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vim/0001-patch-8.1.1366-using-expressions-in-modeline-is-unsafe.patch

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diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index b7f9869..2558f17 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -589,13 +589,17 @@ backslash in front of the ':' will be removed. Example:
This sets the 'dir' option to "c:\tmp". Only a single backslash before the
':' is removed. Thus to include "\:" you have to specify "\\:".
+ *E992*
No other commands than "set" are supported, for security reasons (somebody
might create a Trojan horse text file with modelines). And not all options
-can be set. For some options a flag is set, so that when it's used the
-|sandbox| is effective. Still, there is always a small risk that a modeline
-causes trouble. E.g., when some joker sets 'textwidth' to 5 all your lines
-are wrapped unexpectedly. So disable modelines before editing untrusted text.
-The mail ftplugin does this, for example.
+can be set. For some options a flag is set, so that when the value is used
+the |sandbox| is effective. Some options can only be set from the modeline
+when 'modelineexpr' is set (the default is off).
+
+Still, there is always a small risk that a modeline causes trouble. E.g.,
+when some joker sets 'textwidth' to 5 all your lines are wrapped unexpectedly.
+So disable modelines before editing untrusted text. The mail ftplugin does
+this, for example.
Hint: If you would like to do something else than setting an option, you could
define an autocommand that checks the file for a specific string. For
@@ -1177,6 +1181,7 @@ A jump table for the options with a short description can be found at |Q_op|.
The expression will be evaluated in the |sandbox| when set from a
modeline, see |sandbox-option|.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
It is not allowed to change text or jump to another window while
evaluating 'balloonexpr' |textlock|.
@@ -3290,7 +3295,7 @@ A jump table for the options with a short description can be found at |Q_op|.
The expression will be evaluated in the |sandbox| if set from a
modeline, see |sandbox-option|.
This option can't be set from a |modeline| when the 'diff' option is
- on.
+ on or the 'modelineexpr' option is off.
It is not allowed to change text or jump to another window while
evaluating 'foldexpr' |textlock|.
@@ -3432,6 +3437,7 @@ A jump table for the options with a short description can be found at |Q_op|.
The expression will be evaluated in the |sandbox| if set from a
modeline, see |sandbox-option|.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
It is not allowed to change text or jump to another window while
evaluating 'foldtext' |textlock|.
@@ -3470,6 +3476,7 @@ A jump table for the options with a short description can be found at |Q_op|.
The expression will be evaluated in the |sandbox| when set from a
modeline, see |sandbox-option|. That stops the option from working,
since changing the buffer text is not allowed.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
NOTE: This option is set to "" when 'compatible' is set.
*'formatoptions'* *'fo'*
@@ -3530,6 +3537,8 @@ A jump table for the options with a short description can be found at |Q_op|.
Also see 'swapsync' for controlling fsync() on swap files.
'fsync' also applies to |writefile()|, unless a flag is used to
overrule it.
+ This option cannot be set from a |modeline| or in the |sandbox|, for
+ security reasons.
*'gdefault'* *'gd'* *'nogdefault'* *'nogd'*
'gdefault' 'gd' boolean (default off)
@@ -3985,6 +3994,7 @@ A jump table for the options with a short description can be found at |Q_op|.
'guitabtooltip' is used for the tooltip, see below.
The expression will be evaluated in the |sandbox| when set from a
modeline, see |sandbox-option|.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
Only used when the GUI tab pages line is displayed. 'e' must be
present in 'guioptions'. For the non-GUI tab pages line 'tabline' is
@@ -4246,6 +4256,7 @@ A jump table for the options with a short description can be found at |Q_op|.
When this option contains printf-style '%' items, they will be
expanded according to the rules used for 'statusline'. See
'titlestring' for example settings.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
{not available when compiled without the |+statusline| feature}
*'ignorecase'* *'ic'* *'noignorecase'* *'noic'*
@@ -4265,6 +4276,8 @@ A jump table for the options with a short description can be found at |Q_op|.
This option specifies a function that will be called to
activate or deactivate the Input Method.
It is not used in the GUI.
+ The expression will be evaluated in the |sandbox| when set from a
+ modeline, see |sandbox-option|.
Example: >
function ImActivateFunc(active)
@@ -5296,6 +5309,19 @@ A jump table for the options with a short description can be found at |Q_op|.
Vi default: off)
local to buffer
*'modelines'* *'mls'*
+ If 'modeline' is on 'modelines' gives the number of lines that is
+ checked for set commands. If 'modeline' is off or 'modelines' is zero
+ no lines are checked. See |modeline|.
+
+ *'modelineexpr'* *'mle'* *'nomodelineexpr'* *'nomle'*
+'modelineexpr' 'mle' boolean (default: off)
+ global
+ When on allow some options that are an expression to be set in the
+ modeline. Check the option for whether it is affected by
+ 'modelineexpr'. Also see |modeline|.
+ This option cannot be set from a |modeline| or in the |sandbox|, for
+ security reasons.
+
'modelines' 'mls' number (default 5)
global
{not in Vi}
@@ -5306,9 +5332,9 @@ A jump table for the options with a short description can be found at |Q_op|.
set and to the Vim default value when 'compatible' is reset.
*'modifiable'* *'ma'* *'nomodifiable'* *'noma'*
+ *E21*
'modifiable' 'ma' boolean (default on)
local to buffer
- {not in Vi} *E21*
When off the buffer contents cannot be changed. The 'fileformat' and
'fileencoding' options also can't be changed.
Can be reset on startup with the |-M| command line argument.
@@ -6357,6 +6383,8 @@ A jump table for the options with a short description can be found at |Q_op|.
When this option is not empty, it determines the content of the ruler
string, as displayed for the 'ruler' option.
The format of this option is like that of 'statusline'.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
+
The default ruler width is 17 characters. To make the ruler 15
characters wide, put "%15(" at the start and "%)" at the end.
Example: >
@@ -6911,7 +6939,8 @@ A jump table for the options with a short description can be found at |Q_op|.
"Pattern not found", "Back at original", etc.
q use "recording" instead of "recording @a"
F don't give the file info when editing a file, like `:silent`
- was used for the command
+ was used for the command; note that this also affects messages
+ from autocommands
This gives you the opportunity to avoid that a change between buffers
requires you to hit <Enter>, but still gives as useful a message as
@@ -7488,6 +7517,7 @@ A jump table for the options with a short description can be found at |Q_op|.
The 'statusline' option will be evaluated in the |sandbox| if set from
a modeline, see |sandbox-option|.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
It is not allowed to change text or jump to another window while
evaluating 'statusline' |textlock|.
@@ -7672,6 +7702,8 @@ A jump table for the options with a short description can be found at |Q_op|.
the text to be displayed. Use "%1T" for the first label, "%2T" for
the second one, etc. Use "%X" items for closing labels.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
+
Keep in mind that only one of the tab pages is the current one, others
are invisible and you can't jump to their windows.
@@ -8188,8 +8220,11 @@ A jump table for the options with a short description can be found at |Q_op|.
non-empty 't_ts' option).
When Vim was compiled with HAVE_X11 defined, the original title will
be restored if possible, see |X11|.
+
When this option contains printf-style '%' items, they will be
expanded according to the rules used for 'statusline'.
+ This option cannot be set in a modeline when 'modelineexpr' is off.
+
Example: >
:auto BufEnter * let &titlestring = hostname() . "/" . expand("%:p")
:set title titlestring=%<%F%=%l/%L-%P titlelen=70
@@ -8378,6 +8413,8 @@ A jump table for the options with a short description can be found at |Q_op|.
undo file that exists is used. When it cannot be read an error is
given, no further entry is used.
See |undo-persistence|.
+ This option cannot be set from a |modeline| or in the |sandbox|, for
+ security reasons.
*'undofile'* *'noundofile'* *'udf'* *'noudf'*
'undofile' 'udf' boolean (default off)
@@ -8663,6 +8700,8 @@ A jump table for the options with a short description can be found at |Q_op|.
When equal to "NONE" no viminfo file will be read or written.
This option can be set with the |-i| command line flag. The |--clean|
command line flag sets it to "NONE".
+ This option cannot be set from a |modeline| or in the |sandbox|, for
+ security reasons.
*'virtualedit'* *'ve'*
'virtualedit' 've' string (default "")
diff --git a/src/Makefile b/src/Makefile
index 85de383..1e9ab0d 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2236,6 +2236,7 @@ test_arglist \
test_messages \
test_mksession \
test_mksession_utf8 \
+ test_modeline \
test_nested_function \
test_netbeans \
test_normal \
diff --git a/src/option.c b/src/option.c
index 31aec7e..74ad244 100644
--- a/src/option.c
+++ b/src/option.c
@@ -458,6 +458,7 @@ struct vimoption
* there is a redraw flag */
#define P_NDNAME 0x8000000L /* only normal dir name chars allowed */
#define P_RWINONLY 0x10000000L /* only redraw current window */
+#define P_MLE 0x20000000L /* under control of 'modelineexpr' */
#define ISK_LATIN1 (char_u *)"@,48-57,_,192-255"
@@ -647,7 +648,7 @@ static struct vimoption options[] =
{(char_u *)0L, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"balloonexpr", "bexpr", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
+ {"balloonexpr", "bexpr", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM|P_MLE,
#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
(char_u *)&p_bexpr, PV_BEXPR,
{(char_u *)"", (char_u *)0L}
@@ -733,7 +734,7 @@ static struct vimoption options[] =
{(char_u *)0L, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"cdpath", "cd", P_STRING|P_EXPAND|P_VI_DEF|P_COMMA|P_NODUP,
+ {"cdpath", "cd", P_STRING|P_EXPAND|P_VI_DEF|P_SECURE|P_COMMA|P_NODUP,
#ifdef FEAT_SEARCHPATH
(char_u *)&p_cdpath, PV_NONE,
{(char_u *)",,", (char_u *)0L}
@@ -1209,7 +1210,7 @@ static struct vimoption options[] =
{(char_u *)NULL, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"foldexpr", "fde", P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+ {"foldexpr", "fde", P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN|P_MLE,
#if defined(FEAT_FOLDING) && defined(FEAT_EVAL)
(char_u *)VAR_WIN, PV_FDE,
{(char_u *)"0", (char_u *)NULL}
@@ -1292,7 +1293,7 @@ static struct vimoption options[] =
{(char_u *)NULL, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"foldtext", "fdt", P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN,
+ {"foldtext", "fdt", P_STRING|P_ALLOCED|P_VIM|P_VI_DEF|P_RWIN|P_MLE,
#if defined(FEAT_FOLDING) && defined(FEAT_EVAL)
(char_u *)VAR_WIN, PV_FDT,
{(char_u *)"foldtext()", (char_u *)NULL}
@@ -1301,7 +1302,7 @@ static struct vimoption options[] =
{(char_u *)NULL, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"formatexpr", "fex", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
+ {"formatexpr", "fex", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM|P_MLE,
#ifdef FEAT_EVAL
(char_u *)&p_fex, PV_FEX,
{(char_u *)"", (char_u *)0L}
@@ -1440,7 +1441,7 @@ static struct vimoption options[] =
(char_u *)NULL, PV_NONE,
#endif
{(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
- {"guitablabel", "gtl", P_STRING|P_VI_DEF|P_RWIN,
+ {"guitablabel", "gtl", P_STRING|P_VI_DEF|P_RWIN|P_MLE,
#if defined(FEAT_GUI_TABLINE)
(char_u *)&p_gtl, PV_NONE,
{(char_u *)"", (char_u *)0L}
@@ -1511,7 +1512,7 @@ static struct vimoption options[] =
(char_u *)NULL, PV_NONE,
#endif
{(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
- {"iconstring", NULL, P_STRING|P_VI_DEF,
+ {"iconstring", NULL, P_STRING|P_VI_DEF|P_MLE,
#ifdef FEAT_TITLE
(char_u *)&p_iconstring, PV_NONE,
#else
@@ -1591,7 +1592,7 @@ static struct vimoption options[] =
{(char_u *)0L, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF,
+ {"includeexpr", "inex", P_STRING|P_ALLOCED|P_VI_DEF|P_MLE,
#if defined(FEAT_FIND_ID) && defined(FEAT_EVAL)
(char_u *)&p_inex, PV_INEX,
{(char_u *)"", (char_u *)0L}
@@ -1603,7 +1604,7 @@ static struct vimoption options[] =
{"incsearch", "is", P_BOOL|P_VI_DEF|P_VIM,
(char_u *)&p_is, PV_NONE,
{(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
- {"indentexpr", "inde", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM,
+ {"indentexpr", "inde", P_STRING|P_ALLOCED|P_VI_DEF|P_VIM|P_MLE,
#if defined(FEAT_CINDENT) && defined(FEAT_EVAL)
(char_u *)&p_inde, PV_INDE,
{(char_u *)"", (char_u *)0L}
@@ -1939,6 +1940,9 @@ static struct vimoption options[] =
{"modeline", "ml", P_BOOL|P_VIM,
(char_u *)&p_ml, PV_ML,
{(char_u *)FALSE, (char_u *)TRUE} SCRIPTID_INIT},
+ {"modelineexpr", "mle", P_BOOL|P_VI_DEF|P_SECURE,
+ (char_u *)&p_mle, PV_NONE,
+ {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
{"modelines", "mls", P_NUM|P_VI_DEF,
(char_u *)&p_mls, PV_NONE,
{(char_u *)5L, (char_u *)0L} SCRIPTID_INIT},
@@ -2362,7 +2366,7 @@ static struct vimoption options[] =
(char_u *)NULL, PV_NONE,
#endif
{(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
- {"rulerformat", "ruf", P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
+ {"rulerformat", "ruf", P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT|P_MLE,
#ifdef FEAT_STL_OPT
(char_u *)&p_ruf, PV_NONE,
#else
@@ -2628,7 +2632,7 @@ static struct vimoption options[] =
{"startofline", "sol", P_BOOL|P_VI_DEF|P_VIM,
(char_u *)&p_sol, PV_NONE,
{(char_u *)TRUE, (char_u *)0L} SCRIPTID_INIT},
- {"statusline" ,"stl", P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT,
+ {"statusline" ,"stl", P_STRING|P_VI_DEF|P_ALLOCED|P_RSTAT|P_MLE,
#ifdef FEAT_STL_OPT
(char_u *)&p_stl, PV_STL,
#else
@@ -2675,7 +2679,7 @@ static struct vimoption options[] =
{(char_u *)0L, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"tabline", "tal", P_STRING|P_VI_DEF|P_RALL,
+ {"tabline", "tal", P_STRING|P_VI_DEF|P_RALL|P_MLE,
#ifdef FEAT_STL_OPT
(char_u *)&p_tal, PV_NONE,
#else
@@ -2870,7 +2874,7 @@ static struct vimoption options[] =
{(char_u *)0L, (char_u *)0L}
#endif
SCRIPTID_INIT},
- {"titlestring", NULL, P_STRING|P_VI_DEF,
+ {"titlestring", NULL, P_STRING|P_VI_DEF|P_MLE,
#ifdef FEAT_TITLE
(char_u *)&p_titlestring, PV_NONE,
#else
@@ -4608,6 +4612,11 @@ do_set(
errmsg = (char_u *)_("E520: Not allowed in a modeline");
goto skip;
}
+ if ((flags & P_MLE) && !p_mle)
+ {
+ errmsg = (char_u *)_("E992: Not allowed in a modeline when 'modelineexpr' is off");
+ goto skip;
+ }
#ifdef FEAT_DIFF
/* In diff mode some options are overruled. This avoids that
* 'foldmethod' becomes "marker" instead of "diff" and that
diff --git a/src/option.h b/src/option.h
index 8f492c3..dfec21e 100644
--- a/src/option.h
+++ b/src/option.h
@@ -659,6 +659,7 @@ EXTERN long p_mis; /* 'menuitems' */
#ifdef FEAT_SPELL
EXTERN char_u *p_msm; /* 'mkspellmem' */
#endif
+EXTERN long p_mle; /* 'modelineexpr' */
EXTERN long p_mls; /* 'modelines' */
EXTERN char_u *p_mouse; /* 'mouse' */
#ifdef FEAT_GUI
diff --git a/src/testdir/test49.in b/src/testdir/test49.in
index 79f13f6..a0c9e0d 100644
--- a/src/testdir/test49.in
+++ b/src/testdir/test49.in
@@ -5,7 +5,7 @@ test49.failed, try to add one or more "G"s at the line ending in "test.out"
STARTTEST
:so small.vim
-:se nocp nomore viminfo+=nviminfo
+:se nocp nomore viminfo+=nviminfo modelineexpr
:lang mess C
:so test49.vim
:" Go back to this file and append the results from register r.
diff --git a/src/testdir/test_alot.vim b/src/testdir/test_alot.vim
index b8a5650..018a507 100644
--- a/src/testdir/test_alot.vim
+++ b/src/testdir/test_alot.vim
@@ -36,6 +36,7 @@ source test_mapping.vim
source test_match.vim
source test_menu.vim
source test_messages.vim
+source test_modeline.vim
source test_partial.vim
source test_popup.vim
source test_put.vim
diff --git a/src/testdir/test_modeline.vim b/src/testdir/test_modeline.vim
new file mode 100644
index 0000000..d2c3233
--- /dev/null
+++ b/src/testdir/test_modeline.vim
@@ -0,0 +1,103 @@
+" Tests for parsing the modeline.
+
+func s:modeline_fails(what, text, error)
+ if !exists('+' . a:what)
+ return
+ endif
+ let fname = "Xmodeline_fails_" . a:what
+ call writefile(['vim: set ' . a:text . ' :', 'nothing'], fname)
+ let modeline = &modeline
+ set modeline
+ filetype plugin on
+ syntax enable
+ call assert_fails('split ' . fname, a:error)
+ call assert_equal("", &filetype)
+ call assert_equal("", &syntax)
+
+ " Some options set a mark, don't let them cause a failure.
+ wviminfo! Xviminfo
+ bwipe!
+ call delete(fname)
+ call delete('Xviminfo')
+ let &modeline = modeline
+ filetype plugin off
+ syntax off
+endfunc
+
+func Test_modeline_fails_always()
+ call s:modeline_fails('backupdir', 'backupdir=Something()', 'E520:')
+ call s:modeline_fails('cdpath', 'cdpath=Something()', 'E520:')
+ call s:modeline_fails('charconvert', 'charconvert=Something()', 'E520:')
+ call s:modeline_fails('completefunc', 'completefunc=Something()', 'E520:')
+ call s:modeline_fails('cscopeprg', 'cscopeprg=Something()', 'E520:')
+ call s:modeline_fails('diffexpr', 'diffexpr=Something()', 'E520:')
+ call s:modeline_fails('directory', 'directory=Something()', 'E520:')
+ call s:modeline_fails('equalprg', 'equalprg=Something()', 'E520:')
+ call s:modeline_fails('errorfile', 'errorfile=Something()', 'E520:')
+ call s:modeline_fails('exrc', 'exrc=Something()', 'E520:')
+ call s:modeline_fails('formatprg', 'formatprg=Something()', 'E520:')
+ call s:modeline_fails('fsync', 'fsync=Something()', 'E520:')
+ call s:modeline_fails('grepprg', 'grepprg=Something()', 'E520:')
+ call s:modeline_fails('helpfile', 'helpfile=Something()', 'E520:')
+ call s:modeline_fails('imactivatefunc', 'imactivatefunc=Something()', 'E520:')
+ call s:modeline_fails('imstatusfunc', 'imstatusfunc=Something()', 'E520:')
+ call s:modeline_fails('imstyle', 'imstyle=Something()', 'E520:')
+ call s:modeline_fails('keywordprg', 'keywordprg=Something()', 'E520:')
+ call s:modeline_fails('langmap', 'langmap=Something()', 'E520:')
+ call s:modeline_fails('luadll', 'luadll=Something()', 'E520:')
+ call s:modeline_fails('makeef', 'makeef=Something()', 'E520:')
+ call s:modeline_fails('makeprg', 'makeprg=Something()', 'E520:')
+ call s:modeline_fails('makespellmem', 'makespellmem=Something()', 'E520:')
+ call s:modeline_fails('modelineexpr', 'modelineexpr', 'E520:')
+ call s:modeline_fails('mzschemedll', 'mzschemedll=Something()', 'E520:')
+ call s:modeline_fails('mzschemegcdll', 'mzschemegcdll=Something()', 'E520:')
+ call s:modeline_fails('omnifunc', 'omnifunc=Something()', 'E520:')
+ call s:modeline_fails('operatorfunc', 'operatorfunc=Something()', 'E520:')
+ call s:modeline_fails('perldll', 'perldll=Something()', 'E520:')
+ call s:modeline_fails('printdevice', 'printdevice=Something()', 'E520:')
+ call s:modeline_fails('patchexpr', 'patchexpr=Something()', 'E520:')
+ call s:modeline_fails('printexpr', 'printexpr=Something()', 'E520:')
+ call s:modeline_fails('pythondll', 'pythondll=Something()', 'E520:')
+ call s:modeline_fails('pythonhome', 'pythonhome=Something()', 'E520:')
+ call s:modeline_fails('pythonthreedll', 'pythonthreedll=Something()', 'E520:')
+ call s:modeline_fails('pythonthreehome', 'pythonthreehome=Something()', 'E520:')
+ call s:modeline_fails('pyxversion', 'pyxversion=Something()', 'E520:')
+ call s:modeline_fails('rubydll', 'rubydll=Something()', 'E520:')
+ call s:modeline_fails('runtimepath', 'runtimepath=Something()', 'E520:')
+ call s:modeline_fails('secure', 'secure=Something()', 'E520:')
+ call s:modeline_fails('shell', 'shell=Something()', 'E520:')
+ call s:modeline_fails('shellcmdflag', 'shellcmdflag=Something()', 'E520:')
+ call s:modeline_fails('shellpipe', 'shellpipe=Something()', 'E520:')
+ call s:modeline_fails('shellquote', 'shellquote=Something()', 'E520:')
+ call s:modeline_fails('shellredir', 'shellredir=Something()', 'E520:')
+ call s:modeline_fails('shellxquote', 'shellxquote=Something()', 'E520:')
+ call s:modeline_fails('spellfile', 'spellfile=Something()', 'E520:')
+ call s:modeline_fails('spellsuggest', 'spellsuggest=Something()', 'E520:')
+ call s:modeline_fails('tcldll', 'tcldll=Something()', 'E520:')
+ call s:modeline_fails('titleold', 'titleold=Something()', 'E520:')
+ call s:modeline_fails('viewdir', 'viewdir=Something()', 'E520:')
+ call s:modeline_fails('viminfo', 'viminfo=Something()', 'E520:')
+ call s:modeline_fails('viminfofile', 'viminfofile=Something()', 'E520:')
+ call s:modeline_fails('winptydll', 'winptydll=Something()', 'E520:')
+ call s:modeline_fails('undodir', 'undodir=Something()', 'E520:')
+ " only check a few terminal options
+ call s:modeline_fails('t_AB', 't_AB=Something()', 'E520:')
+ call s:modeline_fails('t_ce', 't_ce=Something()', 'E520:')
+ call s:modeline_fails('t_sr', 't_sr=Something()', 'E520:')
+ call s:modeline_fails('t_8b', 't_8b=Something()', 'E520:')
+endfunc
+
+func Test_modeline_fails_modelineexpr()
+ call s:modeline_fails('balloonexpr', 'balloonexpr=Something()', 'E992:')
+ call s:modeline_fails('foldexpr', 'foldexpr=Something()', 'E992:')
+ call s:modeline_fails('foldtext', 'foldtext=Something()', 'E992:')
+ call s:modeline_fails('formatexpr', 'formatexpr=Something()', 'E992:')
+ call s:modeline_fails('guitablabel', 'guitablabel=Something()', 'E992:')
+ call s:modeline_fails('iconstring', 'iconstring=Something()', 'E992:')
+ call s:modeline_fails('includeexpr', 'includeexpr=Something()', 'E992:')
+ call s:modeline_fails('indentexpr', 'indentexpr=Something()', 'E992:')
+ call s:modeline_fails('rulerformat', 'rulerformat=Something()', 'E992:')
+ call s:modeline_fails('statusline', 'statusline=Something()', 'E992:')
+ call s:modeline_fails('tabline', 'tabline=Something()', 'E992:')
+ call s:modeline_fails('titlestring', 'titlestring=Something()', 'E992:')
+endfunc
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