Function makeOrd

static/katex/katex.mjs:5426–5496

(group, options, type)

const makeOrd = function makeOrd(group, options, type) {
  const mode = group.mode;
  const text = group.text;
  const classes = ["mord"]; // Math mode or Old font (i.e. \rm)

  const isFont = mode === "math" || mode === "text" && options.font;
  const fontOrFamily = isFont ? options.font : options.fontFamily;

  if (text.charCodeAt(0) === 0xD835) {
    // surrogate pairs get special treatment
    const _wideCharacterFont = wideCharacterFont(text, mode),
          wideFontName = _wideCharacterFont[0],
          wideFontClass = _wideCharacterFont[1];

    return makeSymbol(text, wideFontName, mode, options, classes.concat(wideFontClass));
  } else if (fontOrFamily) {
    let fontName;
    let fontClasses;

    if (fontOrFamily === "boldsymbol" || fontOrFamily === "mathnormal") {
      const fontData = fontOrFamily === "boldsymbol" ? boldsymbol(text, mode, options, classes) : mathnormal(text, mode, options, classes);
      fontName = fontData.fontName;
      fontClasses = [fontData.fontClass];
    } else if (utils.contains(mathitLetters, text)) {
      fontName = "Main-Italic";
      fontClasses = ["mathit"];
    } else if (isFont) {
      fontName = fontMap[fontOrFamily].fontName;
      fontClasses = [fontOrFamily];
    } else {
      fontName = retrieveTextFontName(fontOrFamily, options.fontWeight, options.fontShape);
      fontClasses = [fontOrFamily, options.fontWeight, options.fontShape];
    }

    if (lookupSymbol(text, fontName, mode).metrics) {
      return makeSymbol(text, fontName, mode, options, classes.concat(fontClasses));
    } else if (ligatures.hasOwnProperty(text) && fontName.substr(0, 10) === "Typewriter") {
      // Deconstruct ligatures in monospace fonts (\texttt, \tt).
      const parts = [];

      for (let i = 0; i < text.length; i++) {
        parts.push(makeSymbol(text[i], fontName, mode, options, classes.concat(fontClasses)));
      }

      return makeFragment(parts);
    }
  } // Makes a symbol in the default font for mathords and textords.


  if (type === "mathord") {
    const fontLookup = mathdefault(text, mode, options, classes);
    return makeSymbol(text, fontLookup.fontName, mode, options, classes.concat([fontLookup.fontClass]));
  } else if (type === "textord") {
    const font = symbols[mode][text] && symbols[mode][text].font;

    if (font === "ams") {
      const fontName = retrieveTextFontName("amsrm", options.fontWeight, options.fontShape);
      return makeSymbol(text, fontName, mode, options, classes.concat("amsrm", options.fontWeight, options.fontShape));