Examples of java.io.PushbackInputStream.unread()

java.io.PushbackInputStream.unread()
Pushes back a byte by copying it to the front of the pushback buffer. After this method returns, the next byte to be read will have the value (byte)b. @param b the int value whose low-order byte is to be pushed back. @exception IOException If there is not enough room in the pushbackbuffer for the byte, or this input stream has been closed by invoking its {@link #close()} method.

                    new FileInputStream(defectLogFilename));
        int c = pin.read();
        if (c == -1) { // empty file
            ;
        } else if (c == '<') { // xml format
            pin.unread(c);
            results = readDefectsFromXml(pin);
        } else { // tab-delimited format
            pin.unread(c);
            results = readTabDelimitedDefects(pin);
        }

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            ;
        } else if (c == '<') { // xml format
            pin.unread(c);
            results = readDefectsFromXml(pin);
        } else { // tab-delimited format
            pin.unread(c);
            results = readTabDelimitedDefects(pin);
        }
    } catch (FileNotFoundException f) {
      System.out.println("FileNotFoundException: " + f);
    } catch (SAXException i) {

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    throw new IllegalArgumentException("The document is really a RTF file");
  }


  // OK, so it's not RTF
  // Open a POIFSFileSystem on the (pushed back) stream
  pis.unread(first6);
  return new POIFSFileSystem(pis);
  }


  /**
   * This constructor loads a Word document from an InputStream.

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        LongField signature = new LongField(HeaderBlockConstants._signature_offset, header);


        // Wind back those 8 bytes
        if(inp instanceof PushbackInputStream) {
            PushbackInputStream pin = (PushbackInputStream)inp;
            pin.unread(header);
        } else {
            inp.reset();
        }


        // Did it match the signature?

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    throw new IllegalArgumentException("The document is really a RTF file");
  }


  // OK, so it's not RTF
  // Open a POIFSFileSystem on the (pushed back) stream
  pis.unread(first6);
  return new POIFSFileSystem(pis);
  }


  /**
   * This constructor loads a Word document from an InputStream.

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      tempOut.writeUTF(marker);
      
      byte[] bytesToPutBack = tempByteOut.toByteArray();
      
      PushbackInputStream pushbackStream = new PushbackInputStream(in, bytesToPutBack.length);
      pushbackStream.unread(bytesToPutBack);
      
      return pushbackStream;
    }
    
  }

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      encoding = defaultEncoding;
      unread = n;
    }


    if (unread > 0)
      tempIn.unread(bom, (n - unread), unread);
    else if (unread < -1)
      tempIn.unread(bom, 0, 0);


    // Use given encoding
    if (encoding == null) {

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    }


    if (unread > 0)
      tempIn.unread(bom, (n - unread), unread);
    else if (unread < -1)
      tempIn.unread(bom, 0, 0);


    // Use given encoding
    if (encoding == null) {
      internalIn = new InputStreamReader(tempIn);
      encoding = internalIn.getEncoding(); // Get the default.

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          // LF
        } else if (c == 13) {
          // CR
          c = f.read();// fgetc(f);
          if (c != 10)
            f.unread(c);// ungetc (c,f);
        } else
          f.unread(c);// ungetc (c,f);


        // read in rest of data
        // image_data = new byte [image_width*image_height*3];

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          // CR
          c = f.read();// fgetc(f);
          if (c != 10)
            f.unread(c);// ungetc (c,f);
        } else
          f.unread(c);// ungetc (c,f);


        // read in rest of data
        // image_data = new byte [image_width*image_height*3];
        image_data = BufferUtils.createByteBuffer(image_width
            * image_height * 3);

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