def get_node_name(self, nid, typ="parse", error_fn=lambda item: None):
'''
Node name from node id.
'''
name = None
if nid is FIN:
return "FIN"
elif is_keyword(nid):
if typ == "parse":
return "kwd:" + flip(self.parse_nfa.keywords).get(
nid, str(nid))
else:
return "kwd:" + flip(self.lex_nfa.keywords).get(nid, str(nid))
elif is_token(nid):
if typ == "parse":
name = self.parse_token.tok_name.get(nid)
else:
name = self.lex_token.tok_name.get(nid)
elif is_symbol(nid):
if typ == "parse":
name = self.parse_symbol.sym_name.get(nid)
else:
name = self.lex_symbol.sym_name.get(nid)
if name:
return name
else:
error_fn(nid)
return "?(nid = %s)" % nid
def get_node_name(self, nid, typ = "parse", error_fn = lambda item: None):
'''
Node name from node id.
'''
name = None
if nid is FIN:
return "FIN"
elif is_keyword(nid):
if typ == "parse":
return "kwd:"+flip(self.parse_nfa.keywords).get(nid, str(nid))
else:
return "kwd:"+flip(self.lex_nfa.keywords).get(nid, str(nid))
elif is_token(nid):
if typ == "parse":
name = self.parse_token.tok_name.get(nid)
else:
name = self.lex_token.tok_name.get(nid)
elif is_symbol(nid):
if typ == "parse":
name = self.parse_symbol.sym_name.get(nid)
else:
name = self.lex_symbol.sym_name.get(nid)
if name:
return name
else:
error_fn(nid)
return "?(nid = %s)"%nid
def __init__(self, langlet, constants):
self.langlet = langlet
self.constants = constants
self.keywords = flip(langlet.keywords)
self.token_map = flip(langlet.parse_token.token_map)
self.names = langlet.parse_symbol.sym_name
self.names.update(langlet.parse_token.tok_name)
super(NFA2GrammarLangletObjTranslator, self).__init__(langlet)
def __init__(self, langlet, constants):
self.langlet = langlet
self.constants = constants
self.keywords = flip(langlet.keywords)
self.token_map = flip(langlet.parse_token.token_map)
self.names = langlet.parse_symbol.sym_name
self.names.update(langlet.parse_token.tok_name)
super(NFA2GrammarLangletObjTranslator, self).__init__(langlet)
def _load_parse_tables(self):
if self.package is None:
raise RuntimeError("Cannot load parse-tables. Langlet package could not be found")
# load token/symbols
if not self.parse_nfa:
# load nfas
nfas = loader.load_parse_tables(self.package)
self.lex_nfa = nfas["lex_nfa"]
self.parse_nfa = nfas["parse_nfa"]
self.keywords = flip(self.parse_nfa.keywords)
def _load_parse_tables(self):
if self.package is None:
raise RuntimeError(
"Cannot load parse-tables. Langlet package could not be found")
# load token/symbols
if not self.parse_nfa:
# load nfas
nfas = loader.load_parse_tables(self.package)
self.lex_nfa = nfas["lex_nfa"]
self.parse_nfa = nfas["parse_nfa"]
self.keywords = flip(self.parse_nfa.keywords)
