Function ParseCondition

tools/test.py:1261–1275

Parses a logical expression into an Expression object

(expr)

def ParseCondition(expr):
  """Parses a logical expression into an Expression object"""
  tokens = Tokenizer(expr).Tokenize()
  if not tokens:
    print("Malformed expression: '%s'" % expr)
    return None
  scan = Scanner(tokens)
  ast = ParseLogicalExpression(scan)
  if not ast:
    print("Malformed expression: '%s'" % expr)
    return None
  if scan.HasMore():
    print("Malformed expression: '%s'" % expr)
    return None
  return ast


class Configuration(object):