Snobol4 语言 实战 IP 地址段格式统一实战

Snobol4^【1】 语言实战：IP 地址段格式统一实战

Snobol4 是一种古老的编程语言，最初在1962年由David J. Farber、Peter J. Deutsch 和 Thomas E. Kurtz 设计。它以其简洁的语法和强大的字符串处理^【2】能力而闻名。尽管在现代编程中Snobol4 已经很少使用，但它仍然是一个有趣的语言，可以用来解决一些特定的问题。本文将探讨如何使用Snobol4 语言实现IP地址段^【3】的格式统一。

IP地址段格式统一的需求

在计算机网络中，IP地址段是一个非常重要的概念。它表示一组连续的IP地址，通常用于定义网络的范围。由于不同的原因，IP地址段可能会以不同的格式出现，例如：

- 192.168.1.1-192.168.1.10
- 192.168.1.1/10
- 192.168.1.1-192.168.1.255

为了方便管理和使用，我们需要将这些IP地址段统一到一个标准的格式中。例如，我们可以将它们统一为“192.168.1.1/10”这样的CIDR^【4】（Classless Inter-Domain Routing）格式。

Snobol4 语言简介

Snobol4 是一种高级编程语言，特别适合于文本处理和字符串操作。它的语法简洁，易于理解。以下是Snobol4 的一些基本语法元素：

- 变量：使用字母、数字和下划线组成，以字母开头。
- 字符串：使用双引号包围。
- 控制结构^【5】：包括if-then-else、while、for等。
- 函数：Snobol4 提供了一些内置函数^【6】，如length、index、sort等。

实现IP地址段格式统一

下面是一个使用Snobol4 实现IP地址段格式统一的示例代码：

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