function
| Library: Buffers (OMIOBUF) Import : omiobuf.xmd | Returns: a scannable input source for streaming data | 
export external string source function 
    reader value buffer input-buffer
 Use the iobuf.reader function to read the data previously written to the buffer
      passed to it.
      
 The following program uses an instance of iobuf.reader to write data to an instance of
      iobuf.buffer, and subsequently output it.
        
import "omiobuf.xmd" prefixed by io. process local io.buffer b using output as io.writer of b output "Hello, World!%n" output io.reader of b
 To use iobuf.reader, you must import OMIOBUF into your program using an import declaration such
      as:
        
import "omiobuf.xmd" prefixed by io.