INNER CODE UNIT · TypeScript

decodeHtmlEntities

RyanYipeng/SyncCaster · apps/extension/src/content-scripts/index.ts:459

function decodeHtmlEntities(text: string): string {
  const textarea = document.createElement('textarea');
  textarea.innerHTML = text;
  return textarea.value;
}

function replaceFormulasWithPlaceholders(root: HTMLElement, formulaMap: Map<string, { tex: string; isDisplay: boolean }>): void {
  const doc = root.ownerDocument || document;
  const DS = String.fromCharCode(36);
  
  root.querySelectorAll('[data-formula-id]').forEach((node) => {
    const id = node.getAttribute('data-formula-id');
    if (!id) return;
    const formula = formulaMap.get(id);
    if (!formula) return;
    
    const wrapper = doc.createElement('span');
    wrapper.setAttribute('data-sync-math', 'true');

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