def _parse_phases(self, v_str):
if v_str == 'all':
self.val[kw.PHASES] = v_str # list(all_phase_labels)
else:
phase_labels = ParseUtil.comma_split_strip(v_str)
for phase_label in phase_labels:
if len(phase_label) == 0:
return "Expected comma-separated list of phase labels, found {}".format(
phase_labels)
# else:
# if phase_label not in all_phase_labels:
# return "Undefined phase label '{}'.".format(phase_label)
self.val[kw.PHASES] = phase_labels
return None
def __init__(self, phase_obj, lineno, label, after_label, all_linelabels, parameters, global_variables):
self.lineno = lineno
self.label = label
self.parameters = parameters
self.all_linelabels = all_linelabels
self.is_help_line = False
self.stimulus = None # A dict with an intensity for each element in stimulus_elememts
self.action = None
self.action, logic = ParseUtil.split1_strip(after_label, sep=PHASEDIV)
if logic is None:
raise ParseException(lineno, f"Missing separator '{PHASEDIV}' on phase line.")
action_list = ParseUtil.comma_split_strip(self.action)
first_element, _, _ = ParseUtil.parse_element_and_intensity(action_list[0], variables=None,
safe_intensity_eval=True)
self.is_help_line = (len(action_list) == 1) and (first_element not in parameters.get(STIMULUS_ELEMENTS))
if self.is_help_line:
self.stimulus = None
if action_list[0] != '':
check_action(action_list[0], parameters, global_variables, lineno, all_linelabels)
else:
self.stimulus, err = ParseUtil.parse_elements_and_intensities(self.action, global_variables,
safe_intensity_eval=True)
if err:
raise ParseException(lineno, err)
for element in self.stimulus:
if element not in parameters.get(STIMULUS_ELEMENTS):
raise ParseException(lineno, f"Expected a stimulus element, got '{element}'.")
self.action = None
if len(logic) == 0:
raise ParseException(lineno, f"Line with label '{label}' has no conditions.")
self.conditions = PhaseLineConditions(phase_obj, lineno, self.is_help_line, logic, parameters,
all_linelabels, global_variables)
def _parse(self, lineno, is_help_line, condition_and_actions, logicpart_index, n_logicparts, parameters,
all_linelabels, global_variables):
'''
Args:
condition_and_actions (str): Examples are
"b=5: x:2, y=2, ROWLBL",
"x:2, y:2, ROWLBL",
"@break"
"x=1: @break"
"x:1"
"@break, x:1"
'''
self.condition = None
ca_list = ParseUtil.comma_split_strip(condition_and_actions)
found_condition = False
any_rowlbl_prob = False
found_rowlbl = False
goto_list = list()
goto_list_index = list()
for i, ca in enumerate(ca_list):
err = f"Invalid statement '{ca}'."
n_colons = ca.count(':')
if n_colons == 0:
contains_condition = False
action = ca
elif n_colons == 1:
before_colon, after_colon = ParseUtil.split1_strip(ca, ':')
contains_condition = self._is_condition(before_colon, parameters)
if contains_condition:
if self.condition is not None: # Cannot have multiple conditions
raise ParseException(lineno, f"Multiple conditions ('{self.condition}' and '{before_colon}') found in '{condition_and_actions}'.")
self.condition = before_colon
action = after_colon
else:
action = ca
elif n_colons == 2:
colon_inds = [m.start() for m in re.finditer(':', ca)]
if colon_inds[1] - colon_inds[0] == 1:
raise ParseException(lineno, err)
before_first_colon, after_first_colon = ParseUtil.split1_strip(ca, ':')
if not self._is_condition(before_first_colon, parameters):
raise ParseException(lineno, err)
if self.condition is not None: # Cannot have multiple conditions
raise ParseException(lineno, f"Multiple conditions ('{self.condition}' and '{before_first_colon}') found in '{condition_and_actions}'.")
contains_condition = True
self.condition = before_first_colon
action = after_first_colon
else:
raise ParseException(lineno, err)
if contains_condition and found_rowlbl:
raise ParseException(lineno, f"Found condition '{self.condition}' after row label '{','.join(goto_list)}'.")
found_condition = found_condition or contains_condition
is_rowlbl, is_rowlbl_prob = self._is_rowlbl(action, all_linelabels)
any_rowlbl_prob = (any_rowlbl_prob or is_rowlbl_prob)
if is_rowlbl:
found_rowlbl = True
goto_list.append(action)
goto_list_index.append(i)
else:
check_action(action, parameters, global_variables, lineno, all_linelabels)
if found_rowlbl:
err = f"Row label(s) must be the last action(s). Found '{action}' after row-label."
raise ParseException(lineno, err)
if found_condition: # self.condition is not None:
self.conditional_actions.append(action)
else:
self.unconditional_actions.append(action)
is_last_action = (i == len(ca_list) - 1)
if is_last_action and not is_rowlbl:
raise ParseException(lineno, f"Last action must be a row label, found '{action}'.")
if found_condition:
self.condition_is_behavior = (self.condition in parameters.get(BEHAVIORS))
cond_depends_on_behavior, err = ParseUtil.depends_on(self.condition, parameters.get(BEHAVIORS))
if err is not None:
raise ParseException(lineno, err)
if cond_depends_on_behavior and is_help_line:
raise ParseException(lineno, "Condition on help line cannot depend on response.")
goto_str = ','.join(goto_list)
# A deterministic ROWLBL cannot have elif/else continuation
if (not found_condition) and found_rowlbl and not any_rowlbl_prob:
if logicpart_index < n_logicparts - 1:
err = f"The unconditional goto row label '{goto_str}' cannot be continued."
raise ParseException(lineno, err)
if len(goto_list) > 0:
self._parse_goto(goto_str, lineno, all_linelabels, global_variables)