def main(args):
"""Main entry point for Boink. Apply necessary operations
with the given arguments.
Args:
args (Namespace): Arguments supplied by the user.
"""
if args.command == 'run':
try:
with open(args.file, 'r') as file:
# Extra newline for parsing.
inp = file.read() + '\n'
except FileNotFoundError:
print(Colr(f"File '{args.file}' not found.", fore="red"))
return
# Handler for exceptions during lexing, parsing and semantic analysis.
error_handler = ErrorHandler()
lexer_ = Lexer(inp, error_handler)
# Assign lexer to convert positions to line and offset.
error_handler.lexer = lexer_
parser_ = Parser(lexer_, error_handler)
# Root node of the program a.k.a. the program itself.
# Argument is the program name which is equivalent to file's name.
root = parser_.parse(os.path.basename(args.file))
parser_.log_tree(root)
symbol_tree_builder = SymbolTableBuilder(error_handler)
symbol_tree_builder.visit(root)
symbol_tree_builder.log_info()
if not error_handler.errors:
interpreter_ = Interpreter(root, error_handler)
else:
error_handler.log_all()
else:
print(Colr(f"Command {repr(args.command)} doesn't exist", fore="red"))
return
