function low_format($str = '', $format = 'html')
{
// Encode/decode chars specifically for EE params
$code = array('"' => '"', ''' => "'", '{' => '{', '}' => '}');
switch ($format) {
case 'url':
$str = urlencode($str);
break;
case 'html':
$str = htmlspecialchars($str);
$str = low_format($str, 'ee-encode');
break;
case 'clean':
$str = low_clean_string($str);
break;
case 'ee-encode':
$str = str_replace(array_values($code), array_keys($code), $str);
break;
case 'ee-decode':
$str = str_replace(array_keys($code), array_values($code), $str);
break;
}
return $str;
}
/**
* Populate internal Terms array
*/
private function _set_terms()
{
// --------------------------------------
// Local cache of stop words
// --------------------------------------
static $stop_words;
// --------------------------------------
// Initiate fulltext mode to TRUE
// --------------------------------------
$this->_fulltext = TRUE;
// --------------------------------------
// If mode is auto and loose ends is left/both, no fulltext
// --------------------------------------
if (($mode = $this->params->get('search_mode')) != 'auto' && in_array($this->params->get('loose_ends'), array('left', 'both'))) {
$this->_fulltext = FALSE;
}
// --------------------------------------
// Reset terms
// --------------------------------------
$this->_terms = $this->_keywords = array();
// --------------------------------------
// Get raw keywords from parameters
// --------------------------------------
$words = (string) $this->params->get('keywords');
// --------------------------------------
// Replace pipes with spaces as if it were separate words
// --------------------------------------
$words = str_replace('|', ' ', $words);
// --------------------------------------
// Exact match?
// --------------------------------------
if ($mode == 'exact') {
$words = '"' . str_replace('"', '', $words) . '"';
}
// --------------------------------------
// Use tokens to get to each term,
// including quoted ones
// --------------------------------------
for ($word = strtok($words, ' '); $word !== FALSE; $word = strtok(' ')) {
// Create new Term Object
$term = new Low_search_term();
// Is term part of an OR group
$group = FALSE;
if ($mode == 'auto') {
// Check if search term is part of an OR group
if ($word == 'OR') {
// Grab the next one or bail
if (($word = strtok(' ')) === FALSE) {
break;
}
if ($total = count($this->_terms)) {
// Set the previous token to a term_group, if it's not already
$prev = $this->_terms[$total - 1];
if (!$prev instanceof Low_search_term_group) {
$prev = new Low_search_term_group(array($prev));
$this->_terms[$total - 1] = $prev;
}
$group = TRUE;
}
}
// Negation?
if ($term->exclude = substr($word, 0, 1) == '-') {
$word = ltrim($word, '-');
}
// Loose ends on the left
if ($term->loose_left = substr($word, 0, 1) == '*') {
$word = ltrim($word, '*');
$this->_fulltext = FALSE;
}
// Loose ends on the right
if ($term->loose_right = substr($word, -1) == '*') {
$word = rtrim($word, '*');
}
}
// Check for quoted terms
if (substr($word, 0, 1) == '"') {
// 1-word quote or not?
$word = substr($word, -1) == '"' ? substr($word, 1, -1) : substr($word, 1) . ' ' . strtok('"');
// Set exact marker to TRUE
$term->exact = TRUE;
}
// Non-exact match, strip ignore words from term
$ignore = $term->exact ? array() : ee()->low_search_settings->get('ignore_words');
// Get the cleaned search term
$term->term = low_clean_string($word, $ignore);
// Skip the rest if nothing's left
if (!$term->term) {
continue;
}
// Add term object to previous group or general terms
$group ? $prev->terms[] = $term : ($this->_terms[] = $term);
// Add whole thing to the keywords array if we're not excluding
if (!$term->exclude) {
$this->_keywords[] = $term->term;
}
// Check if keywords are fulltext-worthy
if ($this->_fulltext) {
foreach (explode(' ', $term->term) as $word) {
// Get word length
$length = MB_ENABLED ? mb_strlen($word) : strlen($word);
if ($length < ee()->low_search_settings->get('min_word_length')) {
$this->_fulltext = FALSE;
continue;
}
// Make sure stop words are an array
if (!is_array($stop_words)) {
// Clean stopwords and convert into array
$stop_words = (array) array_unique(preg_split('/\\s+/', low_clean_string(ee()->low_search_settings->get('stop_words'))));
}
if (in_array($word, $stop_words)) {
$this->_fulltext = FALSE;
continue;
}
}
}
}
// Final ckeck to see if we're dealing with fulltext or not:
// Empty keywords is sign that there's only negated keywords,
// which cannot use fulltext...
if ($this->_fulltext && empty($this->_keywords)) {
$this->_fulltext = FALSE;
}
}