function edit_get_merged_text($templateid)
{
global $vbphrase;
$templates = fetch_templates_for_merge($templateid);
$new = $templates["new"];
$custom = $templates["custom"];
$origin = $templates["origin"];
require_once (DIR . '/includes/class_merge.php');
$merge = new vB_Text_Merge_Threeway($origin['template_un'], $new['template_un'], $custom['template_un']);
$chunks = $merge->get_chunks();
$text = "";
foreach ($chunks as $chunk)
{
if ($chunk->is_stable())
{
$text .= $chunk->get_text_original();
}
else
{
$chunk_text = $chunk->get_merged_text();
if ($chunk_text === false)
{
$new_title = construct_phrase($vbphrase['merge_title_new'], $new['version']);
$chunk_text = format_conflict_text($chunk->get_text_right(), $chunk->get_text_original(),
$chunk->get_text_left(), $origin['version'], $new['version']);
}
$text .= $chunk_text;
}
}
return $text;
}
/**
* Return regular expression to detect the blocks returned by format_conflict_text
*
* @return string -- value suitable for passing to preg_match as an re
*/
function get_conflict_text_re()
{
//we'll start by grabbing the formatting from format_conflict_text directly
//this should reduce cases were we change the formatting and forget to change the re
$re = format_conflict_text(".*\n", ".*\n", ".*\n", ".*", '.*');
//we don't have a set number of delimeter characters since we try to even up the lines
//in some cases (which can vary based on the version strings). Since we don't have the
//exact version available, we don't know how many got inserted. We'll match any number
//(we use two because we should always have at least that many and it dramatically improves
//performance -- probably because we get an early failure on all of the html tags)
$re = preg_replace('#<+#', '<<+', $re);
$re = preg_replace('#=+#', '==+', $re);
$re = preg_replace('#>+#', '>>+', $re);
//handle variations on newlines.
$re = str_replace("\n", "(?:\r|\n|\r\n)", $re);
//convert the preg format
$re = "#$re#isU";
return $re;
}