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encoding/decoding base64

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rap2h 2017-05-19 14:24:02 +02:00
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45
src/encoding.md
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@ -6,6 +6,7 @@
| [Deserialize a TOML configuration file][ex-toml-config] | [![toml-badge]][toml] | [![cat-encoding-badge]][cat-encoding] |
| [Percent-encode a string][ex-percent-encode] | [![url-badge]][url] | [![cat-encoding-badge]][cat-encoding] |
| [Encode and decode hex][ex-hex-encode-decode] | [![data-encoding-badge]][data-encoding] | [![cat-encoding-badge]][cat-encoding] |
| [Encode and decode base64][ex-base64] | [![base64-badge]][base64] | [![cat-encoding-badge]][cat-encoding] |
[ex-json-value]: #ex-json-value
<a name="ex-json-value"></a>
@ -278,6 +279,48 @@ fn run() -> Result<()> {
quick_main!(run);
```
[ex-base64]: #ex-base64
<a name="ex-base64"></a>
## Encode and decode base64
[![base64-badge]][base64] [![cat-encoding-badge]][cat-encoding]
Byte slice is encoded into `base64` String with help of [`encode`]
and subsequently decoded with [`decode`].
[`decode`]: https://docs.rs/base64/*/base64/fn.decode.html
[`encode`]: https://docs.rs/base64/*/base64/fn.encode.html
```rust
#[macro_use]
extern crate error_chain;
extern crate base64;
use std::str;
use base64::{encode, decode};
error_chain! {
foreign_links {
Base64(base64::DecodeError);
Utf8Error(str::Utf8Error);
}
}
fn run() -> Result<()> {
let hello = b"hello rustaceans";
let encoded = encode(hello);
let decoded = decode(&encoded)?;
println!("origin: {}", str::from_utf8(hello)?);
println!("base64 encoded: {}", encoded);
println!("back to origin: {}", str::from_utf8(&decoded)?);
Ok(())
}
quick_main!(run);
```
<!-- Categories -->
[cat-encoding-badge]: https://img.shields.io/badge/-encoding-red.svg
@ -293,6 +336,8 @@ quick_main!(run);
[url]: https://docs.rs/url/
[data-encoding-badge]: https://img.shields.io/crates/v/data-encoding.svg?label=url
[data-encoding]: https://github.com/ia0/data-encoding
[base64-badge]: https://img.shields.io/crates/v/base64.svg?label=base64
[base64]: https://docs.rs/base64/
<!-- Reference -->

4
src/intro.md
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@ -36,6 +36,7 @@ community. It needs and welcomes help. For details see
| [Serialize and deserialize unstructured JSON][ex-json-value] | [![serde-json-badge]][serde-json] | [![cat-encoding-badge]][cat-encoding] |
| [Deserialize a TOML configuration file][ex-toml-config] | [![toml-badge]][toml] | [![cat-encoding-badge]][cat-encoding] |
| [Percent-encode a string][ex-percent-encode] | [![url-badge]][url] | [![cat-encoding-badge]][cat-encoding] |
| [Encode and decode base64][ex-base64] | [![base64-badge]][base64] | [![cat-encoding-badge]][cat-encoding] |
## [Concurrency](concurrency.html)
@ -148,6 +149,8 @@ Keep lines sorted.
[url]: https://docs.rs/url/
[regex]: https://docs.rs/regex/
[regex-badge]: https://img.shields.io/crates/v/regex.svg?label=regex
[base64-badge]: https://img.shields.io/crates/v/base64.svg?label=base64
[base64]: https://docs.rs/base64/
<!-- Examples -->
@ -181,3 +184,4 @@ Keep lines sorted.
[ex-url-parse]: net.html#ex-url-parse
[ex-url-rm-frag]: net.html#ex-url-rm-frag
[ex-parse-subprocess-output]: basics.html#ex-parse-subprocess-output
[ex-base64]: encoding.html#ex-base64