Don't save and restore &tags option

Fix #86

Also:
* Make <F5> in MRU mode also remove excluded files.
* Make switching MRU and MRE an option. Close #87.
* Improve handling of some option vars.

autoload/ctrlp.vim

@@ -45,6 +45,7 @@ fu! s:opts()
 	endfo
 	if !exists('g:ctrlp_newcache') | let g:ctrlp_newcache = 0 | en
 	let s:maxdepth = min([s:maxdepth, 100])
+	let s:mxheight = max([s:mxheight, 1])
 	let s:igntype = empty(s:usrign) ? -1 : type(s:usrign)
 	" Extensions
 	let g:ctrlp_builtins = 2
@@ -1087,11 +1088,10 @@ fu! s:findroot(curr, mark, depth, type)
 	let [depth, notfound] = [a:depth + 1, empty(s:glbpath(a:curr, a:mark, 1))]
 	if !notfound || depth > s:maxdepth
 		if notfound | cal ctrlp#setdir(s:cwd) | en
-		if a:type | if depth <= s:maxdepth
+		if a:type && depth <= s:maxdepth
 			let s:vcsroot = a:curr
-		en | el
+		elsei !a:type && !notfound
-			cal ctrlp#setdir(a:curr)
+			cal ctrlp#setdir(a:curr) | let s:foundroot = 1
-			let s:foundroot = 1
 		en
 	el
 		let parent = s:getparent(a:curr)

autoload/ctrlp/mrufiles.vim

@@ -12,6 +12,7 @@ fu! ctrlp#mrufiles#opts()
 		\ 'g:ctrlp_mruf_exclude': ['s:exclude', ''],
 		\ 'g:ctrlp_mruf_case_sensitive': ['s:csen', 1],
 		\ 'g:ctrlp_mruf_relative': ['s:relate', 0],
+		\ 'g:ctrlp_mruf_last_entered': ['s:mre', 0],
 		\ }
 	for [ke, va] in items(opts)
 		exe 'let' va[0] '=' string(exists(ke) ? eval(ke) : va[1])
@@ -43,7 +44,7 @@ fu! ctrlp#mrufiles#list(bufnr, ...) "{{{1
 	let mrufs = ctrlp#utils#readfile(s:cafile)
 	" Remove non-existent files
 	if a:0 && a:1 == 1
-		cal filter(mrufs, '!empty(ctrlp#utils#glob(v:val, 1))')
+		cal filter(mrufs, '!empty(ctrlp#utils#glob(v:val, 1)) && !s:excl(v:val)')
 		cal ctrlp#utils#writecache(mrufs, s:cadir, s:cafile)
 	en
 	" Return the list with the active buffer removed
@@ -65,12 +66,19 @@ fu! ctrlp#mrufiles#list(bufnr, ...) "{{{1
 	if len(mrufs) > s:max | cal remove(mrufs, s:max, -1) | en
 	cal ctrlp#utils#writecache(mrufs, s:cadir, s:cafile)
 endf "}}}
+fu! s:excl(fname) "{{{
+	retu !empty(s:exclude) && a:fname =~# s:exclude
+endf "}}}
 fu! ctrlp#mrufiles#init() "{{{1
 	let s:locked = 0
 	aug CtrlPMRUF
 		au!
 		au BufReadPost,BufNewFile,BufWritePost *
 			\ cal ctrlp#mrufiles#list(expand('<abuf>', 1))
+		if s:mre
+			au BufEnter,BufUnload *
+				\ cal ctrlp#mrufiles#list(expand('<abuf>', 1))
+		en
 		au QuickFixCmdPre  *vimgrep* let s:locked = 1
 		au QuickFixCmdPost *vimgrep* let s:locked = 0
 	aug END

autoload/ctrlp/tag.vim

@@ -33,8 +33,7 @@ endf
 
 fu! s:findcount(str)
 	let [tg, fname] = split(a:str, '\t\+\ze[^\t]\+$')
-	let [&l:tags, fname] = [s:ltags, expand(fname, 1)]
+	let [fname, tgs] = [expand(fname, 1), taglist('^'.tg.'$')]
-	let tgs = taglist('^'.tg.'$')
 	if empty(tgs) | retu [1, 1] | en
 	let [fnd, ct, pos] = [0, 0, 0]
 	for each in tgs
@@ -68,9 +67,7 @@ endf
 " Public {{{1
 fu! ctrlp#tag#init(tagfiles)
 	if empty(a:tagfiles) | retu [] | en
-	let tagfiles = sort(s:nodup(a:tagfiles))
+	let [tagfiles, g:ctrlp_alltags] = [sort(s:nodup(a:tagfiles)), []]
-	let s:ltags  = join(tagfiles, ',')
-	let g:ctrlp_alltags = []
 	for each in tagfiles
 		let alltags = s:filter(ctrlp#utils#readfile(each))
 		cal extend(g:ctrlp_alltags, alltags)
@@ -86,17 +83,18 @@ fu! ctrlp#tag#accept(mode, str)
 	let [md, tg] = [a:mode, split(str, '^[^\t]\+\zs\t')[0]]
 	let fnd = s:findcount(str)
 	let cmds = {
-		\ 't': ['tabe', 'tab stj'],
+		\ 't': ['tab sp', 'tab stj'],
-		\ 'h': ['new', 'stj'],
+		\ 'h': ['sp', 'stj'],
-		\ 'v': ['vne', 'vert stj'],
+		\ 'v': ['vs', 'vert stj'],
-		\ 'e': ['ene', 'tj'],
+		\ 'e': ['', 'tj'],
 		\ }
 	let cmd = fnd[0] == 1 ? cmds[md][0] : cmds[md][1]
-	let cmd = cmd =~ 'tj\|ene' && &modified ? 'hid '.cmd : cmd
+	let cmd = cmd == 'tj' && &modified ? 'hid '.cmd : cmd
 	try
 		if fnd[0] == 1
-			exe cmd
+			if cmd != ''
-			let &l:tags = s:ltags
+				exe cmd
+			en
 			exe fnd[1].'ta' tg
 		el
 			exe cmd.' '.tg

doc/ctrlp.txt

@@ -66,8 +66,8 @@ Set this to 0 to show the match window at the top of the screen: >
 <
 
                                               *'g:ctrlp_match_window_reversed'*
-Reverse the sort order of the matched files in the match window. The default
+Change the listing order of the matched files in the match window. The default
-setting is from bottom to top: >
+setting (1) is from bottom to top: >
   let g:ctrlp_match_window_reversed = 1
 <
 
@@ -179,7 +179,7 @@ Specify the number of recently opened files you want |CtrlP| to remember: >
 <
 
                                                        *'g:ctrlp_mruf_exclude'*
-Files you don’t want |CtrlP| to remember; use |regexp| to specify the patterns:
+Files you don’t want |CtrlP| to remember. Use |regexp| to specify the patterns:
 >
   let g:ctrlp_mruf_exclude = ''
 <
@@ -207,6 +207,11 @@ MRU entries: >
   let g:ctrlp_mruf_case_sensitive = 1
 <
 
+                                                  *'g:ctrlp_mruf_last_entered'*
+Set to 1 to sort the MRU file list to most-recently-entered-buffer order: >
+  let g:ctrlp_mruf_last_entered = 0
+<
+
                                                            *'g:ctrlp_dotfiles'*
 Set this to 0 if you don’t want |CtrlP| to search for dotfiles and dotdirs: >
   let g:ctrlp_dotfiles = 1
@@ -235,7 +240,7 @@ Examples: >
     \ 'file': '\.exe$\|\.so$\|\.dll$',
     \ 'link': 'some$\|bad$\|symbolic$\|links$',
     \ }
->
+<
 
                                                     *'g:ctrlp_highlight_match'*
 Use this to enable/disable highlighting of the matched patterns and to specify
@@ -688,13 +693,6 @@ USER-CONFIGURATION                                          *ctrlp-user-config*
 
 Some miscellaneous configurations:~
 
-+) MRU ==> MRE (most-recently-entered): >
-  autocmd BufEnter,BufUnload * call ctrlp#mrufiles#list(expand('<abuf>', 1))
-<
-The default implementation of MRU is similar to that of desktop applications.
-Use the above |autocmd| to change it to recording most-recently-entered buffers
-(that have a file) instead.
-
 +) |g:ctrlp_user_command| config that makes use of your |wildignore| setting:
    https://github.com/kien/ctrlp.vim/issues/70 by Rich Alesi
 
@@ -741,6 +739,8 @@ Special thanks:~
 ===============================================================================
 CHANGELOG                                                     *ctrlp-changelog*
 
+    + New option: |g:ctrlp_mruf_last_entered| change MRU to recently-entered
+
 Before 2012/01/15~
 
     + New mapping: Switch <tab> and <s-tab>. <tab> is now used for completion