# File lib/sass/error.rb, line 140 def sass_backtrace_str(default_filename = "an unknown file") lines = message.split("\n") msg = lines[0] + lines[1..-1]. map {|l| "\n" + (" " * "Error: ".size) + l}.join "Error: #{msg}" + Sass::Util.enum_with_index(sass_backtrace).map do |entry, i| "\n #{i == 0 ? 'on' : 'from'} line #{entry[:line]}" + " of #{entry[:filename] || default_filename}" + (entry[:mixin] ? ", in `#{entry[:mixin]}'" : "") end.join end