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use crate::error::{Error, Result};
use crate::impls::*;
#[cfg(not(feature = "std"))]
use alloc::{string::String, vec::Vec};
macro_rules! build_base_enum {
( $(#[$attr:meta] $code:expr => $base:ident,)* ) => {
/// List of types currently supported in the multibase spec.
///
/// Not all base types are supported by this library.
#[derive(PartialEq, Eq, Clone, Copy, Debug)]
pub enum Base {
$( #[$attr] $base, )*
}
impl Base {
/// Convert a number to the matching base algorithm, or `Error` if no algorithm is matching.
pub fn from_code(code: char) -> Result<Self> {
match code {
$( $code => Ok(Self::$base), )*
_ => Err(Error::UnknownBase(code)),
}
}
/// Get the code corresponding to the base algorithm.
pub fn code(&self) -> char {
match self {
$( Self::$base => $code, )*
}
}
/// Encode the given byte slice to base string.
pub fn encode<I: AsRef<[u8]>>(&self, input: I) -> String {
match self {
$( Self::$base => $base::encode(input), )*
}
}
/// Decode the base string.
pub fn decode<I: AsRef<str>>(&self, input: I) -> Result<Vec<u8>> {
match self {
$( Self::$base => $base::decode(input), )*
}
}
}
}
}
build_base_enum! {
/// 8-bit binary (encoder and decoder keeps data unmodified).
'\x00' => Identity,
/// Base2 (alphabet: 01).
'0' => Base2,
/// Base8 (alphabet: 01234567).
'7' => Base8,
/// Base10 (alphabet: 0123456789).
'9' => Base10,
/// Base16 lower hexadecimal (alphabet: 0123456789abcdef).
'f' => Base16Lower,
/// Base16 upper hexadecimal (alphabet: 0123456789ABCDEF).
'F' => Base16Upper,
/// Base32, rfc4648 no padding (alphabet: abcdefghijklmnopqrstuvwxyz234567).
'b' => Base32Lower,
/// Base32, rfc4648 no padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ234567).
'B' => Base32Upper,
/// Base32, rfc4648 with padding (alphabet: abcdefghijklmnopqrstuvwxyz234567).
'c' => Base32PadLower,
/// Base32, rfc4648 with padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZ234567).
'C' => Base32PadUpper,
/// Base32hex, rfc4648 no padding (alphabet: 0123456789abcdefghijklmnopqrstuv).
'v' => Base32HexLower,
/// Base32hex, rfc4648 no padding (alphabet: 0123456789ABCDEFGHIJKLMNOPQRSTUV).
'V' => Base32HexUpper,
/// Base32hex, rfc4648 with padding (alphabet: 0123456789abcdefghijklmnopqrstuv).
't' => Base32HexPadLower,
/// Base32hex, rfc4648 with padding (alphabet: 0123456789ABCDEFGHIJKLMNOPQRSTUV).
'T' => Base32HexPadUpper,
/// z-base-32 (used by Tahoe-LAFS) (alphabet: ybndrfg8ejkmcpqxot1uwisza345h769).
'h' => Base32Z,
/// Base36, [0-9a-z] no padding (alphabet: 0123456789abcdefghijklmnopqrstuvwxyz).
'k' => Base36Lower,
/// Base36, [0-9A-Z] no padding (alphabet: 0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ).
'K' => Base36Upper,
/// Base58 flicker (alphabet: 123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ).
'Z' => Base58Flickr,
/// Base58 bitcoin (alphabet: 123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz).
'z' => Base58Btc,
/// Base64, rfc4648 no padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/).
'm' => Base64,
/// Base64, rfc4648 with padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/).
'M' => Base64Pad,
/// Base64 url, rfc4648 no padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_).
'u' => Base64Url,
/// Base64 url, rfc4648 with padding (alphabet: ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_).
'U' => Base64UrlPad,
}