# HG changeset patch
# User Bram Moolenaar <bram@vim.org>
# Date 1367805175 -7200
# Node ID 7eaccdaa530431c15fb0e0803e5495074e883bb9
# Parent  9e3cdd762964a2f8d928b0cd162ee7839f97c92b
updated for version 7.3.924
Problem:    Python interface can't easily access options.
Solution:   Add vim.options, vim.window.options and vim.buffer.options. (ZyX)

diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -243,6 +243,18 @@ vim.vvars						*python-vvars*
 	vim (|v:|) variables respectively. Identical to `vim.bindeval("g:")`, 
 	but faster.
 
+vim.options						*python-options*
+	Object partly supporting mapping protocol (supports setting and 
+	getting items) providing a read-write access to global options.
+	Note: unlike |:set| this provides access only to global options. You
+	cannot use this object to obtain or set local options' values or
+	access local-only options in any fashion. Raises KeyError if no global
+	option with such name exists (i.e. does not raise KeyError for
+	|global-local| options and global only options, but does for window-
+	and buffer-local ones).  Use |python-buffer| objects to access to
+	buffer-local options and |python-window| objects to access to
+	window-local options.
+
 Output from Python					*python-output*
 	Vim displays all Python code output in the Vim message area.  Normal
 	output appears as information messages, and error output appears as
@@ -283,6 +295,17 @@ Buffer indexes start at zero, as is norm
 line numbers, which start from 1.  This is particularly relevant when dealing
 with marks (see below) which use vim line numbers.
 
+The buffer object attributes are:
+	b.vars		Dictionary-like object used to access 
+			|buffer-variable|s.
+	b.options	Mapping object (supports item getting, setting and 
+			deleting) that provides access to buffer-local options 
+			and buffer-local values of |global-local| options. Use 
+			|python-window|.options if option is window-local, 
+			this object will raise KeyError. If option is 
+			|global-local| and local value is missing getting it 
+			will return None.
+
 The buffer object methods are:
 	b.append(str)	Append a line to the buffer
 	b.append(str, nr)  Idem, below line "nr"
@@ -313,6 +336,8 @@ Examples (assume b is the current buffer
 	:py (row,col) = b.mark('a')	# named mark
 	:py r = b.range(1,5)		# a sub-range of the buffer
 	:py b.vars["foo"] = "bar"	# assign b:foo variable
+	:py b.options["ff"] = "dos"	# set fileformat
+	:py del b.options["ar"]		# same as :set autoread<
 
 ==============================================================================
 4. Range objects					*python-range*
@@ -363,6 +388,14 @@ Window attributes are:
 	vars (read-only)	The window |w:| variables. Attribute is 
 				unassignable, but you can change window 
 				variables this way
+	options (read-only)	The window-local options. Attribute is 
+				unassignable, but you can change window 
+				options this way. Provides access only to 
+				window-local options, for buffer-local use 
+				|python-buffer| and for global ones use 
+				|python-options|. If option is |global-local| 
+				and local value is missing getting it will 
+				return None.
 The height attribute is writable only if the screen is split horizontally.
 The width attribute is writable only if the screen is split vertically.
 
diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -16643,9 +16643,48 @@ f_setwinvar(argvars, rettv)
     setwinvar(argvars, rettv, 0);
 }
 
+    int
+switch_win(save_curwin, save_curtab, win, tp)
+    win_T	**save_curwin;
+    tabpage_T	**save_curtab;
+    win_T	*win;
+    tabpage_T	*tp;
+{
+#ifdef FEAT_WINDOWS
+    /* set curwin to be our win, temporarily */
+    *save_curwin = curwin;
+    *save_curtab = curtab;
+    goto_tabpage_tp(tp, TRUE);
+    if (!win_valid(win))
+	return FAIL;
+    curwin = win;
+    curbuf = curwin->w_buffer;
+#endif
+    return OK;
+}
+
+    void
+restore_win(save_curwin, save_curtab)
+    win_T	*save_curwin;
+    tabpage_T	*save_curtab;
+{
+#ifdef FEAT_WINDOWS
+    /* Restore current tabpage and window, if still valid (autocomands can
+     * make them invalid). */
+    if (valid_tabpage(save_curtab))
+	goto_tabpage_tp(save_curtab, TRUE);
+    if (win_valid(save_curwin))
+    {
+	curwin = save_curwin;
+	curbuf = curwin->w_buffer;
+    }
+#endif
+}
+
 /*
  * "setwinvar()" and "settabwinvar()" functions
  */
+
     static void
 setwinvar(argvars, rettv, off)
     typval_T	*argvars;
@@ -16678,14 +16717,8 @@ setwinvar(argvars, rettv, off)
     if (win != NULL && varname != NULL && varp != NULL)
     {
 #ifdef FEAT_WINDOWS
-	/* set curwin to be our win, temporarily */
-	save_curwin = curwin;
-	save_curtab = curtab;
-	goto_tabpage_tp(tp, TRUE);
-	if (!win_valid(win))
+	if (switch_win(&save_curwin, &save_curtab, win, tp) == FAIL)
 	    return;
-	curwin = win;
-	curbuf = curwin->w_buffer;
 #endif
 
 	if (*varname == '&')
@@ -16713,15 +16746,7 @@ setwinvar(argvars, rettv, off)
 	}
 
 #ifdef FEAT_WINDOWS
-	/* Restore current tabpage and window, if still valid (autocomands can
-	 * make them invalid). */
-	if (valid_tabpage(save_curtab))
-	    goto_tabpage_tp(save_curtab, TRUE);
-	if (win_valid(save_curwin))
-	{
-	    curwin = save_curwin;
-	    curbuf = curwin->w_buffer;
-	}
+	restore_win(save_curwin, save_curtab);
 #endif
     }
 }
diff --git a/src/if_py_both.h b/src/if_py_both.h
--- a/src/if_py_both.h
+++ b/src/if_py_both.h
@@ -1497,6 +1497,279 @@ static struct PyMethodDef FunctionMethod
     { NULL,	    NULL,		0,	    NULL }
 };
 
+/*
+ * Options object
+ */
+
+static PyTypeObject OptionsType;
+
+typedef int (*checkfun)(void *);
+
+typedef struct
+{
+    PyObject_HEAD
+    int opt_type;
+    void *from;
+    checkfun Check;
+    PyObject *fromObj;
+} OptionsObject;
+
+    static PyObject *
+OptionsItem(OptionsObject *this, PyObject *keyObject)
+{
+    char_u	*key;
+    int		flags;
+    long	numval;
+    char_u	*stringval;
+
+    if (this->Check(this->from))
+	return NULL;
+
+    DICTKEY_DECL
+
+    DICTKEY_GET_NOTEMPTY(NULL)
+
+    flags = get_option_value_strict(key, &numval, &stringval,
+				    this->opt_type, this->from);
+
+    DICTKEY_UNREF
+
+    if (flags == 0)
+    {
+	PyErr_SetString(PyExc_KeyError, "Option does not exist in given scope");
+	return NULL;
+    }
+
+    if (flags & SOPT_UNSET)
+    {
+	Py_INCREF(Py_None);
+	return Py_None;
+    }
+    else if (flags & SOPT_BOOL)
+    {
+	PyObject *r;
+	r = numval ? Py_True : Py_False;
+	Py_INCREF(r);
+	return r;
+    }
+    else if (flags & SOPT_NUM)
+	return PyInt_FromLong(numval);
+    else if (flags & SOPT_STRING)
+    {
+	if (stringval)
+	    return PyBytes_FromString((char *) stringval);
+	else
+	{
+	    PyErr_SetString(PyExc_ValueError, "Unable to get option value");
+	    return NULL;
+	}
+    }
+    else
+    {
+	PyErr_SetVim("Internal error: unknown option type. Should not happen");
+	return NULL;
+    }
+}
+
+    static int
+set_option_value_for(key, numval, stringval, opt_flags, opt_type, from)
+    char_u	*key;
+    int		numval;
+    char_u	*stringval;
+    int		opt_flags;
+    int		opt_type;
+    void	*from;
+{
+    win_T	*save_curwin;
+    tabpage_T	*save_curtab;
+    aco_save_T	aco;
+    int		r = 0;
+
+    switch (opt_type)
+    {
+	case SREQ_WIN:
+	    if (switch_win(&save_curwin, &save_curtab, (win_T *) from, curtab)
+								      == FAIL)
+	    {
+		PyErr_SetVim("Problem while switching windows.");
+		return -1;
+	    }
+	    set_option_value(key, numval, stringval, opt_flags);
+	    restore_win(save_curwin, save_curtab);
+	    break;
+	case SREQ_BUF:
+	    aucmd_prepbuf(&aco, (buf_T *) from);
+	    set_option_value(key, numval, stringval, opt_flags);
+	    aucmd_restbuf(&aco);
+	    break;
+	case SREQ_GLOBAL:
+	    set_option_value(key, numval, stringval, opt_flags);
+	    break;
+    }
+    return r;
+}
+
+    static int
+OptionsAssItem(OptionsObject *this, PyObject *keyObject, PyObject *valObject)
+{
+    char_u	*key;
+    int		flags;
+    int		opt_flags;
+    int		r = 0;
+
+    if (this->Check(this->from))
+	return -1;
+
+    DICTKEY_DECL
+
+    DICTKEY_GET_NOTEMPTY(-1)
+
+    flags = get_option_value_strict(key, NULL, NULL,
+				    this->opt_type, this->from);
+
+    DICTKEY_UNREF
+
+    if (flags == 0)
+    {
+	PyErr_SetString(PyExc_KeyError, "Option does not exist in given scope");
+	return -1;
+    }
+
+    if (valObject == NULL)
+    {
+	if (this->opt_type == SREQ_GLOBAL)
+	{
+	    PyErr_SetString(PyExc_ValueError, "Unable to unset global option");
+	    return -1;
+	}
+	else if (!(flags & SOPT_GLOBAL))
+	{
+	    PyErr_SetString(PyExc_ValueError, "Unable to unset option without "
+						"global value");
+	    return -1;
+	}
+	else
+	{
+	    unset_global_local_option(key, this->from);
+	    return 0;
+	}
+    }
+
+    opt_flags = (this->opt_type ? OPT_LOCAL : OPT_GLOBAL);
+
+    if (flags & SOPT_BOOL)
+    {
+	if (!PyBool_Check(valObject))
+	{
+	    PyErr_SetString(PyExc_ValueError, "Object must be boolean");
+	    return -1;
+	}
+
+	r = set_option_value_for(key, (valObject == Py_True), NULL, opt_flags,
+				this->opt_type, this->from);
+    }
+    else if (flags & SOPT_NUM)
+    {
+	int val;
+
+#if PY_MAJOR_VERSION < 3
+	if (PyInt_Check(valObject))
+	    val = PyInt_AsLong(valObject);
+	else
+#endif
+	if (PyLong_Check(valObject))
+	    val = PyLong_AsLong(valObject);
+	else
+	{
+	    PyErr_SetString(PyExc_ValueError, "Object must be integer");
+	    return -1;
+	}
+
+	r = set_option_value_for(key, val, NULL, opt_flags,
+				this->opt_type, this->from);
+    }
+    else
+    {
+	char_u	*val;
+	if (PyBytes_Check(valObject))
+	{
+
+	    if (PyString_AsStringAndSize(valObject, (char **) &val, NULL) == -1)
+		return -1;
+	    if (val == NULL)
+		return -1;
+
+	    val = vim_strsave(val);
+	}
+	else if (PyUnicode_Check(valObject))
+	{
+	    PyObject	*bytes;
+
+	    bytes = PyUnicode_AsEncodedString(valObject, (char *)ENC_OPT, NULL);
+	    if (bytes == NULL)
+		return -1;
+
+	    if(PyString_AsStringAndSize(bytes, (char **) &val, NULL) == -1)
+		return -1;
+	    if (val == NULL)
+		return -1;
+
+	    val = vim_strsave(val);
+	    Py_XDECREF(bytes);
+	}
+	else
+	{
+	    PyErr_SetString(PyExc_ValueError, "Object must be string");
+	    return -1;
+	}
+
+	r = set_option_value_for(key, 0, val, opt_flags,
+				this->opt_type, this->from);
+	vim_free(val);
+    }
+
+    return r;
+}
+
+    static int
+dummy_check(void *arg UNUSED)
+{
+    return 0;
+}
+
+    static PyObject *
+OptionsNew(int opt_type, void *from, checkfun Check, PyObject *fromObj)
+{
+    OptionsObject	*self;
+
+    self = PyObject_NEW(OptionsObject, &OptionsType);
+    if (self == NULL)
+	return NULL;
+
+    self->opt_type = opt_type;
+    self->from = from;
+    self->Check = Check;
+    self->fromObj = fromObj;
+    if (fromObj)
+	Py_INCREF(fromObj);
+
+    return (PyObject *)(self);
+}
+
+    static void
+OptionsDestructor(PyObject *self)
+{
+    if (((OptionsObject *)(self))->fromObj)
+	Py_DECREF(((OptionsObject *)(self))->fromObj);
+    DESTRUCTOR_FINISH(self);
+}
+
+static PyMappingMethods OptionsAsMapping = {
+    (lenfunc)       NULL,
+    (binaryfunc)    OptionsItem,
+    (objobjargproc) OptionsAssItem,
+};
+
 #define INVALID_WINDOW_VALUE ((win_T *)(-1))
 
     static int
@@ -1534,8 +1807,12 @@ WindowAttr(WindowObject *this, char *nam
 #endif
     else if (strcmp(name, "vars") == 0)
 	return DictionaryNew(this->win->w_vars);
+    else if (strcmp(name, "options") == 0)
+	return OptionsNew(SREQ_WIN, this->win, (checkfun) CheckWindow,
+			(PyObject *) this);
     else if (strcmp(name,"__members__") == 0)
-	return Py_BuildValue("[ssss]", "buffer", "cursor", "height", "vars");
+	return Py_BuildValue("[sssss]", "buffer", "cursor", "height", "vars",
+		"options");
     else
 	return NULL;
 }
@@ -2499,8 +2776,11 @@ BufferAttr(BufferObject *this, char *nam
 	return Py_BuildValue(Py_ssize_t_fmt, this->buf->b_fnum);
     else if (strcmp(name, "vars") == 0)
 	return DictionaryNew(this->buf->b_vars);
+    else if (strcmp(name, "options") == 0)
+	return OptionsNew(SREQ_BUF, this->buf, (checkfun) CheckBuffer,
+			(PyObject *) this);
     else if (strcmp(name,"__members__") == 0)
-	return Py_BuildValue("[sss]", "name", "number", "vars");
+	return Py_BuildValue("[ssss]", "name", "number", "vars", "options");
     else
 	return NULL;
 }
@@ -3121,6 +3401,14 @@ init_structs(void)
     FunctionType.tp_getattr = FunctionGetattr;
 #endif
 
+    vim_memset(&OptionsType, 0, sizeof(OptionsType));
+    OptionsType.tp_name = "vim.options";
+    OptionsType.tp_basicsize = sizeof(OptionsObject);
+    OptionsType.tp_flags = Py_TPFLAGS_DEFAULT;
+    OptionsType.tp_doc = "object for manipulating options";
+    OptionsType.tp_as_mapping = &OptionsAsMapping;
+    OptionsType.tp_dealloc = OptionsDestructor;
+
 #if PY_MAJOR_VERSION >= 3
     vim_memset(&vimmodule, 0, sizeof(vimmodule));
     vimmodule.m_name = "vim";
diff --git a/src/if_python.c b/src/if_python.c
--- a/src/if_python.c
+++ b/src/if_python.c
@@ -1341,6 +1341,7 @@ PythonMod_Init(void)
     PyType_Ready(&BufListType);
     PyType_Ready(&WinListType);
     PyType_Ready(&CurrentType);
+    PyType_Ready(&OptionsType);
 
     /* Set sys.argv[] to avoid a crash in warn(). */
     PySys_SetArgv(1, argv);
@@ -1360,6 +1361,9 @@ PythonMod_Init(void)
     tmp = DictionaryNew(&vimvardict);
     PyDict_SetItemString(dict, "vvars",   tmp);
     Py_DECREF(tmp);
+    tmp = OptionsNew(SREQ_GLOBAL, NULL, dummy_check, NULL);
+    PyDict_SetItemString(dict, "options", tmp);
+    Py_DECREF(tmp);
     PyDict_SetItemString(dict, "VAR_LOCKED",    PyInt_FromLong(VAR_LOCKED));
     PyDict_SetItemString(dict, "VAR_FIXED",     PyInt_FromLong(VAR_FIXED));
     PyDict_SetItemString(dict, "VAR_SCOPE",     PyInt_FromLong(VAR_SCOPE));
diff --git a/src/if_python3.c b/src/if_python3.c
--- a/src/if_python3.c
+++ b/src/if_python3.c
@@ -1628,6 +1628,7 @@ Py3Init_vim(void)
     PyType_Ready(&DictionaryType);
     PyType_Ready(&ListType);
     PyType_Ready(&FunctionType);
+    PyType_Ready(&OptionsType);
 
     /* Set sys.argv[] to avoid a crash in warn(). */
     PySys_SetArgv(1, argv);
@@ -1649,6 +1650,8 @@ Py3Init_vim(void)
 
     PyModule_AddObject(mod, "vars", DictionaryNew(&globvardict));
     PyModule_AddObject(mod, "vvars", DictionaryNew(&vimvardict));
+    PyModule_AddObject(mod, "options",
+	    OptionsNew(SREQ_GLOBAL, NULL, dummy_check, NULL));
 
 #define ADD_INT_CONSTANT(name, value) \
     tmp = PyLong_FromLong(value); \
diff --git a/src/option.c b/src/option.c
--- a/src/option.c
+++ b/src/option.c
@@ -8820,6 +8820,144 @@ get_option_value(name, numval, stringval
 }
 #endif
 
+#if defined(FEAT_PYTHON) || defined(FEAT_PYTHON3)
+/*
+ * Returns the option attributes and its value. Unlike the above function it
+ * will return either global value or local value of the option depending on
+ * what was requested, but it will never return global value if it was
+ * requested to return local one and vice versa. Neither it will return
+ * buffer-local value if it was requested to return window-local one.
+ *
+ * Pretends that option is absent if it is not present in the requested scope
+ * (i.e. has no global, window-local or buffer-local value depending on
+ * opt_type). Uses
+ *
+ * Returned flags:
+ *       0 hidden or unknown option
+ *  see SOPT_* in vim.h for other flags
+ *
+ * Possible opt_type values: see SREQ_* in vim.h
+ */
+    int
+get_option_value_strict(name, numval, stringval, opt_type, from)
+    char_u	*name;
+    long	*numval;
+    char_u	**stringval;	    /* NULL when only obtaining attributes */
+    int		opt_type;
+    void	*from;
+{
+    int		opt_idx;
+    char_u	*varp;
+    struct vimoption *p;
+    int		r = 0;
+
+    opt_idx = findoption(name);
+    if (opt_idx < 0)
+	return 0;
+
+    p = &(options[opt_idx]);
+
+    /* Hidden option */
+    if (p->var == NULL)
+	return 0;
+
+    if (p->flags & P_BOOL)
+	r |= SOPT_BOOL;
+    else if (p->flags & P_NUM)
+	r |= SOPT_NUM;
+    else if (p->flags & P_STRING)
+	r |= SOPT_STRING;
+
+    if (p->indir == PV_NONE)
+    {
+	if (opt_type == SREQ_GLOBAL)
+	    r |= SOPT_GLOBAL;
+	else
+	    return 0; /* Did not request global-only option */
+    }
+    else
+    {
+	if (p->indir & PV_BOTH)
+	    r |= SOPT_GLOBAL;
+	else if (opt_type == SREQ_GLOBAL)
+	    return 0; /* Requested global option */
+
+	if (p->indir & PV_WIN)
+	{
+	    if (opt_type == SREQ_BUF)
+		return 0; /* Did not request window-local option */
+	    else
+		r |= SOPT_WIN;
+	}
+	else if (p->indir & PV_BUF)
+	{
+	    if (opt_type == SREQ_WIN)
+		return 0; /* Did not request buffer-local option */
+	    else
+		r |= SOPT_BUF;
+	}
+    }
+
+    if (stringval == NULL)
+	return r;
+
+    if (opt_type == SREQ_GLOBAL)
+	varp = p->var;
+    else
+    {
+	if (opt_type == SREQ_BUF)
+	{
+	    /* Special case: 'modified' is b_changed, but we also want to
+	     * consider it set when 'ff' or 'fenc' changed. */
+	    if (p->indir == PV_MOD)
+	    {
+		*numval = bufIsChanged((buf_T *) from);
+		varp = NULL;
+	    }
+#ifdef FEAT_CRYPT
+	    else if (p->indir == PV_KEY)
+	    {
+		/* never return the value of the crypt key */
+		*stringval = NULL;
+		varp = NULL;
+	    }
+#endif
+	    else
+	    {
+		aco_save_T	aco;
+		aucmd_prepbuf(&aco, (buf_T *) from);
+		varp = get_varp(p);
+		aucmd_restbuf(&aco);
+	    }
+	}
+	else if (opt_type == SREQ_WIN)
+	{
+	    win_T	*save_curwin;
+	    save_curwin = curwin;
+	    curwin = (win_T *) from;
+	    curbuf = curwin->w_buffer;
+	    varp = get_varp(p);
+	    curwin = save_curwin;
+	    curbuf = curwin->w_buffer;
+	}
+	if (varp == p->var)
+	    return (r | SOPT_UNSET);
+    }
+
+    if (varp != NULL)
+    {
+	if (p->flags & P_STRING)
+	    *stringval = vim_strsave(*(char_u **)(varp));
+	else if (p->flags & P_NUM)
+	    *numval = *(long *) varp;
+	else
+	    *numval = *(int *)varp;
+    }
+
+    return r;
+}
+#endif
+
 /*
  * Set the value of option "name".
  * Use "string" for string options, use "number" for other options.
@@ -9557,6 +9695,87 @@ comp_col()
 }
 
 /*
+ * Unset local option value, similar to ":set opt<".
+ */
+
+    void
+unset_global_local_option(name, from)
+    char_u	*name;
+    void	*from;
+{
+    struct vimoption *p;
+    int		opt_idx;
+
+    buf_T *buf = (buf_T *) from;
+    win_T *win = (win_T *) from;
+
+    opt_idx = findoption(name);
+    p = &(options[opt_idx]);
+
+    switch ((int)p->indir)
+    {
+	/* global option with local value: use local value if it's been set */
+	case PV_EP:
+	    *buf->b_p_ep = NUL;
+	    break;
+	case PV_KP:
+	    *buf->b_p_kp = NUL;
+	    break;
+	case PV_PATH:
+	    *buf->b_p_path = NUL;
+	    break;
+	case PV_AR:
+	    buf->b_p_ar = -1;
+	    break;
+	case PV_TAGS:
+	    *buf->b_p_tags = NUL;
+	    break;
+#ifdef FEAT_FIND_ID
+	case PV_DEF:
+	    *buf->b_p_def = NUL;
+	    break;
+	case PV_INC:
+	    *buf->b_p_inc = NUL;
+	    break;
+#endif
+#ifdef FEAT_INS_EXPAND
+	case PV_DICT:
+	    *buf->b_p_dict = NUL;
+	    break;
+	case PV_TSR:
+	    *buf->b_p_tsr = NUL;
+	    break;
+#endif
+#ifdef FEAT_QUICKFIX
+	case PV_EFM:
+	    *buf->b_p_efm = NUL;
+	    break;
+	case PV_GP:
+	    *buf->b_p_gp = NUL;
+	    break;
+	case PV_MP:
+	    *buf->b_p_mp = NUL;
+	    break;
+#endif
+#if defined(FEAT_BEVAL) && defined(FEAT_EVAL)
+	case PV_BEXPR:
+	    *buf->b_p_bexpr = NUL;
+	    break;
+#endif
+#if defined(FEAT_CRYPT)
+	case PV_CM:
+	    *buf->b_p_cm = NUL;
+	    break;
+#endif
+#ifdef FEAT_STL_OPT
+	case PV_STL:
+	    *win->w_p_stl = NUL;
+	    break;
+#endif
+    }
+}
+
+/*
  * Get pointer to option variable, depending on local or global scope.
  */
     static char_u *
diff --git a/src/proto/eval.pro b/src/proto/eval.pro
--- a/src/proto/eval.pro
+++ b/src/proto/eval.pro
@@ -125,4 +125,6 @@ void last_set_msg __ARGS((scid_T scriptI
 void ex_oldfiles __ARGS((exarg_T *eap));
 int modify_fname __ARGS((char_u *src, int *usedlen, char_u **fnamep, char_u **bufp, int *fnamelen));
 char_u *do_string_sub __ARGS((char_u *str, char_u *pat, char_u *sub, char_u *flags));
+int switch_win __ARGS((win_T **, tabpage_T **, win_T *, tabpage_T *));
+void restore_win __ARGS((win_T *, tabpage_T *));
 /* vim: set ft=c : */
diff --git a/src/proto/option.pro b/src/proto/option.pro
--- a/src/proto/option.pro
+++ b/src/proto/option.pro
@@ -22,6 +22,7 @@ void set_string_option_direct __ARGS((ch
 char_u *check_colorcolumn __ARGS((win_T *wp));
 char_u *check_stl_option __ARGS((char_u *s));
 int get_option_value __ARGS((char_u *name, long *numval, char_u **stringval, int opt_flags));
+int get_option_value_strict __ARGS((char_u *name, long *numval, char_u **stringval, int opt_type, void *from));
 void set_option_value __ARGS((char_u *name, long number, char_u *string, int opt_flags));
 char_u *get_term_code __ARGS((char_u *tname));
 char_u *get_highlight_default __ARGS((void));
@@ -33,6 +34,7 @@ void free_termoptions __ARGS((void));
 void free_one_termoption __ARGS((char_u *var));
 void set_term_defaults __ARGS((void));
 void comp_col __ARGS((void));
+void unset_global_local_option __ARGS((char_u *name, void *from));
 char_u *get_equalprg __ARGS((void));
 void win_copy_options __ARGS((win_T *wp_from, win_T *wp_to));
 void copy_winopt __ARGS((winopt_T *from, winopt_T *to));
diff --git a/src/testdir/test86.in b/src/testdir/test86.in
--- a/src/testdir/test86.in
+++ b/src/testdir/test86.in
@@ -359,6 +359,125 @@ EOF
 :put =pyeval('vim.vars[''foo'']')
 :put =pyeval('vim.current.window.vars[''abc'']')
 :put =pyeval('vim.current.buffer.vars[''baz'']')
+:"
+:" Options
+:" paste:          boolean, global
+:" previewheight   number,  global
+:" operatorfunc:   string,  global
+:" number:         boolean, window-local
+:" numberwidth:    number,  window-local
+:" colorcolumn:    string,  window-local
+:" statusline:     string,  window-local/global
+:" autoindent:     boolean, buffer-local
+:" iminsert:       number,  buffer-local
+:" omnifunc:       string,  buffer-local
+:" preserveindent: boolean, buffer-local/global
+:" path:           string,  buffer-local/global
+:let g:bufs=[bufnr('%')]
+:new
+:let g:bufs+=[bufnr('%')]
+:vnew
+:let g:bufs+=[bufnr('%')]
+:wincmd j
+:vnew
+:let g:bufs+=[bufnr('%')]
+:wincmd l
+:fun RecVars(opt)
+:  let gval =string(eval('&g:'.a:opt))
+:  let wvals=join(map(range(1, 4),  'v:val.":".string(getwinvar(v:val, "&".a:opt))'))
+:  let bvals=join(map(copy(g:bufs), 'v:val.":".string(getbufvar(v:val, "&".a:opt))'))
+:  put ='  G: '.gval
+:  put ='  W: '.wvals
+:  put ='  B: '.wvals
+:endfun
+py << EOF
+def e(s, g=globals(), l=locals()):
+    try:
+        exec(s, g, l)
+    except Exception as e:
+        vim.command('throw ' + repr(e.__class__.__name__))
+
+def ev(s, g=globals(), l=locals()):
+    try:
+        return eval(s, g, l)
+    except Exception as e:
+        vim.command('throw ' + repr(e.__class__.__name__))
+        return 0
+EOF
+:function E(s)
+:   python e(vim.eval('a:s'))
+:endfunction
+:function Ev(s)
+:   return pyeval('ev(vim.eval("a:s"))')
+:endfunction
+:py gopts1=vim.options
+:py wopts1=vim.windows[2].options
+:py wopts2=vim.windows[0].options
+:py wopts3=vim.windows[1].options
+:py bopts1=vim.buffers[vim.bindeval("g:bufs")[2]].options
+:py bopts2=vim.buffers[vim.bindeval("g:bufs")[1]].options
+:py bopts3=vim.buffers[vim.bindeval("g:bufs")[0]].options
+:let lst=[]
+:let lst+=[['paste',          1,     0,     1,     2,      1,    1,      0    ]]
+:let lst+=[['previewheight',  5,     1,     6,     'a',    0,    1,      0    ]]
+:let lst+=[['operatorfunc',   'A',   'B',   'C',   2,      0,    1,      0    ]]
+:let lst+=[['number',         0,     1,     1,     0,      1,    0,      1    ]]
+:let lst+=[['numberwidth',    2,     3,     5,     -100,   0,    0,      1    ]]
+:let lst+=[['colorcolumn',    '+1',  '+2',  '+3',  'abc',  0,    0,      1    ]]
+:let lst+=[['statusline',     '1',   '2',   '4',   0,      0,    1,      1    ]]
+:let lst+=[['autoindent',     0,     1,     1,     2,      1,    0,      2    ]]
+:let lst+=[['iminsert',       0,     2,     1,     3,      0,    0,      2    ]]
+:let lst+=[['omnifunc',       'A',   'B',   'C',   1,      0,    0,      2    ]]
+:let lst+=[['preserveindent', 0,     1,     1,     2,      1,    1,      2    ]]
+:let lst+=[['path',           '.,,', ',,',  '.',   0,      0,    1,      2    ]]
+:for       [oname,            oval1, oval2, oval3, invval, bool, global, local] in lst
+:   py oname=vim.eval('oname')
+:   py oval1=vim.bindeval('oval1')
+:   py oval2=vim.bindeval('oval2')
+:   py oval3=vim.bindeval('oval3')
+:   if invval is 0 || invval is 1
+:       py invval=bool(vim.bindeval('invval'))
+:   else
+:       py invval=vim.bindeval('invval')
+:   endif
+:   if bool
+:       py oval1=bool(oval1)
+:       py oval2=bool(oval2)
+:       py oval3=bool(oval3)
+:   endif
+:   put ='>>> '.oname
+:   for v in ['gopts1', 'wopts1', 'bopts1']
+:       try
+:           put ='  p/'.v.': '.Ev('repr('.v.'['''.oname.'''])')
+:       catch
+:           put ='  p/'.v.'! '.v:exception
+:       endtry
+:       try
+:           call E(v.'["'.oname.'"]=invval')
+:       catch
+:           put ='  inv: '.string(invval).'! '.v:exception
+:       endtry
+:       for vv in (v is# 'gopts1' ? [v] : [v, v[:-2].'2', v[:-2].'3'])
+:           let val=substitute(vv, '^.opts', 'oval', '')
+:           try
+:               call E(vv.'["'.oname.'"]='.val)
+:           catch
+:               put ='  '.vv.'! '.v:exception
+:           endtry
+:       endfor
+:   endfor
+:   call RecVars(oname)
+:   for v in ['wopts3', 'bopts3']
+:       try
+:           call E('del '.v.'["'.oname.'"]')
+:       catch
+:           put ='  del '.v.'! '.v:exception
+:       endtry
+:   endfor
+:   call RecVars(oname)
+endtry
+:endfor
+:only
 :endfun
 :"
 :call Test()
diff --git a/src/testdir/test86.ok b/src/testdir/test86.ok
--- a/src/testdir/test86.ok
+++ b/src/testdir/test86.ok
@@ -80,3 +80,229 @@ Abc
 bac
 def
 bar
+>>> paste
+  p/gopts1: False
+  inv: 2! ValueError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 2! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 1
+  W: 1:1 2:1 3:1 4:1
+  B: 1:1 2:1 3:1 4:1
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 1
+  W: 1:1 2:1 3:1 4:1
+  B: 1:1 2:1 3:1 4:1
+>>> previewheight
+  p/gopts1: 12
+  inv: 'a'! ValueError
+  p/wopts1! KeyError
+  inv: 'a'! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 'a'! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 5
+  W: 1:5 2:5 3:5 4:5
+  B: 1:5 2:5 3:5 4:5
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 5
+  W: 1:5 2:5 3:5 4:5
+  B: 1:5 2:5 3:5 4:5
+>>> operatorfunc
+  p/gopts1: ''
+  inv: 2! ValueError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 2! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 'A'
+  W: 1:'A' 2:'A' 3:'A' 4:'A'
+  B: 1:'A' 2:'A' 3:'A' 4:'A'
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 'A'
+  W: 1:'A' 2:'A' 3:'A' 4:'A'
+  B: 1:'A' 2:'A' 3:'A' 4:'A'
+>>> number
+  p/gopts1! KeyError
+  inv: 0! KeyError
+  gopts1! KeyError
+  p/wopts1: False
+  p/bopts1! KeyError
+  inv: 0! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> numberwidth
+  p/gopts1! KeyError
+  inv: -100! KeyError
+  gopts1! KeyError
+  p/wopts1: 8
+  p/bopts1! KeyError
+  inv: -100! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 8
+  W: 1:3 2:5 3:2 4:8
+  B: 1:3 2:5 3:2 4:8
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: 8
+  W: 1:3 2:5 3:2 4:8
+  B: 1:3 2:5 3:2 4:8
+>>> colorcolumn
+  p/gopts1! KeyError
+  inv: 'abc'! KeyError
+  gopts1! KeyError
+  p/wopts1: ''
+  p/bopts1! KeyError
+  inv: 'abc'! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: ''
+  W: 1:'+2' 2:'+3' 3:'+1' 4:''
+  B: 1:'+2' 2:'+3' 3:'+1' 4:''
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: ''
+  W: 1:'+2' 2:'+3' 3:'+1' 4:''
+  B: 1:'+2' 2:'+3' 3:'+1' 4:''
+>>> statusline
+  p/gopts1: ''
+  inv: 0! ValueError
+  p/wopts1: None
+  inv: 0! ValueError
+  p/bopts1! KeyError
+  inv: 0! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: '1'
+  W: 1:'2' 2:'4' 3:'1' 4:'1'
+  B: 1:'2' 2:'4' 3:'1' 4:'1'
+  del bopts3! KeyError
+  G: '1'
+  W: 1:'2' 2:'1' 3:'1' 4:'1'
+  B: 1:'2' 2:'1' 3:'1' 4:'1'
+>>> autoindent
+  p/gopts1! KeyError
+  inv: 2! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: False
+  inv: 2! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> iminsert
+  p/gopts1! KeyError
+  inv: 3! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 3! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: 2
+  G: 1
+  W: 1:2 2:1 3:0 4:2
+  B: 1:2 2:1 3:0 4:2
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 1
+  W: 1:2 2:1 3:0 4:2
+  B: 1:2 2:1 3:0 4:2
+>>> omnifunc
+  p/gopts1! KeyError
+  inv: 1! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 1! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: ''
+  inv: 1! ValueError
+  G: ''
+  W: 1:'B' 2:'C' 3:'A' 4:''
+  B: 1:'B' 2:'C' 3:'A' 4:''
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: ''
+  W: 1:'B' 2:'C' 3:'A' 4:''
+  B: 1:'B' 2:'C' 3:'A' 4:''
+>>> preserveindent
+  p/gopts1! KeyError
+  inv: 2! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: False
+  inv: 2! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> path
+  p/gopts1: '.,/usr/include,,'
+  inv: 0! ValueError
+  p/wopts1! KeyError
+  inv: 0! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: None
+  inv: 0! ValueError
+  G: '.,,'
+  W: 1:',,' 2:'.' 3:'.,,' 4:'.,,'
+  B: 1:',,' 2:'.' 3:'.,,' 4:'.,,'
+  del wopts3! KeyError
+  G: '.,,'
+  W: 1:',,' 2:'.,,' 3:'.,,' 4:'.,,'
+  B: 1:',,' 2:'.,,' 3:'.,,' 4:'.,,'
diff --git a/src/testdir/test87.in b/src/testdir/test87.in
--- a/src/testdir/test87.in
+++ b/src/testdir/test87.in
@@ -328,6 +328,125 @@ EOF
 :put =py3eval('vim.vars[''foo'']')
 :put =py3eval('vim.current.window.vars[''abc'']')
 :put =py3eval('vim.current.buffer.vars[''baz'']')
+:"
+:" Options
+:" paste:          boolean, global
+:" previewheight   number,  global
+:" operatorfunc:   string,  global
+:" number:         boolean, window-local
+:" numberwidth:    number,  window-local
+:" colorcolumn:    string,  window-local
+:" statusline:     string,  window-local/global
+:" autoindent:     boolean, buffer-local
+:" iminsert:       number,  buffer-local
+:" omnifunc:       string,  buffer-local
+:" preserveindent: boolean, buffer-local/global
+:" path:           string,  buffer-local/global
+:let g:bufs=[bufnr('%')]
+:new
+:let g:bufs+=[bufnr('%')]
+:vnew
+:let g:bufs+=[bufnr('%')]
+:wincmd j
+:vnew
+:let g:bufs+=[bufnr('%')]
+:wincmd l
+:fun RecVars(opt)
+:  let gval =string(eval('&g:'.a:opt))
+:  let wvals=join(map(range(1, 4),  'v:val.":".string(getwinvar(v:val, "&".a:opt))'))
+:  let bvals=join(map(copy(g:bufs), 'v:val.":".string(getbufvar(v:val, "&".a:opt))'))
+:  put ='  G: '.gval
+:  put ='  W: '.wvals
+:  put ='  B: '.wvals
+:endfun
+py3 << EOF
+def e(s, g=globals(), l=locals()):
+    try:
+        exec(s, g, l)
+    except Exception as e:
+        vim.command('throw ' + repr(e.__class__.__name__))
+
+def ev(s, g=globals(), l=locals()):
+    try:
+        return eval(s, g, l)
+    except Exception as e:
+        vim.command('throw ' + repr(e.__class__.__name__))
+        return 0
+EOF
+:function E(s)
+:   python3 e(vim.eval('a:s'))
+:endfunction
+:function Ev(s)
+:   return py3eval('ev(vim.eval("a:s"))')
+:endfunction
+:py3 gopts1=vim.options
+:py3 wopts1=vim.windows[2].options
+:py3 wopts2=vim.windows[0].options
+:py3 wopts3=vim.windows[1].options
+:py3 bopts1=vim.buffers[vim.bindeval("g:bufs")[2]].options
+:py3 bopts2=vim.buffers[vim.bindeval("g:bufs")[1]].options
+:py3 bopts3=vim.buffers[vim.bindeval("g:bufs")[0]].options
+:let lst=[]
+:let lst+=[['paste',          1,     0,     1,     2,      1,    1,      0    ]]
+:let lst+=[['previewheight',  5,     1,     6,     'a',    0,    1,      0    ]]
+:let lst+=[['operatorfunc',   'A',   'B',   'C',   2,      0,    1,      0    ]]
+:let lst+=[['number',         0,     1,     1,     0,      1,    0,      1    ]]
+:let lst+=[['numberwidth',    2,     3,     5,     -100,   0,    0,      1    ]]
+:let lst+=[['colorcolumn',    '+1',  '+2',  '+3',  'abc',  0,    0,      1    ]]
+:let lst+=[['statusline',     '1',   '2',   '4',   0,      0,    1,      1    ]]
+:let lst+=[['autoindent',     0,     1,     1,     2,      1,    0,      2    ]]
+:let lst+=[['iminsert',       0,     2,     1,     3,      0,    0,      2    ]]
+:let lst+=[['omnifunc',       'A',   'B',   'C',   1,      0,    0,      2    ]]
+:let lst+=[['preserveindent', 0,     1,     1,     2,      1,    1,      2    ]]
+:let lst+=[['path',           '.,,', ',,',  '.',   0,      0,    1,      2    ]]
+:for       [oname,            oval1, oval2, oval3, invval, bool, global, local] in lst
+:   py3 oname=vim.eval('oname')
+:   py3 oval1=vim.bindeval('oval1')
+:   py3 oval2=vim.bindeval('oval2')
+:   py3 oval3=vim.bindeval('oval3')
+:   if invval is 0 || invval is 1
+:       py3 invval=bool(vim.bindeval('invval'))
+:   else
+:       py3 invval=vim.bindeval('invval')
+:   endif
+:   if bool
+:       py3 oval1=bool(oval1)
+:       py3 oval2=bool(oval2)
+:       py3 oval3=bool(oval3)
+:   endif
+:   put ='>>> '.oname
+:   for v in ['gopts1', 'wopts1', 'bopts1']
+:       try
+:           put ='  p/'.v.': '.Ev('repr('.v.'['''.oname.'''])')
+:       catch
+:           put ='  p/'.v.'! '.v:exception
+:       endtry
+:       try
+:           call E(v.'["'.oname.'"]=invval')
+:       catch
+:           put ='  inv: '.string(invval).'! '.v:exception
+:       endtry
+:       for vv in (v is# 'gopts1' ? [v] : [v, v[:-2].'2', v[:-2].'3'])
+:           let val=substitute(vv, '^.opts', 'oval', '')
+:           try
+:               call E(vv.'["'.oname.'"]='.val)
+:           catch
+:               put ='  '.vv.'! '.v:exception
+:           endtry
+:       endfor
+:   endfor
+:   call RecVars(oname)
+:   for v in ['wopts3', 'bopts3']
+:       try
+:           call E('del '.v.'["'.oname.'"]')
+:       catch
+:           put ='  del '.v.'! '.v:exception
+:       endtry
+:   endfor
+:   call RecVars(oname)
+endtry
+:endfor
+:only
 :endfun
 :"
 :call Test()
diff --git a/src/testdir/test87.ok b/src/testdir/test87.ok
--- a/src/testdir/test87.ok
+++ b/src/testdir/test87.ok
@@ -69,3 +69,229 @@ Abc
 bac
 def
 bar
+>>> paste
+  p/gopts1: False
+  inv: 2! ValueError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 2! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 1
+  W: 1:1 2:1 3:1 4:1
+  B: 1:1 2:1 3:1 4:1
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 1
+  W: 1:1 2:1 3:1 4:1
+  B: 1:1 2:1 3:1 4:1
+>>> previewheight
+  p/gopts1: 12
+  inv: 'a'! ValueError
+  p/wopts1! KeyError
+  inv: 'a'! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 'a'! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 5
+  W: 1:5 2:5 3:5 4:5
+  B: 1:5 2:5 3:5 4:5
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 5
+  W: 1:5 2:5 3:5 4:5
+  B: 1:5 2:5 3:5 4:5
+>>> operatorfunc
+  p/gopts1: b''
+  inv: 2! ValueError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1! KeyError
+  inv: 2! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 'A'
+  W: 1:'A' 2:'A' 3:'A' 4:'A'
+  B: 1:'A' 2:'A' 3:'A' 4:'A'
+  del wopts3! KeyError
+  del bopts3! KeyError
+  G: 'A'
+  W: 1:'A' 2:'A' 3:'A' 4:'A'
+  B: 1:'A' 2:'A' 3:'A' 4:'A'
+>>> number
+  p/gopts1! KeyError
+  inv: 0! KeyError
+  gopts1! KeyError
+  p/wopts1: False
+  p/bopts1! KeyError
+  inv: 0! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> numberwidth
+  p/gopts1! KeyError
+  inv: -100! KeyError
+  gopts1! KeyError
+  p/wopts1: 8
+  p/bopts1! KeyError
+  inv: -100! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: 8
+  W: 1:3 2:5 3:2 4:8
+  B: 1:3 2:5 3:2 4:8
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: 8
+  W: 1:3 2:5 3:2 4:8
+  B: 1:3 2:5 3:2 4:8
+>>> colorcolumn
+  p/gopts1! KeyError
+  inv: 'abc'! KeyError
+  gopts1! KeyError
+  p/wopts1: b''
+  p/bopts1! KeyError
+  inv: 'abc'! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: ''
+  W: 1:'+2' 2:'+3' 3:'+1' 4:''
+  B: 1:'+2' 2:'+3' 3:'+1' 4:''
+  del wopts3! ValueError
+  del bopts3! KeyError
+  G: ''
+  W: 1:'+2' 2:'+3' 3:'+1' 4:''
+  B: 1:'+2' 2:'+3' 3:'+1' 4:''
+>>> statusline
+  p/gopts1: b''
+  inv: 0! ValueError
+  p/wopts1: None
+  inv: 0! ValueError
+  p/bopts1! KeyError
+  inv: 0! KeyError
+  bopts1! KeyError
+  bopts2! KeyError
+  bopts3! KeyError
+  G: '1'
+  W: 1:'2' 2:'4' 3:'1' 4:'1'
+  B: 1:'2' 2:'4' 3:'1' 4:'1'
+  del bopts3! KeyError
+  G: '1'
+  W: 1:'2' 2:'1' 3:'1' 4:'1'
+  B: 1:'2' 2:'1' 3:'1' 4:'1'
+>>> autoindent
+  p/gopts1! KeyError
+  inv: 2! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: False
+  inv: 2! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> iminsert
+  p/gopts1! KeyError
+  inv: 3! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 3! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: 2
+  G: 1
+  W: 1:2 2:1 3:0 4:2
+  B: 1:2 2:1 3:0 4:2
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 1
+  W: 1:2 2:1 3:0 4:2
+  B: 1:2 2:1 3:0 4:2
+>>> omnifunc
+  p/gopts1! KeyError
+  inv: 1! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 1! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: b''
+  inv: 1! ValueError
+  G: ''
+  W: 1:'B' 2:'C' 3:'A' 4:''
+  B: 1:'B' 2:'C' 3:'A' 4:''
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: ''
+  W: 1:'B' 2:'C' 3:'A' 4:''
+  B: 1:'B' 2:'C' 3:'A' 4:''
+>>> preserveindent
+  p/gopts1! KeyError
+  inv: 2! KeyError
+  gopts1! KeyError
+  p/wopts1! KeyError
+  inv: 2! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: False
+  inv: 2! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+  del wopts3! KeyError
+  del bopts3! ValueError
+  G: 0
+  W: 1:1 2:1 3:0 4:0
+  B: 1:1 2:1 3:0 4:0
+>>> path
+  p/gopts1: b'.,/usr/include,,'
+  inv: 0! ValueError
+  p/wopts1! KeyError
+  inv: 0! KeyError
+  wopts1! KeyError
+  wopts2! KeyError
+  wopts3! KeyError
+  p/bopts1: None
+  inv: 0! ValueError
+  G: '.,,'
+  W: 1:',,' 2:'.' 3:'.,,' 4:'.,,'
+  B: 1:',,' 2:'.' 3:'.,,' 4:'.,,'
+  del wopts3! KeyError
+  G: '.,,'
+  W: 1:',,' 2:'.,,' 3:'.,,' 4:'.,,'
+  B: 1:',,' 2:'.,,' 3:'.,,' 4:'.,,'
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -729,6 +729,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    924,
+/**/
     923,
 /**/
     922,
diff --git a/src/vim.h b/src/vim.h
--- a/src/vim.h
+++ b/src/vim.h
@@ -2230,4 +2230,17 @@ typedef int VimClipboard;	/* This is req
 #define FILEINFO_READ_FAIL   2	/* CreateFile() failed */
 #define FILEINFO_INFO_FAIL   3	/* GetFileInformationByHandle() failed */
 
+/* Return value from get_option_value_strict */
+#define SOPT_BOOL	0x01	/* Boolean option */
+#define SOPT_NUM	0x02	/* Number option */
+#define SOPT_STRING	0x04	/* String option */
+#define SOPT_GLOBAL	0x08	/* Option has global value */
+#define SOPT_WIN	0x10	/* Option has window-local value */
+#define SOPT_BUF	0x20	/* Option has buffer-local value */
+#define SOPT_UNSET	0x40	/* Option does not have local value set */
+
+#define SREQ_GLOBAL	0	/* Request global option */
+#define SREQ_WIN	1	/* Request window-local option */
+#define SREQ_BUF	2	/* Request buffer-local option */
+
 #endif /* VIM__H */