(VBScript) Generating Random ASCII Strings

Demonstrates how to generate random us-ascii strings.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' All Chilkat classes can be unlocked at once at the beginning of a program
' by calling UnlockBundle.  It requires a Bundle unlock code.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Global")
set chilkatGlob = CreateObject("Chilkat.Global")
success = chilkatGlob.UnlockBundle("Anything for 30-day trial.")
If (success <> 1) Then
    outFile.WriteLine(chilkatGlob.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Prng")
set fortuna = CreateObject("Chilkat.Prng")

' Generate random strings having only lowercase chars (a-z)
' Disallow digits and uppercase and only allow lowercase
bDigits = 0
bUppercase = 0
bLowercase = 1

outFile.WriteLine("-- only lowercase alpha (a-z)")
For i = 1 To 10
    ' Generate 20-character strings.
    outFile.WriteLine(fortuna.RandomString(20,bDigits,bLowercase,bUppercase))
Next

' Allow both lowercase and uppercase alpha chars
bUppercase = 1
outFile.WriteLine("-- lower and uppercase alpha (a-zA-Z)")
For i = 1 To 10
    ' Generate 20-character strings.
    outFile.WriteLine(fortuna.RandomString(20,bDigits,bLowercase,bUppercase))
Next

' Allow digits (0-9)
bDigits = 1
outFile.WriteLine("-- digits and lower/uppercase alpha (0-9a-zA-Z)")
For i = 1 To 10
    ' Generate 20-character strings.
    outFile.WriteLine(fortuna.RandomString(20,bDigits,bLowercase,bUppercase))
Next

' Allow only digits (0-9)
bUppercase = 0
bLowercase = 0
outFile.WriteLine("-- only digits (0-9)")
For i = 1 To 10
    ' Generate 20-character strings.
    outFile.WriteLine(fortuna.RandomString(20,bDigits,bLowercase,bUppercase))
Next

outFile.Close