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authorRyan Kavanagh <rak@rak.ac>2021-12-13 16:55:42 -0500
committerRyan Kavanagh <rak@rak.ac>2021-12-13 16:58:10 -0500
commite5dfb045b994e1ab8fef9ef5d3f02ce20ea6b685 (patch)
treeba74287d80e46c70dab8c4311a1dc933fbfbdea1 /dot_vim/plugin/filebrowser.vim
parentfix pager again (diff)
many more renames
Diffstat (limited to 'dot_vim/plugin/filebrowser.vim')
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+" filebrowser.vim: utility file for vim 6.2+
+"
+" Copyright: Srinath Avadhanula <srinath AT fastmail DOT fm>
+" Parts of this file are taken from explorer.vim which is a plugin file
+" distributed with vim under the Vim charityware license.
+" License: distributed under the Vim charityware license.
+"
+" Settings:
+" FB_CallBackFunction: the function name which gets called when the user
+" presses <cr> on a file-name in the file browser.
+" FB_AllowRegexp: A filename has to match this regexp to be displayed.
+" FB_RejectRegexp: If a filename matches this regexp, then its not displayed.
+" (Both these regexps are '' by default which means no filtering is
+" done).
+
+" line continuation used here.
+let s:save_cpo = &cpo
+set cpo&vim
+
+"======================================================================
+" Globally visible functions (API)
+"======================================================================
+" FB_OpenFileBrowser: opens a new buffer and displays the file list {{{
+" Description:
+function! FB_OpenFileBrowser(dir)
+ if !isdirectory(a:dir)
+ return
+ endif
+ if exists('s:FB_BufferNumber')
+ if bufwinnr(s:FB_BufferNumber) != -1
+ execute bufwinnr(s:FB_BufferNumber).' wincmd w'
+ return
+ endif
+ execute 'aboveleft split #'.s:FB_BufferNumber
+ else
+ aboveleft split __Choose_File__
+ let s:FB_BufferNumber = bufnr('%')
+ endif
+ call FB_DisplayFiles(a:dir)
+endfunction " }}}
+" FB_DisplayFiles: displays the files in a given directory {{{
+" Description:
+" Call this function only when the cursor is in a temporary buffer
+function! FB_DisplayFiles(dir)
+ if !isdirectory(a:dir)
+ return
+ endif
+ call s:FB_SetSilentSettings()
+ " make this a "scratch" buffer
+ call s:FB_SetScratchSettings()
+
+ let allowRegexp = s:FB_GetVar('FB_AllowRegexp', '')
+ let rejectRegexp = s:FB_GetVar('FB_RejectRegexp', '')
+
+ " change to the directory to make processing simpler.
+ execute "lcd ".a:dir
+ " delete everything in the buffer.
+ " IMPORTANT: we need to be in a scratch buffer
+ 0,$ d_
+
+ let allFilenames = glob('*')
+ let dispFiles = ""
+ let subDirs = "../\n"
+
+ let i = 1
+ while 1
+ let filename = s:FB_Strntok(allFilenames, "\n", i)
+ if filename == ''
+ break
+ endif
+ if isdirectory(filename)
+ let subDirs = subDirs.filename."/\n"
+ else
+ if allowRegexp != '' && filename !~ allowRegexp
+ elseif rejectRegexp != '' && filename =~ rejectRegexp
+ else
+ let dispFiles = dispFiles.filename."\n"
+ endif
+ endif
+ let i = i + 1
+ endwhile
+ 0put!=dispFiles
+ 0put!=subDirs
+ " delte the last empty line resulting from the put
+ $ d_
+
+ call s:FB_SetHighlighting()
+ call s:FB_DisplayHelp()
+ call s:FB_SetMaps()
+
+ " goto the first file/directory
+ 0
+ call search('^"=', 'w')
+ normal! j:<bs>
+
+ set nomodified nomodifiable
+
+ call s:FB_ResetSilentSettings()
+endfunction " }}}
+" FB_SetVar: sets script local variables from outside this script {{{
+" Description:
+function! FB_SetVar(varname, value)
+ let s:{a:varname} = a:value
+endfunction " }}}
+
+" FB_SetHighlighting: sets syntax highlighting for the buffer {{{
+" Description:
+" Origin: from explorer.vim in vim
+function! <SID>FB_SetHighlighting()
+ " Set up syntax highlighting
+ " Something wrong with the evaluation of the conditional though...
+ if has("syntax") && exists("g:syntax_on") && !has("syntax_items")
+ syn match browseSynopsis "^\"[ -].*"
+ syn match browseDirectory "[^\"].*/ "
+ syn match browseDirectory "[^\"].*/$"
+ syn match browseCurDir "^\"= .*$"
+ syn match browseSortBy "^\" Sorted by .*$" contains=browseSuffixInfo
+ syn match browseSuffixInfo "(.*)$" contained
+ syn match browseFilter "^\" Not Showing:.*$"
+ syn match browseFiletime "«\d\+$"
+
+ "hi def link browseSynopsis PreProc
+ hi def link browseSynopsis Special
+ hi def link browseDirectory Directory
+ hi def link browseCurDir Statement
+ hi def link browseSortBy String
+ hi def link browseSuffixInfo Type
+ hi def link browseFilter String
+ hi def link browseFiletime Ignore
+ hi def link browseSuffixes Type
+ endif
+endfunction " }}}
+" FB_SetMaps: sets buffer local maps {{{
+" Description:
+function! <SID>FB_SetMaps()
+ nnoremap <buffer> <silent> q :bdelete<cr>
+ nnoremap <buffer> <silent> C :call FB_DisplayFiles(getcwd())<CR>
+ nnoremap <buffer> <silent> <esc> :bdelete<cr>
+ nnoremap <buffer> <silent> <CR> :call <SID>FB_EditEntry()<CR>
+ nnoremap <buffer> <silent> ? :call <SID>FB_ToggleHelp()<CR>
+
+ " lock the user in this window
+ nnoremap <buffer> <C-w> <nop>
+endfunction " }}}
+" FB_SetSilentSettings: some settings which make things silent {{{
+" Description:
+" Origin: from explorer.vim distributed with vim.
+function! <SID>FB_SetSilentSettings()
+ let s:save_report=&report
+ let s:save_showcmd = &sc
+ set report=10000 noshowcmd
+endfunction
+" FB_ResetSilentSettings: reset settings set by FB_SetSilentSettings
+" Description:
+function! <SID>FB_ResetSilentSettings()
+ let &report=s:save_report
+ let &showcmd = s:save_showcmd
+endfunction " }}}
+" FB_SetScratchSettings: makes the present buffer a scratch buffer {{{
+" Description:
+function! <SID>FB_SetScratchSettings()
+ " Turn off the swapfile, set the buffer type so that it won't get
+ " written, and so that it will get deleted when it gets hidden.
+ setlocal noreadonly modifiable
+ setlocal noswapfile
+ setlocal buftype=nowrite
+ setlocal bufhidden=delete
+ " Don't wrap around long lines
+ setlocal nowrap
+endfunction
+
+" }}}
+" FB_ToggleHelp: toggles verbosity of help {{{
+" Description:
+function! <SID>FB_ToggleHelp()
+ let s:FB_VerboseHelp = 1 - s:FB_GetVar('FB_VerboseHelp', 0)
+
+ call FB_DisplayFiles('.')
+endfunction " }}}
+" FB_DisplayHelp: displays a helpful header {{{
+" Description:
+function! <SID>FB_DisplayHelp()
+ let verboseHelp = s:FB_GetVar('FB_VerboseHelp', 0)
+ if verboseHelp
+ let txt =
+ \ "\" <cr>: on file, choose the file and quit\n"
+ \ ."\" on dir, enter directory\n"
+ \ ."\" q/<esc>: quit without choosing\n"
+ \ ."\" C: change directory to getcwd()\n"
+ \ ."\" ?: toggle help verbosity\n"
+ \ ."\"= ".getcwd()
+ else
+ let txt = "\" ?: toggle help verbosity\n"
+ \ ."\"= ".getcwd()
+ endif
+ 0put!=txt
+endfunction " }}}
+
+" Handles various actions in the file-browser
+" FB_EditEntry: handles the user pressing <enter> on a line {{{
+" Description:
+function! <SID>FB_EditEntry()
+ let line = getline('.')
+
+ if isdirectory(line)
+ call FB_DisplayFiles(line)
+ endif
+
+ " If the user has a call back function defined on choosing a file, handle
+ " it.
+ let cbf = s:FB_GetVar('FB_CallBackFunction', '')
+ if cbf != '' && line !~ '^" ' && filereadable(line)
+ let fname = fnamemodify(line, ':p')
+ bdelete
+
+ let arguments = s:FB_GetVar('FB_CallBackFunctionArgs', '')
+ if arguments != ''
+ let arguments = ','.arguments
+ endif
+ call Tex_Debug('arguments = '.arguments, 'fb')
+ call Tex_Debug("call ".cbf."('".fname."'".arguments.')', 'fb')
+ exec "call ".cbf."('".fname."'".arguments.')'
+ endif
+endfunction " }}}
+
+" FB_Strntok (string, tok, n) {{{
+" extract the n^th token from s seperated by tok.
+" example: FB_Strntok('1,23,3', ',', 2) = 23
+fun! <SID>FB_Strntok(s, tok, n)
+ return matchstr( a:s.a:tok[0], '\v(\zs([^'.a:tok.']*)\ze['.a:tok.']){'.a:n.'}')
+endfun " }}}
+" FB_GetVar: gets the most local value of a variable {{{
+function! <SID>FB_GetVar(name, default)
+ if exists('s:'.a:name)
+ return s:{a:name}
+ elseif exists('w:'.a:name)
+ return w:{a:name}
+ elseif exists('b:'.a:name)
+ return b:{a:name}
+ elseif exists('g:'.a:name)
+ return g:{a:name}
+ else
+ return a:default
+ endif
+endfunction
+
+" }}}
+
+let &cpo = s:save_cpo
+
+" vim:fdm=marker:ff=unix:noet:ts=4:sw=4:nowrap