Snobol4 语言 实战 URL 路径参数清洗实战

Snobol4阿木 发布于 10 天前 4 次阅读

Snobol4 语言实战：URL 路径参数清洗实战

Snobol4 是一种古老的编程语言，最初在1962年由David J. Farber、Ralph E. Griswold 和 Ivan P. Polonsky 在贝尔实验室开发。它以其简洁的语法和强大的字符串处理能力而闻名。尽管在现代编程中Snobol4 已经不再流行，但它在处理字符串和文本方面仍然有其独特的优势。本文将围绕Snobol4 语言，通过一个实际的案例——URL 路径参数清洗，来展示Snobol4 语言在文本处理方面的能力。

Snobol4 简介

Snobol4 是 Snobol 系列语言的第四个版本，它继承了 Snobol3 的语法和功能，并增加了一些新的特性。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、数字和布尔值

URL 路径参数清洗背景

在Web开发中，URL 路径参数是传递数据的一种常见方式。由于用户输入的不确定性，URL 路径中可能包含非法字符、多余的空格或者格式错误。对URL路径参数进行清洗是确保应用程序稳定性和安全性的重要步骤。

实战案例：URL 路径参数清洗

以下是一个使用Snobol4 语言编写的URL路径参数清洗的示例代码。该代码将接收一个包含URL路径参数的字符串，并对其进行清洗，去除非法字符、多余的空格，并确保参数格式正确。

```snobol
:clean-url (url)
| "http://" | "https://" | "www." | "." | " " | "," | ";" | "?" | "&" | "="
| "!" | "@" | "" | "$" | "%" | "^" | "&" | "" | "(" | ")" | "[" | "]" | "" | "|" | "`" | "-"
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