def raise_error(self, perr: ParseSyntaxException):
"""Parsing failed - try to be produce a helpful error messsage.
:param pe ParseSyntaxException: the Exception that was caught
:return: None
:rtype: None
"""
msg = f"ERROR: {type(perr)}\n"
message = self.banner_message(perr.lineno, perr.col, perr.line, msg)
perr.msg = message
raise perr
def postParse(self, instring, loc, token_list):
"""Create ConfigTree from tokens
:param instring:
:param loc:
:param token_list:
:return:
"""
config_tree = ConfigTree(root=self.root)
for element in token_list:
expanded_tokens = element.tokens if isinstance(element, ConfigInclude) else [element]
for tokens in expanded_tokens:
# key, value1 (optional), ...
key = tokens[0].strip() if isinstance(tokens[0], (unicode, basestring)) else tokens[0]
operator = '='
if len(tokens) == 3 and tokens[1].strip() in [':', '=', '+=']:
operator = tokens[1].strip()
values = tokens[2:]
elif len(tokens) == 2:
values = tokens[1:]
else:
raise ParseSyntaxException("Unknown tokens {tokens} received".format(tokens=tokens))
# empty string
if len(values) == 0:
config_tree.put(key, '')
else:
value = values[0]
if isinstance(value, list) and operator == "+=":
value = ConfigValues([ConfigSubstitution(key, True, '', False, loc), value], False, loc)
config_tree.put(key, value, False)
elif isinstance(value, unicode) and operator == "+=":
value = ConfigValues([ConfigSubstitution(key, True, '', True, loc), ' ' + value], True, loc)
config_tree.put(key, value, False)
elif isinstance(value, list):
config_tree.put(key, value, False)
else:
existing_value = config_tree.get(key, None)
if isinstance(value, ConfigTree) and not isinstance(existing_value, list):
# Only Tree has to be merged with tree
config_tree.put(key, value, True)
elif isinstance(value, ConfigValues):
conf_value = value
value.parent = config_tree
value.key = key
if isinstance(existing_value, list) or isinstance(existing_value, ConfigTree):
config_tree.put(key, conf_value, True)
else:
config_tree.put(key, conf_value, False)
else:
config_tree.put(key, value, False)
return config_tree