📄 listing22-3.py
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from xml.sax.handler import ContentHandlerfrom xml.sax import parseimport osclass Dispatcher: def dispatch(self, prefix, name, attrs=None): mname = prefix + name.capitalize() dname = 'default' + prefix.capitalize() method = getattr(self, mname, None) if callable(method): args = () else: method = getattr(self, dname, None) args = name, if prefix == 'start': args += attrs, if callable(method): method(*args) def startElement(self, name, attrs): self.dispatch('start', name, attrs) def endElement(self, name): self.dispatch('end', name)class WebsiteConstructor(Dispatcher, ContentHandler): passthrough = False def __init__(self, directory): self.directory = [directory] self.ensureDirectory() def ensureDirectory(self): path = os.path.join(*self.directory) if not os.path.isdir(path): os.makedirs(path) def characters(self, chars): if self.passthrough: self.out.write(chars) def defaultStart(self, name, attrs): if self.passthrough: self.out.write('<' + name) for key, val in attrs.items(): self.out.write(' %s="%s"' % (key, val)) self.out.write('>') def defaultEnd(self, name): if self.passthrough: self.out.write('</%s>' % name) def startDirectory(self, attrs): self.directory.append(attrs['name']) self.ensureDirectory() def endDirectory(self): self.directory.pop() def startPage(self, attrs): filename = os.path.join(*self.directory+[attrs['name']+'.html']) self.out = open(filename, 'w') self.writeHeader(attrs['title']) self.passthrough = True def endPage(self): self.passthrough = False self.writeFooter() self.out.close() def writeHeader(self, title): self.out.write('<html>\n <head>\n <title>') self.out.write(title) self.out.write('</title>\n </head>\n <body>\n') def writeFooter(self): self.out.write('\n </body>\n</html>\n')parse('website.xml', WebsiteConstructor('public_html'))⌨️ 快捷键说明
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