def format_error_msg(self, sym, cursor, sub_trees, tok, selection, tokstream):
if sub_trees:
cst = sub_trees
else:
try:
cst = self._derive_tree(sym, cursor, sub_trees)[:-1]
except IncompleteTraceError:
cst = None
if cst:
report = NFAErrorReport(self.langlet, "parse")
if isinstance(cst[0],list):
rule = report.error_message(cst[-1], tok, selection)
else:
rule = report.error_message(cst, tok, selection)
else:
rule = ""
word = tok[1]
if tok[1] == '\n':
word = r"\n"
line = tokstream.untokenize_current_line().rstrip()
prefix = "line[%s]: "%tok[2]
error_line = "\n"+" \n "+prefix+"'"+line+"'"+'\n\n'+" "*(tok[3][0]+5+len(prefix))+"^"*(tok[3][1]-tok[3][0])+"\n"
nmt = "Parser needs more token to finish. " if tok[1] == "<EOF>" else ""
if self._filename:
s = "\n\n "+nmt+"Failed to parse input '%s' at (line %d , column %d) in file:\n\n %s\n"%(word,tok[2],tok[3][0]+1,self._filename)
self._filename = None
else:
s = nmt+"Failed to parse input '%s' at (line %d , column %d)."%(word,tok[2],tok[3][0]+1)
terminals = set()
for item in selection:
if item in self.terminals:
terminals.add(item)
else:
terminals.update(self.reach[item] & self.terminals)
return s+error_line+rule+self.format_terminals(terminals)
def _handle_error(self, sym, cursor, sub_trees, tok, selection):
self._error = True
if sub_trees:
cst = sub_trees
else:
try:
cst = self._derive_tree(sym, cursor, sub_trees, False)[:-1]
except IncompleteTraceError:
cst = None
if cst:
nfareport = NFAErrorReport(self.langlet, "lex")
if isinstance(cst[0], list):
rule = nfareport.error_message(cst[-1], tok, selection)
else:
rule = nfareport.error_message(cst, tok, selection)
else:
rule = "" # TODO: this is unacceptable
self.dump_error_message(tok, selection, rule)
def format_error_msg(self, sym, cursor, sub_trees, tok, selection,
tokstream):
if sub_trees:
cst = sub_trees
else:
try:
cst = self._derive_tree(sym, cursor, sub_trees)[:-1]
except IncompleteTraceError:
cst = None
if cst:
report = NFAErrorReport(self.langlet, "parse")
if isinstance(cst[0], list):
rule = report.error_message(cst[-1], tok, selection)
else:
rule = report.error_message(cst, tok, selection)
else:
rule = ""
word = tok[1]
if tok[1] == '\n':
word = r"\n"
line = tokstream.untokenize_current_line().rstrip()
prefix = "line[%s]: " % tok[2]
error_line = "\n" + " \n " + prefix + "'" + line + "'" + '\n\n' + " " * (
tok[3][0] + 5 + len(prefix)) + "^" * (tok[3][1] - tok[3][0]) + "\n"
nmt = "Parser needs more token to finish. " if tok[1] == "<EOF>" else ""
if self._filename:
s = "\n\n " + nmt + "Failed to parse input '%s' at (line %d , column %d) in file:\n\n %s\n" % (
word, tok[2], tok[3][0] + 1, self._filename)
self._filename = None
else:
s = nmt + "Failed to parse input '%s' at (line %d , column %d)." % (
word, tok[2], tok[3][0] + 1)
terminals = set()
for item in selection:
if item in self.terminals:
terminals.add(item)
else:
terminals.update(self.reach[item] & self.terminals)
return s + error_line + rule + self.format_terminals(terminals)
