def add_shex(self, schema: str) -> "PrefixLibrary":
""" Add a ShExC schema to the library
:param schema: ShExC schema text, URL or file name
:return: prefix library object
"""
if '\n' in schema or '\r' in schema or ' ' in schema:
shex = schema
else:
shex = load_shex_file(schema)
for line in shex.split('\n'):
line = line.strip()
m = re.match(r'PREFIX\s+(\S+):\s+<(\S+)>', line)
if not m:
m = re.match(r"@prefix\s+(\S+):\s+<(\S+)>\s+\.", line)
if m:
setattr(self, m.group(1).upper(), Namespace(m.group(2)))
return self
def load(self,
schema_file: Union[str, TextIO],
schema_location: Optional[str] = None) -> ShExJ.Schema:
""" Load a ShEx Schema from schema_location
:param schema_file: name or file-like object to deserialize
:param schema_location: URL or file name of schema. Used to create the base_location
:return: ShEx Schema represented by schema_location
"""
if isinstance(schema_file, str):
schema_file = self.location_rewrite(schema_file)
self.schema_text = load_shex_file(schema_file)
else:
self.schema_text = schema_file.read()
if self.base_location:
self.root_location = self.base_location
elif schema_location:
self.root_location = os.path.dirname(schema_location) + '/'
else:
self.root_location = None
return self.loads(self.schema_text)