/**
* Reads and parses markup from a file.
*
* @return The markup
* @throws IOException
* @throws ResourceStreamNotFoundException
*/
public final Markup parse() throws IOException, ResourceStreamNotFoundException {
// The root of all markup filters is the xml parser
markupFilterChain = new RootMarkupFilter(xmlParser);
// Convert the list of markup filters into a chain
for (IMarkupFilter filter : getMarkupFilters()) {
filter.setNextFilter(markupFilterChain);
markupFilterChain = filter;
}
// Initialize the xml parser
MarkupResourceStream markupResourceStream = markup.getMarkupResourceStream();
xmlParser.parse(
markupResourceStream.getResource().getInputStream(),
markupSettings.getDefaultMarkupEncoding());
// parse the xml markup and tokenize it into wicket relevant markup
// elements
parseMarkup();
// markupResourceStream.setEncoding(xmlParser.getEncoding());
markupResourceStream.setDoctype(xmlParser.getDoctype());
if (xmlParser.getEncoding() == null) {
String a = "The markup file does not have a XML declaration prolog with 'encoding' attribute";
String b = ". E.g. <?xml version=\"1.0\" encoding=\"UTF-8\" ?>";
if (markupSettings.getThrowExceptionOnMissingXmlDeclaration()) {
throw new MarkupException(markupResourceStream.getResource(), a + b);
} else {
log.debug(a + ":" + markupResourceStream.getResource() + ". It is more save to use it" + b);
}
}
return markup;
}
/** Scans the given markup and extracts balancing tags. */
private void parseMarkup() {
try {
// always remember the latest index (size)
int size = markup.size();
// Loop through tags
MarkupElement elem;
while (null != (elem = getNextTag())) {
if (elem instanceof HtmlSpecialTag) {
elem = new ComponentTag(((HtmlSpecialTag) elem).getXmlTag());
}
if (elem instanceof ComponentTag) {
ComponentTag tag = (ComponentTag) elem;
boolean add = (tag.getId() != null);
if (!add && tag.isClose()) {
add = ((tag.getOpenTag() != null) && (tag.getOpenTag().getId() != null));
}
// Add tag to list?
if (add || /*tag.isModified() ||*/ (markup.size() != size)) {
// Add text from last position to the current tag position
CharSequence text = xmlParser.getInputFromPositionMarker(tag.getPos());
if (text.length() > 0) {
text = handleRawText(text.toString());
// Make sure you add it at the correct location.
// IMarkupFilters might have added elements as well.
markup.addMarkupElement(size, new RawMarkup(text));
}
xmlParser.setPositionMarker();
if (add) {
// Add to the markup unless the tag has been flagged as
// to be removed from the markup. (e.g. <wicket:remove>
if (tag.isIgnore() == false) {
markup.addMarkupElement(tag);
}
}
/*else if (tag.isModified())
{
markup.addMarkupElement(new RawMarkup(tag.toCharSequence()));
}*/
else {
xmlParser.setPositionMarker(tag.getPos());
}
}
// always remember the latest index (size)
size = markup.size();
}
}
} catch (final ParseException ex) {
// Add remaining input string
final CharSequence text = xmlParser.getInputFromPositionMarker(-1);
if (text.length() > 0) {
markup.addMarkupElement(new RawMarkup(text));
}
// markup.getMarkupResourceStream().setEncoding(xmlParser.getEncoding());
markup.getMarkupResourceStream().setDoctype(xmlParser.getDoctype());
final MarkupStream markupStream = new MarkupStream(markup);
markupStream.setCurrentIndex(markup.size() - 1);
throw new MarkupException(markupStream, ex.getMessage(), ex);
}
// Add tail?
CharSequence text = xmlParser.getInputFromPositionMarker(-1);
if (text.length() > 0) {
text = handleRawText(text.toString());
// Make sure you add it at the correct location.
// IMarkupFilters might have added elements as well.
markup.addMarkupElement(new RawMarkup(text));
}
postProcess(markup);
// Make all tags immutable and the list of elements unmodifiable
markup.makeImmutable();
}