source: trunk/gsdl3/src/java/org/greenstone/gsdl3/gs3build/util/HTMLLocalAnchor.java@ 5800

package org.greenstone.gsdl3.gs3build.util;

public class HTMLLocalAnchor
{   
    public static int anchorRef(HTMLBlockList anchors, String name)
    { int loop;
        String  idvalue;

        for (loop = 0; loop < anchors.size(); loop ++)
        {   idvalue = anchors.tagBlock(loop).headTag().idValue("name");
            if (idvalue != null && idvalue.equalsIgnoreCase(name))  //TODO: check if this should be case senstitive
            { return loop;
            }
        }
        return -1;
    }

    public static int header(HTMLDoc doc, String local)
    {   HTMLBlockList anchors;
        int                     heading;
        HTMLBlock           headingblock;
        int                     anchor;
        HTMLBlock           anchorblock;

        anchors = HTMLBlockList.anchorlist(doc);
        anchor  = anchorRef(anchors, local);
        if (anchor < 0)
        {   return -1;
        }

        anchorblock = anchors.tagBlock(anchor);
        for (heading = 0; heading < doc.headerBlocks().size(); heading ++)
        {   headingblock    = doc.headerBlocks().tagBlock(heading);

            if (headingblock.startPos() > anchorblock.endPos())
            {   break;
            }
        }
        return heading - 1;
    }
    
}