From: Ralph Campbell <ralph@ucbvax.Berkeley.EDU>
Date: Thu, 10 Mar 1983 08:23:12 +0000 (-0800)
Subject: date and time created 83/03/09 16:23:12 by ralph
X-Git-Tag: BSD-4_1c_2-Snapshot-Development~43
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/d9fde7be68e59afda65256bee42551a3da1c9cba

date and time created 83/03/09 16:23:12 by ralph

SCCS-vsn: old/lib2648/rdchar.c 4.1
---

diff --git a/usr/src/old/lib2648/rdchar.c b/usr/src/old/lib2648/rdchar.c
new file mode 100644
index 0000000000..c98f746597
--- /dev/null
+++ b/usr/src/old/lib2648/rdchar.c
@@ -0,0 +1,26 @@
+/*	rdchar.c	4.1	83/03/09	*/
+/*
+ * rdchar: returns a readable representation of an ASCII char, using ^ notation.
+ */
+
+#include <ctype.h>
+
+char *rdchar(c)
+char c;
+{
+	static char ret[4];
+	register char *p;
+
+	/*
+	 * Due to a bug in isprint, this prints spaces as ^`, but this is OK
+	 * because we want something to show up on the screen.
+	 */
+	ret[0] = ((c&0377) > 0177) ? '\'' : ' ';
+	c &= 0177;
+	ret[1] = isprint(c) ? ' ' : '^';
+	ret[2] = isprint(c) ?  c  : c^0100;
+	ret[3] = 0;
+	for (p=ret; *p==' '; p++)
+		;
+	return (p);
+}