From 1f958cfad78842ab9a1193471589231e25596cb3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefan=20E=C3=9Fer?= <se@FreeBSD.org>
Date: Sat, 27 Jun 2020 15:03:19 +0000
Subject: Import new 2-clause BSD licenced implementation of the bc and dc
 commands

These implementations of the bc and dc programs offer a number of advantages
compared to the current implementations in the FreeBSD base system:

- They do not depend on external large number functions (i.e. no dependency
  on OpenSSL or any other large number library)

- They implements all features found in GNU bc/dc (with the exception of
  the forking of sub-processes, which the author of this version considers
  as a security issue).

- They are significantly faster than the current code in base (more than
  2 orders of magnitude in some of my tests, e.g. for 12345^100000).

- They should be fully compatible with all features and the behavior of the
  current implementations in FreeBSD (not formally verified).

- They support POSIX message catalogs and come with localized messages in
  Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze,
  and Russian.

- They offer very detailed man-pages that provide far more information than
  the current ones.

Approved by:	imp
Obtained from:	https://git.yzena.com/gavin/bc
Differential Revision:	https://reviews.freebsd.org/D19982
---
 gen/strgen.sh | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100755 gen/strgen.sh

(limited to 'gen/strgen.sh')

diff --git a/gen/strgen.sh b/gen/strgen.sh
new file mode 100755
index 000000000000..24d560991f8d
--- /dev/null
+++ b/gen/strgen.sh
@@ -0,0 +1,79 @@
+#! /bin/sh
+#
+# Copyright (c) 2018-2020 Gavin D. Howard and contributors.
+#
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# * Redistributions of source code must retain the above copyright notice, this
+#   list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright notice,
+#   this list of conditions and the following disclaimer in the documentation
+#   and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+export LANG=C
+export LC_CTYPE=C
+
+progname=${0##*/}
+
+if [ $# -lt 4 ]; then
+	echo "usage: $progname input output name header [label [define [remove_tabs]]]"
+	exit 1
+fi
+
+input="$1"
+output="$2"
+name="$3"
+header="$4"
+label="$5"
+define="$6"
+remove_tabs="$7"
+
+exec < "$input"
+exec > "$output"
+
+if [ -n "$label" ]; then
+	nameline="const char *${label} = \"${input}\";"
+fi
+
+if [ -n "$define" ]; then
+	condstart="#if ${define}"
+	condend="#endif"
+fi
+
+if [ -n "$remove_tabs" ]; then
+	if [ "$remove_tabs" -ne 0 ]; then
+		remtabsexpr='s:	::g;'
+	fi
+fi
+
+cat<<EOF
+// Licensed under the 2-clause BSD license.
+// *** AUTOMATICALLY GENERATED FROM ${input}. DO NOT MODIFY. ***
+
+${condstart}
+#include <${header}>
+
+$nameline
+
+const char ${name}[] =
+$(sed -e "$remtabsexpr " -e '1,/^$/d; s:\\n:\\\\n:g; s:":\\":g; s:^:":; s:$:\\n":')
+;
+${condend}
+EOF
-- 
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