academic/cadabra2: Added (field-theory motivated computer algebra).

Signed-off-by: David Spencer <idlemoor@slackbuilds.org>

academic/cadabra2/README

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+Cadabra is a symbolic computer algebra system (CAS) designed
+specifically for the solution of problems encountered in field theory.
+It has extensive functionality for tensor computer algebra, tensor
+polynomial simplification including multi-term symmetries, fermions and
+anti-commuting variables, Clifford algebras and Fierz transformations,
+component computations, implicit coordinate dependence, multiple index
+types and many more. The input format is a subset of TeX. Programmable
+in Python. Both a command-line and a graphical interface are available.
+
+Optional runtime dependencies are matplotlib, mpmath, and sympy.

academic/cadabra2/cadabra2.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for cadabra2
+
+# Copyright 2017, Alexander Verbovetsky, Moscow, Russia
+# 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.
+
+PRGNAM=cadabra2
+VERSION=${VERSION:-2.1.6}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+CWD=$(pwd)
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+# workaround for https://github.com/kpeeters/cadabra2/issues/12
+# (caused by https://github.com/zaphoyd/websocketpp/issues/587)
+sed --in-place \
+  -e 's/listen(lib::asio::ip::tcp::v6(),/listen(lib::asio::ip::tcp::v4(),/' \
+  client_server/websocketpp/websocketpp/transport/asio/endpoint.hpp
+
+sed --in-place \
+  -e "s/\(LIBRARY DESTINATION lib\)/\1${LIBDIRSUFFIX}/" \
+  client_server/CMakeLists.txt \
+  frontend/common/CMakeLists.txt
+
+sed --in-place \
+  -e '/^execute_process(COMMAND texhash)$/d' \
+  frontend/latex/install.cmake
+
+sed --in-place \
+  -e '/^install(CODE\s\+"execute_process(COMMAND \(touch\|gtk-update-icon-cache.*\|chmod go+r\) ${ICON_PREFIX}\/share\/icons\/hicolor\(\|\/icon-theme\.cache\))")$/d' \
+  frontend/gtkmm/CMakeLists.txt
+
+mkdir -p build
+cd build
+  cmake \
+    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DUSE_PYTHON_3=OFF \
+    -DCMAKE_BUILD_TYPE=Release ..
+  make
+  make install DESTDIR=$PKG
+cd ..
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a  doc examples README.rst $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

academic/cadabra2/cadabra2.info

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+PRGNAM="cadabra2"
+VERSION="2.1.6"
+HOMEPAGE="http://cadabra.science"
+DOWNLOAD="http://downloads.sourceforge.net/slackbuildsdirectlinks/cadabra2-2.1.6.tar.gz"
+MD5SUM="7c25d51d17deb7e2ea8f45eb6091e728"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Alexander Verbovetsky"
+EMAIL="alik@ejik.org"

academic/cadabra2/doinst.sh

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+if [ -x /usr/bin/update-desktop-database ]; then
+  /usr/bin/update-desktop-database -q usr/share/applications >/dev/null 2>&1
+fi
+
+if [ -x /usr/bin/update-mime-database ]; then
+  /usr/bin/update-mime-database usr/share/mime >/dev/null 2>&1
+fi
+
+if [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
+  if [ -x /usr/bin/gtk-update-icon-cache ]; then
+    /usr/bin/gtk-update-icon-cache -f usr/share/icons/hicolor >/dev/null 2>&1
+  fi
+fi
+
+if [ -x /usr/bin/mktexlsr ]; then
+  chroot . /usr/bin/mktexlsr >/dev/null 2>&1
+else
+  if [ -x /usr/share/texmf/bin/mktexlsr ]; then
+    chroot . /usr/share/texmf/bin/mktexlsr >/dev/null 2>&1
+  fi
+fi

academic/cadabra2/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+        |-----handy-ruler------------------------------------------------------|
+cadabra2: cadabra2 (a field-theory motivated approach to computer algebra)
+cadabra2:
+cadabra2: Cadabra is a symbolic computer algebra system designed specifically
+cadabra2: for the solution of problems encountered in field theory. The input
+cadabra2: format is a subset of TeX. Programmable in Python. Both a
+cadabra2: command-line and a graphical interface are available.
+cadabra2:
+cadabra2: Homepage: http://cadabra.science
+cadabra2:
+cadabra2: Development: https://github.com/kpeeters/cadabra2
+cadabra2: