95   public function base64Encode($data, $chunk=76, $init_chunk=0, $headers=false, $le="\r\n")  argument
107     if ($headers) $data = $this->quoteChunk($data);
108     else $data = array($data);
110     foreach ($data as $key => $string)
180   public function QPEncode($data, $chunk=76, $init_chunk=0, $headers=false, $le="\r\n")  argument
183     if ($headers) $data = $this->quoteChunk($data);
184     else $data = array($data);
187     foreach ($data as $key => $string)
286   public function encode7Bit($data, $chunk=76, $le="\r\n")  argument
288     return $this->fixLE(wordwrap($data, $chunk-2, $le, 1), $le);
314   public function encode8Bit($data, $chunk=76, $le="\r\n")  argument
316     return $this->fixLE(wordwrap($data, $chunk-2, $le, 1), $le);
344   public function header7BitEncode($data, $chunk=76, $init_chunk=0, $le="\r\n")  argument
346     $data = $this->encode7BitPrintable($data);
350       $data_wrapped = wordwrap($data, $init_chunk, $le);
354       $data = preg_replace("~^[ \t]~D", "", substr($data, strlen($first_line)));
357     $ret .= wordwrap($data, $chunk-2, $le);
365   public function encode7BitPrintable($data)  argument
367     return preg_replace('/[^\x20-\x7E]/', '', $data);
374   public function isUTF8($data)  argument
384     )+%xs', $data);
395   public function is7BitPrintable($data)  argument
397     return (!preg_match('/[^\x20-\x7E]/', $data));
404   public function isHeaderSafe($data)  argument
406     return ($this->is7BitPrintable($data) && strpos($data, ";") === false);
413   public function is7BitAscii($data)  argument
415     return (!preg_match('/[^\x01-\x7F]/', $data));
445   protected function fixLE($data, $le)  argument
447     $data = str_replace(array("\r\n", "\r"), "\n", $data);
448     if ($le != "\n") $data = str_replace("\n", $le, $data);
449     return $data = str_replace($le . ".", $le . "..", $data);