/**
* {@inheritdoc}
*/
public function cleanAlias($alias)
{
if (!isset($this->aliasMaxLength)) {
$config = $this->configFactory->get('pathauto.settings');
$this->aliasMaxLength = min($config->get('max_length'), $this->aliasStorageHelper->getAliasSchemaMaxLength());
}
$output = $alias;
// Trim duplicate, leading, and trailing separators. Do this before cleaning
// backslashes since a pattern like "[token1]/[token2]-[token3]/[token4]"
// could end up like "value1/-/value2" and if backslashes were cleaned first
// this would result in a duplicate blackslash.
$output = $this->getCleanSeparators($output);
// Trim duplicate, leading, and trailing backslashes.
$output = $this->getCleanSeparators($output, '/');
// Shorten to a logical place based on word boundaries.
$output = Unicode::truncate($output, $this->aliasMaxLength, TRUE);
return $output;
}
/**
* {@inheritdoc}
*/
public function cleanString($string, array $options = array())
{
if (empty($this->cleanStringCache)) {
// Generate and cache variables used in this method.
$config = $this->configFactory->get('pathauto.settings');
$this->cleanStringCache = array('separator' => $config->get('separator'), 'strings' => array(), 'transliterate' => $config->get('transliterate'), 'punctuation' => array(), 'reduce_ascii' => (bool) $config->get('reduce_ascii'), 'ignore_words_regex' => FALSE, 'lowercase' => (bool) $config->get('case'), 'maxlength' => min($config->get('max_component_length'), $this->aliasStorageHelper->getAliasSchemaMaxLength()));
// Generate and cache the punctuation replacements for strtr().
$punctuation = $this->getPunctuationCharacters();
foreach ($punctuation as $name => $details) {
$action = $config->get('punctuation.' . $name);
switch ($action) {
case PathautoManagerInterface::PUNCTUATION_REMOVE:
$cache['punctuation'][$details['value']] = '';
$this->cleanStringCache;
case PathautoManagerInterface::PUNCTUATION_REPLACE:
$this->cleanStringCache['punctuation'][$details['value']] = $this->cleanStringCache['separator'];
break;
case PathautoManagerInterface::PUNCTUATION_DO_NOTHING:
// Literally do nothing.
break;
}
}
// Generate and cache the ignored words regular expression.
$ignore_words = $config->get('ignore_words');
$ignore_words_regex = preg_replace(array('/^[,\\s]+|[,\\s]+$/', '/[,\\s]+/'), array('', '\\b|\\b'), $ignore_words);
if ($ignore_words_regex) {
$this->cleanStringCache['ignore_words_regex'] = '\\b' . $ignore_words_regex . '\\b';
if (function_exists('mb_eregi_replace')) {
mb_regex_encoding('UTF-8');
$this->cleanStringCache['ignore_words_callback'] = 'mb_eregi_replace';
} else {
$this->cleanStringCache['ignore_words_callback'] = 'preg_replace';
$this->cleanStringCache['ignore_words_regex'] = '/' . $this->cleanStringCache['ignore_words_regex'] . '/i';
}
}
}
// Empty strings do not need any processing.
if ($string === '' || $string === NULL) {
return '';
}
$langcode = NULL;
if (!empty($options['language'])) {
$langcode = $options['language']->getId();
} elseif (!empty($options['langcode'])) {
$langcode = $options['langcode'];
}
// Check if the string has already been processed, and if so return the
// cached result.
if (isset($this->cleanStringCache['strings'][$langcode][(string) $string])) {
return $this->cleanStringCache['strings'][$langcode][(string) $string];
}
// Remove all HTML tags from the string.
$output = Html::decodeEntities($string);
$output = PlainTextOutput::renderFromHtml($output);
// Optionally transliterate.
if ($this->cleanStringCache['transliterate']) {
// If the reduce strings to letters and numbers is enabled, don't bother
// replacing unknown characters with a question mark. Use an empty string
// instead.
$output = $this->transliteration->transliterate($output, $langcode, $this->cleanStringCache['reduce_ascii'] ? '' : '?');
}
// Replace or drop punctuation based on user settings.
$output = strtr($output, $this->cleanStringCache['punctuation']);
// Reduce strings to letters and numbers.
if ($this->cleanStringCache['reduce_ascii']) {
$output = preg_replace('/[^a-zA-Z0-9\\/]+/', $this->cleanStringCache['separator'], $output);
}
// Get rid of words that are on the ignore list.
if ($this->cleanStringCache['ignore_words_regex']) {
$words_removed = $this->cleanStringCache['ignore_words_callback']($this->cleanStringCache['ignore_words_regex'], '', $output);
if (Unicode::strlen(trim($words_removed)) > 0) {
$output = $words_removed;
}
}
// Always replace whitespace with the separator.
$output = preg_replace('/\\s+/', $this->cleanStringCache['separator'], $output);
// Trim duplicates and remove trailing and leading separators.
$output = $this->getCleanSeparators($this->getCleanSeparators($output, $this->cleanStringCache['separator']));
// Optionally convert to lower case.
if ($this->cleanStringCache['lowercase']) {
$output = Unicode::strtolower($output);
}
// Shorten to a logical place based on word boundaries.
$output = Unicode::truncate($output, $this->cleanStringCache['maxlength'], TRUE);
// Cache this result in the static array.
$this->cleanStringCache['strings'][$langcode][(string) $string] = $output;
return $output;
}
