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Send-ToPrinter.ps1
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Send-ToPrinter.ps1
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Function __internalAdd-HTMLCode {
<#
Internal function used by Send-ToPrinter
Do not call this function directly
#>
Param (
[Parameter(Mandatory)]
[string]$TokenName,
[Parameter(Mandatory)]
[string]$CodeBlock
)
Begin {
$tokenColours = @{
'NewLine' = '#000000'
'Indentation' = '#000000'
'LineContinuation' = '#000000' # Back-Tick
# ISE Light Colour Scheme
'Attribute' = '#00bfff'
'Command' = '#0000ff'
'CommandArgument' = '#8a2be2'
'CommandParameter' = '#000080'
'Comment' = '#00cc00'
'GroupEnd' = '#000000'
'GroupStart' = '#000000'
'Keyword' = '#00008b'
'LoopLabel' = '#00008b'
'Member' = '#000000'
'Number' = '#800080'
'Operator' = '#a9a9a9'
'StatementSeparator' = '#000000'
'String' = '#8b0000'
'Type' = '#008080'
'Variable' = '#ff4500'
}
}
Process {
$htmlColour = $tokenColours[$TokenName].ToString()
If (($TokenName -eq 'NewLine') -or ($TokenName -eq 'LineContinuation')) {
If ($TokenName -eq 'LineContinuation') {
[void]$codeBuilder.Append("<span style='color:$htmlColour'>``</span>") # Note the double tick
}
[void]$codeBuilder.Append('<br/>')
}
Else {
$CodeBlock = [System.Web.HttpUtility]::HtmlEncode($CodeBlock)
$CodeBlock = $CodeBlock.Replace(' ', ' ')
[string[]]$multiLines = ($CodeBlock -split "`r`n")
$span = " style='color:$htmlColour'"
If ($TokenName -eq 'Indentation') { $span = '' }
ForEach ($line In $multiLines) {
[void]$codeBuilder.Append("<span$span>$line</span><br/>")
}
[void]$codeBuilder.Remove($codeBuilder.Length - 5, 5) # Remove final <br/> from multi-line addition
}
}
End {
}
}
Function __internalConvertTo-HtmlPage {
<#
Internal function used by Send-ToPrinter
Do not call this function directly
#>
Param (
[parameter(Mandatory)]
[string]$Code,
[parameter(Mandatory)]
[string]$Title
)
$header = @"
<!doctype html public `"-//w3c//dtd html 4.0 Transitional//EN`">
<html><head>
<title>$Title</title>
<style>
body, table { margin: 0px; border: 0px; border-collapse: collapse; font-family: Consolas, Lucida Console; font-size: 10pt; }
tr:first-child, tr:last-child { line-height: 5px; }
td { padding: 1px 9px 0px 9px; white-space: nowrap; }
td:first-child { background: #e8e8e8; color: #909090; border-right: 1px solid #909090; text-align: right; }
td:last-child { background: #ffffff; }
</style>
</head>
<body>
<table>
<tr><td> </td><td></td></tr>
"@
$footer = @"
<tr><td> </td><td></td></tr>
</table>
</body>
</html>
"@
$html = New-Object -TypeName 'System.Text.StringBuilder'
[string[]]$codeSplit = ($Code -split '<br/>')
[void]$html.AppendLine($header)
0..($codeSplit.Count) | ForEach-Object -Process {
[void]$html.AppendLine("<tr><td>$($_ + 1)</td><td>$($codeSplit[$_])</td></tr>")
}
[void]$html.AppendLine($footer)
Return $html
}
Function Send-ToPrinter {
<#
.SYNOPSIS
Send the specified script to a printer via a HTML file and browser
.DESCRIPTION
Converts the specified script into a colour formatted HTML file with line numbers and displays it in a browser window, where it can be printed.
Can also be used from within the ISE if added to the Add-Ons menu with the following code:
$psISE.CurrentPowerShellTab.AddOnsMenu.Submenus.Add('Send To Printer', { Send-ToPrinter }, 'Alt+Shift+P') | Out-Null
Colours are set to the ISE default theme and can be changed within the __internalAdd-HTMLCode function
Taken from the original script at: https://unlockpowershell.wordpress.com/2011/12/30/print-from-powershells-integrated-scripting-environment
.PARAMETER InputFile
The name of the file to load for printing
.EXAMPLE
Send-ToPrinter -InputFile .\Untitled1.ps1
.NOTES
For additional information please see my GitHub wiki page
.LINK
https://github.com/My-Random-Thoughts
#>
Param (
[System.IO.FileInfo]$InputFile
)
Begin {
If ($psISE) {
$inputText = $psISE.CurrentFile.Editor.Text
}
ElseIf ($InputFile) {
If (-not (Test-Path -Path $InputFile)) { Throw 'Input file not found' }
$inputText = (Get-Content -Path $InputFile) -join "`r`n"
}
Else {
Throw 'Input file not specified'
}
[int]$tokenPosition = 0
$parseErrors = $null
$codeBuilder = New-Object -TypeName 'System.Text.StringBuilder'
}
Process {
$parseTokens = [System.Management.Automation.PSParser]::Tokenize($inputText, [ref]$parseErrors)
If ($parseErrors) { Throw $parseErrors[0] }
ForEach ($token in $parseTokens) {
If ($tokenPosition -lt $token.Start) {
# Add indentation
$codeBlock = $inputText.Substring($tokenPosition, ($token.Start - $tokenPosition))
__internalAdd-HTMLCode -TokenName 'Indentation' -CodeBlock $codeBlock
}
$codeBlock = $inputText.Substring($token.Start, $token.Length)
$tokenName = $token.Type.ToString()
__internalAdd-HTMLCode -TokenName $tokenName -CodeBlock $codeBlock
$tokenPosition = ($token.Start + $token.Length)
}
If ($psISE) { $title = $psISE.CurrentFile.DisplayName } Else { $title = $InputFile.Name }
$path = "$($env:temp)\$title.toPrinter.html"
(__internalConvertTo-HtmlPage -Code $($codeBuilder.ToString()) -Title $title).ToString() | Out-File -FilePath $path -Encoding ascii
Invoke-Item -Path $path
}
End {
}
}