Re: [Htmlparser-user] Parsing for links

[Derrick O. <der...@ro...>]

Hi,=0A=0AThe HasAttributeFilter should have worked... at least enough to ex=
tract all links with the Id attribute:=0A  new AndFilter (new TagNameFilter=
 ("A"), new HasAttributeFilter ("Id"))=0A=0AThat said, there isn't a "HasAt=
tributeRegexFilter" that would match an attribute value pattern,=0Aalthough=
 it has been discussed on the dev forum - or was that the LinkRegexFilter?=
=0A=0AWhat you need is a combination of the HasAttributeFilter and the Rege=
xFilter, where the exact equality test in the accept() method of HasAttribu=
teFilter is replaced by the pattern matching code from the RegexFilter. Som=
ething like this:=0A=0A    /**=0A     * Accept tags with a certain attribut=
e.=0A     * @param node The node to check.=0A     * @return <code>true</cod=
e> if the node has the attribute=0A     * (and value if that is being check=
ed too), <code>false</code> otherwise.=0A     */=0A    public boolean accep=
t (Node node)=0A    {=0A        Tag tag;=0A        Attribute attribute;=0A =
       String string;=0A        Matcher matcher;=0A        boolean ret;=0A=
=0A        ret =3D false;=0A        if (node instanceof Tag)=0A        {=0A=
            tag =3D (Tag)node;=0A            attribute =3D tag.getAttribute=
Ex (mAttribute);=0A            ret =3D null !=3D attribute;=0A            i=
f (ret && (null !=3D mValue))=0A            {=0A                string =3D =
attribute.getValue ();=0A                matcher =3D mPattern.matcher (stri=
ng);=0A                switch (mStrategy)=0A                {=0A           =
         case MATCH:=0A                        ret =3D matcher.matches ();=
=0A                        break;=0A                    case LOOKINGAT:=0A =
                       ret =3D matcher.lookingAt ();=0A                    =
    break;=0A                    case FIND:=0A                    default:=
=0A                        ret =3D matcher.find ();=0A                     =
   break;=0A                }=0A            }=0A        }=0A=0A        retu=
rn (ret);=0A    }=0A=0ADerrick=0A=0A----- Original Message ----=0AFrom: Mar=
k Goking <Mar...@as...>=0ATo: htm...@li...urcef=
orge.net=0ASent: Tuesday, August 7, 2007 5:19:29 AM=0ASubject: [Htmlparser-=
user] Parsing for links=0A=0A=0AHi all=0A=0AI used the filterbean class to =
extract only tags with links <a href>=0A=0AHowever I wish to only retrieve =
links that have an id attribute with=0Avalue that starts with string test_=
=0A=0AI don't see any method in the api that lets you do a search for the i=
d's=0Avalue that acts like a String's indexOf() method.=0A=0AWhat would be =
the filters needed for this operation? Even though ive=0Aadded attributes t=
o the LinkTag to search for id=3Dvalue attribute, it=0Astill wont work.=0A=
=0AThanks=0AChester=0A=0A--------------------------------------------------=
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