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Java Framework based on Spring Framework, Freemarker and Simplicity

There is a newer version: 1.189

package com.clickntap.tool.html;

import java.io.IOException;
import java.io.Reader;

public class EntityPreserveReader extends java.io.FilterReader {
  private static final char AMP = '&';
  private static final char[] AMP_ENTITY = { ';', 'p', 'm', 'a' };
  private int x0 = -1, x1 = -1;

  public EntityPreserveReader(Reader r) {
    super(r);
  }

  public int read() throws IOException {
    if (x0 == -1) {
      int c = in.read();
      if (c == AMP)
        x0 = 3;
      return c;
    } else
      return AMP_ENTITY[x0--];
  }

  public int read(char buffer[], int offset, int length) throws IOException {
    for (int i = 0; i < length; i++) {
      int c = read();
      if (c == -1)
        return i;
      else
        buffer[i + offset] = (char) c;
    }
    return length;
  }

  public boolean ready() throws IOException {
    if (x0 != -1)
      return true;
    return in.ready();
  }

  public boolean markSupported() {
    return in.markSupported();
  }

  public void mark(int limit) throws IOException {
    x1 = x0;
    in.mark(limit);
  }

  public void reset() throws IOException {
    x0 = x1;
    in.reset();
  }
}