28c08467fd
- added spaces/curly braces - used x($foo, 'bar') instead of isset($foo['bar']) - let's wrap html_entity_encode() somehow Signed-off-by: Roland Haeder <roland@mxchange.org>
224 lines
7.2 KiB
PHP
224 lines
7.2 KiB
PHP
<?php
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require_once 'include/oembed.php';
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require_once 'include/event.php';
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require_once 'library/markdown.php';
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require_once 'include/html2bbcode.php';
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require_once 'include/bbcode.php';
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require_once 'library/html-to-markdown/HTML_To_Markdown.php';
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/**
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* @brief Callback function to replace a Diaspora style mention in a mention for Friendica
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*
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* @param array $match Matching values for the callback
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* @return string Replaced mention
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*/
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function diaspora_mention2bb($match) {
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if ($match[2] == '') {
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return;
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}
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$data = get_contact_details_by_addr($match[2]);
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$name = $match[1];
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if ($name == '') {
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$name = $data['name'];
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}
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return '@[url=' . $data['url'] . ']' . $name . '[/url]';
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}
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/*
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* we don't want to support a bbcode specific markdown interpreter
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* and the markdown library we have is pretty good, but provides HTML output.
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* So we'll use that to convert to HTML, then convert the HTML back to bbcode,
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* and then clean up a few Diaspora specific constructs.
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*/
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function diaspora2bb($s) {
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$s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
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// Handles single newlines
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$s = str_replace("\r\n", "\n", $s);
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$s = str_replace("\n", " \n", $s);
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$s = str_replace("\r", " \n", $s);
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// Replace lonely stars in lines not starting with it with literal stars
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$s = preg_replace('/^([^\*]+)\*([^\*]*)$/im', '$1\*$2', $s);
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// The parser cannot handle paragraphs correctly
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$s = str_replace(array('</p>', '<p>', '<p dir="ltr">'), array('<br>', '<br>', '<br>'), $s);
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// Escaping the hash tags
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$s = preg_replace('/\#([^\s\#])/', '#$1', $s);
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$s = Markdown($s);
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$regexp = "/@\{(?:([^\}]+?); )?([^\} ]+)\}/";
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$s = preg_replace_callback($regexp, 'diaspora_mention2bb', $s);
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$s = str_replace('#', '#', $s);
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$s = html2bbcode($s);
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// protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
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$s = str_replace('♲', html_entity_decode('♲', ENT_QUOTES, 'UTF-8'), $s);
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// Convert everything that looks like a link to a link
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$s = preg_replace('/([^\]=]|^)(https?\:\/\/)([a-zA-Z0-9:\/\-?&;.=_~#%$!+,@]+(?<!,))/ism', '$1[url=$2$3]$2$3[/url]', $s);
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//$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3$4]$2$3$4[/url]',$s);
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$s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism', '[youtube]$2[/youtube]', 'url', $s);
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$s = bb_tag_preg_replace('/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism' , '[youtube]$1[/youtube]', 'url', $s);
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$s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism' , '[vimeo]$2[/vimeo]' , 'url', $s);
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$s = bb_tag_preg_replace('/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism' , '[vimeo]$1[/vimeo]' , 'url', $s);
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// remove duplicate adjacent code tags
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$s = preg_replace('/(\[code\])+(.*?)(\[\/code\])+/ism', '[code]$2[/code]', $s);
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// Don't show link to full picture (until it is fixed)
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$s = scale_external_images($s, false);
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return $s;
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}
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/**
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* @brief Callback function to replace a Friendica style mention in a mention for Diaspora
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*
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* @param array $match Matching values for the callback
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* @return string Replaced mention
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*/
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function diaspora_mentions($match) {
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$contact = get_contact_details_by_url($match[3]);
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if (!x($contact, 'addr')) {
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$contact = Probe::uri($match[3]);
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}
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if (!x($contact, 'addr')) {
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return $match[0];
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}
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$mention = '@{' . $match[2] . '; ' . $contact['addr'] . '}';
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return $mention;
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}
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function bb2diaspora($Text, $preserve_nl = false, $fordiaspora = true) {
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$a = get_app();
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$OriginalText = $Text;
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// Since Diaspora is creating a summary for links, this function removes them before posting
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if ($fordiaspora) {
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$Text = bb_remove_share_information($Text);
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}
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/**
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* Transform #tags, strip off the [url] and replace spaces with underscore
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*/
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$URLSearchString = "^\[\]";
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$Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i", create_function('$match',
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'return \'#\'. str_replace(\' \', \'_\', $match[2]);'
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), $Text);
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// Converting images with size parameters to simple images. Markdown doesn't know it.
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$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
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// Convert it to HTML - don't try oembed
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if ($fordiaspora) {
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$Text = bbcode($Text, $preserve_nl, false, 3);
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// Add all tags that maybe were removed
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if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", $OriginalText, $tags)) {
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$tagline = "";
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foreach ($tags[2] as $tag) {
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$tag = html_entity_decode($tag, ENT_QUOTES, 'UTF-8');
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if (!strpos(html_entity_decode($Text, ENT_QUOTES, 'UTF-8'), "#" . $tag)) {
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$tagline .= "#" . $tag . " ";
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}
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}
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$Text = $Text." ".$tagline;
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}
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} else {
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$Text = bbcode($Text, $preserve_nl, false, 4);
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}
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// mask some special HTML chars from conversation to markdown
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$Text = str_replace(array('<','>','&'),array('&_lt_;','&_gt_;','&_amp_;'),$Text);
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// If a link is followed by a quote then there should be a newline before it
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// Maybe we should make this newline at every time before a quote.
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$Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
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$stamp1 = microtime(true);
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// Now convert HTML to Markdown
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$Text = new HTML_To_Markdown($Text);
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// unmask the special chars back to HTML
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$Text = str_replace(array('&_lt_;','&_gt_;','&_amp_;'),array('<','>','&'),$Text);
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$a->save_timestamp($stamp1, "parser");
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// Libertree has a problem with escaped hashtags.
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$Text = str_replace(array('\#'), array('#'), $Text);
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// Remove any leading or trailing whitespace, as this will mess up
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// the Diaspora signature verification and cause the item to disappear
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$Text = trim($Text);
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if ($fordiaspora) {
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$URLSearchString = "^\[\]";
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$Text = preg_replace_callback("/([@]\[(.*?)\])\(([$URLSearchString]*?)\)/ism", 'diaspora_mentions', $Text);
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}
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call_hooks('bb2diaspora',$Text);
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return $Text;
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}
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function unescape_underscores_in_links($m) {
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$y = str_replace('\\_','_', $m[2]);
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return '[' . $m[1] . '](' . $y . ')';
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}
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function format_event_diaspora($ev) {
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if (! ((is_array($ev)) && count($ev))) {
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return '';
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}
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$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
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$o = 'Friendica event notification:' . "\n";
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$o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
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$o .= t('Starts:') . ' ' . '['
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. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
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$ev['start'] , $bd_format ))
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: day_translate(datetime_convert('UTC', 'UTC',
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$ev['start'] , $bd_format)))
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. '](' . App::get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
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if (! $ev['nofinish']) {
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$o .= t('Finishes:') . ' ' . '['
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. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
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$ev['finish'] , $bd_format ))
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: day_translate(datetime_convert('UTC', 'UTC',
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$ev['finish'] , $bd_format )))
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. '](' . App::get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
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}
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if (strlen($ev['location'])) {
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$o .= t('Location:') . bb2diaspora($ev['location'])
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. "\n";
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}
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$o .= "\n";
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return $o;
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}
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