I don't want to ruin your hopes but, while talking on messenger there are too many option for saying the same thing, I mean, It's not common to type the whole words, most of them get abbreviated, others, simply get replaced by "same-sound" ones, and others are un-recognizable, so , if building a translator which works well is almost impossible just because of the nature of language and sintax, imagine making one which accepts infinite different options for each word.
The idea is very good, and I hope that someday it will be available, but 'till then we must relay on proffesional translators for those works to be done. They work hard and well, but they cannot be at our houses translating everything we type. I know why this script is requested but sadly I'm affraid it can't be done.
wishing for the day,
Regards, Luis