X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=ncurses%2Ftinfo%2Flib_tgoto.c;h=58b561fa7c781610ee030d2a075466fe320d922f;hb=d1a029866f6d84087781eaa81de19949d8533426;hp=8e240856f823c99bb48e03cf58e3c858b39155ef;hpb=47d2fb4537d9ad5bb14f4810561a327930ca4280;p=ncurses.git

diff --git a/ncurses/tinfo/lib_tgoto.c b/ncurses/tinfo/lib_tgoto.c
index 8e240856..58b561fa 100644
--- a/ncurses/tinfo/lib_tgoto.c
+++ b/ncurses/tinfo/lib_tgoto.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright 2018-2019,2020 Thomas E. Dickey                                *
+ * Copyright 2018-2020,2023 Thomas E. Dickey                                *
  * Copyright 2000-2008,2012 Free Software Foundation, Inc.                  *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
@@ -36,7 +36,7 @@
 #include <ctype.h>
 #include <termcap.h>
 
-MODULE_ID("$Id: lib_tgoto.c,v 1.19 2020/02/02 23:34:34 tom Exp $")
+MODULE_ID("$Id: lib_tgoto.c,v 1.23 2023/04/16 17:19:40 tom Exp $")
 
 #if !PURE_TERMINFO
 static bool
@@ -207,6 +207,16 @@ tgoto(const char *string, int x, int y)
 	result = tgoto_internal(string, x, y);
     else
 #endif
-	result = TPARM_2(string, y, x);
+    if ((result = TIPARM_2(string, y, x)) == NULL) {
+	/*
+	 * Because termcap did not provide a more general solution such as
+	 * tparm(), it was necessary to handle single-parameter capabilities
+	 * using tgoto().  The internal _nc_tiparm() function returns a NULL
+	 * for that case; retry for the single-parameter case.
+	 */
+	if ((result = TIPARM_1(string, y)) == NULL) {
+	    result = TIPARM_0(string);
+	}
+    }
     returnPtr(result);
 }