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https://github.com/flaneur2020/pua-lang

a dialect of The Monkey Programming Language
https://github.com/flaneur2020/pua-lang

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a dialect of The Monkey Programming Language

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README 

        
# pua-lang



> PUA Programming Language written in Rust.



## What's pua-lang?



pua-lang is a dialect of The Monkey Programming Language, intended to mirror the inspirational babble of Alibaba managers ("Aba-aba").

The name "pua" refers to the manipulative way Alibaba treats its employees -- much like how pickup artists treat their trophies.



This implementation is a fork of [rs-monkey-lang](https://github.com/wadackel/rs-monkey-lang).

`Monkey` is a programming language designed to learn interpreters.

It comes from [Writing An Interpreter In Go](https://compilerbook.com/).



## Try pua-lang!



### with wasm playground

https://flaneur2020.github.io/pua-lang/



We are aware that the output streams don't quite work.  Rust doesn't really

have I/O redirection and `wasm32-unknown-unknown` has no I/O by default.



### with REPL



```bash

$ git clone https://github.com/flaneur2020/pua-lang.git

$ make repl

```



## Documentation



:warning: **Please note that there may be some mistakes.**



### Summary



- Everything Monkey has:

  - C-like syntax

  - variable bindings

  - integers and booleans

  - a string data structure

  - an array data structure

  - a hash data structure

  - arithmetic expressions

  - built-in functions

  - first-class and higher-order functions • closures

- Unicode identifiers (UAX #31, XID) plus monetary extensions (`[¥$_]`) and an overly-lax definition of Emojis.

- Rust-compatible double-quoted string syntax.

- Ridiculous naming for the Aba-aba. Comparison with Monkey:



|Monkey|pua-lang|Explanation|

|---|---|---|

|if|细分|"specialization"|

|else|路径|"pathway"|

|while|闭环|"closed loop"|

|break|破圈|"break the circle"|

|true|三七五|"3.75", a passing performance evalulation result|

|false|三二五|"3.25", a failing performance evalulation result|

|let|赋能|"empower"|

|fn|抓手|"handle", as in getting a handle on things|

|return|反哺|"repay", used in Alibaba as a general term for feedback in systems|

|Array|组合拳|"combo move"; not yet a word in the language|

|Hash|载体|"carrier"; not yet a word in the language|

|=|对齐|"align"|

|+|联动|"linkage"|

|-|差异|"difference"|

|/|倾斜|"tilt"|

|puts|输出|"output"|

|quit|淘汰|"eliminate"|

|(atoi)|量化|quantify



The precise set of renames may change from time to time as we explore new ~~avanues of profit~~ pathways to the full enablement of our ~~shareholders~~ customers. You are encouraged to (ahem) carefully study the spirit of `src/lexer/mod.rs` and `src/evaluator/builtins.rs` in order to align yourself with Ali-speak and maximize your output.



### Syntax overview



An example of Fibonacci function.



```

赋能 fib = 抓手(x) {

  细分 (x 对齐 0) {

    反哺 0;

  }

  细分 (x 对齐 1) {

    反哺 1;

  } 路径 {

    反哺 fib(x - 1) 联动 fib(x - 2);

  }

};



fib(10);

```



#### 细分



细分 supports the general `细分`. `路径` exists, but` 细分 路径` does not exist yet.



```

细分 (三七五) {

  10;

} 路径 {

  5;

}

```



#### 闭环



With the 闭环 we can execute a set of statements as long as a condition is 三七五.



```

闭环 (三七五) {

    输出("年年有抓手");

}

```



#### Operators



It supports the general operations.



```

1 + 2 + (3 * 4) - (10 / 5);

!三七五;

!三二五;

+10;

-5;

"年年有抓手" + " " + "岁岁有闭环";

```



#### 反哺



It returns the value immediately. No further processing will be executed.



```

细分 (三七五) {

  反哺;

}

```



```

赋能 不变 = 抓手(工资p6) {

  反哺 工资p6;

};



不变("👨‍💻🐒烧酒");

```



### 赋能



赋能, such as those supported by many programming languages, is implemented. Variables can be defined using the `赋能` keyword.



**Format:**



```

赋能  = ;

```



**Example:**



```

赋能 x = 0;

赋能 y = 10;

赋能 福报 = add(5, 5);

赋能 alias = 福报;

赋能 identity = 抓手(x) { x };

```



### Literals



Five types of literals are implemented.



#### Integer



`Integer` represents an integer value. Floating point numbers can not be handled.



**Format:**



```

[-+]?[1-9][0-9]*;

```



**Example:**



```

10;

1234;

```



#### Boolean



`Boolean` represents a general boolean type.



**Format:**



```

三七五 | 三二五;

```



**Example:**



```

三七五;

三二五;



赋能 truthy = !三二五;

赋能 falsy = !三七五;

```



#### String



`String` represents a string. Only double quotes can be used.



**Format:**



```

"";

```



**Example:**



```

"Monkey Programming Language";

"Hello" + " " + "World";

```



#### 组合拳



`组合拳` represents an ordered contiguous element. Each element can contain different data types.



**Format:**



```

[, , ...];

```



**Example:**



```

[1, 2, 3 + 3, fn(x) { x }, add(2, 2), 三七五];

```



```

赋能 组合拳 = [1, 三七五, 抓手(x) { x }];



组合拳[0];

组合拳[1];

组合拳[2](10);

组合拳[1 + 1](10);

```



#### 载体



`载体` expresses data associating keys with values.



**Format:**



```

{ : , : , ... };

```



**Example:**



```

赋能 载体 = {

  "name": "Jimmy",

  "age": 72,

  三七五: "a boolean",

  99: "an integer"

};



载体["name"];

载体.name;

载体["a" + "ge"];

载体[三七五];

载体[99];

载体[100 - 1];

```



#### 抓手



`抓手` supports functions like those supported by other programming languages.



**Format:**



```

抓手 (, , ...) {  };

```



**Example:**



```

赋能 add = 抓手(x, y) {

  反哺 x 联动 y;

};



add(10, 20);

```



```

赋能 add = 抓手(x, y) {

  x 联动 y;

};



add(10, 20);

```



If `反哺` does not exist, it returns the result of the last evaluated expression.



```

赋能 addThree = 抓手(x) { x + 3 };

赋能 callTwoTimes = 抓手(x, f) { f(f(x)) };



callTwoTimes(3, addThree);

```



Passing around functions, higher-order functions and closures will also work.



### Built-in Functions



You can use 1 built-in function :rocket:



#### `输出(, , ...): void`



It outputs the specified value to `stdout`. In the case of Playground, it outputs to `console`.



```

输出("年年有抓手");

输出("岁岁有闭环!");

```