[Htmlparser-developer] Re: [Htmlparser-user] HTML parser 1.1
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[Htmlparser-developer] Re: [Htmlparser-user] HTML parser 1.1
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From: Raghavender S. <kin...@ho...> - 2002-04-11 21:12:58
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hi Somik,
the code snippet you mailed me seems to have some problems.
let me explain you. the method
isXMLTagFound(node,"OPTION")
would always return false. the reason: in the definition of the above method
we have
if (node instanceof HTMLTag) {
System.out.println("node instanceof HTMLTag in tagscanner ");
HTMLTag tag = (HTMLTag)node;
if (tag.getText().equals(tagName)) {
xmlTagFound=true;
}
}
tag.getText() would always give me
OPTION value="#">Select a destination
which is not equal to the tagName, in this case the tagName=OPTION.
Raghav
>From: "Somik Raha" <so...@ya...>
>To: "Raghavender Srimantula" <kin...@ho...>,
><htm...@li...>
>Subject: Re: [Htmlparser-user] HTML parser 1.1
>Date: Thu, 11 Apr 2002 11:14:51 +0900
>
>Hi Raghav
> I replied to your earlier query. Did you recieve the mail (I forwarded
>it again) ?
> Regarding your current query, there are two ways to handle option
>tags.
>
>[1] Like in the previous question, you will have to recognize a HTMLTag
>(begin tag), followed by HTMLStringNode, and finally HTMLEndTag.
>[2] To make life easier, since this tag is basic xml, you can use a special
>XML parsing method provided in the superclass HTMLTagScanner.
>
>The methods are :
>(i) isXMLTagFound
>(ii) extractXMLData
>
>both of them are static mehods.
>You would use it like this :
>
>HTMLNode node = reader.readElement();
>if (isXMLTag(node,"OPTION")) {
> String option = extractXMLData(node,"OPTION",reader);
> // The string now contains the data within the option xml tag
> // So given an input : <OPTION value="#">Select a destination</OPTION>
> // option will hold "Select a destination"
>}
>
>But getting the value from the option tag itself would need to be handled
>seperately.
>
>Regards,
>Somik
>----- Original Message -----
>From: "Raghavender Srimantula" <kin...@ho...>
>To: <so...@ya...>; <htm...@li...>
>Sent: Thursday, April 11, 2002 9:22 AM
>Subject: Re: [Htmlparser-user] HTML parser 1.1
>
>
> > hi Somik,
> > any ideas about my previous mail. let us say if we have
> > <OPTION value="#">Select a destination</OPTION>
> > when I do a
> > node = reader.readElement();
> > where "reader" is HTMLReader
> > the node I get is of type neither HTMLStringNode, HTMLEndTag,
> > HTMLRemarkNode.
> > how do I classify this if I want to do some thing with them.
> > Raghav
> >
> > >From: "Somik Raha" <so...@ya...>
> > >To: "Raghavender Srimantula" <kin...@ho...>
> > >CC: <htm...@li...>
> > >Subject: Re: [Htmlparser-user] HTML parser 1.1
> > >Date: Mon, 8 Apr 2002 13:04:07 +0900
> > >
> > >Hi Raghav
> > > > when would be this HTMLparser 1.1 out?
> > >As soon as I can wrap it up. Technically, the code is ready and already
> > >checked into CVS. I need to do the process of creating a release - make
> > >some
> > >documentation, check everything is ok, ..
> > >If I had some help I could wrap it up sooner.
> > >
> > > > I am not sure, but to me the way htmlparser parses is it gives me
>the
> > >tag
> > > > parameter of the first line in the above snippet of html code, when
>I
>do
> > > > Hashtable table = tag.parseParameters();
> > > > it is looking for parameters inside <FORM ..... >, but not <FORM
> > > > .....</FORM>
> > >
> > >Yes - parseParameters() will give you the stuff inside the FORM tag.
>That
> > >is
> > >what I call "microscopic" parsing. But to get the remaining tags - till
>you
> > >encounter </FORM> you need to do "macroscopic" parsing. This is not
>hard-
> > >check HTMLAppletScanner as an example.
> > >
> > >In a nutshell - concept is very simple. The scan method provides you
>with
>a
> > >reader. So you are to use that reader to read ahead and get the next
>tags.
> > >This is simple bcos the reader will automatically identify the correct
> > >tags,
> > >and the mechanism is very similar to using the parser to get the tags
>you
> > >want. The HTMLLinkScanner among others, also works on the same
>principle.
> > >
> > >Bytway - I think we should take this discussion to the Developer list.
> > >
> > >Regards,
> > >Somik
> > >----- Original Message -----
> > >From: "Raghavender Srimantula" <kin...@ho...>
> > >To: <htm...@li...>
> > >Sent: Monday, April 08, 2002 6:39 AM
> > >Subject: [Htmlparser-user] HTML parser 1.1
> > >
> > >
> > > > Hi Somik,
> > > > when would be this HTMLparser 1.1 out?
> > > > one more question. to parse the FORM tags, I have a small question.
> > > > let us say this is a form tag
> > > >
> > > > <FORM NAME="LoginForm" METHOD=POST ACTION="urltoInvoke">
> > > > <P>User name:
> > > > <INPUT TYPE="text" NAME="userName" SIZE="10">
> > > > <P>Password:
> > > > <INPUT TYPE="password" NAME="password" SIZE="12">
> > > > <P><INPUT TYPE="submit" VALUE="Log in">
> > > > <INPUT TYPE="button" VALUE="Cancel" onClick="window.close()">
> > > > </FORM>
> > > >
> > > > I am not sure, but to me the way htmlparser parses is it gives me
>the
> > >tag
> > > > parameter of the first line in the above snippet of html code, when
>I
>do
> > > > Hashtable table = tag.parseParameters();
> > > > it is looking for parameters inside <FORM ..... >, but not <FORM
> > > > .....</FORM>
> > > >
> > > > could you suggest me how to go ahead with this.
> > > > Raghav
> > > >
> > > >
> > > > to extract the INPUT tag parameters
> > > >
> > > >
> > > >
> > > >
> > > >
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