ncurses 5.0

[ncurses.git] / ncurses / trace / lib_tracechr.c

diff --git a/ncurses/trace/lib_tracechr.c b/ncurses/trace/lib_tracechr.c
new file mode 100644 (file)
index 0000000..e97e679
--- /dev/null
+++ b/ncurses/trace/lib_tracechr.c
@@ -0,0 +1,69 @@
+/****************************************************************************
+ * Copyright (c) 1998 Free Software Foundation, Inc.                        *
+ *                                                                          *
+ * Permission is hereby granted, free of charge, to any person obtaining a  *
+ * copy of this software and associated documentation files (the            *
+ * "Software"), to deal in the Software without restriction, including      *
+ * without limitation the rights to use, copy, modify, merge, publish,      *
+ * distribute, distribute with modifications, sublicense, and/or sell       *
+ * copies of the Software, and to permit persons to whom the Software is    *
+ * furnished to do so, subject to the following conditions:                 *
+ *                                                                          *
+ * The above copyright notice and this permission notice shall be included  *
+ * in all copies or substantial portions of the Software.                   *
+ *                                                                          *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
+ *                                                                          *
+ * Except as contained in this notice, the name(s) of the above copyright   *
+ * holders shall not be used in advertising or otherwise to promote the     *
+ * sale, use or other dealings in this Software without prior written       *
+ * authorization.                                                           *
+ ****************************************************************************/
+
+/****************************************************************************
+ *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
+ *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ ****************************************************************************/
+
+
+
+/*
+ *     lib_tracechr.c - Tracing/Debugging routines
+ */
+
+#ifndef TRACE
+#define TRACE                  /* turn on internal defs for this module */
+#endif
+
+#include <curses.priv.h>
+
+#include <ctype.h>
+
+#ifdef TRACE
+char *_tracechar(const unsigned char ch)
+{
+    static char crep[20];
+    /* 
+     * We can show the actual character if it's either an ordinary printable
+     * or one of the high-half characters.
+     */
+    if (isprint(ch) || (ch & 0x80))
+    {
+       crep[0] = '\'';
+       crep[1] = ch;   /* necessary; printf tries too hard on metachars */
+       (void) sprintf(crep + 2, "' = 0x%02x", (unsigned)ch);
+    }
+    else
+       (void) sprintf(crep, "0x%02x", (unsigned)ch);
+    return(crep);
+}
+#else
+extern void _nc_lib_tracechr(void);
+       void _nc_lib_tracechr(void) { }
+#endif