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##"slib" script; Find a Scheme implementation and initialize SLIB in it.
#Copyright (C) 2003, 2004 Aubrey Jaffer
#
#Permission to copy this software, to modify it, to redistribute it,
#to distribute modified versions, and to use it for any purpose is
#granted, subject to the following restrictions and understandings.
#
#1. Any copy made of this software must include this copyright notice
#in full.
#
#2. I have made no warranty or representation that the operation of
#this software will be error-free, and I am under no obligation to
#provide any services, by way of maintenance, update, or otherwise.
#
#3. In conjunction with products arising from the use of this
#material, there shall be no use of my name in any advertising,
#promotional, or sales literature without prior written consent in
#each case.
usage="Usage: slib [--version | -v]
Display version information and exit successfully.
Usage: slib SCHEME
Initialize SLIB in Scheme implementation SCHEME.
Usage: slib
Initialize SLIB session using executable (MIT) 'scheme', 'scm',
'gsi', 'mzscheme', 'guile', 'slib48', 'larceny', 'scmlit', 'elk',
'sisc', or 'kawa'."
case "$1" in
-v | --ver*) echo slib "$VERSION"; exit 0;;
"") if type scheme>/dev/null 2>&1; then
command=scheme
fi;;
-*) echo "$usage"; exit 1;;
*) command="$1"
shift
esac
# If more arguments are supplied, then err out.
if [ ! -z "$1" ]; then
echo "$usage"; exit 1
fi
if [ -z "$command" ]; then
if type scm>/dev/null 2>&1; then
command=scm; implementation=scm
elif type gsi>/dev/null 2>&1; then
command=gsi; implementation=gam
elif type mzscheme>/dev/null 2>&1; then
command=mzscheme; implementation=plt
elif type guile>/dev/null 2>&1; then
command=guile; implementation=gui
elif type slib48>/dev/null 2>&1; then
command=slib48; implementation=s48
elif type larceny>/dev/null 2>&1; then
command=larceny; implementation=lar
elif type scmlit>/dev/null 2>&1; then
command=scmlit; implementation=scm
elif type elk>/dev/null 2>&1; then
command=elk; implementation=elk
elif type sisc>/dev/null 2>&1; then
command=sisc; implementation=ssc
elif type kawa>/dev/null 2>&1; then
command=kawa; implementation=kwa
else
echo No Scheme implementation found.
exit 1
fi
# Gambit 4.0 doesn't allow input redirection; foils --version test.
elif [ "$command" == "gsi" ]; then implementation=gam
elif type $command>/dev/null 2>&1; then
SPEW="`$command --version < /dev/null 2>&1`"
if echo ${SPEW} | grep 'Initialize load-path (colon-list of directories)'\
>/dev/null 2>&1; then implementation=elk
elif echo ${SPEW} | grep 'MIT' >/dev/null 2>&1; then implementation=mit
elif echo ${SPEW} | grep 'UMB Scheme'>/dev/null 2>&1; then implementation=umb
elif echo ${SPEW} | grep 'scheme48' >/dev/null 2>&1; then implementation=s48
elif echo ${SPEW} | grep 'MzScheme' >/dev/null 2>&1; then implementation=plt
elif echo ${SPEW} | grep 'larceny' >/dev/null 2>&1; then implementation=lar
elif echo ${SPEW} | grep 'Guile' >/dev/null 2>&1; then implementation=gui
elif echo ${SPEW} | grep 'SCM' >/dev/null 2>&1; then implementation=scm
elif echo ${SPEW} | grep 'SISC' >/dev/null 2>&1; then implementation=ssc
elif echo ${SPEW} | grep 'Kawa' >/dev/null 2>&1; then implementation=kwa
else implementation=
fi
else
echo "Program '$command' not found."
exit 1
fi
case $implementation in
scm);;
s48);;
*) if [ -z "${SCHEME_LIBRARY_PATH}" ]; then
if type rpm>/dev/null 2>&1; then
SCHEME_LIBRARY_PATH=`rpm -ql slib 2>/dev/null \
| grep require.scm | sed 's%require.scm%%'`
fi
fi
if [ -z "${SCHEME_LIBRARY_PATH}" ]; then
if [ -d /usr/local/lib/slib/ ]; then
SCHEME_LIBRARY_PATH=/usr/local/lib/slib/
elif [ -d /usr/share/slib/ ]; then
SCHEME_LIBRARY_PATH=/usr/share/slib/
fi
export SCHEME_LIBRARY_PATH
fi;;
esac
# for gambit
case $implementation in
gam) if [ -z "${LD_LIBRARY_PATH}" ]; then
LD_LIBRARY_PATH=/usr/local/lib
export LD_LIBRARY_PATH
fi;;
esac
case $implementation in
scm) exec $command -ip1 -l ${SCHEME_LIBRARY_PATH}scm.init "$@";;
elk) exec $command -i -l ${SCHEME_LIBRARY_PATH}elk.init "$@";;
gam) exec $command -:s ${SCHEME_LIBRARY_PATH}gambit.init - "$@";;
ssc) exec $command -e "(load \"${SCHEME_LIBRARY_PATH}sisc.init\")" -- "$@";;
kwa) exec $command -f ${SCHEME_LIBRARY_PATH}kawa.init -- "$@";;
plt) exec $command -f ${SCHEME_LIBRARY_PATH}mzscheme.init "$@";;
gui) exec $command -l ${SCHEME_LIBRARY_PATH}guile.init "$@";;
lar) exec $command -- -e "(require 'srfi-96)" "$@";;
mit) exec $command -load ${SCHEME_LIBRARY_PATH}mitscheme.init "$@";;
s48) if [ -f "${S48_VICINITY}slib.image" ]; then
exec scheme48 -h 4000000 -i ${S48_VICINITY}slib.image
else
echo "scheme48 found; in slib directory do: 'make slib48 && make install48'";
fi
exit 1;;
umb) echo "umb-scheme vicinities are too wedged to run slib"; exit 1;;
*) exit 1;;
esac
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