protected function FuzzysearchSearch::split in Fuzzy Search 7

Split token fields into ngrams.

Parameters

array $field: Associative array of field information.

1 call to FuzzysearchSearch::split()

FuzzysearchSearch::preprocessIndexItems in includes/processor_search.inc

Calls processField() for all appropriate fields.

File

includes/processor_search.inc, line 110

Class

FuzzysearchSearch

Processor to set the index and search settings. Requires FuzzySearchService.

Code

protected function split(array &$field) {
  if ($field['type'] == 'tokens') {
    foreach ($field['value'] as $key => $value) {
      $word = '';
      $word = $value['value'];
      $length = drupal_strlen($word);
      if ($length < $this->options['ngram_length']) {
        continue;
      }

      // Cleanse and remove spaces.
      $ngrams = array(
        'ngrams' => array(),
      );
      $word = str_replace(' ', '', fuzzysearch_cleanse($word));
      $ngrams['completeness'] = $length - $this->options['ngram_length'] + 1 == 0 ? 100 : number_format(100 / ($length - $this->options['ngram_length'] + 1), 3);
      $ngrams['comp_min'] = number_format(100 / ($length - $this->options['ngram_length'] + 1 + $this->options['missing_letters']), 3);
      if ($length - $this->options['ngram_length'] + 1 - $this->options['extra_letters'] <= 0) {
        $ngrams['comp_max'] = number_format(100, 3) + 0.001;
      }
      else {
        $ngrams['comp_max'] = number_format(100 / ($length - $this->options['ngram_length'] + 1 - $this->options['extra_letters']), 3) + 0.001;
      }

      // Split word into ngrams.
      for ($i = 0; $i < $length - $this->options['ngram_length'] + 1; $i++) {
        $ngrams['ngrams'][] = drupal_substr($word, $i, $this->options['ngram_length']);
      }
      $field['value'][$key] += $ngrams;
      $i = 9;
    }
  }
}