Internet technical specifications often need to define a format syntax and are free to employ whatever notation their authors deem useful. Over the years, a modified version of BNF, called ABNF, has been popular among many Internet specifications. It balances compactness and simplicity with reasonable representational power.
互联网技术规范经常需要定义一种格式化语法并能自由地使用作者认为是有用的任何符号。多年来，巴克斯范式(BNF)的一个修订版，即扩展巴克斯范式(ABNF)，已经在许多互联网规范中流行。该版本平衡了压缩性和简单性，具有合理的表达能力。 |
