Re: [Vtd-xml-users] Xpath Queries

[Jimmy Z. <cra...@co...>]

Ok, after looking at your code closely I think I know what causes
the problems that you have...=20

GetElementFragment() is a function that will get you the offset
and length of a selected element...

when you use xpath to select a text node or attr val, you ought to
select the offset and length of the text token and attrbute value token,
*not* the offset and length of the containg element...

so I recommend that instead of using

while(evalXPath(ap)!=3D -1)=20

do=20

int i;

while ((i=3DevalXPath(ap))!=3D -1){

  // here to check the token type of i

  if (getTokenType(vn, i) =3D=3D ELEMENT){

        // get token type

  } else {

        int offset =3D getTokenOffset(vn, i);

       int len =3D getTokenLength(vn, i);

  }

}

  ----- Original Message -----=20
  From: Ludovic MUSSIER=20
  To: vtd...@li...=20
  Sent: Monday, February 05, 2007 8:24 AM
  Subject: [Vtd-xml-users] Xpath Queries


  Hi,=20

  Let's say i've got this XML file:

  <?xml version=3D'1.0' ?>

  <a>

  <b x=3D"y">100</b>

  <c>

  <d>200</d>

  </c>

  <c>

  <d>300</d>

  <d>400</d>

  </c>

  </a>

  Using this code, to retreve nodes works fine:

  if (selectXPath(ap,L"c"))

  {

  bind(ap,vn);

  while(evalXPath(ap)!=3D -1)=20

  {

  l =3D getElementFragment(vn);

  offset =3D (int) l;

  len =3D (int) (l>>32);

  fwrite((char *)(xml+offset),sizeof(UByte),len,fo);

  fwrite((char *) sm,sizeof(UByte),strlen(sm),fo);

  }=20

  }

  I get my two nodes, but if my xpath query becomes b/text() for exemple =
I dont' get what I should.

  Other example if my xpath query is b\@x i don't get what I should

  What is the "normal" way to get correct return for all xpath query ?

  Should I test my query to use one code or another code ?

  I'll be glad if someone could send/tell me how to print, let's say =
fprintf(stdout,"%ls",answerToMyQuery); the correct answer to all my =
xpath queries.

  Tks

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      =20



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