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Insert mode mapping, space adding, LaTeX/function replacements

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This commit is contained in:
Tim Pope 2006-10-29 03:44:12 +00:00
parent 0229c93f94
commit 736d1b5482
1 changed files with 186 additions and 40 deletions
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226
plugin/surround.vim
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@ -38,13 +38,20 @@
" Old Keystroke New
" Hello w*orld! yssB {Hello world!}
"
" Finally, in visual mode, a simple "s" with an argument wraps the selection.
" In visual mode, a simple "s" with an argument wraps the selection.
" Note that "s" already has a valid meaning in visual mode, but it is
" identical to "c". If you have muscle memory for "s" and would like to use a
" different key, add your own mapping and the existing one will be disabled.
"
" vmap S <Plug>VSurround
"
" Finally, there is an experimental insert mode mapping on <C-S>. Beware that
" this won't work on terminals with flow control (if you accidentally freeze
" your terminal, use <C-Q> to unfreeze it). This inserts the surrounding
" characters and puts the cursor between them. If, immediately after <C-S>
" and before the replacement carriage return is pressed, the prefix, cursor,
" and suffix will be placed on three separate lines.
"
" Replacements:
"
" A replacement argument is a single character. The default behavior is to
@ -80,7 +87,7 @@
" Issues:
"
" Vim could potentially get confused when deleting/changing occurs at the very
" end of the line. Report any repeatable instances of this.
" end of the line. Pleae report any repeatable instances of this.
"
" Do we need to use inputsave() / inputrestore() with the tag replacement?
"
@ -88,7 +95,11 @@
" similar to with tags.
"
" Reindenting is handled haphazardly. Need to decide the most appropriate
" behavior and implement it.
" behavior and implement it. Right now one can do :let b:surround_indent = 1
" (or the global equivalent) to enable automatic reindenting by Vim; should
" this be the default?
"
" It would be nice if . would work to repeat an operation.
" ============================================================================
@ -103,12 +114,63 @@ let g:loaded_surround = 1
let s:cpo_save = &cpo
set cpo&vim
" Input functions {{{1
function! s:getchar()
let c = getchar()
if c =~ '^\d\+$'
let c = nr2char(c)
endif
return c
endfunction
function! s:inputtarget()
let c = s:getchar()
if c =~ "\<Esc>\|\<C-C>\|\0"
return ""
else
return c
endif
endfunction
function! s:inputreplacement()
"echo '-- SURROUND --'
let c = s:getchar()
if c == " "
let c = c . s:getchar()
endif
if c =~ "\<Esc>\|\<C-C>\|\0"
return ""
else
return c
endif
endfunction
function! s:beep()
exe "norm! \<Esc>"
return ""
endfunction
function! s:redraw()
redraw
return ""
endfunction
" }}}1
function! s:wrap(string,char,...) " {{{1
let keeper = a:string
let newchar = a:char
let linemode = a:0 ? a:1 : 0
let before = ""
let after = ""
" Duplicate b's are just placeholders
let pairs = "b()B{}b[]b<>"
let pairs = "b()B{}r[]a<>"
let extraspace = ""
if newchar =~ '^ '
let newchar = strpart(newchar,1)
let extraspace = ' '
endif
let idx = stridx(pairs,newchar)
if exists("b:surround_".char2nr(newchar))
let before = matchstr(b:surround_{char2nr(newchar)},'.*\ze\n')
@ -119,7 +181,7 @@ function! s:wrap(string,char,...) " {{{1
elseif newchar == "p"
let before = "\n"
let after = "\n\n"
elseif newchar == "t" || newchar == "<"
elseif newchar == "t" || newchar == "T" || newchar == "<"
let dounmapr = 0
let dounmapb = 0
if !mapcheck("<CR>","c")
@ -130,7 +192,12 @@ function! s:wrap(string,char,...) " {{{1
let dounmapb= 1
cnoremap > ><CR>
endif
let tag = input("<")
let default = ""
if newchar == "T"
let default = matchstr(@@,'<\zs.\{-\}\ze>')
endif
let tag = input("<",default)
echo "<".substitute(tag,'>*$','>','')
if dounmapr
silent! cunmap <CR>
endif
@ -138,12 +205,30 @@ function! s:wrap(string,char,...) " {{{1
silent! cunmap >
endif
if tag != ""
let tag = substitute(tag,'>$','','')
let tag = substitute(tag,'>*$','','')
let before = "<".tag.">"
let after = "</".substitute(tag," .*",'','').">"
else
let before = ""
let after = ""
endif
elseif newchar == 'l' || newchar == '\'
let dounmapr = 0
if !mapcheck("<CR>","c")
let dounmapr = 1
cnoremap <silent> <CR> <C-R>=<SID>closematch()<CR><CR>
endif
let env = input('\begin','{')
echo '\begin'.env
if dounmapr
silent! cunmap <CR>
endif
if env != ""
let before = '\begin'.env
let after = '\end'.matchstr(env,'[^}]*').'}'
endif
elseif newchar == 'f'
let func = input('function: ')
if func != ""
let before = substitute(func,'($','','').'('
let after = ')'
endif
elseif idx >= 0
let spc = (idx % 3) == 1 ? " " : ""
@ -164,16 +249,52 @@ function! s:wrap(string,char,...) " {{{1
let initspaces = matchstr(keeper,'\%^\s*')
let keeper = initspaces.before."\n".keeper."\n".initspaces.after
else
let keeper = before.keeper.after
let keeper = before.extraspace.keeper.extraspace.after
endif
return keeper
endfunction " }}}1
function! s:insert(...) " {{{1
" Optional argument causes the result to appear on 3 lines, not 1
let linemode = a:0 ? a:1 : 0
let char = s:inputreplacement()
while char == "\<CR>"
" TODO: use total count for additional blank lines
let linemode = linemode + 1
let char = s:inputreplacement()
endwhile
if char == ""
return ""
endif
" We could just use null, but nooooo, that won't work
let text = s:wrap("\1",char,0)
if linemode
return substitute(text,'\s*\%x01\s*',"\<CR>",'')."\<C-O>O"
else
let len = strlen(substitute(substitute(text,'.*\%x01','',''),'.','.','g'))
let left = ""
while len > 0
let len = len - 1
let left = left . "\<Left>"
endwhile
return substitute(text,'\%x01','','') . left
endif
endfunction " }}}1
function! s:reindent() " {{{1
if @@ =~ '\n' && (exists("b:surround_indent") || exists("g:surround_indent"))
silent norm! '[=']
endif
endfunction " }}}1
function! s:dosurround(...) " {{{1
let char = nr2char(a:0 ? a:1 : getchar())
let newchar = a:0 > 1 ? nr2char(a:2) : ""
if newchar == "\<Esc>" || newchar == "\<C-C>"
return s:beep()
let char = (a:0 ? a:1 : s:inputtarget())
let newchar = ""
if a:0 > 1
let newchar = a:2
if newchar == "\<Esc>" || newchar == "\<C-C>" || newchar == ""
return s:beep()
endif
endif
let append = ""
let original = @@
@ -191,7 +312,7 @@ function! s:dosurround(...) " {{{1
let append = matchstr(keeper,'\n*\%$')
let keeper = substitute(keeper,'\n*\%$','','')
let @@ = ""
elseif char == "s"
elseif char == "s" || char == "w" || char == "W"
" Do nothing
let @@ = ""
elseif char =~ "[\"'`]"
@ -241,24 +362,28 @@ function! s:dosurround(...) " {{{1
let @@ = substitute(keeper,'\n\s+\n','\n\n','g')
call setreg('"','','a'.regtype)
silent exe "norm! ".(a:0 < 2 ? "" : "").pcmd.'`['
"if @@ =~ '\n'
"silent norm! '[=']
"endif
call s:reindent()
if getline('.') =~ '^\s\+$' && keeper =~ '^\s*\n'
silent norm! cc
endif
let @@ = removed
endfunction " }}}1
function! s:beep()
exe "norm! \<Esc>"
return ""
endfunction
function! s:changesurround() " {{{1
let a = s:inputtarget()
if a == ""
return s:beep()
endif
let b = s:inputreplacement()
if b == ""
return s:beep()
endif
call s:dosurround(a,b)
endfunction " }}}1
function! s:opfunc(type) " {{{1
let char = nr2char(getchar())
let g:count = v:count1
if char == "\<Esc>" || char == "\<C-C>"
let char = s:inputreplacement()
if char == ""
return s:beep()
endif
let sel_save = &selection
@ -289,32 +414,53 @@ function! s:opfunc(type) " {{{1
let keeper = s:wrap(keeper,char,linemode) . append
let @@ = keeper
silent norm! gvp`[
"if linemode
"silent norm! '[=']
"endif
if linemode
call s:reindent()
endif
let @@ = reg_save
let &selection = sel_save
endfunction " }}}1
function! s:yss() range
echo a:firstline." ".a:lastline
function! s:closematch()
" Close an open (, {, [, or < on the command line.
let tail = matchstr(getcmdline(),'.[^\[\](){}<>]*$')
if tail =~ '^\[.\+'
return "]"
elseif tail =~ '^(.\+'
return ")"
elseif tail =~ '^{.\+'
return "}"
elseif tail =~ '^<.+'
return ">"
else
return ""
endif
endfunction
nnoremap <silent> <Plug>DSurround :call <SID>dosurround(getchar())<CR>
nnoremap <silent> <Plug>CSurround :call <SID>dosurround(getchar(),getchar())<CR>
nnoremap <silent> <SID>YSurround :set opfunc=<SID>opfunc<CR>g@
nnoremap <silent> <Plug>YSurroundS :<C-U> call <SID>opfunc(v:count1)<CR>
nnoremap <script> <Plug>YSurround <SID>YSurround
vnoremap <silent> <Plug>VSurround :<C-U> call <SID>opfunc(visualmode())<CR>
function! s:closedcmd()
let cm = s:closematch()
return getcmdline() . cm
endfunction
nnoremap <silent> <Plug>DSurround :call <SID>dosurround(<SID>inputtarget())<CR>
nnoremap <silent> <Plug>CSurround :call <SID>changesurround()<CR>
nnoremap <silent> <Plug>YSurround :set opfunc=<SID>opfunc<CR>g@
nnoremap <silent> <Plug>YSSurround :<C-U>call <SID>opfunc(v:count1)<CR>
vnoremap <silent> <Plug>VSurround :<C-U>call <SID>opfunc(visualmode())<CR>
inoremap <silent> <Plug>ISurround <C-R>=<SID>insert()<CR>
nmap ds <Plug>DSurround
nmap cs <Plug>CSurround
nmap ys <Plug>YSurround
"nmap <script> yss :<C-U>exe 'norm ^ys'.v:count1.'$'.nr2char(getchar())<CR>
nmap <script> yss <SID>YSurroundS
nmap yss <Plug>YSSurround
if !hasmapto("<Plug>VSurround","v")
vmap s <Plug>VSurround
endif
if !hasmapto("<Plug>ISurround","i")
imap <C-S> <Plug>ISurround
endif
let &cpo = s:cpo_save
" vim:set ft=vim ff=unix ts=8 sw=4 sts=4: