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Diffstat (limited to 'autoload/gzip.vim')
| -rw-r--r-- | autoload/gzip.vim | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/autoload/gzip.vim b/autoload/gzip.vim deleted file mode 100644 index 39ae4107..00000000 --- a/autoload/gzip.vim +++ /dev/null @@ -1,224 +0,0 @@ -if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'vim') == -1 - -" Vim autoload file for editing compressed files. -" Maintainer: Bram Moolenaar <Bram@vim.org> -" Last Change: 2016 Sep 28 - -" These functions are used by the gzip plugin. - -" Function to check that executing "cmd [-f]" works. -" The result is cached in s:have_"cmd" for speed. -fun s:check(cmd) - let name = substitute(a:cmd, '\(\S*\).*', '\1', '') - if !exists("s:have_" . name) - let e = executable(name) - if e < 0 - let r = system(name . " --version") - let e = (r !~ "not found" && r != "") - endif - exe "let s:have_" . name . "=" . e - endif - exe "return s:have_" . name -endfun - -" Set b:gzip_comp_arg to the gzip argument to be used for compression, based on -" the flags in the compressed file. -" The only compression methods that can be detected are max speed (-1) and max -" compression (-9). -fun s:set_compression(line) - " get the Compression Method - let l:cm = char2nr(a:line[2]) - " if it's 8 (DEFLATE), we can check for the compression level - if l:cm == 8 - " get the eXtra FLags - let l:xfl = char2nr(a:line[8]) - " max compression - if l:xfl == 2 - let b:gzip_comp_arg = "-9" - " min compression - elseif l:xfl == 4 - let b:gzip_comp_arg = "-1" - endif - endif -endfun - - -" After reading compressed file: Uncompress text in buffer with "cmd" -fun gzip#read(cmd) - " don't do anything if the cmd is not supported - if !s:check(a:cmd) - return - endif - - " for gzip check current compression level and set b:gzip_comp_arg. - silent! unlet b:gzip_comp_arg - if a:cmd[0] == 'g' - call s:set_compression(getline(1)) - endif - - " make 'patchmode' empty, we don't want a copy of the written file - let pm_save = &pm - set pm= - " remove 'a' and 'A' from 'cpo' to avoid the alternate file changes - let cpo_save = &cpo - set cpo-=a cpo-=A - " set 'modifiable' - let ma_save = &ma - setlocal ma - " set 'write' - let write_save = &write - set write - " Reset 'foldenable', otherwise line numbers get adjusted. - if has("folding") - let fen_save = &fen - setlocal nofen - endif - - " when filtering the whole buffer, it will become empty - let empty = line("'[") == 1 && line("']") == line("$") - let tmp = tempname() - let tmpe = tmp . "." . expand("<afile>:e") - if exists('*fnameescape') - let tmp_esc = fnameescape(tmp) - let tmpe_esc = fnameescape(tmpe) - else - let tmp_esc = escape(tmp, ' ') - let tmpe_esc = escape(tmpe, ' ') - endif - " write the just read lines to a temp file "'[,']w tmp.gz" - execute "silent '[,']w " . tmpe_esc - " uncompress the temp file: call system("gzip -dn tmp.gz") - call system(a:cmd . " " . s:escape(tmpe)) - if !filereadable(tmp) - " uncompress didn't work! Keep the compressed file then. - echoerr "Error: Could not read uncompressed file" - let ok = 0 - else - let ok = 1 - " delete the compressed lines; remember the line number - let l = line("'[") - 1 - if exists(":lockmarks") - lockmarks '[,']d _ - else - '[,']d _ - endif - " read in the uncompressed lines "'[-1r tmp" - " Use ++edit if the buffer was empty, keep the 'ff' and 'fenc' options. - setlocal nobin - if exists(":lockmarks") - if empty - execute "silent lockmarks " . l . "r ++edit " . tmp_esc - else - execute "silent lockmarks " . l . "r " . tmp_esc - endif - else - execute "silent " . l . "r " . tmp_esc - endif - - " if buffer became empty, delete trailing blank line - if empty - silent $delete _ - 1 - endif - " delete the temp file and the used buffers - call delete(tmp) - silent! exe "bwipe " . tmp_esc - silent! exe "bwipe " . tmpe_esc - endif - " Store the OK flag, so that we can use it when writing. - let b:uncompressOk = ok - - " Restore saved option values. - let &pm = pm_save - let &cpo = cpo_save - let &l:ma = ma_save - let &write = write_save - if has("folding") - let &l:fen = fen_save - endif - - " When uncompressed the whole buffer, do autocommands - if ok && empty - if exists('*fnameescape') - let fname = fnameescape(expand("%:r")) - else - let fname = escape(expand("%:r"), " \t\n*?[{`$\\%#'\"|!<") - endif - if &verbose >= 8 - execute "doau BufReadPost " . fname - else - execute "silent! doau BufReadPost " . fname - endif - endif -endfun - -" After writing compressed file: Compress written file with "cmd" -fun gzip#write(cmd) - if exists('b:uncompressOk') && !b:uncompressOk - echomsg "Not compressing file because uncompress failed; reset b:uncompressOk to compress anyway" - " don't do anything if the cmd is not supported - elseif s:check(a:cmd) - " Rename the file before compressing it. - let nm = resolve(expand("<afile>")) - let nmt = s:tempname(nm) - if rename(nm, nmt) == 0 - if exists("b:gzip_comp_arg") - call system(a:cmd . " " . b:gzip_comp_arg . " -- " . s:escape(nmt)) - else - call system(a:cmd . " -- " . s:escape(nmt)) - endif - call rename(nmt . "." . expand("<afile>:e"), nm) - endif - endif -endfun - -" Before appending to compressed file: Uncompress file with "cmd" -fun gzip#appre(cmd) - " don't do anything if the cmd is not supported - if s:check(a:cmd) - let nm = expand("<afile>") - - " for gzip check current compression level and set b:gzip_comp_arg. - silent! unlet b:gzip_comp_arg - if a:cmd[0] == 'g' - call s:set_compression(readfile(nm, "b", 1)[0]) - endif - - " Rename to a weird name to avoid the risk of overwriting another file - let nmt = expand("<afile>:p:h") . "/X~=@l9q5" - let nmte = nmt . "." . expand("<afile>:e") - if rename(nm, nmte) == 0 - if &patchmode != "" && getfsize(nm . &patchmode) == -1 - " Create patchmode file by creating the decompressed file new - call system(a:cmd . " -c -- " . s:escape(nmte) . " > " . s:escape(nmt)) - call rename(nmte, nm . &patchmode) - else - call system(a:cmd . " -- " . s:escape(nmte)) - endif - call rename(nmt, nm) - endif - endif -endfun - -" find a file name for the file to be compressed. Use "name" without an -" extension if possible. Otherwise use a weird name to avoid overwriting an -" existing file. -fun s:tempname(name) - let fn = fnamemodify(a:name, ":r") - if !filereadable(fn) && !isdirectory(fn) - return fn - endif - return fnamemodify(a:name, ":p:h") . "/X~=@l9q5" -endfun - -fun s:escape(name) - " shellescape() was added by patch 7.0.111 - if exists("*shellescape") - return shellescape(a:name) - endif - return "'" . a:name . "'" -endfun - -" vim: set sw=2 : - -endif |