Gets the content between two tags

[Davider]

Thanks, works Well,

The following logic seems easier to understand, 
Is it possible to create a member function(_s.Match) like -match?

---------------------------------------------------
$between = $false
$s |
foreach{
        if ($_ -match '#if.+|#endif')
        {
                $between = !$between
        }
        else
        {
                if ($between -eq $true) { $_ }
        }
}

---

1.Deleting them(#if...#endif) using the following regular expression leaves an extra blank line

2.What does (?s) mean?
-------------------------------------------------
_s.replacerx("#if.*(?s).*?#endif" "")

3. When there are multiple lines of content, trim has no effect
out a2[1 i].trim
-------------------------------------------------
 #if A
     part1
     part1
 #endif
 
 part
 part
 
 #if V
     part2
     part2
     part2
 #endif
 
 part
 part
 
 #if C
     part3
     part3
 #endif