httpio 0.2.4

A transport-agnostic, async HTTP/1.1 client library for any runtime.
Documentation 
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use crate::enums::http_error::HttpError;
use core::fmt;
use std::str::FromStr;

use super::http_error::HttpErrorKind;

const COMPRESS: &str = "compressed";
pub const DEFLATE: &str = "deflate";
pub const GZIP: &str = "gzip";
pub const IDENTITY: &str = "identity";
const BROTLI: &str = "br";
const Z_STANDARD: &str = "zstd";

#[derive(Clone, PartialEq, Copy)]
pub enum ContentEncoding {
    Gzip,
    Compress,
    Deflate,
    Br,
    ZStandard,
}

impl FromStr for ContentEncoding {
    type Err = HttpError;

    fn from_str(s: &str) -> Result<Self, Self::Err> {
        let encoding = match s.trim() {
            BROTLI => Self::Br,
            COMPRESS => Self::Compress,
            DEFLATE => Self::Deflate,
            GZIP => Self::Gzip,
            Z_STANDARD => Self::ZStandard,
            _ => return Err(HttpErrorKind::UnsupportedContentEncoding.into()),
        };
        Ok(encoding)
    }
}

impl fmt::Display for ContentEncoding {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let encoding = match self {
            Self::Br => BROTLI,
            Self::Compress => COMPRESS,
            Self::Deflate => DEFLATE,
            Self::Gzip => GZIP,
            Self::ZStandard => Z_STANDARD,
        };
        write!(f, "{}", encoding)
    }
}

impl fmt::Debug for ContentEncoding {
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        fmt::Display::fmt(self, f)
    }
}