Re: [Htmlparser-user] how to add new nodes/elements to html source

[Srinivas V. <vip...@ho...>]

Hi Derrick,       Thanks very much for the response. I tried your suggestio=
n and it seems to work. Can you please be precise about your comment "Like,=
 don't add a node after the current node in the parent's children.". Did yo=
u mean something like this:                           TagNode tc =3D new Ta=
bleColumn();              tc.setAttribute("id","testvalue",'"');           =
   tc.setAttribute("class","valid",'"');              nl.add(new TextNode("=
Test3"));              tc.setChildren(nl);              tc.setEndTag(new Ta=
bleColumn());             =0A=
               nl.add(tc);  ---> this is the culprit              System.ou=
t.println(nl.toHtml());  --> This statement throws a stack overflow error.I=
f that is the case then, where should my new nodes be stored. Should I crea=
te another NodeList object which holds the original html and also my new ch=
anges?Thanks,=0A=
Srinivas.Date: Tue, 26 Jun 2007 19:27:15 -0700From: der...@ro...=
mTo: htm...@li...Subject: Re: [Htmlparser-user] ho=
w to add new nodes/elements to html source=0A=
=0A=
Srinivas,Try:TableColumn end =3D new TableColumn ();end.setTagName ("/TD");=
You can modify the current html, but carefully so the visiting logic doesn'=
t get into an infinite loop.Like, don't add a node after the current node i=
n the parent's children.You will need to gather it all first, like you are =
doing:Parser parser =3D new Parser ("http://www.yahoo.com");NodeList conten=
t =3D parser.parse (null);then apply your visitor:content.visitAllNodesWith=
 (my_visitor);then make it into html again:String s =3D content.toHtml ();D=
errick----- Original Message ----From: Srinivas Vippagunta <vippagunta@hotm=
ail.com>To: htm...@li...Sent: Tuesday, June 26, 20=
07 8:25:47 PMSubject: [Htmlparser-user] how to add new nodes/elements to ht=
ml source=0A=
=0A=
=0A=
Hello All,     I am pretty new to Java and was wondering if anyone can help=
 me out with my question. I am trying to parse some html source and based o=
n some matching content I should add new nodes elements. For eg: I should b=
e able to add a similar tr and td elements to the existing source but with =
different td values.     <tr id=3Dtest>     <td id=3Dtest1><b>KEY</b></td> =
    <td id=3Dtest1><b>VALUE</b></td>     </tr>I am doing something like thi=
s:  public class MyVisitor extends NodeVisitor {     NodeList nl =3D new No=
deList();               public MyVisitor ()     {    =0A=
 }          public void visitTag (Tag tag)     {         if ((tag instanceo=
f TableRow))         {                           TagNode tc =3D new TableCo=
lumn();              tc.setAttribute("id","testvalue",'"');              tc=
.setAttribute("class","valid",'"');              nl.add(new TextNode("Test3=
"));              tc.setChildren(nl);              tc.setEndTag(new TableCo=
lumn());             =0A=
                             System.out.println(tc.toHtml());              =
     }     }     public static void main (String[] args) throws ParserExcep=
tion     {         Parser parser =3D new Parser ("http://www.yahoo.com");  =
       MyVisitor visitor =3D new MyVisitor ();         NodeList list =3D pa=
rser.parse (null);         list.visitAllNodesWith(visitor);     } }This pri=
nts: <TD id=3D"testvalue"=0A=
 class=3D"valid">Test3<TD>    --> not a closing TD??? Also, how can I modif=
y the current html source, the nodevisitor travels ? Can someone help!!Chee=
rs,=0A=
Srinivas.Make every IM count. Download Windows Live Messenger and join the =
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