class TableParser(HTMLParser):
VALID_TAGS = ['table', 'thead', 'tbody', 'tfoot', 'tr', 'th', 'td']
def __init__(self, header_row_fn=None, body_row_fn=None, footer_row_fn=None):
HTMLParser.__init__(self)
self.state_machine = StateMachine()
self.header_row_fn = header_row_fn
self.body_row_fn = body_row_fn
self.footer_row_fn = footer_row_fn
self.cells = []
def handle_starttag(self, tag, attrs):
if tag not in TableParser.VALID_TAGS:
return
self.state_machine.transition(tag, StateMachine.START_TAG)
def handle_endtag(self, tag):
if tag not in TableParser.VALID_TAGS:
return
self.state_machine.transition(tag, StateMachine.END_TAG)
if tag == 'tr':
if self.state_machine.in_header() and self.header_row_fn:
self.header_row_fn(self.cells)
elif self.state_machine.in_footer() and self.footer_row_fn:
self.footer_row_fn(self.cells)
elif self.body_row_fn:
self.body_row_fn(self.cells)
self.cells = []
def handle_data(self, data):
if self.state_machine.in_cell():
self.cells.append(data)
