blob: e5b3c3cf49ce8cf2a74f26f606f67ae1ec5606ab (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// This file is part of Chorus <https://github.com/Fuwn/chorus>.
// Copyright (C) 2022-2022 Fuwn <[email protected]>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 3.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Copyright (C) 2022-2022 Fuwn <[email protected]>
// SPDX-License-Identifier: GPL-3.0-only
use anyhow::anyhow;
use unicode_xid::UnicodeXID;
/// Check if a string is a valid Unicode XID identifier
pub fn is_unicode_xid(input: &str) -> anyhow::Result<()> {
let mut input_scroller = input.chars();
if !UnicodeXID::is_xid_start(input_scroller.next().unwrap()) {
return Err(anyhow!(
"identifier \"{}\" is not valid unicode xid identifier",
input
));
}
for character in input_scroller {
if !UnicodeXID::is_xid_continue(character) {
return Err(anyhow!(
"identifier \"{}\" is not valid unicode xid identifier",
input
));
}
}
Ok(())
}
|