Re: [Htmlparser-user] How to extract more than one tag by only once parsering?

[Ian M. <ian...@gm...>]

As long as you keep the original reference to the NodeList created by
Parser.parse, and you haven't modified that NodeList, you should be
able to reuse it, I think.

Ian

On 8/3/06, Jesse Hou <hp...@gm...> wrote:
>
> Hi All,   When I'm using the htmlparser library, I suffered from a
> difficulty. In a html there are many tags such as title, div, input, span
> and so on. For example:
>
> <title>this is a test </title>
>
>
> //...... any other tags
>
> <div class="A">
>        <span class="B"><a href=" www.google.com ">google</a></span>
> </div>
>
>
> //...... any other tags
>
> <div class="C">
>        <div class="D"><input type="text" id="E" value="msn" /></div>
> </div>
>
> //...... any other tags
>
>
> <div class="C">
>        <div class="E"><span class="B"><input type="text" id="E" value="aol"
> /><a href=" www.live.com ">live</a></span></div>
> </div>
>
> In this example maybe the whole html include many tags. if I want to get the
> content 'this is a test',  maybe I can use a TagNameFilter, I have to parse
> the whole html. If I want to get the content 'google' or ' www.google.com'
> then I have to parse the whole html for the second time and if I want to get
> 'msn', 'aol', 'live' maybe I should parse the whole html for several times.
> In this way I can get the content what I need but maybe this way will impact
> the performance. Is there any other way to do that?  Maybe I can also use
> OrFilter to get the Nodes but how can I identify a text match which tag? If
> I want to store them into DB I have no idea how to do that by only once
> parsing the html (the best performance).  I beg your help. :-)
>
> Thanks and Best Regards
>
> Jesse
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