defuddle
Version:
Extract article content and metadata from web pages.
59 lines (58 loc) • 2.35 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.mathRules = exports.createCleanMathEl = void 0;
const math_base_1 = require("./math.base");
const createCleanMathEl = (doc, mathData, latex, isBlock) => {
const cleanMathEl = doc.createElement('math');
cleanMathEl.setAttribute('xmlns', 'http://www.w3.org/1998/Math/MathML');
cleanMathEl.setAttribute('display', isBlock ? 'block' : 'inline');
cleanMathEl.setAttribute('data-latex', latex || '');
// First try to use existing MathML content
if (mathData?.mathml) {
const tempDiv = doc.createElement('div');
tempDiv.innerHTML = mathData.mathml;
const mathContent = tempDiv.querySelector('math');
if (mathContent) {
cleanMathEl.innerHTML = mathContent.innerHTML;
}
}
// If no MathML content but we have LaTeX, store it as text content
else if (latex) {
cleanMathEl.textContent = latex;
}
return cleanMathEl;
};
exports.createCleanMathEl = createCleanMathEl;
function hasHTMLElementProps(el) {
return 'classList' in el && 'getAttribute' in el && 'querySelector' in el;
}
// Find math elements
exports.mathRules = [
{
selector: math_base_1.mathSelectors,
element: 'math',
transform: (el, doc) => {
if (!hasHTMLElementProps(el))
return el;
const mathData = (0, math_base_1.getMathMLFromElement)(el);
const latex = (0, math_base_1.getBasicLatexFromElement)(el);
const isBlock = (0, math_base_1.isBlockDisplay)(el);
const cleanMathEl = (0, exports.createCleanMathEl)(doc, mathData, latex, isBlock);
// Clean up any associated math scripts after we've extracted their content
if (el.parentElement) {
// Remove all math-related scripts and previews
const mathElements = el.parentElement.querySelectorAll(`
/* MathJax scripts and previews */
script[type^="math/"],
.MathJax_Preview,
/* External math library scripts */
script[type="text/javascript"][src*="mathjax"],
script[type="text/javascript"][src*="katex"]
`);
mathElements.forEach(el => el.remove());
}
return cleanMathEl;
}
}
];
//# sourceMappingURL=math.core.js.map