http://www.perlmonks.org?node_id=1215062


in reply to Re: perltidy and UTF-8 BOM
in thread perltidy and UTF-8 BOM

A BOM is frequently used to identify UTF-8 files even if the concept of byte order doesn't exist in UTF-8. Remember, the BOM is really just U+FEFF ZERO WIDTH NO-BREAK SPACE, an completely invisible character.