Class XhtmlStreamReader

src/org/albite/io/html/XhtmlStreamReader.java:17–699

@author albus

 * @author albus
 */
public class XhtmlStreamReader extends Reader implements HTMLSubstitues {

    private static final int SEARCH_BUFFER = 2048;
    private static final Hashtable ENTITIES = new Hashtable(200);

    private final AlbiteStreamReader in;
    private final char[] buffer = new char[10];
    private Hashtable customEntities;

    public XhtmlStreamReader(
            final AlbiteStreamReader in,
            final boolean readXmlDecl,
            final boolean readDoctypeDecl)
            throws IOException {

        this.in = in;

        if (readXmlDecl) {
            /*
             * Read xml decl
             */
            xmldecl();
        }

        if (readDoctypeDecl) {
            /*
             * Read doc decl
             */
            doctypedecl();
        }
    }

    private void xmldecl() throws IOException {
        /*
         * Try to read the xmldecl
         */

        /*
         * Mark four times as much, for the underlying AlbiteStreamReader,
         * might read multibyte (4-byte) UTF-8 chars
         */
        in.mark(SEARCH_BUFFER * 4);
        try {
            char[] buf = new char[SEARCH_BUFFER];
            int read = in.read(buf);

            if (read > 0) {
                String xmldecl = new String(buf, 0, read);
                if (!xmldecl.startsWith("<?xml")) {
                    in.reset();
                    return;
                }

                int xend = xmldecl.indexOf("?>");

                if (xend == -1) {
                    in.reset();
                    return;