Inside XML

Creating a Graphical Browser

In the previous chapter, I adapted the DOM parser browser we wrote to display circles. It will be instructive to do the same here for the SAX parser browser because it will show how to retrieve specific attribute values. Here's what the document this browser, circlesSAX.java, might read—this document is called circles.xml, and as in the previous chapter, I'm specifying the (x, y) origin of each circle and the radius of the circle as attributes of the <CIRCLE> element:

 <?xml version = "1.0" ?> <!DOCTYPE DOCUMENT [ <!ELEMENT DOCUMENT (CIRCLE|ELLIPSE)*> <!ELEMENT CIRCLE EMPTY> <!ELEMENT ELLIPSE EMPTY> <!ATTLIST CIRCLE X CDATA #IMPLIED Y CDATA #IMPLIED RADIUS CDATA #IMPLIED> <!ATTLIST ELLIPSE X CDATA #IMPLIED Y CDATA ...