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# tiny_captcha : rust 轻量级验证码生成器，可以编译成 wasm
[→ 中文说明](#cn)
# tiny_captcha : rust lightweight captcha generator that compiles to wasm
[Project documentation](https://docs.rs/tiny_captcha)
Lightweight CAPTCHA generator, relying only on rand and gif, can be compiled into wasm.
Based on [Ivan Tikhonov's captcha library](http://brokestream.com/captcha.html), rewritten with [c2rust](https://c2rust.com) code conversion.
The font file is from https://github.com/ITikhonov/captcha/blob/master/font.h and is ASCII artwork, make and then use unfont to generate the array.
Use the demo :
```rust
use anyhow::Result;
use std::{env::current_exe, fs::File};
use tiny_captcha::gif;
fn main() -> Result<()> {
for i in 1..=10 {
let exe = current_exe()?;
let gif_path = exe.parent().unwrap().join(format!("{}.gif", i));
let word = gif(&mut File::create(&gif_path)?);
println!("{} {}", word, gif_path.display());
}
Ok(())
}
```
The output is shown :
         
<b id=cn></b>
# tiny_captcha : rust 轻量级验证码生成器，可以编译成 wasm
[项目文档](https://docs.rs/tiny_captcha)
轻量级验证码生成器，仅依赖于 rand 和 gif ，可以编译成 wasm 。
在 [Ivan Tikhonov 的验证码库](http://brokestream.com/captcha.html) 的基础上，用 [c2rust](https://c2rust.com) 转代码后改写。
字体文件来自 https://github.com/ITikhonov/captcha/blob/master/font.h ，是 ASCII 艺术字 , make 之后用 unfont 生成数组。
使用演示 :
```rust
use anyhow::Result;
use std::{env::current_exe, fs::File};
use tiny_captcha::gif;
fn main() -> Result<()> {
for i in 1..=10 {
let exe = current_exe()?;
let gif_path = exe.parent().unwrap().join(format!("{}.gif", i));
let word = gif(&mut File::create(&gif_path)?);
println!("{} {}", word, gif_path.display());
}
Ok(())
}
```
输出展示 :
         
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