From: Boris Glawe <boris@...>
Date: 2005-06-21T06:20:35+09:00
Subject: cgi question

Hi, the following code results in NoMethodError, when being executed as a cgi 
script.

The reason is the line "+ cgi.b {"hello world in bold"}" at the bottom.

Can anybody explain me, what's happening here?
The preceding block simply returns a (html) string, containing a form, which is 
concatenated with "<b>hello world in bold</b>"

Do you have any idea?


thanks Boris


#!/usr/bin/ruby

require "cgi"


cgi=CGI.new("html4")

cgi.out {

  CGI.pretty(
   cgi.html{
    cgi.head{
     cgi.title{ "testpage" }
    } +
    cgi.body{
     cgi.form{
      cgi.table( {'border' => '1'} ){
       cgi.tr {
        cgi.td{ "hello"} +
        cgi.td {"world"}
       } # end tr
      } # end table
     } # end form
  + cgi.b {"hello world in bold"}
    } # end head
   } # end html
  ) # end CGI#pretty

} # end cgi.out
#############################################################

the error message:

# ./test.rb
(offline mode: enter name=value pairs on standard input)
../test.rb:24: undefined method `+@' for "<B>hello world in bold</B>":String 
(NoMethodError)
         from ./test.rb:15:in `body'
         from ./test.rb:15
         from ./test.rb:11:in `html'
         from /usr/lib/ruby/1.8/cgi.rb:1653:in `html'
         from /usr/lib/ruby/1.8/cgi.rb:1653:in `html'
         from ./test.rb:11
         from ./test.rb:8:in `out'
         from ./test.rb:8