Function splitAtDelimiters

static/katex/contrib/auto-render.mjs:30–92

(startData, leftDelim, rightDelim, display)

};

const splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) {
  const finalData = [];

  for (let i = 0; i < startData.length; i++) {
    if (startData[i].type === "text") {
      const text = startData[i].data;
      let lookingForLeft = true;
      let currIndex = 0;
      let nextIndex;
      nextIndex = text.indexOf(leftDelim);

      if (nextIndex !== -1) {
        currIndex = nextIndex;
        finalData.push({
          type: "text",
          data: text.slice(0, currIndex)
        });
        lookingForLeft = false;
      }

      while (true) {
        if (lookingForLeft) {
          nextIndex = text.indexOf(leftDelim, currIndex);

          if (nextIndex === -1) {
            break;
          }

          finalData.push({
            type: "text",
            data: text.slice(currIndex, nextIndex)
          });
          currIndex = nextIndex;
        } else {
          nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);

          if (nextIndex === -1) {
            break;
          }

          finalData.push({
            type: "math",
            data: text.slice(currIndex + leftDelim.length, nextIndex),
            rawData: text.slice(currIndex, nextIndex + rightDelim.length),
            display: display
          });
          currIndex = nextIndex + rightDelim.length;
        }

        lookingForLeft = !lookingForLeft;
      }

      finalData.push({
        type: "text",
        data: text.slice(currIndex)
      });
    } else {
      finalData.push(startData[i]);