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/*
* parsing/rule/impls/comment.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::*;
pub const RULE_COMMENT: Rule = Rule {
name: "comment",
position: LineRequirement::Any,
try_consume_fn,
};
fn try_consume_fn<'r, 't>(
parser: &mut Parser<'r, 't>,
) -> ParseResult<'r, 't, Elements<'t>> {
debug!("Consuming tokens until end of comment");
assert_step(parser, Token::LeftComment)?;
loop {
let ExtractedToken {
token,
span: _span,
slice: _slice,
} = parser.current();
trace!("Received token '{}' inside comment", token.name());
match token {
// Hit the end of the comment, return
Token::RightComment => {
trace!("Reached end of comment, returning");
parser.step()?;
return ok!(Elements::None);
}
// Hit the end of the input, abort
Token::InputEnd => {
trace!("Reached end of input, aborting");
return Err(parser.make_err(ParseErrorKind::EndOfInput));
}
// Consume any other token
_ => {
trace!("Token inside comment received. Discarding.");
parser.step()?;
}
}
}
}