Wait there's a UTF-8 with BOM? Why do you need a byte order mark for utf-8? The stream "unit" is a byte. I thought only utf-16 and above had an optional BOM?
> "Many Windows programs (including Windows Notepad) add the bytes 0xEF, 0xBB, 0xBF at the start of any document saved as UTF-8. This is the UTF-8 encoding of the Unicode byte order mark (BOM), and is commonly referred to as a UTF-8 BOM, even though it is not relevant to byte order. A BOM can also appear if another encoding with a BOM is translated to UTF-8 without stripping it. Software that is not aware of multibyte encodings will display the BOM as three garbage characters at the start of the document, e.g. "" in software interpreting the document as ISO 8859-1 or Windows-1252 or "" if interpreted as code page 437, a default for certain older Windows console applications."
> "The Unicode Standard neither requires nor recommends the use of the BOM for UTF-8, but warns that it may be encountered at the start of a file as a transcoding artifact. The presence of the UTF-8 BOM may cause problems with existing software that can handle UTF-8..."