RosettaCodeData/Task/FASTA-format/PowerShell/fasta-format-2.psh

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$file = @'
>Rosetta_Example_1
THERECANBENOSPACE
>Rosetta_Example_2
THERECANBESEVERAL
LINESBUTTHEYALLMUST
BECONCATENATED
'@
$lines = $file.Replace("`n","~").Split(">") | ForEach-Object {$_.TrimEnd("~").Split("`n",2,[StringSplitOptions]::RemoveEmptyEntries)}
$output = New-Object -TypeName PSObject
foreach ($line in $lines)
{
$name, $value = $line.Split("~",2) | ForEach-Object {$_.Replace("~","")}
$output | Add-Member -MemberType NoteProperty -Name $name -Value $value
}
$output | Format-List