make the "smart home" routines handle multibyte blank characters

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@2250 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -97,11 +97,12 @@ CVS code -
 	  control_mbrep(), control_wrep(), mbwidth(), mb_cur_max(), and
 	  make_mbchar(); changes to is_blank_char() (moved to chars.c),
 	  is_cntrl_char() (moved to chars.c), parse_char() (renamed
-	  parse_mbchar() and moved to chars.c), do_verbatim_input(),
-	  do_delete(), do_tab(), do_input(), do_output(), get_buffer(),
-	  unget_input(), unget_kbinput(), get_input(), parse_kbinput(),
-	  unparse_kbinput(), parse_verbatim_kbinput(),
-	  do_statusbar_input(), do_statusbar_verbatim_kbinput(),
+	  parse_mbchar() and moved to chars.c), do_home(),
+	  do_verbatim_input(), do_delete(), do_tab(), do_input(),
+	  do_output(), get_buffer(), unget_input(), unget_kbinput(),
+	  get_input(), parse_kbinput(), unparse_kbinput(),
+	  parse_verbatim_kbinput(), do_statusbar_input(),
+	  do_statusbar_home(), do_statusbar_verbatim_kbinput(),
 	  do_statusbar_output(), and display_string(); removal of
 	  buffer_to_keys() and keys_to_buffer(). (DLR)
 - cut.c:

src/move.c

@@ -57,10 +57,26 @@ void do_home(void)
 #ifndef NANO_SMALL
     if (ISSET(SMART_HOME)) {
 	size_t current_x_save = current_x;
+	char *blank_mb = charalloc(mb_cur_max());
+	int blank_mb_len;
 
-	for (current_x = 0; is_blank_char(current->data[current_x]) &&
-		current->data[current_x] != '\0'; current_x++)
-	    ;
+	current_x = 0;
+
+	while (current->data[current_x] != '\0') {
+	    blank_mb_len = parse_mbchar(current->data + current_x,
+		blank_mb
+#ifdef NANO_WIDE
+		, NULL
+#endif
+		, NULL);
+
+	    if (!is_blank_mbchar(blank_mb))
+		break;
+
+	    current_x += blank_mb_len;
+	}
+
+	free(blank_mb);
 
 	if (current_x == current_x_save ||
 		current->data[current_x] == '\0')

src/winio.c

@@ -1803,9 +1803,27 @@ void do_statusbar_home(void)
 #ifndef NANO_SMALL
     if (ISSET(SMART_HOME)) {
 	size_t statusbar_x_save = statusbar_x;
-	for (statusbar_x = 0; is_blank_char(answer[statusbar_x]) &&
-		statusbar_x < statusbar_xend; statusbar_x++)
-	    ;
+	char *blank_mb = charalloc(mb_cur_max());
+	int blank_mb_len;
+
+	statusbar_x = 0;
+
+	while (statusbar_x < statusbar_xend) {
+	    blank_mb_len = parse_mbchar(answer + statusbar_x,
+		blank_mb
+#ifdef NANO_WIDE
+		, NULL
+#endif
+		, NULL);
+
+	    if (!is_blank_mbchar(blank_mb))
+		break;
+
+	    statusbar_x += blank_mb_len;
+	}
+
+	free(blank_mb);
+
 	if (statusbar_x == statusbar_x_save ||
 		statusbar_x == statusbar_xend)
 	    statusbar_x = 0;