Function buildExpression$1

static/katex/katex.mjs:6902–6933

(expression, options)

 */

const buildExpression$1 = function buildExpression(expression, options) {
  const groups = [];
  let lastGroup;

  for (let i = 0; i < expression.length; i++) {
    const group = buildGroup$1(expression[i], options);

    if (group instanceof MathNode && lastGroup instanceof MathNode) {
      // Concatenate adjacent <mtext>s
      if (group.type === 'mtext' && lastGroup.type === 'mtext' && group.getAttribute('mathvariant') === lastGroup.getAttribute('mathvariant')) {
        lastGroup.children.push(...group.children);
        continue; // Concatenate adjacent <mn>s
      } else if (group.type === 'mn' && lastGroup.type === 'mn') {
        lastGroup.children.push(...group.children);
        continue; // Concatenate <mn>...</mn> followed by <mi>.</mi>
      } else if (group.type === 'mi' && group.children.length === 1 && lastGroup.type === 'mn') {
        const child = group.children[0];

        if (child instanceof TextNode && child.text === '.') {
          lastGroup.children.push(...group.children);
          continue;
        }
      }
    }

    groups.push(group);
    lastGroup = group;
  } // TODO(kevinb): combine \\not with mrels and mords


  return groups;
};
/**
 * Equivalent to buildExpression, but wraps the elements in an <mrow>
 * if there's more than one.  Returns a single node instead of an array.