context object for Engine#evaluate
ex.
template = <<'END' Hello <%= @user %>! <% for item in @list %> - <%= item %> <% end %> END context = Erubis::Context.new(:user=>'World', :list=>['a','b','c']) # or # context = Erubis::Context.new # context[:user] = 'World' # context[:list] = ['a', 'b', 'c'] eruby = Erubis::Eruby.new(template) print eruby.evaluate(context)
# File lib/erubis/context.rb, line 39 def [](key) return instance_variable_get("@#{key}") end
# File lib/erubis/context.rb, line 43 def []=(key, value) return instance_variable_set("@#{key}", value) end
# File lib/erubis/context.rb, line 51 def each instance_variables.each do |name| key = name[1..-1] value = instance_variable_get(name) yield(key, value) end end
# File lib/erubis/context.rb, line 47 def keys return instance_variables.collect { |name| name[1..-1] } end
# File lib/erubis/context.rb, line 59 def to_hash hash = {} self.keys.each { |key| hash[key] = self[key] } return hash end
# File lib/erubis/context.rb, line 65 def update(context_or_hash) arg = context_or_hash if arg.is_a?(Hash) arg.each do |key, val| self[key] = val end else arg.instance_variables.each do |varname| key = varname[1..-1] val = arg.instance_variable_get(varname) self[key] = val end end end
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