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vim/bundle/vis/plugin/cecutil.vim

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" cecutil.vim : save/restore window position
" save/restore mark position
" save/restore selected user maps
" Author: Charles E. Campbell
" Version: 18h ASTRO-ONLY
" Date: Oct 16, 2012
"
" Saving Restoring Destroying Marks: {{{1
" call SaveMark(markname) let savemark= SaveMark(markname)
" call RestoreMark(markname) call RestoreMark(savemark)
" call DestroyMark(markname)
" commands: SM RM DM
"
" Saving Restoring Destroying Window Position: {{{1
" call SaveWinPosn() let winposn= SaveWinPosn()
" call RestoreWinPosn() call RestoreWinPosn(winposn)
" \swp : save current window/buffer's position
" \rwp : restore current window/buffer's previous position
" commands: SWP RWP
"
" Saving And Restoring User Maps: {{{1
" call SaveUserMaps(mapmode,maplead,mapchx,suffix)
" call RestoreUserMaps(suffix)
"
" GetLatestVimScripts: 1066 1 :AutoInstall: cecutil.vim
"
" You believe that God is one. You do well. The demons also {{{1
" believe, and shudder. But do you want to know, vain man, that
" faith apart from works is dead? (James 2:19,20 WEB)
"redraw!|call inputsave()|call input("Press <cr> to continue")|call inputrestore()
" ---------------------------------------------------------------------
" Load Once: {{{1
if &cp || exists("g:loaded_cecutil")
finish
endif
let g:loaded_cecutil = "v18h"
let s:keepcpo = &cpo
set cpo&vim
"DechoRemOn
" =======================
" Public Interface: {{{1
" =======================
" ---------------------------------------------------------------------
" Map Interface: {{{2
if !hasmapto('<Plug>SaveWinPosn')
map <unique> <Leader>swp <Plug>SaveWinPosn
endif
if !hasmapto('<Plug>RestoreWinPosn')
map <unique> <Leader>rwp <Plug>RestoreWinPosn
endif
nmap <silent> <Plug>SaveWinPosn :call SaveWinPosn()<CR>
nmap <silent> <Plug>RestoreWinPosn :call RestoreWinPosn()<CR>
" ---------------------------------------------------------------------
" Command Interface: {{{2
com! -bar -nargs=0 SWP call SaveWinPosn()
com! -bar -nargs=? RWP call RestoreWinPosn(<args>)
com! -bar -nargs=1 SM call SaveMark(<q-args>)
com! -bar -nargs=1 RM call RestoreMark(<q-args>)
com! -bar -nargs=1 DM call DestroyMark(<q-args>)
com! -bar -nargs=1 WLR call s:WinLineRestore(<q-args>)
if v:version < 630
let s:modifier= "sil! "
else
let s:modifier= "sil! keepj "
endif
" ===============
" Functions: {{{1
" ===============
" ---------------------------------------------------------------------
" SaveWinPosn: {{{2
" let winposn= SaveWinPosn() will save window position in winposn variable
" call SaveWinPosn() will save window position in b:cecutil_winposn{b:cecutil_iwinposn}
" let winposn= SaveWinPosn(0) will *only* save window position in winposn variable (no stacking done)
fun! SaveWinPosn(...)
" echomsg "Decho: SaveWinPosn() a:0=".a:0
if line("$") == 1 && getline(1) == ""
" echomsg "Decho: SaveWinPosn : empty buffer"
return ""
endif
let so_keep = &l:so
let siso_keep = &siso
let ss_keep = &l:ss
setlocal so=0 siso=0 ss=0
let swline = line(".") " save-window line in file
let swcol = col(".") " save-window column in file
if swcol >= col("$")
let swcol= swcol + virtcol(".") - virtcol("$") " adjust for virtual edit (cursor past end-of-line)
endif
let swwline = winline() - 1 " save-window window line
let swwcol = virtcol(".") - wincol() " save-window window column
let savedposn = ""
" echomsg "Decho: sw[".swline.",".swcol."] sww[".swwline.",".swwcol."]"
let savedposn = "call GoWinbufnr(".winbufnr(0).")"
let savedposn = savedposn."|".s:modifier.swline
let savedposn = savedposn."|".s:modifier."norm! 0z\<cr>"
if swwline > 0
let savedposn= savedposn.":".s:modifier."call s:WinLineRestore(".(swwline+1).")\<cr>"
endif
if swwcol > 0
let savedposn= savedposn.":".s:modifier."norm! 0".swwcol."zl\<cr>"
endif
let savedposn = savedposn.":".s:modifier."call cursor(".swline.",".swcol.")\<cr>"
" save window position in
" b:cecutil_winposn_{iwinposn} (stack)
" only when SaveWinPosn() is used
if a:0 == 0
if !exists("b:cecutil_iwinposn")
let b:cecutil_iwinposn= 1
else
let b:cecutil_iwinposn= b:cecutil_iwinposn + 1
endif
" echomsg "Decho: saving posn to SWP stack"
let b:cecutil_winposn{b:cecutil_iwinposn}= savedposn
endif
let &l:so = so_keep
let &siso = siso_keep
let &l:ss = ss_keep
" if exists("b:cecutil_iwinposn") " Decho
" echomsg "Decho: b:cecutil_winpos{".b:cecutil_iwinposn."}[".b:cecutil_winposn{b:cecutil_iwinposn}."]"
" else " Decho
" echomsg "Decho: b:cecutil_iwinposn doesn't exist"
" endif " Decho
" echomsg "Decho: SaveWinPosn [".savedposn."]"
return savedposn
endfun
" ---------------------------------------------------------------------
" RestoreWinPosn: {{{2
" call RestoreWinPosn()
" call RestoreWinPosn(winposn)
fun! RestoreWinPosn(...)
" echomsg "Decho: RestoreWinPosn() a:0=".a:0
" echomsg "Decho: getline(1)<".getline(1).">"
" echomsg "Decho: line(.)=".line(".")
if line("$") == 1 && getline(1) == ""
" echomsg "Decho: RestoreWinPosn : empty buffer"
return ""
endif
let so_keep = &l:so
let siso_keep = &l:siso
let ss_keep = &l:ss
setlocal so=0 siso=0 ss=0
if a:0 == 0 || a:1 == ""
" use saved window position in b:cecutil_winposn{b:cecutil_iwinposn} if it exists
if exists("b:cecutil_iwinposn") && exists("b:cecutil_winposn{b:cecutil_iwinposn}")
" echomsg "Decho: using stack b:cecutil_winposn{".b:cecutil_iwinposn."}<".b:cecutil_winposn{b:cecutil_iwinposn}.">"
try
exe s:modifier.b:cecutil_winposn{b:cecutil_iwinposn}
catch /^Vim\%((\a\+)\)\=:E749/
" ignore empty buffer error messages
endtry
" normally drop top-of-stack by one
" but while new top-of-stack doesn't exist
" drop top-of-stack index by one again
if b:cecutil_iwinposn >= 1
unlet b:cecutil_winposn{b:cecutil_iwinposn}
let b:cecutil_iwinposn= b:cecutil_iwinposn - 1
while b:cecutil_iwinposn >= 1 && !exists("b:cecutil_winposn{b:cecutil_iwinposn}")
let b:cecutil_iwinposn= b:cecutil_iwinposn - 1
endwhile
if b:cecutil_iwinposn < 1
unlet b:cecutil_iwinposn
endif
endif
else
echohl WarningMsg
echomsg "***warning*** need to SaveWinPosn first!"
echohl None
endif
else " handle input argument
" echomsg "Decho: using input a:1<".a:1.">"
" use window position passed to this function
exe a:1
" remove a:1 pattern from b:cecutil_winposn{b:cecutil_iwinposn} stack
if exists("b:cecutil_iwinposn")
let jwinposn= b:cecutil_iwinposn
while jwinposn >= 1 " search for a:1 in iwinposn..1
if exists("b:cecutil_winposn{jwinposn}") " if it exists
if a:1 == b:cecutil_winposn{jwinposn} " and the pattern matches
unlet b:cecutil_winposn{jwinposn} " unlet it
if jwinposn == b:cecutil_iwinposn " if at top-of-stack
let b:cecutil_iwinposn= b:cecutil_iwinposn - 1 " drop stacktop by one
endif
endif
endif
let jwinposn= jwinposn - 1
endwhile
endif
endif
" Seems to be something odd: vertical motions after RWP
" cause jump to first column. The following fixes that.
" Note: was using wincol()>1, but with signs, a cursor
" at column 1 yields wincol()==3. Beeping ensued.
let vekeep= &ve
set ve=all
if virtcol('.') > 1
exe s:modifier."norm! hl"
elseif virtcol(".") < virtcol("$")
exe s:modifier."norm! lh"
endif
let &ve= vekeep
let &l:so = so_keep
let &l:siso = siso_keep
let &l:ss = ss_keep
" echomsg "Decho: RestoreWinPosn"
endfun
" ---------------------------------------------------------------------
" s:WinLineRestore: {{{2
fun! s:WinLineRestore(swwline)
" echomsg "Decho: s:WinLineRestore(swwline=".a:swwline.")"
while winline() < a:swwline
let curwinline= winline()
exe s:modifier."norm! \<c-y>"
if curwinline == winline()
break
endif
endwhile
" echomsg "Decho: s:WinLineRestore"
endfun
" ---------------------------------------------------------------------
" GoWinbufnr: go to window holding given buffer (by number) {{{2
" Prefers current window; if its buffer number doesn't match,
" then will try from topleft to bottom right
fun! GoWinbufnr(bufnum)
" call Dfunc("GoWinbufnr(".a:bufnum.")")
if winbufnr(0) == a:bufnum
" call Dret("GoWinbufnr : winbufnr(0)==a:bufnum")
return
endif
winc t
let first=1
while winbufnr(0) != a:bufnum && (first || winnr() != 1)
winc w
let first= 0
endwhile
" call Dret("GoWinbufnr")
endfun
" ---------------------------------------------------------------------
" SaveMark: sets up a string saving a mark position. {{{2
" For example, SaveMark("a")
" Also sets up a global variable, g:savemark_{markname}
fun! SaveMark(markname)
" call Dfunc("SaveMark(markname<".a:markname.">)")
let markname= a:markname
if strpart(markname,0,1) !~ '\a'
let markname= strpart(markname,1,1)
endif
" call Decho("markname=".markname)
let lzkeep = &lz
set lz
if 1 <= line("'".markname) && line("'".markname) <= line("$")
let winposn = SaveWinPosn(0)
exe s:modifier."norm! `".markname
let savemark = SaveWinPosn(0)
let g:savemark_{markname} = savemark
let savemark = markname.savemark
call RestoreWinPosn(winposn)
else
let g:savemark_{markname} = ""
let savemark = ""
endif
let &lz= lzkeep
" call Dret("SaveMark : savemark<".savemark.">")
return savemark
endfun
" ---------------------------------------------------------------------
" RestoreMark: {{{2
" call RestoreMark("a") -or- call RestoreMark(savemark)
fun! RestoreMark(markname)
" call Dfunc("RestoreMark(markname<".a:markname.">)")
if strlen(a:markname) <= 0
" call Dret("RestoreMark : no such mark")
return
endif
let markname= strpart(a:markname,0,1)
if markname !~ '\a'
" handles 'a -> a styles
let markname= strpart(a:markname,1,1)
endif
" call Decho("markname=".markname." strlen(a:markname)=".strlen(a:markname))
let lzkeep = &lz
set lz
let winposn = SaveWinPosn(0)
if strlen(a:markname) <= 2
if exists("g:savemark_{markname}") && strlen(g:savemark_{markname}) != 0
" use global variable g:savemark_{markname}
" call Decho("use savemark list")
call RestoreWinPosn(g:savemark_{markname})
exe "norm! m".markname
endif
else
" markname is a savemark command (string)
" call Decho("use savemark command")
let markcmd= strpart(a:markname,1)
call RestoreWinPosn(markcmd)
exe "norm! m".markname
endif
call RestoreWinPosn(winposn)
let &lz = lzkeep
" call Dret("RestoreMark")
endfun
" ---------------------------------------------------------------------
" DestroyMark: {{{2
" call DestroyMark("a") -- destroys mark
fun! DestroyMark(markname)
" call Dfunc("DestroyMark(markname<".a:markname.">)")
" save options and set to standard values
let reportkeep= &report
let lzkeep = &lz
set lz report=10000
let markname= strpart(a:markname,0,1)
if markname !~ '\a'
" handles 'a -> a styles
let markname= strpart(a:markname,1,1)
endif
" call Decho("markname=".markname)
let curmod = &mod
let winposn = SaveWinPosn(0)
1
let lineone = getline(".")
exe "k".markname
d
put! =lineone
let &mod = curmod
call RestoreWinPosn(winposn)
" restore options to user settings
let &report = reportkeep
let &lz = lzkeep
" call Dret("DestroyMark")
endfun
" ---------------------------------------------------------------------
" QArgSplitter: to avoid \ processing by <f-args>, <q-args> is needed. {{{2
" However, <q-args> doesn't split at all, so this one returns a list
" with splits at all whitespace (only!), plus a leading length-of-list.
" The resulting list: qarglist[0] corresponds to a:0
" qarglist[i] corresponds to a:{i}
fun! QArgSplitter(qarg)
" call Dfunc("QArgSplitter(qarg<".a:qarg.">)")
let qarglist = split(a:qarg)
let qarglistlen = len(qarglist)
let qarglist = insert(qarglist,qarglistlen)
" call Dret("QArgSplitter ".string(qarglist))
return qarglist
endfun
" ---------------------------------------------------------------------
" ListWinPosn: {{{2
"fun! ListWinPosn() " Decho
" if !exists("b:cecutil_iwinposn") || b:cecutil_iwinposn == 0 " Decho
" call Decho("nothing on SWP stack") " Decho
" else " Decho
" let jwinposn= b:cecutil_iwinposn " Decho
" while jwinposn >= 1 " Decho
" if exists("b:cecutil_winposn{jwinposn}") " Decho
" call Decho("winposn{".jwinposn."}<".b:cecutil_winposn{jwinposn}.">") " Decho
" else " Decho
" call Decho("winposn{".jwinposn."} -- doesn't exist") " Decho
" endif " Decho
" let jwinposn= jwinposn - 1 " Decho
" endwhile " Decho
" endif " Decho
"endfun " Decho
"com! -nargs=0 LWP call ListWinPosn() " Decho
" ---------------------------------------------------------------------
" SaveUserMaps: this function sets up a script-variable (s:restoremap) {{{2
" which can be used to restore user maps later with
" call RestoreUserMaps()
"
" mapmode - see :help maparg for details (n v o i c l "")
" ex. "n" = Normal
" The letters "b" and "u" are optional prefixes;
" The "u" means that the map will also be unmapped
" The "b" means that the map has a <buffer> qualifier
" ex. "un" = Normal + unmapping
" ex. "bn" = Normal + <buffer>
" ex. "bun" = Normal + <buffer> + unmapping
" ex. "ubn" = Normal + <buffer> + unmapping
" maplead - see mapchx
" mapchx - "<something>" handled as a single map item.
" ex. "<left>"
" - "string" a string of single letters which are actually
" multiple two-letter maps (using the maplead:
" maplead . each_character_in_string)
" ex. maplead="\" and mapchx="abc" saves user mappings for
" \a, \b, and \c
" Of course, if maplead is "", then for mapchx="abc",
" mappings for a, b, and c are saved.
" - :something handled as a single map item, w/o the ":"
" ex. mapchx= ":abc" will save a mapping for "abc"
" suffix - a string unique to your plugin
" ex. suffix= "DrawIt"
fun! SaveUserMaps(mapmode,maplead,mapchx,suffix)
" call Dfunc("SaveUserMaps(mapmode<".a:mapmode."> maplead<".a:maplead."> mapchx<".a:mapchx."> suffix<".a:suffix.">)")
if !exists("s:restoremap_{a:suffix}")
" initialize restoremap_suffix to null string
let s:restoremap_{a:suffix}= ""
endif
" set up dounmap: if 1, then save and unmap (a:mapmode leads with a "u")
" if 0, save only
let mapmode = a:mapmode
let dounmap = 0
let dobuffer = ""
while mapmode =~ '^[bu]'
if mapmode =~ '^u'
let dounmap = 1
let mapmode = strpart(a:mapmode,1)
elseif mapmode =~ '^b'
let dobuffer = "<buffer> "
let mapmode = strpart(a:mapmode,1)
endif
endwhile
" call Decho("dounmap=".dounmap." dobuffer<".dobuffer.">")
" save single map :...something...
if strpart(a:mapchx,0,1) == ':'
" call Decho("save single map :...something...")
let amap= strpart(a:mapchx,1)
if amap == "|" || amap == "\<c-v>"
let amap= "\<c-v>".amap
endif
let amap = a:maplead.amap
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|:sil! ".mapmode."unmap ".dobuffer.amap
if maparg(amap,mapmode) != ""
let maprhs = substitute(maparg(amap,mapmode),'|','<bar>','ge')
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|:".mapmode."map ".dobuffer.amap." ".maprhs
endif
if dounmap
exe "sil! ".mapmode."unmap ".dobuffer.amap
endif
" save single map <something>
elseif strpart(a:mapchx,0,1) == '<'
" call Decho("save single map <something>")
let amap = a:mapchx
if amap == "|" || amap == "\<c-v>"
let amap= "\<c-v>".amap
" call Decho("amap[[".amap."]]")
endif
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|sil! ".mapmode."unmap ".dobuffer.amap
if maparg(a:mapchx,mapmode) != ""
let maprhs = substitute(maparg(amap,mapmode),'|','<bar>','ge')
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|".mapmode."map ".dobuffer.amap." ".maprhs
endif
if dounmap
exe "sil! ".mapmode."unmap ".dobuffer.amap
endif
" save multiple maps
else
" call Decho("save multiple maps")
let i= 1
while i <= strlen(a:mapchx)
let amap= a:maplead.strpart(a:mapchx,i-1,1)
if amap == "|" || amap == "\<c-v>"
let amap= "\<c-v>".amap
endif
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|sil! ".mapmode."unmap ".dobuffer.amap
if maparg(amap,mapmode) != ""
let maprhs = substitute(maparg(amap,mapmode),'|','<bar>','ge')
let s:restoremap_{a:suffix} = s:restoremap_{a:suffix}."|".mapmode."map ".dobuffer.amap." ".maprhs
endif
if dounmap
exe "sil! ".mapmode."unmap ".dobuffer.amap
endif
let i= i + 1
endwhile
endif
" call Dret("SaveUserMaps : restoremap_".a:suffix.": ".s:restoremap_{a:suffix})
endfun
" ---------------------------------------------------------------------
" RestoreUserMaps: {{{2
" Used to restore user maps saved by SaveUserMaps()
fun! RestoreUserMaps(suffix)
" call Dfunc("RestoreUserMaps(suffix<".a:suffix.">)")
if exists("s:restoremap_{a:suffix}")
let s:restoremap_{a:suffix}= substitute(s:restoremap_{a:suffix},'|\s*$','','e')
if s:restoremap_{a:suffix} != ""
" call Decho("exe ".s:restoremap_{a:suffix})
exe "sil! ".s:restoremap_{a:suffix}
endif
unlet s:restoremap_{a:suffix}
endif
" call Dret("RestoreUserMaps")
endfun
" ==============
" Restore: {{{1
" ==============
let &cpo= s:keepcpo
unlet s:keepcpo
" ================
" Modelines: {{{1
" ================
" vim: ts=4 fdm=marker