I’ve learned that in 1.8 eval is scoped like a block… I’m wondering how
I might get around that?
For a little background, here’s what I’m working on. Essentially an erb
script of Ruby examples, that lists code and output neatly. It’s
basically similar to a non-interactive version of why’s try ruby - well,
in some ways. I think…
Anyway, here’s the shell of the script which demonstrates my problem, in
case I haven’t explained myself clearly enough:
<%
require ‘syntax/convertors/html’
include ERB::Util
def output(code)
result = eval(code)
if result
result.to_s
else
“nil”
end
end
would be nice to pass this an array
of strings to be eval’d in sequence too
def ruby(code)
convertor = Syntax::Convertors::HTML.for_syntax “ruby”
“<div class=“examplelist”>” +
“<div class=“example”>” +
“<div class=“code”>” +
convertor.convert( code.gsub(/\t/," ") ) +
“” +
“<div class=“output”>” +
h(output(code)) +
“” +
“”
end
%>
<%= ruby( <<EOS
a = 1 + 2
EOS
) %>
<%= ruby( <<EOS
a # undefined because in 1.8 eval is scoped like blocks
EOS
) %>
Thanks,
Steve