Environment for template evaluation.

Methods
#
Instance Public methods
__block_content__(*block_args)

Returns an array of things that the given block wants to append to the buffer. If the given block does not want to append to the buffer, then returns the result of invoking the given block inside an array.

Source: show | on GitHub 

# File lib/erbook/template.rb, line 100
      def __block_content__ *block_args
        raise ArgumentError, 'block must be given' unless block_given?

        original = @buffer

        begin
          block_content = @buffer = []
          return_value  = yield(*block_args) # this appends content to @buffer
        ensure
          @buffer = original
        end

        if block_content.empty?
          [return_value]
        else
          block_content
        end
      end