source)) {
return false;
}
$source = $r->source;
// Trim empty lines from the start and end of the source
foreach ($source as $linenum => $line) {
if (\trim($line) || $linenum === $r->line) {
break;
}
unset($source[$linenum]);
}
foreach (\array_reverse($source, true) as $linenum => $line) {
if (\trim($line) || $linenum === $r->line) {
break;
}
unset($source[$linenum]);
}
$start = '';
$highlight = '';
$end = '';
foreach ($source as $linenum => $line) {
if ($linenum < $r->line) {
$start .= $line."\n";
} elseif ($linenum === $r->line) {
$highlight = ''.$this->renderer->escape($line).'
';
} else {
$end .= $line."\n";
}
}
$output = $this->renderer->escape($start).$highlight.$this->renderer->escape(\substr($end, 0, -1));
if ($output) {
\reset($source);
$marker = '@@ '.((int) \key($source)).','.\count($source).' @@';
return ''.$output.'
';
}
}
}