just wondering if you could do something like this…
ERB.new( some_erb_string ).result # ‘<%= result %>’ another erb
template
so that way the result could be processed by another ERB.new
On 4/6/07, talkin ruby [email protected] wrote:
just wondering if you could do something like this…
ERB.new( some_erb_string ).result # ‘<%= result %>’ another erb template
so that way the result could be processed by another ERB.new
You are an evil and twisted individual! 
To answer your question, though, sure! ERb can do that.
require ‘erb’
@blah = ‘<%= @not_blah %>’
ERB.new( “blah <%= @blah %>” ).result #=> “blah <%= @not_blah %>”
Blessings,
TwP
@maybe= val.nil? ? true : false
blah <%%= <%= @maybe %> %>
I use this format in generators for rails. I dont know if it is as
clean
looking for short example but for full rhtml pages it works well.
Stephen B. IV
On 4/6/07, Tim P. [email protected] wrote:
On 4/6/07, talkin ruby [email protected] wrote:
just wondering if you could do something like this…
ERB.new( some_erb_string ).result # ‘<%= result %>’ another erb
template
On Sat, 07 Apr 2007 04:07:16 +0900, Tim P. wrote:
To answer your question, though, sure! ERb can do that.
require ‘erb’
@blah = ‘<%= @not_blah %>’
ERB.new( “blah <%= @blah %>” ).result #=> “blah <%= @not_blah %>”
If you really want to be evil and twisted, what’s the smallest self-
reproducing erb program you can write that doesn’t read its own file.
The following solution is illegal:
<%= open(FILE){|f| f.read} %>
–Ken
thanks! that is exactly what I needed!
Ken B. wrote:
reproducing erb program you can write that doesn’t read its own file.
The following solution is illegal:
<%= open(FILE){|f| f.read} %>
I think you mean “what’s the smallest non-trivial self-reproducing erb
program…”:
irb(main):012:0> ERB.new(’ ‘).result
=> " "
irb(main):013:0> ERB.new(’’).result
=> “”
Ken B. wrote:
reproducing erb program you can write that doesn’t read its own file.
The following solution is illegal:
<%= open(FILE){|f| f.read} %>
Drat. This nearly works:
<%=s=";"<%=s=#{s.inspect}#{s}"%>";"<%=s=#{s.inspect}#{s}"%>
The only reason it doesn’t is that ERB barfs on ‘%>’ in a string inside
a <%= %> block, while String#inspect ignores it. This requires…
trickery.
Luckily, we have trickery on hand. When in doubt, reverse the data:
<%=s=">%"}esrever.s{#}tcepsni.s{#=s=%<";";"<%=s=#{s.inspect}#{s.reverse}"%>
That’s 77 characters by my count. 77 characters of pure, twisted, evil
Ken B. [email protected] writes:
ERB.new( “blah <%= @blah %>” ).result #=> “blah <%= @not_blah %>”
=> " "
irb(main):013:0> ERB.new(‘’).result
=> “”Come to think of it, ERB is way too easy a language. You have to define
non-trivial to mean “includes a <% and a %>”
irb(main):001:0> ERB.new(‘>%%<’).result
=> “>%%<”
On Sun, 08 Apr 2007 16:30:11 +0900, Alex Y. wrote:
If you really want to be evil and twisted, what’s the smallest self-
=> “”
Come to think of it, ERB is way too easy a language. You have to define
non-trivial to mean “includes a <% and a %>”
On 4/9/07, Christian N. [email protected] wrote:
Hey, that doesn’t count! It doesn’t contain ‘<%’ or ‘%>’. How about
this:
<%=File.new($FILENAME).readlines%>