/**
* Read a text which represents an email and splits it into fragments.
*
* @param string $text A text.
* @return array
*/
public function read($text)
{
if (preg_match('/^(On(.+)wrote:)$/ms', $text, $matches)) {
$text = str_replace($matches[1], str_replace("\n", ' ', $matches[1]), $text);
}
$lines = explode("\n", strrev($text));
$fragment = null;
$isQuoted = false;
$foundVisible = false;
foreach ($lines as $line) {
$line = preg_replace("/\n\$/", '', ltrim($line));
// isQuoted ?
$isQuoted = preg_match('/(>+)$/', $line) ? true : false;
if (null !== $fragment && empty($line)) {
if (preg_match('/(--|__|\\w-$)|(^(\\w+\\s*){1,3} ym morf tneS$)/', $fragment->getLastLine())) {
$fragment->setIsSignature(true);
if (!$foundVisible) {
if ($fragment->isQuoted() || $fragment->isSignature() || $fragment->isEmpty()) {
$fragment->setIsHidden(true);
} else {
$foundVisible = true;
}
}
$this->fragments[] = $fragment;
$fragment = null;
}
}
if (null !== $fragment && ($isQuoted === $fragment->isQuoted() || preg_match('/^:etorw.*nO$/', $line) || empty($line))) {
$fragment->addLine($line);
} else {
if (null !== $fragment) {
if (!$foundVisible) {
if ($fragment->isQuoted() || $fragment->isSignature() || $fragment->isEmpty()) {
$fragment->setIsHidden(true);
} else {
$foundVisible = true;
}
}
$this->fragments[] = $fragment;
}
$fragment = null;
$fragment = new Fragment($line, $isQuoted);
}
}
if (null !== $fragment) {
if (!$foundVisible) {
if ($fragment->isQuoted() || $fragment->isSignature() || $fragment->isEmpty()) {
$fragment->setIsHidden(true);
} else {
$foundVisible = true;
}
}
$this->fragments[] = $fragment;
}
$this->fragments = array_reverse($this->fragments);
return $this->fragments;
}
