X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftrace%2Fvisbuf.c;h=aca8affc4fa1b11a27dbcb37873b6e3f1e4bd83d;hp=66d0c8a797ffde2fbf3b3751491ede1fe66b2295;hb=HEAD;hpb=76a479337308b4b5e749fa8c38b7b7f482998c5b;ds=sidebyside

diff --git a/ncurses/trace/visbuf.c b/ncurses/trace/visbuf.c
index 66d0c8a7..590e4230 100644
--- a/ncurses/trace/visbuf.c
+++ b/ncurses/trace/visbuf.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2001-2014,2016 Free Software Foundation, Inc.              *
+ * Copyright 2019-2021,2023 Thomas E. Dickey                                *
+ * Copyright 2001-2016,2017 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            *
@@ -42,7 +43,7 @@
 #include <tic.h>
 #include <ctype.h>
 
-MODULE_ID("$Id: visbuf.c,v 1.47 2016/05/28 23:29:37 tom Exp $")
+MODULE_ID("$Id: visbuf.c,v 1.54 2023/05/27 20:13:10 tom Exp $")
 
 #define NUM_VISBUFS 4
 
@@ -66,7 +67,9 @@ static const char r_brace[] = StringOf(R_BRACE);
 static char *
 _nc_vischar(char *tp, unsigned c LIMIT_ARG)
 {
-    if (c == '"' || c == '\\') {
+    if (tp == NULL) {
+	return NULL;
+    } else if (c == '"' || c == '\\') {
 	*tp++ = '\\';
 	*tp++ = (char) c;
     } else if (is7bits((int) c) && (isgraph((int) c) || c == ' ')) {
@@ -80,6 +83,9 @@ _nc_vischar(char *tp, unsigned c LIMIT_ARG)
     } else if (c == '\b') {
 	*tp++ = '\\';
 	*tp++ = 'b';
+    } else if (c == '\t') {
+	*tp++ = '\\';
+	*tp++ = 't';
     } else if (c == '\033') {
 	*tp++ = '\\';
 	*tp++ = 'e';
@@ -279,7 +285,7 @@ _nc_viswibuf(const wint_t *buf)
 
 /* use these functions for displaying parts of a line within a window */
 NCURSES_EXPORT(const char *)
-_nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
+_nc_viscbuf2(int bufnum, const NCURSES_CH_T *buf, int len)
 {
     char *result = _nc_trace_buf(bufnum, (size_t) BUFSIZ);
 
@@ -333,9 +339,10 @@ _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
 			PUTC_n = (int) wcrtomb(PUTC_buf,
 					       buf[j].chars[PUTC_i], &PUT_st);
 			if (PUTC_n <= 0 || buf[j].chars[PUTC_i] > 255) {
-			    sprintf(temp, "{%d:\\u%x}",
-				    wcwidth(buf[j].chars[PUTC_i]),
-				    buf[j].chars[PUTC_i]);
+			    _nc_SPRINTF(temp, _nc_SLIMIT(sizeof(temp))
+					"{%d:\\u%lx}",
+					_nc_wacs_width(buf[j].chars[PUTC_i]),
+					(unsigned long) buf[j].chars[PUTC_i]);
 			    (void) _nc_trace_bufcat(bufnum, temp);
 			    break;
 			}
@@ -366,7 +373,7 @@ _nc_viscbuf2(int bufnum, const NCURSES_CH_T * buf, int len)
 }
 
 NCURSES_EXPORT(const char *)
-_nc_viscbuf(const NCURSES_CH_T * buf, int len)
+_nc_viscbuf(const NCURSES_CH_T *buf, int len)
 {
     return _nc_viscbuf2(0, buf, len);
 }