/**
* Convert $str to same register with $base
*
* @param string $str
* @param string $base
* @return string
*/
protected function toSameRegister($str, $base)
{
$minLen = min($this->text->strlen($base), $this->text->strlen($str));
for ($i = 0; $i < $minLen; $i++) {
$chr = $this->text->substr($base, $i, 1);
if ($chr != $this->text->strtolower($chr)) {
$chrN = $this->text->substr($str, $i, 1);
$chrN = strtoupper($chrN);
$str = substr_replace($str, $chrN, $i, 1);
}
}
return $str;
}
/**
* Split string to words
*
* @param string $string
* @param array &$results
* @param int $increment
* @return void
*/
protected function split($string, &$results, $increment = 1)
{
$string = $this->text->cleanString($string);
$words = $this->text->splitWords($string);
foreach ($words as $word) {
if ($this->text->strlen($word) >= $this->text->getGram() && !is_numeric($word) && $this->text->strlen($word) <= 10) {
$word = $this->text->strtolower($word);
if (!isset($results[$word])) {
$results[$word] = $increment;
} else {
$results[$word] += $increment;
}
}
}
}
/**
* Fallback
*
* @param string $text
* @return string
*/
public function fallback($text)
{
$arQuery = $this->text->splitWords($text);
for ($i = 1; $i < count($arQuery); $i++) {
$combinations = $this->fallbackCombinations($arQuery, $i);
foreach ($combinations as $combination) {
$newQuery = $text;
foreach ($combination as $word) {
$newQuery = str_replace($word, '', $newQuery);
$cntResults = $this->getNumResults($newQuery);
if ($cntResults > 0) {
$newQuery = preg_replace('/\\s{2,}/', ' ', $newQuery);
return trim($newQuery);
}
}
}
}
return false;
}
/**
* Highlight string
*
* @param string $new
* @param string $old
* @param string $tag
* @return string
*/
public function highlight($new, $old, $tag = 'em')
{
return $this->text->htmlDiff($new, $old, $tag);
}
/**
* Case insensitive version of similarity()
*
* @param string $strA
* @param string $strB
*
* @return int distance from 0 to 100
*/
public function similarity($strA, $strB)
{
return $this->_similarity($this->text->strtolower($strA), $this->text->strtolower($strB));
}
/**
* @param null|string $expected
* @param string $data
* @dataProvider prepareGetTrigramProvider
*/
public function testGetTrigram($expected, $data)
{
$this->assertEquals($expected, $this->model->getTrigram($data));
}