def main():
import pasparser
import sys
from errors import subscribe_errors
lexer = paslex.make_lexer()
parser = pasparser.make_parser()
with subscribe_errors(lambda msg: sys.stdout.write(msg+"\n")):
program = parser.parse(open(sys.argv[1]).read())
check_program(program)
if (len(sys.argv) < 2 or len(sys.argv) > 3):
show_usage(sys.argv[0])
raise SystemExit(1)
elif (re.match(r'.*\.pas', sys.argv[-1])):
try:
filename = sys.argv[-1]
outname = os.path.splitext(filename)[0] + '.s'
file = open(filename)
data = file.read()
file.close()
if ("-lex" in sys.argv):
paslex.run_lexer(data)
else:
parser = pasparser.make_parser()
clear_errors()
try:
with subscribe_errors(lambda msg: sys.stdout.write(msg+"\n")):
root_ast = parser.parse(data)
check.check_program(root_ast);
errors = errors_reported();
if errors == 0:
if ("-ast" in sys.argv):
# dump_class_tree(root_ast)
dot = DotVisitor()
dot.generic_visit(root_ast)
print dot
# Generate code
outfile = open(outname, "w")
mpasgen.generate(outfile, root_ast)
if (len(sys.argv) < 2 or len(sys.argv) > 3):
show_usage(sys.argv[0])
raise SystemExit(1)
elif (re.match(r'.*\.pas', sys.argv[-1])):
try:
filename = sys.argv[-1]
outname = os.path.splitext(filename)[0] + '.s'
file = open(filename)
data = file.read()
file.close()
if ("-lex" in sys.argv):
paslex.run_lexer(data)
else:
parser = pasparser.make_parser()
clear_errors()
try:
with subscribe_errors(
lambda msg: sys.stdout.write(msg + "\n")):
root_ast = parser.parse(data)
check.check_program(root_ast)
errors = errors_reported()
if errors == 0:
if ("-ast" in sys.argv):
# dump_class_tree(root_ast)
dot = DotVisitor()
dot.generic_visit(root_ast)
print dot
# Generate code
outfile = open(outname, "w")