diff --git a/Filelist b/Filelist
index 2aeea2800e..72a1f9685b 100644
--- a/Filelist
+++ b/Filelist
@@ -110,6 +110,7 @@ SRC_ALL =	\
 		src/testdir/setup.vim \
 		src/testdir/gui_init.vim \
 		src/testdir/setup_gui.vim \
+		src/testdir/gui_preinit.vim \
 		src/testdir/test[0-9]*.ok \
 		src/testdir/test[0-9]*a.ok \
 		src/testdir/test_[a-z]*.ok \
diff --git a/src/Makefile b/src/Makefile
index fbff5f8805..0112140f02 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2116,6 +2116,7 @@ test_arglist \
 	test_cdo \
 	test_channel \
 	test_charsearch \
+	test_charsearch_utf8 \
 	test_changedtick \
 	test_cindent \
 	test_cmdline \
diff --git a/src/buffer.c b/src/buffer.c
index 7fe41f00b2..2f6121bcf7 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -111,7 +111,7 @@ read_buffer(
     {
 	/* Set or reset 'modified' before executing autocommands, so that
 	 * it can be changed there. */
-	if (!readonlymode && !bufempty())
+	if (!readonlymode && !BUFEMPTY())
 	    changed();
 	else if (retval == OK)
 	    unchanged(curbuf, FALSE);
@@ -1963,7 +1963,7 @@ buflist_new(
 	    && curbuf != NULL
 	    && curbuf->b_ffname == NULL
 	    && curbuf->b_nwindows <= 1
-	    && (curbuf->b_ml.ml_mfp == NULL || bufempty()))
+	    && (curbuf->b_ml.ml_mfp == NULL || BUFEMPTY()))
     {
 	buf = curbuf;
 #ifdef FEAT_AUTOCMD
@@ -2338,7 +2338,7 @@ buflist_getfile(
 	/* If 'switchbuf' contains "split", "vsplit" or "newtab" and the
 	 * current buffer isn't empty: open new tab or window */
 	if (wp == NULL && (swb_flags & (SWB_VSPLIT | SWB_SPLIT | SWB_NEWTAB))
-							       && !bufempty())
+							       && !BUFEMPTY())
 	{
 	    if (swb_flags & SWB_NEWTAB)
 		tabpage_new();
@@ -5027,7 +5027,7 @@ do_arg_all(
 #ifdef FEAT_WINDOWS
     /* ":drop all" should re-use an empty window to avoid "--remote-tab"
      * leaving an empty tab page when executed locally. */
-    if (keep_tabs && bufempty() && curbuf->b_nwindows == 1
+    if (keep_tabs && BUFEMPTY() && curbuf->b_nwindows == 1
 			    && curbuf->b_ffname == NULL && !curbuf->b_changed)
 	use_firstwin = TRUE;
 #endif
diff --git a/src/charset.c b/src/charset.c
index 984d7653e7..29c587b521 100644
--- a/src/charset.c
+++ b/src/charset.c
@@ -870,7 +870,7 @@ win_linetabsize(win_T *wp, char_u *line, colnr_T len)
     char_u	*s;
 
     for (s = line; *s != NUL && (len == MAXCOL || s < line + len);
-								mb_ptr_adv(s))
+								MB_PTR_ADV(s))
 	col += win_lbr_chartabsize(wp, line, s, col, NULL);
     return (int)col;
 }
@@ -1026,7 +1026,7 @@ lbr_chartabsize_adv(
     int		retval;
 
     retval = lbr_chartabsize(line, *s, col);
-    mb_ptr_adv(*s);
+    MB_PTR_ADV(*s);
     return retval;
 }
 
@@ -1089,8 +1089,8 @@ win_lbr_chartabsize(
      * needs a break here
      */
     if (wp->w_p_lbr
-	    && vim_isbreak(c)
-	    && !vim_isbreak(s[1])
+	    && VIM_ISBREAK(c)
+	    && !VIM_ISBREAK((int)s[1])
 	    && wp->w_p_wrap
 # ifdef FEAT_WINDOWS
 	    && wp->w_width != 0
@@ -1115,12 +1115,12 @@ win_lbr_chartabsize(
 	for (;;)
 	{
 	    ps = s;
-	    mb_ptr_adv(s);
+	    MB_PTR_ADV(s);
 	    c = *s;
 	    if (!(c != NUL
-		    && (vim_isbreak(c)
-			|| (!vim_isbreak(c)
-			    && (col2 == col || !vim_isbreak(*ps))))))
+		    && (VIM_ISBREAK(c)
+			|| (!VIM_ISBREAK(c)
+			    && (col2 == col || !VIM_ISBREAK((int)*ps))))))
 		break;
 
 	    col2 += win_chartabsize(wp, s, col2);
@@ -1369,7 +1369,7 @@ getvcol(
 		break;
 
 	    vcol += incr;
-	    mb_ptr_adv(ptr);
+	    MB_PTR_ADV(ptr);
 	}
     }
     else
@@ -1390,7 +1390,7 @@ getvcol(
 		break;
 
 	    vcol += incr;
-	    mb_ptr_adv(ptr);
+	    MB_PTR_ADV(ptr);
 	}
     }
     if (start != NULL)
@@ -1403,7 +1403,8 @@ getvcol(
 		&& (State & NORMAL)
 		&& !wp->w_p_list
 		&& !virtual_active()
-		&& !(VIsual_active && (*p_sel == 'e' || ltoreq(*pos, VIsual)))
+		&& !(VIsual_active
+				&& (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual)))
 		)
 	    *cursor = vcol + incr - 1;	    /* cursor at end */
 	else
@@ -1496,7 +1497,7 @@ getvcols(
 {
     colnr_T	from1, from2, to1, to2;
 
-    if (ltp(pos1, pos2))
+    if (LT_POSP(pos1, pos2))
     {
 	getvvcol(wp, pos1, &from1, NULL, &to1);
 	getvvcol(wp, pos2, &from2, NULL, &to2);
@@ -1529,7 +1530,7 @@ skipwhite(char_u *q)
 {
     char_u	*p = q;
 
-    while (vim_iswhite(*p)) /* skip to next non-white */
+    while (VIM_ISWHITE(*p)) /* skip to next non-white */
 	++p;
     return p;
 }
diff --git a/src/config.h.in b/src/config.h.in
index 49ed596f47..a9bcf1ef33 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -446,6 +446,9 @@
 /* Define if fcntl()'s F_SETFD command knows about FD_CLOEXEC */
 #undef HAVE_FD_CLOEXEC
 
+/* Define if /proc/self/exe can be read */
+#undef HAVE_PROC_SELF_EXE
+
 /* Define if you want Cygwin to use the WIN32 clipboard, not compatible with X11*/
 #undef FEAT_CYGWIN_WIN32_CLIPBOARD
 
diff --git a/src/diff.c b/src/diff.c
index 435269984e..246c4e09ec 100644
--- a/src/diff.c
+++ b/src/diff.c
@@ -1667,7 +1667,7 @@ diff_cmp(char_u *s1, char_u *s2)
     p2 = s2;
     while (*p1 != NUL && *p2 != NUL)
     {
-	if (vim_iswhite(*p1) && vim_iswhite(*p2))
+	if (VIM_ISWHITE(*p1) && VIM_ISWHITE(*p2))
 	{
 	    p1 = skipwhite(p1);
 	    p2 = skipwhite(p2);
@@ -1994,8 +1994,8 @@ diff_find_change(
 	    while (line_org[si_org] != NUL)
 	    {
 		if ((diff_flags & DIFF_IWHITE)
-			&& vim_iswhite(line_org[si_org])
-			&& vim_iswhite(line_new[si_new]))
+			&& VIM_ISWHITE(line_org[si_org])
+			&& VIM_ISWHITE(line_new[si_new]))
 		{
 		    si_org = (int)(skipwhite(line_org + si_org) - line_org);
 		    si_new = (int)(skipwhite(line_new + si_new) - line_new);
@@ -2029,14 +2029,14 @@ diff_find_change(
 						&& ei_org >= 0 && ei_new >= 0)
 		{
 		    if ((diff_flags & DIFF_IWHITE)
-			    && vim_iswhite(line_org[ei_org])
-			    && vim_iswhite(line_new[ei_new]))
+			    && VIM_ISWHITE(line_org[ei_org])
+			    && VIM_ISWHITE(line_new[ei_new]))
 		    {
 			while (ei_org >= *startp
-					     && vim_iswhite(line_org[ei_org]))
+					     && VIM_ISWHITE(line_org[ei_org]))
 			    --ei_org;
 			while (ei_new >= si_new
-					     && vim_iswhite(line_new[ei_new]))
+					     && VIM_ISWHITE(line_new[ei_new]))
 			    --ei_new;
 		    }
 		    else
@@ -2202,7 +2202,7 @@ ex_diffgetput(exarg_T *eap)
     {
 	/* Buffer number or pattern given.  Ignore trailing white space. */
 	p = eap->arg + STRLEN(eap->arg);
-	while (p > eap->arg && vim_iswhite(p[-1]))
+	while (p > eap->arg && VIM_ISWHITE(p[-1]))
 	    --p;
 	for (i = 0; vim_isdigit(eap->arg[i]) && eap->arg + i < p; ++i)
 	    ;
@@ -2333,7 +2333,7 @@ ex_diffgetput(exarg_T *eap)
 		    end_skip = 0;
 	    }
 
-	    buf_empty = bufempty();
+	    buf_empty = BUFEMPTY();
 	    added = 0;
 	    for (i = 0; i < count; ++i)
 	    {
diff --git a/src/edit.c b/src/edit.c
index 0f5282f5c8..341c72b7cf 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -408,7 +408,7 @@ edit(
 	 * the "A" command, thus set State to avoid that. Also check that the
 	 * line number is still valid (lines may have been deleted).
 	 * Do not restore if v:char was set to a non-empty string. */
-	if (!equalpos(curwin->w_cursor, save_cursor)
+	if (!EQUAL_POS(curwin->w_cursor, save_cursor)
 # ifdef FEAT_EVAL
 		&& *get_vim_var_str(VV_CHAR) == NUL
 # endif
@@ -857,7 +857,7 @@ edit(
 
 		    if (str != NULL)
 		    {
-			for (p = str; *p != NUL; mb_ptr_adv(p))
+			for (p = str; *p != NUL; MB_PTR_ADV(p))
 			    ins_compl_addleader(PTR2CHAR(p));
 			vim_free(str);
 		    }
@@ -1501,7 +1501,7 @@ normalchar:
 		    if (*str != NUL && stop_arrow() != FAIL)
 		    {
 			/* Insert the new value of v:char literally. */
-			for (p = str; *p != NUL; mb_ptr_adv(p))
+			for (p = str; *p != NUL; MB_PTR_ADV(p))
 			{
 			    c = PTR2CHAR(p);
 			    if (c == CAR || c == K_KENTER || c == NL)
@@ -1640,7 +1640,7 @@ ins_redraw(
 # endif
 		)
 # ifdef FEAT_AUTOCMD
-	&& !equalpos(last_cursormoved, curwin->w_cursor)
+	&& !EQUAL_POS(last_cursormoved, curwin->w_cursor)
 # endif
 # ifdef FEAT_INS_EXPAND
 	&& !pum_visible()
@@ -2158,7 +2158,7 @@ truncate_spaces(char_u *line)
     int	    i;
 
     /* find start of trailing white space */
-    for (i = (int)STRLEN(line) - 1; i >= 0 && vim_iswhite(line[i]); i--)
+    for (i = (int)STRLEN(line) - 1; i >= 0 && VIM_ISWHITE(line[i]); i--)
     {
 	if (State & REPLACE_FLAG)
 	    replace_join(0);	    /* remove a NUL from the replace stack */
@@ -2367,7 +2367,7 @@ ins_compl_accept_char(int c)
 	case CTRL_X_OMNI:
 	    /* Command line and Omni completion can work with just about any
 	     * printable character, but do stop at white space. */
-	    return vim_isprintc(c) && !vim_iswhite(c);
+	    return vim_isprintc(c) && !VIM_ISWHITE(c);
 
 	case CTRL_X_WHOLE_LINE:
 	    /* For while line completion a space can be part of the line. */
@@ -2412,7 +2412,7 @@ ins_compl_add_infercase(
 	    actual_len = 0;
 	    while (*p != NUL)
 	    {
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 		++actual_len;
 	    }
 	}
@@ -2428,7 +2428,7 @@ ins_compl_add_infercase(
 	    actual_compl_length = 0;
 	    while (*p != NUL)
 	    {
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 		++actual_compl_length;
 	    }
 	}
@@ -2731,8 +2731,8 @@ ins_compl_longest_match(compl_T *match)
 #ifdef FEAT_MBYTE
 	    if (has_mbyte)
 	    {
-		mb_ptr_adv(p);
-		mb_ptr_adv(s);
+		MB_PTR_ADV(p);
+		MB_PTR_ADV(s);
 	    }
 	    else
 #endif
@@ -3483,7 +3483,7 @@ ins_compl_bs(void)
 
     line = ml_get_curline();
     p = line + curwin->w_cursor.col;
-    mb_ptr_back(line, p);
+    MB_PTR_BACK(line, p);
 
     /* Stop completion when the whole word was deleted.  For Omni completion
      * allow the word to be deleted, we won't match everything.
@@ -4037,7 +4037,7 @@ ins_compl_fixRedoBufForLeader(char_u *ptr_arg)
 	if (len > 0)
 	    len -= (*mb_head_off)(p, p + len);
 #endif
-	for (p += len; *p != NUL; mb_ptr_adv(p))
+	for (p += len; *p != NUL; MB_PTR_ADV(p))
 	    AppendCharToRedobuff(K_BS);
     }
     else
@@ -4144,7 +4144,7 @@ expand_by_function(
     }
     curwin->w_cursor = pos;	/* restore the cursor position */
     validate_cursor();
-    if (!equalpos(curwin->w_cursor, pos))
+    if (!EQUAL_POS(curwin->w_cursor, pos))
     {
 	EMSG(_(e_compldel));
 	goto theend;
@@ -5350,9 +5350,9 @@ ins_complete(int c, int enable_pum)
 	    {
 		char_u	*p = line + startcol;
 
-		mb_ptr_back(line, p);
+		MB_PTR_BACK(line, p);
 		while (p > line && vim_isfilec(PTR2CHAR(p)))
-		    mb_ptr_back(line, p);
+		    MB_PTR_BACK(line, p);
 		if (p == line && vim_isfilec(PTR2CHAR(p)))
 		    startcol = 0;
 		else
@@ -5422,7 +5422,7 @@ ins_complete(int c, int enable_pum)
 	    }
 	    curwin->w_cursor = pos;	/* restore the cursor position */
 	    validate_cursor();
-	    if (!equalpos(curwin->w_cursor, pos))
+	    if (!EQUAL_POS(curwin->w_cursor, pos))
 	    {
 		EMSG(_(e_compldel));
 		return FAIL;
@@ -6003,9 +6003,9 @@ insert_special(
 #endif
 
 #ifdef FEAT_MBYTE
-# define WHITECHAR(cc) (vim_iswhite(cc) && (!enc_utf8 || !utf_iscomposing(utf_ptr2char(ml_get_cursor() + 1))))
+# define WHITECHAR(cc) (VIM_ISWHITE(cc) && (!enc_utf8 || !utf_iscomposing(utf_ptr2char(ml_get_cursor() + 1))))
 #else
-# define WHITECHAR(cc) vim_iswhite(cc)
+# define WHITECHAR(cc) VIM_ISWHITE(cc)
 #endif
 
 /*
@@ -6051,7 +6051,7 @@ insertchar(
      */
     if (textwidth > 0
 	    && (force_format
-		|| (!vim_iswhite(c)
+		|| (!VIM_ISWHITE(c)
 		    && !((State & REPLACE_FLAG)
 #ifdef FEAT_VREPLACE
 			&& !(State & VREPLACE_FLAG)
@@ -6108,7 +6108,7 @@ insertchar(
 		++p;
 	    middle_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
 	    /* Don't count trailing white space for middle_len */
-	    while (middle_len > 0 && vim_iswhite(lead_end[middle_len - 1]))
+	    while (middle_len > 0 && VIM_ISWHITE(lead_end[middle_len - 1]))
 		--middle_len;
 
 	    /* Find the end-comment string */
@@ -6118,7 +6118,7 @@ insertchar(
 
 	    /* Skip white space before the cursor */
 	    i = curwin->w_cursor.col;
-	    while (--i >= 0 && vim_iswhite(line[i]))
+	    while (--i >= 0 && VIM_ISWHITE(line[i]))
 		;
 	    i++;
 
@@ -6307,7 +6307,7 @@ internal_format(
 	    )
     {
 	cc = gchar_cursor();
-	if (vim_iswhite(cc))
+	if (VIM_ISWHITE(cc))
 	{
 	    save_char = cc;
 	    pchar_cursor('x');
@@ -7045,13 +7045,13 @@ stop_insert(
 	    {
 		dec_cursor();
 		cc = gchar_cursor();
-		if (!vim_iswhite(cc))
+		if (!VIM_ISWHITE(cc))
 		    curwin->w_cursor = tpos;
 	    }
 
 	    auto_format(TRUE, FALSE);
 
-	    if (vim_iswhite(cc))
+	    if (VIM_ISWHITE(cc))
 	    {
 		if (gchar_cursor() != NUL)
 		    inc_cursor();
@@ -7087,7 +7087,7 @@ stop_insert(
 		if (gchar_cursor() == NUL && curwin->w_cursor.col > 0)
 		    --curwin->w_cursor.col;
 		cc = gchar_cursor();
-		if (!vim_iswhite(cc))
+		if (!VIM_ISWHITE(cc))
 		    break;
 		if (del_char(TRUE) == FAIL)
 		    break;  /* should not happen */
@@ -7237,7 +7237,7 @@ beginline(int flags)
 	{
 	    char_u  *ptr;
 
-	    for (ptr = ml_get_curline(); vim_iswhite(*ptr)
+	    for (ptr = ml_get_curline(); VIM_ISWHITE(*ptr)
 			       && !((flags & BL_FIX) && ptr[1] == NUL); ++ptr)
 		++curwin->w_cursor.col;
 	}
@@ -8961,7 +8961,7 @@ ins_bs(
      * can't backup past starting point unless 'backspace' > 1
      * can backup to a previous line if 'backspace' == 0
      */
-    if (       bufempty()
+    if (       BUFEMPTY()
 	    || (
 #ifdef FEAT_RIGHTLEFT
 		!revins_on &&
@@ -9183,7 +9183,7 @@ ins_bs(
 
 	    /* delete characters until we are at or before want_vcol */
 	    while (vcol > want_vcol
-		    && (cc = *(ml_get_cursor() - 1), vim_iswhite(cc)))
+		    && (cc = *(ml_get_cursor() - 1), VIM_ISWHITE(cc)))
 		ins_bs_one(&vcol);
 
 	    /* insert extra spaces until we are at want_vcol */
@@ -9495,7 +9495,7 @@ ins_mousescroll(int dir)
     }
 # endif
 
-    if (!equalpos(curwin->w_cursor, tpos))
+    if (!EQUAL_POS(curwin->w_cursor, tpos))
     {
 	start_arrow(&tpos);
 # ifdef FEAT_CINDENT
@@ -10089,7 +10089,7 @@ ins_tab(void)
 
 	/* Find first white before the cursor */
 	fpos = curwin->w_cursor;
-	while (fpos.col > 0 && vim_iswhite(ptr[-1]))
+	while (fpos.col > 0 && VIM_ISWHITE(ptr[-1]))
 	{
 	    --fpos.col;
 	    --ptr;
@@ -10110,7 +10110,7 @@ ins_tab(void)
 
 	/* Use as many TABs as possible.  Beware of 'breakindent', 'showbreak'
 	 * and 'linebreak' adding extra virtual columns. */
-	while (vim_iswhite(*ptr))
+	while (VIM_ISWHITE(*ptr))
 	{
 	    i = lbr_chartabsize(NULL, (char_u *)"\t", vcol);
 	    if (vcol + i > want_vcol)
@@ -10489,7 +10489,7 @@ ins_try_si(int c)
 	    ptr = ml_get(pos->lnum);
 	    i = pos->col;
 	    if (i > 0)		/* skip blanks before '{' */
-		while (--i > 0 && vim_iswhite(ptr[i]))
+		while (--i > 0 && VIM_ISWHITE(ptr[i]))
 		    ;
 	    curwin->w_cursor.lnum = pos->lnum;
 	    curwin->w_cursor.col = i;
diff --git a/src/eval.c b/src/eval.c
index 61843bcfba..e5e787b5e0 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1516,7 +1516,7 @@ list_arg_vars(exarg_T *eap, char_u *arg, int *first)
 	if (error || eap->skip)
 	{
 	    arg = find_name_end(arg, NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
-	    if (!vim_iswhite(*arg) && !ends_excmd(*arg))
+	    if (!VIM_ISWHITE(*arg) && !ends_excmd(*arg))
 	    {
 		emsg_severe = TRUE;
 		EMSG(_(e_trailing));
@@ -1856,7 +1856,7 @@ get_lval(
     if (expr_start != NULL)
     {
 	/* Don't expand the name when we already know there is an error. */
-	if (unlet && !vim_iswhite(*p) && !ends_excmd(*p)
+	if (unlet && !VIM_ISWHITE(*p) && !ends_excmd(*p)
 						    && *p != '[' && *p != '.')
 	{
 	    EMSG(_(e_trailing));
@@ -2449,7 +2449,7 @@ eval_for_line(
 	return fi;
 
     expr = skipwhite(expr);
-    if (expr[0] != 'i' || expr[1] != 'n' || !vim_iswhite(expr[2]))
+    if (expr[0] != 'i' || expr[1] != 'n' || !VIM_ISWHITE(expr[2]))
     {
 	EMSG(_("E690: Missing \"in\" after :for"));
 	return fi;
@@ -2551,8 +2551,8 @@ set_context_for_expression(
 	    for (p = arg + STRLEN(arg); p >= arg; )
 	    {
 		xp->xp_pattern = p;
-		mb_ptr_back(arg, p);
-		if (vim_iswhite(*p))
+		MB_PTR_BACK(arg, p);
+		if (VIM_ISWHITE(*p))
 		    break;
 	    }
 	    return;
@@ -2698,7 +2698,7 @@ ex_unletlock(
 							     FNE_CHECK_START);
 	if (lv.ll_name == NULL)
 	    error = TRUE;	    /* error but continue parsing */
-	if (name_end == NULL || (!vim_iswhite(*name_end)
+	if (name_end == NULL || (!VIM_ISWHITE(*name_end)
 						   && !ends_excmd(*name_end)))
 	{
 	    if (name_end != NULL)
@@ -4814,7 +4814,7 @@ get_string_tv(char_u **arg, typval_T *rettv, int evaluate)
     /*
      * Find the end of the string, skipping backslashed characters.
      */
-    for (p = *arg + 1; *p != NUL && *p != '"'; mb_ptr_adv(p))
+    for (p = *arg + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	{
@@ -4952,7 +4952,7 @@ get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate)
     /*
      * Find the end of the string, skipping ''.
      */
-    for (p = *arg + 1; *p != NUL; mb_ptr_adv(p))
+    for (p = *arg + 1; *p != NUL; MB_PTR_ADV(p))
     {
 	if (*p == '\'')
 	{
@@ -5910,7 +5910,7 @@ string_quote(char_u *str, int function)
     if (str != NULL)
     {
 	len += (unsigned)STRLEN(str);
-	for (p = str; *p != NUL; mb_ptr_adv(p))
+	for (p = str; *p != NUL; MB_PTR_ADV(p))
 	    if (*p == '\'')
 		++len;
     }
@@ -6369,12 +6369,12 @@ find_name_end(
 			|| *p == '{'
 			|| ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.'))
 			|| mb_nest != 0
-			|| br_nest != 0); mb_ptr_adv(p))
+			|| br_nest != 0); MB_PTR_ADV(p))
     {
 	if (*p == '\'')
 	{
 	    /* skip over 'string' to avoid counting [ and ] inside it. */
-	    for (p = p + 1; *p != NUL && *p != '\''; mb_ptr_adv(p))
+	    for (p = p + 1; *p != NUL && *p != '\''; MB_PTR_ADV(p))
 		;
 	    if (*p == NUL)
 		break;
@@ -6382,7 +6382,7 @@ find_name_end(
 	else if (*p == '"')
 	{
 	    /* skip over "str\"ing" to avoid counting [ and ] inside it. */
-	    for (p = p + 1; *p != NUL && *p != '"'; mb_ptr_adv(p))
+	    for (p = p + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p))
 		if (*p == '\\' && p[1] != NUL)
 		    ++p;
 	    if (*p == NUL)
@@ -6866,7 +6866,7 @@ handle_subscript(
 		|| (**arg == '.' && rettv->v_type == VAR_DICT)
 		|| (**arg == '(' && (!evaluate || rettv->v_type == VAR_FUNC
 					    || rettv->v_type == VAR_PARTIAL)))
-	    && !vim_iswhite(*(*arg - 1)))
+	    && !VIM_ISWHITE(*(*arg - 1)))
     {
 	if (**arg == '(')
 	{
@@ -9410,7 +9410,7 @@ shortpath_for_partial(
     /* Count up the path separators from the RHS.. so we know which part
      * of the path to return. */
     sepcount = 0;
-    for (p = *fnamep; p < *fnamep + *fnamelen; mb_ptr_adv(p))
+    for (p = *fnamep; p < *fnamep + *fnamelen; MB_PTR_ADV(p))
 	if (vim_ispathsep(*p))
 	    ++sepcount;
 
@@ -9528,7 +9528,7 @@ repeat:
 	}
 
 	/* When "/." or "/.." is used: force expansion to get rid of it. */
-	for (p = *fnamep; *p != NUL; mb_ptr_adv(p))
+	for (p = *fnamep; *p != NUL; MB_PTR_ADV(p))
 	{
 	    if (vim_ispathsep(*p)
 		    && p[1] == '.'
@@ -9658,7 +9658,7 @@ repeat:
 	*usedlen += 2;
 	s = get_past_head(*fnamep);
 	while (tail > s && after_pathsep(s, tail))
-	    mb_ptr_back(*fnamep, tail);
+	    MB_PTR_BACK(*fnamep, tail);
 	*fnamelen = (int)(tail - *fnamep);
 #ifdef VMS
 	if (*fnamelen > 0)
@@ -9677,7 +9677,7 @@ repeat:
 	else
 	{
 	    while (tail > s && !after_pathsep(s, tail))
-		mb_ptr_back(*fnamep, tail);
+		MB_PTR_BACK(*fnamep, tail);
 	}
     }
 
diff --git a/src/evalfunc.c b/src/evalfunc.c
index 6ec458abb5..c8d69eb1ca 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -3534,7 +3534,7 @@ f_foldtext(typval_T *argvars UNUSED, typval_T *rettv)
 	    }
 	}
 	count = (long)(foldend - foldstart + 1);
-	txt = ngettext("+-%s%3ld line: ", "+-%s%3ld lines: ", count);
+	txt = NGETTEXT("+-%s%3ld line: ", "+-%s%3ld lines: ", count);
 	r = alloc((unsigned)(STRLEN(txt)
 		    + STRLEN(dashes)	    /* for %s */
 		    + 20		    /* for %3ld */
@@ -9579,20 +9579,20 @@ do_searchpair(
 
     save_cursor = curwin->w_cursor;
     pos = curwin->w_cursor;
-    clearpos(&firstpos);
-    clearpos(&foundpos);
+    CLEAR_POS(&firstpos);
+    CLEAR_POS(&foundpos);
     pat = pat3;
     for (;;)
     {
 	n = searchit(curwin, curbuf, &pos, dir, pat, 1L,
 					   options, RE_SEARCH, lnum_stop, &tm);
-	if (n == FAIL || (firstpos.lnum != 0 && equalpos(pos, firstpos)))
+	if (n == FAIL || (firstpos.lnum != 0 && EQUAL_POS(pos, firstpos)))
 	    /* didn't find it or found the first match again: FAIL */
 	    break;
 
 	if (firstpos.lnum == 0)
 	    firstpos = pos;
-	if (equalpos(pos, foundpos))
+	if (EQUAL_POS(pos, foundpos))
 	{
 	    /* Found the same position again.  Can happen with a pattern that
 	     * has "\zs" at the end and searching backwards.  Advance one
diff --git a/src/ex_cmds.c b/src/ex_cmds.c
index c38687d740..64d7f6b847 100644
--- a/src/ex_cmds.c
+++ b/src/ex_cmds.c
@@ -256,7 +256,7 @@ linelen(int *has_tab)
 
     /* find the character after the last non-blank character */
     for (last = first + STRLEN(first);
-				last > first && vim_iswhite(last[-1]); --last)
+				last > first && VIM_ISWHITE(last[-1]); --last)
 	;
     save = *last;
     *last = NUL;
@@ -400,7 +400,7 @@ ex_sort(exarg_T *eap)
 
     for (p = eap->arg; *p != NUL; ++p)
     {
-	if (vim_iswhite(*p))
+	if (VIM_ISWHITE(*p))
 	    ;
 	else if (*p == 'i')
 	    sort_ic = TRUE;
@@ -683,7 +683,7 @@ ex_retab(exarg_T *eap)
 	did_undo = FALSE;
 	for (;;)
 	{
-	    if (vim_iswhite(ptr[col]))
+	    if (VIM_ISWHITE(ptr[col]))
 	    {
 		if (!got_tab && num_spaces == 0)
 		{
@@ -4211,7 +4211,7 @@ do_ecmd(
 
 	/* If autocommands change the cursor position or topline, we should
 	 * keep it.  Also when it moves within a line. */
-	if (!equalpos(curwin->w_cursor, orig_pos))
+	if (!EQUAL_POS(curwin->w_cursor, orig_pos))
 	{
 	    newlnum = curwin->w_cursor.lnum;
 	    newcol = curwin->w_cursor.col;
@@ -4807,7 +4807,7 @@ do_sub(exarg_T *eap)
 	which_pat = RE_SUBST;	/* use last substitute regexp */
 
 				/* new pattern and substitution */
-    if (eap->cmd[0] == 's' && *cmd != NUL && !vim_iswhite(*cmd)
+    if (eap->cmd[0] == 's' && *cmd != NUL && !VIM_ISWHITE(*cmd)
 		&& vim_strchr((char_u *)"0123456789cegriIp|\"", *cmd) == NULL)
     {
 				/* don't accept alphanumeric for separator */
@@ -4863,7 +4863,7 @@ do_sub(exarg_T *eap)
 	    }
 	    if (cmd[0] == '\\' && cmd[1] != 0)	/* skip escaped characters */
 		++cmd;
-	    mb_ptr_adv(cmd);
+	    MB_PTR_ADV(cmd);
 	}
 
 	if (!eap->skip)
@@ -6225,7 +6225,7 @@ ex_help(exarg_T *eap)
 
     /* remove trailing blanks */
     p = arg + STRLEN(arg) - 1;
-    while (p > arg && vim_iswhite(*p) && p[-1] != '\\')
+    while (p > arg && VIM_ISWHITE(*p) && p[-1] != '\\')
 	*p-- = NUL;
 
 #ifdef FEAT_MULTI_LANG
@@ -6809,7 +6809,7 @@ fix_help_buffer(void)
 	{
 	    line = ml_get_buf(curbuf, lnum, FALSE);
 	    len = (int)STRLEN(line);
-	    if (in_example && len > 0 && !vim_iswhite(line[0]))
+	    if (in_example && len > 0 && !VIM_ISWHITE(line[0]))
 	    {
 		/* End of example: non-white or '<' in first column. */
 		if (line[0] == '<')
@@ -7421,7 +7421,7 @@ ex_helptags(exarg_T *eap)
     int		add_help_tags = FALSE;
 
     /* Check for ":helptags ++t {dir}". */
-    if (STRNCMP(eap->arg, "++t", 3) == 0 && vim_iswhite(eap->arg[3]))
+    if (STRNCMP(eap->arg, "++t", 3) == 0 && VIM_ISWHITE(eap->arg[3]))
     {
 	add_help_tags = TRUE;
 	eap->arg = skipwhite(eap->arg + 3);
@@ -7754,7 +7754,7 @@ ex_sign(exarg_T *eap)
 	if (VIM_ISDIGIT(*arg))
 	{
 	    id = getdigits(&arg);
-	    if (!vim_iswhite(*arg) && *arg != NUL)
+	    if (!VIM_ISWHITE(*arg) && *arg != NUL)
 	    {
 		id = -1;
 		arg = arg1;
diff --git a/src/ex_cmds2.c b/src/ex_cmds2.c
index 51356d2b59..c66fcb17a6 100644
--- a/src/ex_cmds2.c
+++ b/src/ex_cmds2.c
@@ -3599,7 +3599,7 @@ add_pack_plugin(char_u *fname, void *cookie)
     {
 	/* directory is not yet in 'runtimepath', add it */
 	p4 = p3 = p2 = p1 = get_past_head(ffname);
-	for (p = p1; *p; mb_ptr_adv(p))
+	for (p = p1; *p; MB_PTR_ADV(p))
 	    if (vim_ispathsep_nocolon(*p))
 	    {
 		p4 = p3; p3 = p2; p2 = p1; p1 = p;
@@ -5256,7 +5256,7 @@ ex_language(exarg_T *eap)
      * Allow abbreviation, but require at least 3 characters to avoid
      * confusion with a two letter language name "me" or "ct". */
     p = skiptowhite(eap->arg);
-    if ((*p == NUL || vim_iswhite(*p)) && p - eap->arg >= 3)
+    if ((*p == NUL || VIM_ISWHITE(*p)) && p - eap->arg >= 3)
     {
 	if (STRNICMP(eap->arg, "messages", p - eap->arg) == 0)
 	{
diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 1dd67daca7..07bd4d9718 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -2020,7 +2020,7 @@ do_one_cmd(
 			if (save_msg_silent == -1)
 			    save_msg_silent = msg_silent;
 			++msg_silent;
-			if (*ea.cmd == '!' && !vim_iswhite(ea.cmd[-1]))
+			if (*ea.cmd == '!' && !VIM_ISWHITE(ea.cmd[-1]))
 			{
 			    /* ":silent!", but not "silent !cmd" */
 			    ea.cmd = skipwhite(ea.cmd + 1);
@@ -2778,7 +2778,7 @@ do_one_cmd(
      */
     if ((ea.argt & COUNT) && VIM_ISDIGIT(*ea.arg)
 	    && (!(ea.argt & BUFNAME) || *(p = skipdigits(ea.arg)) == NUL
-							  || vim_iswhite(*p)))
+							  || VIM_ISWHITE(*p)))
     {
 	n = getdigits(&ea.arg);
 	ea.arg = skipwhite(ea.arg);
@@ -2946,7 +2946,7 @@ do_one_cmd(
 	else
 	{
 	    p = ea.arg + STRLEN(ea.arg);
-	    while (p > ea.arg && vim_iswhite(p[-1]))
+	    while (p > ea.arg && VIM_ISWHITE(p[-1]))
 		--p;
 	}
 	ea.line2 = buflist_findpat(ea.arg, p, (ea.argt & BUFUNL) != 0,
@@ -3703,7 +3703,7 @@ set_one_cmd_context(
 		    return NULL;    /* It's a comment */
 		}
 	    }
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 	}
     }
 
@@ -3727,7 +3727,7 @@ set_one_cmd_context(
 	{
 	    if (*p == '\\' && *(p + 1) != NUL)
 		++p; /* skip over escaped character */
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 	}
     }
 
@@ -3764,7 +3764,7 @@ set_one_cmd_context(
 	    }
 	    /* An argument can contain just about everything, except
 	     * characters that end the command and white space. */
-	    else if (c == '|' || c == '\n' || c == '"' || (vim_iswhite(c)
+	    else if (c == '|' || c == '\n' || c == '"' || (VIM_ISWHITE(c)
 #ifdef SPACE_IN_FILENAME
 					 && (!(ea.argt & NOSPC) || usefilter)
 #endif
@@ -3787,7 +3787,7 @@ set_one_cmd_context(
 		    else
 #endif
 			len = 1;
-		    mb_ptr_adv(p);
+		    MB_PTR_ADV(p);
 		}
 		if (in_quote)
 		    bow = p;
@@ -3795,7 +3795,7 @@ set_one_cmd_context(
 		    xp->xp_pattern = p;
 		p -= len;
 	    }
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 	}
 
 	/*
@@ -4211,7 +4211,7 @@ set_one_cmd_context(
 			    arg = p + 1;
 			else if (*p == '\\' && *(p + 1) != NUL)
 			    ++p; /* skip over escaped character */
-			mb_ptr_adv(p);
+			MB_PTR_ADV(p);
 		    }
 		    xp->xp_pattern = arg;
 		}
@@ -5153,7 +5153,7 @@ expand_filename(
 			/* skip escaped characters */
 			if (p[1] && (*p == '\\' || *p == Ctrl_V))
 			    ++p;
-			else if (vim_iswhite(*p))
+			else if (VIM_ISWHITE(*p))
 			{
 			    *errormsgp = (char_u *)_("E172: Only one file name allowed");
 			    return FAIL;
@@ -5297,7 +5297,7 @@ separate_nextcmd(exarg_T *eap)
     p = eap->arg;
 #endif
 
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == Ctrl_V)
 	{
@@ -5397,7 +5397,7 @@ skip_cmd_arg(
 	    else
 		++p;
 	}
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     }
     return p;
 }
@@ -6353,7 +6353,7 @@ ex_command(exarg_T *eap)
     if (ASCII_ISALPHA(*p))
 	while (ASCII_ISALNUM(*p))
 	    ++p;
-    if (!ends_excmd(*p) && !vim_iswhite(*p))
+    if (!ends_excmd(*p) && !VIM_ISWHITE(*p))
     {
 	EMSG(_("E182: Invalid command name"));
 	return;
@@ -6481,7 +6481,7 @@ uc_split_args(char_u *arg, size_t *lenp)
 	    len += 2;
 	    p += 2;
 	}
-	else if (p[0] == '\\' && vim_iswhite(p[1]))
+	else if (p[0] == '\\' && VIM_ISWHITE(p[1]))
 	{
 	    len += 1;
 	    p += 2;
@@ -6491,7 +6491,7 @@ uc_split_args(char_u *arg, size_t *lenp)
 	    len += 2;
 	    p += 1;
 	}
-	else if (vim_iswhite(*p))
+	else if (VIM_ISWHITE(*p))
 	{
 	    p = skipwhite(p);
 	    if (*p == NUL)
@@ -6529,7 +6529,7 @@ uc_split_args(char_u *arg, size_t *lenp)
 	    *q++ = '\\';
 	    p += 2;
 	}
-	else if (p[0] == '\\' && vim_iswhite(p[1]))
+	else if (p[0] == '\\' && VIM_ISWHITE(p[1]))
 	{
 	    *q++ = p[1];
 	    p += 2;
@@ -6539,7 +6539,7 @@ uc_split_args(char_u *arg, size_t *lenp)
 	    *q++ = '\\';
 	    *q++ = *p++;
 	}
-	else if (vim_iswhite(*p))
+	else if (VIM_ISWHITE(*p))
 	{
 	    p = skipwhite(p);
 	    if (*p == NUL)
@@ -7095,7 +7095,7 @@ parse_addr_type_arg(
     {
 	char_u	*err = value;
 
-	for (i = 0; err[i] != NUL && !vim_iswhite(err[i]); i++)
+	for (i = 0; err[i] != NUL && !VIM_ISWHITE(err[i]); i++)
 	    ;
 	err[i] = NUL;
 	EMSG2(_("E180: Invalid address type value: %s"), err);
@@ -11896,7 +11896,7 @@ ses_put_fname(FILE *fd, char_u *name, unsigned *flagp)
     if (*flagp & SSOP_SLASH)
     {
 	/* change all backslashes to forward slashes */
-	for (p = sname; *p != NUL; mb_ptr_adv(p))
+	for (p = sname; *p != NUL; MB_PTR_ADV(p))
 	    if (*p == '\\')
 		*p = '/';
     }
@@ -12299,7 +12299,7 @@ ex_match(exarg_T *eap)
     if (ends_excmd(*eap->arg))
 	end = eap->arg;
     else if ((STRNICMP(eap->arg, "none", 4) == 0
-		&& (vim_iswhite(eap->arg[4]) || ends_excmd(eap->arg[4]))))
+		&& (VIM_ISWHITE(eap->arg[4]) || ends_excmd(eap->arg[4]))))
 	end = eap->arg + 4;
     else
     {
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 08f04d12f7..6fff93841b 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -234,7 +234,7 @@ getcmdline(
 
     ccline.overstrike = FALSE;		    /* always start in insert mode */
 #ifdef FEAT_SEARCH_EXTRA
-    clearpos(&match_end);
+    CLEAR_POS(&match_end);
     save_cursor = curwin->w_cursor;	    /* may be restored later */
     search_start = curwin->w_cursor;
     old_curswant = curwin->w_curswant;
@@ -1487,7 +1487,7 @@ getcmdline(
 		    if (did_incsearch)
 		    {
 			curwin->w_cursor = match_end;
-			if (!equalpos(curwin->w_cursor, search_start))
+			if (!EQUAL_POS(curwin->w_cursor, search_start))
 			{
 			    c = gchar_cursor();
 			    /* If 'ignorecase' and 'smartcase' are set and the
@@ -1715,7 +1715,7 @@ getcmdline(
 			    search_start = t;
 			    (void)decl(&search_start);
 			}
-			if (lt(t, search_start) && c == Ctrl_G)
+			if (LT_POS(t, search_start) && c == Ctrl_G)
 			{
 			    /* wrap around */
 			    search_start = t;
@@ -2015,7 +2015,7 @@ returncmd:
 	    curwin->w_cursor = save_cursor;
 	else
 	{
-	    if (!equalpos(save_cursor, search_start))
+	    if (!EQUAL_POS(save_cursor, search_start))
 	    {
 		/* put the '" mark at the original position */
 		curwin->w_cursor = save_cursor;
@@ -4307,7 +4307,7 @@ sm_gettail(char_u *s)
 	    t = p;
 	    had_sep = FALSE;
 	}
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     }
     return t;
 }
@@ -5384,7 +5384,7 @@ ExpandRTDir(
 	if (e - 4 > s && STRNICMP(e - 4, ".vim", 4) == 0)
 	{
 	    e -= 4;
-	    for (s = e; s > match; mb_ptr_back(match, s))
+	    for (s = e; s > match; MB_PTR_BACK(match, s))
 		if (s < match || vim_ispathsep(*s))
 		    break;
 	    ++s;
@@ -6041,7 +6041,7 @@ remove_key_from_history(void)
 		if (p == NULL)
 		    break;
 		++p;
-		for (i = 0; p[i] && !vim_iswhite(p[i]); ++i)
+		for (i = 0; p[i] && !VIM_ISWHITE(p[i]); ++i)
 		    if (p[i] == '\\' && p[i + 1])
 			++i;
 		STRMOVE(p, p + i);
diff --git a/src/fileio.c b/src/fileio.c
index 5f139461a8..6b269708e5 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -6252,7 +6252,7 @@ buf_modname(
      * Then truncate what is after the '/', '\' or ':' to 8 characters for
      * MSDOS and 26 characters for AMIGA, a lot more for UNIX.
      */
-    for (ptr = retval + fnamelen; ptr > retval; mb_ptr_back(retval, ptr))
+    for (ptr = retval + fnamelen; ptr > retval; MB_PTR_BACK(retval, ptr))
     {
 	if (*ext == '.'
 #ifdef USE_LONG_FNAME
@@ -7156,7 +7156,7 @@ buf_reload(buf_T *buf, int orig_mode)
 	 * the old contents.  Can't use memory only, the file might be
 	 * too big.  Use a hidden buffer to move the buffer contents to.
 	 */
-	if (bufempty() || saved == FAIL)
+	if (BUFEMPTY() || saved == FAIL)
 	    savebuf = NULL;
 	else
 	{
@@ -7199,7 +7199,7 @@ buf_reload(buf_T *buf, int orig_mode)
 		{
 		    /* Put the text back from the save buffer.  First
 		     * delete any lines that readfile() added. */
-		    while (!bufempty())
+		    while (!BUFEMPTY())
 			if (ml_delete(buf->b_ml.ml_line_count, FALSE) == FAIL)
 			    break;
 		    (void)move_lines(savebuf, buf);
@@ -8201,7 +8201,7 @@ event_name2nr(char_u *start, char_u **end)
     int		len;
 
     /* the event name ends with end of line, '|', a blank or a comma */
-    for (p = start; *p && !vim_iswhite(*p) && *p != ',' && *p != '|'; ++p)
+    for (p = start; *p && !VIM_ISWHITE(*p) && *p != ',' && *p != '|'; ++p)
 	;
     for (i = 0; event_names[i].name != NULL; ++i)
     {
@@ -8244,7 +8244,7 @@ find_end_event(
 
     if (*arg == '*')
     {
-	if (arg[1] && !vim_iswhite(arg[1]))
+	if (arg[1] && !VIM_ISWHITE(arg[1]))
 	{
 	    EMSG2(_("E215: Illegal character after *: %s"), arg);
 	    return NULL;
@@ -8253,7 +8253,7 @@ find_end_event(
     }
     else
     {
-	for (pat = arg; *pat && *pat != '|' && !vim_iswhite(*pat); pat = p)
+	for (pat = arg; *pat && *pat != '|' && !VIM_ISWHITE(*pat); pat = p)
 	{
 	    if ((int)event_name2nr(pat, &p) >= (int)NUM_EVENTS)
 	    {
@@ -8432,7 +8432,7 @@ do_autocmd(char_u *arg_in, int forceit)
 	 * Scan over the pattern.  Put a NUL at the end.
 	 */
 	cmd = pat;
-	while (*cmd && (!vim_iswhite(*cmd) || cmd[-1] == '\\'))
+	while (*cmd && (!VIM_ISWHITE(*cmd) || cmd[-1] == '\\'))
 	    cmd++;
 	if (*cmd)
 	    *cmd++ = NUL;
@@ -8458,7 +8458,7 @@ do_autocmd(char_u *arg_in, int forceit)
 	 * Check for "nested" flag.
 	 */
 	cmd = skipwhite(cmd);
-	if (*cmd != NUL && STRNCMP(cmd, "nested", 6) == 0 && vim_iswhite(cmd[6]))
+	if (*cmd != NUL && STRNCMP(cmd, "nested", 6) == 0 && VIM_ISWHITE(cmd[6]))
 	{
 	    nested = TRUE;
 	    cmd = skipwhite(cmd + 6);
@@ -8501,7 +8501,7 @@ do_autocmd(char_u *arg_in, int forceit)
     }
     else
     {
-	while (*arg && *arg != '|' && !vim_iswhite(*arg))
+	while (*arg && *arg != '|' && !VIM_ISWHITE(*arg))
 	    if (do_autocmd_event(event_name2nr(arg, &arg), pat,
 					nested,	cmd, forceit, group) == FAIL)
 		break;
@@ -8526,7 +8526,7 @@ au_get_grouparg(char_u **argp)
     char_u	*arg = *argp;
     int		group = AUGROUP_ALL;
 
-    for (p = arg; *p && !vim_iswhite(*p) && *p != '|'; ++p)
+    for (p = arg; *p && !VIM_ISWHITE(*p) && *p != '|'; ++p)
 	;
     if (p > arg)
     {
@@ -8838,7 +8838,7 @@ do_doautocmd(
     /*
      * Loop over the events.
      */
-    while (*arg && !vim_iswhite(*arg))
+    while (*arg && !VIM_ISWHITE(*arg))
 	if (apply_autocmds_group(event_name2nr(arg, &arg),
 				      fname, NULL, TRUE, group, curbuf, NULL))
 	    nothing_done = FALSE;
@@ -9954,14 +9954,14 @@ set_context_in_autocmd(
     if (group == AUGROUP_ERROR)
 	return NULL;
     /* If there only is a group name that's what we expand. */
-    if (*arg == NUL && group != AUGROUP_ALL && !vim_iswhite(arg[-1]))
+    if (*arg == NUL && group != AUGROUP_ALL && !VIM_ISWHITE(arg[-1]))
     {
 	arg = p;
 	group = AUGROUP_ALL;
     }
 
     /* skip over event name */
-    for (p = arg; *p != NUL && !vim_iswhite(*p); ++p)
+    for (p = arg; *p != NUL && !VIM_ISWHITE(*p); ++p)
 	if (*p == ',')
 	    arg = p + 1;
     if (*p == NUL)
@@ -9975,7 +9975,7 @@ set_context_in_autocmd(
 
     /* skip over pattern */
     arg = skipwhite(p);
-    while (*arg && (!vim_iswhite(*arg) || arg[-1] == '\\'))
+    while (*arg && (!VIM_ISWHITE(*arg) || arg[-1] == '\\'))
 	arg++;
     if (*arg)
 	return arg;			    /* expand (next) command */
diff --git a/src/fold.c b/src/fold.c
index d75e937003..826ad5c8dc 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -1039,7 +1039,7 @@ foldAdjustVisual(void)
     if (!VIsual_active || !hasAnyFolding(curwin))
 	return;
 
-    if (ltoreq(VIsual, curwin->w_cursor))
+    if (LTOREQ_POS(VIsual, curwin->w_cursor))
     {
 	start = &VIsual;
 	end = &curwin->w_cursor;
@@ -1760,6 +1760,7 @@ foldAddMarker(linenr_T lnum, char_u *marker, int markerlen)
     int		line_len;
     char_u	*newline;
     char_u	*p = (char_u *)strstr((char *)curbuf->b_p_cms, "%s");
+    int		line_is_comment = FALSE;
 
     /* Allocate a new line: old-line + 'cms'-start + marker + 'cms'-end */
     line = ml_get(lnum);
@@ -1767,11 +1768,16 @@ foldAddMarker(linenr_T lnum, char_u *marker, int markerlen)
 
     if (u_save(lnum - 1, lnum + 1) == OK)
     {
+#if defined(FEAT_COMMENTS)
+	/* Check if the line ends with an unclosed comment */
+	(void)skip_comment(line, FALSE, FALSE, &line_is_comment);
+#endif
 	newline = alloc((unsigned)(line_len + markerlen + STRLEN(cms) + 1));
 	if (newline == NULL)
 	    return;
 	STRCPY(newline, line);
-	if (p == NULL)
+	/* Append the marker to the end of the line */
+	if (p == NULL || line_is_comment)
 	    vim_strncpy(newline + line_len, marker, markerlen);
 	else
 	{
@@ -1970,7 +1976,7 @@ get_foldtext(
 	long count = (long)(lnume - lnum + 1);
 
 	vim_snprintf((char *)buf, FOLD_TEXT_LEN,
-		     ngettext("+--%3ld line folded ",
+		     NGETTEXT("+--%3ld line folded ",
 					       "+--%3ld lines folded ", count),
 		     count);
 	text = buf;
@@ -1998,7 +2004,7 @@ foldtext_cleanup(char_u *str)
     /* Ignore leading and trailing white space in 'commentstring'. */
     cms_start = skipwhite(curbuf->b_p_cms);
     cms_slen = (int)STRLEN(cms_start);
-    while (cms_slen > 0 && vim_iswhite(cms_start[cms_slen - 1]))
+    while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1]))
 	--cms_slen;
 
     /* locate "%s" in 'commentstring', use the part before and after it. */
@@ -2009,7 +2015,7 @@ foldtext_cleanup(char_u *str)
 	cms_slen = (int)(cms_end - cms_start);
 
 	/* exclude white space before "%s" */
-	while (cms_slen > 0 && vim_iswhite(cms_start[cms_slen - 1]))
+	while (cms_slen > 0 && VIM_ISWHITE(cms_start[cms_slen - 1]))
 	    --cms_slen;
 
 	/* skip "%s" and white space after it */
@@ -2033,7 +2039,7 @@ foldtext_cleanup(char_u *str)
 
 	    /* May remove 'commentstring' start.  Useful when it's a double
 	     * quote and we already removed a double quote. */
-	    for (p = s; p > str && vim_iswhite(p[-1]); --p)
+	    for (p = s; p > str && VIM_ISWHITE(p[-1]); --p)
 		;
 	    if (p >= str + cms_slen
 			   && STRNCMP(p - cms_slen, cms_start, cms_slen) == 0)
@@ -2058,13 +2064,13 @@ foldtext_cleanup(char_u *str)
 	}
 	if (len != 0)
 	{
-	    while (vim_iswhite(s[len]))
+	    while (VIM_ISWHITE(s[len]))
 		++len;
 	    STRMOVE(s, s + len);
 	}
 	else
 	{
-	    mb_ptr_adv(s);
+	    MB_PTR_ADV(s);
 	}
     }
 }
@@ -3249,7 +3255,7 @@ foldlevelMarker(fline_T *flp)
 		--flp->lvl_next;
 	}
 	else
-	    mb_ptr_adv(s);
+	    MB_PTR_ADV(s);
     }
 
     /* The level can't go negative, must be missing a start marker. */
diff --git a/src/getchar.c b/src/getchar.c
index e6c7268aff..ec207891df 100644
--- a/src/getchar.c
+++ b/src/getchar.c
@@ -2651,7 +2651,7 @@ vgetorpeek(int advance)
 				ptr = ml_get_curline();
 				while (col < curwin->w_cursor.col)
 				{
-				    if (!vim_iswhite(ptr[col]))
+				    if (!VIM_ISWHITE(ptr[col]))
 					curwin->w_wcol = vcol;
 				    vcol += lbr_chartabsize(ptr, ptr + col,
 							       (colnr_T)vcol);
@@ -3324,7 +3324,7 @@ do_map(
      */
     p = keys;
     do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
-    while (*p && (maptype == 1 || !vim_iswhite(*p)))
+    while (*p && (maptype == 1 || !VIM_ISWHITE(*p)))
     {
 	if ((p[0] == Ctrl_V || (do_backslash && p[0] == '\\')) &&
 								  p[1] != NUL)
@@ -3429,7 +3429,7 @@ do_map(
 			}
 	    /* An abbreviation cannot contain white space. */
 	    for (n = 0; n < len; ++n)
-		if (vim_iswhite(keys[n]))
+		if (VIM_ISWHITE(keys[n]))
 		{
 		    retval = 1;
 		    goto theend;
@@ -5043,7 +5043,7 @@ put_escstr(FILE *fd, char_u *strstart, int what)
 	 * interpreted as the start of a special key name.
 	 * A space in the lhs of a :map needs a CTRL-V.
 	 */
-	if (what == 2 && (vim_iswhite(c) || c == '"' || c == '\\'))
+	if (what == 2 && (VIM_ISWHITE(c) || c == '"' || c == '\\'))
 	{
 	    if (putc('\\', fd) < 0)
 		return FAIL;
diff --git a/src/gui.c b/src/gui.c
index e36927e488..250ad3bde0 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -4525,7 +4525,7 @@ gui_do_scroll(void)
 	pum_redraw();
 #endif
 
-    return (wp == curwin && !equalpos(curwin->w_cursor, old_cursor));
+    return (wp == curwin && !EQUAL_POS(curwin->w_cursor, old_cursor));
 }
 
 
@@ -4549,7 +4549,7 @@ scroll_line_len(linenr_T lnum)
 	for (;;)
 	{
 	    w = chartabsize(p, col);
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 	    if (*p == NUL)		/* don't count the last character */
 		break;
 	    col += w;
@@ -5027,7 +5027,7 @@ ex_gui(exarg_T *eap)
      */
     if (arg[0] == '-'
 	    && (arg[1] == 'f' || arg[1] == 'b')
-	    && (arg[2] == NUL || vim_iswhite(arg[2])))
+	    && (arg[2] == NUL || VIM_ISWHITE(arg[2])))
     {
 	gui.dofork = (arg[1] == 'b');
 	eap->arg = skipwhite(eap->arg + 2);
@@ -5179,7 +5179,7 @@ gui_update_screen(void)
 		curwin->w_p_cole > 0
 # endif
 		)
-		     && !equalpos(last_cursormoved, curwin->w_cursor))
+		     && !EQUAL_POS(last_cursormoved, curwin->w_cursor))
     {
 # ifdef FEAT_AUTOCMD
 	if (has_cursormoved())
diff --git a/src/gui_beval.c b/src/gui_beval.c
index f108105f7f..d71a716a10 100644
--- a/src/gui_beval.c
+++ b/src/gui_beval.c
@@ -84,7 +84,7 @@ general_beval_cb(BalloonEval *beval, int state UNUSED)
 	    result = eval_to_string(bexpr, NULL, TRUE);
 
 	    /* Remove one trailing newline, it is added when the result was a
-	     * list and it's hardly every useful.  If the user really wants a
+	     * list and it's hardly ever useful.  If the user really wants a
 	     * trailing newline he can add two and one remains. */
 	    if (result != NULL)
 	    {
@@ -366,7 +366,7 @@ get_beval_info(
 
 		    if (VIsual_active)
 		    {
-			if (lt(VIsual, curwin->w_cursor))
+			if (LT_POS(VIsual, curwin->w_cursor))
 			{
 			    spos = &VIsual;
 			    epos = &curwin->w_cursor;
diff --git a/src/gui_gtk.c b/src/gui_gtk.c
index c015d7ee66..c175dd31e9 100644
--- a/src/gui_gtk.c
+++ b/src/gui_gtk.c
@@ -51,9 +51,6 @@
 # ifdef _
 #  undef _
 # endif
-# ifdef ngettext
-#  undef ngettext
-# endif
 # ifdef N_
 #  undef N_
 # endif
@@ -1522,7 +1519,7 @@ split_button_string(char_u *button_string, int *n_buttons)
 	    else if (*p == DLG_HOTKEY_CHAR)
 		*p++ = '_';
 	    else
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 	}
 	array[count] = NULL; /* currently not relied upon, but doesn't hurt */
     }
diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index 4bcdc50d19..c00b3d6c49 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -35,9 +35,6 @@
 # ifdef _
 #  undef _
 # endif
-# ifdef ngettext
-#  undef ngettext
-# endif
 # ifdef N_
 #  undef N_
 # endif
diff --git a/src/gui_w32.c b/src/gui_w32.c
index cd9f31e215..fc566abee9 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -7112,7 +7112,7 @@ gui_mch_dialog(
 #else
 	    l = 1;
 #endif
-	    if (l == 1 && vim_iswhite(*pend)
+	    if (l == 1 && VIM_ISWHITE(*pend)
 					&& textWidth > maxDialogWidth * 3 / 4)
 		last_white = pend;
 	    textWidth += GetTextWidthEnc(hdc, pend, l);
@@ -8581,6 +8581,7 @@ gui_mch_enable_beval_area(BalloonEval *beval)
 gui_mch_post_balloon(BalloonEval *beval, char_u *mesg)
 {
     POINT   pt;
+
     // TRACE0("gui_mch_post_balloon {{{");
     if (beval->showState == ShS_SHOWING)
 	return;
@@ -8588,8 +8589,8 @@ gui_mch_post_balloon(BalloonEval *beval, char_u *mesg)
     ScreenToClient(s_textArea, &pt);
 
     if (abs(beval->x - pt.x) < 3 && abs(beval->y - pt.y) < 3)
-	/* cursor is still here */
     {
+	/* cursor is still here */
 	gui_mch_disable_beval_area(cur_beval);
 	beval->showState = ShS_SHOWING;
 	make_tooltip(beval, (char *)mesg, pt);
diff --git a/src/gui_x11.c b/src/gui_x11.c
index 2cc0eba85c..2226e89547 100644
--- a/src/gui_x11.c
+++ b/src/gui_x11.c
@@ -1992,14 +1992,40 @@ gui_mch_get_font(char_u *name, int giveErrorIfMissing)
 #if defined(FEAT_EVAL) || defined(PROTO)
 /*
  * Return the name of font "font" in allocated memory.
- * Don't know how to get the actual name, thus use the provided name.
  */
     char_u *
-gui_mch_get_fontname(GuiFont font UNUSED, char_u *name)
+gui_mch_get_fontname(GuiFont font, char_u *name)
 {
-    if (name == NULL)
-	return NULL;
-    return vim_strsave(name);
+    char_u *ret = NULL;
+
+    if (name != NULL && font == NULL)
+    {
+	/* In this case, there's no way other than doing this. */
+	ret = vim_strsave(name);
+    }
+    else if (font != NULL)
+    {
+	/* In this case, try to retrieve the XLFD corresponding to 'font'->fid;
+	 * if failed, use 'name' unless it's NULL. */
+	unsigned long value = 0L;
+
+	if (XGetFontProperty(font, XA_FONT, &value))
+	{
+	    char *xa_font_name = NULL;
+
+	    xa_font_name = XGetAtomName(gui.dpy, value);
+	    if (xa_font_name != NULL)
+	    {
+		ret = vim_strsave((char_u *)xa_font_name);
+		XFree(xa_font_name);
+	    }
+	    else if (name != NULL)
+		ret = vim_strsave(name);
+	}
+	else if (name != NULL)
+	    ret = vim_strsave(name);
+    }
+    return ret;
 }
 #endif
 
diff --git a/src/if_cscope.c b/src/if_cscope.c
index 5b384982e3..7a533230f3 100644
--- a/src/if_cscope.c
+++ b/src/if_cscope.c
@@ -781,7 +781,7 @@ cs_create_cmd(char *csoption, char *pattern)
      * they may want to use the leading white space. */
     pat = pattern;
     if (search != 4 && search != 6)
-	while vim_iswhite(*pat)
+	while VIM_ISWHITE(*pat)
 	    ++pat;
 
     if ((cmd = (char *)alloc((unsigned)(strlen(pat) + 2))) == NULL)
diff --git a/src/if_perl.xs b/src/if_perl.xs
index ecb9726e3b..076c5c6019 100644
--- a/src/if_perl.xs
+++ b/src/if_perl.xs
@@ -1288,7 +1288,7 @@ ex_perldo(exarg_T *eap)
     linenr_T	i;
     buf_T	*was_curbuf = curbuf;
 
-    if (bufempty())
+    if (BUFEMPTY())
 	return;
 
     if (perl_interp == NULL)
diff --git a/src/macros.h b/src/macros.h
index faa8ccc9c5..8ebc8ceb81 100644
--- a/src/macros.h
+++ b/src/macros.h
@@ -8,49 +8,58 @@
 
 /*
  * macros.h: macro definitions for often used code
+ *
+ * Macros should be ALL_CAPS.  An exception is for where a function is
+ * replaced and an argument is not used more than once.
  */
 
 /*
- * pchar(lp, c) - put character 'c' at position 'lp'
+ * PCHAR(lp, c) - put character 'c' at position 'lp'
  */
-#define pchar(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
+#define PCHAR(lp, c) (*(ml_get_buf(curbuf, (lp).lnum, TRUE) + (lp).col) = (c))
 
 /*
  * Position comparisons
  */
 #ifdef FEAT_VIRTUALEDIT
-# define lt(a, b) (((a).lnum != (b).lnum) \
+# define LT_POS(a, b) (((a).lnum != (b).lnum) \
 		   ? (a).lnum < (b).lnum \
 		   : (a).col != (b).col \
 		       ? (a).col < (b).col \
 		       : (a).coladd < (b).coladd)
-# define ltp(a, b) (((a)->lnum != (b)->lnum) \
+# define LT_POSP(a, b) (((a)->lnum != (b)->lnum) \
 		   ? (a)->lnum < (b)->lnum \
 		   : (a)->col != (b)->col \
 		       ? (a)->col < (b)->col \
 		       : (a)->coladd < (b)->coladd)
-# define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
-# define clearpos(a) {(a)->lnum = 0; (a)->col = 0; (a)->coladd = 0;}
+# define EQUAL_POS(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col) && ((a).coladd == (b).coladd))
+# define CLEAR_POS(a) {(a)->lnum = 0; (a)->col = 0; (a)->coladd = 0;}
 #else
-# define lt(a, b) (((a).lnum != (b).lnum) \
+# define LT_POS(a, b) (((a).lnum != (b).lnum) \
 		   ? ((a).lnum < (b).lnum) : ((a).col < (b).col))
-# define ltp(a, b) (((a)->lnum != (b)->lnum) \
+# define LT_POSP(a, b) (((a)->lnum != (b)->lnum) \
 		   ? ((a)->lnum < (b)->lnum) : ((a)->col < (b)->col))
-# define equalpos(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
-# define clearpos(a) {(a)->lnum = 0; (a)->col = 0;}
+# define EQUAL_POS(a, b) (((a).lnum == (b).lnum) && ((a).col == (b).col))
+# define CLEAR_POS(a) {(a)->lnum = 0; (a)->col = 0;}
 #endif
 
-#define ltoreq(a, b) (lt(a, b) || equalpos(a, b))
+#define LTOREQ_POS(a, b) (LT_POS(a, b) || EQUAL_POS(a, b))
 
 /*
- * lineempty() - return TRUE if the line is empty
+ * VIM_ISWHITE() is used for "^" and the like. It differs from isspace()
+ * because it doesn't include <CR> and <LF> and the like.
  */
-#define lineempty(p) (*ml_get(p) == NUL)
+#define VIM_ISWHITE(x)	((x) == ' ' || (x) == '\t')
 
 /*
- * bufempty() - return TRUE if the current buffer is empty
+ * LINEEMPTY() - return TRUE if the line is empty
  */
-#define bufempty() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
+#define LINEEMPTY(p) (*ml_get(p) == NUL)
+
+/*
+ * BUFEMPTY() - return TRUE if the current buffer is empty
+ */
+#define BUFEMPTY() (curbuf->b_ml.ml_line_count == 1 && *ml_get((linenr_T)1) == NUL)
 
 /*
  * toupper() and tolower() that use the current locale.
@@ -161,10 +170,10 @@
 #endif
 
 /*
- * vim_isbreak() is used very often if 'linebreak' is set, use a macro to make
- * it work fast.
+ * VIM_ISBREAK() is used very often if 'linebreak' is set, use a macro to make
+ * it work fast.  Only works for single byte characters!
  */
-#define vim_isbreak(c) (breakat_flags[(char_u)(c)])
+#define VIM_ISBREAK(c) ((c) < 256 && breakat_flags[(char_u)(c)])
 
 /*
  * On VMS file names are different and require a translation.
@@ -190,9 +199,7 @@
 #  define mch_stat(n, p)	vim_stat((n), (p))
 # else
 #  ifdef STAT_IGNORES_SLASH
-    /* On Solaris stat() accepts "file/" as if it was "file".  Return -1 if
-     * the name ends in "/" and it's not a directory. */
-#   define mch_stat(n, p)	(illegal_slash(n) ? -1 : stat((n), (p)))
+#   define mch_stat(n, p)	vim_stat((n), (p))
 #  else
 #   define mch_stat(n, p)	stat((n), (p))
 #  endif
@@ -258,22 +265,22 @@
 #endif
 
 /*
- * mb_ptr_adv(): advance a pointer to the next character, taking care of
+ * MB_PTR_ADV(): advance a pointer to the next character, taking care of
  * multi-byte characters if needed.
- * mb_ptr_back(): backup a pointer to the previous character, taking care of
+ * MB_PTR_BACK(): backup a pointer to the previous character, taking care of
  * multi-byte characters if needed.
  * MB_COPY_CHAR(f, t): copy one char from "f" to "t" and advance the pointers.
  * PTR2CHAR(): get character from pointer.
  */
 #ifdef FEAT_MBYTE
 /* Get the length of the character p points to */
-# define MB_PTR2LEN(p)		(has_mbyte ? (*mb_ptr2len)(p) : 1)
+# define MB_PTR2LEN(p)	    (has_mbyte ? (*mb_ptr2len)(p) : 1)
 /* Advance multi-byte pointer, skip over composing chars. */
-# define mb_ptr_adv(p)	    p += has_mbyte ? (*mb_ptr2len)(p) : 1
+# define MB_PTR_ADV(p)	    p += has_mbyte ? (*mb_ptr2len)(p) : 1
 /* Advance multi-byte pointer, do not skip over composing chars. */
-# define mb_cptr_adv(p)	    p += enc_utf8 ? utf_ptr2len(p) : has_mbyte ? (*mb_ptr2len)(p) : 1
+# define MB_CPTR_ADV(p)	    p += enc_utf8 ? utf_ptr2len(p) : has_mbyte ? (*mb_ptr2len)(p) : 1
 /* Backup multi-byte pointer. Only use with "p" > "s" ! */
-# define mb_ptr_back(s, p)  p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1
+# define MB_PTR_BACK(s, p)  p -= has_mbyte ? ((*mb_head_off)(s, p - 1) + 1) : 1
 /* get length of multi-byte char, not including composing chars */
 # define MB_CPTR2LEN(p)	    (enc_utf8 ? utf_ptr2len(p) : (*mb_ptr2len)(p))
 
@@ -284,9 +291,9 @@
 #else
 # define MB_PTR2LEN(p)		1
 # define MB_CPTR2LEN(p)		1
-# define mb_ptr_adv(p)		++p
-# define mb_cptr_adv(p)		++p
-# define mb_ptr_back(s, p)	--p
+# define MB_PTR_ADV(p)		++p
+# define MB_CPTR_ADV(p)		++p
+# define MB_PTR_BACK(s, p)	--p
 # define MB_COPY_CHAR(f, t)	*t++ = *f++
 # define MB_CHARLEN(p)		STRLEN(p)
 # define MB_CHAR2LEN(c)		1
diff --git a/src/main.c b/src/main.c
index 3ba5249b38..382fc24a49 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1213,7 +1213,7 @@ main_loop(
 # endif
 			)
 # ifdef FEAT_AUTOCMD
-		 && !equalpos(last_cursormoved, curwin->w_cursor)
+		 && !EQUAL_POS(last_cursormoved, curwin->w_cursor)
 # endif
 		 )
 	    {
@@ -3623,16 +3623,27 @@ set_progpath(char_u *argv0)
 {
     char_u *val = argv0;
 
+# ifdef HAVE_PROC_SELF_EXE
+    char    buf[PATH_MAX + 1];
+    ssize_t len;
+
+    len = readlink("/proc/self/exe", buf, PATH_MAX);
+    if (len > 0)
+    {
+	buf[len] = NUL;
+	val = (char_u *)buf;
+    }
+# else
     /* A relative path containing a "/" will become invalid when using ":cd",
      * turn it into a full path.
      * On MS-Windows "vim" should be expanded to "vim.exe", thus always do
      * this. */
-# ifdef WIN32
+#  ifdef WIN32
     char_u *path = NULL;
 
     if (mch_can_exe(argv0, &path, FALSE) && path != NULL)
 	val = path;
-# else
+#  else
     char_u buf[MAXPATHL];
 
     if (!mch_isFullName(argv0))
@@ -3641,8 +3652,11 @@ set_progpath(char_u *argv0)
 			   && vim_FullName(argv0, buf, MAXPATHL, TRUE) != FAIL)
 	    val = buf;
     }
+#  endif
 # endif
+
     set_vim_var_string(VV_PROGPATH, val, -1);
+
 # ifdef WIN32
     vim_free(path);
 # endif
diff --git a/src/mark.c b/src/mark.c
index 59ac01dc51..194125eb00 100644
--- a/src/mark.c
+++ b/src/mark.c
@@ -206,7 +206,7 @@ setpcmark(void)
 checkpcmark(void)
 {
     if (curwin->w_prev_pcmark.lnum != 0
-	    && (equalpos(curwin->w_pcmark, curwin->w_cursor)
+	    && (EQUAL_POS(curwin->w_pcmark, curwin->w_cursor)
 		|| curwin->w_pcmark.lnum == 0))
     {
 	curwin->w_pcmark = curwin->w_prev_pcmark;
@@ -401,7 +401,7 @@ getmark_buf_fnum(
     {
 	startp = &buf->b_visual.vi_start;
 	endp = &buf->b_visual.vi_end;
-	if (((c == '<') == lt(*startp, *endp) || endp->lnum == 0)
+	if (((c == '<') == LT_POS(*startp, *endp) || endp->lnum == 0)
 							  && startp->lnum != 0)
 	    posp = startp;
 	else
@@ -497,14 +497,14 @@ getnextmark(
 	{
 	    if (dir == FORWARD)
 	    {
-		if ((result == NULL || lt(curbuf->b_namedm[i], *result))
-			&& lt(pos, curbuf->b_namedm[i]))
+		if ((result == NULL || LT_POS(curbuf->b_namedm[i], *result))
+			&& LT_POS(pos, curbuf->b_namedm[i]))
 		    result = &curbuf->b_namedm[i];
 	    }
 	    else
 	    {
-		if ((result == NULL || lt(*result, curbuf->b_namedm[i]))
-			&& lt(curbuf->b_namedm[i], pos))
+		if ((result == NULL || LT_POS(*result, curbuf->b_namedm[i]))
+			&& LT_POS(curbuf->b_namedm[i], pos))
 		    result = &curbuf->b_namedm[i];
 	    }
 	}
@@ -695,7 +695,7 @@ mark_line(pos_T *mp, int lead_len)
 	return NULL;
     /* Truncate the line to fit it in the window */
     len = 0;
-    for (p = s; *p != NUL; mb_ptr_adv(p))
+    for (p = s; *p != NUL; MB_PTR_ADV(p))
     {
 	len += ptr2cells(p);
 	if (len >= Columns - lead_len)
@@ -1063,7 +1063,7 @@ mark_adjust(
 	one_adjust(&(curbuf->b_last_change.lnum));
 
 	/* last cursor position, if it was set */
-	if (!equalpos(curbuf->b_last_cursor, initpos))
+	if (!EQUAL_POS(curbuf->b_last_cursor, initpos))
 	    one_adjust(&(curbuf->b_last_cursor.lnum));
 
 
@@ -1838,7 +1838,8 @@ write_buffer_marks(buf_T *buf, FILE *fp_out)
     for (i = 0; i < buf->b_changelistlen; ++i)
     {
 	/* skip duplicates */
-	if (i == 0 || !equalpos(buf->b_changelist[i - 1], buf->b_changelist[i]))
+	if (i == 0 || !EQUAL_POS(buf->b_changelist[i - 1],
+							 buf->b_changelist[i]))
 	    write_one_mark(fp_out, '+', &buf->b_changelist[i]);
     }
 #endif
diff --git a/src/mbyte.c b/src/mbyte.c
index 8eab06ae15..c994b16c21 100644
--- a/src/mbyte.c
+++ b/src/mbyte.c
@@ -886,7 +886,7 @@ mb_get_class_buf(char_u *p, buf_T *buf)
 {
     if (MB_BYTE2LEN(p[0]) == 1)
     {
-	if (p[0] == NUL || vim_iswhite(p[0]))
+	if (p[0] == NUL || VIM_ISWHITE(p[0]))
 	    return 0;
 	if (vim_iswordc_buf(p[0], buf))
 	    return 2;
@@ -4047,7 +4047,7 @@ mb_prevptr(
     char_u *p)
 {
     if (p > line)
-	mb_ptr_back(line, p);
+	MB_PTR_BACK(line, p);
     return p;
 }
 
@@ -5780,7 +5780,6 @@ static int xim_real_init(Window x11_window, Display *x11_display);
 
 
 #ifdef USE_X11R6_XIM
-static void xim_instantiate_cb(Display *display, XPointer client_data, XPointer	call_data);
 static void xim_destroy_cb(XIM im, XPointer client_data, XPointer call_data);
 
     static void
diff --git a/src/memline.c b/src/memline.c
index f9852e55bb..723bcd4bc5 100644
--- a/src/memline.c
+++ b/src/memline.c
@@ -2028,7 +2028,7 @@ make_percent_swname(char_u *dir, char_u *name)
 	if (s != NULL)
 	{
 	    STRCPY(s, f);
-	    for (d = s; *d != NUL; mb_ptr_adv(d))
+	    for (d = s; *d != NUL; MB_PTR_ADV(d))
 		if (vim_ispathsep(*d))
 		    *d = '%';
 	    d = concat_fnames(dir, s, TRUE);
@@ -4015,7 +4015,7 @@ get_file_in_dir(
 
 #ifdef WIN3264
     if (retval != NULL)
-	for (t = gettail(retval); *t != NUL; mb_ptr_adv(t))
+	for (t = gettail(retval); *t != NUL; MB_PTR_ADV(t))
 	    if (*t == ':')
 		*t = '%';
 #endif
@@ -4154,7 +4154,7 @@ findswapname(
 	if (buf_fname == NULL)
 	    buf_fname = buf->b_fname;
 	else
-	    for (t = gettail(buf_fname); *t != NUL; mb_ptr_adv(t))
+	    for (t = gettail(buf_fname); *t != NUL; MB_PTR_ADV(t))
 		if (*t == ':')
 		    *t = '%';
     }
diff --git a/src/menu.c b/src/menu.c
index 6b053fc5f8..4a29ebe59d 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -152,7 +152,7 @@ ex_menu(
 	{
 	    if (*arg == '\\')
 		STRMOVE(arg, arg + 1);
-	    mb_ptr_adv(arg);
+	    MB_PTR_ADV(arg);
 	}
 	if (*arg != NUL)
 	{
@@ -167,9 +167,9 @@ ex_menu(
     for (p = arg; *p; ++p)
 	if (!VIM_ISDIGIT(*p) && *p != '.')
 	    break;
-    if (vim_iswhite(*p))
+    if (VIM_ISWHITE(*p))
     {
-	for (i = 0; i < MENUDEPTH && !vim_iswhite(*arg); ++i)
+	for (i = 0; i < MENUDEPTH && !VIM_ISWHITE(*arg); ++i)
 	{
 	    pri_tab[i] = getdigits(&arg);
 	    if (pri_tab[i] == 0)
@@ -193,12 +193,12 @@ ex_menu(
     /*
      * Check for "disable" or "enable" argument.
      */
-    if (STRNCMP(arg, "enable", 6) == 0 && vim_iswhite(arg[6]))
+    if (STRNCMP(arg, "enable", 6) == 0 && VIM_ISWHITE(arg[6]))
     {
 	enable = TRUE;
 	arg = skipwhite(arg + 6);
     }
-    else if (STRNCMP(arg, "disable", 7) == 0 && vim_iswhite(arg[7]))
+    else if (STRNCMP(arg, "disable", 7) == 0 && VIM_ISWHITE(arg[7]))
     {
 	enable = FALSE;
 	arg = skipwhite(arg + 7);
@@ -662,7 +662,7 @@ add_menu_path(
 
 		    STRCPY(tearpath, menu_path);
 		    idx = (int)(next_name - path_name - 1);
-		    for (s = tearpath; *s && s < tearpath + idx; mb_ptr_adv(s))
+		    for (s = tearpath; *s && s < tearpath + idx; MB_PTR_ADV(s))
 		    {
 			if ((*s == '\\' || *s == Ctrl_V) && s[1])
 			{
@@ -1225,24 +1225,24 @@ set_context_in_menu_cmd(
 	if (!VIM_ISDIGIT(*p) && *p != '.')
 	    break;
 
-    if (!vim_iswhite(*p))
+    if (!VIM_ISWHITE(*p))
     {
 	if (STRNCMP(arg, "enable", 6) == 0
-		&& (arg[6] == NUL ||  vim_iswhite(arg[6])))
+		&& (arg[6] == NUL ||  VIM_ISWHITE(arg[6])))
 	    p = arg + 6;
 	else if (STRNCMP(arg, "disable", 7) == 0
-		&& (arg[7] == NUL || vim_iswhite(arg[7])))
+		&& (arg[7] == NUL || VIM_ISWHITE(arg[7])))
 	    p = arg + 7;
 	else
 	    p = arg;
     }
 
-    while (*p != NUL && vim_iswhite(*p))
+    while (*p != NUL && VIM_ISWHITE(*p))
 	++p;
 
     arg = after_dot = p;
 
-    for (; *p && !vim_iswhite(*p); ++p)
+    for (; *p && !VIM_ISWHITE(*p); ++p)
     {
 	if ((*p == '\\' || *p == Ctrl_V) && p[1] != NUL)
 	    p++;
@@ -1253,7 +1253,7 @@ set_context_in_menu_cmd(
     /* ":tearoff" and ":popup" only use menus, not entries */
     expand_menus = !((*cmd == 't' && cmd[1] == 'e') || *cmd == 'p');
     expand_emenu = (*cmd == 'e');
-    if (expand_menus && vim_iswhite(*p))
+    if (expand_menus && VIM_ISWHITE(*p))
 	return NULL;	/* TODO: check for next command? */
     if (*p == NUL)		/* Complete the menu name */
     {
@@ -1478,7 +1478,7 @@ menu_name_skip(char_u *name)
 {
     char_u  *p;
 
-    for (p = name; *p && *p != '.'; mb_ptr_adv(p))
+    for (p = name; *p && *p != '.'; MB_PTR_ADV(p))
     {
 	if (*p == '\\' || *p == Ctrl_V)
 	{
@@ -2456,7 +2456,7 @@ ex_menutranslate(exarg_T *eap UNUSED)
     static char_u *
 menu_skip_part(char_u *p)
 {
-    while (*p != NUL && *p != '.' && !vim_iswhite(*p))
+    while (*p != NUL && *p != '.' && !VIM_ISWHITE(*p))
     {
 	if ((*p == '\\' || *p == Ctrl_V) && p[1] != NUL)
 	    ++p;
@@ -2509,7 +2509,7 @@ menu_unescape_name(char_u *name)
 {
     char_u  *p;
 
-    for (p = name; *p && *p != '.'; mb_ptr_adv(p))
+    for (p = name; *p && *p != '.'; MB_PTR_ADV(p))
 	if (*p == '\\')
 	    STRMOVE(p, p + 1);
 }
@@ -2524,7 +2524,7 @@ menu_translate_tab_and_shift(char_u *arg_start)
 {
     char_u	*arg = arg_start;
 
-    while (*arg && !vim_iswhite(*arg))
+    while (*arg && !VIM_ISWHITE(*arg))
     {
 	if ((*arg == '\\' || *arg == Ctrl_V) && arg[1] != NUL)
 	    arg++;
diff --git a/src/message.c b/src/message.c
index 1468f53b57..a1600013bd 100644
--- a/src/message.c
+++ b/src/message.c
@@ -1793,7 +1793,7 @@ msg_prt_line(char_u *s, int list)
     if (list && lcs_trail)
     {
 	trail = s + STRLEN(s);
-	while (trail > s && vim_iswhite(trail[-1]))
+	while (trail > s && VIM_ISWHITE(trail[-1]))
 	    --trail;
     }
 
@@ -3750,7 +3750,7 @@ msg_show_console_dialog(
 	    }
 
 	    /* advance to the next character */
-	    mb_ptr_adv(r);
+	    MB_PTR_ADV(r);
 	}
 
 	if (copy)
diff --git a/src/misc1.c b/src/misc1.c
index a454338491..544058bc9b 100644
--- a/src/misc1.c
+++ b/src/misc1.c
@@ -139,7 +139,7 @@ set_indent(
 	    ind_done = 0;
 
 	    /* count as many characters as we can use */
-	    while (todo > 0 && vim_iswhite(*p))
+	    while (todo > 0 && VIM_ISWHITE(*p))
 	    {
 		if (*p == TAB)
 		{
@@ -202,7 +202,7 @@ set_indent(
     }
 
     /* Return if the indent is OK already. */
-    if (!doit && !vim_iswhite(*p) && !(flags & SIN_INSERT))
+    if (!doit && !VIM_ISWHITE(*p) && !(flags & SIN_INSERT))
 	return FALSE;
 
     /* Allocate memory for the new line. */
@@ -234,7 +234,7 @@ set_indent(
 
 	/* Skip over any additional white space (useful when newindent is less
 	 * than old) */
-	while (vim_iswhite(*p))
+	while (VIM_ISWHITE(*p))
 	    ++p;
 
     }
@@ -258,7 +258,7 @@ set_indent(
 	    p = oldline;
 	    ind_done = 0;
 
-	    while (todo > 0 && vim_iswhite(*p))
+	    while (todo > 0 && VIM_ISWHITE(*p))
 	    {
 		if (*p == TAB)
 		{
@@ -357,7 +357,7 @@ copy_indent(int size, char_u *src)
 	s = src;
 
 	/* Count/copy the usable portion of the source line */
-	while (todo > 0 && vim_iswhite(*s))
+	while (todo > 0 && VIM_ISWHITE(*s))
 	{
 	    if (*s == TAB)
 	    {
@@ -820,7 +820,7 @@ open_line(
 		{
 		    /* Find last non-blank in line */
 		    p = ptr + STRLEN(ptr) - 1;
-		    while (p > ptr && vim_iswhite(*p))
+		    while (p > ptr && VIM_ISWHITE(*p))
 			--p;
 		    last_char = *p;
 
@@ -831,7 +831,7 @@ open_line(
 		    {
 			if (p > ptr)
 			    --p;
-			while (p > ptr && vim_iswhite(*p))
+			while (p > ptr && VIM_ISWHITE(*p))
 			    --p;
 		    }
 		    /*
@@ -1020,7 +1020,7 @@ open_line(
 		     * comment leader, then put a space after the middle
 		     * comment leader on the next line.
 		     */
-		    if (!vim_iswhite(saved_line[lead_len - 1])
+		    if (!VIM_ISWHITE(saved_line[lead_len - 1])
 			    && ((p_extra != NULL
 				    && (int)curwin->w_cursor.col == lead_len)
 				|| (p_extra == NULL
@@ -1124,7 +1124,7 @@ open_line(
 		    {
 			/* find last non-white in the leader to line up with */
 			for (p = leader + lead_len - 1; p > leader
-						      && vim_iswhite(*p); --p)
+						      && VIM_ISWHITE(*p); --p)
 			    ;
 			++p;
 
@@ -1140,7 +1140,7 @@ open_line(
 
 			    while (old_size < repl_size && p > leader)
 			    {
-				mb_ptr_back(leader, p);
+				MB_PTR_BACK(leader, p);
 				old_size += ptr2cells(p);
 			    }
 			    l = lead_repl_len - (int)(endp - p);
@@ -1180,7 +1180,7 @@ open_line(
 			    }
 			    else
 #endif
-			    if (!vim_iswhite(*p))
+			    if (!VIM_ISWHITE(*p))
 				*p = ' ';
 			}
 		    }
@@ -1217,7 +1217,7 @@ open_line(
 			 * leader by spaces.  Keep Tabs, the indent must
 			 * remain the same. */
 			for (p += lead_repl_len; p < leader + lead_len; ++p)
-			    if (!vim_iswhite(*p))
+			    if (!VIM_ISWHITE(*p))
 			    {
 				/* Don't put a space before a TAB. */
 				if (p + 1 < leader + lead_len && p[1] == TAB)
@@ -1282,7 +1282,7 @@ open_line(
 
 		    /* If the leader ends in white space, don't add an
 		     * extra space */
-		    if (lead_len > 0 && vim_iswhite(leader[lead_len - 1]))
+		    if (lead_len > 0 && VIM_ISWHITE(leader[lead_len - 1]))
 			extra_space = FALSE;
 		    leader[lead_len] = NUL;
 		}
@@ -1305,7 +1305,7 @@ open_line(
 #endif
 					   )
 		{
-		    while (lead_len && vim_iswhite(*leader))
+		    while (lead_len && VIM_ISWHITE(*leader))
 		    {
 			--lead_len;
 			--newcol;
@@ -1680,7 +1680,7 @@ get_leader_len(
     char_u	*saved_flags = NULL;
 
     result = i = 0;
-    while (vim_iswhite(line[i]))    /* leading white space is ignored */
+    while (VIM_ISWHITE(line[i]))    /* leading white space is ignored */
 	++i;
 
     /*
@@ -1725,11 +1725,11 @@ get_leader_len(
 	     * When string starts with white space, must have some white space
 	     * (but the amount does not need to match, there might be a mix of
 	     * TABs and spaces). */
-	    if (vim_iswhite(string[0]))
+	    if (VIM_ISWHITE(string[0]))
 	    {
-		if (i == 0 || !vim_iswhite(line[i - 1]))
+		if (i == 0 || !VIM_ISWHITE(line[i - 1]))
 		    continue;  /* missing white space */
-		while (vim_iswhite(string[0]))
+		while (VIM_ISWHITE(string[0]))
 		    ++string;
 	    }
 	    for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j)
@@ -1740,7 +1740,7 @@ get_leader_len(
 	    /* When 'b' flag used, there must be white space or an
 	     * end-of-line after the string in the line. */
 	    if (vim_strchr(part_buf, COM_BLANK) != NULL
-			   && !vim_iswhite(line[i + j]) && line[i + j] != NUL)
+			   && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL)
 		continue;
 
 	    /* We have found a match, stop searching unless this is a middle
@@ -1785,7 +1785,7 @@ get_leader_len(
 	result = i;
 
 	/* Include any trailing white space. */
-	while (vim_iswhite(line[i]))
+	while (VIM_ISWHITE(line[i]))
 	    ++i;
 
 	if (include_space)
@@ -1853,11 +1853,11 @@ get_last_leader_offset(char_u *line, char_u **flags)
 	     * (but the amount does not need to match, there might be a mix of
 	     * TABs and spaces).
 	     */
-	    if (vim_iswhite(string[0]))
+	    if (VIM_ISWHITE(string[0]))
 	    {
-		if (i == 0 || !vim_iswhite(line[i - 1]))
+		if (i == 0 || !VIM_ISWHITE(line[i - 1]))
 		    continue;
-		while (vim_iswhite(string[0]))
+		while (VIM_ISWHITE(string[0]))
 		    ++string;
 	    }
 	    for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j)
@@ -1870,7 +1870,7 @@ get_last_leader_offset(char_u *line, char_u **flags)
 	     * end-of-line after the string in the line.
 	     */
 	    if (vim_strchr(part_buf, COM_BLANK) != NULL
-		    && !vim_iswhite(line[i + j]) && line[i + j] != NUL)
+		    && !VIM_ISWHITE(line[i + j]) && line[i + j] != NUL)
 	    {
 		continue;
 	    }
@@ -1907,7 +1907,7 @@ get_last_leader_offset(char_u *line, char_u **flags)
 	     * the comment leader correctly.
 	     */
 
-	    while (vim_iswhite(*com_leader))
+	    while (VIM_ISWHITE(*com_leader))
 		++com_leader;
 	    len1 = (int)STRLEN(com_leader);
 
@@ -1920,7 +1920,7 @@ get_last_leader_offset(char_u *line, char_u **flags)
 		    continue;
 		string = vim_strchr(part_buf2, ':');
 		++string;
-		while (vim_iswhite(*string))
+		while (VIM_ISWHITE(*string))
 		    ++string;
 		len2 = (int)STRLEN(string);
 		if (len2 == 0)
@@ -2070,7 +2070,7 @@ plines_win_col(win_T *wp, linenr_T lnum, long column)
     while (*s != NUL && --column >= 0)
     {
 	col += win_lbr_chartabsize(wp, line, s, (colnr_T)col, NULL);
-	mb_ptr_adv(s);
+	MB_PTR_ADV(s);
     }
 
     /*
@@ -2694,7 +2694,7 @@ inindent(int extra)
     char_u	*ptr;
     colnr_T	col;
 
-    for (col = 0, ptr = ml_get_curline(); vim_iswhite(*ptr); ++col)
+    for (col = 0, ptr = ml_get_curline(); VIM_ISWHITE(*ptr); ++col)
 	++ptr;
     if (col >= curwin->w_cursor.col + extra)
 	return TRUE;
@@ -4843,7 +4843,7 @@ gettail(char_u *fname)
     {
 	if (vim_ispathsep_nocolon(*p2))
 	    p1 = p2 + 1;
-	mb_ptr_adv(p2);
+	MB_PTR_ADV(p2);
     }
     return p1;
 }
@@ -4881,7 +4881,7 @@ gettail_dir(char_u *fname)
 		dir_end = next_dir_end;
 	    look_for_sep = TRUE;
 	}
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     }
     return dir_end;
 }
@@ -4916,7 +4916,7 @@ gettail_sep(char_u *fname)
 getnextcomp(char_u *fname)
 {
     while (*fname && !vim_ispathsep(*fname))
-	mb_ptr_adv(fname);
+	MB_PTR_ADV(fname);
     if (*fname)
 	++fname;
     return fname;
@@ -5278,7 +5278,8 @@ ind_find_start_CORS(void)	    /* XXX */
 
     /* If comment_pos is before rs_pos the raw string is inside the comment.
      * If rs_pos is before comment_pos the comment is inside the raw string. */
-    if (comment_pos == NULL || (rs_pos != NULL && lt(*rs_pos, *comment_pos)))
+    if (comment_pos == NULL || (rs_pos != NULL
+					     && LT_POS(*rs_pos, *comment_pos)))
 	return rs_pos;
     return comment_pos;
 }
@@ -5782,7 +5783,7 @@ cin_is_cpp_namespace(char_u *s)
 	p = cin_skipcomment(skipwhite(s + 9));
 	while (*p != NUL)
 	{
-	    if (vim_iswhite(*p))
+	    if (VIM_ISWHITE(*p))
 	    {
 		has_name = TRUE; /* found end of a name */
 		p = cin_skipcomment(skipwhite(p));
@@ -5830,7 +5831,7 @@ cin_is_cpp_extern_c(char_u *s)
 	p = cin_skipcomment(skipwhite(s + 6));
 	while (*p != NUL)
 	{
-	    if (vim_iswhite(*p))
+	    if (VIM_ISWHITE(*p))
 	    {
 		p = cin_skipcomment(skipwhite(p));
 	    }
@@ -5981,15 +5982,15 @@ cin_first_id_amount(void)
 	    || (len == 6 && STRNCMP(p, "signed", 6) == 0))
     {
 	s = skipwhite(p + len);
-	if ((STRNCMP(s, "int", 3) == 0 && vim_iswhite(s[3]))
-		|| (STRNCMP(s, "long", 4) == 0 && vim_iswhite(s[4]))
-		|| (STRNCMP(s, "short", 5) == 0 && vim_iswhite(s[5]))
-		|| (STRNCMP(s, "char", 4) == 0 && vim_iswhite(s[4])))
+	if ((STRNCMP(s, "int", 3) == 0 && VIM_ISWHITE(s[3]))
+		|| (STRNCMP(s, "long", 4) == 0 && VIM_ISWHITE(s[4]))
+		|| (STRNCMP(s, "short", 5) == 0 && VIM_ISWHITE(s[5]))
+		|| (STRNCMP(s, "char", 4) == 0 && VIM_ISWHITE(s[4])))
 	    p = s;
     }
     for (len = 0; vim_isIDc(p[len]); ++len)
 	;
-    if (len == 0 || !vim_iswhite(p[len]) || cin_nocode(p))
+    if (len == 0 || !VIM_ISWHITE(p[len]) || cin_nocode(p))
 	return 0;
 
     p = skipwhite(p + len);
@@ -6361,7 +6362,7 @@ cin_is_if_for_while_before_offset(char_u *line, int *poffset)
 
     if (offset-- < 2)
 	return 0;
-    while (offset > 2 && vim_iswhite(line[offset]))
+    while (offset > 2 && VIM_ISWHITE(line[offset]))
 	--offset;
 
     offset -= 1;
@@ -7223,7 +7224,8 @@ get_c_indent(void)
 	comment_pos = &tryposCopy;
     }
     trypos = find_start_rawstring(curbuf->b_ind_maxcomment);
-    if (trypos != NULL && (comment_pos == NULL || lt(*trypos, *comment_pos)))
+    if (trypos != NULL && (comment_pos == NULL
+					     || LT_POS(*trypos, *comment_pos)))
     {
 	amount = -1;
 	goto laterend;
@@ -7606,7 +7608,7 @@ get_c_indent(void)
 		    else
 		    {
 			col = our_paren_pos.col + 1;
-			while (vim_iswhite(l[col]))
+			while (VIM_ISWHITE(l[col]))
 			    col++;
 			if (l[col] != NUL)	/* In case of trailing space */
 			    our_paren_pos.col = col;
@@ -9358,7 +9360,7 @@ get_lisp_indent(void)
     {
 	paren = *pos;
 	pos = findmatch(NULL, '[');
-	if (pos == NULL || ltp(pos, &paren))
+	if (pos == NULL || LT_POSP(pos, &paren))
 	    pos = &paren;
     }
     if (pos != NULL)
@@ -9453,7 +9455,7 @@ get_lisp_indent(void)
 		    amount++;
 		    firsttry = amount;
 
-		    while (vim_iswhite(*that))
+		    while (VIM_ISWHITE(*that))
 		    {
 			amount += lbr_chartabsize(line, that, (colnr_T)amount);
 			++that;
@@ -9476,7 +9478,7 @@ get_lisp_indent(void)
 				    && (*that < '0' || *that > '9')))
 			{
 			    while (*that
-				    && (!vim_iswhite(*that)
+				    && (!VIM_ISWHITE(*that)
 					|| quotecount
 					|| parencount)
 				    && (!((*that == '(' || *that == '[')
@@ -9499,7 +9501,7 @@ get_lisp_indent(void)
 						line, &that, (colnr_T)amount);
 			    }
 			}
-			while (vim_iswhite(*that))
+			while (VIM_ISWHITE(*that))
 			{
 			    amount += lbr_chartabsize(
 						 line, that, (colnr_T)amount);
@@ -10382,7 +10384,7 @@ find_previous_pathsep(char_u *path, char_u **psep)
     {
 	if (vim_ispathsep(**psep))
 	    return OK;
-	mb_ptr_back(path, *psep);
+	MB_PTR_BACK(path, *psep);
     }
 
     return FAIL;
@@ -10537,7 +10539,7 @@ get_path_cutoff(char_u *fname, garray_T *gap)
     /* skip to the file or directory name */
     if (cutoff != NULL)
 	while (vim_ispathsep(*cutoff))
-	    mb_ptr_adv(cutoff);
+	    MB_PTR_ADV(cutoff);
 
     return cutoff;
 }
@@ -10794,7 +10796,7 @@ static int has_env_var(char_u *p);
     static int
 has_env_var(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	    ++p;
@@ -10820,7 +10822,7 @@ static int has_special_wildchar(char_u *p);
     static int
 has_special_wildchar(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	/* Allow for escaping. */
 	if (*p == '\\' && p[1] != NUL)
@@ -11297,7 +11299,7 @@ get_isolated_shell_name(void)
 
 	/* Find the last path separator before the space. */
 	p1 = p_sh;
-	for (p2 = p_sh; p2 < p; mb_ptr_adv(p2))
+	for (p2 = p_sh; p2 < p; MB_PTR_ADV(p2))
 	    if (vim_ispathsep(*p2))
 		p1 = p2 + 1;
 	p = vim_strnsave(p1, (int)(p - p1));
diff --git a/src/misc2.c b/src/misc2.c
index 3e02dc2275..4fcdd9e2e6 100644
--- a/src/misc2.c
+++ b/src/misc2.c
@@ -196,7 +196,7 @@ coladvance2(
 	    /* Count a tab for what it's worth (if list mode not on) */
 #ifdef FEAT_LINEBREAK
 	    csize = win_lbr_chartabsize(curwin, line, ptr, col, &head);
-	    mb_ptr_adv(ptr);
+	    MB_PTR_ADV(ptr);
 #else
 	    csize = lbr_chartabsize_adv(line, &ptr, col);
 #endif
@@ -1418,7 +1418,7 @@ vim_strsave_shellescape(char_u *string, int do_special, int do_newline)
 
     /* First count the number of extra bytes required. */
     length = (unsigned)STRLEN(string) + 3;  /* two quotes and a trailing NUL */
-    for (p = string; *p != NUL; mb_ptr_adv(p))
+    for (p = string; *p != NUL; MB_PTR_ADV(p))
     {
 # ifdef WIN32
 	if (!p_ssl)
@@ -1702,7 +1702,7 @@ del_trailing_spaces(char_u *ptr)
     char_u	*q;
 
     q = ptr + STRLEN(ptr);
-    while (--q > ptr && vim_iswhite(q[0]) && q[-1] != '\\' && q[-1] != Ctrl_V)
+    while (--q > ptr && VIM_ISWHITE(q[0]) && q[-1] != '\\' && q[-1] != Ctrl_V)
 	*q = NUL;
 }
 
@@ -1950,7 +1950,7 @@ vim_strrchr(char_u *string, int c)
     {
 	if (*p == c)
 	    retval = p;
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     }
     return retval;
 }
@@ -1971,7 +1971,7 @@ vim_strpbrk(char_u *s, char_u *charset)
     {
 	if (vim_strchr(charset, *s) != NULL)
 	    return s;
-	mb_ptr_adv(s);
+	MB_PTR_ADV(s);
     }
     return NULL;
 }
@@ -3370,7 +3370,7 @@ vim_chdirfile(char_u *fname)
  * Used for systems where stat() ignores a trailing slash on a file name.
  * The Vim code assumes a trailing slash is only ignored for a directory.
  */
-    int
+    static int
 illegal_slash(char *name)
 {
     if (name[0] == NUL)
@@ -3381,6 +3381,17 @@ illegal_slash(char *name)
 	return FALSE;	    /* trailing slash for a directory */
     return TRUE;
 }
+
+/*
+ * Special implementation of mch_stat() for Solaris.
+ */
+    int
+vim_stat(const char *name, stat_T *stp)
+{
+    /* On Solaris stat() accepts "file/" as if it was "file".  Return -1 if
+     * the name ends in "/" and it's not a directory. */
+    return illegal_slash(n) ? -1 : stat(n, p);
+}
 #endif
 
 #if defined(CURSOR_SHAPE) || defined(PROTO)
diff --git a/src/move.c b/src/move.c
index 849501fd90..9d175e115e 100644
--- a/src/move.c
+++ b/src/move.c
@@ -236,7 +236,7 @@ update_topline(void)
     /*
      * If the buffer is empty, always set topline to 1.
      */
-    if (bufempty())		/* special case - file is empty */
+    if (BUFEMPTY())		/* special case - file is empty */
     {
 	if (curwin->w_topline != 1)
 	    redraw_later(NOT_VALID);
diff --git a/src/normal.c b/src/normal.c
index 82a26ae79c..ca8fb4aeb2 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -1540,7 +1540,7 @@ do_pending_operator(cmdarg_T *cap, int old_col, int gui_yank)
 	    if (VIsual_select && VIsual_mode == 'V'
 					    && cap->oap->op_type != OP_DELETE)
 	    {
-		if (lt(VIsual, curwin->w_cursor))
+		if (LT_POS(VIsual, curwin->w_cursor))
 		{
 		    VIsual.col = 0;
 		    curwin->w_cursor.col =
@@ -1572,7 +1572,7 @@ do_pending_operator(cmdarg_T *cap, int old_col, int gui_yank)
 	 * Set oap->start to the first position of the operated text, oap->end
 	 * to the end of the operated text.  w_cursor is equal to oap->start.
 	 */
-	if (lt(oap->start, curwin->w_cursor))
+	if (LT_POS(oap->start, curwin->w_cursor))
 	{
 #ifdef FEAT_FOLDING
 	    /* Include folded lines completely. */
@@ -1776,7 +1776,7 @@ do_pending_operator(cmdarg_T *cap, int old_col, int gui_yank)
 		    && (!oap->inclusive
 			|| (oap->op_type == OP_YANK
 			    && gchar_pos(&oap->end) == NUL))
-		    && equalpos(oap->start, oap->end)
+		    && EQUAL_POS(oap->start, oap->end)
 #ifdef FEAT_VIRTUALEDIT
 		    && !(virtual_op && oap->start.coladd != oap->end.coladd)
 #endif
@@ -2685,12 +2685,12 @@ do_mouse(
 			    jump_flags = MOUSE_MAY_STOP_VIS;
 			else
 			{
-			    if ((lt(curwin->w_cursor, VIsual)
-					&& (lt(m_pos, curwin->w_cursor)
-					    || lt(VIsual, m_pos)))
-				    || (lt(VIsual, curwin->w_cursor)
-					&& (lt(m_pos, VIsual)
-					    || lt(curwin->w_cursor, m_pos))))
+			    if ((LT_POS(curwin->w_cursor, VIsual)
+					&& (LT_POS(m_pos, curwin->w_cursor)
+					    || LT_POS(VIsual, m_pos)))
+				    || (LT_POS(VIsual, curwin->w_cursor)
+					&& (LT_POS(m_pos, VIsual)
+					  || LT_POS(curwin->w_cursor, m_pos))))
 			    {
 				jump_flags = MOUSE_MAY_STOP_VIS;
 			    }
@@ -2756,7 +2756,7 @@ do_mouse(
 		 * Remember the start and end of visual before moving the
 		 * cursor.
 		 */
-		if (lt(curwin->w_cursor, VIsual))
+		if (LT_POS(curwin->w_cursor, VIsual))
 		{
 		    start_visual = curwin->w_cursor;
 		    end_visual = VIsual;
@@ -2893,9 +2893,9 @@ do_mouse(
 	     * If the click is after the end of visual, change the end.  If
 	     * the click is inside the visual, change the closest side.
 	     */
-	    if (lt(curwin->w_cursor, start_visual))
+	    if (LT_POS(curwin->w_cursor, start_visual))
 		VIsual = end_visual;
-	    else if (lt(end_visual, curwin->w_cursor))
+	    else if (LT_POS(end_visual, curwin->w_cursor))
 		VIsual = start_visual;
 	    else
 	    {
@@ -3092,14 +3092,14 @@ do_mouse(
 		 * not a word character, try finding a match and select a (),
 		 * {}, [], #if/#endif, etc. block. */
 		end_visual = curwin->w_cursor;
-		while (gc = gchar_pos(&end_visual), vim_iswhite(gc))
+		while (gc = gchar_pos(&end_visual), VIM_ISWHITE(gc))
 		    inc(&end_visual);
 		if (oap != NULL)
 		    oap->motion_type = MCHAR;
 		if (oap != NULL
 			&& VIsual_mode == 'v'
 			&& !vim_iswordc(gchar_pos(&end_visual))
-			&& equalpos(curwin->w_cursor, VIsual)
+			&& EQUAL_POS(curwin->w_cursor, VIsual)
 			&& (pos = findmatch(oap, NUL)) != NULL)
 		{
 		    curwin->w_cursor = *pos;
@@ -3107,7 +3107,7 @@ do_mouse(
 			VIsual_mode = 'V';
 		    else if (*p_sel == 'e')
 		    {
-			if (lt(curwin->w_cursor, VIsual))
+			if (LT_POS(curwin->w_cursor, VIsual))
 			    ++VIsual.col;
 			else
 			    ++curwin->w_cursor.col;
@@ -3119,7 +3119,7 @@ do_mouse(
 	    {
 		/* When not found a match or when dragging: extend to include
 		 * a word. */
-		if (lt(curwin->w_cursor, orig_cursor))
+		if (LT_POS(curwin->w_cursor, orig_cursor))
 		{
 		    find_start_of_word(&curwin->w_cursor);
 		    find_end_of_word(&VIsual);
@@ -3469,7 +3469,7 @@ find_ident_at_pos(
 	else
 #endif
 	    while (ptr[col] != NUL
-		    && (i == 0 ? !vim_iswordc(ptr[col]) : vim_iswhite(ptr[col]))
+		    && (i == 0 ? !vim_iswordc(ptr[col]) : VIM_ISWHITE(ptr[col]))
 # if defined(FEAT_BEVAL)
 		    && (!(find_type & FIND_EVAL) || ptr[col] != ']')
 # endif
@@ -3526,7 +3526,7 @@ find_ident_at_pos(
 	    while (col > 0
 		    && ((i == 0
 			    ? vim_iswordc(ptr[col - 1])
-			    : (!vim_iswhite(ptr[col - 1])
+			    : (!VIM_ISWHITE(ptr[col - 1])
 				&& (!(find_type & FIND_IDENT)
 				    || !vim_iswordc(ptr[col - 1]))))
 #if defined(FEAT_BEVAL)
@@ -3590,7 +3590,7 @@ find_ident_at_pos(
     else
 #endif
 	while ((i == 0 ? vim_iswordc(ptr[col])
-		       : (ptr[col] != NUL && !vim_iswhite(ptr[col])))
+		       : (ptr[col] != NUL && !VIM_ISWHITE(ptr[col])))
 # if defined(FEAT_BEVAL)
 		    || ((find_type & FIND_EVAL)
 			&& col <= (int)startcol
@@ -3747,7 +3747,7 @@ clear_showcmd(void)
 
     if (VIsual_active && !char_avail())
     {
-	int		cursor_bot = lt(VIsual, curwin->w_cursor);
+	int		cursor_bot = LT_POS(VIsual, curwin->w_cursor);
 	long		lines;
 	colnr_T		leftcol, rightcol;
 	linenr_T	top, bot;
@@ -4358,7 +4358,7 @@ find_decl(
     curwin->w_cursor.col = 0;
 
     /* Search forward for the identifier, ignore comment lines. */
-    clearpos(&found_pos);
+    CLEAR_POS(&found_pos);
     for (;;)
     {
 	valid = FALSE;
@@ -4424,13 +4424,10 @@ find_decl(
 	 * declarations this skips the function header without types. */
 	if (!valid)
 	{
-	    /* Braces needed due to macro expansion of clearpos. */
-	    clearpos(&found_pos);
+	    CLEAR_POS(&found_pos);
 	}
 	else
-	{
 	    found_pos = curwin->w_cursor;
-	}
 	/* Remove SEARCH_START from flags to avoid getting stuck at one
 	 * position. */
 	searchflags &= ~SEARCH_START;
@@ -5868,7 +5865,7 @@ get_visual_text(
     }
     else
     {
-	if (lt(curwin->w_cursor, VIsual))
+	if (LT_POS(curwin->w_cursor, VIsual))
 	{
 	    *pp = ml_get_pos(&curwin->w_cursor);
 	    *lenp = VIsual.col - curwin->w_cursor.col + 1;
@@ -6054,7 +6051,7 @@ nv_right(cmdarg_T *cap)
 		 * included, move to next line after that */
 		if (	   cap->oap->op_type != OP_NOP
 			&& !cap->oap->inclusive
-			&& !lineempty(curwin->w_cursor.lnum))
+			&& !LINEEMPTY(curwin->w_cursor.lnum))
 		    cap->oap->inclusive = TRUE;
 		else
 		{
@@ -6076,7 +6073,7 @@ nv_right(cmdarg_T *cap)
 	    }
 	    else
 	    {
-		if (!lineempty(curwin->w_cursor.lnum))
+		if (!LINEEMPTY(curwin->w_cursor.lnum))
 		    cap->oap->inclusive = TRUE;
 	    }
 	    break;
@@ -6155,7 +6152,7 @@ nv_left(cmdarg_T *cap)
 		 * Don't adjust op_end now, otherwise it won't work. */
 		if (	   (cap->oap->op_type == OP_DELETE
 			    || cap->oap->op_type == OP_CHANGE)
-			&& !lineempty(curwin->w_cursor.lnum))
+			&& !LINEEMPTY(curwin->w_cursor.lnum))
 		{
 		    char_u *cp = ml_get_cursor();
 
@@ -6367,7 +6364,7 @@ nv_search(cmdarg_T *cap)
     }
 
     (void)normal_search(cap, cap->cmdchar, cap->searchbuf,
-			(cap->arg || !equalpos(save_cursor, curwin->w_cursor))
+			(cap->arg || !EQUAL_POS(save_cursor, curwin->w_cursor))
 							   ? 0 : SEARCH_MARK);
 }
 
@@ -6381,7 +6378,7 @@ nv_next(cmdarg_T *cap)
     pos_T old = curwin->w_cursor;
     int   i = normal_search(cap, 0, NULL, SEARCH_MARK | cap->arg);
 
-    if (i == 1 && equalpos(old, curwin->w_cursor))
+    if (i == 1 && EQUAL_POS(old, curwin->w_cursor))
     {
 	/* Avoid getting stuck on the current cursor position, which can
 	 * happen when an offset is given and the cursor is on the last char
@@ -6723,9 +6720,9 @@ nv_brackets(cmdarg_T *cap)
 
 	    if (VIsual_active)
 	    {
-		start = ltoreq(VIsual, curwin->w_cursor)
+		start = LTOREQ_POS(VIsual, curwin->w_cursor)
 						  ? VIsual : curwin->w_cursor;
-		end =  equalpos(start,VIsual) ? curwin->w_cursor : VIsual;
+		end =  EQUAL_POS(start,VIsual) ? curwin->w_cursor : VIsual;
 		curwin->w_cursor = (dir == BACKWARD ? start : end);
 	    }
 # ifdef FEAT_CLIPBOARD
@@ -7349,7 +7346,7 @@ n_swapchar(cmdarg_T *cap)
     if (checkclearopq(cap->oap))
 	return;
 
-    if (lineempty(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
+    if (LINEEMPTY(curwin->w_cursor.lnum) && vim_strchr(p_ww, '~') == NULL)
     {
 	clearopbeep(cap->oap);
 	return;
@@ -7593,7 +7590,7 @@ nv_gomark(cmdarg_T *cap)
 #ifdef FEAT_FOLDING
     if (cap->oap->op_type == OP_NOP
 	    && pos != NULL
-	    && (pos == (pos_T *)-1 || !equalpos(old_cursor, *pos))
+	    && (pos == (pos_T *)-1 || !EQUAL_POS(old_cursor, *pos))
 	    && (fdo_flags & FDO_MARK)
 	    && old_KeyTyped)
 	foldOpenCursor();
@@ -8146,7 +8143,7 @@ nv_g_cmd(cmdarg_T *cap)
 	{
 	    do
 		i = gchar_cursor();
-	    while (vim_iswhite(i) && oneright() == OK);
+	    while (VIM_ISWHITE(i) && oneright() == OK);
 	}
 	curwin->w_set_curswant = TRUE;
 	break;
@@ -8170,7 +8167,7 @@ nv_g_cmd(cmdarg_T *cap)
 
 	    /* Decrease the cursor column until it's on a non-blank. */
 	    while (curwin->w_cursor.col > 0
-				    && vim_iswhite(ptr[curwin->w_cursor.col]))
+				    && VIM_ISWHITE(ptr[curwin->w_cursor.col]))
 		--curwin->w_cursor.col;
 	    curwin->w_set_curswant = TRUE;
 	    adjust_for_sel(cap);
@@ -8753,7 +8750,7 @@ nv_wordcmd(cmdarg_T *cap)
 	n = gchar_cursor();
 	if (n != NUL)			/* not an empty line */
 	{
-	    if (vim_iswhite(n))
+	    if (VIM_ISWHITE(n))
 	    {
 		/*
 		 * Reproduce a funny Vi behaviour: "cw" on a blank only
@@ -8797,7 +8794,7 @@ nv_wordcmd(cmdarg_T *cap)
 
     /* Don't leave the cursor on the NUL past the end of line. Unless we
      * didn't move it forward. */
-    if (lt(startpos, curwin->w_cursor))
+    if (LT_POS(startpos, curwin->w_cursor))
 	adjust_cursor(cap->oap);
 
     if (n == FAIL && cap->oap->op_type == OP_NOP)
@@ -8867,7 +8864,7 @@ nv_beginline(cmdarg_T *cap)
 adjust_for_sel(cmdarg_T *cap)
 {
     if (VIsual_active && cap->oap->inclusive && *p_sel == 'e'
-	    && gchar_cursor() != NUL && lt(VIsual, curwin->w_cursor))
+	    && gchar_cursor() != NUL && LT_POS(VIsual, curwin->w_cursor))
     {
 #ifdef FEAT_MBYTE
 	if (has_mbyte)
@@ -8889,9 +8886,9 @@ unadjust_for_sel(void)
 {
     pos_T	*pp;
 
-    if (*p_sel == 'e' && !equalpos(VIsual, curwin->w_cursor))
+    if (*p_sel == 'e' && !EQUAL_POS(VIsual, curwin->w_cursor))
     {
-	if (lt(VIsual, curwin->w_cursor))
+	if (LT_POS(VIsual, curwin->w_cursor))
 	    pp = &curwin->w_cursor;
 	else
 	    pp = &VIsual;
@@ -9105,8 +9102,8 @@ nv_edit(cmdarg_T *cap)
 
 	/* When the last char in the line was deleted then append. Detect this
 	 * by checking if the cursor moved to before the Visual area. */
-	if (*ml_get_cursor() != NUL && lt(curwin->w_cursor, old_pos)
-					   && lt(curwin->w_cursor, old_visual))
+	if (*ml_get_cursor() != NUL && LT_POS(curwin->w_cursor, old_pos)
+				       && LT_POS(curwin->w_cursor, old_visual))
 	    inc_cursor();
 
 	/* Insert to replace the deleted text with the pasted text. */
diff --git a/src/ops.c b/src/ops.c
index 757c115497..d3e97f07f0 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -113,9 +113,6 @@ static void	copy_yank_reg(yankreg_T *reg);
 static void	may_set_selection(void);
 #endif
 static void	dis_msg(char_u *p, int skip_esc);
-#if defined(FEAT_COMMENTS) || defined(PROTO)
-static char_u	*skip_comment(char_u *line, int process, int include_space, int *is_comment);
-#endif
 static void	block_prep(oparg_T *oap, struct block_def *, linenr_T, int);
 static int	do_addsub(int op_type, pos_T *pos, int length, linenr_T Prenum1);
 #if defined(FEAT_CLIPBOARD) || defined(FEAT_EVAL)
@@ -429,7 +426,7 @@ shift_block(oparg_T *oap, int amount)
 #endif
 		++bd.textstart;
 	}
-	for ( ; vim_iswhite(*bd.textstart); )
+	for ( ; VIM_ISWHITE(*bd.textstart); )
 	{
 	    /* TODO: is passing bd.textstart for start of the line OK? */
 	    incr = lbr_chartabsize_adv(bd.textstart, &bd.textstart,
@@ -486,12 +483,12 @@ shift_block(oparg_T *oap, int amount)
 	 * the part of which is displayed at the block's beginning. Let's start
 	 * searching from the next character. */
 	if (bd.startspaces)
-	    mb_ptr_adv(non_white);
+	    MB_PTR_ADV(non_white);
 
 	/* The character's column is in "bd.start_vcol".  */
 	non_white_col = bd.start_vcol;
 
-	while (vim_iswhite(*non_white))
+	while (VIM_ISWHITE(*non_white))
 	{
 	    incr = lbr_chartabsize_adv(bd.textstart, &non_white, non_white_col);
 	    non_white_col += incr;
@@ -526,7 +523,7 @@ shift_block(oparg_T *oap, int amount)
 	    if (verbatim_copy_width + incr > destination_col)
 		break;
 	    verbatim_copy_width += incr;
-	    mb_ptr_adv(verbatim_copy_end);
+	    MB_PTR_ADV(verbatim_copy_end);
 	}
 
 	/* If "destination_col" is different from the width of the initial
@@ -2190,7 +2187,7 @@ op_replace(oparg_T *oap, int c)
 	else if (!oap->inclusive)
 	    dec(&(oap->end));
 
-	while (ltoreq(curwin->w_cursor, oap->end))
+	while (LTOREQ_POS(curwin->w_cursor, oap->end))
 	{
 	    n = gchar_cursor();
 	    if (n != NUL)
@@ -2229,7 +2226,7 @@ op_replace(oparg_T *oap, int c)
 			    getvpos(&oap->end, end_vcol);
 		    }
 #endif
-		    pchar(curwin->w_cursor, c);
+		    PCHAR(curwin->w_cursor, c);
 		}
 	    }
 #ifdef FEAT_VIRTUALEDIT
@@ -2248,7 +2245,7 @@ op_replace(oparg_T *oap, int c)
 		curwin->w_cursor.col -= (virtcols + 1);
 		for (; virtcols >= 0; virtcols--)
 		{
-		    pchar(curwin->w_cursor, c);
+		    PCHAR(curwin->w_cursor, c);
 		    if (inc(&curwin->w_cursor) == -1)
 			break;
 		}
@@ -2338,7 +2335,7 @@ op_tilde(oparg_T *oap)
 		did_change |= swapchars(oap->op_type, &pos,
 				pos.lnum == oap->end.lnum ? oap->end.col + 1:
 					   (int)STRLEN(ml_get_pos(&pos)));
-		if (ltoreq(oap->end, pos) || inc(&pos) == -1)
+		if (LTOREQ_POS(oap->end, pos) || inc(&pos) == -1)
 		    break;
 	    }
 	if (did_change)
@@ -2490,7 +2487,7 @@ swapchar(int op_type, pos_T *pos)
 	}
 	else
 #endif
-	    pchar(*pos, nc);
+	    PCHAR(*pos, nc);
 	return TRUE;
     }
     return FALSE;
@@ -2575,7 +2572,7 @@ op_insert(oparg_T *oap, long count1)
 	    check_cursor_col();
 
 	    /* Works just like an 'i'nsert on the next character. */
-	    if (!lineempty(curwin->w_cursor.lnum)
+	    if (!LINEEMPTY(curwin->w_cursor.lnum)
 		    && oap->start_vcol != oap->end_vcol)
 		inc_cursor();
 	}
@@ -2588,7 +2585,7 @@ op_insert(oparg_T *oap, long count1)
      * have been converted to a tab as well, the column of the cursor
      * might have actually been reduced, so need to adjust here. */
     if (t1.lnum == curbuf->b_op_start_orig.lnum
-	    && lt(curbuf->b_op_start_orig, t1))
+	    && LT_POS(curbuf->b_op_start_orig, t1))
 	oap->start = curbuf->b_op_start_orig;
 
     /* If user has moved off this line, we don't know what to do, so do
@@ -2735,7 +2732,7 @@ op_change(oparg_T *oap)
     else if (op_delete(oap) == FAIL)
 	return FALSE;
 
-    if ((l > curwin->w_cursor.col) && !lineempty(curwin->w_cursor.lnum)
+    if ((l > curwin->w_cursor.col) && !LINEEMPTY(curwin->w_cursor.lnum)
 							 && !virtual_op)
 	inc_cursor();
 
@@ -3458,7 +3455,7 @@ do_put(
 		goto end;
 	    p = ml_get_cursor();
 	    if (dir == FORWARD && *p != NUL)
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 	    ptr = vim_strsave(p);
 	    if (ptr == NULL)
 		goto end;
@@ -3468,7 +3465,7 @@ do_put(
 	    oldp = ml_get_curline();
 	    p = oldp + curwin->w_cursor.col;
 	    if (dir == FORWARD && *p != NUL)
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 	    ptr = vim_strnsave(oldp, p - oldp);
 	    if (ptr == NULL)
 		goto end;
@@ -3519,7 +3516,7 @@ do_put(
 	    ++lnum;
 	/* In an empty buffer the empty line is going to be replaced, include
 	 * it in the saved lines. */
-	if ((bufempty() ? u_save(0, 2) : u_save(lnum - 1, lnum)) == FAIL)
+	if ((BUFEMPTY() ? u_save(0, 2) : u_save(lnum - 1, lnum)) == FAIL)
 	    goto end;
 #ifdef FEAT_FOLDING
 	if (dir == FORWARD)
@@ -4301,7 +4298,7 @@ dis_msg(
  * is_comment - will indicate whether the current line ends with an unclosed
  *		comment.
  */
-    static char_u *
+    char_u *
 skip_comment(
     char_u   *line,
     int      process,
@@ -4489,11 +4486,11 @@ do_join(
 	    if (has_mbyte)
 	    {
 		cend = curr + currsize;
-		mb_ptr_back(curr, cend);
+		MB_PTR_BACK(curr, cend);
 		endcurr1 = (*mb_ptr2char)(cend);
 		if (cend > curr)
 		{
-		    mb_ptr_back(curr, cend);
+		    MB_PTR_BACK(curr, cend);
 		    endcurr2 = (*mb_ptr2char)(cend);
 		}
 	    }
@@ -4655,18 +4652,18 @@ same_leader(
     line1 = vim_strsave(ml_get(lnum));
     if (line1 != NULL)
     {
-	for (idx1 = 0; vim_iswhite(line1[idx1]); ++idx1)
+	for (idx1 = 0; VIM_ISWHITE(line1[idx1]); ++idx1)
 	    ;
 	line2 = ml_get(lnum + 1);
 	for (idx2 = 0; idx2 < leader2_len; ++idx2)
 	{
-	    if (!vim_iswhite(line2[idx2]))
+	    if (!VIM_ISWHITE(line2[idx2]))
 	    {
 		if (line1[idx1++] != line2[idx2])
 		    break;
 	    }
 	    else
-		while (vim_iswhite(line1[idx1]))
+		while (VIM_ISWHITE(line1[idx1]))
 		    ++idx1;
 	}
 	vim_free(line1);
@@ -4936,7 +4933,7 @@ format_lines(
 		    && prev_is_end_par
 		    && curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
 	    {
-		if (do_second_indent && !lineempty(curwin->w_cursor.lnum + 1))
+		if (do_second_indent && !LINEEMPTY(curwin->w_cursor.lnum + 1))
 		{
 #ifdef FEAT_COMMENTS
 		    if (leader_len == 0 && next_leader_len == 0)
@@ -5092,10 +5089,10 @@ ends_in_white(linenr_T lnum)
 
     if (*s == NUL)
 	return FALSE;
-    /* Don't use STRLEN() inside vim_iswhite(), SAS/C complains: "macro
+    /* Don't use STRLEN() inside VIM_ISWHITE(), SAS/C complains: "macro
      * invocation may call function multiple times". */
     l = STRLEN(s) - 1;
-    return vim_iswhite(s[l]);
+    return VIM_ISWHITE(s[l]);
 }
 
 /*
@@ -5250,7 +5247,7 @@ block_prep(
 	incr = lbr_chartabsize(line, pstart, (colnr_T)bdp->start_vcol);
 	bdp->start_vcol += incr;
 #ifdef FEAT_VISUALEXTRA
-	if (vim_iswhite(*pstart))
+	if (VIM_ISWHITE(*pstart))
 	{
 	    bdp->pre_whitesp += incr;
 	    bdp->pre_whitesp_c++;
@@ -5262,7 +5259,7 @@ block_prep(
 	}
 #endif
 	prev_pstart = pstart;
-	mb_ptr_adv(pstart);
+	MB_PTR_ADV(pstart);
     }
     bdp->start_char_vcols = incr;
     if (bdp->start_vcol < oap->start_vcol)	/* line too short */
@@ -7237,7 +7234,7 @@ cursor_pos_info(dict_T *dict)
 
 	if (VIsual_active)
 	{
-	    if (lt(VIsual, curwin->w_cursor))
+	    if (LT_POS(VIsual, curwin->w_cursor))
 	    {
 		min_pos = VIsual;
 		max_pos = curwin->w_cursor;
diff --git a/src/option.c b/src/option.c
index 9fcf869d83..542710e746 100644
--- a/src/option.c
+++ b/src/option.c
@@ -4281,7 +4281,7 @@ set_init_3(void)
     }
 #endif
 
-    if (bufempty())
+    if (BUFEMPTY())
     {
 	int idx_ffs = findoption((char_u *)"ffs");
 
@@ -4549,7 +4549,7 @@ do_set(
 	    afterchar = arg[len];
 
 	    /* skip white space, allow ":set ai  ?" */
-	    while (vim_iswhite(arg[len]))
+	    while (VIM_ISWHITE(arg[len]))
 		++len;
 
 	    adding = FALSE;
@@ -4673,7 +4673,7 @@ do_set(
 		    }
 		}
 		if (vim_strchr((char_u *)"?!&<", nextchar) != NULL
-			&& arg[1] != NUL && !vim_iswhite(arg[1]))
+			&& arg[1] != NUL && !VIM_ISWHITE(arg[1]))
 		{
 		    errmsg = e_trailing;
 		    goto skip;
@@ -4731,7 +4731,7 @@ do_set(
 			(void)show_one_termcode(key_name, p, TRUE);
 		}
 		if (nextchar != '?'
-			&& nextchar != NUL && !vim_iswhite(afterchar))
+			&& nextchar != NUL && !VIM_ISWHITE(afterchar))
 		    errmsg = e_trailing;
 	    }
 	    else
@@ -4771,7 +4771,7 @@ do_set(
 			 * ":set invopt": invert
 			 * ":set opt" or ":set noopt": set or reset
 			 */
-			if (nextchar != NUL && !vim_iswhite(afterchar))
+			if (nextchar != NUL && !VIM_ISWHITE(afterchar))
 			{
 			    errmsg = e_trailing;
 			    goto skip;
@@ -4825,7 +4825,8 @@ do_set(
 				    || (long *)varp == &p_wcm)
 				&& (*arg == '<'
 				    || *arg == '^'
-				    || (*arg != NUL && (!arg[1] || vim_iswhite(arg[1]))
+				    || (*arg != NUL
+					&& (!arg[1] || VIM_ISWHITE(arg[1]))
 					&& !VIM_ISDIGIT(*arg))))
 			{
 			    value = string_to_key(arg);
@@ -4841,7 +4842,7 @@ do_set(
 			     * hex numbers. */
 			    vim_str2nr(arg, NULL, &i, STR2NR_ALL,
 							     &value, NULL, 0);
-			    if (arg[i] != NUL && !vim_iswhite(arg[i]))
+			    if (arg[i] != NUL && !VIM_ISWHITE(arg[i]))
 			    {
 				errmsg = e_invarg;
 				goto skip;
@@ -5033,7 +5034,7 @@ do_set(
 			     * do remove it for "\\\\machine\\path".
 			     * The reverse is found in ExpandOldSetting().
 			     */
-			    while (*arg && !vim_iswhite(*arg))
+			    while (*arg && !VIM_ISWHITE(*arg))
 			    {
 				if (*arg == '\\' && arg[1] != NUL
 #ifdef BACKSLASH_IN_FILENAME
@@ -5273,7 +5274,7 @@ do_set(
 			else
 			{
 			    ++arg; /* jump to after the '=' or ':' */
-			    for (p = arg; *p && !vim_iswhite(*p); ++p)
+			    for (p = arg; *p && !VIM_ISWHITE(*p); ++p)
 				if (*p == '\\' && p[1] != NUL)
 				    ++p;
 			    nextchar = *p;
@@ -5301,7 +5302,7 @@ skip:
 	     */
 	    for (i = 0; i < 2 ; ++i)
 	    {
-		while (*arg != NUL && !vim_iswhite(*arg))
+		while (*arg != NUL && !VIM_ISWHITE(*arg))
 		    if (*arg++ == '\\' && *arg != NUL)
 			++arg;
 		arg = skipwhite(arg);
@@ -6904,7 +6905,7 @@ did_set_string_option(
 	{
 	    if (ptr2cells(s) != 1)
 		errmsg = (char_u *)N_("E595: contains unprintable or wide character");
-	    mb_ptr_adv(s);
+	    MB_PTR_ADV(s);
 	}
     }
 #endif
@@ -11879,7 +11880,7 @@ ExpandOldSetting(int *num_file, char_u ***file)
 #ifdef BACKSLASH_IN_FILENAME
     /* For MS-Windows et al. we don't double backslashes at the start and
      * before a file name character. */
-    for (var = buf; *var != NUL; mb_ptr_adv(var))
+    for (var = buf; *var != NUL; MB_PTR_ADV(var))
 	if (var[0] == '\\' && var[1] == '\\'
 		&& expand_option_idx >= 0
 		&& (options[expand_option_idx].flags & P_EXPAND)
@@ -12079,7 +12080,7 @@ langmap_set(void)
     for (p = p_langmap; p[0] != NUL; )
     {
 	for (p2 = p; p2[0] != NUL && p2[0] != ',' && p2[0] != ';';
-							       mb_ptr_adv(p2))
+							       MB_PTR_ADV(p2))
 	{
 	    if (p2[0] == '\\' && p2[1] != NUL)
 		++p2;
@@ -12105,7 +12106,7 @@ langmap_set(void)
 	    to = NUL;
 	    if (p2 == NULL)
 	    {
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 		if (p[0] != ',')
 		{
 		    if (p[0] == '\\')
@@ -12145,10 +12146,10 @@ langmap_set(void)
 		langmap_mapchar[from & 255] = to;
 
 	    /* Advance to next pair */
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 	    if (p2 != NULL)
 	    {
-		mb_ptr_adv(p2);
+		MB_PTR_ADV(p2);
 		if (*p == ';')
 		{
 		    p = p2;
diff --git a/src/os_amiga.c b/src/os_amiga.c
index 87fcca97e1..85e0c4ef0e 100644
--- a/src/os_amiga.c
+++ b/src/os_amiga.c
@@ -1567,7 +1567,7 @@ sortcmp(const void *a, const void *b)
     int
 mch_has_exp_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	    ++p;
@@ -1580,7 +1580,7 @@ mch_has_exp_wildcard(char_u *p)
     int
 mch_has_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	    ++p;
diff --git a/src/os_mswin.c b/src/os_mswin.c
index 5f6e11dab6..a713ea190d 100644
--- a/src/os_mswin.c
+++ b/src/os_mswin.c
@@ -454,7 +454,7 @@ slash_adjust(char_u *p)
     {
 	if (*p == psepcN)
 	    *p = psepc;
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     }
 }
 
@@ -600,7 +600,7 @@ vim_stat(const char *name, stat_T *stp)
     vim_strncpy((char_u *)buf, (char_u *)name, sizeof(buf) - 1);
     p = buf + STRLEN(buf);
     if (p > buf)
-	mb_ptr_back(buf, p);
+	MB_PTR_BACK(buf, p);
 
     /* Remove trailing '\\' except root path. */
     if (p > buf && (*p == '\\' || *p == '/') && p[-1] != ':')
@@ -720,7 +720,7 @@ display_errors(void)
     int
 mch_has_exp_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (vim_strchr((char_u *)"?*[", *p) != NULL
 		|| (*p == '~' && p[1] != NUL))
@@ -736,7 +736,7 @@ mch_has_exp_wildcard(char_u *p)
     int
 mch_has_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (vim_strchr((char_u *)
 #  ifdef VIM_BACKTICK
diff --git a/src/os_unix.c b/src/os_unix.c
index 1ae9b3c6ff..21b67a3e89 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -6161,7 +6161,7 @@ mch_expand_wildcards(
 	STRCAT(command, pat[0] + 1);		/* exclude first backtick */
 	p = command + STRLEN(command) - 1;
 	*p-- = ')';				/* remove last backtick */
-	while (p > command && vim_iswhite(*p))
+	while (p > command && VIM_ISWHITE(*p))
 	    --p;
 	if (*p == '&')				/* remove trailing '&' */
 	{
@@ -6544,7 +6544,7 @@ save_patterns(
     int
 mch_has_exp_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	    ++p;
@@ -6568,7 +6568,7 @@ mch_has_exp_wildcard(char_u *p)
     int
 mch_has_wildcard(char_u *p)
 {
-    for ( ; *p; mb_ptr_adv(p))
+    for ( ; *p; MB_PTR_ADV(p))
     {
 	if (*p == '\\' && p[1] != NUL)
 	    ++p;
diff --git a/src/os_win32.c b/src/os_win32.c
index ed15920f1d..edd38e3a9e 100644
--- a/src/os_win32.c
+++ b/src/os_win32.c
@@ -4706,7 +4706,7 @@ mch_call_shell(
 	if (*cmdbase == '(')
 	    ++cmdbase;
 
-	if ((STRNICMP(cmdbase, "start", 5) == 0) && vim_iswhite(cmdbase[5]))
+	if ((STRNICMP(cmdbase, "start", 5) == 0) && VIM_ISWHITE(cmdbase[5]))
 	{
 	    STARTUPINFO		si;
 	    PROCESS_INFORMATION	pi;
@@ -4724,14 +4724,14 @@ mch_call_shell(
 
 	    cmdbase = skipwhite(cmdbase + 5);
 	    if ((STRNICMP(cmdbase, "/min", 4) == 0)
-		    && vim_iswhite(cmdbase[4]))
+		    && VIM_ISWHITE(cmdbase[4]))
 	    {
 		cmdbase = skipwhite(cmdbase + 4);
 		si.dwFlags = STARTF_USESHOWWINDOW;
 		si.wShowWindow = SW_SHOWMINNOACTIVE;
 	    }
 	    else if ((STRNICMP(cmdbase, "/b", 2) == 0)
-		    && vim_iswhite(cmdbase[2]))
+		    && VIM_ISWHITE(cmdbase[2]))
 	    {
 		cmdbase = skipwhite(cmdbase + 2);
 		flags = CREATE_NO_WINDOW;
@@ -5741,7 +5741,7 @@ write_chars(
 	{
 	    char_u *p = pchBuf;
 	    for (n = 0; n < cchwritten; n++)
-		mb_cptr_adv(p);
+		MB_CPTR_ADV(p);
 	    written = p - pchBuf;
 	    g_coord.X += (SHORT)mb_string2cells(pchBuf, written);
 	}
diff --git a/src/popupmnu.c b/src/popupmnu.c
index 307dbbedc6..58e38176c8 100644
--- a/src/popupmnu.c
+++ b/src/popupmnu.c
@@ -335,7 +335,7 @@ pum_redraw(void)
 		case 3: p = pum_array[idx].pum_extra; break;
 	    }
 	    if (p != NULL)
-		for ( ; ; mb_ptr_adv(p))
+		for ( ; ; MB_PTR_ADV(p))
 		{
 		    if (s == NULL)
 			s = p;
@@ -369,7 +369,7 @@ pum_redraw(void)
 					{
 					    size -= has_mbyte
 						    ? (*mb_ptr2cells)(rt) : 1;
-					    mb_ptr_adv(rt);
+					    MB_PTR_ADV(rt);
 					} while (size > pum_width);
 
 					if (size < pum_width)
@@ -590,7 +590,7 @@ pum_set_selected(int n, int repeat)
 			&& curbuf->b_p_bh[0] == 'w')
 		{
 		    /* Already a "wipeout" buffer, make it empty. */
-		    while (!bufempty())
+		    while (!BUFEMPTY())
 			ml_delete((linenr_T)1, FALSE);
 		}
 		else
diff --git a/src/proto/misc2.pro b/src/proto/misc2.pro
index 83384c028c..68c40daa1f 100644
--- a/src/proto/misc2.pro
+++ b/src/proto/misc2.pro
@@ -83,7 +83,7 @@ int get_real_state(void);
 int after_pathsep(char_u *b, char_u *p);
 int same_directory(char_u *f1, char_u *f2);
 int vim_chdirfile(char_u *fname);
-int illegal_slash(char *name);
+int vim_stat(const char *name, stat_T *stp);
 char_u *parse_shape_opt(int what);
 int get_shape_idx(int mouse);
 void update_mouseshape(int shape_idx);
diff --git a/src/proto/ops.pro b/src/proto/ops.pro
index ef044e7aba..0740ddad3d 100644
--- a/src/proto/ops.pro
+++ b/src/proto/ops.pro
@@ -38,6 +38,7 @@ void adjust_cursor_eol(void);
 int preprocs_left(void);
 int get_register_name(int num);
 void ex_display(exarg_T *eap);
+char_u *skip_comment(char_u *line, int process, int include_space, int *is_comment);
 int do_join(long count, int insert_space, int save_undo, int use_formatoptions, int setmark);
 void op_format(oparg_T *oap, int keep_cursor);
 void op_formatexpr(oparg_T *oap);
diff --git a/src/quickfix.c b/src/quickfix.c
index e4ea401ece..090b046dd2 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -2608,7 +2608,7 @@ qf_fmt_text(char_u *text, char_u *buf, int bufsize)
 	{
 	    buf[i] = ' ';
 	    while (*++p != NUL)
-		if (!vim_iswhite(*p) && *p != '\n')
+		if (!VIM_ISWHITE(*p) && *p != '\n')
 		    break;
 	}
 	else
diff --git a/src/regexp.c b/src/regexp.c
index 78d643174e..91b8015bb8 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -1205,7 +1205,7 @@ skip_anyof(char_u *p)
 	    {
 		++p;
 		if (*p != ']' && *p != NUL)
-		    mb_ptr_adv(p);
+		    MB_PTR_ADV(p);
 	    }
 	else if (*p == '\\'
 		&& !reg_cpo_bsl
@@ -1252,7 +1252,7 @@ skip_regexp(
 	mymagic = MAGIC_OFF;
     get_cpo_flags();
 
-    for (; p[0] != NUL; mb_ptr_adv(p))
+    for (; p[0] != NUL; MB_PTR_ADV(p))
     {
 	if (p[0] == dirc)	/* found end of regexp */
 	    break;
@@ -3864,7 +3864,7 @@ bt_regexec_both(
 	    {
 		if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0)
 		    break;		/* Found it. */
-		mb_ptr_adv(s);
+		MB_PTR_ADV(s);
 	    }
 #endif
 	else
@@ -3872,7 +3872,7 @@ bt_regexec_both(
 	    {
 		if (cstrncmp(s, prog->regmust, &prog->regmlen) == 0)
 		    break;		/* Found it. */
-		mb_ptr_adv(s);
+		MB_PTR_ADV(s);
 	    }
 	if (s == NULL)		/* Not present. */
 	    goto theend;
@@ -4150,7 +4150,7 @@ reg_match_visual(void)
 
     if (VIsual_active)
     {
-	if (lt(VIsual, wp->w_cursor))
+	if (LT_POS(VIsual, wp->w_cursor))
 	{
 	    top = VIsual;
 	    bot = wp->w_cursor;
@@ -4164,7 +4164,7 @@ reg_match_visual(void)
     }
     else
     {
-	if (lt(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end))
+	if (LT_POS(curbuf->b_visual.vi_start, curbuf->b_visual.vi_end))
 	{
 	    top = curbuf->b_visual.vi_start;
 	    bot = curbuf->b_visual.vi_end;
@@ -4204,7 +4204,7 @@ reg_match_visual(void)
     return TRUE;
 }
 
-#define ADVANCE_REGINPUT() mb_ptr_adv(reginput)
+#define ADVANCE_REGINPUT() MB_PTR_ADV(reginput)
 
 /*
  * The arguments from BRACE_LIMITS are stored here.  They are actually local
@@ -4523,14 +4523,14 @@ regmatch(
 	    break;
 
 	  case WHITE:
-	    if (!vim_iswhite(c))
+	    if (!VIM_ISWHITE(c))
 		status = RA_NOMATCH;
 	    else
 		ADVANCE_REGINPUT();
 	    break;
 
 	  case NWHITE:
-	    if (c == NUL || vim_iswhite(c))
+	    if (c == NUL || VIM_ISWHITE(c))
 		status = RA_NOMATCH;
 	    else
 		ADVANCE_REGINPUT();
@@ -4775,7 +4775,7 @@ regmatch(
 	    {
 		/* Skip composing characters. */
 		while (utf_iscomposing(utf_ptr2char(reginput)))
-		    mb_cptr_adv(reginput);
+		    MB_CPTR_ADV(reginput);
 	    }
 #endif
 	    break;
@@ -5557,7 +5557,7 @@ regmatch(
 			no = FAIL;
 		    else
 		    {
-			mb_ptr_back(regline, rp->rs_un.regsave.rs_u.ptr);
+			MB_PTR_BACK(regline, rp->rs_un.regsave.rs_u.ptr);
 			if (limit > 0 && (long)(behind_pos.rs_u.ptr
 				     - rp->rs_un.regsave.rs_u.ptr) > limit)
 			    no = FAIL;
@@ -5644,7 +5644,7 @@ regmatch(
 				fast_breakcheck();
 			    }
 			    else
-				mb_ptr_back(regline, reginput);
+				MB_PTR_BACK(regline, reginput);
 			}
 			else
 			{
@@ -5788,7 +5788,7 @@ regrepeat(
 	    while (*scan != NUL && count < maxcount)
 	    {
 		++count;
-		mb_ptr_adv(scan);
+		MB_PTR_ADV(scan);
 	    }
 	    if (!REG_MULTI || !WITH_NL(OP(p)) || reglnum > rex.reg_maxline
 				      || rex.reg_line_lbr || count == maxcount)
@@ -5811,7 +5811,7 @@ regrepeat(
 	{
 	    if (vim_isIDc(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan)))
 	    {
-		mb_ptr_adv(scan);
+		MB_PTR_ADV(scan);
 	    }
 	    else if (*scan == NUL)
 	    {
@@ -5842,7 +5842,7 @@ regrepeat(
 	    if (vim_iswordp_buf(scan, rex.reg_buf)
 					  && (testval || !VIM_ISDIGIT(*scan)))
 	    {
-		mb_ptr_adv(scan);
+		MB_PTR_ADV(scan);
 	    }
 	    else if (*scan == NUL)
 	    {
@@ -5872,7 +5872,7 @@ regrepeat(
 	{
 	    if (vim_isfilec(PTR2CHAR(scan)) && (testval || !VIM_ISDIGIT(*scan)))
 	    {
-		mb_ptr_adv(scan);
+		MB_PTR_ADV(scan);
 	    }
 	    else if (*scan == NUL)
 	    {
@@ -5913,7 +5913,7 @@ regrepeat(
 	    else if (vim_isprintc(PTR2CHAR(scan)) == 1
 					  && (testval || !VIM_ISDIGIT(*scan)))
 	    {
-		mb_ptr_adv(scan);
+		MB_PTR_ADV(scan);
 	    }
 	    else if (rex.reg_line_lbr && *scan == '\n' && WITH_NL(OP(p)))
 		++scan;
@@ -7546,7 +7546,7 @@ vim_regsub_both(
 	    {
 		int had_backslash = FALSE;
 
-		for (s = eval_result; *s != NUL; mb_ptr_adv(s))
+		for (s = eval_result; *s != NUL; MB_PTR_ADV(s))
 		{
 		    /* Change NL to CR, so that it becomes a line break,
 		     * unless called from vim_regexec_nl().
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index de22dcbacc..20ef1869e2 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -1425,7 +1425,7 @@ nfa_regatom(void)
 		    EMSG(_(e_nopresub));
 		    return FAIL;
 		}
-		for (lp = reg_prev_sub; *lp != NUL; mb_cptr_adv(lp))
+		for (lp = reg_prev_sub; *lp != NUL; MB_CPTR_ADV(lp))
 		{
 		    EMIT(PTR2CHAR(lp));
 		    if (lp != reg_prev_sub)
@@ -1672,7 +1672,7 @@ collection:
 		    else
 			EMIT(result);
 		    regparse = endp;
-		    mb_ptr_adv(regparse);
+		    MB_PTR_ADV(regparse);
 		    return OK;
 		}
 		/*
@@ -1684,7 +1684,7 @@ collection:
 		if (*regparse == '^')			/* negated range */
 		{
 		    negated = TRUE;
-		    mb_ptr_adv(regparse);
+		    MB_PTR_ADV(regparse);
 		    EMIT(NFA_START_NEG_COLL);
 		}
 		else
@@ -1694,7 +1694,7 @@ collection:
 		    startc = '-';
 		    EMIT(startc);
 		    EMIT(NFA_CONCAT);
-		    mb_ptr_adv(regparse);
+		    MB_PTR_ADV(regparse);
 		}
 		/* Emit the OR branches for each character in the [] */
 		emit_range = FALSE;
@@ -1797,7 +1797,7 @@ collection:
 		    {
 			emit_range = TRUE;
 			startc = oldstartc;
-			mb_ptr_adv(regparse);
+			MB_PTR_ADV(regparse);
 			continue;	    /* reading the end of the range */
 		    }
 
@@ -1817,7 +1817,7 @@ collection:
 			    )
 			)
 		    {
-			mb_ptr_adv(regparse);
+			MB_PTR_ADV(regparse);
 
 			if (*regparse == 'n')
 			    startc = reg_string ? NL : NFA_NEWL;
@@ -1832,7 +1832,7 @@ collection:
 				/* TODO(RE) This needs more testing */
 				startc = coll_get_char();
 				got_coll_char = TRUE;
-				mb_ptr_back(old_regparse, regparse);
+				MB_PTR_BACK(old_regparse, regparse);
 			    }
 			    else
 			    {
@@ -1932,10 +1932,10 @@ collection:
 			}
 		    }
 
-		    mb_ptr_adv(regparse);
+		    MB_PTR_ADV(regparse);
 		} /* while (p < endp) */
 
-		mb_ptr_back(old_regparse, regparse);
+		MB_PTR_BACK(old_regparse, regparse);
 		if (*regparse == '-')	    /* if last, '-' is just a char */
 		{
 		    EMIT('-');
@@ -1944,7 +1944,7 @@ collection:
 
 		/* skip the trailing ] */
 		regparse = endp;
-		mb_ptr_adv(regparse);
+		MB_PTR_ADV(regparse);
 
 		/* Mark end of the collection. */
 		if (negated == TRUE)
@@ -6351,12 +6351,12 @@ nfa_regmatch(
 		break;
 
 	    case NFA_WHITE:	/*  \s	*/
-		result = vim_iswhite(curc);
+		result = VIM_ISWHITE(curc);
 		ADD_STATE_IF_MATCH(t->state);
 		break;
 
 	    case NFA_NWHITE:	/*  \S	*/
-		result = curc != NUL && !vim_iswhite(curc);
+		result = curc != NUL && !VIM_ISWHITE(curc);
 		ADD_STATE_IF_MATCH(t->state);
 		break;
 
diff --git a/src/screen.c b/src/screen.c
index 1b020007d7..ed7e2b8235 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -2714,7 +2714,7 @@ fold_line(
      */
     if (VIsual_active && wp->w_buffer == curwin->w_buffer)
     {
-	if (ltoreq(curwin->w_cursor, VIsual))
+	if (LTOREQ_POS(curwin->w_cursor, VIsual))
 	{
 	    /* Visual is after curwin->w_cursor */
 	    top = &curwin->w_cursor;
@@ -3170,7 +3170,7 @@ win_line(
     if (VIsual_active && wp->w_buffer == curwin->w_buffer)
     {
 					/* Visual is after curwin->w_cursor */
-	if (ltoreq(curwin->w_cursor, VIsual))
+	if (LTOREQ_POS(curwin->w_cursor, VIsual))
 	{
 	    top = &curwin->w_cursor;
 	    bot = &VIsual;
@@ -3371,7 +3371,7 @@ win_line(
 	if (lcs_trail)
 	{
 	    trailcol = (colnr_T)STRLEN(ptr);
-	    while (trailcol > (colnr_T)0 && vim_iswhite(ptr[trailcol - 1]))
+	    while (trailcol > (colnr_T)0 && VIM_ISWHITE(ptr[trailcol - 1]))
 		--trailcol;
 	    trailcol += (colnr_T) (ptr - line);
 	}
@@ -3397,7 +3397,7 @@ win_line(
 #ifdef FEAT_MBYTE
 	    prev_ptr = ptr;
 #endif
-	    mb_ptr_adv(ptr);
+	    MB_PTR_ADV(ptr);
 	}
 
 	/* When:
@@ -4554,7 +4554,7 @@ win_line(
 		 * Found last space before word: check for line break.
 		 */
 		if (wp->w_p_lbr && c0 == c
-				      && vim_isbreak(c) && !vim_isbreak(*ptr))
+				  && VIM_ISBREAK(c) && !VIM_ISBREAK((int)*ptr))
 		{
 # ifdef FEAT_MBYTE
 		    int mb_off = has_mbyte ? (*mb_head_off)(line, ptr - 1) : 0;
@@ -4577,7 +4577,7 @@ win_line(
 # else
 		    c_extra = ' ';
 # endif
-		    if (vim_iswhite(c))
+		    if (VIM_ISWHITE(c))
 		    {
 #ifdef FEAT_CONCEAL
 			if (c == TAB)
@@ -6419,7 +6419,7 @@ status_match_len(expand_T *xp, char_u *s)
     {
 	s += skip_status_match_char(xp, s);
 	len += ptr2cells(s);
-	mb_ptr_adv(s);
+	MB_PTR_ADV(s);
     }
 
     return len;
@@ -10498,7 +10498,7 @@ draw_tabline(void)
 		    while (len > room)
 		    {
 			len -= ptr2cells(p);
-			mb_ptr_adv(p);
+			MB_PTR_ADV(p);
 		    }
 		else
 #endif
diff --git a/src/search.c b/src/search.c
index a66276bce9..5f3fdaa0f0 100644
--- a/src/search.c
+++ b/src/search.c
@@ -1652,7 +1652,11 @@ searchc(cmdarg_T *cap, int t_cmd)
     }
     else		/* repeat previous search */
     {
-	if (*lastc == NUL)
+	if (*lastc == NUL
+#ifdef FEAT_MBYTE
+		&& lastc_bytelen == 1
+#endif
+		)
 	    return FAIL;
 	if (dir)	/* repeat in opposite direction */
 	    dir = -lastcdir;
@@ -2105,7 +2109,7 @@ findmatchlimit(
 
     do_quotes = -1;
     start_in_quotes = MAYBE;
-    clearpos(&match_pos);
+    CLEAR_POS(&match_pos);
 
     /* backward search: Check if this line contains a single-line comment */
     if ((backwards && comment_dir)
@@ -2725,7 +2729,7 @@ findsent(int dir, long count)
 	    if (decl(&pos) == -1)
 		break;
 	    /* when going forward: Stop in front of empty line */
-	    if (lineempty(pos.lnum) && dir == FORWARD)
+	    if (LINEEMPTY(pos.lnum) && dir == FORWARD)
 	    {
 		incl(&pos);
 		goto found;
@@ -3087,7 +3091,7 @@ bck_word(long count, int bigword, int stop)
 	    while (cls() == 0)
 	    {
 		if (curwin->w_cursor.col == 0
-				      && lineempty(curwin->w_cursor.lnum))
+				      && LINEEMPTY(curwin->w_cursor.lnum))
 		    goto finished;
 		if (dec_cursor() == -1) /* hit start of file, stop here */
 		    return OK;
@@ -3168,7 +3172,7 @@ end_word(
 	    while (cls() == 0)
 	    {
 		if (empty && curwin->w_cursor.col == 0
-					  && lineempty(curwin->w_cursor.lnum))
+					  && LINEEMPTY(curwin->w_cursor.lnum))
 		    goto finished;
 		if (inc_cursor() == -1)	    /* hit end of file, stop here */
 		    return FAIL;
@@ -3228,7 +3232,7 @@ bckend_word(
 	 */
 	while (cls() == 0)
 	{
-	    if (curwin->w_cursor.col == 0 && lineempty(curwin->w_cursor.lnum))
+	    if (curwin->w_cursor.col == 0 && LINEEMPTY(curwin->w_cursor.lnum))
 		break;
 	    if ((i = dec_cursor()) == -1 || (eol && i == 1))
 		return OK;
@@ -3281,7 +3285,7 @@ find_first_blank(pos_T *posp)
     while (decl(posp) != -1)
     {
 	c = gchar_pos(posp);
-	if (!vim_iswhite(c))
+	if (!VIM_ISWHITE(c))
 	{
 	    incl(posp);
 	    break;
@@ -3325,17 +3329,17 @@ current_word(
     int		include_white = FALSE;
 
     cls_bigword = bigword;
-    clearpos(&start_pos);
+    CLEAR_POS(&start_pos);
 
     /* Correct cursor when 'selection' is exclusive */
-    if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor))
+    if (VIsual_active && *p_sel == 'e' && LT_POS(VIsual, curwin->w_cursor))
 	dec_cursor();
 
     /*
      * When Visual mode is not active, or when the VIsual area is only one
      * character, select the word and/or white space under the cursor.
      */
-    if (!VIsual_active || equalpos(curwin->w_cursor, VIsual))
+    if (!VIsual_active || EQUAL_POS(curwin->w_cursor, VIsual))
     {
 	/*
 	 * Go to start of current word or white space.
@@ -3392,7 +3396,7 @@ current_word(
     while (count > 0)
     {
 	inclusive = TRUE;
-	if (VIsual_active && lt(curwin->w_cursor, VIsual))
+	if (VIsual_active && LT_POS(curwin->w_cursor, VIsual))
 	{
 	    /*
 	     * In Visual mode, with cursor at start: move cursor back.
@@ -3468,7 +3472,7 @@ current_word(
 
     if (VIsual_active)
     {
-	if (*p_sel == 'e' && inclusive && ltoreq(VIsual, curwin->w_cursor))
+	if (*p_sel == 'e' && inclusive && LTOREQ_POS(VIsual, curwin->w_cursor))
 	    inc_cursor();
 	if (VIsual_mode == 'V')
 	{
@@ -3503,10 +3507,10 @@ current_sent(oparg_T *oap, long count, int include)
     /*
      * When the Visual area is bigger than one character: Extend it.
      */
-    if (VIsual_active && !equalpos(start_pos, VIsual))
+    if (VIsual_active && !EQUAL_POS(start_pos, VIsual))
     {
 extend:
-	if (lt(start_pos, VIsual))
+	if (LT_POS(start_pos, VIsual))
 	{
 	    /*
 	     * Cursor at start of Visual area.
@@ -3517,10 +3521,10 @@ extend:
 	     */
 	    at_start_sent = TRUE;
 	    decl(&pos);
-	    while (lt(pos, curwin->w_cursor))
+	    while (LT_POS(pos, curwin->w_cursor))
 	    {
 		c = gchar_pos(&pos);
-		if (!vim_iswhite(c))
+		if (!VIM_ISWHITE(c))
 		{
 		    at_start_sent = FALSE;
 		    break;
@@ -3530,7 +3534,7 @@ extend:
 	    if (!at_start_sent)
 	    {
 		findsent(BACKWARD, 1L);
-		if (equalpos(curwin->w_cursor, start_pos))
+		if (EQUAL_POS(curwin->w_cursor, start_pos))
 		    at_start_sent = TRUE;  /* exactly at start of sentence */
 		else
 		    /* inside a sentence, go to its end (start of next) */
@@ -3543,7 +3547,7 @@ extend:
 		if (at_start_sent)
 		    find_first_blank(&curwin->w_cursor);
 		c = gchar_cursor();
-		if (!at_start_sent || (!include && !vim_iswhite(c)))
+		if (!at_start_sent || (!include && !VIM_ISWHITE(c)))
 		    findsent(BACKWARD, 1L);
 		at_start_sent = !at_start_sent;
 	    }
@@ -3559,13 +3563,14 @@ extend:
 	     */
 	    incl(&pos);
 	    at_start_sent = TRUE;
-	    if (!equalpos(pos, curwin->w_cursor)) /* not just before a sentence */
+	    /* not just before a sentence */
+	    if (!EQUAL_POS(pos, curwin->w_cursor))
 	    {
 		at_start_sent = FALSE;
-		while (lt(pos, curwin->w_cursor))
+		while (LT_POS(pos, curwin->w_cursor))
 		{
 		    c = gchar_pos(&pos);
-		    if (!vim_iswhite(c))
+		    if (!VIM_ISWHITE(c))
 		    {
 			at_start_sent = TRUE;
 			break;
@@ -3591,9 +3596,9 @@ extend:
      * If the cursor started on a blank, check if it is just before the start
      * of the next sentence.
      */
-    while (c = gchar_pos(&pos), vim_iswhite(c))	/* vim_iswhite() is a macro */
+    while (c = gchar_pos(&pos), VIM_ISWHITE(c))	/* VIM_ISWHITE() is a macro */
 	incl(&pos);
-    if (equalpos(pos, curwin->w_cursor))
+    if (EQUAL_POS(pos, curwin->w_cursor))
     {
 	start_blank = TRUE;
 	find_first_blank(&start_pos);	/* go back to first blank */
@@ -3627,18 +3632,18 @@ extend:
 	if (start_blank)
 	{
 	    find_first_blank(&curwin->w_cursor);
-	    c = gchar_pos(&curwin->w_cursor);	/* vim_iswhite() is a macro */
-	    if (vim_iswhite(c))
+	    c = gchar_pos(&curwin->w_cursor);	/* VIM_ISWHITE() is a macro */
+	    if (VIM_ISWHITE(c))
 		decl(&curwin->w_cursor);
 	}
-	else if (c = gchar_cursor(), !vim_iswhite(c))
+	else if (c = gchar_cursor(), !VIM_ISWHITE(c))
 	    find_first_blank(&start_pos);
     }
 
     if (VIsual_active)
     {
 	/* Avoid getting stuck with "is" on a single space before a sentence. */
-	if (equalpos(start_pos, curwin->w_cursor))
+	if (EQUAL_POS(start_pos, curwin->w_cursor))
 	    goto extend;
 	if (*p_sel == 'e')
 	    ++curwin->w_cursor.col;
@@ -3687,7 +3692,7 @@ current_block(
     /*
      * If we start on '(', '{', ')', '}', etc., use the whole block inclusive.
      */
-    if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
+    if (!VIsual_active || EQUAL_POS(VIsual, curwin->w_cursor))
     {
 	setpcmark();
 	if (what == '{')		/* ignore indent */
@@ -3698,7 +3703,7 @@ current_block(
 	    /* cursor on '(' or '{', move cursor just after it */
 	    ++curwin->w_cursor.col;
     }
-    else if (lt(VIsual, curwin->w_cursor))
+    else if (LT_POS(VIsual, curwin->w_cursor))
     {
 	old_start = VIsual;
 	curwin->w_cursor = VIsual;	    /* cursor at low end of Visual */
@@ -3756,7 +3761,7 @@ current_block(
 	 * In Visual mode, when the resulting area is not bigger than what we
 	 * started with, extend it to the next block, and then exclude again.
 	 */
-	if (!lt(start_pos, old_start) && !lt(old_end, curwin->w_cursor)
+	if (!LT_POS(start_pos, old_start) && !LT_POS(old_end, curwin->w_cursor)
 		&& VIsual_active)
 	{
 	    curwin->w_cursor = old_start;
@@ -3797,7 +3802,7 @@ current_block(
 	oap->inclusive = FALSE;
 	if (sol)
 	    incl(&curwin->w_cursor);
-	else if (ltoreq(start_pos, curwin->w_cursor))
+	else if (LTOREQ_POS(start_pos, curwin->w_cursor))
 	    /* Include the character under the cursor. */
 	    oap->inclusive = TRUE;
 	else
@@ -3832,7 +3837,7 @@ in_html_tag(
 
 	/* We search forward until the cursor, because searching backwards is
 	 * very slow for DBCS encodings. */
-	for (p = line; p < line + curwin->w_cursor.col; mb_ptr_adv(p))
+	for (p = line; p < line + curwin->w_cursor.col; MB_PTR_ADV(p))
 	    if (*p == '>' || *p == '<')
 	    {
 		lc = *p;
@@ -3852,7 +3857,7 @@ in_html_tag(
 	{
 	    if (*p == '<')	/* find '<' under/before cursor */
 		break;
-	    mb_ptr_back(line, p);
+	    MB_PTR_BACK(line, p);
 	    if (*p == '>')	/* find '>' before cursor */
 		break;
 	}
@@ -3863,7 +3868,7 @@ in_html_tag(
     pos.lnum = curwin->w_cursor.lnum;
     pos.col = (colnr_T)(p - line);
 
-    mb_ptr_adv(p);
+    MB_PTR_ADV(p);
     if (end_tag)
 	/* check that there is a '/' after the '<' */
 	return *p == '/';
@@ -3921,7 +3926,7 @@ current_tagblock(
     /*
      * If we start on "<aaa>" select that block.
      */
-    if (!VIsual_active || equalpos(VIsual, curwin->w_cursor))
+    if (!VIsual_active || EQUAL_POS(VIsual, curwin->w_cursor))
     {
 	setpcmark();
 
@@ -3947,7 +3952,7 @@ current_tagblock(
 	    old_end = curwin->w_cursor;
 	}
     }
-    else if (lt(VIsual, curwin->w_cursor))
+    else if (LT_POS(VIsual, curwin->w_cursor))
     {
 	old_start = VIsual;
 	curwin->w_cursor = VIsual;	    /* cursor at low end of Visual */
@@ -3978,7 +3983,7 @@ again:
      */
     inc_cursor();
     p = ml_get_cursor();
-    for (cp = p; *cp != NUL && *cp != '>' && !vim_iswhite(*cp); mb_ptr_adv(cp))
+    for (cp = p; *cp != NUL && *cp != '>' && !VIM_ISWHITE(*cp); MB_PTR_ADV(cp))
 	;
     len = (int)(cp - p);
     if (len == 0)
@@ -4004,7 +4009,7 @@ again:
     vim_free(spat);
     vim_free(epat);
 
-    if (r < 1 || lt(curwin->w_cursor, old_end))
+    if (r < 1 || LT_POS(curwin->w_cursor, old_end))
     {
 	/* Can't find other end or it's before the previous end.  Could be a
 	 * HTML tag that doesn't have a matching end.  Search backwards for
@@ -4051,7 +4056,7 @@ again:
 
 	/* If we now have the same text as before reset "do_include" and try
 	 * again. */
-	if (equalpos(start_pos, old_start) && equalpos(end_pos, old_end))
+	if (EQUAL_POS(start_pos, old_start) && EQUAL_POS(end_pos, old_end))
 	{
 	    do_include = TRUE;
 	    curwin->w_cursor = old_start;
@@ -4064,7 +4069,7 @@ again:
     {
 	/* If the end is before the start there is no text between tags, select
 	 * the char under the cursor. */
-	if (lt(end_pos, start_pos))
+	if (LT_POS(end_pos, start_pos))
 	    curwin->w_cursor = start_pos;
 	else if (*p_sel == 'e')
 	    inc_cursor();
@@ -4077,7 +4082,7 @@ again:
     {
 	oap->start = start_pos;
 	oap->motion_type = MCHAR;
-	if (lt(end_pos, start_pos))
+	if (LT_POS(end_pos, start_pos))
 	{
 	    /* End is before the start: there is no text between tags; operate
 	     * on an empty area. */
@@ -4367,10 +4372,10 @@ current_quote(
 	if (VIsual.lnum != curwin->w_cursor.lnum)
 	    return FALSE;
 
-	vis_bef_curs = lt(VIsual, curwin->w_cursor);
+	vis_bef_curs = LT_POS(VIsual, curwin->w_cursor);
 	if (*p_sel == 'e' && vis_bef_curs)
 	    dec_cursor();
-	vis_empty = equalpos(VIsual, curwin->w_cursor);
+	vis_empty = EQUAL_POS(VIsual, curwin->w_cursor);
     }
 
     if (!vis_empty)
@@ -4500,11 +4505,11 @@ current_quote(
      * the starting quote. */
     if (include)
     {
-	if (vim_iswhite(line[col_end + 1]))
-	    while (vim_iswhite(line[col_end + 1]))
+	if (VIM_ISWHITE(line[col_end + 1]))
+	    while (VIM_ISWHITE(line[col_end + 1]))
 		++col_end;
 	else
-	    while (col_start > 0 && vim_iswhite(line[col_start - 1]))
+	    while (col_start > 0 && VIM_ISWHITE(line[col_start - 1]))
 		--col_start;
     }
 
@@ -4610,7 +4615,7 @@ current_search(
     p_ws = FALSE;
 
     /* Correct cursor when 'selection' is exclusive */
-    if (VIsual_active && *p_sel == 'e' && lt(VIsual, curwin->w_cursor))
+    if (VIsual_active && *p_sel == 'e' && LT_POS(VIsual, curwin->w_cursor))
 	dec_cursor();
 
     if (VIsual_active)
@@ -4673,12 +4678,14 @@ current_search(
 	}
 	else if (!i && !result)
 	{
-	    if (forward) /* try again from start of buffer */
+	    if (forward)
 	    {
-		clearpos(&pos);
+		/* try again from start of buffer */
+		CLEAR_POS(&pos);
 	    }
-	    else /* try again from end of buffer */
+	    else
 	    {
+		/* try again from end of buffer */
 		/* searching backwards, so set pos to last line and col */
 		pos.lnum = curwin->w_buffer->b_ml.ml_line_count;
 		pos.col  = (colnr_T)STRLEN(
@@ -4714,9 +4721,9 @@ current_search(
 	if (*p_sel == 'e')
 	{
 	    /* Correction for exclusive selection depends on the direction. */
-	    if (forward && ltoreq(VIsual, curwin->w_cursor))
+	    if (forward && LTOREQ_POS(VIsual, curwin->w_cursor))
 		inc_cursor();
-	    else if (!forward && ltoreq(curwin->w_cursor, VIsual))
+	    else if (!forward && LTOREQ_POS(curwin->w_cursor, VIsual))
 		inc(&VIsual);
 	}
 
@@ -4769,7 +4776,9 @@ is_one_char(char_u *pattern, int move)
     regmatch.startpos[0].col = -1;
     /* move to match */
     if (move)
-	clearpos(&pos)
+    {
+	CLEAR_POS(&pos);
+    }
     else
     {
 	pos = curwin->w_cursor;
diff --git a/src/spell.c b/src/spell.c
index f124ef21df..1700bba0e4 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -468,7 +468,7 @@ spell_check(
     {
 	do
 	{
-	    mb_ptr_adv(mi.mi_fend);
+	    MB_PTR_ADV(mi.mi_fend);
 	} while (*mi.mi_fend != NUL && spell_iswordp(mi.mi_fend, wp));
 
 	if (capcol != NULL && *capcol == 0 && wp->w_s->b_cap_prog != NULL)
@@ -494,7 +494,7 @@ spell_check(
     /* case-fold the word with one non-word character, so that we can check
      * for the word end. */
     if (*mi.mi_fend != NUL)
-	mb_ptr_adv(mi.mi_fend);
+	MB_PTR_ADV(mi.mi_fend);
 
     (void)spell_casefold(ptr, (int)(mi.mi_fend - ptr), mi.mi_fword,
 							     MAXWLEN + 1);
@@ -582,7 +582,7 @@ spell_check(
 	else if (mi.mi_end == ptr)
 	    /* Always include at least one character.  Required for when there
 	     * is a mixup in "midword". */
-	    mb_ptr_adv(mi.mi_end);
+	    MB_PTR_ADV(mi.mi_end);
 	else if (mi.mi_result == SP_BAD
 		&& LANGP_ENTRY(wp->w_s->b_langp, 0)->lp_slang->sl_nobreak)
 	{
@@ -598,8 +598,8 @@ spell_check(
 		fp = mi.mi_fword;
 		for (;;)
 		{
-		    mb_ptr_adv(p);
-		    mb_ptr_adv(fp);
+		    MB_PTR_ADV(p);
+		    MB_PTR_ADV(fp);
 		    if (p >= mi.mi_end)
 			break;
 		    mi.mi_compoff = (int)(fp - mi.mi_fword);
@@ -827,8 +827,8 @@ find_word(matchinf_T *mip, int mode)
 	    p = mip->mi_word;
 	    if (STRNCMP(ptr, p, wlen) != 0)
 	    {
-		for (s = ptr; s < ptr + wlen; mb_ptr_adv(s))
-		    mb_ptr_adv(p);
+		for (s = ptr; s < ptr + wlen; MB_PTR_ADV(s))
+		    MB_PTR_ADV(p);
 		wlen = (int)(p - mip->mi_word);
 	    }
 	}
@@ -952,8 +952,8 @@ find_word(matchinf_T *mip, int mode)
 		    {
 			/* case folding may have changed the length */
 			p = mip->mi_word;
-			for (s = ptr; s < ptr + mip->mi_compoff; mb_ptr_adv(s))
-			    mb_ptr_adv(p);
+			for (s = ptr; s < ptr + mip->mi_compoff; MB_PTR_ADV(s))
+			    MB_PTR_ADV(p);
 		    }
 		    else
 #endif
@@ -969,7 +969,7 @@ find_word(matchinf_T *mip, int mode)
 			 * character we do not accept a Onecap word.  We do
 			 * accept a no-caps word, even when the dictionary
 			 * word specifies ONECAP. */
-			mb_ptr_back(mip->mi_word, p);
+			MB_PTR_BACK(mip->mi_word, p);
 			if (spell_iswordp_nmw(p, mip->mi_win)
 				? capflags == WF_ONECAP
 				: (flags & WF_ONECAP) != 0
@@ -1038,8 +1038,8 @@ find_word(matchinf_T *mip, int mode)
 		    p = mip->mi_fword;
 		    if (STRNCMP(ptr, p, wlen) != 0)
 		    {
-			for (s = ptr; s < ptr + wlen; mb_ptr_adv(s))
-			    mb_ptr_adv(p);
+			for (s = ptr; s < ptr + wlen; MB_PTR_ADV(s))
+			    MB_PTR_ADV(p);
 			mip->mi_compoff = (int)(p - mip->mi_fword);
 		    }
 		}
@@ -1506,12 +1506,12 @@ fold_more(matchinf_T *mip)
     p = mip->mi_fend;
     do
     {
-	mb_ptr_adv(mip->mi_fend);
+	MB_PTR_ADV(mip->mi_fend);
     } while (*mip->mi_fend != NUL && spell_iswordp(mip->mi_fend, mip->mi_win));
 
     /* Include the non-word character so that we can check for the word end. */
     if (*mip->mi_fend != NUL)
-	mb_ptr_adv(mip->mi_fend);
+	MB_PTR_ADV(mip->mi_fend);
 
     (void)spell_casefold(p, (int)(mip->mi_fend - p),
 			     mip->mi_fword + mip->mi_fwordlen,
@@ -1603,7 +1603,7 @@ spell_move_to(
      * though...
      */
     lnum = wp->w_cursor.lnum;
-    clearpos(&found_pos);
+    CLEAR_POS(&found_pos);
 
     while (!got_int)
     {
@@ -2760,7 +2760,7 @@ captype(
     int		past_second = FALSE;	/* past second word char */
 
     /* find first letter */
-    for (p = word; !spell_iswordp_nmw(p, curwin); mb_ptr_adv(p))
+    for (p = word; !spell_iswordp_nmw(p, curwin); MB_PTR_ADV(p))
 	if (end == NULL ? *p == NUL : p >= end)
 	    return 0;	    /* only non-word characters, illegal word */
 #ifdef FEAT_MBYTE
@@ -2775,7 +2775,7 @@ captype(
      * Need to check all letters to find a word with mixed upper/lower.
      * But a word with an upper char only at start is a ONECAP.
      */
-    for ( ; end == NULL ? *p != NUL : p < end; mb_ptr_adv(p))
+    for ( ; end == NULL ? *p != NUL : p < end; MB_PTR_ADV(p))
 	if (spell_iswordp_nmw(p, curwin))
 	{
 	    c = PTR2CHAR(p);
@@ -2818,7 +2818,7 @@ badword_captype(char_u *word, char_u *end)
 	/* Count the number of UPPER and lower case letters. */
 	l = u = 0;
 	first = FALSE;
-	for (p = word; p < end; mb_ptr_adv(p))
+	for (p = word; p < end; MB_PTR_ADV(p))
 	{
 	    c = PTR2CHAR(p);
 	    if (SPELL_ISUPPER(c))
@@ -3385,10 +3385,10 @@ spell_suggest(int count)
 	p = line + curwin->w_cursor.col;
 	/* Backup to before start of word. */
 	while (p > line && spell_iswordp_nmw(p, curwin))
-	    mb_ptr_back(line, p);
+	    MB_PTR_BACK(line, p);
 	/* Forward to start of word. */
 	while (*p != NUL && !spell_iswordp_nmw(p, curwin))
-	    mb_ptr_adv(p);
+	    MB_PTR_ADV(p);
 
 	if (!spell_iswordp_nmw(p, curwin))		/* No word found. */
 	{
@@ -3624,7 +3624,7 @@ check_need_cap(linenr_T lnum, colnr_T col)
 	p = line + endcol;
 	for (;;)
 	{
-	    mb_ptr_back(line, p);
+	    MB_PTR_BACK(line, p);
 	    if (p == line || spell_iswordp_nmw(p, curwin))
 		break;
 	    if (vim_regexec(&regmatch, p, 0)
@@ -4528,7 +4528,7 @@ suggest_trie_walk(
 
 	    fword_ends = (fword[sp->ts_fidx] == NUL
 			   || (soundfold
-			       ? vim_iswhite(fword[sp->ts_fidx])
+			       ? VIM_ISWHITE(fword[sp->ts_fidx])
 			       : !spell_iswordp(fword + sp->ts_fidx, curwin)));
 	    tword[sp->ts_twordlen] = NUL;
 
@@ -4644,7 +4644,7 @@ suggest_trie_walk(
 
 		    /* Get pointer to last char of previous word. */
 		    p = preword + sp->ts_prewordlen;
-		    mb_ptr_back(preword, p);
+		    MB_PTR_BACK(preword, p);
 		}
 	    }
 
@@ -4746,11 +4746,11 @@ suggest_trie_walk(
 		    /* Give a penalty when changing non-word char to word
 		     * char, e.g., "thes," -> "these". */
 		    p = fword + sp->ts_fidx;
-		    mb_ptr_back(fword, p);
+		    MB_PTR_BACK(fword, p);
 		    if (!spell_iswordp(p, curwin))
 		    {
 			p = preword + STRLEN(preword);
-			mb_ptr_back(preword, p);
+			MB_PTR_BACK(preword, p);
 			if (spell_iswordp(p, curwin))
 			    newscore += SCORE_NONWORD;
 		    }
@@ -5157,7 +5157,7 @@ suggest_trie_walk(
 				     * to the score.  Also for the soundfold
 				     * tree (might seem illogical but does
 				     * give better scores). */
-				    mb_ptr_back(tword, p);
+				    MB_PTR_BACK(tword, p);
 				    if (c == mb_ptr2char(p))
 					sp->ts_score -= SCORE_INS
 							       - SCORE_INSDUP;
@@ -5867,9 +5867,9 @@ nofold_len(char_u *fword, int flen, char_u *word)
     char_u	*p;
     int		i = 0;
 
-    for (p = fword; p < fword + flen; mb_ptr_adv(p))
+    for (p = fword; p < fword + flen; MB_PTR_ADV(p))
 	++i;
-    for (p = word; i > 0; mb_ptr_adv(p))
+    for (p = word; i > 0; MB_PTR_ADV(p))
 	--i;
     return (int)(p - word);
 }
@@ -6231,7 +6231,7 @@ stp_sal_score(
 	 * sounds like "t h" while "the" sounds like "@".  Avoid that by
 	 * removing the space.  Don't do it when the good word also contains a
 	 * space. */
-	if (vim_iswhite(su->su_badptr[su->su_badlen])
+	if (VIM_ISWHITE(su->su_badptr[su->su_badlen])
 					 && *skiptowhite(stp->st_word) == NUL)
 	    for (p = fword; *(p = skiptowhite(p)) != NUL; )
 		STRMOVE(p, p + 1);
@@ -6745,8 +6745,8 @@ add_suggestion(
 	badlen = (int)(pbad - su->su_badptr);
 	if (goodlen <= 0 || badlen <= 0)
 	    break;
-	mb_ptr_back(goodword, pgood);
-	mb_ptr_back(su->su_badptr, pbad);
+	MB_PTR_BACK(goodword, pgood);
+	MB_PTR_BACK(su->su_badptr, pbad);
 #ifdef FEAT_MBYTE
 	if (has_mbyte)
 	{
@@ -7106,7 +7106,7 @@ spell_soundfold_sofo(slang_T *slang, char_u *inword, char_u *res)
 	for (s = inword; *s != NUL; )
 	{
 	    c = mb_cptr2char_adv(&s);
-	    if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c))
+	    if (enc_utf8 ? utf_class(c) == 0 : VIM_ISWHITE(c))
 		c = ' ';
 	    else if (c < 256)
 		c = slang->sl_sal_first[c];
@@ -7147,7 +7147,7 @@ spell_soundfold_sofo(slang_T *slang, char_u *inword, char_u *res)
 	/* The sl_sal_first[] table contains the translation. */
 	for (s = inword; (c = *s) != NUL; ++s)
 	{
-	    if (vim_iswhite(c))
+	    if (VIM_ISWHITE(c))
 		c = ' ';
 	    else
 		c = slang->sl_sal_first[c];
@@ -7185,7 +7185,7 @@ spell_soundfold_sal(slang_T *slang, char_u *inword, char_u *res)
 	t = word;
 	while (*s != NUL)
 	{
-	    if (vim_iswhite(*s))
+	    if (VIM_ISWHITE(*s))
 	    {
 		*t++ = ' ';
 		s = skipwhite(s);
@@ -7409,7 +7409,7 @@ spell_soundfold_sal(slang_T *slang, char_u *inword, char_u *res)
 		}
 	    }
 	}
-	else if (vim_iswhite(c))
+	else if (VIM_ISWHITE(c))
 	{
 	    c = ' ';
 	    k = 1;
@@ -7474,7 +7474,7 @@ spell_soundfold_wsal(slang_T *slang, char_u *inword, char_u *res)
 	c = mb_cptr2char_adv(&s);
 	if (slang->sl_rem_accents)
 	{
-	    if (enc_utf8 ? utf_class(c) == 0 : vim_iswhite(c))
+	    if (enc_utf8 ? utf_class(c) == 0 : VIM_ISWHITE(c))
 	    {
 		if (did_white)
 		    continue;
@@ -7715,7 +7715,7 @@ spell_soundfold_wsal(slang_T *slang, char_u *inword, char_u *res)
 		}
 	    }
 	}
-	else if (vim_iswhite(c))
+	else if (VIM_ISWHITE(c))
 	{
 	    c = ' ';
 	    k = 1;
@@ -8545,7 +8545,7 @@ ex_spelldump(exarg_T *eap)
     set_option_value((char_u*)"spl",  dummy, spl, OPT_LOCAL);
     vim_free(spl);
 
-    if (!bufempty())
+    if (!BUFEMPTY())
 	return;
 
     spell_dump_compl(NULL, 0, NULL, eap->forceit ? DUMPFLAG_COUNT : 0);
@@ -8976,7 +8976,7 @@ spell_to_word_end(char_u *start, win_T *win)
     char_u  *p = start;
 
     while (*p != NUL && spell_iswordp(p, win))
-	mb_ptr_adv(p);
+	MB_PTR_ADV(p);
     return p;
 }
 
@@ -9002,7 +9002,7 @@ spell_word_start(int startcol)
     line = ml_get_curline();
     for (p = line + startcol; p > line; )
     {
-	mb_ptr_back(line, p);
+	MB_PTR_BACK(line, p);
 	if (spell_iswordp_nmw(p, curwin))
 	    break;
     }
@@ -9011,7 +9011,7 @@ spell_word_start(int startcol)
     while (p > line)
     {
 	col = (int)(p - line);
-	mb_ptr_back(line, p);
+	MB_PTR_BACK(line, p);
 	if (!spell_iswordp(p, curwin))
 	    break;
 	col = 0;
diff --git a/src/spellfile.c b/src/spellfile.c
index 00ef019a6a..6188aaf40c 100644
--- a/src/spellfile.c
+++ b/src/spellfile.c
@@ -1429,7 +1429,7 @@ set_sofo(slang_T *lp, char_u *from, char_u *to)
 	for (p = from, s = to; *p != NUL && *s != NUL; )
 	{
 	    c = mb_cptr2char_adv(&p);
-	    mb_cptr_adv(s);
+	    MB_CPTR_ADV(s);
 	    if (c >= 256)
 		++lp->sl_sal_first[c & 0xff];
 	}
@@ -2802,7 +2802,7 @@ spell_read_aff(spellinfo_T *spin, char_u *fname)
 			    {
 				p = aff_entry->ae_add
 						  + STRLEN(aff_entry->ae_add);
-				mb_ptr_back(aff_entry->ae_add, p);
+				MB_PTR_BACK(aff_entry->ae_add, p);
 				if (PTR2CHAR(p) == c_up)
 				{
 				    upper = TRUE;
@@ -2930,10 +2930,10 @@ spell_read_aff(spellinfo_T *spin, char_u *fname)
 		{
 		    /* Replace underscore with space (can't include a space
 		     * directly). */
-		    for (p = items[1]; *p != NUL; mb_ptr_adv(p))
+		    for (p = items[1]; *p != NUL; MB_PTR_ADV(p))
 			if (*p == '_')
 			    *p = ' ';
-		    for (p = items[2]; *p != NUL; mb_ptr_adv(p))
+		    for (p = items[2]; *p != NUL; MB_PTR_ADV(p))
 			if (*p == '_')
 			    *p = ' ';
 		    add_fromto(spin, items[0][3] == 'S'
@@ -3624,7 +3624,7 @@ spell_read_dic(spellinfo_T *spin, char_u *fname, afffile_T *affile)
 	/* Truncate the word at the "/", set "afflist" to what follows.
 	 * Replace "\/" by "/" and "\\" by "\". */
 	afflist = NULL;
-	for (p = w; *p != NUL; mb_ptr_adv(p))
+	for (p = w; *p != NUL; MB_PTR_ADV(p))
 	{
 	    if (*p == '\\' && (p[1] == '\\' || p[1] == '/'))
 		STRMOVE(p, p + 1);
@@ -3947,7 +3947,7 @@ store_aff_word(
 				{
 				    i = mb_charlen(ae->ae_chop);
 				    for ( ; i > 0; --i)
-					mb_ptr_adv(p);
+					MB_PTR_ADV(p);
 				}
 				else
 #endif
@@ -3965,7 +3965,7 @@ store_aff_word(
 				p = newword + STRLEN(newword);
 				i = (int)MB_CHARLEN(ae->ae_chop);
 				for ( ; i > 0; --i)
-				    mb_ptr_back(newword, p);
+				    MB_PTR_BACK(newword, p);
 				*p = NUL;
 			    }
 			    if (ae->ae_add != NULL)
diff --git a/src/syntax.c b/src/syntax.c
index da8c08f82c..bc87a0f83b 100644
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -2308,7 +2308,7 @@ syn_current_attr(
 	    {
 		line = syn_getcurline();
 		if (((current_next_flags & HL_SKIPWHITE)
-			    && vim_iswhite(line[current_col]))
+			    && VIM_ISWHITE(line[current_col]))
 			|| ((current_next_flags & HL_SKIPEMPTY)
 			    && *line == NUL))
 		    break;
@@ -3211,12 +3211,12 @@ syn_add_end_off(
 	if (off > 0)
 	{
 	    while (off-- > 0 && *p != NUL)
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 	}
 	else if (off < 0)
 	{
 	    while (off++ < 0 && base < p)
-		mb_ptr_back(base, p);
+		MB_PTR_BACK(base, p);
 	}
 	col = (int)(p - base);
     }
@@ -3265,12 +3265,12 @@ syn_add_start_off(
 	if (off > 0)
 	{
 	    while (off-- && *p != NUL)
-		mb_ptr_adv(p);
+		MB_PTR_ADV(p);
 	}
 	else if (off < 0)
 	{
 	    while (off++ && base < p)
-		mb_ptr_back(base, p);
+		MB_PTR_BACK(base, p);
 	}
 	col = (int)(p - base);
     }
@@ -4631,7 +4631,7 @@ get_syn_options(
 	    for (i = 0, len = 0; p[i] != NUL; i += 2, ++len)
 		if (arg[len] != p[i] && arg[len] != p[i + 1])
 		    break;
-	    if (p[i] == NUL && (vim_iswhite(arg[len])
+	    if (p[i] == NUL && (VIM_ISWHITE(arg[len])
 				    || (flagtab[fidx].argtype > 0
 					 ? arg[len] == '='
 					 : ends_excmd(arg[len]))))
@@ -4905,7 +4905,7 @@ syn_cmd_keyword(exarg_T *eap, int syncing UNUSED)
 		if (rest == NULL || ends_excmd(*rest))
 		    break;
 		/* Copy the keyword, removing backslashes, and add a NUL. */
-		while (*rest != NUL && !vim_iswhite(*rest))
+		while (*rest != NUL && !VIM_ISWHITE(*rest))
 		{
 		    if (*rest == '\\' && rest[1] != NUL)
 			++rest;
@@ -5156,7 +5156,7 @@ syn_cmd_region(
 
 	/* must be a pattern or matchgroup then */
 	key_end = rest;
-	while (*key_end && !vim_iswhite(*key_end) && *key_end != '=')
+	while (*key_end && !VIM_ISWHITE(*key_end) && *key_end != '=')
 	    ++key_end;
 	vim_free(key);
 	key = vim_strnsave_up(rest, (int)(key_end - rest));
@@ -5640,19 +5640,19 @@ syn_cmd_cluster(exarg_T *eap, int syncing UNUSED)
 	for (;;)
 	{
 	    if (STRNICMP(rest, "add", 3) == 0
-		    && (vim_iswhite(rest[3]) || rest[3] == '='))
+		    && (VIM_ISWHITE(rest[3]) || rest[3] == '='))
 	    {
 		opt_len = 3;
 		list_op = CLUSTER_ADD;
 	    }
 	    else if (STRNICMP(rest, "remove", 6) == 0
-		    && (vim_iswhite(rest[6]) || rest[6] == '='))
+		    && (VIM_ISWHITE(rest[6]) || rest[6] == '='))
 	    {
 		opt_len = 6;
 		list_op = CLUSTER_SUBTRACT;
 	    }
 	    else if (STRNICMP(rest, "contains", 8) == 0
-			&& (vim_iswhite(rest[8]) || rest[8] == '='))
+			&& (VIM_ISWHITE(rest[8]) || rest[8] == '='))
 	    {
 		opt_len = 8;
 		list_op = CLUSTER_REPLACE;
@@ -5793,7 +5793,7 @@ get_syn_pattern(char_u *arg, synpat_T *ci)
 	}
     } while (idx >= 0);
 
-    if (!ends_excmd(*end) && !vim_iswhite(*end))
+    if (!ends_excmd(*end) && !VIM_ISWHITE(*end))
     {
 	EMSG2(_("E402: Garbage after pattern: %s"), arg);
 	return NULL;
@@ -6014,7 +6014,7 @@ get_id_list(
 	count = 0;
 	while (!ends_excmd(*p))
 	{
-	    for (end = p; *end && !vim_iswhite(*end) && *end != ','; ++end)
+	    for (end = p; *end && !VIM_ISWHITE(*end) && *end != ','; ++end)
 		;
 	    name = alloc((int)(end - p + 3));	    /* leave room for "^$" */
 	    if (name == NULL)
@@ -7467,7 +7467,7 @@ do_highlight(
 	 * Isolate the key ("term", "ctermfg", "ctermbg", "font", "guifg" or
 	 * "guibg").
 	 */
-	while (*linep && !vim_iswhite(*linep) && *linep != '=')
+	while (*linep && !VIM_ISWHITE(*linep) && *linep != '=')
 	    ++linep;
 	vim_free(key);
 	key = vim_strnsave_up(key_start, (int)(linep - key_start));
@@ -8170,7 +8170,7 @@ hl_has_settings(int idx, int check_link)
 	    || HL_TABLE()[idx].sg_gui_fg_name != NULL
 	    || HL_TABLE()[idx].sg_gui_bg_name != NULL
 	    || HL_TABLE()[idx].sg_gui_sp_name != NULL
-	    || HL_TABLE()[idx].sg_font_name != NUL
+	    || HL_TABLE()[idx].sg_font_name != NULL
 #endif
 	    || (check_link && (HL_TABLE()[idx].sg_set & SG_LINK)));
 }
@@ -9722,7 +9722,7 @@ highlight_changed(void)
 	    attr = 0;
 	    for ( ; *p && *p != ','; ++p)	    /* parse upto comma */
 	    {
-		if (vim_iswhite(*p))		    /* ignore white space */
+		if (VIM_ISWHITE(*p))		    /* ignore white space */
 		    continue;
 
 		if (attr > HL_ALL)  /* Combination with ':' is not allowed. */
diff --git a/src/tag.c b/src/tag.c
index 8621419db9..af6196182c 100644
--- a/src/tag.c
+++ b/src/tag.c
@@ -178,7 +178,7 @@ do_tag(
     free_string_option(nofile_fname);
     nofile_fname = NULL;
 
-    clearpos(&saved_fmark.mark);	/* shutup gcc 4.0 */
+    CLEAR_POS(&saved_fmark.mark);	/* shutup gcc 4.0 */
     saved_fmark.fnum = 0;
 
     /*
@@ -2005,7 +2005,7 @@ parse_line:
 #endif
 			if (	   fnamencmp(lbuf, tagp.fname, p - lbuf) == 0
 #ifdef FEAT_TAG_ANYWHITE
-				&& vim_iswhite(tagp.fname[p - lbuf])
+				&& VIM_ISWHITE(tagp.fname[p - lbuf])
 #else
 				&& tagp.fname[p - lbuf] == TAB
 #endif
@@ -3544,7 +3544,7 @@ simplify_filename(char_u *filename)
 		tail = p + 1;
 		if (p[1] != NUL)
 		    while (vim_ispathsep(*tail))
-			mb_ptr_adv(tail);
+			MB_PTR_ADV(tail);
 		else if (p > start)
 		    --p;		/* strip preceding path separator */
 		STRMOVE(p, tail);
@@ -3556,7 +3556,7 @@ simplify_filename(char_u *filename)
 	    /* Skip to after ".." or "../" or "..///". */
 	    tail = p + 2;
 	    while (vim_ispathsep(*tail))
-		mb_ptr_adv(tail);
+		MB_PTR_ADV(tail);
 
 	    if (components > 0)		/* strip one preceding component */
 	    {
@@ -3583,7 +3583,7 @@ simplify_filename(char_u *filename)
 		    --p;
 		    /* Skip back to after previous '/'. */
 		    while (p > start && !after_pathsep(start, p))
-			mb_ptr_back(start, p);
+			MB_PTR_BACK(start, p);
 
 		    if (!do_strip)
 		    {
@@ -3932,7 +3932,7 @@ get_tags(list_T *list, char_u *pat)
 		    else if (STRNCMP(p, "file:", 5) == 0)
 			/* skip "file:" (static tag) */
 			p += 4;
-		    else if (!vim_iswhite(*p))
+		    else if (!VIM_ISWHITE(*p))
 		    {
 			char_u	*s, *n;
 			int	len;
diff --git a/src/testdir/Make_dos.mak b/src/testdir/Make_dos.mak
index 0e7b461d77..f9d21a5fa8 100644
--- a/src/testdir/Make_dos.mak
+++ b/src/testdir/Make_dos.mak
@@ -126,7 +126,7 @@ test_gui.res: test_gui.vim
 
 test_gui_init.res: test_gui_init.vim
 	@echo "$(VIMPROG)" > vimcmd
-	$(VIMPROG) -u NONE -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $*.vim
+	$(VIMPROG) -u gui_preinit.vim -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $*.vim
 	@del vimcmd
 
 opt_test.vim: ../option.c gen_opt_test.vim
diff --git a/src/testdir/Make_ming.mak b/src/testdir/Make_ming.mak
index ad4697d723..7e13c0f787 100644
--- a/src/testdir/Make_ming.mak
+++ b/src/testdir/Make_ming.mak
@@ -129,7 +129,7 @@ test_gui.res: test_gui.vim
 
 test_gui_init.res: test_gui_init.vim
 	@echo "$(VIMPROG)" > vimcmd
-	$(VIMPROG) -u NONE -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $<
+	$(VIMPROG) -u gui_preinit_vim -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $<
 	@$(DEL) vimcmd
 
 opt_test.vim: ../option.c gen_opt_test.vim
diff --git a/src/testdir/Makefile b/src/testdir/Makefile
index ca8597fe73..ce1c24cd68 100644
--- a/src/testdir/Makefile
+++ b/src/testdir/Makefile
@@ -138,7 +138,7 @@ test_gui.res: test_gui.vim
 
 test_gui_init.res: test_gui_init.vim
 	@echo "$(RUN_GVIMTEST_WITH_GVIMRC)" > vimcmd
-	$(RUN_VIMTEST) -u NONE -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $<
+	$(RUN_VIMTEST) -u gui_preinit.vim -U gui_init.vim $(NO_PLUGINS) -S runtest.vim $<
 	@rm vimcmd
 
 opt_test.vim: ../option.c gen_opt_test.vim
diff --git a/src/testdir/gui_init.vim b/src/testdir/gui_init.vim
index bc5e33cb2a..42b2bca7fe 100644
--- a/src/testdir/gui_init.vim
+++ b/src/testdir/gui_init.vim
@@ -2,4 +2,5 @@
 
 if has('gui_athena') || has('gui_motif') || has('gui_gtk2') || has('gui_gtk3')
   set guiheadroom=0
+  set guioptions+=p
 endif
diff --git a/src/testdir/gui_preinit.vim b/src/testdir/gui_preinit.vim
new file mode 100644
index 0000000000..c351b72461
--- /dev/null
+++ b/src/testdir/gui_preinit.vim
@@ -0,0 +1,7 @@
+" vimrc for test_gui_init.vim
+
+" Note that this flag must be added in the .vimrc file, before switching on
+" syntax or filetype recognition (when the |gvimrc| file is sourced the system
+" menu has already been loaded; the ":syntax on" and ":filetype on" commands
+" load the menu too).
+set guioptions+=M
diff --git a/src/testdir/test_alot_utf8.vim b/src/testdir/test_alot_utf8.vim
index 3022da3348..13724cbd4a 100644
--- a/src/testdir/test_alot_utf8.vim
+++ b/src/testdir/test_alot_utf8.vim
@@ -6,6 +6,7 @@
 " files, so that they can be run by themselves.
 
 set belloff=all
+source test_charsearch_utf8.vim
 source test_expr_utf8.vim
 source test_matchadd_conceal_utf8.vim
 source test_regexp_utf8.vim
diff --git a/src/testdir/test_charsearch_utf8.vim b/src/testdir/test_charsearch_utf8.vim
new file mode 100644
index 0000000000..b700a8c756
--- /dev/null
+++ b/src/testdir/test_charsearch_utf8.vim
@@ -0,0 +1,44 @@
+" Tests for related f{char} and t{char} using utf-8.
+if !has('multi_byte')
+  finish
+endif
+
+" Test for t,f,F,T movement commands
+function! Test_search_cmds()
+  new!
+  call setline(1, "・最初から最後まで最強のVimは最高")
+  1
+  normal! f最
+  call assert_equal([0, 1, 4, 0], getpos('.'))
+  normal! ;
+  call assert_equal([0, 1, 16, 0], getpos('.'))
+  normal! 2;
+  call assert_equal([0, 1, 43, 0], getpos('.'))
+  normal! ,
+  call assert_equal([0, 1, 28, 0], getpos('.'))
+  bw!
+endfunction
+
+" vim: shiftwidth=2 sts=2 expandtab
+" Tests for related f{char} and t{char} using utf-8.
+if !has('multi_byte')
+  finish
+endif
+
+" Test for t,f,F,T movement commands
+function! Test_search_cmds()
+  new!
+  call setline(1, "・最初から最後まで最強のVimは最高")
+  1
+  normal! f最
+  call assert_equal([0, 1, 4, 0], getpos('.'))
+  normal! ;
+  call assert_equal([0, 1, 16, 0], getpos('.'))
+  normal! 2;
+  call assert_equal([0, 1, 43, 0], getpos('.'))
+  normal! ,
+  call assert_equal([0, 1, 28, 0], getpos('.'))
+  bw!
+endfunction
+
+" vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/testdir/test_fold.vim b/src/testdir/test_fold.vim
index 3c27f4f700..f10480bb4f 100644
--- a/src/testdir/test_fold.vim
+++ b/src/testdir/test_fold.vim
@@ -168,6 +168,22 @@ func Test_combining_folds_marker()
   bwipe!
 endfunc
 
+func Test_folds_marker_in_comment()
+  new
+  call setline(1, ['" foo', 'bar', 'baz'])
+  setl fen fdm=marker
+  setl com=sO:\"\ -,mO:\"\ \ ,eO:\"\",:\" cms=\"%s
+  norm! zf2j
+  setl nofen
+  :1y
+  call assert_equal(['" foo{{{'], getreg(0,1,1))
+  :+2y
+  call assert_equal(['baz"}}}'], getreg(0,1,1))
+
+  set foldmethod&
+  bwipe!
+endfunc
+
 func s:TestFoldExpr(lnum)
   let thisline = getline(a:lnum)
   if thisline == 'a'
diff --git a/src/testdir/test_gui.vim b/src/testdir/test_gui.vim
index 7d39a1d40d..3e06eab344 100644
--- a/src/testdir/test_gui.vim
+++ b/src/testdir/test_gui.vim
@@ -30,6 +30,18 @@ func Test_balloon_show()
   endif
 endfunc
 
+func Test_colorscheme()
+  let colorscheme_saved = exists('g:colors_name') ? g:colors_name : 'default'
+
+  colorscheme torte
+  redraw!
+  sleep 200m
+  call assert_equal('dark', &background)
+
+  exec 'colorscheme' colorscheme_saved
+  redraw!
+endfunc
+
 func Test_getfontname_with_arg()
   let skipped = ''
 
@@ -40,8 +52,8 @@ func Test_getfontname_with_arg()
     call assert_equal('', getfontname('notexist'))
 
     " Valid font name. This is usually the real name of 7x13 by default.
-    let fname = '-misc-fixed-medium-r-normal--13-120-75-75-c-70-iso8859-1'
-    call assert_equal(fname, getfontname(fname))
+    let fname = '-Misc-Fixed-Medium-R-Normal--13-120-75-75-C-70-ISO8859-1'
+    call assert_match(fname, getfontname(fname))
 
   elseif has('gui_gtk2') || has('gui_gnome') || has('gui_gtk3')
     " Invalid font name. The result should be the name plus the default size.
@@ -68,8 +80,9 @@ func Test_getfontname_without_arg()
     " 'expected' is the value specified by SetUp() above.
     call assert_equal('Courier 10 Pitch/8/-1/5/50/0/0/0/0/0', fname)
   elseif has('gui_athena') || has('gui_motif')
-    " 'expected' is DFLT_FONT of gui_x11.c.
-    call assert_equal('7x13', fname)
+    " 'expected' is DFLT_FONT of gui_x11.c or its real name.
+    let pat = '\(7x13\)\|\(\c-Misc-Fixed-Medium-R-Normal--13-120-75-75-C-70-ISO8859-1\)'
+    call assert_match(pat, fname)
   elseif has('gui_gtk2') || has('gui_gnome') || has('gui_gtk3')
     " 'expected' is DEFAULT_FONT of gui_gtk_x11.c.
     call assert_equal('Monospace 10', fname)
@@ -80,6 +93,12 @@ func Test_getfontname_without_arg()
   endif
 endfunc
 
+func Test_getwinpos()
+  call assert_match('Window position: X \d\+, Y \d\+', execute('winpos'))
+  call assert_true(getwinposx() >= 0)
+  call assert_true(getwinposy() >= 0)
+endfunc
+
 func Test_quoteplus()
   let skipped = ''
 
@@ -125,6 +144,18 @@ func Test_quoteplus()
   endif
 endfunc
 
+func Test_set_background()
+  let background_saved = &background
+
+  set background&
+  call assert_equal('light', &background)
+
+  set background=dark
+  call assert_equal('dark', &background)
+
+  let &background = background_saved
+endfunc
+
 func Test_set_balloondelay()
   if !exists('+balloondelay')
     return
@@ -248,6 +279,46 @@ func Test_set_balloonexpr()
   let &balloonexpr = balloonexpr_saved
 endfunc
 
+" Invalid arguments are tested with test_options in conjunction with segfaults
+" caused by them (Patch 8.0.0357, 24922ec233).
+func Test_set_guicursor()
+  let guicursor_saved = &guicursor
+
+  let default = [
+        \ "n-v-c:block-Cursor/lCursor",
+        \ "ve:ver35-Cursor",
+        \ "o:hor50-Cursor",
+        \ "i-ci:ver25-Cursor/lCursor",
+        \ "r-cr:hor20-Cursor/lCursor",
+        \ "sm:block-Cursor-blinkwait175-blinkoff150-blinkon175"
+        \ ]
+
+  " Default Value
+  set guicursor&
+  call assert_equal(join(default, ','), &guicursor)
+
+  " Argument List Example 1
+  let opt_list = copy(default)
+  let opt_list[0] = "n-c-v:block-nCursor"
+  exec "set guicursor=" . join(opt_list, ',')
+  call assert_equal(join(opt_list, ','), &guicursor)
+  unlet opt_list
+
+  " Argument List Example 2
+  let opt_list = copy(default)
+  let opt_list[3] = "i-ci:ver30-iCursor-blinkwait300-blinkon200-blinkoff150"
+  exec "set guicursor=" . join(opt_list, ',')
+  call assert_equal(join(opt_list, ','), &guicursor)
+  unlet opt_list
+
+  " 'a' Mode
+  set guicursor&
+  let &guicursor .= ',a:blinkon0'
+  call assert_equal(join(default, ',') . ",a:blinkon0", &guicursor)
+
+  let &guicursor = guicursor_saved
+endfunc
+
 func Test_set_guifont()
   let skipped = ''
 
@@ -274,11 +345,13 @@ func Test_set_guifont()
     " Non-empty font list with a valid font name.  Should pick up the first
     " valid font.
     set guifont=-notexist1-*,fixed,-notexist2-*
-    call assert_equal('fixed', getfontname())
+    let pat = '\(fixed\)\|\(\c-Misc-Fixed-Medium-R-SemiCondensed--13-120-75-75-C-60-ISO8859-1\)'
+    call assert_match(pat, getfontname())
 
     " Empty list. Should fallback to the built-in default.
     set guifont=
-    call assert_equal('7x13', getfontname())
+    let pat = '\(7x13\)\|\(\c-Misc-Fixed-Medium-R-Normal--13-120-75-75-C-70-ISO8859-1\)'
+    call assert_match(pat, getfontname())
 
   elseif has('gui_gtk2') || has('gui_gnome') || has('gui_gtk3')
     " For GTK, what we refer to as 'font names' in our manual are actually
@@ -477,10 +550,120 @@ func Test_set_guiheadroom()
   endif
 endfunc
 
-func Test_getwinpos()
-  call assert_match('Window position: X \d\+, Y \d\+', execute('winpos'))
-  call assert_true(getwinposx() >= 0)
-  call assert_true(getwinposy() >= 0)
+func Test_set_guioptions()
+  let guioptions_saved = &guioptions
+  let duration = '200m'
+
+  if has('win32')
+    " Default Value
+    set guioptions&
+    call assert_equal('egmrLtT', &guioptions)
+
+  else
+    " Default Value
+    set guioptions&
+    call assert_equal('aegimrLtT', &guioptions)
+
+    " To activate scrollbars of type 'L' or 'R'.
+    wincmd v
+    redraw!
+
+    " Remove all default GUI ornaments
+    set guioptions-=T
+    exec 'sleep' . duration
+    call assert_equal('aegimrLt', &guioptions)
+    set guioptions-=t
+    exec 'sleep' . duration
+    call assert_equal('aegimrL', &guioptions)
+    set guioptions-=L
+    exec 'sleep' . duration
+    call assert_equal('aegimr', &guioptions)
+    set guioptions-=r
+    exec 'sleep' . duration
+    call assert_equal('aegim', &guioptions)
+    set guioptions-=m
+    exec 'sleep' . duration
+    call assert_equal('aegi', &guioptions)
+
+    " Try non-default GUI ornaments
+    set guioptions+=l
+    exec 'sleep' . duration
+    call assert_equal('aegil', &guioptions)
+    set guioptions-=l
+    exec 'sleep' . duration
+    call assert_equal('aegi', &guioptions)
+
+    set guioptions+=R
+    exec 'sleep' . duration
+    call assert_equal('aegiR', &guioptions)
+    set guioptions-=R
+    exec 'sleep' . duration
+    call assert_equal('aegi', &guioptions)
+
+    set guioptions+=b
+    exec 'sleep' . duration
+    call assert_equal('aegib', &guioptions)
+    set guioptions+=h
+    exec 'sleep' . duration
+    call assert_equal('aegibh', &guioptions)
+    set guioptions-=h
+    exec 'sleep' . duration
+    call assert_equal('aegib', &guioptions)
+    set guioptions-=b
+    exec 'sleep' . duration
+    call assert_equal('aegi', &guioptions)
+
+    set guioptions+=v
+    exec 'sleep' . duration
+    call assert_equal('aegiv', &guioptions)
+    set guioptions-=v
+    exec 'sleep' . duration
+    call assert_equal('aegi', &guioptions)
+
+    if has('gui_motif')
+      set guioptions+=F
+      exec 'sleep' . duration
+      call assert_equal('aegiF', &guioptions)
+      set guioptions-=F
+      exec 'sleep' . duration
+      call assert_equal('aegi', &guioptions)
+    endif
+
+    " Restore GUI ornaments to the default state.
+    set guioptions+=m
+    exec 'sleep' . duration
+    call assert_equal('aegim', &guioptions)
+    set guioptions+=r
+    exec 'sleep' . duration
+    call assert_equal('aegimr', &guioptions)
+    set guioptions+=L
+    exec 'sleep' . duration
+    call assert_equal('aegimrL', &guioptions)
+    set guioptions+=t
+    exec 'sleep' . duration
+    call assert_equal('aegimrLt', &guioptions)
+    set guioptions+=T
+    exec 'sleep' . duration
+    call assert_equal("aegimrLtT", &guioptions)
+
+    wincmd o
+    redraw!
+  endif
+
+  let &guioptions = guioptions_saved
+endfunc
+
+func Test_set_guipty()
+  let guipty_saved = &guipty
+
+  " Default Value
+  set guipty&
+  call assert_equal(1, &guipty)
+
+  set noguipty
+  call assert_equal(0, &guipty)
+
+  let &guipty = guipty_saved
 endfunc
 
 func Test_shell_command()
@@ -490,6 +673,19 @@ func Test_shell_command()
   bwipe!
 endfunc
 
+func Test_syntax_colortest()
+  runtime syntax/colortest.vim
+  redraw!
+  sleep 200m
+  bwipe!
+endfunc
+
+func Test_set_term()
+  " It's enough to check the current value since setting 'term' to anything
+  " other than builtin_gui makes no sense at all.
+  call assert_equal('builtin_gui', &term)
+endfunc
+
 func Test_windowid_variable()
   if g:x11_based_gui || has('win32')
     call assert_true(v:windowid > 0)
diff --git a/src/testdir/test_gui_init.vim b/src/testdir/test_gui_init.vim
index 811c6ecb23..21e5bb6a7a 100644
--- a/src/testdir/test_gui_init.vim
+++ b/src/testdir/test_gui_init.vim
@@ -36,3 +36,25 @@ func Test_set_guiheadroom()
     throw skipped
   endif
 endfunc
+
+func Test_set_guioptions_for_M()
+  sleep 200ms
+  " Check if the 'M' option is included.
+  call assert_match('.*M.*', &guioptions)
+endfunc
+
+func Test_set_guioptions_for_p()
+  let skipped = ''
+
+  if !g:x11_based_gui
+    let skipped = g:not_supported . '''p'' of guioptions'
+  else
+    sleep 200ms
+    " Check if the 'p' option is included.
+    call assert_match('.*p.*', &guioptions)
+  endif
+
+  if !empty(skipped)
+    throw skipped
+  endif
+endfunc
diff --git a/src/ui.c b/src/ui.c
index 6ffd4be026..1f5a34a868 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -458,7 +458,7 @@ clip_update_selection(VimClipboard *clip)
     /* If visual mode is only due to a redo command ("."), then ignore it */
     if (!redo_VIsual_busy && VIsual_active && (State & NORMAL))
     {
-	if (lt(VIsual, curwin->w_cursor))
+	if (LT_POS(VIsual, curwin->w_cursor))
 	{
 	    start = VIsual;
 	    end = curwin->w_cursor;
@@ -472,8 +472,8 @@ clip_update_selection(VimClipboard *clip)
 	    start = curwin->w_cursor;
 	    end = VIsual;
 	}
-	if (!equalpos(clip->start, start)
-		|| !equalpos(clip->end, end)
+	if (!EQUAL_POS(clip->start, start)
+		|| !EQUAL_POS(clip->end, end)
 		|| clip->vmode != VIsual_mode)
 	{
 	    clip_clear_selection(clip);
@@ -3213,7 +3213,7 @@ vcol2col(win_T *wp, linenr_T lnum, int vcol)
     while (count < vcol && *ptr != NUL)
     {
 	count += win_lbr_chartabsize(wp, line, ptr, count, NULL);
-	mb_ptr_adv(ptr);
+	MB_PTR_ADV(ptr);
     }
     return (int)(ptr - line);
 }
diff --git a/src/undo.c b/src/undo.c
index a985b0145b..1474bcce05 100644
--- a/src/undo.c
+++ b/src/undo.c
@@ -833,7 +833,7 @@ u_get_undo_file_name(char_u *buf_ffname, int reading)
 		    munged_name = vim_strsave(ffname);
 		    if (munged_name == NULL)
 			return NULL;
-		    for (p = munged_name; *p != NUL; mb_ptr_adv(p))
+		    for (p = munged_name; *p != NUL; MB_PTR_ADV(p))
 			if (vim_ispathsep(*p))
 			    *p = '%';
 		}
@@ -2784,7 +2784,7 @@ u_undoredo(int undo)
 
     curhead->uh_entry = newlist;
     curhead->uh_flags = new_flags;
-    if ((old_flags & UH_EMPTYBUF) && bufempty())
+    if ((old_flags & UH_EMPTYBUF) && BUFEMPTY())
 	curbuf->b_ml.ml_flags |= ML_EMPTY;
     if (old_flags & UH_CHANGED)
 	changed();
@@ -3175,14 +3175,14 @@ u_find_first_changed(void)
 	if (STRCMP(ml_get_buf(curbuf, lnum, FALSE),
 						uep->ue_array[lnum - 1]) != 0)
 	{
-	    clearpos(&(uhp->uh_cursor));
+	    CLEAR_POS(&(uhp->uh_cursor));
 	    uhp->uh_cursor.lnum = lnum;
 	    return;
 	}
     if (curbuf->b_ml.ml_line_count != uep->ue_size)
     {
 	/* lines added or deleted at the end, put the cursor there */
-	clearpos(&(uhp->uh_cursor));
+	CLEAR_POS(&(uhp->uh_cursor));
 	uhp->uh_cursor.lnum = lnum;
     }
 }
diff --git a/src/userfunc.c b/src/userfunc.c
index 1bf028fa42..07cc47f7c6 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -2104,7 +2104,7 @@ ex_function(exarg_T *eap)
 	else
 	{
 	    /* skip ':' and blanks*/
-	    for (p = theline; vim_iswhite(*p) || *p == ':'; ++p)
+	    for (p = theline; VIM_ISWHITE(*p) || *p == ':'; ++p)
 		;
 
 	    /* Check for "endfunction". */
diff --git a/src/version.c b/src/version.c
index d3a72a086f..d4809fd0a2 100644
--- a/src/version.c
+++ b/src/version.c
@@ -779,6 +779,26 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    454,
+/**/
+    453,
+/**/
+    452,
+/**/
+    451,
+/**/
+    450,
+/**/
+    449,
+/**/
+    448,
+/**/
+    447,
+/**/
+    446,
+/**/
+    446,
 /**/
     445,
 /**/
@@ -2104,7 +2124,7 @@ static void do_intro_line(int row, char_u *mesg, int add_version, int attr);
     void
 maybe_intro_message(void)
 {
-    if (bufempty()
+    if (BUFEMPTY()
 	    && curbuf->b_fname == NULL
 #ifdef FEAT_WINDOWS
 	    && firstwin->w_next == NULL
diff --git a/src/vim.h b/src/vim.h
index c5fe10937c..5dd6fdc486 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -590,7 +590,7 @@ extern int (*dyn_libintl_putenv)(const char *envstring);
 #ifdef FEAT_GETTEXT
 # ifdef DYNAMIC_GETTEXT
 #  define _(x) (*dyn_libintl_gettext)((char *)(x))
-#  define ngettext(x, xs, n) (*dyn_libintl_ngettext)((char *)(x), (char *)(xs), (n))
+#  define NGETTEXT(x, xs, n) (*dyn_libintl_ngettext)((char *)(x), (char *)(xs), (n))
 #  define N_(x) x
 #  define bindtextdomain(domain, dir) (*dyn_libintl_bindtextdomain)((domain), (dir))
 #  define bind_textdomain_codeset(domain, codeset) (*dyn_libintl_bind_textdomain_codeset)((domain), (codeset))
@@ -603,6 +603,7 @@ extern int (*dyn_libintl_putenv)(const char *envstring);
 # else
 #  include <libintl.h>
 #  define _(x) gettext((char *)(x))
+#  define NGETTEXT(x, xs, n) ngettext((x), (xs), (n))
 #  ifdef gettext_noop
 #   define N_(x) gettext_noop(x)
 #  else
@@ -611,7 +612,7 @@ extern int (*dyn_libintl_putenv)(const char *envstring);
 # endif
 #else
 # define _(x) ((char *)(x))
-# define ngettext(x, xs, n) (((n) == 1) ? (char *)(x) : (char *)(xs))
+# define NGETTEXT(x, xs, n) (((n) == 1) ? (char *)(x) : (char *)(xs))
 # define N_(x) x
 # ifdef bindtextdomain
 #  undef bindtextdomain
@@ -1766,12 +1767,6 @@ void *vim_memset(void *, int, size_t);
 #define hl_attr(n)	highlight_attr[(int)(n)]
 #define term_str(n)	term_strings[(int)(n)]
 
-/*
- * vim_iswhite() is used for "^" and the like. It differs from isspace()
- * because it doesn't include <CR> and <LF> and the like.
- */
-#define vim_iswhite(x)	((x) == ' ' || (x) == '\t')
-
 /*
  * EXTERN is only defined in main.c.  That's where global variables are
  * actually defined and initialized.
diff --git a/src/window.c b/src/window.c
index f71a002939..eb7673e204 100644
--- a/src/window.c
+++ b/src/window.c
@@ -6140,7 +6140,7 @@ file_name_in_line(
      */
     ptr = line + col;
     while (*ptr != NUL && !vim_isfilec(*ptr))
-	mb_ptr_adv(ptr);
+	MB_PTR_ADV(ptr);
     if (*ptr == NUL)		/* nothing found */
     {
 	if (options & FNAME_MESS)
diff --git a/src/workshop.c b/src/workshop.c
index 0b9774fa5b..844da854a2 100644
--- a/src/workshop.c
+++ b/src/workshop.c
@@ -1087,7 +1087,7 @@ workshop_get_positions(
     *curCol = curwin->w_cursor.col;
 
     if (curbuf->b_visual.vi_mode == 'v' &&
-	    equalpos(curwin->w_cursor, curbuf->b_visual.vi_end))
+	    EQUAL_POS(curwin->w_cursor, curbuf->b_visual.vi_end))
     {
 	*selStartLine = curbuf->b_visual.vi_start.lnum;
 	*selStartCol = curbuf->b_visual.vi_start.col;