#!/usr/bin/php
<?php # -*- coding: utf-8 mode: php -*- vim:sw=2:sts=2:et:ai:si:sta:fenc=utf-8

if ($argc <= 1) die("ERROR: Vous devez spécifier le nom de la clé\n");

$data = json_decode(stream_get_contents(STDIN), true);
foreach ($data as $datum) {
  $first = true;
  for ($i = 1; $i < $argc; $i++) {
    $result = $datum;
    $keys = explode(".", trim($argv[$i]));
    foreach ($keys as $key) {
      if ($result === null) break;
      if (!$key) continue;
      if (isset($result[$key])) {
        $result = $result[$key];
      } else {
        $result = null;
      }
    }

    if ($first) $first = false;
    else echo "\t";
    if (is_array($result)) var_export($result);
    else echo $result;
  }
  echo "\n";
}