def next_(self, recurse=False):
if len(self.tokens) and not recurse:
t = self.tokens.pop(0)
if t[0] != VARIABLE:
return (t[0], t[1], self.location_())
return self.parse_variable(t[1])
try:
return Lexer.next_(self)
except FeatureLibError as e:
if u"Unexpected character" not in str(e):
raise e
location = self.location_()
text = self.text_
start = self.pos_
cur_char = text[start]
if cur_char == '$':
self.pos_ += 1
self.scan_over_(Lexer.CHAR_NAME_CONTINUATION_)
varname = text[start + 1:self.pos_]
if len(varname) < 1 or len(varname) > 63:
raise FeatureLibError("Bad variable name length", location)
return (VARIABLE, varname, location)
else:
raise FeatureLibError("Unexpected character: %r" % cur_char,
location)
def next_(self, recurse=False):
while (not self.empty_):
if self.tokens_ is not None:
res = self.tokens_.pop(0)
if not len(self.tokens_):
self.popstack()
if res[0] != VARIABLE:
return (res[0], res[1], self.location_())
return self.parse_variable(res[1])
try:
res = Lexer.next_(self)
except IndexError as e:
self.popstack()
continue
except StopIteration as e:
self.popstack()
continue
except FeatureLibError as e:
if u"Unexpected character" not in str(e):
raise e
# only executes if exception occurred
location = self.location_()
text = self.text_
start = self.pos_
cur_char = text[start]
if cur_char == '$':
self.pos_ += 1
self.scan_over_(Lexer.CHAR_NAME_CONTINUATION_)
varname = text[start+1:self.pos_]
if len(varname) < 1 or len(varname) > 63:
raise FeatureLibError("Bad variable name length", location)
res = (VARIABLE, varname, location)
else:
raise FeatureLibError("Unexpected character: %r" % cur_char, location)
return res
raise StopIteration
