Snobol4【1】 语言实战:IP 地址端口【2】合法性校验【3】实战
Snobol4 是一种古老的编程语言,最初由 Calvin Mooers 在 1962 年设计。它以其简洁的语法和强大的字符串处理能力【4】而闻名。尽管 Snobol4 在现代编程语言中并不常见,但它仍然在一些特定的领域和场景中有着独特的应用价值。本文将围绕 Snobol4 语言,探讨如何实现 IP 地址和端口的合法性校验。
Snobol4 简介
Snobol4 是 Snobol 系列编程语言的第四个版本,它继承了 Snobol3 的语法和功能,并在此基础上进行了扩展。Snobol4 的主要特点包括:
- 强大的字符串处理能力
- 简洁的语法
- 高效的运行速度
- 支持多种数据类型,包括字符串、整数和浮点数
IP 地址和端口合法性校验
IP 地址和端口是计算机网络中非常重要的概念。IP 地址用于标识网络中的设备,而端口则用于标识设备上的特定服务。在进行网络通信时,确保 IP 地址和端口的合法性至关重要。
IP 地址合法性校验
IP 地址由四个十进制数组成,每个数介于 0 到 255 之间,数与数之间用点号分隔。以下是一个使用 Snobol4 实现的 IP 地址合法性校验的示例代码:
```snobol
:ipaddr
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