html(rtrim($str), true);
}
public static function rewrap($str, $l = 72)
{
$o = new self;
return $o->wrap($str, $l);
}
public static function getSubject($str)
{
while (preg_match('/^re: /msiu', $str)) {
$str = preg_replace('/^re: /msiu', '', $str);
}
return $str;
}
public function html($str, $with_signature = false)
{
$res = '';
$signature = '';
if ($with_signature && preg_match('/^(-- \r?\n.+?)\Z/msu', $str, $m)) {
$m[1] = preg_replace('/^-- \r?\n/msu', '', $m[1]);
$signature = '' . $this->htmlParseBlock($m[1]) . '
';
$str = preg_replace('/^-- \r?\n(.+?)\Z/msu', '', $str);
$str = rtrim($str);
}
foreach ($this->getTockens($str) as $t) {
switch ($t['type']) {
case 'block':
$t['content'] = $this->htmlParseBlock($t['content']);
$res .= '' . $t['content'] . "
\n";
break;
case 'quote':
$res .= "\n" . $this->html($t['content']) . "
\n\n";
break;
}
}
return $res . $signature;
}
public function wrap($str, $l = 72)
{
$str = $this->prepareString($str);
$res = '';
foreach (explode("\n", $str) as $line) {
$sep = "\n";
if (preg_match('/^([>\|]+\s*)/su', $line, $m)) {
$sep .= $m[1];
}
$line = wordwrap($line, $l, $sep, false) . "\n";
$res .= $line;
}
return $res;
}
protected function prepareString($str)
{
return preg_replace('/\r?\n/msu', "\n", $str);
}
protected function getTockens($str)
{
$str = $this->prepareString($str);
$tockens = [];
$type = null;
$id = -1;
foreach (explode("\n", $str) as $line) {
if (preg_match('/^(?:\s*)(?:>|\|)(?:\s?)(.*?)$/su', $line, $m)) {
if ($type != 'quote' && !trim($m[1])) {
continue;
}
if ($type == 'quote') {
$tockens[$id]['content'] .= $m[1] . "\n";
} else {
$id++;
$type = 'quote';
$tockens[$id]['type'] = $type;
$tockens[$id]['content'] = $m[1] . "\n";
}
}
# Empty line
elseif (preg_match('/^\s*$/su', $line)) {
if ($type == 'block') {
$tockens[$id]['content'] .= "\n";
}
}
# Defaults to block
else {
if ($type == 'block') {
$tockens[$id]['content'] .= $line . "\n";
} else {
$id++;
$type = 'block';
$tockens[$id]['type'] = $type;
$tockens[$id]['content'] = $line . "\n";
}
}
}
foreach ($tockens as $i => $t) {
$tockens[$i]['content'] = preg_replace('/\n$/su', '', $t['content']);
}
return $tockens;
}
protected function htmlParseBlock($str)
{
$str = html::escapeHTML($str);
# Transform links
$str = preg_replace_callback($this->url_pattern, [$this, 'htmlUrlHandler'], $str);
# Transform * / _ strings (does not work, may transform links href)
#$str = preg_replace_callback('%([\*_/])([\w\s]+?)([\*_/])%msu',[$this,'htmlFormatHandler'],$str);
return $str;
}
protected function htmlUrlHandler($m)
{
$url = $m[1] . ':' . html::decodeEntities($m[2] . $m[3]);
$content = $url;
$title = '';
if (strlen($url) > 42) {
$content = substr($url, 0, 42) . '...';
$title = ' title="' . html::escapeHTML($url) . '"';
}
return '' . html::escapeHTML($content) . '' . $m[4];
}
protected function htmlFormatHandler($m)
{
switch ($m[1]) {
case '*':
return '' . $m[2] . '';
case '/':
return '' . $m[2] . '';
case '_':
return '' . $m[2] . '';
}
}
}