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Markus Fleschutz
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docs/write-morse-code.md
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156
docs/write-morse-code.md
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*write-morse-code.ps1*
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================
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This PowerShell script writes the given text in Morse code.
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Parameters
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----------
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```powershell
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PS> ./write-morse-code.ps1 [[-text] <String>] [[-speed] <Int32>] [<CommonParameters>]
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-text <String>
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Specifies the text to write
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Required? false
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Position? 1
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Default value
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Accept pipeline input? false
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Accept wildcard characters? false
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-speed <Int32>
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Specifies the speed of one time unit (100 ms per default)
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Required? false
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Position? 2
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Default value 100
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Accept pipeline input? false
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Accept wildcard characters? false
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[<CommonParameters>]
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This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction,
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WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
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```
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Example
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-------
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```powershell
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PS> ./write-morse-code ABC
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● ― ― ● ● ● ― ● ― ●
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```
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Notes
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-----
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Author: Markus Fleschutz | License: CC0
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Related Links
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-------------
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https://github.com/fleschutz/PowerShell
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Script Content
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--------------
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```powershell
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<#
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.SYNOPSIS
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Writes Morse code
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.DESCRIPTION
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This PowerShell script writes the given text in Morse code.
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.PARAMETER text
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Specifies the text to write
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.PARAMETER speed
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Specifies the speed of one time unit (100 ms per default)
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.EXAMPLE
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PS> ./write-morse-code ABC
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● ― ― ● ● ● ― ● ― ●
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.LINK
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https://github.com/fleschutz/PowerShell
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.NOTES
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Author: Markus Fleschutz | License: CC0
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#>
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param([string]$text = "", [int]$speed = 100) # one time unit in milliseconds
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function gap { param([int]$Length)
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for ([int]$i = 0; $i -lt $Length; $i++) {
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Write-Host " " -noNewline
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}
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Start-Sleep -milliseconds ($Length * $speed)
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}
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function dot {
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Write-Host "●" -noNewline
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Start-Sleep -milliseconds $speed # signal
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}
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function dash {
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Write-Host "―" -noNewline
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Start-Sleep -milliseconds (3 * $speed) # signal
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}
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function Char2MorseCode { param([string]$Char)
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switch($Char) {
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'A' { dot; gap 1; dash; gap 3 }
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'B' { dash; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'C' { dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 3 }
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'D' { dash; gap 1; dot; gap 1; dot; gap 3 }
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'E' { dot; gap 3 }
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'F' { dot; gap 1; dot; gap 1; dash; gap 1; dot; gap 3 }
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'G' { dash; gap 1; dash; gap 1; dot; gap 3 }
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'H' { dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'I' { dot; gap 1; dot; gap 3 }
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'J' { dot; gap 1; dash; gap 1; dash; gap 1; dash; gap 3 }
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'K' { dash; gap 1; dot; gap 1; dash; gap 3 }
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'L' { dot; gap 1; dash; gap 1; dot; gap 1; dot; gap 3 }
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'M' { dash; gap 1; dash; gap 3 }
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'N' { dash; gap 1; dot; gap 3 }
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'O' { dash; gap 1; dash; gap 1; dash; gap 3 }
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'P' { dot; gap 1; dash; gap 1; dash; gap 1; dot; gap 3 }
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'Q' { dash; gap 1; dash; gap 1; dot; gap 1; dash; gap 3 }
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'R' { dot; gap 1; dash; gap 1; dot; gap 3 }
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'S' { dot; gap 1; dot; gap 1; dot; gap 3 }
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'T' { dash; gap 3 }
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'U' { dot; gap 1; dot; gap 1; dash; gap 3 }
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'V' { dot; gap 1; dot; gap 1; dot; gap 1; dash; gap 3 }
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'W' { dot; gap 1; dash; gap 1; dash; gap 3 }
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'X' { dash; gap 1; dot; gap 1; dot; gap 1; dash; gap 3 }
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'Y' { dash; gap 1; dot; gap 1; dash; gap 1; dash; gap 3 }
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'Z' { dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 3 }
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'1' { dot; gap 1; dash; gap 1; dash; gap 1; dash; gap 1; dash; gap 3 }
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'2' { dot; gap 1; dot; gap 1; dash; gap 1; dash; gap 1; dash; gap 3 }
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'3' { dot; gap 1; dot; gap 1; dot; gap 1; dash; gap 1; dash; gap 3 }
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'4' { dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 1; dash; gap 3 }
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'5' { dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'6' { dash; gap 1; dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'7' { dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'8' { dash; gap 1; dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 3 }
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'9' { dash; gap 1; dash; gap 1; dash; gap 1; dash; gap 1; dot; gap 3 }
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'0' { dash; gap 1; dash; gap 1; dash; gap 1; dash; gap 1; dash; gap 3 }
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'?' { dot; gap 1; dot; gap 1; dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 3 }
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'!' { dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 1; dash; gap 1; dash; gap 3 }
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'.' { dot; gap 1; dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 1; dash; gap 3 }
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',' { dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 1; dash; gap 1; dash; gap 3 }
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"'" { dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 3 }
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':' { dash; gap 1; dash; gap 1; dash; gap 1; dot; gap 1; dot; gap 1; dot; gap 3 }
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'+' { dot; gap 1; dash; gap 1; dot; gap 1; dash; gap 1; dot; gap 3 }
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'-' { dash; gap 1; dot; gap 1; dot; gap 1; dot; gap 1; dot; gap 1; dash; gap 3 }
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'*' { dash; gap 1; dot; gap 1; dot; gap 1; dash; gap 3 }
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'÷' { dash; gap 1; dot; gap 1; dot; gap 1; dash; gap 1; dot; gap 3 }
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default { gap 7 } # medium gap (between words)
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}
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}
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try {
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if ($text -eq "" ) { [string]$text = Read-Host "Enter text to write" }
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[char[]]$ArrayOfChars = $text.ToUpper()
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foreach($Char in $ArrayOfChars) {
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Char2MorseCode $Char
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}
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exit 0 # success
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} catch {
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"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
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exit 1
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}
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```
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*(generated by convert-ps2md.ps1 using the comment-based help of write-morse-code.ps1 as of 10/19/2023 08:11:44)*
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