def parse_rsc_html(htmlstring):
"""Messy RSC HTML needs this special parser to fix problems before creating selector."""
converted = UnicodeDammit(htmlstring)
if not converted.unicode_markup:
raise UnicodeDecodeError('Failed to detect encoding, tried [%s]')
root = fromstring(htmlstring, parser=HTMLParser(recover=True, encoding=converted.original_encoding))
# Add p.otherpara tags around orphan text
newp = None
for child in root.get_element_by_id('wrapper'):
if newp is not None:
if child.tag in BLOCK_ELEMENTS or child.get('id', '').startswith('sect') or child.getnext() is None:
child.addprevious(newp)
newp = None
else:
newp.append(child)
if newp is None and child.tag in BLOCK_ELEMENTS and child.tail and child.tail.strip():
newp = Element('p', **{'class': 'otherpara'})
newp.text = child.tail
child.tail = ''
return root
python类Element()的实例源码
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def __init__(self, failure):
traceback = html.Element("pre")
traceback.text = failure.getTraceback()
super(StartFailedPage, self).__init__(
status=int(SERVICE_UNAVAILABLE), brief="MAAS failed to start",
detail=html.tostring(traceback, encoding=str))
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
def _add_tracking_pixel(tree, extra_metadata, configuration):
url = get_open_tracking_url(extra_metadata, configuration)
pixel = html.Element("img", {"src": url})
tree.body.append(pixel)
def fragment_fromstring(html, create_parent=False,
guess_charset=False, parser=None):
"""Parses a single HTML element; it is an error if there is more than
one element, or if anything but whitespace precedes or follows the
element.
If create_parent is true (or is a tag name) then a parent node
will be created to encapsulate the HTML in a single element. In
this case, leading or trailing text is allowed.
"""
if not isinstance(html, _strings):
raise TypeError('string required')
accept_leading_text = bool(create_parent)
elements = fragments_fromstring(
html, guess_charset=guess_charset, parser=parser,
no_leading_text=not accept_leading_text)
if create_parent:
if not isinstance(create_parent, _strings):
create_parent = 'div'
new_root = Element(create_parent)
if elements:
if isinstance(elements[0], _strings):
new_root.text = elements[0]
del elements[0]
new_root.extend(elements)
return new_root
if not elements:
raise etree.ParserError('No elements found')
if len(elements) > 1:
raise etree.ParserError('Multiple elements found')
result = elements[0]
if result.tail and result.tail.strip():
raise etree.ParserError('Element followed by text: %r' % result.tail)
result.tail = None
return result
