rust_rcs_core/internet/headers/
supported.rs

1// Copyright 2023 宋昊文
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use crate::internet::header::Header;
16use crate::internet::syntax;
17
18pub trait Supported {
19    fn supports(&self, extension: &[u8]) -> bool;
20}
21
22impl<'a> Supported for Header {
23    fn supports(&self, extension: &[u8]) -> bool {
24        let mut iter = self.get_value().split(|c| *c == b',');
25        while let Some(slice) = iter.next() {
26            let slice = syntax::trim(slice);
27            if slice == extension {
28                return true;
29            }
30        }
31        false
32    }
33}