aex 0.1.6

A web server for rust.
Documentation 
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use std::fmt;

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum HttpVersion {
    Http10,
    Http11,
    Http20,
}

impl HttpVersion {
    /// 将 Enum 转换为静态字符串，用于写入 Socket
    pub fn as_str(&self) -> &'static str {
        match self {
            Self::Http10 => "HTTP/1.0",
            Self::Http11 => "HTTP/1.1",
            Self::Http20 => "HTTP/2.0",
        }
    }
    /// 从字符串解析为 HttpVersion 枚举
    /// 支持大小写不敏感匹配（虽然标准通常是大写）
    pub fn from_str(s: &str) -> Option<Self> {
        match s.to_ascii_uppercase().as_str() {
            "HTTP/1.0" => Some(Self::Http10),
            "HTTP/1.1" => Some(Self::Http11),
            "HTTP/2.0" | "HTTP/2" => Some(Self::Http20),
            _ => None,
        }
    }
}

impl fmt::Display for HttpVersion {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        write!(f, "{}", self.as_str())
    }
}