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发表时间：2009-12-30
最后修改：2009-12-30
上一次发现了SGMLParser的bug,（见Python sgmlparser bug）于是就想到了利用HTMLParser，于是对其利用同样的HTML代码做了测试：
测试代码如下：
class postparser(HTMLParser):
def __init__(self):
HTMLParser.__init__(self)
self.pieces=[]
def handle_starttag(self, tag, attrs):
print "start tag name: " + tag
for k,v in attrs:
print "\t"+k+" : "+v
def handle_endtag(self,tag):
print "end tag name:"+tag
def handle_data(self,data):
self.pieces.append(data)
def gethtmltext(self):
return "".join(self.pieces)
def reset(self):
HTMLParser.reset(self)
def testmyparser(htmldata):
parser=postparser()
parser.feed(htmldata)
print parser.gethtmltext()
parser.reset()
if __name__=="__main__":
#htmldata=urllib.urlopen("http://www.sogou.com").read().decode("gbk")
htmldata="""<html><head>
<title>Google Page</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" href="#" type="text/css">
</head><body>
<table id="tab">
<tr id="tr1"><td id="tr1td1">tr1 td1</td><td>tr1 td2</td><td>tr1 td3</td></tr>
<tr id="tr2"><td id="tr2td1">tr2 td1</td><td>tr2 td2</td><td>tr2 td3</td></tr>
</table>
<br/>
<p onmousemove="javascript:alert('>p<');"> this is a paragraph.</p>
<img src="http://www.baidu.com/img/baidu_logo.gif" id="baidulogo" /><br/>
<a href="http://baidu.com">baidu</a><br/>
<b>bold font</b><br/>
<script language="javascript">alert("hello, world ");</script>
<style>#tab{background-color:#fcdad5;}</style>
</body></html>
"""
testmyparser(htmldata)
结果输出如下：
start tag name: html
start tag name: head
start tag name: title
end tag name:title
start tag name: meta
http-equiv : Content-Type
content : text/html; charset=utf-8
start tag name: link
rel : stylesheet
href : #
type : text/css
end tag name:head
start tag name: body
start tag name: table
id : tab
start tag name: tr
id : tr1
start tag name: td
id : tr1td1
end tag name:td
start tag name: td
end tag name:td
start tag name: td
end tag name:td
end tag name:tr
start tag name: tr
id : tr2
start tag name: td
id : tr2td1
end tag name:td
start tag name: td
end tag name:td
start tag name: td
end tag name:td
end tag name:tr
end tag name:table
start tag name: br
end tag name:br
start tag name: p
onmousemove : javascript:alert('>p<');
end tag name:p
start tag name: img
src : http://www.baidu.com/img/baidu_logo.gif
id : baidulogo
end tag name:img
start tag name: br
end tag name:br
start tag name: a
href : http://baidu.com
end tag name:a
start tag name: br
end tag name:br
start tag name: b
end tag name:b
start tag name: br
end tag name:br
start tag name: script
language : javascript
end tag name:script
start tag name: style
end tag name:style
end tag name:body
end tag name:html
Google Page
tr1 td1tr1 td2tr1 td3
tr2 td1tr2 td2tr2 td3
this is a paragraph.
baidu
bold font
alert("hello, world ");
#tab{background-color:#fcdad5;}
从测试结果来看，比之于SGMLParser，解析的结果还是不错的，克服了不能解析单个标签的bug，而且onmousemove中的><也得到了正确的解析。
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