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/*
* parsing/rule/impls/block/blocks/target.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 crate::id_prefix::isolate_ids;
use std::borrow::Cow;
pub const BLOCK_TARGET: BlockRule = BlockRule {
name: "block-target",
accepts_names: &["target", "anchortarget"],
accepts_star: false,
accepts_score: false,
accepts_newlines: true,
parse_fn,
};
fn parse_fn<'r, 't>(
parser: &mut Parser<'r, 't>,
name: &'t str,
flag_star: bool,
flag_score: bool,
in_head: bool,
) -> ParseResult<'r, 't, Elements<'t>> {
debug!("Parsing target block (name '{name}', in-head {in_head})");
assert!(!flag_star, "Target doesn't allow star flag");
assert!(!flag_score, "Target doesn't allow score flag");
assert_block_name(&BLOCK_TARGET, name);
let name =
parser.get_head_value(&BLOCK_TARGET, in_head, |parser, value| match value {
Some(name) => Ok(name.trim()),
None => Err(parser.make_err(ParseErrorKind::BlockMissingArguments)),
})?;
// Handle invalid anchor names
if name.is_empty() || name.contains(' ') {
return Err(parser.make_err(ParseErrorKind::BlockMissingArguments));
}
// Isolate ID if requested
let name = if parser.settings().isolate_user_ids {
Cow::Owned(isolate_ids(name))
} else {
cow!(name)
};
ok!(Element::AnchorName(name))
}