No there isn't, but that certainly doesn't prevent you from making your own:
Code:
alias comparecs {
  var %c = 1, %d = 1

  while ($mid($1,%c,1) === $mid($2,%d,1) && $ifmatch) {
    inc %c
    inc %d
  }
  if ($mid($1,%c,1) === $mid($2,%d,1)) return $true
  return $false
}


$comparecs(0098,98) = $false
$comparecs(test,TEST) = $false
$comparecs(test,test) = $true