Merge remote-tracking branch 'vim/master'

runtime/doc/eval.txt

@@ -439,8 +439,8 @@ Changing the order of items in a list: >
 
 For loop ~
 
-The |:for| loop executes commands for each item in a list.  A variable is set
-to each item in the list in sequence.  Example: >
+The |:for| loop executes commands for each item in a List, String or Blob.
+A variable is set to each item in sequence.  Example with a List: >
 	:for item in mylist
 	:   call Doit(item)
 	:endfor
@@ -457,7 +457,7 @@ If all you want to do is modify each item in the list then the |map()|
 function will be a simpler method than a for loop.
 
 Just like the |:let| command, |:for| also accepts a list of variables.  This
-requires the argument to be a list of lists. >
+requires the argument to be a List of Lists. >
 	:for [lnum, col] in [[1, 3], [2, 8], [3, 0]]
 	:   call Doit(lnum, col)
 	:endfor
@@ -473,6 +473,14 @@ It is also possible to put remaining items in a List variable: >
 	:   endif
 	:endfor
 
+For a Blob one byte at a time is used.
+
+For a String one character, including any composing characters, is used as a
+String.  Example: >
+	for c in text
+	  echo 'This character is ' .. c
+	endfor
+
 
 List functions ~
 						*E714*

runtime/doc/textprop.txt

@@ -175,6 +175,7 @@ prop_find({props} [, {direction}])
 		Search for a text property as specified with {props}:
 		   id		property with this ID
 		   type		property with this type name
+		   both		"id" and "type" must both match
 		   bufnr	buffer to search in; when present a
 				start position with "lnum" and "col"
 				must be given; when omitted the
@@ -187,6 +188,7 @@ prop_find({props} [, {direction}])
 		   skipstart	do not look for a match at the start
 				position
 
+		A property matches when either "id" or "type" matches.
 		{direction} can be "f" for forward and "b" for backward.  When
 		omitted forward search is performed.
 

src/channel.c

@@ -4946,6 +4946,11 @@ f_ch_logfile(typval_T *argvars, typval_T *rettv UNUSED)
     // Don't open a file in restricted mode.
     if (check_restricted() || check_secure())
 	return;
+    if (in_vim9script()
+	    && (check_for_string_arg(argvars, 0) == FAIL
+		|| check_for_string_arg(argvars, 1) == FAIL))
+	return;
+
     fname = tv_get_string(&argvars[0]);
     if (argvars[1].v_type == VAR_STRING)
 	opt = tv_get_string_buf(&argvars[1], buf);

src/errors.h

@@ -386,4 +386,8 @@ EXTERN char e_text_found_after_enddef_str[]
 EXTERN char e_string_required_for_argument_nr[]
 	INIT(= N_("E1174: String required for argument %d"));
 EXTERN char e_non_empty_string_required_for_argument_nr[]
-	INIT(= N_("E1142: Non-empty string required for argument %d"));
+	INIT(= N_("E1175: Non-empty string required for argument %d"));
+EXTERN char e_misplaced_command_modifier[]
+	INIT(= N_("E1176: Misplaced command modifier"));
+EXTERN char e_for_loop_on_str_not_supported[]
+	INIT(= N_("E1177: For loop on %s not supported"));

src/eval.c

@@ -41,6 +41,8 @@ typedef struct
     list_T	*fi_list;	// list being used
     int		fi_bi;		// index of blob
     blob_T	*fi_blob;	// blob being used
+    char_u	*fi_string;	// copy of string being used
+    int		fi_byte_idx;	// byte index in fi_string
 } forinfo_T;
 
 static int tv_op(typval_T *tv1, typval_T *tv2, char_u  *op);
@@ -1738,6 +1740,14 @@ eval_for_line(
 		}
 		clear_tv(&tv);
 	    }
+	    else if (tv.v_type == VAR_STRING)
+	    {
+		fi->fi_byte_idx = 0;
+		fi->fi_string = tv.vval.v_string;
+		tv.vval.v_string = NULL;
+		if (fi->fi_string == NULL)
+		    fi->fi_string = vim_strsave((char_u *)"");
+	    }
 	    else
 	    {
 		emsg(_(e_listreq));
@@ -1790,7 +1800,25 @@ next_for_item(void *fi_void, char_u *arg)
 	tv.vval.v_number = blob_get(fi->fi_blob, fi->fi_bi);
 	++fi->fi_bi;
 	return ex_let_vars(arg, &tv, TRUE, fi->fi_semicolon,
-				       fi->fi_varcount, flag, NULL) == OK;
+					    fi->fi_varcount, flag, NULL) == OK;
+    }
+
+    if (fi->fi_string != NULL)
+    {
+	typval_T	tv;
+	int		len;
+
+	len = mb_ptr2len(fi->fi_string + fi->fi_byte_idx);
+	if (len == 0)
+	    return FALSE;
+	tv.v_type = VAR_STRING;
+	tv.v_lock = VAR_FIXED;
+	tv.vval.v_string = vim_strnsave(fi->fi_string + fi->fi_byte_idx, len);
+	fi->fi_byte_idx += len;
+	result = ex_let_vars(arg, &tv, TRUE, fi->fi_semicolon,
+					    fi->fi_varcount, flag, NULL) == OK;
+	vim_free(tv.vval.v_string);
+	return result;
     }
 
     item = fi->fi_lw.lw_item;
@@ -1800,7 +1828,7 @@ next_for_item(void *fi_void, char_u *arg)
     {
 	fi->fi_lw.lw_item = item->li_next;
 	result = (ex_let_vars(arg, &item->li_tv, TRUE, fi->fi_semicolon,
-				      fi->fi_varcount, flag, NULL) == OK);
+					   fi->fi_varcount, flag, NULL) == OK);
     }
     return result;
 }
@@ -1813,13 +1841,17 @@ free_for_info(void *fi_void)
 {
     forinfo_T    *fi = (forinfo_T *)fi_void;
 
-    if (fi != NULL && fi->fi_list != NULL)
+    if (fi == NULL)
+	return;
+    if (fi->fi_list != NULL)
     {
 	list_rem_watch(fi->fi_list, &fi->fi_lw);
 	list_unref(fi->fi_list);
     }
-    if (fi != NULL && fi->fi_blob != NULL)
+    else if (fi->fi_blob != NULL)
 	blob_unref(fi->fi_blob);
+    else
+	vim_free(fi->fi_string);
     vim_free(fi);
 }
 
@@ -5266,6 +5298,9 @@ var2fpos(
 	return &pos;
     }
 
+    if (in_vim9script() && check_for_string_arg(varp, 0) == FAIL)
+	return NULL;
+
     name = tv_get_string_chk(varp);
     if (name == NULL)
 	return NULL;

src/evalbuffer.c

@@ -88,6 +88,8 @@ find_buffer(typval_T *avar)
 
     if (avar->v_type == VAR_NUMBER)
 	buf = buflist_findnr((int)avar->vval.v_number);
+    else if (in_vim9script() && check_for_string_arg(avar, 0) == FAIL)
+	return NULL;
     else if (avar->v_type == VAR_STRING && avar->vval.v_string != NULL)
     {
 	buf = buflist_findname_exp(avar->vval.v_string);

src/evalfunc.c

@@ -2323,8 +2323,12 @@ f_balloon_show(typval_T *argvars, typval_T *rettv UNUSED)
 	}
 	else
 	{
-	    char_u *mesg = tv_get_string_chk(&argvars[0]);
+	    char_u *mesg;
 
+	    if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
+		return;
+
+	    mesg = tv_get_string_chk(&argvars[0]);
 	    if (mesg != NULL)
 		// empty string removes the balloon
 		post_balloon(balloonEval, *mesg == NUL ? NULL : mesg, NULL);
@@ -2338,8 +2342,11 @@ f_balloon_split(typval_T *argvars, typval_T *rettv UNUSED)
 {
     if (rettv_list_alloc(rettv) == OK)
     {
-	char_u *msg = tv_get_string_chk(&argvars[0]);
+	char_u *msg;
 
+	if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
+	    return;
+	msg = tv_get_string_chk(&argvars[0]);
 	if (msg != NULL)
 	{
 	    pumitem_T	*array;
@@ -2514,6 +2521,8 @@ f_changenr(typval_T *argvars UNUSED, typval_T *rettv)
     static void
 f_char2nr(typval_T *argvars, typval_T *rettv)
 {
+    if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
+	return;
     if (has_mbyte)
     {
 	int	utf8 = 0;
@@ -2678,11 +2687,16 @@ f_confirm(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
     char_u	*typestr;
     int		error = FALSE;
 
+    if (in_vim9script() && check_for_string_arg(argvars, 0) == FAIL)
+	return;
+
     message = tv_get_string_chk(&argvars[0]);
     if (message == NULL)
 	error = TRUE;
     if (argvars[1].v_type != VAR_UNKNOWN)
     {
+	if (in_vim9script() && check_for_string_arg(argvars, 1) == FAIL)
+	    return;
 	buttons = tv_get_string_buf_chk(&argvars[1], buf);
 	if (buttons == NULL)
 	    error = TRUE;
@@ -2691,6 +2705,8 @@ f_confirm(typval_T *argvars UNUSED, typval_T *rettv UNUSED)
 	    def = (int)tv_get_number_chk(&argvars[2], &error);
 	    if (argvars[3].v_type != VAR_UNKNOWN)
 	    {
+		if (in_vim9script() && check_for_string_arg(argvars, 3) == FAIL)
+		    return;
 		typestr = tv_get_string_buf_chk(&argvars[3], buf2);
 		if (typestr == NULL)
 		    error = TRUE;

src/evalvars.c

@@ -791,8 +791,11 @@ ex_let(exarg_T *eap)
 	{
 	    if (vim9script)
 	    {
-		// Vim9 declaration ":var name: type"
-		arg = vim9_declare_scriptvar(eap, arg);
+		if (!ends_excmd2(eap->cmd, skipwhite(argend)))
+		    semsg(_(e_trailing_arg), argend);
+		else
+		    // Vim9 declaration ":var name: type"
+		    arg = vim9_declare_scriptvar(eap, arg);
 	    }
 	    else
 	    {