diff options
Diffstat (limited to 'include/html2plain.php')
| -rw-r--r-- | include/html2plain.php | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/include/html2plain.php b/include/html2plain.php new file mode 100644 index 000000000..2a4cf6639 --- /dev/null +++ b/include/html2plain.php @@ -0,0 +1,180 @@ +<?php +require_once "html2bbcode.php"; + +function breaklines($line, $level) +{ + $wraplen = 75-$level; + + $newlines = array(); + + do { + $oldline = $line; + + $subline = substr($line, 0, $wraplen); + + $pos = strrpos($subline, ' '); + + if ($pos == 0) + $pos = strpos($line, ' '); + + if (($pos > 0) and strlen($line) > $wraplen) { + $newline = trim(substr($line, 0, $pos)); + if ($level > 0) + $newline = str_repeat(">", $level).' '.$newline; + + $newlines[] = $newline." "; + $line = substr($line, $pos+1); + } + + } while ((strlen($line) > $wraplen) and !($oldline == $line)); + + if ($level > 0) + $line = str_repeat(">", $level).' '.$line; + + $newlines[] = $line; + + + return(implode($newlines, "\n")); +} + +function quotelevel($message) +{ + $lines = explode("\n", $message); + + $newlines = array(); + $level = 0; + foreach($lines as $line) {; + $line = trim($line); + $startquote = false; + while (strpos("*".$line, '[quote]') > 0) { + $level++; + $pos = strpos($line, '[quote]'); + $line = substr($line, 0, $pos).substr($line, $pos+7); + $startquote = true; + } + + $currlevel = $level; + + while (strpos("*".$line, '[/quote]') > 0) { + $level--; + if ($level < 0) + $level = 0; + + $pos = strpos($line, '[/quote]'); + $line = substr($line, 0, $pos).substr($line, $pos+8); + } + + if (!$startquote or ($line != '')) + $newlines[] = breaklines($line, $currlevel); + } + return(implode($newlines, "\n")); +} + +function html2plain($html) +{ + global $lang; + + $message = str_replace("\r", "", $html); + + $doc = new DOMDocument(); + $doc->preserveWhiteSpace = false; + + $message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8"); + + @$doc->loadHTML($message); + + $xpath = new DomXPath($doc); + $list = $xpath->query("//pre"); + foreach ($list as $node) { + $node->nodeValue = str_replace("\n", "\r", $node->nodeValue); + } + + $message = $doc->saveHTML(); + $message = str_replace(array("\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"), array("<", ">", "<br>", " ", ""), $message); + $message = preg_replace('= [\s]*=i', " ", $message); + + // nach <a href="...">...</a> suchen, die ... miteinander vergleichen und bei Gleichheit durch ein einzelnes ... ersetzen. + $pattern = '/<a.*?href="(.*?)".*?>(.*?)<\/a>/is'; + preg_match_all($pattern, $message, $result, PREG_SET_ORDER); + + foreach ($result as $treffer) { + if ($treffer[1] == $treffer[2]) { + $search = '<a href="'.$treffer[1].'" target="_blank">'.$treffer[1].'</a>'; + $message = str_replace($search, $treffer[1], $message); + } + } + @$doc->loadHTML($message); + + node2bbcode($doc, 'html', array(), '', ''); + node2bbcode($doc, 'body', array(), '', ''); + + // MyBB-Auszeichnungen + node2bbcode($doc, 'span', array('style'=>'text-decoration: underline;'), '_', '_'); + node2bbcode($doc, 'span', array('style'=>'font-style: italic;'), '/', '/'); + node2bbcode($doc, 'span', array('style'=>'font-weight: bold;'), '*', '*'); + + node2bbcode($doc, 'strong', array(), '*', '*'); + node2bbcode($doc, 'b', array(), '*', '*'); + node2bbcode($doc, 'i', array(), '/', '/'); + node2bbcode($doc, 'u', array(), '_', '_'); + + node2bbcode($doc, 'blockquote', array(), '[quote]', "[/quote]\n"); + + node2bbcode($doc, 'br', array(), "\n", ''); + + node2bbcode($doc, 'span', array(), "", ""); + node2bbcode($doc, 'pre', array(), "", ""); + node2bbcode($doc, 'div', array(), "\r", "\r"); + node2bbcode($doc, 'p', array(), "\n", "\n"); + + //node2bbcode($doc, 'ul', array(), "\n[list]", "[/list]\n"); + //node2bbcode($doc, 'ol', array(), "\n[list=1]", "[/list]\n"); + node2bbcode($doc, 'li', array(), "\n* ", "\n"); + + node2bbcode($doc, 'hr', array(), str_repeat("-", 70), ""); + + node2bbcode($doc, 'tr', array(), "\n", ""); + node2bbcode($doc, 'td', array(), "\t", ""); + + node2bbcode($doc, 'h1', array(), "\n\n*", "*\n"); + node2bbcode($doc, 'h2', array(), "\n\n*", "*\n"); + node2bbcode($doc, 'h3', array(), "\n\n*", "*\n"); + node2bbcode($doc, 'h4', array(), "\n\n*", "*\n"); + node2bbcode($doc, 'h5', array(), "\n\n*", "*\n"); + node2bbcode($doc, 'h6', array(), "\n\n*", "*\n"); + + node2bbcode($doc, 'a', array('href'=>'/(.+)/'), ' $1', '', true); + node2bbcode($doc, 'img', array('alt'=>'/(.+)/'), '$1', ''); + node2bbcode($doc, 'img', array('title'=>'/(.+)/'), '$1', ''); + node2bbcode($doc, 'img', array(), '', ''); + node2bbcode($doc, 'img', array('src'=>'/(.+)/'), '[img]$1', '[/img]'); + + $message = $doc->saveHTML(); + + $message = str_replace("[img]", "", $message); + $message = str_replace("[/img]", "", $message); + + // was ersetze ich da? + // Irgendein stoerrisches UTF-Zeug + $message = str_replace(chr(194).chr(160), ' ', $message); + + $message = str_replace(" ", " ", $message); + + // Aufeinanderfolgende DIVs + $message = preg_replace('=\r *\r=i', "\n", $message); + $message = str_replace("\r", "\n", $message); + + $message = strip_tags($message); + + $message = html_entity_decode($message, ENT_QUOTES, 'UTF-8'); + + do { + $oldmessage = $message; + $message = str_replace("\n\n\n", "\n\n", $message); + } while ($oldmessage != $message); + + $message = quotelevel(trim($message)); + + return(trim($message)); +} +?> |