Function ParseOperatorExpression

tools/test.py:1222–1232

(scan)

BINARIES = ['==', '!=']
def ParseOperatorExpression(scan):
  left = ParseAtomicExpression(scan)
  if not left: return None
  while scan.HasMore() and (scan.Current() in BINARIES):
    op = scan.Current()
    scan.Advance()
    right = ParseOperatorExpression(scan)
    if not right:
      return None
    left = Operation(left, op, right)
  return left


def ParseConditionalExpression(scan):