Snobol4 语言 实战 JSON 嵌套对象噪声清洗实战

Snobol4阿木 发布于 9 天前 5 次阅读

Snobol4【1】 语言实战：JSON【2】 嵌套对象【3】噪声清洗实战

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 设计。它以其强大的字符串处理【4】能力而闻名，但在现代编程中并不常见。在某些特定的应用场景中，如文本处理和数据处理，Snobol4 仍然有其独特的优势。本文将探讨如何使用 Snobol4 语言进行 JSON 嵌套对象噪声清洗实战。

JSON 嵌套对象噪声清洗背景

在数据处理过程中，经常会遇到各种噪声数据【5】，这些噪声数据可能会影响后续的数据分析和处理。JSON（JavaScript Object Notation）是一种轻量级的数据交换格式，常用于存储和传输数据。在处理 JSON 数据时，嵌套对象的存在使得噪声清洗变得更加复杂。

Snobol4 语言简介

Snobol4 是一种基于字符串的编程语言，它具有以下特点：

- 强大的字符串处理能力
- 简洁的语法
- 高效的运行速度

Snobol4 的语法相对简单，主要由模式【6】（patterns）、动作【7】（actions）和规则【8】（rules）组成。模式用于匹配字符串，动作用于执行操作，规则则用于定义程序的行为。

实战：JSON 嵌套对象噪声清洗

1. 数据准备

我们需要准备一些包含噪声的 JSON 数据。以下是一个示例：

json
{
"users": [
{
"id": "1",
"name": "John Doe",
"email": "john.doe@example.com",
"address": {
"street": "123 Main St",
"city": "Anytown",
"zipcode": "12345"
}
},
{
"id": "2",
"name": "Jane Smith",
"email": "jane.smith@invalid-email",
"address": {
"street": "456 Elm St",
"city": "Othertown",
"zipcode": "67890"
}
}
]
}

在这个示例中，`email` 字段包含了一些无效的电子邮件地址【9】。

2. Snobol4 代码实现

接下来，我们将使用 Snobol4 语言编写一个程序来清洗上述 JSON 数据中的噪声。

```snobol
:read json
:parse json
:clean email
:output clean_json

read json
parse json
clean email
output clean_json
halt

parse json
| "users" [user]
| user [id, name, email, address]
| email [valid_email]
| email
| " " [at]
| " " [domain]
| " " [tld]
| " " [valid_email]
| " " [email]
| " " [at]
| " " [domain]
| " " [tld]
| " " [email]
| " " [at]
| " " [domain]
| " " [tld]
| " " [email]
| " " [at]
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