public static function AutoUsernameSettingsForm::autoUsernameCleanSeparators in Automatic User Names 8

Trims duplicate, leading, and trailing separators from a string.

Parameters

string $string: The string to clean separators from.

string $separator: The separator to use when cleaning.

Return value

mixed The cleaned version of the string.

See also

autoUsernameCleanSeparators()

1 call to AutoUsernameSettingsForm::autoUsernameCleanSeparators()

AutoUsernameSettingsForm::autoUsernameCleanstring in src/Form/AutoUsernameSettingsForm.php

Clean up a string segment to be used in a username.

File

src/Form/AutoUsernameSettingsForm.php, line 623

Class

AutoUsernameSettingsForm

Class AutoUsernameSettingsForm.

Namespace

Drupal\auto_username\Form

Code

public static function autoUsernameCleanSeparators($string, $separator = NULL) {
  static $default_separator;
  if (!isset($separator)) {
    if (!isset($default_separator)) {
      $default_separator = \Drupal::state()
        ->get('aun_separator', '-');
    }
    $separator = $default_separator;
  }
  $output = $string;

  // Clean duplicate or trailing separators.
  if (strlen($separator)) {

    // Escape the separator.
    $seppattern = preg_quote($separator, '/');

    // Trim any leading or trailing separators.
    $output = preg_replace("/^{$seppattern}+|{$seppattern}+\$/", '', $output);

    // Replace trailing separators around slashes.
    if ($separator !== '/') {
      $output = preg_replace("/{$seppattern}+\\/|\\/{$seppattern}+/", "/", $output);
    }

    // Replace multiple separators with a single one.
    $output = preg_replace("/{$seppattern}+/", $separator, $output);
  }
  return $output;
}