/**
* Default previewer for plugins with no custom preview.
*
* @param GedcomRecord $record
*
* @return string
*/
public function getActionPreview(GedcomRecord $record)
{
$old_lines = preg_split('/[\\n]+/', $record->getGedcom());
$new_lines = preg_split('/[\\n]+/', $this->updateRecord($record->getXref(), $record->getGedcom()));
// Find matching lines using longest-common-subsequence algorithm.
$lcs = self::longestCommonSubsequence($old_lines, $new_lines, 0, count($old_lines) - 1, 0, count($new_lines) - 1);
$diff_lines = array();
$last_old = -1;
$last_new = -1;
while ($lcs) {
list($old, $new) = array_shift($lcs);
while ($last_old < $old - 1) {
$diff_lines[] = self::decorateDeletedText($old_lines[++$last_old]);
}
while ($last_new < $new - 1) {
$diff_lines[] = self::decorateInsertedText($new_lines[++$last_new]);
}
$diff_lines[] = $new_lines[$new];
$last_old = $old;
$last_new = $new;
}
while ($last_old < count($old_lines) - 1) {
$diff_lines[] = self::decorateDeletedText($old_lines[++$last_old]);
}
while ($last_new < count($new_lines) - 1) {
$diff_lines[] = self::decorateInsertedText($new_lines[++$last_new]);
}
return '<pre class="gedcom-data">' . self::createEditLinks(implode("\n", $diff_lines)) . '</pre>';
}
/**
* Inserts a clipping into the clipping cart
*
* @param GedcomRecord $record
*/
public function addClipping(GedcomRecord $record)
{
if ($record->canShowName()) {
$this->cart[$record->getTree()->getTreeId()][$record->getXref()] = true;
// Add directly linked records
preg_match_all('/\\n\\d (?:OBJE|NOTE|SOUR|REPO) @(' . WT_REGEX_XREF . ')@/', $record->getGedcom(), $matches);
foreach ($matches[1] as $match) {
$this->cart[$record->getTree()->getTreeId()][$match] = true;
}
}
}
/**
* Default previewer for plugins with no custom preview.
*
* @param GedcomRecord $record
*
* @return string
*/
public function getActionPreview(GedcomRecord $record)
{
$old_lines = preg_split('/[\\n]+/', $record->getGedcom());
$new_lines = preg_split('/[\\n]+/', $this->updateRecord($record->getXref(), $record->getGedcom()));
$algorithm = new MyersDiff();
$differences = $algorithm->calculate($old_lines, $new_lines);
$diff_lines = array();
foreach ($differences as $difference) {
switch ($difference[1]) {
case MyersDiff::DELETE:
$diff_lines[] = self::decorateDeletedText($difference[0]);
break;
case MyersDiff::INSERT:
$diff_lines[] = self::decorateInsertedText($difference[0]);
break;
default:
$diff_lines[] = $difference[0];
}
}
return '<pre class="gedcom-data">' . self::createEditLinks(implode("\n", $diff_lines)) . '</pre>';
}
