Snobol4 语言 实战 JSON 数组元素类型校验实战

Snobol4阿木 发布于 2025-06-03 9 次阅读

Snobol4【1】 语言实战：JSON【2】 数组元素类型校验【3】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。

我们将探讨如何使用Snobol4语言来实现一个简单的JSON数组【4】元素类型校验器。JSON（JavaScript Object Notation）是一种轻量级的数据交换格式，易于人阅读和编写，同时也易于机器解析和生成。JSON数组是一种包含多个值的数据结构，这些值可以是不同的数据类型。

Snobol4 简介

Snobol4是一种高级编程语言，它主要用于文本处理。它的语法简洁，易于理解，但同时也非常强大。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
- 支持递归【5】和模式匹配【6】

JSON数组元素类型校验

JSON数组元素类型校验是一个常见的任务，特别是在数据清洗【7】和验证过程中。以下是一个使用Snobol4语言实现的简单JSON数组元素类型校验器的示例。

1. 定义JSON数组

我们需要定义一个JSON数组。在Snobol4中，我们可以使用字符串来表示JSON数组。

snobol
:json-array
'["string", 123, true, null, {"key": "value"}, [1, 2, 3]]'

2. 元素类型校验

接下来，我们将编写一个Snobol4程序来遍历JSON数组，并对每个元素进行类型校验。

```snobol
:element-type-checker
PUT json-array
PUT element-type
PUT result
PUT "Elements are of correct type."
PUT "Elements contain incorrect types."
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "
PUT " "