This type of update will be custom and not supported. I can think of one way that something like this could be done, if the problem is that the words are broken in between characters that need to be displayed together then maybe you can preserve the characters by looking for white space. If you can ensure that any whole values will be separated by white space then you can do a strpos to the last white space before the 23rd character. Here is a link to the strpos page on php, it has some useful info for this:
php.net/strpos