[CmdletBinding()]
param(
    [Parameter(Mandatory=$true)][string]$InputFile
)

# Check if the input file exists
if (-not (Test-Path $InputFile)) {
    Write-Error "The input file does not exist."
    exit 1
}

# Read the contents of the input file
$content = Get-Content -Path $InputFile

# Initialize an empty array to hold the updated lines
$updatedContent = @()

foreach($line in $content) {
    if($line -match "[~``'^`]"){
        $updatedLine = $line.Replace("STRING", "ALTCODE")
        $updatedContent += $updatedLine
    } else {
        $updatedContent += $line
    }
}

# Remove lines equal to "STRING" after trimming
$updatedContent = $updatedContent.Trim() -replace "(`n|^)STRING(`n|$)", ""


# Prepare the output file name by adding "-edit" before the file extension
$outputFile = [System.IO.Path]::GetFileNameWithoutExtension($InputFile) + "-edit" + [System.IO.Path]::GetExtension($InputFile)

# Write the updated content to the output file
Set-Content -Path $outputFile -Value $updatedContent