¿Cuál es la mejor manera de analizar un feed XML?

Which is the best way to parse an XML feed?

The steps for parsing an XML feed are as follows: As described in Analyze the feed, identify the tags you want to include in your app. This example extracts data for the entry tag and its nested tags title, link, and summary. A “read” method for each tag you’re interested in. For example, readEntry (), readTitle (), and so on.

This node is called a text node. To retrieve the text value of an element, you must retrieve the value of the elements’ text node. The getElementsByTagName () method returns a node list of all elements, with the specified tag name, in the same order as they appear in the source document. Suppose ” books.xml ” has been loaded into xmlDoc.

Element names cannot start with the letters xml (or XML, or Xml, etc) Element names can contain letters, digits, hyphens, underscores, and periods Element names cannot contain spaces

In the example above, “Properly nested” simply means that since the element is opened inside the element, it must be closed inside the element. XML elements can have attributes in name/value pairs just like in HTML. Some characters have a special meaning in XML.

As known from ElementTree, the iterparse () utility function returns an iterator that generates parser events for an XML file (or file-like object), while building the tree. The values are tuples (event-type, object). The event types supported by ElementTree and lxml.etree are the strings ‘start’, ‘end’, ‘start-ns’ and ‘end-ns’.

As known from ElementTree, the iterparse () utility function returns an iterator that generates parser events for an XML file (or file-like object), while building the tree. The values are tuples (event-type, object).

The parser reads tags from the input stream. When it encounters a tag named entry , title , link or summary, it calls the appropriate method for that tag. Otherwise, it skips the tag. Methods to extract data for each different type of tag and to advance the parser to the next tag.