xref: /aosp_15_r20/frameworks/minikin/rust/minikin.rs (revision 834a2baab5fdfc28e9a428ee87c7ea8f6a06a53d)
1 /*
2  * Copyright 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 //! The rust component of libminikin
18 
19 mod hyphenator;
20 
21 pub use hyphenator::Hyphenator;
22 
23 #[allow(clippy::needless_maybe_sized)]
24 #[cxx::bridge(namespace = "minikin::rust")]
25 mod ffi {
26     #[namespace = "minikin::rust"]
27     unsafe extern "C++" {
28         include!("ffi/IcuBridge.h");
getScript(cp: u32) -> u829         fn getScript(cp: u32) -> u8;
getJoiningType(cp: u32) -> u830         fn getJoiningType(cp: u32) -> u8;
31     }
32     #[namespace = "minikin::rust"]
33     extern "Rust" {
34         type Hyphenator;
load_hyphenator( data: &'static [u8], min_prefix: u32, min_suffix: u32, locale: String, ) -> Box<Hyphenator>35         fn load_hyphenator(
36             data: &'static [u8],
37             min_prefix: u32,
38             min_suffix: u32,
39             locale: String,
40         ) -> Box<Hyphenator>;
hyphenate(hyphenator: &Hyphenator, word: &[u16], out: &mut [u8])41         fn hyphenate(hyphenator: &Hyphenator, word: &[u16], out: &mut [u8]);
42     }
43 }
44 
load_hyphenator( data: &'static [u8], min_prefix: u32, min_suffix: u32, locale: String, ) -> Box<Hyphenator>45 fn load_hyphenator(
46     data: &'static [u8],
47     min_prefix: u32,
48     min_suffix: u32,
49     locale: String,
50 ) -> Box<Hyphenator> {
51     Box::new(Hyphenator::new(data, min_prefix, min_suffix, &locale))
52 }
53 
hyphenate(hyphenator: &Hyphenator, word: &[u16], out: &mut [u8])54 fn hyphenate(hyphenator: &Hyphenator, word: &[u16], out: &mut [u8]) {
55     hyphenator.hyphenate(word, out);
56 }
57