# iri-string
[](https://crates.io/crates/iri-string)
[](https://docs.rs/iri-string)

String types for [IRI](https://tools.ietf.org/html/rfc3987)s (Internationalized Resource
Identifiers) and [URI](https://tools.ietf.org/html/rfc3986)s (Uniform Resource Identifiers).
See the [documentation](https://docs.rs/iri-string) for details.
## Features
* `no_std` support.
* String types (both owned and borrowed) for IRIs.
* IRI reference resolution algorithm.
* IRI normalization algorithm.
### Feature flags
#### Direct
* `alloc` (enabled by default)
+ Enables types and functions which require memory allocation.
+ Requires `std` or `alloc` crate available.
* `std` (enabled by default)
+ Enables all `std` features (such as memory allocations and `std::error::Error` trait).
+ Requires `std` crate available.
+ This automatically enables `alloc` feature.
#### memchr
* `memchr`
+ Enable optimization for internal parsers, using [`memchr`] crate.
* `memchr-std`
+ Enable `std` feature for `memchr`.
+ This may make the parsing even faster. For detail, see README of `memchr` crate.
[`memchr`]: https://crates.io/crates/memchr
#### serde
* `serde`
+ Implements `Serialize` and `Deserialize` traits for string types.
* `serde-alloc`
+ Enables deriving serialization and deserialization impls which requires heap memory allocation.
+ If you enable `alloc` and `serde` features at the same time, you should also enable `serde-alloc` feature.
+ This automatically enables `alloc` feature.
* `serde-std`
+ Enables deriving serialization and deserialization impls which requires std stuff.
+ If you enable `std` and `serde` features at the same time, you should also enable `serde-std` feature.
+ This automatically enables `std` feature.
## CI
CI must pass on `develop` and `master` branches.
No automated online CI is set up (since they consumes credit too fast), so run
`cargo make manual-ci-all` locally before committing to these branches.
On other branches, tests and some lints (such as `dead_code`) are allowed to
fail, but all commits must be successfully compilable and must be formatted.
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE.txt](LICENSE-APACHE.txt) or
<https://www.apache.org/licenses/LICENSE-2.0>)
* MIT license ([LICENSE-MIT.txt](LICENSE-MIT.txt) or
<https://opensource.org/licenses/MIT>)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.