def t_UPPERCASE_IDENTIFIER(self, t):
r'[A-Z][-a-zA-z0-9]*'
if t.value in self.forbidden_words:
raise error.PySmiLexerError("%s is forbidden" % t.value,
lineno=t.lineno)
if t.value[-1] == '-':
raise error.PySmiLexerError(
"Identifier should not end with '-': %s" % t.value,
lineno=t.lineno)
t.type = self.reserved.get(t.value, 'UPPERCASE_IDENTIFIER')
return t
def t_LOWERCASE_IDENTIFIER(self, t):
r'[a-z][-a-zA-z0-9]*'
if t.value[-1] == '-':
raise error.PySmiLexerError(
"Identifier should not end with '-': %s" % t.value,
lineno=t.lineno)
return t
def t_NUMBER(self, t):
r'-?[0-9]+'
t.value = int(t.value)
neg = 0
if t.value < 0:
neg = 1
val = abs(t.value)
if val <= UNSIGNED32_MAX:
if neg:
t.type = 'NEGATIVENUMBER'
elif val <= UNSIGNED64_MAX:
if neg:
t.type = 'NEGATIVENUMBER64'
else:
t.type = 'NUMBER64'
else:
raise error.PySmiLexerError("Number %s is too big" % t.value,
lineno=t.lineno)
return t
def t_error(self, t):
raise error.PySmiLexerError(
"Illegal character '%s', %s characters left unparsed at this stage"
% (t.value[0], len(t.value) - 1),
lineno=t.lineno)
