libraries/nlohmann_json: Added (JSON for Modern C++)

Signed-off-by: Dave Woodfall <dave@slackbuilds.org>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

libraries/nlohmann_json/README

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+There are myriads of JSON libraries out there, and each may even have
+its reason to exist. Our class had these design goals:
+
+Intuitive syntax. In languages such as Python, JSON feels like a first
+class data type. We used all the operator magic of modern C++ to achieve
+the same feeling in your code. Check out the examples below and you'll
+know what I mean.
+
+Trivial integration. Our whole code consists of a single header file
+json.hpp. That's it. No library, no subproject, no dependencies, no
+complex build system. The class is written in vanilla C++11. All in all,
+everything should require no adjustment of your compiler flags or
+project settings.
+
+Serious testing. Our class is heavily unit-tested and covers 100% of the
+code, including all exceptional behavior. Furthermore, we checked with
+Valgrind and the Clang Sanitizers that there are no memory leaks. Google
+OSS-Fuzz additionally runs fuzz tests against all parsers 24/7,
+effectively executing billions of tests so far. To maintain high
+quality, the project is following the Core Infrastructure Initiative
+(CII) best practices.
+
+Other aspects were not so important to us:
+
+Memory efficiency. Each JSON object has an overhead of one pointer (the
+maximal size of a union) and one enumeration element (1 byte). The
+default generalization uses the following C++ data types: std::string
+for strings, int64_t, uint64_t or double for numbers, std::map for
+objects, std::vector for arrays, and bool for Booleans. However, you can
+template the generalized class basic_json to your needs.
+
+Speed. There are certainly faster JSON libraries out there. However, if
+your goal is to speed up your development by adding JSON support with a
+single header, then this library is the way to go. If you know how to
+use a std::vector or std::map, you are already set.

libraries/nlohmann_json/nlohmann_json.SlackBuild

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+#!/bin/bash
+
+# Slackware build script for nlohmann_json
+
+# Copyright 2022 Steven Voges <svoges.sbo@gmail.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.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+SRCNAM=json
+PRGNAM=nlohmann_json
+VERSION=${VERSION:-3.10.5}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+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 $SRCNAM-$VERSION
+tar xvf $CWD/$SRCNAM-$VERSION.tar.gz
+cd $SRCNAM-$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 {} \;
+
+mkdir -p build
+cd build
+  cmake \
+    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
+    -DCMAKE_INSTALL_PREFIX=/usr \
+    -DCMAKE_BUILD_TYPE=Release ..
+  make
+  make install/strip DESTDIR=$PKG
+cd ..
+
+rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la
+
+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
+
+find $PKG -name perllocal.pod -o -name ".packlist" -o -name "*.bs" | xargs rm -f || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+  *.md LICENSE.MIT \
+  $PKG/usr/doc/$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
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE

libraries/nlohmann_json/nlohmann_json.info

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+PRGNAM="nlohmann_json"
+VERSION="3.10.5"
+HOMEPAGE="https://json.nlohmann.me/"
+DOWNLOAD="https://github.com/nlohmann/json/archive/v3.10.5/json-3.10.5.tar.gz"
+MD5SUM="5b946f7d892fa55eabec45e76a20286b"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Steven Voges"
+EMAIL="svoges.sbo@gmail.com"

libraries/nlohmann_json/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------------------------------------------------------|
+nlohmann_json: nlohmann_json  (JSON for Modern C++)
+nlohmann_json:
+nlohmann_json: nlohmann_json is a JSON library for modern C++ and was designed with
+nlohmann_json: three goals in mind: Intuitive syntax, Trivial integration, and
+nlohmann_json: Serious testing.
+nlohmann_json:
+nlohmann_json:
+nlohmann_json:
+nlohmann_json:
+nlohmann_json:
+nlohmann_json: