From 35876eaab991efc7759802f184cdd54663ea8a94 Mon Sep 17 00:00:00 2001
From: Nicholas Marriott <nicm@openbsd.org>
Date: Mon, 1 Jun 2009 22:58:49 +0000
Subject: Import tmux, a terminal multiplexor allowing (among other things) a
 single terminal to be switched between several different windows and programs
 displayed on one terminal be detached from one terminal and moved to another.

ok deraadt pirofti
---
 util.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 util.c

(limited to 'util.c')

diff --git a/util.c b/util.c
new file mode 100644
index 00000000..1455214a
--- /dev/null
+++ b/util.c
@@ -0,0 +1,72 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include "tmux.h"
+
+/* Return a section of a string around a point. */
+char *
+section_string(char *buf, size_t len, size_t sectoff, size_t sectlen)
+{
+	char	*s;
+	size_t	 first, last;
+
+	if (len <= sectlen) {
+		first = 0;
+		last = len;
+	} else if (sectoff < sectlen / 2) {
+		first = 0;
+		last = sectlen;
+	} else if (sectoff + sectlen / 2 > len) {
+		last = len;
+		first = last - sectlen;
+	} else {
+		first = sectoff - sectlen / 2;
+		last = first + sectlen;
+	}
+
+	if (last - first > 3 && first != 0)
+		first += 3;
+	if (last - first > 3 && last != len)
+		last -= 3;
+
+	xasprintf(&s, "%s%.*s%s", first == 0 ? "" : "...",
+	    (int) (last - first), buf + first, last == len ? "" : "...");
+	return (s);
+}
+
+/* Clean string of invisible characters. */
+void
+clean_string(const char *in, char *buf, size_t len)
+{
+	const u_char	*cp;
+	size_t	 	 off;
+
+	off = 0;
+	for (cp = in; *cp != '\0'; cp++) {
+		if (off >= len)
+			break;
+		if (*cp >= 0x20 && *cp <= 0x7f)
+			buf[off++] = *cp;
+		else
+			off += xsnprintf(buf + off, len - off, "\\%03hho", *cp);
+	}
+	if (off < len)
+		buf[off] = '\0';
+}
-- 
cgit