' *==============================================================================*
' * CMD 命令行编码转换工具包括GB2312,UTF-8,Unicode,BIG5...支持拖拽、文件另保存为 *
' * CodeChange.vbs BY: yongfa365
' * GB2Ue.vbs BY: fastslz
' *==============================================================================*
aCode = "GB2312"
bCode = "Unicode"
Show = "本脚本仅支持"aCode"到"bCode"的转换，请拖拽单个要转换的文件到此文件上！ "
Usage1 = "语法１：GB2Ue.vbs [驱动器][目录][文件名] （直接替换原文件模式）"
Usage2 = "语法２：GB2Ue.vbs [驱动器][目录][文件名] [目标驱动器][目录][新名称] /Ｙ"
Usage3 = " 如果目标新文件已存在，使用/Ｙ参数后将直接替换而不提示是否改写！ "
Usage4 = "命令行编码转换工具 BY: fastslz"

Set objArgs=WScript.Arguments
Set fso=CreateObject("Scripting.FileSystemObject")
if objArgs.Count=0 Then
MsgBox Show vbCrLfvbCrLf Usage1 vbCrLf Usage2 vbCrLf Usage3, vbInformation, Usage4
Wscript.Quit
end if
if not objArgs.Count 3 Then
Options="/y"
ignoring = StrComp(objArgs(2), Options, vbTextCompare)
if ignoring = 0 Then
Sourcefile=objArgs(0)
Getfile=objArgs(1)
else
MsgBox "文件数量或参数太多，拖拽批量处理请用 ANSI2Unicode.vbs ", vbInformation, "程序意外终止"
Wscript.Quit
end if
else
if not objArgs.Count 2 Then
Sourcefile=objArgs(0)
Getfile=objArgs(1)
if fso.FileExists(objArgs(1)) then
Choice = MsgBox ("待处理文件“"+Sourcefile+"” ==> 目标文件“"+Getfile+"” "vbCrLf"目标文件已存在，是否改写现有文件？“"+objArgs(1)+"” ",vbQuestion+vbYesNo,"是否改写")
if Choice = vbYes Then
Getfile=objArgs(1)
else
Wscript.Quit
end if
end if
else
Sourcefile=objArgs(0)
Getfile=objArgs(0)
end if
end if

Call CheckCode (Sourcefile)
Call WriteToFile(Getfile, ReadFile(Sourcefile, aCode), bCode)
Wscript.Quit

Function ReadFile (Sourcefile, CharSet)
Dim Str
Set stm = CreateObject("Adodb.Stream")
stm.Type = 2
stm.mode = 3
stm.charset = CharSet
stm.Open
stm.loadfromfile Sourcefile
Str = stm.readtext
stm.Close
Set stm = Nothing
ReadFile = Str
End Function

Function WriteToFile (Getfile, Str, CharSet)
Set stm = CreateObject("Adodb.Stream")
stm.Type = 2
stm.mode = 3
stm.charset = CharSet
stm.Open
stm.WriteText Str
stm.SaveToFile Getfile,2
stm.flush
stm.Close
Set stm = Nothing
End Function

Function CheckCode (Sourcefile)
Dim slz
set slz = CreateObject("Adodb.Stream")
slz.Type = 1
slz.Mode = 3
slz.Open
slz.Position = 0
slz.Loadfromfile Sourcefile
Bin=slz.read(2)
if AscB(MidB(Bin,1,1))=HEF and AscB(MidB(Bin,2,1))=HBB Then
Codes="UTF-8"
elseif AscB(MidB(Bin,1,1))=HFF and AscB(MidB(Bin,2,1))=HFE Then
Codes="Unicode"
else
Codes="GB2312"
end if
if not aCode = Codes Then
MsgBox "待处理文件 “"Sourcefile"”"vbCrLf"该文件原始编码不是"aCode"，本脚本仅支持"aCode"到"bCode"的转换！ ",vbInformation,"错误终止"
WScript.Quit
end if
slz.Close
set slz = Nothing
End Function