Erubis 介绍
Erubis 是一个快速、安全和具备高可扩展性的 eRuby 的实现，主要特征如下：
- 快速，几乎是 ERB 的三倍，比用C开发的eRuby还要快10%
- File caching of converted Ruby script support.
- Auto escaping (sanitizing) support, it means that ‘<%= %>’ can be escaped in default. It is desirable for web application.
- Spaces around ‘<% %>’ are trimmed automatically only when ‘<%’ is at the beginning of line and ‘%>’ is at the end of line.
- Embedded pattern changeable (default ‘<% %>’), for example ‘[% %]’ or ‘<? ?>’ are available.
- Enable to handle Processing Instructions (PI) as embedded pattern (ex. ‘<?rb … ?>’). This is desirable for XML/HTML than ‘<% .. %>’ because the latter breaks HTML design but the former doesn’t.
- Multi-language support (Ruby/PHP/C/Java/Scheme/Perl/Javascript).
- Context object available and easy to combine eRuby template with YAML datafile (see the below example).
- Print statement available.
- Easy to expand and customize in subclass
- Ruby on Rails support.
- Mod_ruby support.
下图是几个嵌入式 Ruby 的性能比较：
Erubis 官网
http://www.kuwata-lab.com/erubis/
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