用VBS写的VBSCRIPT代码格式化工具VbsBeautifier

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昨天在VBS吧看到一个精华帖《VBS代码格式化工具》，是用C++写的，区区VBS代码格式化，就不要劳C++大驾了吧，用VBS实现VBS代码格式化工具不是更自然么？

网上的VBS代码大部分都没有缩进，新手不知道要缩进，高手缩进了被某些个垃圾网站采集以后也就没有了缩进，还有以一些博客贴吧也会把缩进给吃掉。除了缩进之外，由于学VBS的大部分都是学批处理出身，代码风格还是跟写批处理一样难看。其实一般情况下用VbsEdit 5.2.4.0自带的代码格式化功能就行了，没有必要重复造轮子。只不过VbsEdit 5.2.4.0在格式化带有冒号的代码时不是很理想，加上我已经很久没有写过像样的VBS脚本了，所以还是决定造一下轮子。

2011年12月27日更新：在线VBScript代码格式化工具VbsBeautifier

因为代码比较长，所以贴在文章的最后，下面是VBS代码格式化工具的效果演示：

格式化前的VBS代码：

复制代码代码如下:

ON ERROR RESUME NEXT:Set fso = CreateObject("Scripting.FileSystemObject"):X=0:T=true:WhiLe T

Input=Inputbox("Filename Lowercase Batch Convertor"&vbcrlf&vbcrlf& _

"Please input the destination folder name. e.g. C:\Webmaster"&vbcrlf&vbcrlf& _

"Note: Do NOT add '\' in the end of folder name!","FLowercase Convertor","C:\")

iF Input="" then:Msgbox"Folder name is empty!",48,"Error!":T=true:else T=false:end If:wend

Msgbox"All files names of "&Input&" will be converted to lowercase now...",64,"Note"

fold(Input):Msgbox"Done! Total "&X&" file(s) were converted to lowercase.",64,"Done"

sub fold(Path):SET f=fso.GetFolder(Path):Set rf = fso.GetFolder(Path).files:Set fc = f.SubFolders

foR EACh fff in rf:lcf1=LCase(fso.GetAbsolutePathName(fff))

fso.MoveFile fff, lcf1:X=X + 1:next:for EacH f1 in fc:fold(f1)

Set file=fso.GetFolder(f1).files:fOR EACh ff iN file:lcf=LCase(fso.GetAbsolutePathName(ff))

fso.MoveFile ff,lcf:NEXT:NEXT:END sub

格式化后的VBS代码：

On Error Resume Next
Set fso = CreateObject("Scripting.FileSystemObject")
X = 0
T = True
While T
  Input = InputBox("Filename Lowercase Batch Convertor" & vbCrLf & vbCrLf & _
  "Please input the destination folder name. e.g. C:\Webmaster" & vbCrLf & vbCrLf & _
  "Note: Do NOT add '\' in the end of folder name!","FLowercase Convertor","C:\")
  If Input = "" Then
    MsgBox"Folder name is empty!",48,"Error!"
    T = True
  Else T = False
  End If
WEnd
MsgBox"All files names of " & Input & " will be converted to lowercase now...",64,"Note"
fold(Input)
MsgBox"Done! Total " & X & " file(s) were converted to lowercase.",64,"Done"
Sub fold(Path)
  Set f = fso.GetFolder(Path)
  Set rf = fso.GetFolder(Path).files
  Set fc = f.SubFolders
  For Each fff In rf
    lcf1 = LCase(fso.GetAbsolutePathName(fff))
    fso.MoveFile fff, lcf1
    X = X + 1
  Next
  For Each f1 In fc
    fold(f1)
    Set file = fso.GetFolder(f1).files
    For Each ff In file
      lcf = LCase(fso.GetAbsolutePathName(ff))
      fso.MoveFile ff,lcf
    Next
  Next
End Sub

VBS代码格式化工具的源码：

Option Explicit

If WScript.Arguments.Count = 0 Then
  MsgBox "请将要格式化的代码文件拖动到这个文件上", vbInformation, "使用方法"
  WScript.Quit
End If

'作者: Demon
'时间: 2011/12/24
'链接: http://demon.tw/my-work/vbs-beautifier.html
'描述: VBScript 代码格式化工具
'注意: 
'1. 错误的 VBScript 代码不能被正确地格式化
'2. 代码中不能含有%[comment]% %[quoted]%等模板标签, 有待改进
'3. 由2可知, 该工具不能格式化自身

Dim Beautifier, i
Set Beautifier = New VbsBeautifier

For Each i In WScript.Arguments
  Beautifier.BeautifyFile i
Next

MsgBox "代码格式化完成", vbInformation, "提示"


Class VbsBeautifier
  'VbsBeautifier类

  Private quoted, comments, code, indents
  Private ReservedWord, BuiltInFunction, BuiltInConstants, VersionInfo

  '公共方法
  '格式化字符串
  Public Function Beautify(ByVal input)
    code = input
    code = Replace(code, vbCrLf, vbLf)

    Call GetQuoted()
    Call GetComments()
    Call GetErrorHandling()

    Call ColonToNewLine()
    Call FixSpaces()
    Call ReplaceReservedWord()
    Call InsertIndent()
    Call FixIndent()

    Call PutErrorHandling()
    Call PutComments()
    Call PutQuoted()

    code = Replace(code, vbLf, vbCrLf)
    code = VersionInfo & code
    Beautify = code
  End Function

  '公共方法
  '格式化文件
  Public Function BeautifyFile(ByVal path)
    Dim fso
    Set fso = CreateObject("scripting.filesystemobject")
    BeautifyFile = Beautify(fso.OpenTextFile(path).ReadAll)
    '备份文件以免出错
    fso.GetFile(path).Copy path & ".bak", True
    fso.OpenTextFile(path, 2, True).Write(BeautifyFile)
  End Function

  Private Sub Class_Initialize()
    '保留字
    ReservedWord = "And As Boolean ByRef Byte ByVal Call Case Class Const Currency Debug Dim Do Double Each Else ElseIf Empty End EndIf Enum Eqv Event Exit Explicit False For Function Get Goto If Imp Implements In Integer Is Let Like Long Loop LSet Me Mod New Next Not Nothing Null On Option Optional Or ParamArray Preserve Private Property Public RaiseEvent ReDim Rem Resume RSet Select Set Shared Single Static Stop Sub Then To True Type TypeOf Until Variant WEnd While With Xor"
    '内置函数
    BuiltInFunction = "Abs Array Asc Atn CBool CByte CCur CDate CDbl CInt CLng CSng CStr Chr Cos CreateObject Date DateAdd DateDiff DatePart DateSerial DateValue Day Escape Eval Exp Filter Fix FormatCurrency FormatDateTime FormatNumber FormatPercent GetLocale GetObject GetRef Hex Hour InStr InStrRev InputBox Int IsArray IsDate IsEmpty IsNull IsNumeric IsObject Join LBound LCase LTrim Left Len LoadPicture Log Mid Minute Month MonthName MsgBox Now Oct Randomize RGB RTrim Replace Right Rnd Round ScriptEngine ScriptEngineBuildVersion ScriptEngineMajorVersion ScriptEngineMinorVersion Second SetLocale Sgn Sin Space Split Sqr StrComp StrReverse String Tan Time TimeSerial TimeValue Timer Trim TypeName UBound UCase Unescape VarType Weekday WeekdayName Year"
    '内置常量
    BuiltInConstants = "vbBlack vbRed vbGreen vbYellow vbBlue vbMagenta vbCyan vbWhite vbBinaryCompare vbTextCompare vbSunday vbMonday vbTuesday vbWednesday vbThursday vbFriday vbSaturday vbUseSystemDayOfWeek vbFirstJan1 vbFirstFourDays vbFirstFullWeek vbGeneralDate vbLongDate vbShortDate vbLongTime vbShortTime vbObjectError vbOKOnly vbOKCancel vbAbortRetryIgnore vbYesNoCancel vbYesNo vbRetryCancel vbCritical vbQuestion vbExclamation vbInformation vbDefaultButton1 vbDefaultButton2 vbDefaultButton3 vbDefaultButton4 vbApplicationModal vbSystemModal vbOK vbCancel vbAbort vbRetry vbIgnore vbYes vbNo vbCr vbCrLf vbFormFeed vbLf vbNewLine vbNullChar vbNullString vbTab vbVerticalTab vbUseDefault vbTrue vbFalse vbEmpty vbNull vbInteger vbLong vbSingle vbDouble vbCurrency vbDate vbString vbObject vbError vbBoolean vbVariant vbDataObject vbDecimal vbByte vbArray WScript"
    '版本信息
    VersionInfo = Chr(39) & Chr(86) & Chr(98) & Chr(115) & Chr(66) & Chr(101) & Chr(97) & Chr(117) & Chr(116) & Chr(105) & Chr(102) & Chr(105) & Chr(101) & Chr(114) & Chr(32) & Chr(49) & Chr(46) & Chr(48) & Chr(32) & Chr(98) & Chr(121) & Chr(32) & Chr(68) & Chr(101) & Chr(109) & Chr(111) & Chr(110) & Chr(13) & Chr(10) & Chr(39) & Chr(104) & Chr(116) & Chr(116) & Chr(112) & Chr(58) & Chr(47) & Chr(47) & Chr(100) & Chr(101) & Chr(109) & Chr(111) & Chr(110) & Chr(46) & Chr(116) & Chr(119) & Chr(13) & Chr(10)
    '缩进大小
    Set indents = CreateObject("scripting.dictionary")
    indents("if") = 1
    indents("sub") = 1
    indents("function") = 1
    indents("property") = 1
    indents("for") = 1
    indents("while") = 1
    indents("do") = 1
    indents("for") = 1
    indents("select") = 1
    indents("with") = 1
    indents("class") = 1
    indents("end") = -1
    indents("next") = -1
    indents("loop") = -1
    indents("wend") = -1
  End Sub

  Private Sub Class_Terminate()
    '什么也不做
  End Sub

  '将字符串替换成%[quoted]%
  Private Sub GetQuoted()
    Dim re
    Set re = New RegExp
    re.Global = True
    re.Pattern = """.*?"""
    Set quoted = re.Execute(code)
    code = re.Replace(code, "%[quoted]%")
  End Sub

  '将%[quoted]%替换回字符串
  Private Sub PutQuoted()
    Dim i
    For Each i In quoted
      code = Replace(code, "%[quoted]%", i, 1, 1)
    Next
  End Sub

  '将注释替换成%[comment]%
  Private Sub GetComments()
    Dim re
    Set re = New RegExp
    re.Global = True
    re.Pattern = "'.*"
    Set comments = re.Execute(code)
    code = re.Replace(code, "%[comment]%")
  End Sub

  '将%[comment]%替换回注释
  Private Sub PutComments()
    Dim i
    For Each i In comments
      code = Replace(code, "%[comment]%", i, 1, 1)
    Next
  End Sub

  '将冒号替换成换行
  Private Sub ColonToNewLine
    code = Replace(code, ":", vbLf)
  End Sub

  '将错误处理语句替换成模板标签
  Private Sub GetErrorHandling()
    Dim re
    Set re = New RegExp
    re.Global = True
    re.IgnoreCase = True
    re.Pattern = "on\s+error\s+resume\s+next"
    code = re.Replace(code, "%[resumenext]%")
    re.Pattern = "on\s+error\s+goto\s+0"
    code = re.Replace(code, "%[gotozero]%")
  End Sub

  '将模板标签替换回错误处理语句
  Private Sub PutErrorHandling()
    code = Replace(code, "%[resumenext]%", "On Error Resume Next")
    code = Replace(code, "%[gotozero]%", "On Error GoTo 0")
  End Sub

  '格式化空格
  Private Sub FixSpaces()
    Dim re
    Set re = New RegExp
    re.Global = True
    re.IgnoreCase = True
    re.MultiLine = True
    '去掉每行前后的空格
    re.Pattern = "^[ \t]*(.*?)[ \t]*$"
    code = re.Replace(code, "$1")
    '在操作符前后添加空格
    re.Pattern = "[ \t]*(=|<|>|-|\+|&|\*|/|\^|\\)[ \t]*"
    code = re.Replace(code, " $1 ")
    '去掉<>中间的空格
    re.Pattern = "[ \t]*<\s*>[ \t]*"
    code = re.Replace(code, " <> ")
    '去掉<=中间的空格
    re.Pattern = "[ \t]*<\s*=[ \t]*"
    code = re.Replace(code, " <= ")
    '去掉>=中间的空格
    re.Pattern = "[ \t]*>\s*=[ \t]*"
    code = re.Replace(code, " >= ")
    '在行尾的 _ 前面加上空格
    re.Pattern = "[ \t]*_[ \t]*$"
    code = re.Replace(code, " _")
    '去掉Do While中间多余的空格
    re.Pattern = "[ \t]*Do\s*While[ \t]*"
    code = re.Replace(code, "Do While")
    '去掉Do Until中间多余的空格
    re.Pattern = "[ \t]*Do\s*Until[ \t]*"
    code = re.Replace(code, "Do Until")
    '去掉End Sub中间多余的空格
    re.Pattern = "[ \t]*End\s*Sub[ \t]*"
    code = re.Replace(code, "End Sub")
    '去掉End Function中间多余的空格
    re.Pattern = "[ \t]*End\s*Function[ \t]*"
    code = re.Replace(code, "End Function")
    '去掉End If中间多余的空格
    re.Pattern = "[ \t]*End\s*If[ \t]*"
    code = re.Replace(code, "End If")
    '去掉End With中间多余的空格
    re.Pattern = "[ \t]*End\s*With[ \t]*"
    code = re.Replace(code, "End With")
    '去掉End Select中间多余的空格
    re.Pattern = "[ \t]*End\s*Select[ \t]*"
    code = re.Replace(code, "End Select")
    '去掉Select Case中间多余的空格
    re.Pattern = "[ \t]*Select\s*Case[ \t]*"
    code = re.Replace(code, "Select Case ")
  End Sub

  '将保留字 内置函数 内置常量 替换成首字母大写
  Private Sub ReplaceReservedWord()
    Dim re, words, word
    Set re = New RegExp
    re.Global = True
    re.IgnoreCase = True
    re.MultiLine = True

    words = Split(ReservedWord, " ")
    For Each word In words
      re.Pattern = "(\b)" & word & "(\b)"
      code = re.Replace(code, "$1" & word & "$2")
    Next

    words = Split(BuiltInFunction, " ")
    For Each word In words
      re.Pattern = "(\b)" & word & "(\b)"
      code = re.Replace(code, "$1" & word & "$2")
    Next

    words = Split(BuiltInConstants, " ")
    For Each word In words
      re.Pattern = "(\b)" & word & "(\b)"
      code = re.Replace(code, "$1" & word & "$2")
    Next
  End Sub

  '插入缩进
  Private Sub InsertIndent()
    Dim lines, line, i, n, t, delta
    lines = Split(code, vbLf)
    n = UBound(lines)
    For i = 0 To n
      line = lines(i)
      SingleLineIfThen line
      t = delta
      delta = delta + CountDelta(line)

      If t <= delta Then
        lines(i) = String(t, vbTab) & lines(i)
      Else
        lines(i) = String(delta, vbTab) & lines(i)
      End If
    Next
    code = Join(lines, vbLf)
  End Sub

  '调整错误的缩进
  Private Sub FixIndent()
    Dim lines, i, n, re
    Set re = New RegExp
    re.IgnoreCase = True
    lines = Split(code, vbLf)
    n = UBound(lines)
    For i = 0 To n
      re.Pattern = "^\t*else"
      If re.Test(lines(i)) Then
        lines(i) = Replace(lines(i), vbTab, "", 1, 1)
      End If
    Next
    code = Join(lines, vbLf)
  End Sub

  '计算缩进大小
  Private Function CountDelta(ByRef line)
    Dim i, re, delta
    Set re = New RegExp
    re.Global = True
    re.IgnoreCase = True
    For Each i In indents.Keys
      re.Pattern = "^\s*\b" & i & "\b"
      If re.Test(line) Then
        '方便调试
        'WScript.Echo line
        line = re.Replace(line, "")
        delta = delta + indents(i)
      End If
    Next
    CountDelta = delta
  End Function

  '处理单行的If Then
  Private Sub SingleLineIfThen(ByRef line)
    Dim re
    Set re = New RegExp
    re.IgnoreCase = True
    re.Pattern = "if.*?then.+"
    line = re.Replace(line, "")
    '去掉Private Public前缀
    re.Pattern = "(private|public).+?(sub|function|property)"
    line = re.Replace(line, "$2")
  End Sub

End Class
'Demon, 于2011年平安夜

来源：http://demon.tw/my-work/vbs-beautifier.html

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