From: James Edward Gray II <james@...>
Date: 2007-05-20T00:27:15+09:00
Subject: Re: PrettyPrint to a web page?

On May 18, 2007, at 6:40 PM, Mario T. Lanza wrote:

> This is gonna sound like a dumb question to you Ruby veterans, but:  
> How
> do you dump pretty_print contents to a web page from within a Rails  
> app?
>
> I've tried this and a few other things from a view:
>
> <h1>Session Info</h1>
> <% require 'pp' %>
> <%= pp(session) %>

Change that last line to:

<%= PP.pp(session, String.new) %>

pp() accepts a second argument to specify where to put the output.   
This just defaults to $> ($stdout).  If we specify a String, the  
output is collected there instead:

 >> require "pp"
=> false
 >> Contact = Struct.new(:name, :city, :state, :email)
=> Contact
 >> james = Contact.new("James Edward Gray II", "Edmond", "Oklahoma",  
"james@grayproductions.net")
=> #<struct Contact name="James Edward Gray II", city="Edmond",  
state="Oklahoma", email="james@grayproductions.net">
 >> pp_james = String.new
=> ""
 >> PP.pp(james, pp_james)
=> "#<struct Contact\n name="James Edward Gray II",\n city="Edmond", 
\n state="Oklahoma",\n email="james@grayproductions.net">\n"
 >> puts pp_james
#<struct Contact
name="James Edward Gray II",
city="Edmond",
state="Oklahoma",
email="james@grayproductions.net">
=> nil

James Edward Gray II