From: "Ara.T.Howard" <ahoward@...>
Date: 2003-10-04T09:52:45+09:00
Subject: Re: CGI and Webrick

On Sat, 4 Oct 2003, Ben Giddings wrote:

> Hey all,
>
> I've just started poking at three Ruby tools I haven't yet used: DBI,
> Webrick, and CGI, and have a few questions:
>
> * Is there good documentation for these somewhere?  The distribution site
> for DBI has one page listing methods for some of the objects, but not
> others.  For example, DBI::Row doesn't seem to be documented at all.
> Webrick seems about the same, there are some quick examples, but no API
> documentation I could find.
>
> * Is there a way to get CGI to simply generate HTML?  I managed to get it
> to stop prompting me to set variables using:
>
> echo | ruby my_cgi_using_prog.rb

even better (if you want to test input parameters) is

~ > cat input
key=value
a=b


ruby my_cgi_using_prog.rb < input

if no values

ruby my_cgi_using_prog.rb < /dev/null


if you want to generate html - check out amrita or misen.

eg.

----CUT----
#!/usr/bin/env ruby
require 'amrita/template'

template = Amrita::TemplateText.new <<-html
  <html>
    <body>
      <table>
        <tr id=rows>
          <td id=name></td><td id=ssn></td>
        </tr>
      </table>
    </body>
  </html>
html

data = Hash[
  :rows => [
    {:name => 'joe', :ssn => '574-86-5022'},
    {:name => 'jane', :ssn => '574-86-5021'},
  ]
]

template.expand STDOUT, data

__END__

OUTPUT:

<html>
  <body>
    <table>
      <tr>
        <td>joe</td><td>574-86-5022</td>
      </tr><tr>
        <td>jane</td><td>574-86-5021</td>
      </tr>
    </table>
  </body>
</html>
----CUT----


it's powerfull.

-a

>
> But then it throws on content-type headers, which I don't want in my output.
>
> * Does anybody have experience connecting Webrick and CGI?  Any tips, pointers?
>
> Ben
>
>
>

  ====================================
  | Ara Howard
  | NOAA Forecast Systems Laboratory
  | Information and Technology Services
  | Data Systems Group
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  | The difference between art and science is that science is what we understand
  | well enough to explain to a computer.  Art is everything else.
  |   -- Donald Knuth, "Discover"
  | ~ > /bin/sh -c 'for lang in ruby perl; do $lang -e "print \"\x3a\x2d\x29\x0a\""; done'
  ====================================