Function buildMathML

static/katex/katex.mjs:6969–6992

* Takes a full parse tree and settings and builds a MathML representation of * it. In particular, we put the elements from building the parse tree into a * tag so we can also include that TeX source as an annotation. * * Note that we actually return a domTree element with a ` `

(tree, texExpression, options)

 */

function buildMathML(tree, texExpression, options) {
  const expression = buildExpression$1(tree, options); // Wrap up the expression in an mrow so it is presented in the semantics
  // tag correctly, unless it's a single <mrow> or <mtable>.

  let wrapper;

  if (expression.length === 1 && expression[0] instanceof MathNode && utils.contains(["mrow", "mtable"], expression[0].type)) {
    wrapper = expression[0];
  } else {
    wrapper = new mathMLTree.MathNode("mrow", expression);
  } // Build a TeX annotation of the source


  const annotation = new mathMLTree.MathNode("annotation", [new mathMLTree.TextNode(texExpression)]);
  annotation.setAttribute("encoding", "application/x-tex");
  const semantics = new mathMLTree.MathNode("semantics", [wrapper, annotation]);
  const math = new mathMLTree.MathNode("math", [semantics]); // You can't style <math> nodes, so we wrap the node in a span.
  // NOTE: The span class is not typed to have <math> nodes as children, and
  // we don't want to make the children type more generic since the children
  // of span are expected to have more fields in `buildHtml` contexts.
  // $FlowFixMe

  return buildCommon.makeSpan(["katex-mathml"], [math]);
}

const optionsFromSettings = function optionsFromSettings(settings) {
  return new Options({