(AutoIt) Convert a File's Character Encoding from UTF-8 to UFT-8-BOM

To add a utf-8 BOM to a file is just a matter of prepending these 3 bytes to the file: 0xEF 0xBB 0xBF.

This may be difficult in some programming languages, or it may be trivial in either. Therefore, the Chilkat solution you see here might be helpful, or in a language such as C++, the Chilkat solution isn't really necessary because it's easy to do yourself.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

; This example assumes the Chilkat API to have been previously unlocked.
; See Global Unlock Sample for sample code.

$oCharset = ObjCreate("Chilkat.Charset")

$oCharset.FromCharset = "utf-8"
$oCharset.ToCharset = "bom-utf-8"

Local $bSuccess = $oCharset.ConvertFile("qa_data/txt/helloWorld.txt","qa_output/helloWorldBom.txt")
If ($bSuccess <> True) Then
    ConsoleWrite($oCharset.LastErrorText & @CRLF)
    Exit
EndIf

ConsoleWrite("Success." & @CRLF)