# The program name.
PROG = program

# The class dictionary file.
CDFILE = $(PROG).cd

# The behavior files.
BEHFILES = $(PROG).beh

# This is the name of the class which has the "main" method.
MAIN = Main

# This is the directory into which .java files are generated.
GENDIR = ./gen

# This is the directory into which .class files are generated.
CLASSDIR = ./gen

# This is the package your generated code belongs to.  It should match
# the package specified at the beginning of your .cd file.
PACKAGE =

# Arguments for testing the program.
TEST_ARGS = < $(PROG).input
# Files the program test depends on.  Probably some subset of $(TEST_ARGS).
TEST_DEPS = $(PROG).input

# Make sure these are all in your $PATH:
#  interpreter
JAVA = java
#  compiler
JAVAC = CLASSPATH=$(CLASSDIR):$$CLASSPATH javac -J-mx32m -d $(CLASSDIR) -depend -deprecation
#  Demeter compiler
DEMJAVA =  demjava -aspect -outputdir  $(GENDIR)
#  parser generator
PARSEGEN = javacc

####
# You shouldn't have to change anything below here.
####

ifeq (,$(PACKAGE))
PACKAGE_PREFIX =
PACKAGE_DIR = $(CLASSDIR)
else
PACKAGE_PREFIX = $(PACKAGE).
PACKAGE_DIR = $(CLASSDIR)/$(subst .,/,$(PACKAGE))
endif

MKDIR = mkdir -m 755 -p

MAIN_TARGET = $(PACKAGE_DIR)/$(MAIN).class
SRC = $(GENDIR)/*.java
GRAMMAR = grammar.jj
PARSER = Parser.java

all: $(MAIN_TARGET)

$(MAIN_TARGET): $(GENDIR)/code $(GENDIR)/$(PARSER)
	@$(MAKE) --no-print-directory $(GENDIR)/compile
	@touch $(MAIN_TARGET)

$(GENDIR)/code: $(CDFILE) $(BEHFILES)
	$(DEMJAVA) -code -grammar $(CDFILE) $(BEHFILES)
	@touch $@

$(GENDIR)/$(PARSER): $(GENDIR)/$(GRAMMAR)
	(cd $(GENDIR); $(PARSEGEN) $(GRAMMAR))

$(GENDIR)/compile: $(SRC)
	@$(MKDIR) $(CLASSDIR)
	$(JAVAC) $?
	@touch $@

$(SRC):

test: all $(TEST_DEPS)
	CLASSPATH=$(CLASSDIR):$$CLASSPATH $(JAVA) $(PACKAGE_PREFIX)$(MAIN) $(TEST_ARGS)

clean:
	$(RM) -r $(GENDIR)
	$(RM) *~ core

new: clean all

.PHONY: all test clean new