stax – Tarik Billa

What is ‘Push Approach’ and ‘Pull Approach’ to parsing?

July 24, 2023 by Tarik

Basically, a push is when the parser says to some handler, “I have a foo, do something with it.” A pull is when the handler says to the parser, “give me the next foo.” Push: if (myChar == ‘(‘) handler.handleOpenParen(); // push the open paren to the handler Pull: Token token = parser.next(); // pull … Read more

When should I choose SAX over StAX?

January 28, 2023 by Tarik

OverviewXML documents are hierarchical documents, where the same element names and namespaces might occur in several places, having different meaning, and in infinitive depth (recursive). As normal, the solution to big problems, is to divide them into small problems. In the context of XML parsing, this means parsing specific parts of XML in methods specific … Read more

“Content is not allowed in prolog” when parsing perfectly valid XML on GAE

November 14, 2022 by Tarik