egirlskey/packages/backend/src/core/activitypub/models/tag.ts

26 lines
770 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { toArray } from '@/misc/prelude/array.js';
import { isNotNull } from '@/misc/is-not-null.js';
import { isHashtag } from '../type.js';
import type { IObject, IApHashtag } from '../type.js';
export function extractApHashtags(tags: IObject | IObject[] | null | undefined): string[] {
if (tags == null) return [];
const hashtags = extractApHashtagObjects(tags);
return hashtags.map(tag => {
const m = tag.name.match(/^#(.+)/);
return m ? m[1] : null;
}).filter(isNotNull);
}
export function extractApHashtagObjects(tags: IObject | IObject[] | null | undefined): IApHashtag[] {
if (tags == null) return [];
return toArray(tags).filter(isHashtag);
}