ass2srt.vbs(ass/ssa批量转换srt的脚本)_VBS

iPad中的OPlayer只支持srt格式的字幕，而动画一般使用的是ass/ssa格式的字幕，所以需要将ass/ssa批量转换srt。

Google了一下，在《ass2srt[ass/ssa批量转换srt]》中找到一个ass2srt.wsf脚本，内容如下：

				?

									<job id="ass2srt">

									  <script language="JScript">

									  cInput="unicode";  // You can find them from:

									  cOutput="utf-8";  // HKEY_CLASSES_ROOT\MIME\Database\Charset

									  function rrr(){

									    re = /Dialogue: [^,.]*[0-9]*,([1-9]?[0-9]*:[0-9]*:[0-9]*.[0-9]*),([1-9]?[0-9]*:[0-9]*:[0-9]*.[0-9]*),[^,.]*,[^,.]*,[0-9]*,[0-9]*,[0-9]*,[^,.]*,(.*)/gi;

									    rv = ss.match(re);

									    t1 = RegExp.$1;

									    t2 = RegExp.$2;

									    t3 = RegExp.$3;

									    rg = /\{[^}.]*(\\pos\([0-9]*,[0-9]*\))[^}.]*}/gi;

									    t3 = t3.replace(rg,"$1" + "}"); 

									    rg =/\{[^}.]*}/gi;

									    t3 = t3.replace(rg,"");

									    rg =/(\\pos\([0-9]*,[0-9]*\)})/gi;

									    t3 = t3.replace(rg,"{" + "$1"); 

									    }

									  </Script>

									  <script language="VBScript">

									  set ad=CreateObject("adodb.stream")

									  set af=CreateObject("adodb.stream")

									  set ass=CreateObject("adodb.stream")

									  ad.open

									  af.open

									  ass.open

									  ad.Charset=cInput

									  af.Charset=cOutput

									  ass.Charset=cOutput

									  Set objArgs = WScript.Arguments

									  For I = 0 to objArgs.Count - 1

									    ad.LoadFromFile(objArgs(I))

									    z=0

									    gg=left(objArgs(I),len(objArgs(I))-3)&"srt"

									    Do While ad.eos <> True

									      ss =ad.ReadText(-2)

									      if left(ss,8)="Dialogue" then 

									        ss=replace(ss,",,",",d,")

									        rrr

									        t3=replace(t3,"\n",vbcrlf)

									        t3=replace(t3,"\N",vbcrlf)

									        z=z+1

									        af.writetext z,1

									        af.writetext t1 & " --> " & t2,1

									        af.writetext t3 & vbcrlf & vbcrlf

									      else 

									        ass.writetext ss,1

									      end if

									    Loop

									    af.savetofile gg,2

									    ass.savetofile gg&".style",2

									  Next

									  if i=0 then 

									    msgbox "Please drag files to me!",,"Error!"

									  else

									    msgbox "Converted "&i&" file(s).",,"All Over!"

									  end if

									  </Script>

									</job>

Windows 脚本 (.wsf) 文件是一个包含可扩展标记语言(XML)代码的文本文档，它结合了若干功能，提高了脚本编程的灵活性。由于 Windows 脚本文件并不局限于特定的引擎，它们能够包含所有遵循 ActiveX(R)规范的脚本引擎的脚本。

上面的脚本文件同时包含了JScript和VBScript的代码。问题在于，有这个必要么？单纯用JScript或者VBScript都可以实现，为什么要混用不同的语言呢？JScript在代码中的作用仅仅是正则表达式而已，一个合理的推断是作者不会VBScript的正则表达式，或者嫌VBScript的正则表达式太麻烦。就算撇开语言混杂不说，上面代码的风格实在是不敢恭维。

下面是我写的ass2srt.vbs，也许比上面的代码好一点点罢。

				?

									Option Explicit

									Const Encoding = "unicode" 'assume unicode

									'Author: Demon

									'Website: http://demon.tw

									'Date: 2012/6/16

									Dim shell, folder, fso, ext, i, args

									Set shell = CreateObject("Shell.Application")

									Set fso = CreateObject("scripting.filesystemobject")

									Set args = WScript.Arguments

									If args.Count = 0 Then

									  Set folder = shell.BrowseForFolder(0, "请选择ASS字幕所在的文件夹", 1)

									  If folder Is Nothing Then WScript.Quit

									  For Each i In fso.GetFolder(folder.Self.Path).Files

									    ext = LCase(fso.GetExtensionName(i.Path))

									    If ext = "ass" Or ext = "ssa" Then

									      ASS2SRT i.Path, Encoding

									    End If

									  Next

									Else

									  For i = 0 To args.Count - 1

									    ASS2SRT args(i), Encoding

									  Next

									End If

									MsgBox CInt(i) & " file(s) Converted!", vbInformation

									Function ASS2SRT(path, charset)

									  Const adTypeText = 2

									  Const adReadLine = -2

									  Const adSaveCreateOverWrite = 2

									  Dim ass, srt, re, str, arr, s, e, t, i

									  Set ass = CreateObject("ADODB.Stream")

									  Set srt = CreateObject("ADODB.Stream")

									  Set re = New RegExp

									  re.Global = True

									  re.IgnoreCase = True

									  re.Pattern = "\{.*?\}"

									  ass.Type = adTypeText

									  ass.Charset = charset

									  ass.Open

									  ass.LoadFromFile path

									  srt.Type = adTypeText

									  srt.Charset = "utf-8"

									  srt.Open

									  i = 0

									  Do Until ass.EOS

									    str = ass.ReadText(adReadLine)

									    If Left(str, 8) = "Dialogue" Then

									      i = i + 1

									      arr = Split(str, ",", 10)

									      s = "0" & arr(1) & "0" 'Start time

									      e = "0" & arr(2) & "0" 'End time

									      t = arr(9) 'Text

									      s = Replace(s, ".", ",")

									      e = Replace(e, ".", ",")

									      t = re.Replace(t, "")

									      t = Replace(t, "\n", vbCrLf)

									      t = Replace(t, "\N", vbCrLf)

									      srt.WriteText i & vbCrLf

									      srt.WriteText s & " --> " & e & vbCrLf

									      srt.WriteText t & vbCrLf & vbCrLf

									    End If

									  Loop

									  path = Left(path, Len(path) - 3) & "srt"

									  srt.SaveToFile path, adSaveCreateOverWrite

									End Function