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#!/bin/sh
# Copyright 2008 Mauro Giachero (mauro dot giachero at gmail dot com)
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''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 AUTHOR 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.
# This script extracts the source code files from rfc3951.txt, which
# should be fed from stdin.
# The first command line parameter, if provided, is used as the
# extraction folder.
set -e
FILENAME=""
# Create the extraction folder
if [ "$1" != "" ] ; then
mkdir -p "$1"
cd "$1"
fi
# Jump to appendix A
while :; do
if ! IFS= read LINE ; then
echo "Error: file ended prematurely." >&2
exit 1
fi
if [ "$LINE" = "APPENDIX A. Reference Implementation" ]; then
break
fi
done
# Read the source code
while :; do
if ! IFS= read LINE ; then
break
fi
if [ "${LINE:0:2}" = "A." ]; then # Source file begin
FILENAME=`echo ${LINE:6}`
if [ -e $FILENAME ]; then
echo "Error: file '$FILENAME' already exists!"
exit 2
fi
echo "$FILENAME"
elif [ "${LINE:0:8}" = "Andersen" ]; then # Footer
continue
elif [ "${LINE:0:3}" = "RFC" ]; then # Header
continue
elif [ "$LINE" = "Authors' Addresses" ]; then # Appendix end
break
elif [ "$FILENAME" != "" ]; then # File content
echo "$LINE" >>$FILENAME
fi
done
# One extra check, just in case
if [ "$FILENAME" = "" ]; then
echo "Error: no source file found!"
exit 3
fi
# Apparently everything went ok
exit 0
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