How to detect random ASCII characters?

Question

ASCII

You need to load the data of a very large size from a file and process it. There is a possibility that the processed data will contain ASCII text that should not be there. Is there any algorithm to check that the data being processed does not contain text?

Answer 1

In the general case, your task is not solved, because in large random data, there is a non-zero probability of finding any row. It all depends on the data, its format and what kind of lines and how they get there.
To identify potential strings in binary text, you can look, for example, at the strings utility from GNU binutils