#!/bin/sh
#
# JavaClass - figure out the Java class name for a given filename
#
# Uses $CLASSPATH, looking at each element and trying to match it against
# the given filename and the current working directory.  Sample run:
#
# % JavaClass Acme/Utils.java
# Acme.Utils
# % cd Acme
# % JavaClass Utils.java
# Acme.Utils
#
# Copyright (C) 1996 by Jef Poskanzer <jef@mail.acme.com>.  All rights reserved.

if [ $# -ne 1 ] ; then
    echo "usage:  $0 filename" >&2
    exit 1
fi

# Get the filename.
f="$1"

# Make sure it's a full path.
case "$f" in
    /*)
    ;;
    *)
    f="`pwd`/$f"
    ;;
esac

# Make sure there is a CLASSPATH.
if [ "$CLASSPATH" = "" ] ; then
    CLASSPATH="$HOME/java"
    export CLASSPATH
fi

# For each element in CLASSPATH
for d in `echo $CLASSPATH | sed -e 's/:/ /g'` ; do
    case "$f" in
	$d*)
	echo "$f" | sed -e "s,^$d,," -e 's,^/,,' -e 's/\.java$//' -e 's,/,.,g'
	exit 0
	;;
    esac
done

echo "$0: class not found" >&2
exit 1