExpr()', matchf )
+ endif
+ if b1 != b2
+ " 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 =~ s:fts_balancing_all_brackets
+ 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 =~ s:fts_balancing_all_brackets
+ 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:SkipExpr()' )
+ if a:select
+ call searchpair( open, '', close, 'W', 's:SkipExpr()' )
+ let save_ve = &ve
+ set ve=all
+ normal! lvh
+ let &ve = save_ve
+ call searchpair( open, '', close, 'bW', 's:SkipExpr()' )
+ 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:SkipExpr()' )
+ call searchpair( open, '', close, 'bW', 's:SkipExpr()' )
+ normal! v
+ call searchpair( open, '', close, 'W', 's:SkipExpr()' )
+ if &selection != 'inclusive'
+ normal! l
+ endif
+ else
+ call searchpair( open, '', close, 'W', 's:SkipExpr()' )
+ 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:SkipExpr()')
+ let [bracket_line, bracket_col] = searchpairpos('\[', '', '\]', 'bWn', 's:SkipExpr()')
+ let [brace_line, brace_col] = searchpairpos('{', '', '}', 'bWn', 's:SkipExpr()')
+ 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:SkipExpr()')
+ let [bracket_line, bracket_col] = searchpairpos('\[', '', '\]', 'Wn', 's:SkipExpr()')
+ let [brace_line, brace_col] = searchpairpos('{', '', '}', 'Wn', 's:SkipExpr()')
+ 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:SkipExpr()', 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:SkipExpr()', 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:SkipExpr()', 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 =~ s:fts_balancing_all_brackets
+ " 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 retval = ""
+ if pumvisible()
+ let retval = "\<C-Y>"
+ endif
+ let save_ve = &ve
+ set ve=all
+ 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
+ let &ve = save_ve
+ return retval
+ 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
+ let &ve = save_ve
+ return retval
+ elseif line[pos] == a:close
+ call s:ReGatherUp()
+ let &ve = save_ve
+ return retval
+ endif
+ let open = escape( a:open , '[]' )
+ let close = escape( a:close, '[]' )
+ let newpos = searchpairpos( open, '', close, 'nW', 's:SkipExpr()' )
+ 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
+ let &ve = save_ve
+ return retval
+ endif
+ if len(nextline) > 0 && nextline[0] =~ '\]\|}' && &ft =~ s:fts_balancing_all_brackets
+ " Re-gather electric returns in the line of the closing ']' or '}'
+ call setline( line('.'), substitute( line, '\s*$', '', 'g' ) )
+ normal! Jxl
+ let &ve = save_ve
+ return retval
+ endif
+ elseif g:paredit_electric_return && line =~ '^\s*)'
+ " Re-gather electric returns in the current line
+ call s:ReGatherUp()
+ let &ve = save_ve
+ return retval
+ endif
+ if searchpair( open, '', close, 'W', 's:SkipExpr()' ) > 0
+ normal! l
+ endif
+ "TODO: indent after going to closing character
+ let &ve = save_ve
+ return retval
+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>"
+ else
+ " Character-pair is not empty, don't erase just move inside
+ return "\<Right>"
+ endif
+endfunction
+
+" Initialize yank position list
+function! s:InitYankPos()
+ call setreg( &clipboard == 'unnamed' ? '*' : '"', '' )
+ let s:yank_pos = []
+endfunction
+
+" Add position to the yank list
+function! s:AddYankPos( pos )
+ let s:yank_pos = [a:pos] + s:yank_pos
+endfunction
+
+" Remove the head of yank position list and return it
+function! s:RemoveYankPos()
+ if len(s:yank_pos) > 0
+ let pos = s:yank_pos[0]
+ let s:yank_pos = s:yank_pos[1:]
+ return pos
+ else
+ return 0
+ endif
+endfunction
+
+" Forward erasing a character in normal mode, do not check if current form balanced
+function! s:EraseFwd( count, startcol )
+ let line = getline( '.' )
+ let pos = col( '.' ) - 1
+ let reg = ''
+ let ve_save = &virtualedit
+ set virtualedit=all
+ let c = a:count
+ while c > 0
+ if line[pos] == '\' && line[pos+1] =~ b:any_matched_char && (pos < 1 || line[pos-1] != '\')
+ " Erasing an escaped matched character
+ let reg = reg . line[pos : pos+1]
+ let line = strpart( line, 0, pos ) . strpart( line, pos+2 )
+ elseif s:InsideComment() && line[pos] == ';' && a:startcol >= 0
+ " Erasing the whole comment, only when erasing a block of characters
+ let reg = reg . strpart( line, pos )
+ let line = strpart( line, 0, pos )
+ elseif s:InsideComment() || ( s:InsideString() && line[pos] != '"' )
+ " Erasing any character inside string or comment
+ let reg = reg . line[pos]
+ let line = strpart( line, 0, pos ) . strpart( line, pos+1 )
+ elseif pos > 0 && line[pos-1:pos] =~ b:any_matched_pair
+ if pos > a:startcol
+ " Erasing an empty character-pair
+ let p2 = s:RemoveYankPos()
+ let reg = strpart( reg, 0, p2 ) . line[pos-1] . strpart( reg, p2 )
+ let reg = reg . line[pos]
+ let line = strpart( line, 0, pos-1 ) . strpart( line, pos+1 )
+ let pos = pos - 1
+ normal! h
+ else
+ " Can't erase character-pair: it would move the cursor before startcol
+ let pos = pos + 1
+ normal! l
+ endif
+ elseif line[pos] =~ b:any_matched_char
+ " Character-pair is not empty, don't erase just move inside
+ call s:AddYankPos( len(reg) )
+ let pos = pos + 1
+ normal! l
+ elseif pos < len(line) && pos >= a:startcol
+ " Erasing a non-special character
+ let chars = split(strpart(line, pos), '\zs')
+ if len(chars) > 0
+ " Identify the character to be erased and it's length
+ " The length may be >1 if this is a multi-byte character
+ let ch = chars[0]
+ let reg = reg . ch
+ let line = strpart( line, 0, pos ) . strpart( line, pos+len(ch) )
+ endif
+ endif
+ let c = c - 1
+ endwhile
+ let &virtualedit = ve_save
+ call setline( '.', line )
+ call setreg( &clipboard == 'unnamed' ? '*' : '"', reg )
+endfunction
+
+" Backward erasing a character in normal mode, do not check if current form balanced
+function! s:EraseBck( count )
+ let line = getline( '.' )
+ let pos = col( '.' ) - 1
+ let reg = ''
+ let c = a:count
+ while c > 0 && pos > 0
+ if pos > 1 && line[pos-2] == '\' && line[pos-1] =~ b:any_matched_char && (pos < 3 || line[pos-3] != '\')
+ " Erasing an escaped matched character
+ let reg = reg . line[pos-2 : pos-1]
+ let line = strpart( line, 0, pos-2 ) . strpart( line, pos )
+ normal! h
+ let pos = pos - 1
+ elseif s:InsideComment() || ( s:InsideString() && line[pos-1] != '"' )
+ let reg = reg . line[pos-1]
+ let line = strpart( line, 0, pos-1 ) . strpart( line, pos )
+ elseif line[pos-1:pos] =~ b:any_matched_pair
+ " Erasing an empty character-pair
+ let p2 = s:RemoveYankPos()
+ let reg = strpart( reg, 0, p2 ) . line[pos-1] . strpart( reg, p2 )
+ let reg = reg . line[pos]
+ let line = strpart( line, 0, pos-1 ) . strpart( line, pos+1 )
+ elseif line[pos-1] =~ b:any_matched_char
+ " Character-pair is not empty, don't erase
+ call s:AddYankPos( len(reg) )
+ else
+ " Erasing a non-special character
+ let chars = split(strpart(line, 0, pos), '\zs')
+ if len(chars) > 0
+ " Identify the character to be erased and it's length
+ " The length may be >1 if this is a multi-byte character
+ let ch = chars[-1]
+ let reg = reg . ch
+ let line = strpart( line, 0, pos-len(ch) ) . strpart( line, pos )
+ let pos = pos - len(ch) + 1
+ endif
+ endif
+ normal! h
+ let pos = pos - 1
+ let c = c - 1
+ endwhile
+ call setline( '.', line )
+ call setreg( &clipboard == 'unnamed' ? '*' : '"', reg )
+endfunction
+
+" Forward erasing a character in normal mode
+function! PareditEraseFwd()
+ if !g:paredit_mode || !s:IsBalanced()
+ if v:count > 0
+ silent execute 'normal! ' . v:count . 'x'
+ else
+ normal! x
+ endif
+ return
+ endif
+
+ call s:InitYankPos()
+ call s:EraseFwd( v:count1, -1 )
+endfunction
+
+" Backward erasing a character in normal mode
+function! PareditEraseBck()
+ if !g:paredit_mode || !s:IsBalanced()
+ if v:count > 0
+ silent execute 'normal! ' . v:count . 'X'
+ else
+ normal! X
+ endif
+ return
+ endif
+
+ call s:InitYankPos()
+ call s:EraseBck( v:count1 )
+endfunction
+
+" Find beginning of previous element (atom or sub-expression) in a form
+" skip_whitespc: skip whitespaces before the previous element
+function! s:PrevElement( skip_whitespc )
+ let [l0, c0] = [line( '.' ), col( '.' )]
+ let symbol_pos = [0, 0]
+ let symbol_end = [0, 0]
+
+ " Move to the beginning of the prefix if any
+ let line = getline( '.' )
+ let c = col('.') - 1
+ if c > 0 && line[c-1] =~ s:any_macro_prefix
+ normal! h
+ endif
+
+ let moved = 0
+ while 1
+ " Go to previous character
+ if !moved
+ let [l1, c1] = [line( '.' ), col( '.' )]
+ let save_ww = &whichwrap
+ set whichwrap=
+ normal! h
+ let &whichwrap = save_ww
+ endif
+ let moved = 0
+ let [l, c] = [line( '.' ), col( '.' )]
+
+ if [l, c] == [l1, c1]
+ " Beginning of line reached
+ if symbol_pos != [0, 0]
+ let symbol_end = [l, c]
+ if !a:skip_whitespc && !s:InsideString()
+ " Newline before previous symbol
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c]
+ endif
+ endif
+ normal! k$
+ let [l, c] = [line( '.' ), col( '.' )]
+ if [l, c] == [l1, c1]
+ " Beginning of file reached: stop
+ call setpos( '.', [0, l0, c0, 0] )
+ return [0, 0]
+ endif
+ let moved = 1
+ elseif s:InsideComment()
+ " Skip comments
+ else
+ let line = getline( '.' )
+ if s:InsideString() && !(a:skip_whitespc && line[c] =~ '\s' && symbol_end != [0, 0])
+ let symbol_pos = [l, c]
+ elseif symbol_pos == [0, 0]
+ if line[c-1] =~ b:any_closing_char
+ " Skip to the beginning of this sub-expression
+ let symbol_pos = [l, c]
+ normal! %
+ let line2 = getline( '.' )
+ let c2 = col('.') - 1
+ if c2 > 0 && line2[c2-1] =~ s:any_macro_prefix
+ normal! h
+ endif
+ elseif line[c-1] =~ b:any_opening_char
+ " Opening delimiter found: stop
+ call setpos( '.', [0, l0, c0, 0] )
+ return [0, 0]
+ elseif line[c-1] =~ '\S'
+ " Previous symbol starting
+ let symbol_pos = [l, c]
+ endif
+ else
+ if line[c-1] =~ b:any_opening_char || (a:skip_whitespc && line[c-1] =~ '\S' && symbol_end != [0, 0])
+ " Previous symbol beginning reached, opening delimiter or second previous symbol starting
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c+1]
+ elseif line[c-1] =~ '\s' || symbol_pos[0] != l
+ " Whitespace before previous symbol
+ let symbol_end = [l, c]
+ if !a:skip_whitespc
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c+1]
+ endif
+ endif
+ endif
+ endif
+ endwhile
+endfunction
+
+" Find end of next element (atom or sub-expression) in a form
+" skip_whitespc: skip whitespaces after the next element
+function! s:NextElement( skip_whitespc )
+ let [l0, c0] = [line( '.' ), col( '.' )]
+ let symbol_pos = [0, 0]
+ let symbol_end = [0, 0]
+
+ while 1
+ " Go to next character
+ let [l1, c1] = [line( '.' ), col( '.' )]
+ let save_ww = &whichwrap
+ set whichwrap=
+ normal! l
+ let &whichwrap = save_ww
+ let [l, c] = [line( '.' ), col( '.' )]
+
+ " Skip comments
+ while [l, c] == [l1, c1] || s:InsideComment()
+ if symbol_pos != [0, 0]
+ let symbol_end = [l, c]
+ if !a:skip_whitespc && !s:InsideString()
+ " Next symbol ended with comment
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c + ([l, c] == [l1, c1])]
+ endif
+ endif
+ normal! 0j0
+ let [l, c] = [line( '.' ), col( '.' )]
+ if [l, c] == [l1, c1]
+ " End of file reached: stop
+ call setpos( '.', [0, l0, c0, 0] )
+ return [0, 0]
+ endif
+ endwhile
+
+ let line = getline( '.' )
+ if s:InsideString() && !(a:skip_whitespc && line[c-2] =~ '\s' && symbol_end != [0, 0])
+ let symbol_pos = [l, c]
+ elseif symbol_pos == [0, 0]
+ if line[c-1] =~ s:any_macro_prefix && line[c] =~ b:any_opening_char
+ " Skip to the end of this prefixed sub-expression
+ let symbol_pos = [l, c]
+ normal! l%
+ elseif line[c-1] =~ b:any_opening_char
+ " Skip to the end of this sub-expression
+ let symbol_pos = [l, c]
+ normal! %
+ elseif line[c-1] =~ b:any_closing_char
+ " Closing delimiter found: stop
+ call setpos( '.', [0, l0, c0, 0] )
+ return [0, 0]
+ elseif line[c-1] =~ '\S'
+ " Next symbol starting
+ let symbol_pos = [l, c]
+ endif
+ else
+ if line[c-1] =~ b:any_closing_char || (a:skip_whitespc && line[c-1] =~ '\S' && symbol_end != [0, 0])
+ " Next symbol ended, closing delimiter or second next symbol starting
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c]
+ elseif line[c-1] =~ '\s' || symbol_pos[0] != l
+ " Next symbol ending with whitespace
+ let symbol_end = [l, c]
+ if !a:skip_whitespc
+ call setpos( '.', [0, l0, c0, 0] )
+ return [l, c]
+ endif
+ endif
+ endif
+ endwhile
+endfunction
+
+" Move character from [l0, c0] to [l1, c1]
+" Set position to [l1, c1]
+function! s:MoveChar( l0, c0, l1, c1 )
+ let line = getline( a:l0 )
+ let c = line[a:c0-1]
+ if a:l1 == a:l0
+ " Move character inside line
+ if a:c1 > a:c0
+ let line = strpart( line, 0, a:c0-1 ) . strpart( line, a:c0, a:c1-a:c0-1 ) . c . strpart( line, a:c1-1 )
+ call setline( a:l0, line )
+ call setpos( '.', [0, a:l1, a:c1-1, 0] )
+ else
+ let line = strpart( line, 0, a:c1-1 ) . c . strpart( line, a:c1-1, a:c0-a:c1 ) . strpart( line, a:c0 )
+ call setline( a:l0, line )
+ call setpos( '.', [0, a:l1, a:c1, 0] )
+ endif
+ else
+ " Move character to another line
+ let line = strpart( line, 0, a:c0-1 ) . strpart( line, a:c0 )
+ call setline( a:l0, line )
+ let line1 = getline( a:l1 )
+ if a:c1 > 1
+ let line1 = strpart( line1, 0, a:c1-1 ) . c . strpart( line1, a:c1-1 )
+ call setline( a:l1, line1 )
+ call setpos( '.', [0, a:l1, a:c1, 0] )
+ else
+ let line1 = c . line1
+ call setline( a:l1, line1 )
+ call setpos( '.', [0, a:l1, 1, 0] )
+ endif
+ endif
+endfunction
+
+" Find a paren nearby to move
+function! s:FindParenNearby()
+ let line = getline( '.' )
+ let c0 = col( '.' )
+ if line[c0-1] !~ b:any_openclose_char
+ " OK, we are not standing on a paren to move, but check if there is one nearby
+ if (c0 < 2 || line[c0-2] !~ b:any_openclose_char) && line[c0] =~ b:any_openclose_char
+ normal! l
+ elseif c0 > 1 && line[c0-2] =~ b:any_openclose_char && line[c0] !~ b:any_openclose_char
+ normal! h
+ endif
+ endif
+
+ " Skip macro prefix character
+ let c0 = col( '.' )
+ if line[c0-1] =~ s:any_macro_prefix && line[c0] =~ b:any_opening_char
+ normal! l
+ endif
+
+ " If still not standing on a paren then find the next closing one
+ if line[c0-1] !~ b:any_openclose_char
+ call search(b:any_closing_char, 'W')
+ endif
+endfunction
+
+" Reindent current form
+function! PareditReindentForm()
+ let l = line('.')
+ let c = col('.')
+ let old_indent = len(matchstr(getline(l), '^\s*'))
+ normal! =ib
+ let new_indent = len(matchstr(getline(l), '^\s*'))
+ call cursor( l, c + new_indent - old_indent )
+endfunction
+
+" Move delimiter one atom or s-expression to the left
+function! PareditMoveLeft()
+ call s:FindParenNearby()
+
+ let line = getline( '.' )
+ let l0 = line( '.' )
+ let c0 = col( '.' )
+
+ if line[c0-1] =~ b:any_opening_char
+ let closing = 0
+ elseif line[c0-1] =~ b:any_closing_char
+ let closing = 1
+ else
+ " Can move only delimiters
+ return
+ endif
+
+ let [lp, cp] = s:GetReplPromptPos()
+ let [l1, c1] = s:PrevElement( closing )
+ if [l1, c1] == [0, 0]
+ " No previous element found
+ return
+ elseif [lp, cp] != [0, 0] && l0 >= lp && (l1 < lp || (l1 == lp && c1 < cp))
+ " Do not go before the last command prompt in the REPL buffer
+ return
+ endif
+ if !closing && c0 > 0 && line[c0-2] =~ s:any_macro_prefix
+ call s:MoveChar( l0, c0-1, l1, c1 )
+ call s:MoveChar( l0, c0 - (l0 != l1), l1, c1+1 )
+ let len = 2
+ else
+ call s:MoveChar( l0, c0, l1, c1 )
+ let len = 1
+ endif
+ let line = getline( '.' )
+ let c = col( '.' ) - 1
+ if closing && c+1 < len(line) && line[c+1] !~ b:any_wsclose_char
+ " Insert a space after if needed
+ execute "normal! a "
+ normal! h
+ endif
+ let line = getline( '.' )
+ let c = col( '.' ) - 1
+ if !closing && c > 0 && line[c-len] !~ b:any_wsopen_char
+ " Insert a space before if needed
+ if len > 1
+ execute "normal! hi "
+ normal! ll
+ else
+ execute "normal! i "
+ normal! l
+ endif
+ endif
+ call PareditReindentForm()
+endfunction
+
+" Move delimiter one atom or s-expression to the right
+function! PareditMoveRight()
+ call s:FindParenNearby()
+
+ "TODO: move ')' in '() xxx' leaves space
+ let line = getline( '.' )
+ let l0 = line( '.' )
+ let c0 = col( '.' )
+
+ if line[c0-1] =~ b:any_opening_char
+ let opening = 1
+ elseif line[c0-1] =~ b:any_closing_char
+ let opening = 0
+ else
+ " Can move only delimiters
+ return
+ endif
+
+ let [lp, cp] = s:GetReplPromptPos()
+ let [l1, c1] = s:NextElement( opening )
+ if [l1, c1] == [0, 0]
+ " No next element found
+ return
+ elseif [lp, cp] != [0, 0] && l0 < lp && l1 >= lp
+ " Do not go after the last command prompt in the REPL buffer
+ return
+ endif
+ if opening && c0 > 1 && line[c0-2] =~ s:any_macro_prefix
+ call s:MoveChar( l0, c0-1, l1, c1 )
+ call s:MoveChar( l0, c0-1, l1, c1 + (l0 != l1) )
+ let len = 2
+ else
+ call s:MoveChar( l0, c0, l1, c1 )
+ let len = 1
+ endif
+ let line = getline( '.' )
+ let c = col( '.' ) - 1
+ if opening && c > 0 && line[c-len] !~ b:any_wsopen_char
+ " Insert a space before if needed
+ if len > 1
+ execute "normal! hi "
+ normal! ll
+ else
+ execute "normal! i "
+ normal! l
+ endif
+ endif
+ let line = getline( '.' )
+ let c = col( '.' ) - 1
+ if !opening && c+1 < len(line) && line[c+1] !~ b:any_wsclose_char
+ " Insert a space after if needed
+ execute "normal! a "
+ normal! h
+ endif
+ call PareditReindentForm()
+endfunction
+
+" Find closing of the innermost structure: (...) or [...] or {...}
+" Return a list where first element is the closing character,
+" second and third is its position (line, column)
+function! s:FindClosing()
+ let l = line( '.' )
+ let c = col( '.' )
+ let paren = ''
+ let l2 = 0
+ let c2 = 0
+
+ call PareditFindClosing( '(', ')', 0 )
+ let lp = line( '.' )
+ let cp = col( '.' )
+ if [lp, cp] != [l, c]
+ " Do we have a closing ')'?
+ let paren = ')'
+ let l2 = lp
+ let c2 = cp
+ endif
+ call setpos( '.', [0, l, c, 0] )
+
+ if &ft =~ s:fts_balancing_all_brackets
+ call PareditFindClosing( '[', ']', 0 )
+ let lp = line( '.' )
+ let cp = col( '.' )
+ if [lp, cp] != [l, c] && (lp < l2 || (lp == l2 && cp < c2))
+ " Do we have a ']' closer?
+ let paren = ']'
+ let l2 = lp
+ let c2 = cp
+ endif
+ call setpos( '.', [0, l, c, 0] )
+
+ call PareditFindClosing( '{', '}', 0 )
+ let lp = line( '.' )
+ let cp = col( '.' )
+ if [lp, cp] != [l, c] && (lp < l2 || (lp == l2 && cp < c2))
+ " Do we have a '}' even closer?
+ let paren = '}'
+ let l2 = lp
+ let c2 = cp
+ endif
+ call setpos( '.', [0, l, c, 0] )
+ endif
+
+ return [paren, l2, c2]
+endfunction
+
+" Split list or string at the cursor position
+" Current symbol will be split into the second part
+function! PareditSplit()
+ if !g:paredit_mode || s:InsideComment()
+ return
+ endif
+
+ if s:InsideString()
+ normal! i" "
+ else
+ " Go back to the beginning of the current symbol
+ let c = col('.') - 1
+ if getline('.')[c] =~ '\S'
+ if c == 0 || (c > 0 && getline('.')[c-1] =~ b:any_wsopen_char)
+ " OK, we are standing on the first character of the symbol
+ else
+ normal! b
+ endif
+ endif
+
+ " First find which kind of paren is the innermost
+ let [p, l, c] = s:FindClosing()
+ if p !~ b:any_closing_char
+ " Not found any kind of parens
+ return
+ endif
+
+ " Delete all whitespaces around cursor position
+ while getline('.')[col('.')-1] =~ '\s'
+ normal! x
+ endwhile
+ while col('.') > 1 && getline('.')[col('.')-2] =~ '\s'
+ normal! X
+ endwhile
+
+ if p == ')'
+ normal! i) (
+ elseif p == '}'
+ normal! i} {
+ else
+ normal! i] [
+ endif
+ endif
+endfunction
+
+" Join two neighboring lists or strings
+function! PareditJoin()
+ if !g:paredit_mode || s:InsideComment() || s:InsideString()
+ return
+ endif
+
+ "TODO: skip parens in comments
+ let [l0, c0] = searchpos(b:any_matched_char, 'nbW')
+ let [l1, c1] = searchpos(b:any_matched_char, 'ncW')
+ if [l0, c0] == [0, 0] || [l1, c1] == [0, 0]
+ return
+ endif
+ let line0 = getline( l0 )
+ let line1 = getline( l1 )
+ let p0 = line0[c0-1]
+ let p1 = line1[c1-1]
+ if (p0 == ')' && p1 == '(') || (p0 == ']' && p1 == '[') || (p0 == '}' && p1 == '{') || (p0 == '"' && p1 == '"')
+ if l0 == l1
+ " First list ends on the same line where the second list begins
+ let line0 = strpart( line0, 0, c0-1 ) . ' ' . strpart( line0, c1 )
+ call setline( l0, line0 )
+ else
+ " First list ends on a line different from where the second list begins
+ let line0 = strpart( line0, 0, c0-1 )
+ let line1 = strpart( line1, 0, c1-1 ) . strpart( line1, c1 )
+ call setline( l0, line0 )
+ call setline( l1, line1 )
+ endif
+ endif
+endfunction
+
+" Wrap current visual block in parens of the given kind
+function! s:WrapSelection( open, close )
+ let l0 = line( "'<" )
+ let l1 = line( "'>" )
+ let c0 = col( "'<" )
+ let c1 = col( "'>" )
+ if &selection == 'inclusive'
+ let c1 = c1 + strlen(matchstr(getline(l1)[c1-1 :], '.'))
+ endif
+ if [l0, c0] == [0, 0] || [l1, c1] == [0, 0]
+ " No selection
+ return
+ endif
+ if l0 > l1 || (l0 == l1 && c0 > c1)
+ " Swap both ends of selection to make [l0, c0] < [l1, c1]
+ let [ltmp, ctmp] = [l0, c0]
+ let [l0, c0] = [l1, c1]
+ let [l1, c1] = [ltmp, ctmp]
+ endif
+ let save_ve = &ve
+ set ve=all
+ call setpos( '.', [0, l0, c0, 0] )
+ execute "normal! i" . a:open
+ call setpos( '.', [0, l1, c1 + (l0 == l1), 0] )
+ execute "normal! i" . a:close
+ let &ve = save_ve
+endfunction
+
+" Wrap current visual block in parens of the given kind
+" Keep visual mode
+function! PareditWrapSelection( open, close )
+ call s:WrapSelection( a:open, a:close )
+ " Always leave the cursor to the opening char's pos after
+ " wrapping selection.
+ if getline('.')[col('.')-1] =~ b:any_closing_char
+ normal! %
+ endif
+endfunction
+
+" Wrap current symbol in parens of the given kind
+" If standing on a paren then wrap the whole s-expression
+" Stand on the opening paren (if not wrapping in "")
+function! PareditWrap( open, close )
+ let isk_save = s:SetKeyword()
+ let sel_save = &selection
+ let line = line('.')
+ let column = col('.')
+ let line_content = getline(line)
+ let current_char = line_content[column - 1]
+
+ if a:open != '"' && current_char =~ b:any_openclose_char
+ execute "normal! " . "v%\<Esc>"
+ else
+ let inside_comment = s:InsideComment(line, column)
+
+ if current_char == '"' && !inside_comment
+ let escaped_quote = line_content[column - 2] == "\\"
+ if escaped_quote
+ execute "normal! " . "vh\<Esc>"
+ else
+ let is_starting_quote = 1
+ if column == 1 && line > 1
+ let endOfPreviousLine = col([line - 1, '$'])
+ if s:InsideString(line - 1, endOfPreviousLine - 1)
+ let previous_line_content = getline(line - 1)
+ if previous_line_content[endOfPreviousLine - 2] != '"'
+ let is_starting_quote = 0
+ elseif previous_line_content[endOfPreviousLine - 3] == "\\"
+ let is_starting_quote = 0
+ endif
+ endif
+ elseif s:InsideString(line, column - 1)
+ if line_content[column - 2] != '"'
+ let is_starting_quote = 0
+ elseif line_content[column - 3] == "\\"
+ let is_starting_quote = 0
+ endif
+ endif
+ let &selection="inclusive"
+ normal! v
+ if is_starting_quote
+ call search( '\\\@<!"', 'W', 's:SkipExpr()' )
+ else
+ call search( '\\\@<!"', 'bW', 's:SkipExpr()' )
+ endif
+ execute "normal! " . "\<Esc>"
+ endif
+ else
+ execute "normal! " . "viw\<Esc>"
+ endif
+ endif
+ call s:WrapSelection( a:open, a:close )
+ if a:open != '"'
+ normal! %
+ else
+ call cursor(line, column + 1)
+ endif
+ let &selection = sel_save
+ let &iskeyword = isk_save
+endfunction
+
+" Splice current list into the containing list
+function! PareditSplice()
+ if !g:paredit_mode
+ return
+ endif
+
+ " First find which kind of paren is the innermost
+ let [p, l, c] = s:FindClosing()
+ if p !~ b:any_closing_char
+ " Not found any kind of parens
+ return
+ endif
+
+ call setpos( '.', [0, l, c, 0] )
+ normal! %
+ let l = line( '.' )
+ let c = col( '.' )
+ normal! %x
+ call setpos( '.', [0, l, c, 0] )
+ normal! x
+ if c > 1 && getline('.')[c-2] =~ s:any_macro_prefix
+ normal! X
+ endif
+endfunction
+
+" Raise: replace containing form with the current symbol or sub-form
+function! PareditRaise()
+ let isk_save = s:SetKeyword()
+ let ch = getline('.')[col('.')-1]
+ if ch =~ b:any_openclose_char
+ " Jump to the closing char in order to find the outer
+ " closing char.
+ if ch =~ b:any_opening_char
+ normal! %
+ endif
+
+ let [p, l, c] = s:FindClosing()
+ if p =~ b:any_closing_char
+ " Raise sub-form and re-indent
+ exe "normal! y%d%da" . p
+ if getline('.')[col('.')-1] == ' '
+ normal! "0p=%
+ else
+ normal! "0P=%
+ endif
+ elseif ch =~ b:any_opening_char
+ " Restore position if there is no appropriate
+ " closing char.
+ normal! %
+ endif
+ else
+ let [p, l, c] = s:FindClosing()
+ if p =~ b:any_closing_char
+ " Raise symbol
+ exe "normal! yiwda" . p
+ normal! "0Pb
+ endif
+ endif
+ let &iskeyword = isk_save
+endfunction
+
+" =====================================================================
+" Autocommands
+" =====================================================================
+
+if !exists("g:paredit_disable_lisp")
+ au FileType lisp call PareditInitBuffer()
+endif
+
+if !exists("g:paredit_disable_clojure")
+ au FileType *clojure* call PareditInitBuffer()
+endif
+
+if !exists("g:paredit_disable_hy")
+ au FileType hy call PareditInitBuffer()
+endif
+
+if !exists("g:paredit_disable_scheme")
+ au FileType scheme call PareditInitBuffer()
+ au FileType racket call PareditInitBuffer()
+endif
+
+if !exists("g:paredit_disable_shen")
+ au FileType shen call PareditInitBuffer()
+endif