Examples of java.io.PushbackInputStream.skip()

java.io.PushbackInputStream.skip()
Skips over and discards n bytes of data from this input stream. The skip method may, for a variety of reasons, end up skipping over some smaller number of bytes, possibly zero. If n is negative, no bytes are skipped.
The skip method of PushbackInputStream first skips over the bytes in the pushback buffer, if any. It then calls the skip method of the underlying input stream if more bytes need to be skipped. The actual number of bytes skipped is returned. @param n {@inheritDoc} @return {@inheritDoc} @exception IOException if the stream does not support seek,or the stream has been closed by invoking its {@link #close()} method,or an I/O error occurs. @see java.io.FilterInputStream#in @see java.io.InputStream#skip(long n) @since 1.2

                                    if (buf[0] == (byte)0xff &&
                                            buf[1] == (byte)0xfe) {
                                        if (read >= 4 && buf[2] == 0 &&
                                                buf[3] == 0) {
                                            enc = "UTF32-LE";
                                            pbis.skip(4);
                                        } else {
                                            enc = "UTF-16LE";
                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&

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                                                buf[3] == 0) {
                                            enc = "UTF32-LE";
                                            pbis.skip(4);
                                        } else {
                                            enc = "UTF-16LE";
                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&
                                            buf[1] == (byte)0xff) {
                                        enc = "UTF-16BE";
                                        pbis.skip(2);

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                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&
                                            buf[1] == (byte)0xff) {
                                        enc = "UTF-16BE";
                                        pbis.skip(2);
                                    } else if (read >= 3
                                            && buf[0] == (byte)0xef 
                                            && buf[1] == (byte)0xbb
                                            && buf[2] == (byte)0xbf) {
                                        enc = "UTF-8";

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                                    } else if (read >= 3
                                            && buf[0] == (byte)0xef 
                                            && buf[1] == (byte)0xbb
                                            && buf[2] == (byte)0xbf) {
                                        enc = "UTF-8";
                                        pbis.skip(3);
                                    } else if (read >= 4 && buf[0] == 0 &&
                                            buf[1] == 0 &&
                                            buf[2] == (byte)0xfe &&
                                            buf[3] == (byte)0xff) {
                                        enc = "UTF-32BE";

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                                    } else if (read >= 4 && buf[0] == 0 &&
                                            buf[1] == 0 &&
                                            buf[2] == (byte)0xfe &&
                                            buf[3] == (byte)0xff) {
                                        enc = "UTF-32BE";
                                        pbis.skip(4);
                                    }
                                }
                                if (enc == null) {
                                    enc = "UTF-8";
                                }

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                                    if (buf[0] == (byte)0xff &&
                                            buf[1] == (byte)0xfe) {
                                        if (read >= 4 && buf[2] == 0 &&
                                                buf[3] == 0) {
                                            enc = "UTF32-LE";
                                            pbis.skip(4);
                                        } else {
                                            enc = "UTF-16LE";
                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&

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                                                buf[3] == 0) {
                                            enc = "UTF32-LE";
                                            pbis.skip(4);
                                        } else {
                                            enc = "UTF-16LE";
                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&
                                            buf[1] == (byte)0xff) {
                                        enc = "UTF-16BE";
                                        pbis.skip(2);

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                                            pbis.skip(2);
                                        }
                                    } else if (buf[0] == (byte)0xfe &&
                                            buf[1] == (byte)0xff) {
                                        enc = "UTF-16BE";
                                        pbis.skip(2);
                                    } else if (read >= 3
                                            && buf[0] == (byte)0xef 
                                            && buf[1] == (byte)0xbb
                                            && buf[2] == (byte)0xbf) {
                                        enc = "UTF-8";

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                                    } else if (read >= 3
                                            && buf[0] == (byte)0xef 
                                            && buf[1] == (byte)0xbb
                                            && buf[2] == (byte)0xbf) {
                                        enc = "UTF-8";
                                        pbis.skip(3);
                                    } else if (read >= 4 && buf[0] == 0 &&
                                            buf[1] == 0 &&
                                            buf[2] == (byte)0xfe &&
                                            buf[3] == (byte)0xff) {
                                        enc = "UTF-32BE";

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                                    } else if (read >= 4 && buf[0] == 0 &&
                                            buf[1] == 0 &&
                                            buf[2] == (byte)0xfe &&
                                            buf[3] == (byte)0xff) {
                                        enc = "UTF-32BE";
                                        pbis.skip(4);
                                    }
                                }
                                if (enc == null) {
                                    enc = "UTF-8";
                                }

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