qwik-latex
Version:
Katex based LaTeX rendering for Qwik
45 lines (44 loc) • 1.62 kB
JavaScript
;
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const defaultCopyDelimiters = {
inline: [
"$",
"$"
],
display: [
"$$",
"$$"
]
};
function katexReplaceWithTex(fragment, copyDelimiters = defaultCopyDelimiters) {
const katexHtml = fragment.querySelectorAll(".katex-mathml + .katex-html");
for (let i = 0; i < katexHtml.length; i++) {
const element = katexHtml[i];
if (element.remove) {
element.remove();
} else if (element.parentNode) {
element.parentNode.removeChild(element);
}
}
const katexMathml = fragment.querySelectorAll(".katex-mathml");
for (let i = 0; i < katexMathml.length; i++) {
const element = katexMathml[i];
const texSource = element.querySelector("annotation");
if (texSource) {
if (element.replaceWith) {
element.replaceWith(texSource);
} else if (element.parentNode) {
element.parentNode.replaceChild(texSource, element);
}
texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1];
}
}
const displays = fragment.querySelectorAll(".katex-display annotation");
for (let i = 0; i < displays.length; i++) {
const element = displays[i];
element.innerHTML = copyDelimiters.display[0] + element.innerHTML.substr(copyDelimiters.inline[0].length, element.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1];
}
return fragment;
}
exports.defaultCopyDelimiters = defaultCopyDelimiters;
exports.katexReplaceWithTex = katexReplaceWithTex;