I need a way to check if characters in a string input are cjk, I've searched and I've only been able to detect if the characters are multibyte, however, I need to be able to tell Japanese, chinese or korean characters apart from other multibyte-encoded character.
The string encoding is utf8 and it'd be simpler to keep it that way, but I welcome any solution.
I've tried writing out the bytes and using information found here to determine the size and bit-content of the characters. perhaps if there was a continous range of digits for representing cjk chars, not sure it'd be that simple however.