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-" cecutil.vim : save/restore window position
-" save/restore mark position
-" save/restore selected user maps
-" Author: Charles E. Campbell
-" Version: 18i NOT RELEASED
-" Date: Oct 21, 2013
-"
-" 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