Handle messages above the character limit

[hkwu]

There's currently nothing to handle messages which exceed the 2000 character limit.

Ideally the client should:

• split messages over the limit and send them as individual messages
• prefer splits by lines instead of characters to make the messages less awkward to read
• re-wrap code blocks that have been split over messages (preserving the syntax highlighting)

Sample implementation (taken from here):

const MESSAGE_CHAR_LIMIT = 2000;

const splitString = (string, prepend = '', append = '') => {
  if (string.length <= MESSAGE_CHAR_LIMIT) {
    return [string];
  }

  const splitIndex = string.lastIndexOf('\n', MESSAGE_CHAR_LIMIT - prepend.length - append.length);
  const sliceEnd = splitIndex > 0 ? splitIndex : MESSAGE_CHAR_LIMIT - prepend.length - append.length;
  const rest = splitString(string.slice(sliceEnd), prepend, append);

  return [`${string.slice(0, sliceEnd)}${append}`, `${prepend}${rest[0]}`, ...rest.slice(1)];
};

[macdja38]

Would be nice if this supported codeblocks as well. eg, when splitting a message that has codeblocks that suround the split point it would add codeblock start and endings at the split point.

[Gawdl3y]

Implemented in 7da00cf. Codeblocks are supported using the prepend and append options for the split message option.