50 lines
1.2 KiB
TypeScript
50 lines
1.2 KiB
TypeScript
import TurndownService from "turndown";
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const turndownService = new TurndownService();
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function turndown(html: string | TurndownService.Node): string {
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let result = turndownService.turndown(html);
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result = result.replaceAll("[<p><br></p>]", "");
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if (result === "<p><br></p>") {
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result = "";
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}
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return result;
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}
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turndownService.addRule("shiftEnter", {
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filter: function (node) {
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return node.nodeName === "BR" && !!isShiftEnter(node);
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},
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replacement: function () {
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return "<br>";
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},
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});
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turndownService.addRule("enter", {
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filter: function (node) {
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return node.nodeName === "BR" && !isShiftEnter(node);
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},
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replacement: function () {
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return "<p><br></p>";
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},
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});
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function isShiftEnter(node: HTMLElement) {
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let currentNode: HTMLElement | null | ParentNode = node;
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while (currentNode != null && currentNode.nodeType !== 1) {
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currentNode = currentNode.parentElement || currentNode.parentNode;
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}
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return (
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currentNode &&
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currentNode.nodeType === 1 &&
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currentNode.parentElement &&
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currentNode.parentElement.childNodes.length !== 1 // normal enter is <p><br><p> (p has exactly one childNode)
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);
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}
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export default turndown;
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