development/peg: Added (recursive-descent parser generators for C).

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

development/peg/README

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+peg and leg are utilities to generate recursive descent parsers from parsing
+expression grammars (PEGs).

development/peg/peg.SlackBuild

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+#!/bin/sh
+
+# Slackware build script for peg/leg
+
+# Copyright 2019 Ryan S. Northrup <northrup@yellowapple.us>
+# 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=peg
+VERSION=${VERSION:-0.1.18}
+SRCARCHIVE=${PRGNAM}-${VERSION}.tar.gz
+BUILD=${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"
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+else
+  SLKCFLAGS="-O2"
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+#mkdir $PRGNAM-$VERSION
+#cd $PRGNAM-$VERSION
+tar xvf $CWD/$SRCARCHIVE
+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 {} \;
+
+# Ain't really much to the build process
+make CFLAGS="$SLKCFLAGS"
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+    | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+make install ROOT="$PKG" PREFIX="/usr"
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a README.txt LICENSE.txt $PKG/usr/doc/$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:-tgz}

development/peg/peg.info

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+PRGNAM="peg"
+VERSION="0.1.18"
+HOMEPAGE="http://piumarta.com/software/peg/"
+DOWNLOAD="http://piumarta.com/software/peg/peg-0.1.18.tar.gz"
+MD5SUM="992fc7887afc2a8c92cdb1acb5b935e1"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="Ryan S. Northrup"
+EMAIL="northrup@yellowapple.us"

development/peg/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------------------------------------------------------|
+peg: peg (recursive-descent parser generators for C)
+peg:
+peg: Utilities to generate recursive-descent parsers for parsing
+peg: expression grammars (PEGs).
+peg: 
+peg:
+peg:
+peg:
+peg:
+peg:
+peg: