function interpolate()

in packages/docusaurus-logger/src/index.ts [19:56]

• 38 lines of code
• 9 McCabe index (conditional complexity)

function interpolate(
  msgs: TemplateStringsArray,
  ...values: InterpolatableValue[]
): string {
  let res = '';
  values.forEach((value, idx) => {
    const flag = msgs[idx]!.match(/[a-z]+=$/);
    res += msgs[idx]!.replace(/[a-z]+=$/, '');
    const format = (() => {
      if (!flag) {
        return (a: string | number) => a;
      }
      switch (flag[0]) {
        case 'path=':
          return path;
        case 'url=':
          return url;
        case 'number=':
          return num;
        case 'name=':
          return name;
        case 'subdue=':
          return subdue;
        case 'code=':
          return code;
        default:
          throw new Error(
            'Bad Docusaurus logging message. This is likely an internal bug, please report it.',
          );
      }
    })();
    res += Array.isArray(value)
      ? `\n- ${value.map((v) => format(v)).join('\n- ')}`
      : format(value);
  });
  res += msgs.slice(-1)[0];
  return res;
}