{
const ENCODING = 'UTF-8';
+ protected $htmlFuncFlags;
+
/**
* Contains the HTML content to convert.
*
protected $search = array(
"/\r/", // Non-legal carriage return
"/[\n\t]+/", // Newlines and tabs
- '/<head[^>]*>.*?<\/head>/i', // <head>
- '/<script[^>]*>.*?<\/script>/i', // <script>s -- which strip_tags supposedly has problems with
- '/<style[^>]*>.*?<\/style>/i', // <style>s -- which strip_tags supposedly has problems with
- '/<p[^>]*>/i', // <P>
- '/<br[^>]*>/i', // <br>
- '/<i[^>]*>(.*?)<\/i>/i', // <i>
- '/<em[^>]*>(.*?)<\/em>/i', // <em>
- '/(<ul[^>]*>|<\/ul>)/i', // <ul> and </ul>
- '/(<ol[^>]*>|<\/ol>)/i', // <ol> and </ol>
- '/(<dl[^>]*>|<\/dl>)/i', // <dl> and </dl>
- '/<li[^>]*>(.*?)<\/li>/i', // <li> and </li>
- '/<dd[^>]*>(.*?)<\/dd>/i', // <dd> and </dd>
- '/<dt[^>]*>(.*?)<\/dt>/i', // <dt> and </dt>
- '/<li[^>]*>/i', // <li>
- '/<hr[^>]*>/i', // <hr>
- '/<div[^>]*>/i', // <div>
- '/(<table[^>]*>|<\/table>)/i', // <table> and </table>
- '/(<tr[^>]*>|<\/tr>)/i', // <tr> and </tr>
- '/<td[^>]*>(.*?)<\/td>/i', // <td> and </td>
+ '/<head\b[^>]*>.*?<\/head>/i', // <head>
+ '/<script\b[^>]*>.*?<\/script>/i', // <script>s -- which strip_tags supposedly has problems with
+ '/<style\b[^>]*>.*?<\/style>/i', // <style>s -- which strip_tags supposedly has problems with
+ '/<i\b[^>]*>(.*?)<\/i>/i', // <i>
+ '/<em\b[^>]*>(.*?)<\/em>/i', // <em>
+ '/(<ul\b[^>]*>|<\/ul>)/i', // <ul> and </ul>
+ '/(<ol\b[^>]*>|<\/ol>)/i', // <ol> and </ol>
+ '/(<dl\b[^>]*>|<\/dl>)/i', // <dl> and </dl>
+ '/<li\b[^>]*>(.*?)<\/li>/i', // <li> and </li>
+ '/<dd\b[^>]*>(.*?)<\/dd>/i', // <dd> and </dd>
+ '/<dt\b[^>]*>(.*?)<\/dt>/i', // <dt> and </dt>
+ '/<li\b[^>]*>/i', // <li>
+ '/<hr\b[^>]*>/i', // <hr>
+ '/<div\b[^>]*>/i', // <div>
+ '/(<table\b[^>]*>|<\/table>)/i', // <table> and </table>
+ '/(<tr\b[^>]*>|<\/tr>)/i', // <tr> and </tr>
+ '/<td\b[^>]*>(.*?)<\/td>/i', // <td> and </td>
'/<span class="_html2text_ignore">.+?<\/span>/i', // <span class="_html2text_ignore">...</span>
- '/<(img)
[^>]*alt=\"([^>"]+)\"[^>]*>/i', // <img> with alt tag
+ '/<(img)
\b[^>]*alt=\"([^>"]+)\"[^>]*>/i', // <img> with alt tag
);
/**
'', // <head>
'', // <script>s -- which strip_tags supposedly has problems with
'', // <style>s -- which strip_tags supposedly has problems with
- "\n\n", // <P>
- "\n", // <br>
'_\\1_', // <i>
'_\\1_', // <em>
"\n\n", // <ul> and </ul>
*/
protected $callbackSearch = array(
'/<(h)[123456]( [^>]*)?>(.*?)<\/h[123456]>/i', // h1 - h6
+ '/[ ]*<(p)( [^>]*)?>(.*?)<\/p>[ ]*/si', // <p> with surrounding whitespace.
+ '/<(br)[^>]*>[ ]*/i', // <br> with leading whitespace after the newline.
'/<(b)( [^>]*)?>(.*?)<\/b>/i', // <b>
'/<(strong)( [^>]*)?>(.*?)<\/strong>/i', // <strong>
'/<(th)( [^>]*)?>(.*?)<\/th>/i', // <th> and </th>
// 'inline' (show links inline)
// 'nextline' (show links on the next line)
// 'table' (if a table of link URLs should be listed after the text.
+ // 'bbcode' (show links as bbcode)
'width' => 70, // Maximum width of the formatted text, in columns.
// Set this value to 0 (or less) to ignore word wrapping
$this->html = $html;
$this->options = array_merge($this->options, $options);
+ $this->htmlFuncFlags = (PHP_VERSION_ID < 50400)
+ ? ENT_COMPAT
+ : ENT_COMPAT | ENT_HTML5;
}
/**
}
protected function convert()
+ {
+ $origEncoding = mb_internal_encoding();
+ mb_internal_encoding(self::ENCODING);
+
+ $this->doConvert();
+
+ mb_internal_encoding($origEncoding);
+ }
+
+ protected function doConvert()
{
$this->linkList = array();
$text = preg_replace_callback($this->callbackSearch, array($this, 'pregCallback'), $text);
$text = strip_tags($text);
$text = preg_replace($this->entSearch, $this->entReplace, $text);
- $text = html_entity_decode($text, ENT_QUOTES, self::ENCODING);
+ $text = html_entity_decode($text, $this->htmlFuncFlags, self::ENCODING);
// Remove unknown/unhandled entities (this cannot be done in search-and-replace block)
$text = preg_replace('/&([a-zA-Z0-9]{2,6}|#[0-9]{2,4});/', '', $text);
$url = $link;
} else {
$url = $this->baseurl;
- if (substr($link, 0, 1) != '/') {
+ if (mb_substr($link, 0, 1) != '/') {
$url .= '/';
}
$url .= $link;
return $display . ' [' . ($index + 1) . ']';
} elseif ($linkMethod == 'nextline') {
return $display . "\n[" . $url . ']';
+ } elseif ($linkMethod == 'bbcode') {
+ return sprintf('[url=%s]%s[/url]', $url, $display);
} else { // link_method defaults to inline
return $display . ' [' . $url . ']';
}
{
// get the content of PRE element
while (preg_match('/<pre[^>]*>(.*)<\/pre>/ismU', $text, $matches)) {
- $this->preContent = $matches[1];
+ // Replace br tags with newlines to prevent the search-and-replace callback from killing whitespace
+ $this->preContent = preg_replace('/(<br\b[^>]*>)/i', "\n", $matches[1]);
// Run our defined tags search-and-replace with callback
$this->preContent = preg_replace_callback(
protected function convertBlockquotes(&$text)
{
if (preg_match_all('/<\/*blockquote[^>]*>/i', $text, $matches, PREG_OFFSET_CAPTURE)) {
+ $originalText = $text;
$start = 0;
$taglen = 0;
$level = 0;
$diff = 0;
foreach ($matches[0] as $m) {
+ $m[1] = mb_strlen(substr($originalText, 0, $m[1]));
if ($m[0][0] == '<' && $m[0][1] == '/') {
$level--;
if ($level < 0) {
$end = $m[1];
$len = $end - $taglen - $start;
// Get blockquote content
- $body = substr($text, $start + $taglen - $diff, $len);
+ $body = mb_substr($text, $start + $taglen - $diff, $len);
// Set text width
$pWidth = $this->options['width'];
$this->converter($body);
// Add citation markers and create PRE block
$body = preg_replace('/((^|\n)>*)/', '\\1> ', trim($body));
- $body = '<pre>' . htmlspecialchars($body) . '</pre>';
+ $body = '<pre>' . htmlspecialchars($body, $this->htmlFuncFlags, self::ENCODING) . '</pre>';
// Re-set text width
$this->options['width'] = $pWidth;
// Replace content
- $text = substr($text, 0, $start - $diff)
- . $body . substr($text, $end + strlen($m[0]) - $diff);
+ $text = mb_substr($text, 0, $start - $diff)
+ . $body
+ . mb_substr($text, $end + mb_strlen($m[0]) - $diff);
- $diff = $len + $taglen + strlen($m[0]) - strlen($body);
+ $diff += $len + $taglen + mb_strlen($m[0]) - mb_strlen($body);
unset($body);
}
} else {
if ($level == 0) {
$start = $m[1];
- $taglen = strlen($m[0]);
+ $taglen = mb_strlen($m[0]);
}
$level++;
}
*/
protected function pregCallback($matches)
{
- switch (strtolower($matches[1])) {
+ switch (mb_strtolower($matches[1])) {
+ case 'p':
+ // Replace newlines with spaces.
+ $para = str_replace("\n", " ", $matches[3]);
+
+ // Trim trailing and leading whitespace within the tag.
+ $para = trim($para);
+
+ // Add trailing newlines for this para.
+ return "\n" . $para . "\n";
+ case 'br':
+ return "\n";
case 'b':
case 'strong':
return $this->toupper($matches[3]);
protected function toupper($str)
{
// string can contain HTML tags
- $chunks = preg_split('/(<[^>]*>)/', $str, null, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
+ $chunks = preg_split('/(<[^>]*>)/', $str, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
// convert toupper only the text between HTML tags
foreach ($chunks as $i => $chunk) {
*/
protected function strtoupper($str)
{
- $str = html_entity_decode($str, ENT_COMPAT, self::ENCODING);
-
- if (function_exists('mb_strtoupper')) {
- $str = mb_strtoupper($str, self::ENCODING);
- } else {
- $str = strtoupper($str);
- }
-
- $str = htmlspecialchars($str, ENT_COMPAT, self::ENCODING);
+ $str = html_entity_decode($str, $this->htmlFuncFlags, self::ENCODING);
+ $str = mb_strtoupper($str);
+ $str = htmlspecialchars($str, $this->htmlFuncFlags, self::ENCODING);
return $str;
}
