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See:
Description
Class Summary | |
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AndFilter | Accepts nodes matching all of its predicate filters (AND operation). |
CssSelectorNodeFilter | A NodeFilter that accepts nodes based on whether they match a CSS2 selector. |
HasAttributeFilter | This class accepts all tags that have a certain attribute, and optionally, with a certain value. |
HasChildFilter | This class accepts all tags that have a child acceptable to the filter. |
HasParentFilter | This class accepts all tags that have a parent acceptable to another filter. |
HasSiblingFilter | This class accepts all tags that have a sibling acceptable to another filter. |
IsEqualFilter | This class accepts only one specific node. |
LinkRegexFilter | This class accepts tags of class LinkTag that contain a link matching a given regex pattern. |
LinkStringFilter | This class accepts tags of class LinkTag that contain a link matching a given pattern string. |
NodeClassFilter | This class accepts all tags of a given class. |
NotFilter | Accepts all nodes not acceptable to it's predicate filter. |
OrFilter | Accepts nodes matching any of its predicates filters (OR operation). |
RegexFilter | This filter accepts all string nodes matching a regular expression. |
StringFilter | This class accepts all string nodes containing the given string. |
TagNameFilter | This class accepts all tags matching the tag name. |
The filters package contains example filters to select only desired nodes. For example, to display tags having the "id" attribute, you could use:
Parser parser = new Parser ("http://yadda"); parser.parse (new HasAttributeFilter ("id"));These filters can be combined to yield powerful extraction capabilities. For example, to get a list of links where the contents is an image, you could use:
NodeList list = new NodeList (); NodeFilter filter = new AndFilter ( new TagNameFilter ("A"), new HasChildFilter ( new TagNameFilter ("IMG"))); for (NodeIterator e = parser.elements (); e.hasMoreNodes (); ) e.nextNode ().collectInto (list, filter);
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© 2006 Derrick Oswald Sep 17, 2006
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HTML Parser is an open source library released under Common Public License. |