/**
* Transform kanji in the input Japanese text into links to the Study area,
* and add class for Javascript popup with the Heisig keywords.
*
* @param string $j_text Japanese text in utf-8 from validated post data.
* @return string Japanese text as HTML code.
*/
protected function transformJapaneseText($j_text)
{
coreToolkit::loadHelpers('Tag');
$j_text = escape_once(trim($j_text));
// collect associative array of known kanji => kanji, framenum, keyword
$kanjis = ReviewsPeer::getKnownKanji($this->getUser()->getUserId(), array('kanji', 'keyword'));
$known = array();
foreach ($kanjis as $i => $kanjiData) {
$known[$kanjiData['kanji']] = $kanjiData;
}
// wrap known kanji in text with links to Study area and hooks for javascript tooltip
foreach ($known as $kanji => $info) {
$url = '/study/?search=' . $info['framenum'];
$rep = '<a href="' . $url . '" class="j" title="' . $info['keyword'] . '">' . $kanji . '</a>';
$j_text = str_replace($kanji, $rep, $j_text);
}
// assumes lines end with \r\n
$j_text = preg_replace('/[\\r\\n]+/', '<br/>', $j_text);
return $j_text;
}
