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Diffstat (limited to 'include/markdownify/markdownify.php')
| -rw-r--r-- | include/markdownify/markdownify.php | 1197 |
1 files changed, 0 insertions, 1197 deletions
diff --git a/include/markdownify/markdownify.php b/include/markdownify/markdownify.php deleted file mode 100644 index 0d4429a01..000000000 --- a/include/markdownify/markdownify.php +++ /dev/null @@ -1,1197 +0,0 @@ -<?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('&', '&', str_replace('<', '<', str_replace('>', '>', $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;', str_replace('>', '&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('"', '&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; - } - - $this->out('['.$buffer.']('.$tag['href'].' "'.$tag['title'].'")', true); - -/* - # [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']); - } - -//  - if ($this->parser->tagAttributes['title'] != "") - $this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['src'].' "'.$this->parser->tagAttributes['title'].'")', true); - else - $this->out('!['.$this->parser->tagAttributes['alt'].']('.$this->parser->tagAttributes['src'].')', true); - -/* - # [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); - } -} |