def s_core_and(env, *items):
res = types.SBoolean(True)
for item in items:
if not item.to_boolean():
return types.SResult(env, types.SBoolean(False))
else:
res = item
return types.SResult(env, res)
def s_equal(env, *items):
count = len(items)
if count == 0 or count == 1:
return types.SResult(env, types.SBoolean(True))
for i in range(count - 1):
if not items[i].equal(items[i + 1]):
return types.SResult(env, types.SBoolean(False))
return types.SResult(env, types.SBoolean(True))
def s_core_less(env, *items):
count = len(items)
if count <= 1:
return types.SResult(env, types.SBoolean(True))
else:
for i in range(count - 1):
if items[i].value >= items[i + 1].value:
return types.SResult(env, types.SBoolean(False))
return types.SResult(env, types.SBoolean(True))
def t_BOOLEAN(t):
r'(true)|(false)'
if t.value == 'true':
t.value = True
else:
t.value = False
t.value = types.SBoolean(t.value)
return t
def s_core_or(env, *items):
for item in items:
if item.to_boolean():
return types.SResult(env, item)
return types.SResult(env, types.SBoolean(False))