parsing script never ends - powershell

Question

i have the following script but it does never end executing.
what could be the issue ? I tried to debug it but apparently it works correctly with a single file, but when I throw it against a folder full of content fails.
$path = split-path -parent $MyInvocation.MyCommand.Definition
$files = Get-ChildItem "$path\CodeForCertification\5_SourceCode\*" -Include *.c,*.h -Recurse | where{
! $_.PSIsContainer
}#$PSScriptRoot
ForEach ($file in $files){
$data = Get-Content -Path $file.FullName
$feature = Get-Content "$path\Disabled_Features.txt"
#[System.ArrayList]$Modifier
$nl=[Environment]::NewLine
$Modifier=#()
$flag=0
$data = $data | ForEach-Object -Begin {
$ignore = $false; $levels = 0
} -Process {
for($counter=0; $counter -lt $feature.Count; $counter++){
$parse = $feature[$counter]
if($_ -match "^#ifdef $parse" -And $flag -eq '0') {
$ignore = $true
$flag = 1;
}
}
if($ignore) {
if ($_ -match "^#ifdef") {
$levels++
}elseif ($_ -match "#endif") {
if($levels -ge 1) {
$levels--
if($levels -eq '0'){
$ignore = $false
}
}
}
}else {
$flag=0
$temp=$_
$_
$Modifier+="$temp"
}
}
$data | Out-File $file.FullName
}

Answer 1

OK, Jackson, let's solve your problem before you enter some kind of question spam filter ;-)
Consider this (just put it somewhere at the start of your script):
function RemoveUndesiredFeatures([string[]]$lines,[string[]]$undesiredFeatures)
{
$inIgnoreBlock = $false
$nestingLevel = 0
foreach ($line in $lines)
{
if ($inIgnoreBlock)
{
# Only search for nested blocks and end of block
if ($line -like "#ifdef*")
{
$nestingLevel++
}
elseif ($line -like "#endif*")
{
$nestingLevel--
}
if ($nestingLevel -eq 0)
{
$inIgnoreBlock = $false
}
}
else
{
# Search for undesired feature
$isIfdefMatch = $line -match "#ifdef (?<feature>\w+)"
if ($isIfdefMatch -and ($Matches.feature -in $undesiredFeatures))
{
# Ignore Feature
$inIgnoreBlock = $true
$nestingLevel++
}
else
{
# Output line
$line
}
}
}
}
Here is my example to use it:
$undesiredFeatures = #("F1","F2") # Just as example. Get-Content on a file with features is also fine
$files = Get-ChildItem *.c,*.h -Recurse # Again, just as example
foreach ($file in $files)
{
$lines = Get-Content $file.FullName
$changedLines = RemoveUndesiredFeatures $lines $undesiredFeatures
if ($changedLines.Count -ne $lines.Count)
{
# Features were removed. Write out changed file (to a different file to preserve my test files)
Set-Content -Value $changedLines -Path "$($file.FullName).changed"
}
}