binary file dump

dump.scala

	def dump {
		val cur = file.getFilePointer
		val width = 16
		
		file.seek( 0 )
		
		def printByte( b: Int ) = print( "%02x ".format(b&0xFF).toUpperCase )
		
		def printChar( c: Int ) = print( if (' ' <= c && c <= '~') c.asInstanceOf[Char] else '.' )
		
		for (line <- 0L until file.length by width) {
			print( "%10x  ".format(line).toUpperCase )
			
			val mark = file.getFilePointer
			
			for (i <- line until ((line + width) min file.length)) {
				if (i%16 == 8)
					print( ' ' )
					
				printByte( file.readByte )
			}
			
			val bytes = (file.getFilePointer - mark).asInstanceOf[Int]
			
			print( " "*((width - bytes)*3 + 1 + (if (bytes < 9) 1 else 0)) )
			
			file.seek( mark )
			
			for (i <- line until ((line + width) min file.length))
				printChar( file.readByte.asInstanceOf[Int] )
				
			println
		}
		
		file.seek( cur )
	}