Public/cliwriters/Write-RainbowString.ps1
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function Write-RainbowString { [CmdletBinding()] [Reflection.AssemblyMetadata("title", "Write-RainbowString")] param( [Parameter(Mandatory = $false)] [String] $Line, [Parameter(Mandatory = $false)] [String] $ForegroundColor = '', [Parameter(Mandatory = $false)] [String] $BackgroundColor = '' ) begin { $Colors = @( 'Black', 'DarkBlue', 'DarkGreen', 'DarkCyan', 'DarkRed', 'DarkMagenta', 'DarkYellow', 'Gray', 'DarkGray', 'Blue', 'Green', 'Cyan', 'Red', 'Magenta', 'Yellow', 'White' ) } process { # $Colors[(Get-Random -Min 0 -Max 16)] [Char[]] $Line | ForEach-Object { if ($ForegroundColor -and $ForegroundColor -ieq 'rainbow') { if ($BackgroundColor -and $BackgroundColor -ieq 'rainbow') { Write-Host -ForegroundColor $Colors[( Get-Random -Min 0 -Max 16 )] -BackgroundColor $Colors[( Get-Random -Min 0 -Max 16 )] -NoNewline $_ } elseif ($BackgroundColor) { Write-Host -ForegroundColor $Colors[( Get-Random -Min 0 -Max 16 )] -BackgroundColor $BackgroundColor ` -NoNewline $_ } else { Write-Host -ForegroundColor $Colors[( Get-Random -Min 0 -Max 16 )] -NoNewline $_ } } else { # One of them has to be a rainbow, so we know the background is a rainbow here... if ($ForegroundColor) { Write-Host -ForegroundColor $ForegroundColor -BackgroundColor $Colors[( Get-Random -Min 0 -Max 16 )] -NoNewline $_ } else { Write-Host -BackgroundColor $Colors[(Get-Random -Min 0 -Max 16)] -NoNewline $_ } } } Write-Host '' } } |