Snobol4 语言 实战 IP 地址 CIDR 格式解析实战

Snobol4amuwap 发布于 4 天前 2 次阅读

Snobol4【1】 语言实战：IP 地址 CIDR【2】 格式解析实战

Snobol4 是一种古老的编程语言，由David J. Farber、John Backus 和 John G. Kemeny 在1962年设计。它以其简洁的语法和强大的字符串处理【3】能力而闻名。尽管在现代编程中Snobol4 已不常见，但它在某些领域，如文本处理和数据处理，仍然有其独特的应用价值。

本文将围绕Snobol4 语言，通过一个实战案例——IP 地址 CIDR 格式解析，来展示Snobol4 语言在数据处理方面的能力。

Snobol4 语言简介

Snobol4 是一种高级编程语言【4】，它具有以下特点：

- 字符串处理：Snobol4 非常擅长处理字符串，提供了丰富的字符串操作函数。
- 模式匹配【5】：Snobol4 支持强大的模式匹配功能，可以轻松处理复杂的字符串模式。
- 紧凑的语法：Snobol4 的语法简洁，易于阅读和理解。

IP 地址 CIDR 格式解析

CIDR（Classless Inter-Domain Routing）是一种用于IP地址【6】分配和路由的机制。它通过将IP地址和子网掩码【7】合并为一个32位的数字，来表示网络地址和子网掩码。

CIDR 格式

CIDR 格式通常表示为 `IP地址/子网掩码位数`。例如，`192.168.1.0/24` 表示一个IP地址为 `192.168.1.0`，子网掩码为 `/24`，即前24位为网络部分。

Snobol4 代码实现

以下是一个使用Snobol4 语言实现的CIDR格式解析程序：

```snobol
:parse-cidr
input
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