diff options
Diffstat (limited to 'bs4/element.py')
| -rw-r--r-- | bs4/element.py | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/bs4/element.py b/bs4/element.py index 7d84083..ba63a88 100644 --- a/bs4/element.py +++ b/bs4/element.py @@ -638,8 +638,8 @@ class PageElement(object): tag_name, id = token.split('#', 1) if tag_name == "": tag_name = True - production_rule = lambda tag: tag.find(tag_name, id=id) - checker = None + production_rule = lambda tag: [tag.find(tag_name, id=id)] + checker = lambda x: True elif '.' in token: # Class selector @@ -655,7 +655,7 @@ class PageElement(object): elif ':' in token: # Pseudoselector tag_name, pseudo = token.split(':', 1) - if not tag_name: + if tag_name == '': raise ValueError( "A pseudoselector must be prefixed with a tag name.") pseudo_attributes = re.match('([a-zA-Z\d-]+)\(([a-zA-Z\d]+)\)', pseudo) @@ -671,22 +671,21 @@ class PageElement(object): if pseudo_value < 1: raise ValueError( 'nth-of-type pseudoselector value must be at least 1.') - count = 0 - def checker(tag): - if tag.name == tag_name: - count += 1 - if pseudo_value == count: - return True - return False - production_rule = lambda tag: tag.find_all(tag_name, limit=pseudo_value) - checker = checker + def nth_child_of_type(tag): + children = tag.find_all( + tag_name, limit=pseudo_value) + if len(children) < pseudo_value: + return [] + return [children[pseudo_value-1]] + production_rule = nth_child_of_type + checker = lambda x: True else: raise NotImplementedError( 'The following pseudoselectors are implemented: nth-of-type.') elif token == '*': # Star selector - production_rule = lambda tag: tag.find_all() + production_rule = lambda tag: tag.find_all(True) checker = lambda x: True elif token == '>': |