From: "Hal E. Fulton" <hal9000@...>
Date: 2001-09-03T20:34:18+09:00
Subject: [ruby-talk:20768] Minor cgi.rb question

I don't have much experience with
the cgi library, but I'm wondering
about something.

Suppose I want to follow an H1
header with an H2 header. Fine...

cgi.out do
  cgi.html do
    cgi.body do
      cgi.h1 { "Larger header" } +
      cgi.h2 { "Smaller header" }
    end
  end
end

This works as expected... but I'm 
not certain I understand the design
decision that requires me to 
concatenate the strings so that the
block will return that string value.

I.e., the code says "content = yield",
grabbing the result of the block...

Couldn't it have been written in such 
a way that output would have been
done as we went along, or at least
collected as we went along? 

Then it would be the whole contents
of the block that mattered, not just the
return value. (After all, if I leave out the
plus sign above, currently I get only a 
single h2 header.)

What I'm asking is: Is there a good 
reason it behaves this way?

Hal