+// Adds a "lang" specification in a "postopts" element of given $arr,
+// if possible and not already present.
+// Expects "body" element to exist in $arr.
+// TODO: add a parameter to request forcing override
+function item_add_language_opt(&$arr) {
+
+ if (version_compare(PHP_VERSION, '5.3.0', '<')) return; // LanguageDetect.php not available ?
+
+ if ( x($arr, 'postopts') )
+ {
+ if ( strstr($arr['postopts'], 'lang=') )
+ {
+ // do not override
+ // TODO: add parameter to request overriding
+ return;
+ }
+ $postopts = $arr['postopts'];
+ }
+ else
+ {
+ $postopts = "";
+ }
+
+ require_once('library/langdet/Text/LanguageDetect.php');
+ $naked_body = preg_replace('/\[(.+?)\]/','',$arr['body']);
+ $l = new Text_LanguageDetect;
+ //$lng = $l->detectConfidence($naked_body);
+ //$arr['postopts'] = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
+ $lng = $l->detect($naked_body, 3);
+
+ if (sizeof($lng) > 0) {
+ if ($postopts != "") $postopts .= '&'; // arbitrary separator, to be reviewed
+ $postopts .= 'lang=';
+ $sep = "";
+ foreach ($lng as $language => $score) {
+ $postopts .= $sep . $language.";".$score;
+ $sep = ':';
+ }
+ $arr['postopts'] = $postopts;
+ }
+}
+