如何根据分隔符将向量拆分为切片向量？

Question

如果我有一个向量，比如

let mut bytes = vec![0x01, 0x02, 0x03, 0x40, 0x04, 0x05, 0x40, 0x06, 0x40];

我想用0x40 分隔符分隔向量。有没有一种干净的方式来实现这个功能？

预期输出： [[0x01, 0x02, 0x03], [0x04, 0x05], [0x06]]

Answer 1

使用slice::split:

fn main() {
    let bytes = [0x01, 0x02, 0x03, 0x40, 0x04, 0x05, 0x40, 0x06, 0x40];
    let pieces: Vec<_> = bytes
        .split(|&e| e == 0x40)
        .filter(|v| !v.is_empty())
        .collect();
    println!("{:?}", pieces)
}

另见：

• How can slices be split using another slice as a delimiter?
• In Rust, what's the idiomatic way to split a &str into an iterator of &strs of one character each?