# File lib/rmail/address.rb, line 201 def format display_name = if @display_name.nil? nil elsif @display_name =~ /^[-\/\w=!#\$%&'*+?^`{|}~ ]+$/ @display_name else '"' + @display_name.gsub(/["\\]/, '\\\\\&') + '"' end local = if (@local !~ /^[-\w=!#\$%&'*+?^`{|}~\.\/]+$/ || @local =~ /^\./ || @local =~ /\.$/ || @local =~ /\.\./) '"' + @local.gsub(/["\\]/, '\\\\\&') + '"' else @local end domain = if (!@domain.nil? and (@domain !~ /^[-\w=!#\$%&'*+?^`{|}~\.\/]+$/ || @domain =~ /^\./ || @domain =~ /\.$/ || @domain =~ /\.\./)) then '[' + if @domain =~ /^\[(.*)\]$/ $1 else @domain end.gsub(/[\[\]\\]/, '\\\\\&') + ']' else @domain end address = if domain.nil? local elsif !display_name.nil? or domain[-1] == ?] '<' + local + '@' + domain + '>' else local + '@' + domain end comments = nil comments = unless @comments.nil? @comments.collect { |c| '(' + c.gsub(/[()\\]/, '\\\\\&') + ')' }.join(' ') end [display_name, address, comments].compact.join(' ') end