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In the above xml sample I would like to select all the books that belong to class foo and not in class bar by using xpath.
<?xml version="1.0" encoding="ISO-8859-1"?> <bookstore> <book class="foo"> <title lang="en">Harry Potter</title> <author>J K. Rowling</author> <year>2005</year> <price>29.99</price> </book> <book class="foo bar"> <title lang="en">Harry Potter</title> <author>J K. Rowling</author> <year>2005</year> <price>29.99</price> </book> <book class="foo bar"> <title lang="en">Harry Potter</title> <author>J K. Rowling</author> <year>2005</year> <price>29.99</price> </book> </bookstore> 
916
Use the getElementsByClassName method to get elements by multiple class names, e.g. document. getElementsByClassName('box green') . The method returns an array-like object containing all the elements that have all of the given class names.
HTML elements can be assigned multiple classes by listing the classes in the class attribute, with a blank space to separate them.
Xpath class is defined as a selector that is usually shared by multiple elements in the document means it extracts all the class names. Nodes or lists of nodes are selected using XPath expressions based on property class names. The class name is separated by a Spaces. This token has white space.
class selector can also be used to select multiple classes.
By padding the @class value with leading and trailing spaces, you can test for the presence of " foo " and " bar " and not worry about whether it was first, middle, or last, and any false positive hits on "food" or "barren" @class values:
/bookstore/book[contains(concat(' ',@class,' '),' foo ') and not(contains(concat(' ',@class,' '),' bar '))] Although I like Mads solution: Here is another approach for XPath 2.0:
/bookstore/book[ tokenize(@class," ")="foo" and not(tokenize(@class," ")="bar") ] Please note that the following expressions are both true:
("foo","bar")="foo" -> true ("foo","bar")="bar" -> true If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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