def __init__(self,
grammar=None,
lr_type=LR0,
whitespaces=False,
startsymbol=None):
if grammar:
logging.debug("Parsing Grammar")
parser = Parser(grammar, whitespaces)
parser.parse()
filename = "".join([
os.path.dirname(__file__), "/../pickle/",
str(hash(grammar) ^ hash(whitespaces)), ".pcl"
])
try:
logging.debug("Try to unpickle former stategraph")
f = open(filename, "r")
start = time.time()
self.graph = pickle.load(f)
end = time.time()
logging.debug("unpickling done in %s", end - start)
except IOError:
logging.debug("could not unpickle old graph")
logging.debug("Creating Stategraph")
self.graph = StateGraph(parser.start_symbol, parser.rules,
lr_type)
logging.debug("Building Stategraph")
self.graph.build()
logging.debug("Pickling")
pickle.dump(self.graph, open(filename, "w"))
if lr_type == LALR:
self.graph.convert_lalr()
logging.debug("Creating Syntaxtable")
self.syntaxtable = SyntaxTable(lr_type)
self.syntaxtable.build(self.graph)
self.stack = []
self.ast_stack = []
self.all_changes = []
self.undo = []
self.last_shift_state = 0
self.validating = False
self.last_status = False
self.error_node = None
self.whitespaces = whitespaces
self.status_by_version = {}
self.errornode_by_version = {}
self.indentation_based = False
self.pm = PluginManager()
self.pm.loadplugins(self)
self.pm.do_incparse_init()
self.previous_version = None
logging.debug("Incremental parser done")
def __init__(self, grammar, lr_type=LR0):
parser = Parser(grammar)
parser.parse()
self.graph = StateGraph(parser.start_symbol, parser.rules, lr_type)
self.graph.build()
if lr_type == LALR:
self.graph.convert_lalr()
self.syntaxtable = SyntaxTable(lr_type)
self.syntaxtable.build(self.graph)
self.stack = []
self.ast_stack = []
def from_dict(self, rules, startsymbol, lr_type, whitespaces, pickle_id, precedences):
self.graph = None
self.syntaxtable = None
if pickle_id:
filename = "".join([os.path.dirname(__file__), "/../pickle/", str(pickle_id ^ hash(whitespaces)), ".pcl"])
try:
f = open(filename, "r")
self.syntaxtable = pickle.load(f)
except IOError:
pass
if self.syntaxtable is None:
self.graph = StateGraph(startsymbol, rules, lr_type)
self.graph.build()
self.syntaxtable = SyntaxTable(lr_type)
self.syntaxtable.build(self.graph, precedences)
if pickle_id:
pickle.dump(self.syntaxtable, open(filename, "w"))
self.whitespaces = whitespaces
