Ruby Style Regex Matching in Powershell

output.txt

Matched!
user = idavis
repo = octopress
sha = 7e548dec97365691571d3b6e3c880717129692b9
caption = haml.rb
file = haml.rb
link = https://github.com/idavis/octopress/blob/master/plugins/haml.rb
linkTitle = Current Version 

Regex.ps1

function =~ {
  param([regex]$regex, [switch]$debug, [switch]$caseSensitive)
  process {
    $matches = $null
    $mached = $false
    if($caseSensitive) {
      $matched = $_ -cmatch $regex
    } else {
      $matched = $_ -match $regex
    }
    if(!$matched) { return $false }
    foreach( $key in $matches.keys) {
      if((![char]::IsDigit("$key")) -or ("$key" -eq "0")) {
        continue
      }
      $name = "$key"
      $value = $matches[$key]
      $variableIsDeclared = @(Get-Variable $name -Scope 1 -ErrorAction SilentlyContinue).Length -gt 0
      if($variableisDeclared) {
        if($debug){
          write-host "setting $name to $value"
        }
        Set-Variable -Name $name -Value $value -Scope 1
      } else {
        if($debug) {
          write-host "making $name to $value"
        }
        New-Variable -Name $name -Value $value -Scope 1
      }
    }
    return $true
  }
}

test.ps1

$pattern = "^(\w+)\s+(\w+)\s+(\w+)\s*(\.?\w+.?\w*)?\s*(http[s]*:\/\/\S+)?\s*(\S[\S\s]*)?$"
$text = "idavis octopress 7e548dec97365691571d3b6e3c880717129692b9 haml.rb https://github.com/idavis/octopress/blob/master/plugins/haml.rb Current Version "

if($text | =~ $pattern) {
  Write-Host "Matched!"
  write-host "user = $1"
  write-host "repo = $2"
  write-host "sha = $3"
  write-host "caption = $4"
  write-host "file = $caption"
  write-host "link = $5"
  write-host "linkTitle = $6"
}