On Mon, 28 Nov 2005 12:00:37 -0000, email@example.com wrote:
What is ERB?
I had assumed that it would be possible to convert a single quote
string to a double quote string and that would take care of it. Is
that not possible. Maybe I’m looking at this the wrong way.
Substitution is done with the syntax you mention in my current version
of Rails. Is ERB what they use?
It is probably possible, maybe using the special quoting operators and
forth, but I imagine it is messy and problematic (?).
There appears to be some automagic escaping going on when # is read into
double quoted strings, or something like that.
Rails does use ERB, and I think I’d still suggest it. It’s ‘Embedded
Ruby’. With 1.8 it comes as standard (at least with 1.8.3). You can use
sturf = [‘just’, ‘some’, ‘stuff’]
src = “<% sturf.length.times do |i| %><%= sturf[i] %> <% end %>”
text = ERB.new(src).result # => "just some stuff "
You can pass a binding to the ‘result’ method, so that you can do the
@foo = 'bar'
s = SomeClazz.new.set_some_var.render_text(’<%= @foo %>’) # => “bar”
There is also a native version of ERB as a command - try ‘erb’ at your
prompt (I found it’s -x option quite helpful when debugging template