Re: Prevent opening binary/other garbage files

[helxi via Digitalmars-d-learn]

On Saturday, 29 September 2018 at 16:01:18 UTC, Adam D. Ruppe 
wrote:
On Saturday, 29 September 2018 at 15:52:30 UTC, helxi wrote:
I'm writing a utility that checks for specific keyword(s) 
found in the files in a given directory recursively. What's 
the best strategy to avoid opening a bin file or some sort of 
garbage dump? Check encoding of the given file?

Simplest might be to read the first few bytes (like couple 
hundred probably) and if any of them are < 32 && != '\t' && != 
'\r' && != '\n' && != 0, there's a good chance it is a binary 
file.

Text files are frequently going to have tabs and newlines, but 
not so frequently other low bytes.

If you do find a bunch of 0's, but not the other values, you 
might have a utf-16 file.

Thanks. Would you say 
https://dlang.org/library/std/encoding/get_bom.html is useful in 
this context?