Please help to convert Unicode to UTF8

[lsakizada 0]

Does someone help me to understand why my script does not convert UNICODE to UTF-8?

I grab the code of the unicodetoutf8 function from the forum posts somewhere.

expandcollapse popup

if $CmdLine[0] <> 2 then 
    MsgBox(0,0,"Uses: U2UTF8 'Path to Source Unicode File' 'Path to Destination UTF-8 File' ")
    exit
EndIf
    
Dim $UnicodeFile    = $CmdLine[1]
Dim $UTF8FILE       = $CmdLine[2]   


$File1 = FileOpen($UnicodeFile, 4); 4 - raw read mode
$Unicode = FileRead($File1, FileGetSize($UnicodeFile))

consolewrite ($Unicode & @CRLF)
$UTF8String = Unicode2Utf8($Unicode)


consolewrite ($UTF8String & @CRLF)
FileClose ($File1)

$file = FileOpen($UTF8FILE,128+2)
If $file = -1 Then
    MsgBox(0, "Error", "Unable to open file.")
    Exit
EndIf
FileWrite($file, $UTF8String)
FileClose ($file)

Func Unicode2Utf8($UniString)
    
    If Not IsBinary($UniString) Then
        SetError(1)
        MsgBox(0,0,"not binary")
        Return $UniString
    EndIf

    Local $UniStringLen = StringLen($UniString)
    Local $BufferLen = $UniStringLen * 2
    Local $Input = DllStructCreate("byte[" & $BufferLen & "]")
    Local $Output = DllStructCreate("char[" & $BufferLen & "]")
    DllStructSetData($Input, 1, $UniString)
    Local $Return = DllCall("kernel32.dll", "int", "WideCharToMultiByte", _
        "int", 65001, _
        "int", 0 , _
        "ptr", DllStructGetPtr($Input), _
        "int", $UniStringLen / 2, _
        "ptr", DllStructGetPtr($Output), _
        "int", $BufferLen, _
        "int", 0, _
        "int", 0)   
    Local $Utf8String = DllStructGetData($Output, 1)
    $Output = 0
    $Input = 0
    Return $Utf8String
EndFunc

Edited August 7, 2007 by lsakizada

[Lazycat 8]

I think this because you operate with binary string, but try write it as UTF8. So changing flags for writing to 16+2 solve problem.

But if you use unicode OS (2k/XP/Vista) you don't need use Unicode2Utf8 at all, Autoit unicode build did the job, and your code can be just:

if $CmdLine[0] <> 2 then 
    MsgBox(0,0,"Uses: U2UTF8 'Path to Source Unicode File' 'Path to Destination UTF-8 File' ")
    exit
EndIf
    
Dim $UnicodeFile    = $CmdLine[1]
Dim $UTF8FILE         = $CmdLine[2]    

$File1 = FileOpen($UnicodeFile, 0); 
$Unicode = FileRead($File1, FileGetSize($UnicodeFile))
FileClose($File1)

$file = FileOpen($UTF8FILE, 128+2)
If $file = -1 Then
    MsgBox(0, "Error", "Unable to open file.")
    Exit
EndIf
FileWrite($file, $Unicode)
FileClose ($file)

[lsakizada 0]

I think this because you operate with binary string, but try write it as UTF8. So changing flags for writing to 16+2 solve problem.

But if you use unicode OS (2k/XP/Vista) you don't need use Unicode2Utf8 at all, Autoit unicode build did the job, and your code can be just:

if $CmdLine[0] <> 2 then 
    MsgBox(0,0,"Uses: U2UTF8 'Path to Source Unicode File' 'Path to Destination UTF-8 File' ")
    exit
EndIf
    
Dim $UnicodeFile    = $CmdLine[1]
Dim $UTF8FILE         = $CmdLine[2]    

$File1 = FileOpen($UnicodeFile, 0); 
$Unicode = FileRead($File1, FileGetSize($UnicodeFile))
FileClose($File1)

$file = FileOpen($UTF8FILE, 128+2)
If $file = -1 Then
    MsgBox(0, "Error", "Unable to open file.")
    Exit
EndIf
FileWrite($file, $Unicode)
FileClose ($file)

WOW!!! amazing solution. thank you very much LazyCAT!