original_string: protected function initializeEscapers()
      {
          $flags = ENT_QUOTES | ENT_SUBSTITUTE;
  
          $this->escapers = [
              'html' =>
                  /**
                   * Runs the PHP function htmlspecialchars on the value passed.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */
                  function ($value) use ($flags) {
                      // Numbers and Boolean values get turned into strings which can cause problems
                      // with type comparisons (e.g. === or is_int() etc).
                      return \is_string($value) ? htmlspecialchars($value, $flags, $this->getCharset(), false) : $value;
                  },
  
              'js' =>
                  /**
                   * A function that escape all non-alphanumeric characters
                   * into their \xHH or \uHHHH representations.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */
                  function ($value) {
                      if ('UTF-8' != $this->getCharset()) {
                          $value = iconv($this->getCharset(), 'UTF-8', $value);
                      }
  
                      $callback = function ($matches) {
                          $char = $matches[0];
  
                          // \xHH
                          if (!isset($char[1])) {
                              return '\\x'.substr('00'.bin2hex($char), -2);
                          }
  
                          // \uHHHH
                          $char = iconv('UTF-8', 'UTF-16BE', $char);
  
                          return '\\u'.substr('0000'.bin2hex($char), -4);
                      };
  
                      if (null === $value = preg_replace_callback('#[^\p{L}\p{N} ]#u', $callback, $value)) {
                          throw new \InvalidArgumentException('The string to escape is not a valid UTF-8 string.');
                      }
  
                      if ('UTF-8' != $this->getCharset()) {
                          $value = iconv('UTF-8', $this->getCharset(), $value);
                      }
  
                      return $value;
                  },
          ];
  
          self::$escaperCache = [];
      }
code: protected function initializeEscapers()
      {
          $flags = ENT_QUOTES | ENT_SUBSTITUTE;
  
          $this->escapers = [
              'html' =>
                  /**
                   * Runs the PHP function htmlspecialchars on the value passed.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */
                  function ($value) use ($flags) {
                      // Numbers and Boolean values get turned into strings which can cause problems
                      // with type comparisons (e.g. === or is_int() etc).
                      return \is_string($value) ? htmlspecialchars($value, $flags, $this->getCharset(), false) : $value;
                  },
  
              'js' =>
                  /**
                   * A function that escape all non-alphanumeric characters
                   * into their \xHH or \uHHHH representations.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */
                  function ($value) {
                      if ('UTF-8' != $this->getCharset()) {
                          $value = iconv($this->getCharset(), 'UTF-8', $value);
                      }
  
                      $callback = function ($matches) {
                          $char = $matches[0];
  
                          // \xHH
                          if (!isset($char[1])) {
                              return '\\x'.substr('00'.bin2hex($char), -2);
                          }
  
                          // \uHHHH
                          $char = iconv('UTF-8', 'UTF-16BE', $char);
  
                          return '\\u'.substr('0000'.bin2hex($char), -4);
                      };
  
                      if (null === $value = preg_replace_callback('#[^\p{L}\p{N} ]#u', $callback, $value)) {
                          throw new \InvalidArgumentException('The string to escape is not a valid UTF-8 string.');
                      }
  
                      if ('UTF-8' != $this->getCharset()) {
                          $value = iconv('UTF-8', $this->getCharset(), $value);
                      }
  
                      return $value;
                  },
          ];
  
          self::$escaperCache = [];
      }
code_tokens: protected function initializeEscapers ( ) { $ flags = ENT_QUOTES | ENT_SUBSTITUTE ; $ this -> escapers = [ 'html' => /**
                   * Runs the PHP function htmlspecialchars on the value passed.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */ function ( $ value ) use ( $ flags ) { // Numbers and Boolean values get turned into strings which can cause problems // with type comparisons (e.g. === or is_int() etc). return \ is_string ( $ value ) ? htmlspecialchars ( $ value , $ flags , $ this -> getCharset ( ) , false ) : $ value ; } , 'js' => /**
                   * A function that escape all non-alphanumeric characters
                   * into their \xHH or \uHHHH representations.
                   *
                   * @param string $value The value to escape
                   *
                   * @return string the escaped value
                   */ function ( $ value ) { if ( 'UTF-8' != $ this -> getCharset ( ) ) { $ value = iconv ( $ this -> getCharset ( ) , 'UTF-8' , $ value ) ; } $ callback = function ( $ matches ) { $ char = $ matches [ 0 ] ; // \xHH if ( ! isset ( $ char [ 1 ] ) ) { return '\\x' . substr ( '00' . bin2hex ( $ char ) , - 2 ) ; } // \uHHHH $ char = iconv ( 'UTF-8' , 'UTF-16BE' , $ char ) ; return '\\u' . substr ( '0000' . bin2hex ( $ char ) , - 4 ) ; } ; if ( null === $ value = preg_replace_callback ( '#[^\p{L}\p{N} ]#u' , $ callback , $ value ) ) { throw new \ InvalidArgumentException ( 'The string to escape is not a valid UTF-8 string.' ) ; } if ( 'UTF-8' != $ this -> getCharset ( ) ) { $ value = iconv ( 'UTF-8' , $ this -> getCharset ( ) , $ value ) ; } return $ value ; } , ] ; self :: $ escaperCache = [ ] ; }
docstring: Initializes the built-in escapers.
  
  Each function specifies a way for applying a transformation to a string
  passed to it. The purpose is for the string to be "escaped" so it is
  suitable for the format it is being displayed in.
  
  For example, the string: "It's required that you enter a username & password.\n"
  If this were to be displayed as HTML it would be sensible to turn the
  ampersand into '&amp;' and the apostrophe into '&aps;'. However if it were
  going to be used as a string in JavaScript to be displayed in an alert box
  it would be right to leave the string as-is, but c-escape the apostrophe and
  the new line.
  
  For each function there is a define to avoid problems with strings being
  incorrectly specified.
docstring_tokens: Initializes the built - in escapers .