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Diffstat (limited to 'creactistore/_templates/lib/rdflib/parser.py')
| -rw-r--r-- | creactistore/_templates/lib/rdflib/parser.py | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/creactistore/_templates/lib/rdflib/parser.py b/creactistore/_templates/lib/rdflib/parser.py deleted file mode 100644 index 1fe3cec..0000000 --- a/creactistore/_templates/lib/rdflib/parser.py +++ /dev/null @@ -1,176 +0,0 @@ -""" -Parser plugin interface. - -This module defines the parser plugin interface and contains other -related parser support code. - -The module is mainly useful for those wanting to write a parser that -can plugin to rdflib. If you are wanting to invoke a parser you likely -want to do so through the Graph class parse method. - -""" - -import os -import __builtin__ -import warnings -from urllib import pathname2url, url2pathname -from urllib2 import urlopen, Request, HTTPError -from urlparse import urljoin -try: - from io import BytesIO -except: - from StringIO import StringIO as BytesIO -from xml.sax import xmlreader -from xml.sax.saxutils import prepare_input_source -import types - -from rdflib import __version__ -from rdflib.term import URIRef -from rdflib.namespace import Namespace - -__all__ = ['Parser', 'InputSource', 'StringInputSource', 'URLInputSource', 'FileInputSource'] - -class Parser(object): - - def __init__(self): - pass - - def parse(self, source, sink): - pass - - -class InputSource(xmlreader.InputSource, object): - """ - TODO: - """ - - def __init__(self, system_id=None): - xmlreader.InputSource.__init__(self, system_id=system_id) - self.content_type = None - - -class StringInputSource(InputSource): - """ - TODO: - """ - - def __init__(self, value, system_id=None): - super(StringInputSource, self).__init__(system_id) - stream = BytesIO(value) - self.setByteStream(stream) - # TODO: - # encoding = value.encoding - # self.setEncoding(encoding) - - -headers = { - 'User-agent': 'rdflib-%s (http://rdflib.net/; eikeon@eikeon.com)' % __version__ - } - - -class URLInputSource(InputSource): - """ - TODO: - """ - - def __init__(self, system_id=None, format=None): - super(URLInputSource, self).__init__(system_id) - self.url = system_id - - # copy headers to change - myheaders=dict(headers) - if format=='application/rdf+xml': - myheaders['Accept']='application/rdf+xml, */*;q=0.1' - elif format=='n3': - myheaders['Accept']='text/n3, */*;q=0.1' - elif format=='nt': - myheaders['Accept']='text/plain, */*;q=0.1' - else: - myheaders['Accept']='application/rdf+xml,text/rdf+n3;q=0.9,application/xhtml+xml;q=0.5, */*;q=0.1' - - req = Request(system_id, None, myheaders) - file = urlopen(req) - self.content_type = file.info().get('content-type') - self.content_type = self.content_type.split(";", 1)[0] - self.setByteStream(file) - # TODO: self.setEncoding(encoding) - - def __repr__(self): - return self.url - - -class FileInputSource(InputSource): - """ - TODO: - """ - - def __init__(self, file): - base = urljoin("file:", pathname2url(os.getcwd())) - system_id = URIRef(file.name, base=base) - super(FileInputSource, self).__init__(system_id) - self.file = file - self.setByteStream(file) - # TODO: self.setEncoding(encoding) - - def __repr__(self): - return `self.file` - - -def create_input_source(source=None, publicID=None, - location=None, file=None, data=None, format=None): - """ - Return an appropriate InputSource instance for the given - parameters. - """ - - # TODO: test that exactly one of source, location, file, and data - # is not None. - - input_source = None - - if source is not None: - if isinstance(source, InputSource): - input_source = source - else: - if isinstance(source, basestring): - location = source - elif hasattr(source, "read") and not isinstance(source, Namespace): - f = source - input_source = InputSource() - input_source.setByteStream(f) - if hasattr(f, "name"): - input_source.setSystemId(f.name) - else: - raise Exception("Unexpected type '%s' for source '%s'" % (type(source), source)) - - if location is not None: - base = urljoin("file:", "%s/" % pathname2url(os.getcwd())) - absolute_location = URIRef(location, base=base).defrag() - if absolute_location.startswith("file:///"): - filename = url2pathname(absolute_location.replace("file:///", "/")) - file = open(filename, "rb") - else: - input_source = URLInputSource(absolute_location, format) - publicID = publicID or absolute_location - - if file is not None: - input_source = FileInputSource(file) - - if data is not None: - if isinstance(data, unicode): - data = data.encode('utf-8') - input_source = StringInputSource(data) - - if input_source is None: - raise Exception("could not create InputSource") - else: - if publicID: - input_source.setPublicId(publicID) - - # TODO: what motivated this bit? - id = input_source.getPublicId() - if id is None: - input_source.setPublicId("") - return input_source - - |