Performing Random Access on Read-Once Input Streams : StringIO « File Directory « Ruby






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  3. StringIO

Performing Random Access on Read-Once Input Streams


require 'socket'
require 'stringio'

sock = TCPSocket.open("www.example.com", 80)
sock.write("GET /\n")

file = StringIO.new(sock.read)
file.read(10)                                   # => "<HTML>\r\n<H"
file.rewind
file.read(10)                                   # => "<HTML>\r\n<H"
file.pos = 90
file.read(15)                                   # => " this web page "








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