246 lines
7.3 KiB
VimL
246 lines
7.3 KiB
VimL
" filebrowser.vim: utility file for vim 6.2+
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"
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" Copyright: Srinath Avadhanula <srinath AT fastmail DOT fm>
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" Parts of this file are taken from explorer.vim which is a plugin file
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" distributed with vim under the Vim charityware license.
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" License: distributed under the Vim charityware license.
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"
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" Settings:
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" FB_CallBackFunction: the function name which gets called when the user
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" presses <cr> on a file-name in the file browser.
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" FB_AllowRegexp: A filename has to match this regexp to be displayed.
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" FB_RejectRegexp: If a filename matches this regexp, then its not displayed.
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" (Both these regexps are '' by default which means no filtering is
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" done).
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"======================================================================
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" Globally visible functions (API)
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"======================================================================
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" FB_OpenFileBrowser: opens a new buffer and displays the file list {{{
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" Description:
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function! FB_OpenFileBrowser(dir)
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if !isdirectory(a:dir)
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return
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endif
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if exists('s:FB_BufferNumber')
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if bufwinnr(s:FB_BufferNumber) != -1
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execute bufwinnr(s:FB_BufferNumber).' wincmd w'
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return
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endif
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execute 'aboveleft split #'.s:FB_BufferNumber
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else
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aboveleft split __Choose_File__
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let s:FB_BufferNumber = bufnr('%')
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endif
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call FB_DisplayFiles(a:dir)
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endfunction " }}}
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" FB_DisplayFiles: displays the files in a given directory {{{
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" Description:
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" Call this function only when the cursor is in a temporary buffer
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function! FB_DisplayFiles(dir)
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if !isdirectory(a:dir)
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return
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endif
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call s:FB_SetSilentSettings()
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" make this a "scratch" buffer
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call s:FB_SetScratchSettings()
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let allowRegexp = s:FB_GetVar('FB_AllowRegexp', '')
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let rejectRegexp = s:FB_GetVar('FB_RejectRegexp', '')
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" change to the directory to make processing simpler.
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execute "lcd ".a:dir
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" delete everything in the buffer.
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" IMPORTANT: we need to be in a scratch buffer
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0,$ d_
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let allFilenames = glob('*')
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let dispFiles = ""
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let subDirs = "../\n"
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let i = 1
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while 1
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let filename = s:FB_Strntok(allFilenames, "\n", i)
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if filename == ''
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break
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endif
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if isdirectory(filename)
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let subDirs = subDirs.filename."/\n"
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else
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if allowRegexp != '' && filename !~ allowRegexp
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elseif rejectRegexp != '' && filename =~ rejectRegexp
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else
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let dispFiles = dispFiles.filename."\n"
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endif
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endif
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let i = i + 1
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endwhile
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0put!=dispFiles
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0put!=subDirs
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" delte the last empty line resulting from the put
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$ d_
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call s:FB_SetHighlighting()
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call s:FB_DisplayHelp()
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call s:FB_SetMaps()
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" goto the first file/directory
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0
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call search('^"=', 'w')
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normal! j:<bs>
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set nomodified nomodifiable
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call s:FB_ResetSilentSettings()
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endfunction " }}}
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" FB_SetVar: sets script local variables from outside this script {{{
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" Description:
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function! FB_SetVar(varname, value)
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let s:{a:varname} = a:value
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endfunction " }}}
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" FB_SetHighlighting: sets syntax highlighting for the buffer {{{
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" Description:
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" Origin: from explorer.vim in vim
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function! <SID>FB_SetHighlighting()
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" Set up syntax highlighting
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" Something wrong with the evaluation of the conditional though...
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if has("syntax") && exists("g:syntax_on") && !has("syntax_items")
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syn match browseSynopsis "^\"[ -].*"
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syn match browseDirectory "[^\"].*/ "
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syn match browseDirectory "[^\"].*/$"
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syn match browseCurDir "^\"= .*$"
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syn match browseSortBy "^\" Sorted by .*$" contains=browseSuffixInfo
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syn match browseSuffixInfo "(.*)$" contained
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syn match browseFilter "^\" Not Showing:.*$"
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syn match browseFiletime "<22>\d\+$"
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"hi def link browseSynopsis PreProc
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hi def link browseSynopsis Special
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hi def link browseDirectory Directory
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hi def link browseCurDir Statement
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hi def link browseSortBy String
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hi def link browseSuffixInfo Type
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hi def link browseFilter String
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hi def link browseFiletime Ignore
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hi def link browseSuffixes Type
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endif
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endfunction " }}}
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" FB_SetMaps: sets buffer local maps {{{
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" Description:
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function! <SID>FB_SetMaps()
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nnoremap <buffer> <silent> q :bdelete<cr>
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nnoremap <buffer> <silent> C :call FB_DisplayFiles(getcwd())<CR>
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nnoremap <buffer> <silent> <esc> :bdelete<cr>
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nnoremap <buffer> <silent> <CR> :call <SID>FB_EditEntry()<CR>
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nnoremap <buffer> <silent> ? :call <SID>FB_ToggleHelp()<CR>
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" lock the user in this window
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nnoremap <buffer> <C-w> <nop>
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endfunction " }}}
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" FB_SetSilentSettings: some settings which make things silent {{{
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" Description:
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" Origin: from explorer.vim distributed with vim.
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function! <SID>FB_SetSilentSettings()
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let s:save_report=&report
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let s:save_showcmd = &sc
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set report=10000 noshowcmd
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endfunction
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" FB_ResetSilentSettings: reset settings set by FB_SetSilentSettings
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" Description:
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function! <SID>FB_ResetSilentSettings()
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let &report=s:save_report
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let &showcmd = s:save_showcmd
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endfunction " }}}
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" FB_SetScratchSettings: makes the present buffer a scratch buffer {{{
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" Description:
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function! <SID>FB_SetScratchSettings()
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" Turn off the swapfile, set the buffer type so that it won't get
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" written, and so that it will get deleted when it gets hidden.
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setlocal noreadonly modifiable
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setlocal noswapfile
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setlocal buftype=nowrite
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setlocal bufhidden=delete
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" Don't wrap around long lines
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setlocal nowrap
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endfunction
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" }}}
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" FB_ToggleHelp: toggles verbosity of help {{{
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" Description:
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function! <SID>FB_ToggleHelp()
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let s:FB_VerboseHelp = 1 - s:FB_GetVar('FB_VerboseHelp', 0)
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call FB_DisplayFiles('.')
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endfunction " }}}
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" FB_DisplayHelp: displays a helpful header {{{
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" Description:
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function! <SID>FB_DisplayHelp()
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let verboseHelp = s:FB_GetVar('FB_VerboseHelp', 0)
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if verboseHelp
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let txt =
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\ "\" <cr>: on file, choose the file and quit\n"
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\ ."\" on dir, enter directory\n"
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\ ."\" q/<esc>: quit without choosing\n"
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\ ."\" C: change directory to getcwd()\n"
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\ ."\" ?: toggle help verbosity\n"
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\ ."\"= ".getcwd()
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else
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let txt = "\" ?: toggle help verbosity\n"
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\ ."\"= ".getcwd()
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endif
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0put!=txt
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endfunction " }}}
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" Handles various actions in the file-browser
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" FB_EditEntry: handles the user pressing <enter> on a line {{{
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" Description:
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function! <SID>FB_EditEntry()
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let line = getline('.')
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if isdirectory(line)
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call FB_DisplayFiles(line)
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endif
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" If the user has a call back function defined on choosing a file, handle
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" it.
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let cbf = s:FB_GetVar('FB_CallBackFunction', '')
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if cbf != '' && line !~ '^" ' && filereadable(line)
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let fname = fnamemodify(line, ':p')
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bdelete
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let arguments = s:FB_GetVar('FB_CallBackFunctionArgs', '')
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if arguments != ''
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let arguments = ','.arguments
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endif
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call Tex_Debug('arguments = '.arguments, 'fb')
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call Tex_Debug("call ".cbf."('".fname."'".arguments.')', 'fb')
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exec "call ".cbf."('".fname."'".arguments.')'
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endif
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endfunction " }}}
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" FB_Strntok (string, tok, n) {{{
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" extract the n^th token from s seperated by tok.
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" example: FB_Strntok('1,23,3', ',', 2) = 23
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fun! <SID>FB_Strntok(s, tok, n)
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return matchstr( a:s.a:tok[0], '\v(\zs([^'.a:tok.']*)\ze['.a:tok.']){'.a:n.'}')
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endfun " }}}
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" FB_GetVar: gets the most local value of a variable {{{
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function! <SID>FB_GetVar(name, default)
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if exists('s:'.a:name)
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return s:{a:name}
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elseif exists('w:'.a:name)
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return w:{a:name}
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elseif exists('b:'.a:name)
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return b:{a:name}
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elseif exists('g:'.a:name)
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return g:{a:name}
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else
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return a:default
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endif
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endfunction
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" }}}
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" vim:fdm=marker:ff=unix:noet:ts=4:sw=4:nowrap
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