def clips_value(env: ffi.CData, value: type = ffi.NULL) -> ffi.CData:
"""Convert a Python value into CLIPS.
If no value is provided, an empty value is returned.
"""
val = ffi.new("CLIPSValue *")
if value is not ffi.NULL:
val.value = CLIPS_VALUES.get(type(value))(env, value)
return val
def clips_udf_value(env: ffi.CData,
value: type = ffi.NULL,
udf_value: ffi.CData = ffi.NULL) -> ffi.CData:
"""Convert a Python value into a CLIPS UDFValue.
If no value is provided, an empty value is returned.
"""
if udf_value is ffi.NULL:
return ffi.new("UDFValue *")
udf_value.value = CLIPS_VALUES.get(type(value))(env, value)
return udf_value
def activation_pp_string(env, activation):
buf = ffi.new('char[1024]')
lib.EnvGetActivationPPForm(env, buf, 1024, activation)
return ffi.string(buf).decode()
def __init__(self, env, data=None, dtype=None):
self._env = env
self._type = dtype
self._data = data if data is not None else ffi.new("DATA_OBJECT *")
def description(self):
buf = ffi.new('char[1024]')
lib.EnvGetDefmethodDescription(
self._env, buf, 1024, self._gnc, self._idx)
return ffi.string(buf).decode()
def instance_pp_string(env, ist):
buf = ffi.new('char[1024]')
lib.EnvGetInstancePPForm(env, buf, 1024, ist)
return ffi.string(buf).decode()
def fact_pp_string(env, fact):
buf = ffi.new('char[1024]')
lib.EnvGetFactPPForm(env, buf, 1024, fact)
return ffi.string(buf).decode()
