/**
* Set array of flashcard ids, from a selection expressed as a string.
*
* Accepts:
* Single cards 3
* Range of cards 4-25
* Kanji <single utf8 char>
*
* Delimiters:
* All flashcard ids (numerical or kanji) must be separated by commas,
* or spaces, or tabs. A range of cards can not have spaces around the dash.
* Kanji characters do not need to be separated between them but must be separated
* from the numerical indices eg:
*
* 3, 42 15, 10-13 一年生
*
* @param string $selString Selection in string format
*
* @return int Number of cards in selection
*/
public function setFromString($selString)
{
$this->itemIds = array();
// split string on spaces, japanese space (0x3000) and comma
$selparts = preg_split('/[,\\s\\x{3000}]+/u', $selString, -1, PREG_SPLIT_NO_EMPTY);
if (!count($selparts)) {
return false;
}
foreach ($selparts as &$part) {
// numerical range
if (preg_match('/^([0-9]+)-([0-9]+)$/', $part, $matches)) {
$from = $matches[1];
$to = $matches[2];
if (!rtkBook::isValidRtkFrameNum($from) || !rtkBook::isValidRtkFrameNum($to)) {
$this->request->setError('if', sprintf('Invalid framenumber: "%s"', $part));
return false;
} elseif ($from > $to) {
$this->request->setError('ir', sprintf('Invalid range: "%s"', $part));
return false;
}
for ($i = $from; $i <= $to; $i++) {
$this->itemIds[] = $i;
}
} elseif (ctype_digit($part)) {
$framenum = intval($part);
if (!rtkBook::isValidRtkFrameNum($framenum)) {
$this->request->setError('if', sprintf('Invalid framenumber: "%s"', $part));
return false;
}
$this->itemIds[] = $framenum;
} elseif (CJK::hasKanji($part)) {
$cjkChars = CJK::getKanji($part);
if (!count($cjkChars)) {
continue;
}
foreach ($cjkChars as $cjk) {
$framenum = rtkBook::getIndexForKanji($cjk);
if ($framenum) {
$this->itemIds[] = $framenum;
} else {
$this->request->setError('if', sprintf('Cannot add non-Heisig character: "%s"', $part));
return false;
}
}
} else {
$this->request->setError('ip', sprintf('Invalid part: "%s"', $part));
return false;
}
}
// remove duplicates
$this->itemIds = array_unique($this->itemIds);
return $this->getNumCards();
}
/**
* Search for a kanji by keyword. The search term is an exact keyword,
* or part of a keyword. Multiple edition keywords with slashes should
* replace the slash with underscore first (cf MySQL LIKE operator).
*
* @return mixed Frame number, or FALSE if no results.
*/
public static function getFramenumForSearch($sSearch)
{
$s = trim($sSearch);
//$s = preg_replace('/[^0-9a-zA-Z-\.\' \[\]\(\)]/', '', $s);
if (CJK::hasKanji($s)) {
// it's not a western character..
/* 0x3000 http://www.rikai.com/library/kanjitables/kanji_codes.unicode.shtml */
self::getInstance()->select('framenum')->where('kanji = ?', $s)->query();
return ($row = self::$db->fetchObject()) ? $row->framenum : false;
} elseif (preg_match('/^[0-9]+$/', $s)) {
// check if frame number is valid
$framenum = intval($s);
return self::getInstance()->count('framenum = ?', $framenum) ? $framenum : false;
} elseif (preg_match('/[^0-9]/', $s)) {
// search on keyword
// acount for multiple edition keyword
// try to find an exact match
self::getInstance()->select('framenum')->where('keyword = ? OR keyword LIKE ? OR keyword LIKE ?', array($s, $s . '/%', '%/' . $s))->query();
if ($row = self::$db->fetchObject()) {
return $row->framenum;
} elseif (strlen($s) < 3) {
return false;
} else {
self::getInstance()->select('framenum')->where('keyword LIKE ?', '%' . $s . '%')->query();
return ($row = self::$db->fetchObject()) ? $row->framenum : false;
}
}
return false;
}
