52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
/*
|
|
* Copyright (C) 2026 Fluxer Contributors
|
|
*
|
|
* This file is part of Fluxer.
|
|
*
|
|
* Fluxer 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.
|
|
*
|
|
* Fluxer 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 Fluxer. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
import type {ListFormatType} from '@fluxer/list_utils/src/ListFormattingTypes';
|
|
|
|
function getFallbackConjunction(type: ListFormatType): string {
|
|
if (type === 'disjunction') {
|
|
return 'or';
|
|
}
|
|
return 'and';
|
|
}
|
|
|
|
export function formatListWithFallback(items: ReadonlyArray<string>, type: ListFormatType): string {
|
|
if (items.length === 0) {
|
|
return '';
|
|
}
|
|
|
|
if (items.length === 1) {
|
|
return items[0] ?? '';
|
|
}
|
|
|
|
if (type === 'unit') {
|
|
return items.join(', ');
|
|
}
|
|
|
|
const conjunction = getFallbackConjunction(type);
|
|
|
|
if (items.length === 2) {
|
|
return `${items[0]} ${conjunction} ${items[1]}`;
|
|
}
|
|
|
|
const lastItem = items[items.length - 1];
|
|
const leadingItems = items.slice(0, -1).join(', ');
|
|
return `${leadingItems}, ${conjunction} ${lastItem}`;
|
|
}
|