#!/usr/bin/gawk -f

# This program should generate Maketests

BEGIN {
	# read the list of files
	for (i = 2; i < ARGC; i++)
		files[ARGV[i]]

	# throw it away
	ARGC = 2

	ntests = 0

	Locale["C"] = "C"
	Locale["EN"] = "en_US.UTF-8"
	Locale["FR"] = "fr_FR.UTF-8"
	Locale["GR"] = "el_GR.iso88597"
	Locale["JA"] = "ja_JP.UTF-8"
	Locale["RU"] = "ru_RU.UTF-8"
}

# process the file Makefile.am:

/^[[:upper:]_]*_TESTS *=/,/[^\\]$/ {
	gsub(/(^[[:upper:]_]*_TESTS *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		tests[++ntests] = $i
	next
}

/^NEED_DEBUG *=/,/[^\\]$/ {
	gsub(/(^NEED_DEBUG *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		debug[$i]
	next
}

/^NEED_LINT *=/,/[^\\]$/ {
	gsub(/(^NEED_LINT *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		lint[$i]
	next
}

/^NEED_LINT_OLD *=/,/[^\\]$/ {
	gsub(/(^NEED_LINT_OLD *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		lint_old[$i]
	next
}

/^NEED_MPFR *=/,/[^\\]$/ {
	gsub(/(^NEED_MPFR *=|\\$)/,"")
	for (i = 1; i <= NF; i++) {
		simple_mpfr[$i]
		tests[++ntests] = $i
	}
	next
}

/^NEED_NONDEC *=/,/[^\\]$/ {
	gsub(/(^NEED_NONDEC *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		nondec[$i]
	next
}

/^NEED_PRETTY *=/,/[^\\]$/ {
	gsub(/(^NEED_PRETTY *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		pretty[$i]
	next
}

/^NEED_POSIX *=/,/[^\\]$/ {
	gsub(/(^NEED_POSIX *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		posix[$i]
	next
}

/^NEED_RE_INTERVAL *=/,/[^\\]$/ {
	gsub(/(^NEED_RE_INTERVAL *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		re_interval[$i]
	next
}

/^NEED_TRADITIONAL *=/,/[^\\]$/ {
	gsub(/(^NEED_TRADITIONAL *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		traditional[$i]
	next
}

/^GENTESTS_UNUSED *=/,/[^\\]$/ {
	gsub(/(^GENTESTS_UNUSED *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
		unused[$i]
	next
}

/^CHECK_MPFR *=/,/[^\\]$/ {
	gsub(/(^CHECK_MPFR *=|\\$)/,"")
	for (i = 1; i <= NF; i++)
	{
		mpfr[$i]
	}
	next
}

# Tests needing a particular locale
/^NEED_LOCALE_.* *=/,/[^\\]$/ {
	if (/^NEED/)
		cur_locale = gensub(/^NEED_LOCALE_([[:alnum:]]+).*/, "\\1", 1, $1)

	gsub(/^NEED_LOCALE_.* *=|\\$/, "")
	for (i = 1; i <= NF; i++) {
		locale_tests[cur_locale][$i]
		all_locale_tests[$i]
 	}
}

/^[[:alpha:]_][[:alnum:]_]*:/ {
	# remember all targets from Makefile.am
	sub(/:.*/,"")
	targets[$0]
}

# Now write the output file:
END {
	# this line tells automake to keep the comment with the rules:
	print "Gt-dummy:"
	print "# file Maketests, generated from Makefile.am by the Gentests program"

	for (i = 1; i <= ntests; i++) {
		x = tests[i]
		if (!(x in targets))
			generate(x)
	}

	print "# end of file Maketests"
}

function generate_shell(x,	s)
{
	delete files[x".sh"]

	s = ""
	if (x".in" in files) {
		s = "\"$(srcdir)\"/$@.in"
		delete files[x".in"]
	}

	print x ":"
	printf "\t@echo $@\n"

	printf "\t@-$(LOCALES) AWK=\"$(AWKPROG)\" \"$(srcdir)\"/$@.sh %s > _$@ 2>&1 || echo EXIT CODE: $$? >>_$@\n", s
	printf "\t@-$(CMP) \"$(srcdir)\"/$@.ok _$@ && rm -f _$@\n\n"
	
}

function generate(x,	s, i, locale_string)
{
	if (x".sh" in files)
		return generate_shell(x)

	if (!(x".awk" in files))
		printf "WARNING: file `%s.awk' not found.\n", x > "/dev/stderr"
	else
		delete files[x".awk"]

	print x ":"

	s = ""
	if (x in lint) {
		s = s " --lint"
		delete lint[x]
	}
	if (x in lint_old) {
		s = s " --lint-old"
		delete lint_old[x]
	}
	if (x in simple_mpfr) {
		s = s " -M"
		delete simple_mpfr[x]
	}
	if (x in posix) {
		s = s " --posix"
		delete posix[x]
	}
	if (x in traditional) {
		s = s " --traditional"
		delete traditional[x]
	}
	if (x in pretty) {
		s = s " --pretty-print=_$@"
		delete pretty[x]
	}
	if (x in debug) {
		s = s " --debug"
		delete debug[x]
	}
	if (x in nondec) {
		s = s " --non-decimal-data"
		delete nondec[x]
	}
	if (x in re_interval) {
		s = s " --re-interval"
		delete re_interval[x]
	}
	if (x".in" in files) {
		s = s " < \"$(srcdir)\"/$@.in"
		delete files[x".in"]
	}

	printf "\t@echo $@\n"

	# default is the leading tab and @
	locale_string = "\t@"
	if (x in all_locale_tests) {
		delete all_locale_tests[x]
		for (i in locale_tests) {
			if (x in locale_tests[i]) {
				locale_string = sprintf("\t@[ -z \"$$GAWKLOCALE\" ] && GAWKLOCALE=%s; export GAWKLOCALE; \\\n\t", Locale[i])
				delete locale_tests[i][x]
				break
			}
		}
	}

	if (x in mpfr) {
		delete mpfr[x]
		printf "%s", locale_string
		printf "AWKPATH=\"$(srcdir)\" $(AWK) $(AWKFLAGS) -f $@.awk %s >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@\n", s
		printf "\t@-if test -z \"$$AWKFLAGS\" ; then $(CMP) \"$(srcdir)\"/$@.ok _$@ && rm -f _$@ ; else \\\n"
		printf "\t$(CMP) \"$(srcdir)\"/$@-mpfr.ok _$@ && rm -f _$@ ; \\\n"
		printf "\tfi\n\n"
	} else {
		printf "%s", locale_string
		printf "AWKPATH=\"$(srcdir)\" $(AWK) -f $@.awk %s >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@\n", s
		printf "\t@-$(CMP) \"$(srcdir)\"/$@.ok _$@ && rm -f _$@\n\n"
	}
}

END {
	for (x in lint)
		if (!(x in targets))
			printf "WARNING: --lint target `%s' is missing.\n", x > "/dev/stderr"
	for (x in lint_old)
		if (!(x in targets))
			printf "WARNING: --lint-old target `%s' is missing.\n", x > "/dev/stderr"
	for (x in simple_mpfr)
		if (!(x in targets))
			printf "WARNING: -M target `%s' is missing.\n", x > "/dev/stderr"
	for (x in posix)
		if (!(x in targets))
			printf "WARNING: --posix target `%s' is missing.\n", x > "/dev/stderr"
	for (x in traditional)
		if (!(x in targets))
			printf "WARNING: --traditional target `%s' is missing.\n", x > "/dev/stderr"
	for (x in pretty)
		if (!(x in targets))
			printf "WARNING: --pretty-print target `%s' is missing.\n", x > "/dev/stderr"
	for (x in debug)
		if (!(x in targets))
			printf "WARNING: --debug target `%s' is missing.\n", x > "/dev/stderr"
	for (x in nondec)
		if (!(x in targets))
			printf "WARNING: --non-decimal-data target `%s' is missing.\n", x > "/dev/stderr"

	for (x in re_interval)
		if (!(x in targets))
			printf "WARNING: --re-interval target `%s' is missing.\n", x > "/dev/stderr"
	for (x in locale_tests)
		for (y in locale_tests[x])
			if (!(y in targets))
				printf("WARNING: Locale `%s' target `%s' is missing.\n", x, y) > "/dev/stderr"

	for (x in files)
		if (!(x in unused) && \
		    !(gensub(/\.(awk|in|sh)$/,"",1,x) in targets))
			printf "WARNING: unused file `%s'.\n", x > "/dev/stderr"
}