"Although optimized for scanning text, Perl can also deal with binary data..."
I am filtering the output of an app that generates text followed by PDF by using a regular expression substition that gets rid of the text. (The "app" is actually several components piped together - it is convenient to just let the text output stay as long as I can remove it at the end). This seems to work, but wondered if there might problems that I just haven't run into yet.
Your question is too vague to give a sensical answer. But if you all youre wondering about is whether using regular expressions on binary data may cause problems, then no, it wont. You might want to say use bytes and use the associated functions, possibly, but theres nothing inherently problematic about it.
Makeshifts last the longest.