cl/content/pages/buscar.php.md

Author: Jorge Maldonado Ventura Date: 2017-04-22 20:38 Modified: 2018-01-11 16:38 Save_as: buscar.php Status: hidden Title: Resultados

$DESCRIPTION_LENGTH = 25; $HALF_DESCRIPTION_LENGTH = floor($DESCRIPTION_LENGTH / 2);

$web_content = json_decode(file_get_contents('tipuesearch_content.json'), true); $stop_words_ignored = false;

if (isset($_GET['q'])) {

$search_str = trim($_REQUEST['q']);

$keywords = explode(' ', $search_str);
$keywords_temp = '';
foreach ($keywords as $keyword) {
    $is_stop_word = false;
    foreach ($STOP_WORDS as $stop_word) {
        if ($keyword == $stop_word) {
            $is_stop_word = true;
            $stop_words_ignored = true;
            break;
        }
    }
    if (! $is_stop_word) {
        $keywords_temp .= "{$keyword} ";
    }
}

$keywords = trim($keywords_temp);
$keywords = explode(' ', $keywords);
$found_results = [];

foreach ($web_content["pages"] as $page) {
    $score = 0;
    $page['text'] = htmlentities($page['text']);

    foreach ($keywords as $word) {
        if (preg_match("/$word/i", $page['url'])) {
            $score += 35;
        }
        if (preg_match("/$word/i", $page['title'])) {
            $score += 35;
        }
        if (preg_match("/$word/i", $page['tags'])) {
            $score += 30;
        }
        // It replaces uppercase matches with lowercase matches, but it's fine for now.
        if ($stop_words_ignored == 1) {
            $page['text'] = preg_replace("/$word/i", $word, $page['text'], -1, $match_count);
        } else {
            $page['text'] = preg_replace("/$word/i", '<span class="tipue_search_content_bold highlighted">' . $word . '</span>', $page['text'], -1, $match_count);
        }
        if ($match_count > 0) {
            $score += 10 * $match_count;
        }
    }
    if ($score != 0) {
        $found_results[] = ['score' => $score, 'title' => $page['title'], 'url' => $page['url'], 'text' => $page['text']];
    }
}

/**
 * Compare results score.
 */
function comp_result_score($a, $b) {
    if ($a['score'] == $b['score']) {
        return 0;
    }
    return ($a['score'] > $b['score']) ? -1 : 1;
}
    if ($stop_words_ignored) {
        printf('<div id="tipue_search_warning">%s</div>', 'Las palabras comunes se ignoran en gran parte');
    }

$found_results_count = count($found_results);
if ($found_results_count > 0) {
    usort($found_results, 'comp_result_score');
    if ($found_results_count == 1) {
        $found_results_count_str = '1 resultado';
    } else {
        $found_results_count_str = $found_results_count . ' resultados';
    }
} else if ($found_results_count == 0) {
    $found_results_count_str = '';
    printf('<div id="tipue_search_warning">%s</div>', 'No se ha encontrado nada');
}

printf('<div id="tipue_search_results_count">%s</div>', $found_results_count_str);

foreach ($found_results as $found_result) {
    printf('<div class="tipue_search_content_title"><a class="is-cyan" href="%s">%s</a></div>', $found_result['url'], $found_result['title']);
    printf('<div class="tipue_search_content_url"><a href="%s">%s</a></div>', $found_result['url'], $found_result['url']);

    $description_words = explode(' ', $found_result['text']);
    $description_words_count = count($description_words);
    $first_match = false;
    for ($i = 0; $i < $description_words_count; $i++) {
        if ($description_words[$i] == '<span>') {
            $first_match = $i;
            break;
        }
    }
    if ($first_match !== false) {
        echo '<div class="tipue_search_content_text">';
        if ($first_match - 12 <= 0) {
            for ($i = 0; $i < $DESCRIPTION_LENGTH; $i++) {
                echo $description_words[$i] . ' ';
            }
            echo '...';
        } else if($first_match + 12 >= $description_words_count) {
            echo '...';
            for ($i = $first_match - 12; $i < $description_words_count; $i++) {
                echo ' ' . $description_words[$i];
            }
        }
        else {
            echo '...';
            for ($i = $first_match - 12; $i <= $first_match + 12; $i++) {
                echo $description_words[$i] . ' ';
            }
            echo '...';
        }
        echo '</div>';
    } elseif ( $description_words_count === 1 ) {
        printf('<div class="tipue_search_content_text"><p>%s</p></div>', 'No hay palabras en el artículo');
        break;
    } else {
        echo '<div class="tipue_search_content_text">';
        for ($i = 0; $i < $DESCRIPTION_LENGTH; $i++) {
            echo $description_words[$i] . ' ';
        }
        if ($description_words_count > $DESCRIPTION_LENGTH) {
            echo '...';
        }
        echo '</div>';
    }
}

} else { printf('

%s

', 'Aún no has buscado'); } ?>