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jse-engine

v0.2.4

Published

JSE (JSON Structural Expression) TypeScript interpretation environment

Readme

JSE 解释环境 - TypeScript 版

JSE(JSON 结构化表达式)的 TypeScript 实现,与 Python 子目录中的实现相对应。

功能

  • 基础表达式:字面量(数字、字符串、布尔、null、数组、对象)
  • 逻辑运算$and$or$not
  • 引用$quote 不做求值直接返回
  • 转义$$ 表示字面量 $
  • 查询$expr$pattern$query 生成 SQL

安装

npm install

构建与测试

npm run build
npm test

使用示例

import { Engine, ExpressionEnv } from "jse-engine";

const engine = new Engine(new ExpressionEnv());

// 基础表达式
engine.execute(42);           // 42
engine.execute([1, 2, 3]);   // [1, 2, 3]

// 逻辑运算
engine.execute(["$and", true, true, false]);  // false
engine.execute(["$or", false, true]);        // true

// $quote 引用
engine.execute(["$quote", { foo: "bar" }]);   // { foo: "bar" }

// 查询模式
engine.execute({
  $expr: ["$pattern", "$*", "author of", "$*"]
});  // 返回 SQL 字符串

项目结构

typescript/
├── src/
│   ├── engine.ts    # 核心解释器
│   ├── env.ts       # 环境抽象
│   ├── sql.ts       # SQL 生成
│   ├── types.ts     # 类型定义
│   ├── index.ts     # 导出
│   └── __tests__/   # 单元测试
├── package.json
├── tsconfig.json
└── vitest.config.ts