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
44
45
46
47
48
49
/*
* parsing/rule/impls/variable.rs
*
* ftml - Library to parse Wikidot text
* Copyright (C) 2019-2026 Wikijump Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
use super::prelude::*;
use regex::Regex;
use std::sync::LazyLock;
static VARIABLE_REGEX: LazyLock<Regex> =
LazyLock::new(|| Regex::new(r"\{\$(.+)\}").unwrap());
pub const RULE_VARIABLE: Rule = Rule {
name: "variable",
position: LineRequirement::Any,
try_consume_fn,
};
fn try_consume_fn<'r, 't>(
parser: &mut Parser<'r, 't>,
) -> ParseResult<'r, 't, Elements<'t>> {
debug!("Consuming token by placing variable contents");
let ExtractedToken { slice, .. } = parser.current();
let variable = VARIABLE_REGEX
.captures(slice)
.expect("Variable regex didn't match")
.get(1)
.expect("Capture group not found")
.as_str();
ok!(Element::Variable(cow!(variable)))
}