WoodpeckerTools

0.1.0

private/Normalize-WpcSequenceIndentation.ps1

function Normalize-WpcSequenceIndentation {
    param(
        [Parameter(Mandatory = $true)]
        [string] $YamlText,
        [Parameter(Mandatory = $true)]
        [string] $KeyName
    )

    $lines = [System.Collections.Generic.List[string]]::new()
    foreach ($line in ($YamlText -split "`r?`n")) {
        $lines.Add($line)
    }

    for ($lineIndex = 0; $lineIndex -lt $lines.Count; $lineIndex++) {
        $match = [regex]::Match($lines[$lineIndex], "^([ ]*)$([regex]::Escape($KeyName)):\s*$")
        if (-not $match.Success) {
            continue
        }

        $baseIndent = $match.Groups[1].Value
        $expectedItemIndent = "${baseIndent} "

        for ($itemIndex = $lineIndex + 1; $itemIndex -lt $lines.Count; $itemIndex++) {
            $currentLine = $lines[$itemIndex]
            if ($currentLine -match "^\s*$") {
                continue
            }

            if ($currentLine.StartsWith("$expectedItemIndent- ")) {
                continue
            }

            if ($currentLine.StartsWith("$baseIndent- ")) {
                $lines[$itemIndex] = "$expectedItemIndent$($currentLine.Substring($baseIndent.Length))"
                continue
            }

            break
        }
    }

    return ($lines -join "`n")
}