/**
* Parses a search phrase to find the excluding matches, exact matches,
* any matches and all other words
*
* @access public
* @param string $phrase Phrase to parse
* @param array $searchable List of searchable gadgets
* @return array An array with the following indexes (and results):
* - all, exact, least and exclude
*/
function parseSearch($options, &$searchable)
{
$phrase = $options['all'];
if (!empty($phrase)) {
$phrase .= chr(32);
}
$newOptions = array('all' => '', 'exact' => '', 'least' => '', 'exclude' => '', 'date' => '');
$size = Jaws_UTF8::strlen($phrase);
$lastKey = '';
$tmpWord = '';
for ($i = 0; $i < $size; $i++) {
$word = Jaws_UTF8::substr($phrase, $i, 1);
$ord = Jaws_UTF8::ord($word);
$tmpWord .= $word;
switch ($ord) {
case 34:
// Quotes..
if ($lastKey == 'exact') {
//Open exact was open, we are closing it
$newOptions['exact'] .= Jaws_UTF8::substr($tmpWord, 1, Jaws_UTF8::strlen($tmpWord) - 2);
$lastKey = '';
$tmpWord = '';
} else {
if (empty($lastKey)) {
$lastKey = 'exact';
//We open the exact match
}
}
break;
case 43:
//Plus
if ($lastKey != 'exact') {
$lastKey = 'least';
}
break;
case 45:
//Minus
if ($lastKey != 'exclude') {
$lastKey = 'exclude';
}
break;
case 32:
//Space
if ($lastKey != 'exact' && !empty($lastKey)) {
if ($lastKey != 'all') {
$substrCount = 1;
if ($tmpWord[0] == ' ') {
$substrCount = 2;
}
$newOptions[$lastKey] .= Jaws_UTF8::substr($tmpWord, $substrCount);
} else {
$newOptions[$lastKey] .= $tmpWord;
}
$lastKey = '';
$tmpWord = '';
}
break;
default:
//Any other word opens all
if (empty($lastKey)) {
$lastKey = 'all';
}
break;
}
}
$options['all'] = '';
$min_key_len = $this->gadget->registry->fetch('min_key_len');
foreach (array_keys($newOptions) as $option) {
if (!empty($newOptions[$option])) {
$options[$option] = trim(isset($options[$option]) ? $options[$option] . ' ' . $newOptions[$option] : $newOptions[$option]);
}
$content = isset($options[$option]) ? $options[$option] : '';
$content = $content;
$content = Jaws_UTF8::strtolower(Jaws_UTF8::trim($content));
if (Jaws_UTF8::strlen($content) >= $min_key_len) {
$searchable = true;
}
$options[$option] = '';
switch ($option) {
case 'exclude':
case 'least':
case 'all':
$options[$option] = array_filter(explode(' ', $content));
break;
case 'exact':
$options[$option] = array($content);
break;
case 'date':
if (in_array($content, array('past_1month', 'past_2month', 'past_3month', 'past_6month', 'past_1year', 'anytime'))) {
$options[$option] = array($content);
} else {
$options[$option] = array('anytime');
}
break;
}
}
return $options;
}
