It turned out that I don’t need to use this function I wrote but I’m sure there will be time when I will need it, so I’m pasting the code here. This function basically gives you the index of the character at the #th occurrence.
Function Get-NthIndexOf
{
[CmdletBinding()]
Param
(
[Parameter(Position=0,Mandatory=$true)]
[string] $TargetString,
[Parameter(Position=1,Mandatory=$true)]
[char] $CharToFind,
[Parameter(Position=2,Mandatory=$true)]
[int] $Nth,
[Parameter(Position=3,Mandatory=$false)]
[boolean] $Forward = $true
)
If ($Forward)
{
$occurence = 0
For ([int] $i = 0; $i -lt $TargetString.Length; $i++)
{
If ($TargetString[$i] -eq $CharToFind)
{
$occurence++
If ($Nth -eq $occurence)
{
Return $i
}
}
}
}
Else
{
$occurence = 0
For ([int] $i = $TargetString.Length - 1; $i -gt 0; $i--)
{
If ($TargetString[$i] -eq $CharToFind)
{
$occurence++
If ($Nth -eq $occurence)
{
Return $i
}
}
}
}
#Code falling here means it didn't find the char at all or $occurence just didn't reach $Nth
Return -1
}
