diff .vim/plugin/filebrowser.vim @ 3:19d1235ce229

More stigg.

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.vim/plugin/filebrowser.vim	Sun Jan 18 18:35:47 2015 +0000
@@ -0,0 +1,250 @@
+" 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 allFilenames = allFilenames."\n"
+    let start = 0
+    while 1
+        let next = stridx(allFilenames, "\n", start)
+        let filename = strpart(allFilenames, start, next-start)
+        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 start = next + 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 " }}}
+
+" ==============================================================================
+" Script local functions below this
+" ============================================================================== 
+" 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 " }}}
+" 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_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