if sys.version_info >= (2, 7):
def find_xpath_attr(node, xpath, key, val=None):
""" Find the xpath xpath[@key=val] """
- assert re.match(r'^[a-zA-Z-]+$', key)
+ assert re.match(r'^[a-zA-Z_-]+$', key)
if val:
assert re.match(r'^[a-zA-Z0-9@\s:._-]*$', val)
expr = xpath + ('[@%s]' % key if val is None else "[@%s='%s']" % (key, val))
return '/'.join(replaced)
-def xpath_text(node, xpath, name=None, fatal=False, default=NO_DEFAULT):
+def xpath_element(node, xpath, name=None, fatal=False, default=NO_DEFAULT):
if sys.version_info < (2, 7): # Crazy 2.6
xpath = xpath.encode('ascii')
n = node.find(xpath)
- if n is None or n.text is None:
+ if n is None:
if default is not NO_DEFAULT:
return default
elif fatal:
raise ExtractorError('Could not find XML element %s' % name)
else:
return None
+ return n
+
+
+def xpath_text(node, xpath, name=None, fatal=False, default=NO_DEFAULT):
+ n = xpath_element(node, xpath, name, fatal=fatal, default=default)
+ if n is None or n == default:
+ return n
+ if n.text is None:
+ if default is not NO_DEFAULT:
+ return default
+ elif fatal:
+ name = xpath if name is None else name
+ raise ExtractorError('Could not find XML element\'s text %s' % name)
+ else:
+ return None
return n.text
+def xpath_attr(node, xpath, key, name=None, fatal=False, default=NO_DEFAULT):
+ n = find_xpath_attr(node, xpath, key)
+ if n is None:
+ if default is not NO_DEFAULT:
+ return default
+ elif fatal:
+ name = '%s[@%s]' % (xpath, key) if name is None else name
+ raise ExtractorError('Could not find XML attribute %s' % name)
+ else:
+ return None
+ return n.attrib[key]
+
+
def get_element_by_id(id, html):
"""Return the content of the tag with the specified ID in the passed HTML document"""
return get_element_by_attribute("id", id, html)
return ''.join(out)
+def cli_option(params, command_option, param):
+ param = params.get(param)
+ return [command_option, param] if param is not None else []
+
+
+def cli_bool_option(params, command_option, param, true_value='true', false_value='false', separator=None):
+ param = params.get(param)
+ assert isinstance(param, bool)
+ if separator:
+ return [command_option + separator + (true_value if param else false_value)]
+ return [command_option, true_value if param else false_value]
+
+
+def cli_valueless_option(params, command_option, param, expected_value=True):
+ param = params.get(param)
+ return [command_option] if param == expected_value else []
+
+
+def cli_configuration_args(params, param, default=[]):
+ ex_args = params.get(param)
+ if ex_args is None:
+ return default
+ assert isinstance(ex_args, list)
+ return ex_args
+
+
class ISO639Utils(object):
# See http://www.loc.gov/standards/iso639-2/ISO-639-2_utf-8.txt
_lang_map = {