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39 lines
937 B
PowerShell
Executable File
39 lines
937 B
PowerShell
Executable File
<#
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.SYNOPSIS
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write-rot13.ps1 [<text>]
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.DESCRIPTION
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Prints the given text encoded or decoded with ROT13.
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.EXAMPLE
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PS> .\write-rot13.ps1 "Hello World"
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.NOTES
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Author: Markus Fleschutz · License: CC0
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.LINK
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https://github.com/fleschutz/PowerShell
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#>
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param([string]$text = "")
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function ROT13 { param([string]$text)
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$text.ToCharArray() | ForEach-Object {
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if ((([int] $_ -ge 97) -and ([int] $_ -le 109)) -or (([int] $_ -ge 65) -and ([int] $_ -le 77))) {
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$Result += [char] ([int] $_ + 13);
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} elseif ((([int] $_ -ge 110) -and ([int] $_ -le 122)) -or (([int] $_ -ge 78) -and ([int] $_ -le 90))) {
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$Result += [char] ([int] $_ - 13);
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} else {
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$Result += $_
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}
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}
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return $Result
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}
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try {
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if ($text -eq "" ) { $text = read-host "Enter text to write" }
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$Result = ROT13 $text
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write-output $Result
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exit 0
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} catch {
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write-error "⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
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}
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