Telemetica: Added assignment 2 code.

telematica/ass2/translate

+#!/usr/bin/php
+<?php
+
+// Call Google Translate API
+function translate($text, $from, $to) {
+    $key = "AIzaSyD5sFp2R2IMtDVWdu-4X-TptJCSod0chVc";
+    $url = sprintf("https://www.googleapis.com/language/translate/v2?key=%s&source=%s&target=%s&q=%s",
+                   $key, $from, $to, urlencode($text));
+
+    if( ($response = file_get_contents($url)) === false )
+        die("Cannot connect to Google Translate server.");
+
+    $response = json_decode($response, true);
+
+    return $response["data"]["translations"][0]["translatedText"];
+}
+
+// Parse input
+$argc != 3 && die(sprintf("Usage: %s FROM TO\n", $argv[0]));
+list($from, $to) = array_slice($argv, 1);
+$lang_format = "/^[a-z]{2}$/i";
+
+if( !preg_match($lang_format, $from) || !preg_match($lang_format, $to) )
+    die("A language should be specified as two characters.\n");
+
+// Show parsed input
+printf("Input language:  %s\nOutput language: %s\n",
+       $from = strtolower($from), $to = strtolower($to));
+
+// Read input
+$handle = fopen("php://stdin", "r");
+
+echo "\nEnter the text that you want to translate (use ctrl-D to "
+    ."end the program).\n\nTranslate: ";
+
+while( ($read = fgets($handle)) !== false )
+    printf("Translation: %s\n\nTranslate: ", translate($read, $from, $to));
+
+fclose($handle);
+
+?>