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Source code for wshver.vbs

(view source code of wshver.vbs as plain text) 

  1. Option Explicit
  2.  
  3. Dim arrReq, arrVer, blnArg, i, intReq, intRet, strVer
  4.  
  5. intRet = 0
  6.  
  7. With WScript
  8. 	' Read the current version
  9. 	arrVer = Split( .Version, "." )
  10. 	ReDim Preserve arrVer(2)
  11. 	arrVer(2) = .BuildVersion
  12. 	strVer = .Version & "." & .BuildVersion
  13. 	' Either 1 unnamed argument or 1 named, not both
  14.  
  15. 	If .Arguments.Named.Count * .Arguments.Unnamed.Count > 0 Then Syntax
  16. 	Select Case .Arguments.Unnamed.Count
  17. 		Case 0
  18. 			' Do nothing
  19. 		Case 1
  20. 			' Split the requested And actual versions into arrays
  21. 			arrReq = Split( .Arguments.Unnamed(0), "." )
  22. 			' Check if the requested version is numeric
  23. 			For i = 0 To UBound( arrReq )
  24. 				If Not IsNumeric( arrReq(i) ) Then Syntax
  25. 			Next
  26. 			' Compare the requested and actual versions
  27. 			intRet = 0
  28. 			For i = 0 To Min( 2, UBound( arrReq ) )
  29. 				If CLng( arrVer(i) ) > CLng( arrReq(i) ) Then
  30. 					Exit For
  31. 				End If
  32. 				If CLng( arrVer(i) ) < CLng( arrReq(i) ) Then
  33. 					intRet = 1
  34. 					Exit For
  35. 				End If
  36. 			Next
  37. 			strVer = .Version & "." & .BuildVersion
  38. 			If strVer = .Arguments.Unnamed(0) Then intRet = 0
  39. 		Case Else
  40. 			Syntax
  41. 	End Select
  42.  
  43. 	Select Case .Arguments.Named.Count
  44. 		Case 0
  45. 			' No switch: just display full version
  46. 		Case 1
  47. 			blnArg = False
  48. 			If .Arguments.Named.Exists( "Major" ) Then
  49. 				strVer = arrVer(0)
  50. 				intRet = Compare( strVer, .Arguments.Named( "Major" ) )
  51. 				blnArg = True
  52. 			End If
  53. 			If .Arguments.Named.Exists( "Minor" ) Then
  54. 				strVer = arrVer(1)
  55. 				intRet = Compare( strVer, .Arguments.Named( "Minor" ) )
  56. 				blnArg = True
  57. 			End If
  58. 			If .Arguments.Named.Exists( "Build" ) Then
  59. 				strVer = arrVer(2)
  60. 				intRet = Compare( strVer, .Arguments.Named( "Build" ) )
  61. 				blnArg = True
  62. 			End If
  63. 			If Not blnArg Then Syntax
  64. 		Case Else
  65. 			Syntax
  66. 	End Select
  67. 	' Display the version or part of it
  68. 	.Echo strVer
  69. End With
  70.  
  71. ' Exit with the calculated return code
  72. WScript.Quit intRet
  73.  
  74.  
  75. Function Compare( myVer, myReq )
  76. 	If MyReq = "" Then
  77. 		Compare = myVer
  78. 	Else
  79. 		If IsNumeric( myReq ) Then
  80. 			If myVer < myReq Then
  81. 				Compare = 1
  82. 			Else
  83. 				Compare = 0
  84. 			End If
  85. 		Else
  86. 			Syntax
  87. 		End If
  88. 	End If
  89. End Function
  90.  
  91.  
  92. Function Min( num1, num2 )
  93. 	If Not IsNumeric( num1 ) Then Syntax
  94. 	If Not IsNumeric( num2 ) Then Syntax
  95. 	If num1 < num2 Then
  96. 		Min = num1
  97. 	Else
  98. 		Min = num2
  99. 	End If
  100. End Function
  101.  
  102.  
  103. Sub Syntax
  104. 	Dim strMsg, strVer
  105. 	strVer = arrVer(0) & "." & arrVer(1) & "." & arrVer(2)
  106. 	strMsg = "WSHVer.vbs,  Version 1.10" _
  107. 	       & vbCrLf _
  108. 	       & "Return WSH version number or part of it" _
  109. 	       & vbCrLf & vbCrLf _
  110. 	       & "Usage:  WSHVER.VBS [ minreq | (/Major|/Minor|/Build)[:minreq] ]" _
  111. 	       & vbCrLf & vbCrLf _
  112. 	       & "Where:  /Major  displays the major version number (e.g. " & arrver(0) & ")" _
  113. 	       & vbCrLf _
  114. 	       & "        /Minor  displays the minor version number (e.g. " & arrver(1) & ")" _
  115. 	       & vbCrLf _
  116. 	       & "        /Build  displays the build number         (e.g. " & arrver(2) & ")" _
  117. 	       & vbCrLf _
  118. 	       & "        minreq  is the minimum required value; if specified, the return code" _
  119. 	       & vbCrLf _
  120. 	       & "                will be 0 if the actual version is equal to or greater than" _
  121. 	       & vbCrLf _
  122. 	       & "                Req, or 1 if it is less; if not specified, the return code" _
  123. 	       & vbCrLf _
  124. 	       & "                will be equal to the version number part (e.g. " & arrver(1) & " for /Minor)" _
  125. 	       & vbCrLf & vbCrLf _
  126. 	       & "Examples                 Display      Return code" _
  127. 	       & vbCrLf _
  128. 	       & "====================     =========    ===========================" _
  129. 	       & vbCrLf _
  130. 	       & "WSHVER.VBS " & arrver(0) & "." & arrVer(1) - 1 & "           " & strVer & "        0 (requirement met)" _
  131. 	       & vbCrLf _
  132. 	       & "WSHVER.VBS " & arrVer(0) & "." & arrVer(1) - 1 & "." & arrVer(2) + 10000 & "     " & strver & "        0 (requirement met)" _
  133. 	       & vbCrLf _
  134. 	       & "WSHVER.VBS " & arrver(0) + 1 & "             " & strver & "        1 (requirement not met)" _
  135. 	       & vbCrLf _
  136. 	       & "WSHVER.VBS /Major        " & arrver(0) & "                " & arrver(0) & " (major version)" _
  137. 	       & vbCrLf _
  138. 	       & "WSHVER.VBS /Minor:" & arrver(1) - 1 & "      " & arrver(1) & "                0 (requirement met)" _
  139. 	       & vbCrLf _
  140. 	       & "WSHVER.VBS /Minor        " & arrver(1) & "                " & arrver(1) & " (minor version)" _
  141. 	       & vbCrLf _
  142. 	       & "WSHVER.VBS /Build        " & arrver(2) & "        " & arrver(2) & " (build version)" _
  143. 	       & vbCrLf & vbCrLf _
  144. 	       & "Written by Rob van der Woude" _
  145. 	       & vbCrLf _
  146. 	       & "http://www.robvanderwoude.com"
  147. 	WScript.Echo strMsg
  148. 	WScript.Quit 1
  149. End Sub
  150.  

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