From: Jean-Hugues ROBERT <jean_hugues_robert@...>
Date: 2002-05-11T19:09:00+09:00
Subject: Re: cgi params api

Hello,

At 18:16 11/05/2002 +0900, you wrote:
>On Sat, May 11, 2002 at 06:28:45AM +0900,
>  Jean-Hugues ROBERT wrote:
>
> > Yes ! That works. I learned it recently ! You basically
> > *.extend* "value" so that it now have a singleton method called
> > .values(). Cool, isn't it ?
>
>cgi["name"].values
>cgi.params["name"]
>
>same length ;-)

Well... I was comparing .values() versus .multiple()...

> > I may still prefer cgi.name.values however (if I were to think about
> > it more).
>
>It limits identifire.
>
>cgi.query_string, cgi.path_info, cgi.script_name, ...
>
>cgi["query_string"]  # ok
>cgi.query_string     # bad            Wakou Aoyama  <wakou@fsinet.or.jp>

I agree. However I am developing a SIP tool where I handle this differently.
In SIP, names can be spelled in many different ways, case is insensitive and
there is even a "Compact" form for some common names. So I ended up handling
these names in what I called a "Cannonical" form. As a result I made it so
that the "Cannonical" name would be a Ruby Symbol.

The Rule is simple:
   1) Get name
   2) Uppercase it
   3) Lookup in some hash to see if this is a valid name
   4) The hash associate the canonical name to the Uppercase name
You initialize the hash using whatever rule fits your style. For me:
   1) Lower case everything
   2) Break name in space separated words
   3) Capitalize each word
   4) Join them
   5) Make a Symbol
As a result:
   Content-Length becomes :ContentLength
   param-string would become ParamString

If you don't like CamelCase, just change the rule:
   Content-Length becomes content_length
   ...

What you get:
   1) Reduced impedance mismatch between Ruby and the protocol
   2) Higher speed (Symbol being faster than String)

Yours,

Jean-Hugues


-------------------------------------------------------------------------
Web:  http://hdl.handle.net/1030.37/1.1
Phone: +33 (0) 4 92 27 74 17