/**
* Find the end tag that lines up to the beginning tag.
*
* @param index The index to start the search on. This specifies the starting data unit.
* @param tag The beginning tag that we are seeking the end tag for.
* @return The index that the ending tag was found at. Returns -1 if not found.
*/
public final int findEndTag(final int index, final Tag tag) {
int depth = 0;
int count = index;
while (count < this.page.getDataSize()) {
final DataUnit du = this.page.getDataUnit(count);
if (du instanceof TagDataUnit) {
final Tag nextTag = ((TagDataUnit) du).getTag();
if (tag.getName().equalsIgnoreCase(nextTag.getName())) {
if (nextTag.getType() == Tag.Type.END) {
if (depth == 0) {
return count;
} else {
depth--;
}
} else if (nextTag.getType() == Tag.Type.BEGIN) {
depth++;
}
}
}
count++;
}
return -1;
}
/**
* Using the data units, which should have already been loaded by this time, load the contents of
* the web page. This includes the title, any links and forms. Div tags and spans are also
* processed.
*/
protected final void loadContents() {
for (int index = 0; index < this.page.getDataSize(); index++) {
final DataUnit du = this.page.getDataUnit(index);
if (du instanceof TagDataUnit) {
final Tag tag = ((TagDataUnit) du).getTag();
if (tag.getType() != Tag.Type.END) {
if (tag.getName().equalsIgnoreCase("a")) {
loadLink(index, tag);
} else if (tag.getName().equalsIgnoreCase("title")) {
loadTitle(index, tag);
} else if (tag.getName().equalsIgnoreCase("form")) {
loadForm(index, tag);
} else if (tag.getName().equalsIgnoreCase("input")) {
loadInput(index, tag);
}
}
if (tag.getType() == Tag.Type.BEGIN) {
if (tag.getName().equalsIgnoreCase("div")) {
loadDiv(index, tag);
} else if (tag.getName().equalsIgnoreCase("span")) {
loadSpan(index, tag);
}
}
if (tag.getType() == Tag.Type.END) {
if (tag.getName().equalsIgnoreCase("div")) {
if (this.lastHierarchyElement != null) {
this.lastHierarchyElement = this.lastHierarchyElement.getParent();
}
} else if (tag.getName().equalsIgnoreCase("span")) {
if (this.lastHierarchyElement != null) {
this.lastHierarchyElement = this.lastHierarchyElement.getParent();
}
}
}
}
}
}
