# Lightweight-ScriptLang

**Repository Path**: langhat/lw-script

## Basic Information

- **Project Name**: Lightweight-ScriptLang
- **Description**: lw-script is a lightweight script pl.it's clean.
- **Primary Language**: Unknown
- **License**: GPL-3.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 2
- **Forks**: 1
- **Created**: 2025-12-05
- **Last Updated**: 2026-01-14

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# LW-Script
LightWeight-ScriptLang是一个脚本语言，它的语法简洁，同时类C且现代化，支持函数做一等公民，动态类型和高扩展性。

## 理念
我受够了CPP的ugly，于是我设计了lw，<br>
作为一个低性能语言，它的语法将十分简洁，适合艺术家式的程序员使用，<br>
代码可读性高

## 目标(Gram in The Future)
```lw
import std;
foo = {
	bind(x,y);
	return x+y;
};
dup = (x) => 2*x;
mutable x = 2;
y=1;
std.print("{},{}\n",foo(x,y),dup(y));
x=dup(y);
y=foo(x,y);//报错，期望一个左值，但是一个右值
main = {
	using std;
	println("Hello,world!");
};
main();
```

## 现在开始

### 下载
Windows:
```bash
git clone https://www.gitee.com/langhat/lw-script
cd lw-script\programs
g++ main.cpp -o lw.exe -std=c++20
```
GNU/Linux:
```bash
git clone https://www.gitee.com/langhat/lw-script
cd lw-script/programs
g++ main.cpp -o lw -std=c++20
```

### 使用
目前只支持`help`和`man`指令，无论如何自动进入`REPL(debug)`模式，语句以`;`结束，输入`exit();`以结束REPL

#### exit
```lw
exit();
```
使用这个关键字结束repl

#### out
```lw
out(<value>);
```
调用printVisitor输出

#### object
```lw
object(key1,val1, key2,val2, ...keyN,valN...);
```
创建一个object

#### #autoconnect
```lw
#autoconnect
```
REPL中,使用它开启未输入分号自动继续读取,及在行尾无`;`是自动添加`\\`

#### vector
```lw
vector(val1,val2,val3, ...valN...);
```
创建一个vector

#### 赋值/变量
```lw
[mutable] <var name> = <def value>;
```
创建一个可变或不可变变量,默认不可变

#### 函数
```lw
{
	[return=<...>;]
}
```
创建一个函数值
eg. 函数做一等公民
```lw
val=123;
wrong={
	return=val;//正确
};
right={
	return=$val$;//把val catch进来,正确
};
get_get_right={
	right=$right$;
	return={
		return=$right$;
	};
};
get_right()()();//123

foo={
	bind(x,y);
	return=x+y;
};
foo(2,5);//7

```

#### for

```lw
for(<init command>,<cond expr>,<step command>){
	//for body
};

```

#### type translate

```lw
<type name:int,double,str,bool>(<value>);
```
turn a value into a other type.

#### package

import a package:
```lw
import <package name>;
```

a struct of a package:
```lw
//package1.lw
package(example);
example.a={
	bind(f);
	return=f();
};
```