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To: cs551@merlot.usc.edu
Subject: Re: CS551: Final Project 2 : Search and Get commands
Date: Sat, 22 Nov 2008 20:35:29 -0800
From: Bill Cheng <william@bourbon.usc.edu>

Someone wrote:

  > this is the sequence of commands i meant in the previous case:
  > 
  > servant:XXXXX> search filename=foo
  > /*
  > search results, 1,2,3...
  > */
  > servant:XXXXX> gte 2
  > /*
  > error message, as its a wrong input
  > */
  > servant:XXXXX> get 2
  > 
  > what would be the behaviour now ?

If you've made a typo in your command, it should be treated
as if you have never entered the command.

Your user interface should have a state, which can be the
last valid command that was processed.
--
Bill Cheng // bill.cheng@usc.edu <URL:http://merlot.usc.edu/william/usc/>




  On Fri, Nov 21, 2008 at 8:37 AM, Bill Cheng <william@bourbon.usc.edu> wrote:
  > Someone wrote:
  >
  >  > we have the following:
  >  > "Please note that a get command should not be allowed if it does not
  >  > immediately follow a search or a get command."
  >  >
  >  > now, if a user performs the following at the prompt, should it be
  > allowed or
  >  > not ?
  >  >
  >  > servant:XXXXX> search filename=foo
  >  > /*
  >  > search results, 1,2,3...
  >  > */
  >   > servant:XXXXX> get 2
  >   > /*
  >  > error message, as its a wrong input
  >  > */
  >  > servant:XXXXX> get 2
  >  >
  >  > should the last get command be processed ?
  >
  > I don't know why you said that the first "get 2" has a "wrong input".
  >
  > If the first "get 2" was successful, then for the 2nd "get 2",
  > you should follow the first bullet in the "Additional Notes
  > on File Retrieval (for Part 2 only)" section of the spec.
  > --
  > Bill Cheng // bill.cheng@usc.edu <URL:http://merlot.usc.edu/william/usc/>