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Merge pull request #351 from annando/master

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Massive change in bbcode2markdown
This commit is contained in:
friendica 2012-06-23 05:11:31 -07:00
commit b97c406c82
11 changed files with 2980 additions and 34 deletions
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41
include/bb2diaspora.php
View file

@ -1,10 +1,11 @@
<?php
require_once("include/oembed.php");
require_once('include/event.php');
require_once('library/markdown.php');
require_once('include/html2bbcode.php');
require_once("include/event.php");
require_once("library/markdown.php");
require_once("include/html2bbcode.php");
require_once("include/bbcode.php");
require_once("include/markdownify/markdownify.php");
// we don't want to support a bbcode specific markdown interpreter
// and the markdown library we have is pretty good, but provides HTML output.
@ -85,6 +86,17 @@ function diaspora_ol($s) {
function bb2diaspora($Text,$preserve_nl = false) {
// Convert it to HTML - don't try oembed
$Text = bbcode($Text, $preserve_nl, false);
// Now convert HTML to Markdown
$md = new Markdownify(false, false, false);
$Text = $md->parseString($Text);
// Remove all unconverted tags
$Text = strip_tags($Text);
/*
$ev = bbtoevent($Text);
// Replace any html brackets with HTML Entities to prevent executing HTML or script
@ -94,10 +106,9 @@ function bb2diaspora($Text,$preserve_nl = false) {
$Text = str_replace(">", "&gt;", $Text);
// If we find any event code, turn it into an event.
// After we're finished processing the bbcode we'll
// After we're finished processing the bbcode we'll
// replace all of the event code with a reformatted version.
if($preserve_nl)
$Text = str_replace(array("\n","\r"), array('',''),$Text);
else
@ -106,6 +117,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
// failures
$Text = str_replace("\r", "", $Text);
// Set up the parameters for a URL search string
$URLSearchString = "^\[\]";
// Set up the parameters for a MAIL search string
@ -119,7 +131,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
// new javascript markdown processor to handle links with images as the link "text"
// It is not optimal and may be removed if this ability is restored in the future
$Text = preg_replace("/\[url\=([$URLSearchString]*)\]\[img\](.*?)\[\/img\]\[\/url\]/ism",
$Text = preg_replace("/\[url\=([$URLSearchString]*)\]\[img\](.*?)\[\/img\]\[\/url\]/ism",
'![' . t('image/photo') . '](' . '$2' . ')' . "\n" . '[' . t('link') . '](' . '$1' . ')', $Text);
$Text = preg_replace("/\[bookmark\]([$URLSearchString]*)\[\/bookmark\]/ism", '[$1]($1)', $Text);
@ -136,7 +148,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
// Perform MAIL Search
$Text = preg_replace("(\[mail\]([$MAILSearchString]*)\[/mail\])", '[$1](mailto:$1)', $Text);
$Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '[$2](mailto:$1)', $Text);
$Text = str_replace('*', '\\*', $Text);
$Text = str_replace('_', '\\_', $Text);
@ -186,7 +198,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
$Text = preg_replace("/\[table border=(.*?)\](.*?)\[\/table\]/s", '$2' ,$Text);
// $Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/s", '<table border="0" >$1</table>' ,$Text);
// $Text = str_replace("[*]", "<li>", $Text);
// Check for font change text
@ -202,11 +214,11 @@ function bb2diaspora($Text,$preserve_nl = false) {
// Declare the format for [quote] layout
// $QuoteLayout = '<blockquote>$1</blockquote>';
// $QuoteLayout = '<blockquote>$1</blockquote>';
// Check for [quote] text
$Text = preg_replace("/\[quote\](.*?)\[\/quote\]/is",">$1\n\n", $Text);
$Text = preg_replace("/\[quote=(.*?)\](.*?)\[\/quote\]/is",">$2\n\n", $Text);
// Images
// html5 video and audio
@ -216,7 +228,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
$Text = preg_replace("/\[audio\](.*?)\[\/audio\]/", '$1', $Text);
// $Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
// [img=widthxheight]image source[/img]
// $Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/", '<img src="$3" style="height:{$2}px; width:{$1}px;" >', $Text);
@ -240,7 +252,7 @@ function bb2diaspora($Text,$preserve_nl = false) {
if(x($ev,'desc') && x($ev,'start')) {
$sub = format_event_diaspora($ev);
$Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/is",$sub,$Text);
$Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/is",'',$Text);
$Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/is",'',$Text);
@ -251,11 +263,12 @@ function bb2diaspora($Text,$preserve_nl = false) {
$Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
$Text = preg_replace_callback('/\[(.*?)\]\((.*?)\)/ism','unescape_underscores_in_links',$Text);
*/
// Remove any leading or trailing whitespace, as this will mess up
// the Diaspora signature verification and cause the item to disappear
$Text = trim($Text);
call_hooks('bb2diaspora',$Text);
return $Text;

40
include/bbcode.php
View file

@ -50,7 +50,7 @@ function bb_unspacefy_and_trim($st) {
// BBcode 2 HTML was written by WAY2WEB.net
// extended to work with Mistpark/Friendica - Mike Macgirvin
function bbcode($Text,$preserve_nl = false) {
function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
$a = get_app();
@ -108,10 +108,14 @@ function bbcode($Text,$preserve_nl = false) {
$Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
$Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
if ($tryoembed)
$Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
$Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
$Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
if ($tryoembed)
$Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
$Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
$Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
//$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
@ -250,31 +254,35 @@ function bbcode($Text,$preserve_nl = false) {
$Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
// Try to Oembed
$Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
if ($tryoembed) {
$Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
}
// html5 video and audio
$Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
// Youtube extensions
$Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
if ($tryoembed) {
$Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
$Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
}
$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
$Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="425" height="350" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
$Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
$Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
if ($tryoembed) {
$Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
$Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
}
$Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
$Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);

22
include/diaspora.php
View file

@ -2005,6 +2005,7 @@ function diaspora_share($me,$contact) {
));
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']));
return(diaspora_transmit($owner,$contact,$slap, false));
}
@ -2022,6 +2023,7 @@ function diaspora_unshare($me,$contact) {
));
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey'])));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$me,$contact,$me['prvkey'],$contact['pubkey']));
return(diaspora_transmit($owner,$contact,$slap, false));
@ -2060,13 +2062,21 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
$images[] = $detail;
$body = str_replace($detail['str'],$mtch[1],$body);
}
}
}
*/
// Removal of tags
$body = preg_replace('/#\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', '#$2', $body);
//if(strlen($title))
// $body = "[b]".html_entity_decode($title)."[/b]\n\n".$body;
// convert to markdown
$body = xmlify(html_entity_decode(bb2diaspora($body)));
//$body = bb2diaspora($body);
// Adding the title
if(strlen($title))
$body = xmlify('**' . html_entity_decode($title) . '**' . "\n") . $body;
$body = "## ".html_entity_decode($title)."\n\n".$body;
if($item['attach']) {
$cnt = preg_match_all('/href=\"(.*?)\"(.*?)title=\"(.*?)\"/ism',$item['attach'],$matches,PREG_SET_ORDER);
@ -2096,6 +2106,7 @@ function diaspora_send_status($item,$owner,$contact,$public_batch = false) {
logger('diaspora_send_status: ' . $owner['username'] . ' -> ' . $contact['name'] . ' base message: ' . $msg, LOGGER_DATA);
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
$return_code = diaspora_transmit($owner,$contact,$slap,$public_batch);
@ -2140,6 +2151,7 @@ function diaspora_send_images($item,$owner,$contact,$images,$public_batch = fals
logger('diaspora_send_photo: base message: ' . $msg, LOGGER_DATA);
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
diaspora_transmit($owner,$contact,$slap,$public_batch);
}
@ -2203,6 +2215,7 @@ function diaspora_send_followup($item,$owner,$contact,$public_batch = false) {
logger('diaspora_followup: base message: ' . $msg, LOGGER_DATA);
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
return(diaspora_transmit($owner,$contact,$slap,$public_batch));
}
@ -2309,6 +2322,7 @@ function diaspora_send_relay($item,$owner,$contact,$public_batch = false) {
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
return(diaspora_transmit($owner,$contact,$slap,$public_batch));
@ -2343,6 +2357,7 @@ function diaspora_send_retraction($item,$owner,$contact,$public_batch = false) {
));
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($msg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],$public_batch));
return(diaspora_transmit($owner,$contact,$slap,$public_batch));
}
@ -2403,6 +2418,7 @@ function diaspora_send_mail($item,$owner,$contact) {
logger('diaspora_conversation: ' . print_r($xmsg,true), LOGGER_DATA);
$slap = 'xml=' . urlencode(urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],false)));
//$slap = 'xml=' . urlencode(diaspora_msg_build($xmsg,$owner,$contact,$owner['uprvkey'],$contact['pubkey'],false));
return(diaspora_transmit($owner,$contact,$slap,false));

504
include/markdownify/LICENSE_LGPL.txt Normal file
View file

@ -0,0 +1,504 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
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That's all there is to it!

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Markdownify
===========
* handle non-markdownifiable lists (i.e. `<ul><li id="foobar">asdf</li></ul>`)
* organize methods better (i.e. flushlinebreaks & setlinebreaks close to each other)
* take a look at function names etc.
* is the new (in rev. 93) lastclosedtag property needed?
* word wrapping (some work is done but it's still very buggy)
Markdownify Extra
=================
* handle table alignment with KEEP_HTML=false
* handle tables without headings when KEEP_HTML=false is set
* handle Markdown inside non-markdownable tags
Implementation Thoughts
=======================
* non-markdownifiable lists and markdown inside non-markdownable tags as well as the current
table implementation could be rewritten by using a rollback mechanism.
example:
<ul><li>asdf</li><li id="foobar">asdf</li></ul>
we come to `<ul>`, know that this might fail and create a snapshot of our current parser
we keep on parsing and when we reach `<li id="foobar">` we gotta rollback and keep this
list in HTML format.

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<?php
error_reporting(E_ALL);
if (!empty($_POST['input'])) {
include 'markdownify_extra.php';
if (!isset($_POST['leap'])) {
$leap = MDFY_LINKS_EACH_PARAGRAPH;
} else {
$leap = $_POST['leap'];
}
if (!isset($_POST['keepHTML'])) {
$keephtml = MDFY_KEEPHTML;
} else {
$keephtml = $_POST['keepHTML'];
}
if (!empty($_POST['extra'])) {
$md = new Markdownify_Extra($leap, MDFY_BODYWIDTH, $keephtml);
} else {
$md = new Markdownify($leap, MDFY_BODYWIDTH, $keephtml);
}
if (ini_get('magic_quotes_gpc')) {
$_POST['input'] = stripslashes($_POST['input']);
}
$output = $md->parseString($_POST['input']);
} else {
$_POST['input'] = '';
}
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>HTML to Markdown Converter</title>
</head>
<body>
<?php if (empty($_POST['input'])): ?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<fieldset>
<legend>HTML Input</legend>
<textarea style="width:100%;" cols="85" rows="40" name="input"><?php echo htmlspecialchars($_POST['input'], ENT_NOQUOTES, 'UTF-8'); ?></textarea>
</fieldset>
<label for="extra">Markdownify Extra: <input name="extra" checked="checked" id="extra" type="checkbox" value="1" /></label>
<label for="leap">Links after each block elem: <input name="leap" id="leap" type="checkbox" value="1" /></label>
<label for="keepHTML">keep HTML: <input name="keepHTML" id="keepHTML" type="checkbox" value="1" checked="checked" /></label>
<input type="submit" name="submit" value="submit" />
</form>
<?php else: ?>
<h1 style="text-align:right;"><a href="<?php echo $_SERVER['PHP_SELF']; ?>">BACK</a></h1>
<pre><?php echo htmlspecialchars($output, ENT_NOQUOTES, 'UTF-8'); ?></pre>
<?php endif; ?>
</body>
</html>

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<?php
/**
* Markdownify converts HTML Markup to [Markdown][1] (by [John Gruber][2]. It
* also supports [Markdown Extra][3] by [Michel Fortin][4] via Markdownify_Extra.
*
* It all started as `html2text.php` - a port of [Aaron Swartz'][5] [`html2text.py`][6] - but
* got a long way since. This is far more than a mere port now!
* Starting with version 2.0.0 this is a complete rewrite and cannot be
* compared to Aaron Swatz' `html2text.py` anylonger. I'm now using a HTML parser
* (see `parsehtml.php` which I also wrote) which makes most of the evil
* RegEx magic go away and additionally it gives a much cleaner class
* structure. Also notably is the fact that I now try to prevent regressions by
* utilizing testcases of Michel Fortin's [MDTest][7].
*
* [1]: http://daringfireball.com/projects/markdown
* [2]: http://daringfireball.com/
* [3]: http://www.michelf.com/projects/php-markdown/extra/
* [4]: http://www.michelf.com/
* [5]: http://www.aaronsw.com/
* [6]: http://www.aaronsw.com/2002/html2text/
* [7]: http://article.gmane.org/gmane.text.markdown.general/2540
*
* @version 2.0.0 alpha
* @author Milian Wolff (<mail@milianw.de>, <http://milianw.de>)
* @license LGPL, see LICENSE_LGPL.txt and the summary below
* @copyright (C) 2007 Milian Wolff
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* HTML Parser, see http://sf.net/projects/parseHTML
*/
require_once dirname(__FILE__).'/parsehtml/parsehtml.php';
/**
* default configuration
*/
define('MDFY_LINKS_EACH_PARAGRAPH', false);
define('MDFY_BODYWIDTH', false);
define('MDFY_KEEPHTML', true);
/**
* HTML to Markdown converter class
*/
class Markdownify {
/**
* html parser object
*
* @var parseHTML
*/
var $parser;
/**
* markdown output
*
* @var string
*/
var $output;
/**
* stack with tags which where not converted to html
*
* @var array<string>
*/
var $notConverted = array();
/**
* skip conversion to markdown
*
* @var bool
*/
var $skipConversion = false;
/* options */
/**
* keep html tags which cannot be converted to markdown
*
* @var bool
*/
var $keepHTML = false;
/**
* wrap output, set to 0 to skip wrapping
*
* @var int
*/
var $bodyWidth = 0;
/**
* minimum body width
*
* @var int
*/
var $minBodyWidth = 25;
/**
* display links after each paragraph
*
* @var bool
*/
var $linksAfterEachParagraph = false;
/**
* constructor, set options, setup parser
*
* @param bool $linksAfterEachParagraph wether or not to flush stacked links after each paragraph
* defaults to false
* @param int $bodyWidth wether or not to wrap the output to the given width
* defaults to false
* @param bool $keepHTML wether to keep non markdownable HTML or to discard it
* defaults to true (HTML will be kept)
* @return void
*/
function Markdownify($linksAfterEachParagraph = MDFY_LINKS_EACH_PARAGRAPH, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) {
$this->linksAfterEachParagraph = $linksAfterEachParagraph;
$this->keepHTML = $keepHTML;
if ($bodyWidth > $this->minBodyWidth) {
$this->bodyWidth = intval($bodyWidth);
} else {
$this->bodyWidth = false;
}
$this->parser = new parseHTML;
$this->parser->noTagsInCode = true;
# we don't have to do this every time
$search = array();
$replace = array();
foreach ($this->escapeInText as $s => $r) {
array_push($search, '#(?<!\\\)'.$s.'#U');
array_push($replace, $r);
}
$this->escapeInText = array(
'search' => $search,
'replace' => $replace
);
}
/**
* parse a HTML string
*
* @param string $html
* @return string markdown formatted
*/
function parseString($html) {
$this->parser->html = $html;
$this->parse();
return $this->output;
}
/**
* tags with elements which can be handled by markdown
*
* @var array<string>
*/
var $isMarkdownable = array(
'p' => array(),
'ul' => array(),
'ol' => array(),
'li' => array(),
'br' => array(),
'blockquote' => array(),
'code' => array(),
'pre' => array(),
'a' => array(
'href' => 'required',
'title' => 'optional',
),
'strong' => array(),
'b' => array(),
'em' => array(),
'i' => array(),
'img' => array(
'src' => 'required',
'alt' => 'optional',
'title' => 'optional',
),
'h1' => array(),
'h2' => array(),
'h3' => array(),
'h4' => array(),
'h5' => array(),
'h6' => array(),
'hr' => array(),
);
/**
* html tags to be ignored (contents will be parsed)
*
* @var array<string>
*/
var $ignore = array(
'html',
'body',
);
/**
* html tags to be dropped (contents will not be parsed!)
*
* @var array<string>
*/
var $drop = array(
'script',
'head',
'style',
'form',
'area',
'object',
'param',
'iframe',
);
/**
* Markdown indents which could be wrapped
* @note: use strings in regex format
*
* @var array<string>
*/
var $wrappableIndents = array(
'\* ', # ul
'\d. ', # ol
'\d\d. ', # ol
'> ', # blockquote
'', # p
);
/**
* list of chars which have to be escaped in normal text
* @note: use strings in regex format
*
* @var array
*
* TODO: what's with block chars / sequences at the beginning of a block?
*/
var $escapeInText = array(
'([-*_])([ ]{0,2}\1){2,}' => '\\\\$0|', # hr
'\*\*([^*\s]+)\*\*' => '\*\*$1\*\*', # strong
'\*([^*\s]+)\*' => '\*$1\*', # em
'__(?! |_)(.+)(?!<_| )__' => '\_\_$1\_\_', # em
'_(?! |_)(.+)(?!<_| )_' => '\_$1\_', # em
'`(.+)`' => '\`$1\`', # code
'\[(.+)\](\s*\()' => '\[$1\]$2', # links: [text] (url) => [text\] (url)
'\[(.+)\](\s*)\[(.*)\]' => '\[$1\]$2\[$3\]', # links: [text][id] => [text\][id\]
);
/**
* wether last processed node was a block tag or not
*
* @var bool
*/
var $lastWasBlockTag = false;
/**
* name of last closed tag
*
* @var string
*/
var $lastClosedTag = '';
/**
* iterate through the nodes and decide what we
* shall do with the current node
*
* @param void
* @return void
*/
function parse() {
$this->output = '';
# drop tags
$this->parser->html = preg_replace('#<('.implode('|', $this->drop).')[^>]*>.*</\\1>#sU', '', $this->parser->html);
while ($this->parser->nextNode()) {
switch ($this->parser->nodeType) {
case 'doctype':
break;
case 'pi':
case 'comment':
if ($this->keepHTML) {
$this->flushLinebreaks();
$this->out($this->parser->node);
$this->setLineBreaks(2);
}
# else drop
break;
case 'text':
$this->handleText();
break;
case 'tag':
if (in_array($this->parser->tagName, $this->ignore)) {
break;
}
if ($this->parser->isStartTag) {
$this->flushLinebreaks();
}
if ($this->skipConversion) {
$this->isMarkdownable(); # update notConverted
$this->handleTagToText();
continue;
}
if (!$this->parser->keepWhitespace && $this->parser->isBlockElement && $this->parser->isStartTag) {
$this->parser->html = ltrim($this->parser->html);
}
if ($this->isMarkdownable()) {
if ($this->parser->isBlockElement && $this->parser->isStartTag && !$this->lastWasBlockTag && !empty($this->output)) {
if (!empty($this->buffer)) {
$str =& $this->buffer[count($this->buffer) -1];
} else {
$str =& $this->output;
}
if (substr($str, -strlen($this->indent)-1) != "\n".$this->indent) {
$str .= "\n".$this->indent;
}
}
$func = 'handleTag_'.$this->parser->tagName;
$this->$func();
if ($this->linksAfterEachParagraph && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) {
$this->flushStacked();
}
if (!$this->parser->isStartTag) {
$this->lastClosedTag = $this->parser->tagName;
}
} else {
$this->handleTagToText();
$this->lastClosedTag = '';
}
break;
default:
trigger_error('invalid node type', E_USER_ERROR);
break;
}
$this->lastWasBlockTag = $this->parser->nodeType == 'tag' && $this->parser->isStartTag && $this->parser->isBlockElement;
}
if (!empty($this->buffer)) {
trigger_error('buffer was not flushed, this is a bug. please report!', E_USER_WARNING);
while (!empty($this->buffer)) {
$this->out($this->unbuffer());
}
}
### cleanup
$this->output = rtrim(str_replace('&amp;', '&', str_replace('&lt;', '<', str_replace('&gt;', '>', $this->output))));
# end parsing, flush stacked tags
$this->flushStacked();
$this->stack = array();
}
/**
* check if current tag can be converted to Markdown
*
* @param void
* @return bool
*/
function isMarkdownable() {
if (!isset($this->isMarkdownable[$this->parser->tagName])) {
# simply not markdownable
return false;
}
if ($this->parser->isStartTag) {
$return = true;
if ($this->keepHTML) {
$diff = array_diff(array_keys($this->parser->tagAttributes), array_keys($this->isMarkdownable[$this->parser->tagName]));
if (!empty($diff)) {
# non markdownable attributes given
$return = false;
}
}
if ($return) {
foreach ($this->isMarkdownable[$this->parser->tagName] as $attr => $type) {
if ($type == 'required' && !isset($this->parser->tagAttributes[$attr])) {
# required markdown attribute not given
$return = false;
break;
}
}
}
if (!$return) {
array_push($this->notConverted, $this->parser->tagName.'::'.implode('/', $this->parser->openTags));
}
return $return;
} else {
if (!empty($this->notConverted) && end($this->notConverted) === $this->parser->tagName.'::'.implode('/', $this->parser->openTags)) {
array_pop($this->notConverted);
return false;
}
return true;
}
}
/**
* output all stacked tags
*
* @param void
* @return void
*/
function flushStacked() {
# links
foreach ($this->stack as $tag => $a) {
if (!empty($a)) {
call_user_func(array(&$this, 'flushStacked_'.$tag));
}
}
}
/**
* output link references (e.g. [1]: http://example.com "title");
*
* @param void
* @return void
*/
function flushStacked_a() {
$out = false;
foreach ($this->stack['a'] as $k => $tag) {
if (!isset($tag['unstacked'])) {
if (!$out) {
$out = true;
$this->out("\n\n", true);
} else {
$this->out("\n", true);
}
$this->out(' ['.$tag['linkID'].']: '.$tag['href'].(isset($tag['title']) ? ' "'.$tag['title'].'"' : ''), true);
$tag['unstacked'] = true;
$this->stack['a'][$k] = $tag;
}
}
}
/**
* flush enqued linebreaks
*
* @param void
* @return void
*/
function flushLinebreaks() {
if ($this->lineBreaks && !empty($this->output)) {
$this->out(str_repeat("\n".$this->indent, $this->lineBreaks), true);
}
$this->lineBreaks = 0;
}
/**
* handle non Markdownable tags
*
* @param void
* @return void
*/
function handleTagToText() {
if (!$this->keepHTML) {
if (!$this->parser->isStartTag && $this->parser->isBlockElement) {
$this->setLineBreaks(2);
}
} else {
# dont convert to markdown inside this tag
/** TODO: markdown extra **/
if (!$this->parser->isEmptyTag) {
if ($this->parser->isStartTag) {
if (!$this->skipConversion) {
$this->skipConversion = $this->parser->tagName.'::'.implode('/', $this->parser->openTags);
}
} else {
if ($this->skipConversion == $this->parser->tagName.'::'.implode('/', $this->parser->openTags)) {
$this->skipConversion = false;
}
}
}
if ($this->parser->isBlockElement) {
if ($this->parser->isStartTag) {
if (in_array($this->parent(), array('ins', 'del'))) {
# looks like ins or del are block elements now
$this->out("\n", true);
$this->indent(' ');
}
if ($this->parser->tagName != 'pre') {
$this->out($this->parser->node."\n".$this->indent);
if (!$this->parser->isEmptyTag) {
$this->indent(' ');
} else {
$this->setLineBreaks(1);
}
$this->parser->html = ltrim($this->parser->html);
} else {
# don't indent inside <pre> tags
$this->out($this->parser->node);
static $indent;
$indent = $this->indent;
$this->indent = '';
}
} else {
if (!$this->parser->keepWhitespace) {
$this->output = rtrim($this->output);
}
if ($this->parser->tagName != 'pre') {
$this->indent(' ');
$this->out("\n".$this->indent.$this->parser->node);
} else {
# reset indentation
$this->out($this->parser->node);
static $indent;
$this->indent = $indent;
}
if (in_array($this->parent(), array('ins', 'del'))) {
# ins or del was block element
$this->out("\n");
$this->indent(' ');
}
if ($this->parser->tagName == 'li') {
$this->setLineBreaks(1);
} else {
$this->setLineBreaks(2);
}
}
} else {
$this->out($this->parser->node);
}
if (in_array($this->parser->tagName, array('code', 'pre'))) {
if ($this->parser->isStartTag) {
$this->buffer();
} else {
# add stuff so cleanup just reverses this
$this->out(str_replace('&lt;', '&amp;lt;', str_replace('&gt;', '&amp;gt;', $this->unbuffer())));
}
}
}
}
/**
* handle plain text
*
* @param void
* @return void
*/
function handleText() {
if ($this->hasParent('pre') && strpos($this->parser->node, "\n") !== false) {
$this->parser->node = str_replace("\n", "\n".$this->indent, $this->parser->node);
}
if (!$this->hasParent('code') && !$this->hasParent('pre')) {
# entity decode
$this->parser->node = $this->decode($this->parser->node);
if (!$this->skipConversion) {
# escape some chars in normal Text
$this->parser->node = preg_replace($this->escapeInText['search'], $this->escapeInText['replace'], $this->parser->node);
}
} else {
$this->parser->node = str_replace(array('&quot;', '&apos'), array('"', '\''), $this->parser->node);
}
$this->out($this->parser->node);
$this->lastClosedTag = '';
}
/**
* handle <em> and <i> tags
*
* @param void
* @return void
*/
function handleTag_em() {
$this->out('*', true);
}
function handleTag_i() {
$this->handleTag_em();
}
/**
* handle <strong> and <b> tags
*
* @param void
* @return void
*/
function handleTag_strong() {
$this->out('**', true);
}
function handleTag_b() {
$this->handleTag_strong();
}
/**
* handle <h1> tags
*
* @param void
* @return void
*/
function handleTag_h1() {
$this->handleHeader(1);
}
/**
* handle <h2> tags
*
* @param void
* @return void
*/
function handleTag_h2() {
$this->handleHeader(2);
}
/**
* handle <h3> tags
*
* @param void
* @return void
*/
function handleTag_h3() {
$this->handleHeader(3);
}
/**
* handle <h4> tags
*
* @param void
* @return void
*/
function handleTag_h4() {
$this->handleHeader(4);
}
/**
* handle <h5> tags
*
* @param void
* @return void
*/
function handleTag_h5() {
$this->handleHeader(5);
}
/**
* handle <h6> tags
*
* @param void
* @return void
*/
function handleTag_h6() {
$this->handleHeader(6);
}
/**
* number of line breaks before next inline output
*/
var $lineBreaks = 0;
/**
* handle header tags (<h1> - <h6>)
*
* @param int $level 1-6
* @return void
*/
function handleHeader($level) {
if ($this->parser->isStartTag) {
$this->out(str_repeat('#', $level).' ', true);
} else {
$this->setLineBreaks(2);
}
}
/**
* handle <p> tags
*
* @param void
* @return void
*/
function handleTag_p() {
if (!$this->parser->isStartTag) {
$this->setLineBreaks(2);
}
}
/**
* handle <a> tags
*
* @param void
* @return void
*/
function handleTag_a() {
if ($this->parser->isStartTag) {
$this->buffer();
if (isset($this->parser->tagAttributes['title'])) {
$this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
} else {
$this->parser->tagAttributes['title'] = null;
}
$this->parser->tagAttributes['href'] = $this->decode(trim($this->parser->tagAttributes['href']));
$this->stack();
} else {
$tag = $this->unstack();
$buffer = $this->unbuffer();
if (empty($tag['href']) && empty($tag['title'])) {
# empty links... testcase mania, who would possibly do anything like that?!
$this->out('['.$buffer.']()', true);
return;
}
if ($buffer == $tag['href'] && empty($tag['title'])) {
# <http://example.com>
$this->out('<'.$buffer.'>', true);
return;
}
$bufferDecoded = $this->decode(trim($buffer));
if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:'.$bufferDecoded == $tag['href']) {
if (is_null($tag['title'])) {
# <mail@example.com>
$this->out('<'.$bufferDecoded.'>', true);
return;
}
# [mail@example.com][1]
# ...
# [1]: mailto:mail@example.com Title
$tag['href'] = 'mailto:'.$bufferDecoded;
}
# [This link][id]
foreach ($this->stack['a'] as $tag2) {
if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) {
$tag['linkID'] = $tag2['linkID'];
break;
}
}
if (!isset($tag['linkID'])) {
$tag['linkID'] = count($this->stack['a']) + 1;
array_push($this->stack['a'], $tag);
}
$this->out('['.$buffer.']['.$tag['linkID'].']', true);
}
}
/**
* handle <img /> tags
*
* @param void
* @return void
*/
function handleTag_img() {
if (!$this->parser->isStartTag) {
return; # just to be sure this is really an empty tag...
}
if (isset($this->parser->tagAttributes['title'])) {
$this->parser->tagAttributes['title'] = $this->decode($this->parser->tagAttributes['title']);
} else {
$this->parser->tagAttributes['title'] = null;
}
if (isset($this->parser->tagAttributes['alt'])) {
$this->parser->tagAttributes['alt'] = $this->decode($this->parser->tagAttributes['alt']);
} else {
$this->parser->tagAttributes['alt'] = null;
}
if (empty($this->parser->tagAttributes['src'])) {
# support for "empty" images... dunno if this is really needed
# but there are some testcases which do that...
if (!empty($this->parser->tagAttributes['title'])) {
$this->parser->tagAttributes['title'] = ' '.$this->parser->tagAttributes['title'].' ';
}
$this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['title'].')', true);
return;
} else {
$this->parser->tagAttributes['src'] = $this->decode($this->parser->tagAttributes['src']);
}
# [This link][id]
$link_id = false;
if (!empty($this->stack['a'])) {
foreach ($this->stack['a'] as $tag) {
if ($tag['href'] == $this->parser->tagAttributes['src']
&& $tag['title'] === $this->parser->tagAttributes['title']) {
$link_id = $tag['linkID'];
break;
}
}
} else {
$this->stack['a'] = array();
}
if (!$link_id) {
$link_id = count($this->stack['a']) + 1;
$tag = array(
'href' => $this->parser->tagAttributes['src'],
'linkID' => $link_id,
'title' => $this->parser->tagAttributes['title']
);
array_push($this->stack['a'], $tag);
}
$this->out('!['.$this->parser->tagAttributes['alt'].']['.$link_id.']', true);
}
/**
* handle <code> tags
*
* @param void
* @return void
*/
function handleTag_code() {
if ($this->hasParent('pre')) {
# ignore code blocks inside <pre>
return;
}
if ($this->parser->isStartTag) {
$this->buffer();
} else {
$buffer = $this->unbuffer();
# use as many backticks as needed
preg_match_all('#`+#', $buffer, $matches);
if (!empty($matches[0])) {
rsort($matches[0]);
$ticks = '`';
while (true) {
if (!in_array($ticks, $matches[0])) {
break;
}
$ticks .= '`';
}
} else {
$ticks = '`';
}
if ($buffer[0] == '`' || substr($buffer, -1) == '`') {
$buffer = ' '.$buffer.' ';
}
$this->out($ticks.$buffer.$ticks, true);
}
}
/**
* handle <pre> tags
*
* @param void
* @return void
*/
function handleTag_pre() {
if ($this->keepHTML && $this->parser->isStartTag) {
# check if a simple <code> follows
if (!preg_match('#^\s*<code\s*>#Us', $this->parser->html)) {
# this is no standard markdown code block
$this->handleTagToText();
return;
}
}
$this->indent(' ');
if (!$this->parser->isStartTag) {
$this->setLineBreaks(2);
} else {
$this->parser->html = ltrim($this->parser->html);
}
}
/**
* handle <blockquote> tags
*
* @param void
* @return void
*/
function handleTag_blockquote() {
$this->indent('> ');
}
/**
* handle <ul> tags
*
* @param void
* @return void
*/
function handleTag_ul() {
if ($this->parser->isStartTag) {
$this->stack();
if (!$this->keepHTML && $this->lastClosedTag == $this->parser->tagName) {
$this->out("\n".$this->indent.'<!-- -->'."\n".$this->indent."\n".$this->indent);
}
} else {
$this->unstack();
if ($this->parent() != 'li' || preg_match('#^\s*(</li\s*>\s*<li\s*>\s*)?<(p|blockquote)\s*>#sU', $this->parser->html)) {
# dont make Markdown add unneeded paragraphs
$this->setLineBreaks(2);
}
}
}
/**
* handle <ul> tags
*
* @param void
* @return void
*/
function handleTag_ol() {
# same as above
$this->parser->tagAttributes['num'] = 0;
$this->handleTag_ul();
}
/**
* handle <li> tags
*
* @param void
* @return void
*/
function handleTag_li() {
if ($this->parent() == 'ol') {
$parent =& $this->getStacked('ol');
if ($this->parser->isStartTag) {
$parent['num']++;
$this->out($parent['num'].'.'.str_repeat(' ', 3 - strlen($parent['num'])), true);
}
$this->indent(' ', false);
} else {
if ($this->parser->isStartTag) {
$this->out('* ', true);
}
$this->indent(' ', false);
}
if (!$this->parser->isStartTag) {
$this->setLineBreaks(1);
}
}
/**
* handle <hr /> tags
*
* @param void
* @return void
*/
function handleTag_hr() {
if (!$this->parser->isStartTag) {
return; # just to be sure this really is an empty tag
}
$this->out('* * *', true);
$this->setLineBreaks(2);
}
/**
* handle <br /> tags
*
* @param void
* @return void
*/
function handleTag_br() {
$this->out(" \n".$this->indent, true);
$this->parser->html = ltrim($this->parser->html);
}
/**
* node stack, e.g. for <a> and <abbr> tags
*
* @var array<array>
*/
var $stack = array();
/**
* add current node to the stack
* this only stores the attributes
*
* @param void
* @return void
*/
function stack() {
if (!isset($this->stack[$this->parser->tagName])) {
$this->stack[$this->parser->tagName] = array();
}
array_push($this->stack[$this->parser->tagName], $this->parser->tagAttributes);
}
/**
* remove current tag from stack
*
* @param void
* @return array
*/
function unstack() {
if (!isset($this->stack[$this->parser->tagName]) || !is_array($this->stack[$this->parser->tagName])) {
trigger_error('Trying to unstack from empty stack. This must not happen.', E_USER_ERROR);
}
return array_pop($this->stack[$this->parser->tagName]);
}
/**
* get last stacked element of type $tagName
*
* @param string $tagName
* @return array
*/
function & getStacked($tagName) {
// no end() so it can be referenced
return $this->stack[$tagName][count($this->stack[$tagName])-1];
}
/**
* set number of line breaks before next start tag
*
* @param int $number
* @return void
*/
function setLineBreaks($number) {
if ($this->lineBreaks < $number) {
$this->lineBreaks = $number;
}
}
/**
* stores current buffers
*
* @var array<string>
*/
var $buffer = array();
/**
* buffer next parser output until unbuffer() is called
*
* @param void
* @return void
*/
function buffer() {
array_push($this->buffer, '');
}
/**
* end current buffer and return buffered output
*
* @param void
* @return string
*/
function unbuffer() {
return array_pop($this->buffer);
}
/**
* append string to the correct var, either
* directly to $this->output or to the current
* buffers
*
* @param string $put
* @return void
*/
function out($put, $nowrap = false) {
if (empty($put)) {
return;
}
if (!empty($this->buffer)) {
$this->buffer[count($this->buffer) - 1] .= $put;
} else {
if ($this->bodyWidth && !$this->parser->keepWhitespace) { # wrap lines
// get last line
$pos = strrpos($this->output, "\n");
if ($pos === false) {
$line = $this->output;
} else {
$line = substr($this->output, $pos);
}
if ($nowrap) {
if ($put[0] != "\n" && $this->strlen($line) + $this->strlen($put) > $this->bodyWidth) {
$this->output .= "\n".$this->indent.$put;
} else {
$this->output .= $put;
}
return;
} else {
$put .= "\n"; # make sure we get all lines in the while below
$lineLen = $this->strlen($line);
while ($pos = strpos($put, "\n")) {
$putLine = substr($put, 0, $pos+1);
$put = substr($put, $pos+1);
$putLen = $this->strlen($putLine);
if ($lineLen + $putLen < $this->bodyWidth) {
$this->output .= $putLine;
$lineLen = $putLen;
} else {
$split = preg_split('#^(.{0,'.($this->bodyWidth - $lineLen).'})\b#', $putLine, 2, PREG_SPLIT_OFFSET_CAPTURE | PREG_SPLIT_DELIM_CAPTURE);
$this->output .= rtrim($split[1][0])."\n".$this->indent.$this->wordwrap(ltrim($split[2][0]), $this->bodyWidth, "\n".$this->indent, false);
}
}
$this->output = substr($this->output, 0, -1);
return;
}
} else {
$this->output .= $put;
}
}
}
/**
* current indentation
*
* @var string
*/
var $indent = '';
/**
* indent next output (start tag) or unindent (end tag)
*
* @param string $str indentation
* @param bool $output add indendation to output
* @return void
*/
function indent($str, $output = true) {
if ($this->parser->isStartTag) {
$this->indent .= $str;
if ($output) {
$this->out($str, true);
}
} else {
$this->indent = substr($this->indent, 0, -strlen($str));
}
}
/**
* decode email addresses
*
* @author derernst@gmx.ch <http://www.php.net/manual/en/function.html-entity-decode.php#68536>
* @author Milian Wolff <http://milianw.de>
*/
function decode($text, $quote_style = ENT_QUOTES) {
if (version_compare(PHP_VERSION, '5', '>=')) {
# UTF-8 is only supported in PHP 5.x.x and above
$text = html_entity_decode($text, $quote_style, 'UTF-8');
} else {
if (function_exists('html_entity_decode')) {
$text = html_entity_decode($text, $quote_style, 'ISO-8859-1');
} else {
static $trans_tbl;
if (!isset($trans_tbl)) {
$trans_tbl = array_flip(get_html_translation_table(HTML_ENTITIES, $quote_style));
}
$text = strtr($text, $trans_tbl);
}
$text = preg_replace_callback('~&#x([0-9a-f]+);~i', array(&$this, '_decode_hex'), $text);
$text = preg_replace_callback('~&#(\d{2,5});~', array(&$this, '_decode_numeric'), $text);
}
return $text;
}
/**
* callback for decode() which converts a hexadecimal entity to UTF-8
*
* @param array $matches
* @return string UTF-8 encoded
*/
function _decode_hex($matches) {
return $this->unichr(hexdec($matches[1]));
}
/**
* callback for decode() which converts a numerical entity to UTF-8
*
* @param array $matches
* @return string UTF-8 encoded
*/
function _decode_numeric($matches) {
return $this->unichr($matches[1]);
}
/**
* UTF-8 chr() which supports numeric entities
*
* @author grey - greywyvern - com <http://www.php.net/manual/en/function.chr.php#55978>
* @param array $matches
* @return string UTF-8 encoded
*/
function unichr($dec) {
if ($dec < 128) {
$utf = chr($dec);
} else if ($dec < 2048) {
$utf = chr(192 + (($dec - ($dec % 64)) / 64));
$utf .= chr(128 + ($dec % 64));
} else {
$utf = chr(224 + (($dec - ($dec % 4096)) / 4096));
$utf .= chr(128 + ((($dec % 4096) - ($dec % 64)) / 64));
$utf .= chr(128 + ($dec % 64));
}
return $utf;
}
/**
* UTF-8 strlen()
*
* @param string $str
* @return int
*
* @author dtorop 932 at hotmail dot com <http://www.php.net/manual/en/function.strlen.php#37975>
* @author Milian Wolff <http://milianw.de>
*/
function strlen($str) {
if (function_exists('mb_strlen')) {
return mb_strlen($str, 'UTF-8');
} else {
return preg_match_all('/[\x00-\x7F\xC0-\xFD]/', $str, $var_empty);
}
}
/**
* wordwrap for utf8 encoded strings
*
* @param string $str
* @param integer $len
* @param string $what
* @return string
*/
function wordwrap($str, $width, $break, $cut = false){
if (!$cut) {
$regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){1,'.$width.'}\b#';
} else {
$regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.'}#';
}
$return = '';
while (preg_match($regexp, $str, $matches)) {
$string = $matches[0];
$str = ltrim(substr($str, strlen($string)));
if (!$cut && isset($str[0]) && in_array($str[0], array('.', '!', ';', ':', '?', ','))) {
$string .= $str[0];
$str = ltrim(substr($str, 1));
}
$return .= $string.$break;
}
return $return.ltrim($str);
}
/**
* check if current node has a $tagName as parent (somewhere, not only the direct parent)
*
* @param string $tagName
* @return bool
*/
function hasParent($tagName) {
return in_array($tagName, $this->parser->openTags);
}
/**
* get tagName of direct parent tag
*
* @param void
* @return string $tagName
*/
function parent() {
return end($this->parser->openTags);
}
}

33
include/markdownify/markdownify_cli.php Executable file
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#!/usr/bin/php
<?php
require dirname(__FILE__) .'/markdownify_extra.php';
function param($name, $default = false) {
if (!in_array('--'.$name, $_SERVER['argv']))
return $default;
reset($_SERVER['argv']);
while (each($_SERVER['argv'])) {
if (current($_SERVER['argv']) == '--'.$name)
break;
}
$value = next($_SERVER['argv']);
if ($value === false || substr($value, 0, 2) == '--')
return true;
else
return $value;
}
$input = stream_get_contents(STDIN);
$linksAfterEachParagraph = param('links');
$bodyWidth = param('width');
$keepHTML = param('html', true);
if (param('no_extra')) {
$parser = new Markdownify($linksAfterEachParagraph, $bodyWidth, $keepHTML);
} else {
$parser = new Markdownify_Extra($linksAfterEachParagraph, $bodyWidth, $keepHTML);
}
echo $parser->parseString($input) ."\n";

489
include/markdownify/markdownify_extra.php Normal file
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<?php
/**
* Class to convert HTML to Markdown with PHP Markdown Extra syntax support.
*
* @version 1.0.0 alpha
* @author Milian Wolff (<mail@milianw.de>, <http://milianw.de>)
* @license LGPL, see LICENSE_LGPL.txt and the summary below
* @copyright (C) 2007 Milian Wolff
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* standard Markdownify class
*/
require_once dirname(__FILE__).'/markdownify.php';
class Markdownify_Extra extends Markdownify {
/**
* table data, including rows with content and the maximum width of each col
*
* @var array
*/
var $table = array();
/**
* current col
*
* @var int
*/
var $col = -1;
/**
* current row
*
* @var int
*/
var $row = 0;
/**
* constructor, see Markdownify::Markdownify() for more information
*/
function Markdownify_Extra($linksAfterEachParagraph = MDFY_LINKS_EACH_PARAGRAPH, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) {
parent::Markdownify($linksAfterEachParagraph, $bodyWidth, $keepHTML);
### new markdownable tags & attributes
# header ids: # foo {bar}
$this->isMarkdownable['h1']['id'] = 'optional';
$this->isMarkdownable['h2']['id'] = 'optional';
$this->isMarkdownable['h3']['id'] = 'optional';
$this->isMarkdownable['h4']['id'] = 'optional';
$this->isMarkdownable['h5']['id'] = 'optional';
$this->isMarkdownable['h6']['id'] = 'optional';
# tables
$this->isMarkdownable['table'] = array();
$this->isMarkdownable['th'] = array(
'align' => 'optional',
);
$this->isMarkdownable['td'] = array(
'align' => 'optional',
);
$this->isMarkdownable['tr'] = array();
array_push($this->ignore, 'thead');
array_push($this->ignore, 'tbody');
array_push($this->ignore, 'tfoot');
# definition lists
$this->isMarkdownable['dl'] = array();
$this->isMarkdownable['dd'] = array();
$this->isMarkdownable['dt'] = array();
# footnotes
$this->isMarkdownable['fnref'] = array(
'target' => 'required',
);
$this->isMarkdownable['footnotes'] = array();
$this->isMarkdownable['fn'] = array(
'name' => 'required',
);
$this->parser->blockElements['fnref'] = false;
$this->parser->blockElements['fn'] = true;
$this->parser->blockElements['footnotes'] = true;
# abbr
$this->isMarkdownable['abbr'] = array(
'title' => 'required',
);
# build RegEx lookahead to decide wether table can pe parsed or not
$inlineTags = array_keys($this->parser->blockElements, false);
$colContents = '(?:[^<]|<(?:'.implode('|', $inlineTags).'|[^a-z]))+';
$this->tableLookaheadHeader = '{
^\s*(?:<thead\s*>)?\s* # open optional thead
<tr\s*>\s*(?: # start required row with headers
<th(?:\s+align=("|\')(?:left|center|right)\1)?\s*> # header with optional align
\s*'.$colContents.'\s* # contents
</th>\s* # close header
)+</tr> # close row with headers
\s*(?:</thead>)? # close optional thead
}sxi';
$this->tdSubstitute = '\s*'.$colContents.'\s* # contents
</td>\s*';
$this->tableLookaheadBody = '{
\s*(?:<tbody\s*>)?\s* # open optional tbody
(?:<tr\s*>\s* # start row
%s # cols to be substituted
</tr>)+ # close row
\s*(?:</tbody>)? # close optional tbody
\s*</table> # close table
}sxi';
}
/**
* handle header tags (<h1> - <h6>)
*
* @param int $level 1-6
* @return void
*/
function handleHeader($level) {
static $id = null;
if ($this->parser->isStartTag) {
if (isset($this->parser->tagAttributes['id'])) {
$id = $this->parser->tagAttributes['id'];
}
} else {
if (!is_null($id)) {
$this->out(' {#'.$id.'}');
$id = null;
}
}
parent::handleHeader($level);
}
/**
* handle <abbr> tags
*
* @param void
* @return void
*/
function handleTag_abbr() {
if ($this->parser->isStartTag) {
$this->stack();
$this->buffer();
} else {
$tag = $this->unstack();
$tag['text'] = $this->unbuffer();
$add = true;
foreach ($this->stack['abbr'] as $stacked) {
if ($stacked['text'] == $tag['text']) {
/** TODO: differing abbr definitions, i.e. different titles for same text **/
$add = false;
break;
}
}
$this->out($tag['text']);
if ($add) {
array_push($this->stack['abbr'], $tag);
}
}
}
/**
* flush stacked abbr tags
*
* @param void
* @return void
*/
function flushStacked_abbr() {
$out = array();
foreach ($this->stack['abbr'] as $k => $tag) {
if (!isset($tag['unstacked'])) {
array_push($out, ' *['.$tag['text'].']: '.$tag['title']);
$tag['unstacked'] = true;
$this->stack['abbr'][$k] = $tag;
}
}
if (!empty($out)) {
$this->out("\n\n".implode("\n", $out));
}
}
/**
* handle <table> tags
*
* @param void
* @return void
*/
function handleTag_table() {
if ($this->parser->isStartTag) {
# check if upcoming table can be converted
if ($this->keepHTML) {
if (preg_match($this->tableLookaheadHeader, $this->parser->html, $matches)) {
# header seems good, now check body
# get align & number of cols
preg_match_all('#<th(?:\s+align=("|\')(left|right|center)\1)?\s*>#si', $matches[0], $cols);
$regEx = '';
$i = 1;
$aligns = array();
foreach ($cols[2] as $align) {
$align = strtolower($align);
array_push($aligns, $align);
if (empty($align)) {
$align = 'left'; # default value
}
$td = '\s+align=("|\')'.$align.'\\'.$i;
$i++;
if ($align == 'left') {
# look for empty align or left
$td = '(?:'.$td.')?';
}
$td = '<td'.$td.'\s*>';
$regEx .= $td.$this->tdSubstitute;
}
$regEx = sprintf($this->tableLookaheadBody, $regEx);
if (preg_match($regEx, $this->parser->html, $matches, null, strlen($matches[0]))) {
# this is a markdownable table tag!
$this->table = array(
'rows' => array(),
'col_widths' => array(),
'aligns' => $aligns,
);
$this->row = 0;
} else {
# non markdownable table
$this->handleTagToText();
}
} else {
# non markdownable table
$this->handleTagToText();
}
} else {
$this->table = array(
'rows' => array(),
'col_widths' => array(),
'aligns' => array(),
);
$this->row = 0;
}
} else {
# finally build the table in Markdown Extra syntax
$separator = array();
# seperator with correct align identifikators
foreach($this->table['aligns'] as $col => $align) {
if (!$this->keepHTML && !isset($this->table['col_widths'][$col])) {
break;
}
$left = ' ';
$right = ' ';
switch ($align) {
case 'left':
$left = ':';
break;
case 'center':
$right = ':';
$left = ':';
case 'right':
$right = ':';
break;
}
array_push($separator, $left.str_repeat('-', $this->table['col_widths'][$col]).$right);
}
$separator = '|'.implode('|', $separator).'|';
$rows = array();
# add padding
array_walk_recursive($this->table['rows'], array(&$this, 'alignTdContent'));
$header = array_shift($this->table['rows']);
array_push($rows, '| '.implode(' | ', $header).' |');
array_push($rows, $separator);
foreach ($this->table['rows'] as $row) {
array_push($rows, '| '.implode(' | ', $row).' |');
}
$this->out(implode("\n".$this->indent, $rows));
$this->table = array();
$this->setLineBreaks(2);
}
}
/**
* properly pad content so it is aligned as whished
* should be used with array_walk_recursive on $this->table['rows']
*
* @param string &$content
* @param int $col
* @return void
*/
function alignTdContent(&$content, $col) {
switch ($this->table['aligns'][$col]) {
default:
case 'left':
$content .= str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content));
break;
case 'right':
$content = str_repeat(' ', $this->table['col_widths'][$col] - $this->strlen($content)).$content;
break;
case 'center':
$paddingNeeded = $this->table['col_widths'][$col] - $this->strlen($content);
$left = floor($paddingNeeded / 2);
$right = $paddingNeeded - $left;
$content = str_repeat(' ', $left).$content.str_repeat(' ', $right);
break;
}
}
/**
* handle <tr> tags
*
* @param void
* @return void
*/
function handleTag_tr() {
if ($this->parser->isStartTag) {
$this->col = -1;
} else {
$this->row++;
}
}
/**
* handle <td> tags
*
* @param void
* @return void
*/
function handleTag_td() {
if ($this->parser->isStartTag) {
$this->col++;
if (!isset($this->table['col_widths'][$this->col])) {
$this->table['col_widths'][$this->col] = 0;
}
$this->buffer();
} else {
$buffer = trim($this->unbuffer());
$this->table['col_widths'][$this->col] = max($this->table['col_widths'][$this->col], $this->strlen($buffer));
$this->table['rows'][$this->row][$this->col] = $buffer;
}
}
/**
* handle <th> tags
*
* @param void
* @return void
*/
function handleTag_th() {
if (!$this->keepHTML && !isset($this->table['rows'][1]) && !isset($this->table['aligns'][$this->col+1])) {
if (isset($this->parser->tagAttributes['align'])) {
$this->table['aligns'][$this->col+1] = $this->parser->tagAttributes['align'];
} else {
$this->table['aligns'][$this->col+1] = '';
}
}
$this->handleTag_td();
}
/**
* handle <dl> tags
*
* @param void
* @return void
*/
function handleTag_dl() {
if (!$this->parser->isStartTag) {
$this->setLineBreaks(2);
}
}
/**
* handle <dt> tags
*
* @param void
* @return void
**/
function handleTag_dt() {
if (!$this->parser->isStartTag) {
$this->setLineBreaks(1);
}
}
/**
* handle <dd> tags
*
* @param void
* @return void
*/
function handleTag_dd() {
if ($this->parser->isStartTag) {
if (substr(ltrim($this->parser->html), 0, 3) == '<p>') {
# next comes a paragraph, so we'll need an extra line
$this->out("\n".$this->indent);
} elseif (substr($this->output, -2) == "\n\n") {
$this->output = substr($this->output, 0, -1);
}
$this->out(': ');
$this->indent(' ', false);
} else {
# lookahead for next dt
if (substr(ltrim($this->parser->html), 0, 4) == '<dt>') {
$this->setLineBreaks(2);
} else {
$this->setLineBreaks(1);
}
$this->indent(' ');
}
}
/**
* handle <fnref /> tags (custom footnote references, see markdownify_extra::parseString())
*
* @param void
* @return void
*/
function handleTag_fnref() {
$this->out('[^'.$this->parser->tagAttributes['target'].']');
}
/**
* handle <fn> tags (custom footnotes, see markdownify_extra::parseString()
* and markdownify_extra::_makeFootnotes())
*
* @param void
* @return void
*/
function handleTag_fn() {
if ($this->parser->isStartTag) {
$this->out('[^'.$this->parser->tagAttributes['name'].']:');
$this->setLineBreaks(1);
} else {
$this->setLineBreaks(2);
}
$this->indent(' ');
}
/**
* handle <footnotes> tag (custom footnotes, see markdownify_extra::parseString()
* and markdownify_extra::_makeFootnotes())
*
* @param void
* @return void
*/
function handleTag_footnotes() {
if (!$this->parser->isStartTag) {
$this->setLineBreaks(2);
}
}
/**
* parse a HTML string, clean up footnotes prior
*
* @param string $HTML input
* @return string Markdown formatted output
*/
function parseString($html) {
/** TODO: custom markdown-extra options, e.g. titles & classes **/
# <sup id="fnref:..."><a href"#fn..." rel="footnote">...</a></sup>
# => <fnref target="..." />
$html = preg_replace('@<sup id="fnref:([^"]+)">\s*<a href="#fn:\1" rel="footnote">\s*\d+\s*</a>\s*</sup>@Us', '<fnref target="$1" />', $html);
# <div class="footnotes">
# <hr />
# <ol>
#
# <li id="fn:...">...</li>
# ...
#
# </ol>
# </div>
# =>
# <footnotes>
# <fn name="...">...</fn>
# ...
# </footnotes>
$html = preg_replace_callback('#<div class="footnotes">\s*<hr />\s*<ol>\s*(.+)\s*</ol>\s*</div>#Us', array(&$this, '_makeFootnotes'), $html);
return parent::parseString($html);
}
/**
* replace HTML representation of footnotes with something more easily parsable
*
* @note this is a callback to be used in parseString()
*
* @param array $matches
* @return string
*/
function _makeFootnotes($matches) {
# <li id="fn:1">
# ...
# <a href="#fnref:block" rev="footnote">&#8617;</a></p>
# </li>
# => <fn name="1">...</fn>
# remove footnote link
$fns = preg_replace('@\s*(&#160;\s*)?<a href="#fnref:[^"]+" rev="footnote"[^>]*>&#8617;</a>\s*@s', '', $matches[1]);
# remove empty paragraph
$fns = preg_replace('@<p>\s*</p>@s', '', $fns);
# <li id="fn:1">...</li> -> <footnote nr="1">...</footnote>
$fns = str_replace('<li id="fn:', '<fn name="', $fns);
$fns = '<footnotes>'.$fns.'</footnotes>';
return preg_replace('#</li>\s*(?=(?:<fn|</footnotes>))#s', '</fn>$1', $fns);
}
}

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include/markdownify/parsehtml/parsehtml.php Normal file
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<?php
/**
* parseHTML is a HTML parser which works with PHP 4 and above.
* It tries to handle invalid HTML to some degree.
*
* @version 1.0 beta
* @author Milian Wolff (mail@milianw.de, http://milianw.de)
* @license LGPL, see LICENSE_LGPL.txt and the summary below
* @copyright (C) 2007 Milian Wolff
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
class parseHTML {
/**
* tags which are always empty (<br /> etc.)
*
* @var array<string>
*/
var $emptyTags = array(
'br',
'hr',
'input',
'img',
'area',
'link',
'meta',
'param',
);
/**
* tags with preformatted text
* whitespaces wont be touched in them
*
* @var array<string>
*/
var $preformattedTags = array(
'script',
'style',
'pre',
'code',
);
/**
* supress HTML tags inside preformatted tags (see above)
*
* @var bool
*/
var $noTagsInCode = false;
/**
* html to be parsed
*
* @var string
*/
var $html = '';
/**
* node type:
*
* - tag (see isStartTag)
* - text (includes cdata)
* - comment
* - doctype
* - pi (processing instruction)
*
* @var string
*/
var $nodeType = '';
/**
* current node content, i.e. either a
* simple string (text node), or something like
* <tag attrib="value"...>
*
* @var string
*/
var $node = '';
/**
* wether current node is an opening tag (<a>) or not (</a>)
* set to NULL if current node is not a tag
* NOTE: empty tags (<br />) set this to true as well!
*
* @var bool | null
*/
var $isStartTag = null;
/**
* wether current node is an empty tag (<br />) or not (<a></a>)
*
* @var bool | null
*/
var $isEmptyTag = null;
/**
* tag name
*
* @var string | null
*/
var $tagName = '';
/**
* attributes of current tag
*
* @var array (attribName=>value) | null
*/
var $tagAttributes = null;
/**
* wether the current tag is a block element
*
* @var bool | null
*/
var $isBlockElement = null;
/**
* keep whitespace
*
* @var int
*/
var $keepWhitespace = 0;
/**
* list of open tags
* count this to get current depth
*
* @var array
*/
var $openTags = array();
/**
* list of block elements
*
* @var array
* TODO: what shall we do with <del> and <ins> ?!
*/
var $blockElements = array (
# tag name => <bool> is block
# block elements
'address' => true,
'blockquote' => true,
'center' => true,
'del' => true,
'dir' => true,
'div' => true,
'dl' => true,
'fieldset' => true,
'form' => true,
'h1' => true,
'h2' => true,
'h3' => true,
'h4' => true,
'h5' => true,
'h6' => true,
'hr' => true,
'ins' => true,
'isindex' => true,
'menu' => true,
'noframes' => true,
'noscript' => true,
'ol' => true,
'p' => true,
'pre' => true,
'table' => true,
'ul' => true,
# set table elements and list items to block as well
'thead' => true,
'tbody' => true,
'tfoot' => true,
'td' => true,
'tr' => true,
'th' => true,
'li' => true,
'dd' => true,
'dt' => true,
# header items and html / body as well
'html' => true,
'body' => true,
'head' => true,
'meta' => true,
'link' => true,
'style' => true,
'title' => true,
# unfancy media tags, when indented should be rendered as block
'map' => true,
'object' => true,
'param' => true,
'embed' => true,
'area' => true,
# inline elements
'a' => false,
'abbr' => false,
'acronym' => false,
'applet' => false,
'b' => false,
'basefont' => false,
'bdo' => false,
'big' => false,
'br' => false,
'button' => false,
'cite' => false,
'code' => false,
'del' => false,
'dfn' => false,
'em' => false,
'font' => false,
'i' => false,
'img' => false,
'ins' => false,
'input' => false,
'iframe' => false,
'kbd' => false,
'label' => false,
'q' => false,
'samp' => false,
'script' => false,
'select' => false,
'small' => false,
'span' => false,
'strong' => false,
'sub' => false,
'sup' => false,
'textarea' => false,
'tt' => false,
'var' => false,
);
/**
* get next node, set $this->html prior!
*
* @param void
* @return bool
*/
function nextNode() {
if (empty($this->html)) {
# we are done with parsing the html string
return false;
}
static $skipWhitespace = true;
if ($this->isStartTag && !$this->isEmptyTag) {
array_push($this->openTags, $this->tagName);
if (in_array($this->tagName, $this->preformattedTags)) {
# dont truncate whitespaces for <code> or <pre> contents
$this->keepWhitespace++;
}
}
if ($this->html[0] == '<') {
$token = substr($this->html, 0, 9);
if (substr($token, 0, 2) == '<?') {
# xml prolog or other pi's
/** TODO **/
#trigger_error('this might need some work', E_USER_NOTICE);
$pos = strpos($this->html, '>');
$this->setNode('pi', $pos + 1);
return true;
}
if (substr($token, 0, 4) == '<!--') {
# comment
$pos = strpos($this->html, '-->');
if ($pos === false) {
# could not find a closing -->, use next gt instead
# this is firefox' behaviour
$pos = strpos($this->html, '>') + 1;
} else {
$pos += 3;
}
$this->setNode('comment', $pos);
$skipWhitespace = true;
return true;
}
if ($token == '<!DOCTYPE') {
# doctype
$this->setNode('doctype', strpos($this->html, '>')+1);
$skipWhitespace = true;
return true;
}
if ($token == '<![CDATA[') {
# cdata, use text node
# remove leading <![CDATA[
$this->html = substr($this->html, 9);
$this->setNode('text', strpos($this->html, ']]>')+3);
# remove trailing ]]> and trim
$this->node = substr($this->node, 0, -3);
$this->handleWhitespaces();
$skipWhitespace = true;
return true;
}
if ($this->parseTag()) {
# seems to be a tag
# handle whitespaces
if ($this->isBlockElement) {
$skipWhitespace = true;
} else {
$skipWhitespace = false;
}
return true;
}
}
if ($this->keepWhitespace) {
$skipWhitespace = false;
}
# when we get here it seems to be a text node
$pos = strpos($this->html, '<');
if ($pos === false) {
$pos = strlen($this->html);
}
$this->setNode('text', $pos);
$this->handleWhitespaces();
if ($skipWhitespace && $this->node == ' ') {
return $this->nextNode();
}
$skipWhitespace = false;
return true;
}
/**
* parse tag, set tag name and attributes, see if it's a closing tag and so forth...
*
* @param void
* @return bool
*/
function parseTag() {
static $a_ord, $z_ord, $special_ords;
if (!isset($a_ord)) {
$a_ord = ord('a');
$z_ord = ord('z');
$special_ords = array(
ord(':'), // for xml:lang
ord('-'), // for http-equiv
);
}
$tagName = '';
$pos = 1;
$isStartTag = $this->html[$pos] != '/';
if (!$isStartTag) {
$pos++;
}
# get tagName
while (isset($this->html[$pos])) {
$pos_ord = ord(strtolower($this->html[$pos]));
if (($pos_ord >= $a_ord && $pos_ord <= $z_ord) || (!empty($tagName) && is_numeric($this->html[$pos]))) {
$tagName .= $this->html[$pos];
$pos++;
} else {
$pos--;
break;
}
}
$tagName = strtolower($tagName);
if (empty($tagName) || !isset($this->blockElements[$tagName])) {
# something went wrong => invalid tag
$this->invalidTag();
return false;
}
if ($this->noTagsInCode && end($this->openTags) == 'code' && !($tagName == 'code' && !$isStartTag)) {
# we supress all HTML tags inside code tags
$this->invalidTag();
return false;
}
# get tag attributes
/** TODO: in html 4 attributes do not need to be quoted **/
$isEmptyTag = false;
$attributes = array();
$currAttrib = '';
while (isset($this->html[$pos+1])) {
$pos++;
# close tag
if ($this->html[$pos] == '>' || $this->html[$pos].$this->html[$pos+1] == '/>') {
if ($this->html[$pos] == '/') {
$isEmptyTag = true;
$pos++;
}
break;
}
$pos_ord = ord(strtolower($this->html[$pos]));
if ( ($pos_ord >= $a_ord && $pos_ord <= $z_ord) || in_array($pos_ord, $special_ords)) {
# attribute name
$currAttrib .= $this->html[$pos];
} elseif (in_array($this->html[$pos], array(' ', "\t", "\n"))) {
# drop whitespace
} elseif (in_array($this->html[$pos].$this->html[$pos+1], array('="', "='"))) {
# get attribute value
$pos++;
$await = $this->html[$pos]; # single or double quote
$pos++;
$value = '';
while (isset($this->html[$pos]) && $this->html[$pos] != $await) {
$value .= $this->html[$pos];
$pos++;
}
$attributes[$currAttrib] = $value;
$currAttrib = '';
} else {
$this->invalidTag();
return false;
}
}
if ($this->html[$pos] != '>') {
$this->invalidTag();
return false;
}
if (!empty($currAttrib)) {
# html 4 allows something like <option selected> instead of <option selected="selected">
$attributes[$currAttrib] = $currAttrib;
}
if (!$isStartTag) {
if (!empty($attributes) || $tagName != end($this->openTags)) {
# end tags must not contain any attributes
# or maybe we did not expect a different tag to be closed
$this->invalidTag();
return false;
}
array_pop($this->openTags);
if (in_array($tagName, $this->preformattedTags)) {
$this->keepWhitespace--;
}
}
$pos++;
$this->node = substr($this->html, 0, $pos);
$this->html = substr($this->html, $pos);
$this->tagName = $tagName;
$this->tagAttributes = $attributes;
$this->isStartTag = $isStartTag;
$this->isEmptyTag = $isEmptyTag || in_array($tagName, $this->emptyTags);
if ($this->isEmptyTag) {
# might be not well formed
$this->node = preg_replace('# */? *>$#', ' />', $this->node);
}
$this->nodeType = 'tag';
$this->isBlockElement = $this->blockElements[$tagName];
return true;
}
/**
* handle invalid tags
*
* @param void
* @return void
*/
function invalidTag() {
$this->html = substr_replace($this->html, '&lt;', 0, 1);
}
/**
* update all vars and make $this->html shorter
*
* @param string $type see description for $this->nodeType
* @param int $pos to which position shall we cut?
* @return void
*/
function setNode($type, $pos) {
if ($this->nodeType == 'tag') {
# set tag specific vars to null
# $type == tag should not be called here
# see this::parseTag() for more
$this->tagName = null;
$this->tagAttributes = null;
$this->isStartTag = null;
$this->isEmptyTag = null;
$this->isBlockElement = null;
}
$this->nodeType = $type;
$this->node = substr($this->html, 0, $pos);
$this->html = substr($this->html, $pos);
}
/**
* check if $this->html begins with $str
*
* @param string $str
* @return bool
*/
function match($str) {
return substr($this->html, 0, strlen($str)) == $str;
}
/**
* truncate whitespaces
*
* @param void
* @return void
*/
function handleWhitespaces() {
if ($this->keepWhitespace) {
# <pre> or <code> before...
return;
}
# truncate multiple whitespaces to a single one
$this->node = preg_replace('#\s+#s', ' ', $this->node);
}
/**
* normalize self::node
*
* @param void
* @return void
*/
function normalizeNode() {
$this->node = '<';
if (!$this->isStartTag) {
$this->node .= '/'.$this->tagName.'>';
return;
}
$this->node .= $this->tagName;
foreach ($this->tagAttributes as $name => $value) {
$this->node .= ' '.$name.'="'.str_replace('"', '&quot;', $value).'"';
}
if ($this->isEmptyTag) {
$this->node .= ' /';
}
$this->node .= '>';
}
}
/**
* indent a HTML string properly
*
* @param string $html
* @param string $indent optional
* @return string
*/
function indentHTML($html, $indent = " ", $noTagsInCode = false) {
$parser = new parseHTML;
$parser->noTagsInCode = $noTagsInCode;
$parser->html = $html;
$html = '';
$last = true; # last tag was block elem
$indent_a = array();
while($parser->nextNode()) {
if ($parser->nodeType == 'tag') {
$parser->normalizeNode();
}
if ($parser->nodeType == 'tag' && $parser->isBlockElement) {
$isPreOrCode = in_array($parser->tagName, array('code', 'pre'));
if (!$parser->keepWhitespace && !$last && !$isPreOrCode) {
$html = rtrim($html)."\n";
}
if ($parser->isStartTag) {
$html .= implode($indent_a);
if (!$parser->isEmptyTag) {
array_push($indent_a, $indent);
}
} else {
array_pop($indent_a);
if (!$isPreOrCode) {
$html .= implode($indent_a);
}
}
$html .= $parser->node;
if (!$parser->keepWhitespace && !($isPreOrCode && $parser->isStartTag)) {
$html .= "\n";
}
$last = true;
} else {
if ($parser->nodeType == 'tag' && $parser->tagName == 'br') {
$html .= $parser->node."\n";
$last = true;
continue;
} elseif ($last && !$parser->keepWhitespace) {
$html .= implode($indent_a);
$parser->node = ltrim($parser->node);
}
$html .= $parser->node;
if (in_array($parser->nodeType, array('comment', 'pi', 'doctype'))) {
$html .= "\n";
} else {
$last = false;
}
}
}
return $html;
}
/*
# testcase / example
error_reporting(E_ALL);
$html = '<p>Simple block on one line:</p>
<div>foo</div>
<p>And nested without indentation:</p>
<div>
<div>
<div>
foo
</div>
<div style=">"/>
</div>
<div>bar</div>
</div>
<p>And with attributes:</p>
<div>
<div id="foo">
</div>
</div>
<p>This was broken in 1.0.2b7:</p>
<div class="inlinepage">
<div class="toggleableend">
foo
</div>
</div>';
#$html = '<a href="asdfasdf" title=\'asdf\' foo="bar">asdf</a>';
echo indentHTML($html);
die();
*/

3
include/oembed.php
View file

@ -93,7 +93,8 @@ function oembed_format_object($j){
$ret.="<br>";
}; break;
case "photo": {
$ret.= "<img width='".$j->width."' height='".$j->height."' src='".$j->url."'>";
$ret.= "<img width='".$j->width."' src='".$j->url."'>";
//$ret.= "<img width='".$j->width."' height='".$j->height."' src='".$j->url."'>";
$ret.="<br>";
}; break;
case "link": {