1 /* Copyright 2016 The encode_unicode Developers
2  *
3  * Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
4  * http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
5  * http://opensource.org/licenses/MIT>, at your option. This file may not be
6  * copied, modified, or distributed except according to those terms.
7  */
8 
9 
10 /*!
11 Miscellaneous UTF-8 and UTF-16 types and methods.
12 
13 # Optional features:
14 * `#![no_std]`-mode: There are a few differences:
15   * `Error` doesn't exist, but `description()` is made available as an inherent impl.
16   * `Extend`/`FromIterator`-implementations for `String`/`Vec<u8>`/`Vec<u16>` are missing.
17   * There is no `io`, so `Utf8Iterator` and `Utf8CharSplitter` doesn't implement `Read`.
18 
19   This feature is enabled by setting `default-features=false` in `Cargo.toml`:
20   `encode_unicode = {version="0.3.4", default-features=false}`
21 * Integration with the [ascii](https://tomprogrammer.github.io/rust-ascii/ascii/index.html) crate:
22   Convert `Utf8Char` and `Utf16Char` to and from
23   [ascii::`AsciiChar`](https://tomprogrammer.github.io/rust-ascii/ascii/enum.AsciiChar.html).
24 
25 The minimum supported version of Rust is 1.15,
26 older versions might work now but can break with a minor update.
27 
28 [crates.io page](https://crates.io/crates/encode_unicode)
29 [github repository](https://github.com/tormol/encode_unicode)
30 
31 */
32 
33 #![warn(missing_docs)]
34 
35 #![cfg_attr(not(feature="std"), no_std)]
36 // either `cargo clippy` doesn't see theese, or I get a warning when I build.
37 #![cfg_attr(feature="clippy", feature(plugin))]
38 #![cfg_attr(feature="clippy", plugin(clippy))]
39 #![cfg_attr(feature="clippy", allow(derive_hash_xor_eq))]// tested
40 #![cfg_attr(feature="clippy", allow(len_without_is_empty))]// UtfxChar is never empty
41 #![cfg_attr(feature="clippy", allow(match_same_arms))]// looks better IMO
42 #![cfg_attr(feature="clippy", allow(needless_return))]// `foo.bar(); foo` looks unfinished
43 #![cfg_attr(feature="clippy", allow(redundant_closure))]// keep it explicit
44 #![cfg_attr(feature="clippy", allow(redundant_closure_call))]// not redundant in macros
45 #![cfg_attr(feature="clippy", allow(cast_lossless))]// too much noise (and too verbose)
46 // precedence: I prefer spaces to parentheses, but it's nice to recheck.
47 
48 mod errors;
49 mod traits;
50 mod utf8_char;
51 mod utf8_iterators;
52 mod utf16_char;
53 mod utf16_iterators;
54 mod decoding_iterators;
55 
56 pub use traits::{CharExt, U8UtfExt, U16UtfExt, StrExt, IterExt, SliceExt};
57 pub use utf8_char::Utf8Char;
58 pub use utf16_char::Utf16Char;
59 pub use utf8_iterators::{Utf8Iterator, iter_bytes};
60 pub use utf16_iterators::{Utf16Iterator, iter_units};
61 
62 pub mod error {// keeping the public interface in one file
63     //! Errors returned by various conversion methods in this crate.
64     pub use errors::{FromStrError, EmptyStrError};
65     pub use errors::{InvalidCodepoint, InvalidUtf8};
66     pub use errors::{InvalidUtf8FirstByte,InvalidUtf16FirstUnit};
67     pub use errors::{InvalidUtf8Slice,InvalidUtf16Slice};
68     pub use errors::{InvalidUtf8Array,InvalidUtf16Array,InvalidUtf16Tuple};
69     pub use errors::Utf16PairError;
70 }
71 
72 pub mod iterator {
73     //! Iterator types that you should rarely need to name
74     pub use utf8_iterators::{Utf8Iterator, Utf8CharSplitter, Utf8Chars, Utf8CharIndices};
75     pub use utf16_iterators::{Utf16Iterator, Utf16CharSplitter, Utf16Chars, Utf16CharIndices};
76     pub use decoding_iterators::{Utf8CharMerger, Utf8CharDecoder};
77     pub use decoding_iterators::{Utf16CharMerger, Utf16CharDecoder};
78 }
79