public function format(Diff $diff)
{
$messages = new Multiline($diff->getMessages());
$messages->prefix('#');
$lines = new Multiline(array_merge($this->header, $messages->toArray()));
$lines->setEol("\n");
$inOld = false;
$i = 0;
$old = [];
$diffLines = $diff->getDiffLines();
foreach ($diffLines as $line) {
if ($line->isSame()) {
if ($inOld === false) {
$inOld = $i;
}
} elseif ($inOld !== false) {
if ($i - $inOld > 5) {
$old[$inOld] = $i - 1;
}
$inOld = false;
}
++$i;
}
$start = isset($old[0]) ? $old[0] : 0;
$end = count($diffLines);
if ($tmp = array_search($end, $old)) {
$end = $tmp;
}
$newChunk = true;
for ($i = $start; $i < $end; ++$i) {
if (isset($old[$i])) {
$lines->add('');
$newChunk = true;
$i = $old[$i];
}
if ($newChunk) {
if ($this->showNonDiffLines === true) {
$lines->add('@@ @@');
}
$newChunk = false;
}
if ($diffLines[$i]->isAddition()) {
$lines->add('+' . $diffLines[$i]->getText());
} elseif ($diffLines[$i]->isRemoval()) {
$lines->add('-' . $diffLines[$i]->getText());
} elseif ($this->showNonDiffLines === true) {
$lines->add(' ' . $diffLines[$i]->getText());
}
}
$lines->add('');
return (string) $lines;
}
/**
* @param \nochso\Omni\Multiline $lines
*
* @return string
*/
private function extractTags(Multiline $lines)
{
$tags = new Multiline(array_slice($lines->toArray(), $this->position));
$tags->setEol((string) $lines->getEol());
return (string) $tags;
}