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Categories / Python Tutorial / XML

 

Parsing Sample with DOM

from xml.dom  import minidom, Node import re, textwrap class SampleScanner:     def __init__(self, doc):         for child in doc.childNodes:             if child.nodeType == Node.ELEMENT_NODE and child.tagName == 'book':                 self.handleBook(child)     def gettext(self, nodelist):         retlist = []         for node in nodelist:             if node.nodeType == Node.TEXT_NODE:                 retlist.append(node.wholeText)             elif node.hasChildNodes:                 retlist.append(self.gettext(node.childNodes))         return re.sub('\s+', ' ', ''.join(retlist))     def handleBook(self, node):         for child in node.childNodes:             if child.nodeType != Node.ELEMENT_NODE:                 continue             if child.tagName == 'title':                 print "Book title is:", self.gettext(child.childNodes)             if child.tagName == 'author':                 self.handleAuthor(child)             if child.tagName == 'chapter':                 self.handleChapter(child)     def handleAuthor(self, node):         for child in node.childNodes:             if child.nodeType != Node.ELEMENT_NODE:                 continue             if child.tagName == 'name':                 self.handleAuthorName(child)             elif child.tagName == 'affiliation':                 print "Author affiliation:", self.gettext([child])     def handleAuthorName(self, node):         surname = self.gettext(node.getElementsByTagName("last"))         givenname = self.gettext(node.getElementsByTagName("first"))         print "Author Name: %s, %s" % (surname, givenname)     def handleChapter(self, node):         print " *** Start of Chapter %s: %s" % (node.getAttribute('number'),              self.gettext(node.getElementsByTagName('title')))         for child in node.childNodes:             if child.nodeType != Node.ELEMENT_NODE:                 continue             if child.tagName == 'para':                 self.handlePara(child)     def handlePara(self, node):         partext = self.gettext([node])         partext = textwrap.fill(partext)         print partext         print doc = minidom.parse('sample.xml')  SampleScanner(doc)