#!/usr/bin/bash

## Save the current PATH only once in OLD_PATH_VAR and use OLD_PATH_VAR
## instead of PATH for the first PATH extension. If you extend the PATH
## environment variable _after_ you have executed setvars, the next
## "setvars" invocation will overwrite these additions with OLD_PATH_VAR.
## Similar remarks with respect to CLASSPATH. Saving PATH and CLASSPATH
## the first time allows you to invoke "setvars" several times without
## leaving the current shell :

if [ -z "$OLD_PATH_VAR" ]
then
	OLD_PATH_VAR=$PATH
	export OLD_PATH_VAR
fi

if [ -z "$OLD_CLASSPATH_VAR" ]
then
	OLD_CLASSPATH_VAR=$CLASSPATH
	export OLD_CLASSPATH_VAR
fi

## environment variable examples :

## DLP_ROOT=<YOUR_PATH>/dlp1r18N :

DLP_ROOT=/home/USER/dlp/dlp1r18N
DLP_JARS=c:\\cygwin\\home\\USER\\dlp\\dlp1r18N

export DLP_ROOT		## unix style
export DLP_JARS		## cygwin style

## dlp, dlpc commands :
PATH=$DLP_ROOT/bin:$OLD_PATH_VAR	# first PATH

## remove the next "jikes" lines in case you prefer
## SUN's javac compiler for compiling Java programs :
## Jikes executable in directory :
JIKES_EXEC=/usr/local/bin	## or $JIKES_ROOT/bin

## used by dlpc :
export JIKES_EXEC

PATH=$JIKES_EXEC:$PATH

## location of SWI-Prolog:
SWI_EXEC=/usr/local/bin

## used by dlpc:
export SWI_EXEC

PATH=$SWI_EXEC:$PATH

## where to find java, javac, etc. :
JAVA_ROOT=/cygdrive/c/jdk1.3.0_02		## unix style
JAVA_JARS=c:\\jdk1.3.0_02			## cygwin style

export JAVA_ROOT
export JAVA_JARS

PATH=$JAVA_ROOT/bin:$PATH
export PATH

## next 3 lines are only required for special purpose Java
## interpreters (or "oldjava") that use the Java 1.2.2
## libraries and jikes :

CLASSPATH=$JAVA_JARS\\src.jar\;$OLD_CLASSPATH_VAR	# first CLASSPATH
CLASSPATH=$JAVA_JARS\\jre\\lib\\i18n.jar\;$CLASSPATH
CLASSPATH=$JAVA_JARS\\jre\\lib\\rt.jar\;$CLASSPATH

## (Precompiled) DLP + examples class files:
CLASSPATH=$DLP_JARS\\classes\;$CLASSPATH
CLASSPATH=$DLP_JARS\\classes\\dlpsys.jar\;$CLASSPATH
CLASSPATH=$DLP_JARS\\examples\\classes\;$CLASSPATH

## In case you would like to write and compile DLP programs in
## directory MY_PROG_DIR, remove the # comment character
## and adjust the following line :

# CLASSPATH=MY_PROG_DIR\\classes\;$CLASSPATH

export CLASSPATH

# classes for jikes:
JIKESPATH=$CLASSPATH
export JIKESPATH