def argument(self, value):
"""\
Prepare a parameter for the linker. Expressions are evaluated.
"""
try:
return infix2postfix(value, variable_prefix=u'GET-SYMBOL ')
except ValueError, e:
raise AssemblerError('invalid expression: %r' % (value,))
def eval(self, expression):
self.clear()
try:
rpn_expr = infix2postfix.infix2postfix(expression,
scanner=Scanner,
precedence=precedence,
variable_prefix='LOOKUP ')
except ValueError, e:
raise PreprocessorError('error in expression: %r' % (expression, ))
def eval(self, expression):
self.clear()
try:
rpn_expr = infix2postfix.infix2postfix(
expression,
scanner=Scanner,
precedence = precedence,
variable_prefix='LOOKUP ')
except ValueError, e:
raise PreprocessorError('error in expression: %r' % (expression,))
def eval(self, expression):
self.clear()
try:
rpn_expr = infix2postfix.infix2postfix(expression,
scanner=Scanner,
precedence=precedence,
variable_prefix='LOOKUP ')
except ValueError:
raise PreprocessorError(
'error in expression: {!r}'.format(expression))
#~ print "RPN: %r" % (rpn_expr,) # XXX debug
# hack: replace "LOOKUP <word> DEFINED" with "DEFINED <word>"
rpn_expr = self.re_defined_translation.sub(self._translate_defined,
rpn_expr)
self.interpret_sequence(rpn_expr.split(' '))
if len(self) != 1:
raise PreprocessorError(
'error in expression: {!r} stack: {}'.format(expression, self))
return self.pop()
