mirror of
https://github.com/streetwriters/notesnook.git
synced 2026-09-02 12:14:48 +02:00
ab5a8d7edb
this commit also properly fixes search queries containing words less than 3 characters in length
119 lines
2.9 KiB
TypeScript
119 lines
2.9 KiB
TypeScript
/*
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This file is part of the Notesnook project (https://notesnook.com/)
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Copyright (C) 2023 Streetwriters (Private) Limited
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import { decodeHTML5 } from "entities";
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import { Parser } from "htmlparser2";
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export const parseHTML = (input: string) =>
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"DOMParser" in globalThis
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? new globalThis.DOMParser().parseFromString(
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wrapIntoHTMLDocument(input),
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"text/html"
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)
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: null;
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export function getDummyDocument() {
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const doc = parseHTML("<div></div>");
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return doc;
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}
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export function getInnerText(element: HTMLElement) {
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return decodeHTML5(element.textContent || element.innerText);
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}
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function wrapIntoHTMLDocument(input: string) {
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if (typeof input !== "string") return input;
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if (input.includes("<body>")) return input;
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return `<!doctype html><html lang="en"><head><title>Document Fragment</title></head><body>${input}</body></html>`;
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}
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export function extractHeadline(html: string, headlineCharacterLimit: number) {
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let text = "";
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const parser = new Parser(
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{
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ontext: (data) => {
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text += data;
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if (text.length > headlineCharacterLimit) {
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text = text.slice(0, headlineCharacterLimit);
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parser.pause();
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parser.end();
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}
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}
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},
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{
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lowerCaseTags: false,
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decodeEntities: true
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}
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);
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parser.end(html);
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return text;
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}
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type OnTagHandler = (
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name: string,
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attr: Record<string, string>,
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pos: { start: number; end: number }
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) => void;
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export class HTMLParser {
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private parser: Parser;
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constructor(options: { ontag?: OnTagHandler } = {}) {
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const { ontag } = options;
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this.parser = new Parser(
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{
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onopentag: (name, attr) =>
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ontag &&
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ontag(name, attr, {
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start: this.parser.startIndex,
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end: this.parser.endIndex
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})
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},
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{
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recognizeSelfClosing: true,
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xmlMode: false,
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decodeEntities: false,
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lowerCaseAttributeNames: false,
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lowerCaseTags: false,
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recognizeCDATA: false
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}
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);
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}
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parse(html: string) {
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this.parser.end(html);
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this.parser.reset();
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}
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}
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export function extractText(html: string) {
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let text = "";
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const parser = new Parser(
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{
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ontext: (data) => (text += data)
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},
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{
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lowerCaseTags: false
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}
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);
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parser.end(html);
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return text;
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}
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