diff options
Diffstat (limited to 'vendor/pixel418/markdownify/src')
| -rw-r--r-- | vendor/pixel418/markdownify/src/Converter.php | 1400 | ||||
| -rw-r--r-- | vendor/pixel418/markdownify/src/ConverterExtra.php | 573 | ||||
| -rw-r--r-- | vendor/pixel418/markdownify/src/Parser.php | 564 |
3 files changed, 0 insertions, 2537 deletions
diff --git a/vendor/pixel418/markdownify/src/Converter.php b/vendor/pixel418/markdownify/src/Converter.php deleted file mode 100644 index 77c62dc7e..000000000 --- a/vendor/pixel418/markdownify/src/Converter.php +++ /dev/null @@ -1,1400 +0,0 @@ -<?php - -/* This file is part of the Markdownify project, which is under LGPL license */ - -namespace Markdownify; - -/** - * default configuration - */ -define('MDFY_BODYWIDTH', false); -define('MDFY_KEEPHTML', true); - -/** - * HTML to Markdown converter class - */ -class Converter -{ - /** - * html parser object - * - * @var parseHTML - */ - protected $parser; - - /** - * markdown output - * - * @var string - */ - protected $output; - - /** - * stack with tags which where not converted to html - * - * @var array<string> - */ - protected $notConverted = array(); - - /** - * skip conversion to markdown - * - * @var bool - */ - protected $skipConversion = false; - - /* options */ - - /** - * keep html tags which cannot be converted to markdown - * - * @var bool - */ - protected $keepHTML = false; - - /** - * wrap output, set to 0 to skip wrapping - * - * @var int - */ - protected $bodyWidth = 0; - - /** - * minimum body width - * - * @var int - */ - protected $minBodyWidth = 25; - - /** - * position where the link reference will be displayed - * - * - * @var int - */ - protected $linkPosition; - const LINK_AFTER_CONTENT = 0; - const LINK_AFTER_PARAGRAPH = 1; - const LINK_IN_PARAGRAPH = 2; - - /** - * stores current buffers - * - * @var array<string> - */ - protected $buffer = array(); - - /** - * stores current buffers - * - * @var array<string> - */ - protected $footnotes = array(); - - /** - * tags with elements which can be handled by markdown - * - * @var array<string> - */ - protected $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> - */ - protected $ignore = array( - 'html', - 'body', - ); - - /** - * html tags to be dropped (contents will not be parsed!) - * - * @var array<string> - */ - protected $drop = array( - 'script', - 'head', - 'style', - 'form', - 'area', - 'object', - 'param', - 'iframe', - ); - - /** - * html block tags that allow inline & block children - * - * @var array<string> - */ - protected $allowMixedChildren = array( - 'li' - ); - - /** - * Markdown indents which could be wrapped - * @note: use strings in regex format - * - * @var array<string> - */ - protected $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? - */ - protected $escapeInText = array( - '\*\*([^*]+)\*\*' => '\*\*$1\*\*', // strong - '\*([^*]+)\*' => '\*$1\*', // em - '__(?! |_)(.+)(?!<_| )__' => '\_\_$1\_\_', // strong - '_(?! |_)(.+)(?!<_| )_' => '\_$1\_', // em - '([-*_])([ ]{0,2}\1){2,}' => '\\\\$0', // hr - '`' => '\`', // code - '\[(.+)\](\s*\()' => '\[$1\]$2', // links: [text] (url) => [text\] (url) - '\[(.+)\](\s*)\[(.*)\]' => '\[$1\]$2\[$3\]', // links: [text][id] => [text\][id\] - '^#(#{0,5}) ' => '\#$1 ', // header - ); - - /** - * wether last processed node was a block tag or not - * - * @var bool - */ - protected $lastWasBlockTag = false; - - /** - * name of last closed tag - * - * @var string - */ - protected $lastClosedTag = ''; - - /** - * number of line breaks before next inline output - */ - protected $lineBreaks = 0; - - /** - * node stack, e.g. for <a> and <abbr> tags - * - * @var array<array> - */ - protected $stack = array(); - - /** - * current indentation - * - * @var string - */ - protected $indent = ''; - - /** - * constructor, set options, setup parser - * - * @param int $linkPosition define the position of links - * @param int $bodyWidth whether or not to wrap the output to the given width - * defaults to false - * @param bool $keepHTML whether to keep non markdownable HTML or to discard it - * defaults to true (HTML will be kept) - * @return void - */ - public function __construct($linkPosition = self::LINK_AFTER_CONTENT, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) - { - $this->linkPosition = $linkPosition; - $this->keepHTML = $keepHTML; - - if ($bodyWidth > $this->minBodyWidth) { - $this->bodyWidth = intval($bodyWidth); - } else { - $this->bodyWidth = false; - } - - $this->parser = new Parser; - $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 $html - * @return string markdown formatted - */ - public function parseString($html) - { - $this->resetState(); - - $this->parser->html = $html; - $this->parse(); - - return $this->output; - } - - /** - * set the position where the link reference will be displayed - * - * @param int $linkPosition - * @return void - */ - public function setLinkPosition($linkPosition) - { - $this->linkPosition = $linkPosition; - } - - /** - * set keep HTML tags which cannot be converted to markdown - * - * @param bool $linkPosition - * @return void - */ - public function setKeepHTML($keepHTML) - { - $this->keepHTML = $keepHTML; - } - - /** - * iterate through the nodes and decide what we - * shall do with the current node - * - * @param void - * @return void - */ - protected 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, $this->ignore)) { - break; - } - // If the previous tag was not a block element, we simulate a paragraph tag - if ($this->parser->isBlockElement && $this->parser->isNextToInlineContext && !in_array($this->parent(), $this->allowMixedChildren)) { - $this->setLineBreaks(2); - } - if ($this->parser->isStartTag) { - $this->flushLinebreaks(); - } - if ($this->skipConversion) { - $this->isMarkdownable(); // update notConverted - $this->handleTagToText(); - continue; - } - - // block elements - if (!$this->parser->keepWhitespace && $this->parser->isBlockElement) { - $this->fixBlockElementSpacing(); - } - - // inline elements - if (!$this->parser->keepWhitespace && $this->parser->isInlineContext) { - $this->fixInlineElementSpacing(); - } - - if ($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->linkPosition == self::LINK_AFTER_PARAGRAPH && $this->parser->isBlockElement && !$this->parser->isStartTag && empty($this->parser->openTags)) { - $this->flushFootnotes(); - } - if (!$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->flushFootnotes(); - $this->stack = array(); - } - - /** - * check if current tag can be converted to Markdown - * - * @param void - * @return bool - */ - protected function isMarkdownable() - { - if (!isset($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 footnotes - * - * @param void - * @return void - */ - protected function flushFootnotes() - { - $out = false; - foreach ($this->footnotes 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'] . ']: ' . $this->getLinkReference($tag), true); - $tag['unstacked'] = true; - $this->footnotes[$k] = $tag; - } - } - } - - /** - * return formated link reference - * - * @param array $tag - * @return string link reference - */ - protected function getLinkReference($tag) - { - return $tag['href'] . (isset($tag['title']) ? ' "' . $tag['title'] . '"' : ''); - } - - /** - * flush enqued linebreaks - * - * @param void - * @return void - */ - protected function flushLinebreaks() - { - if ($this->lineBreaks && !empty($this->output)) { - $this->out(str_repeat("\n" . $this->indent, $this->lineBreaks), true); - } - $this->lineBreaks = 0; - } - - /** - * handle non Markdownable tags - * - * @param void - * @return void - */ - protected function handleTagToText() - { - if (!$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 ($this->parser->isStartTag) { - // looks like ins or del are block elements now - if (in_array($this->parent(), array('ins', 'del'))) { - $this->out("\n", true); - $this->indent(' '); - } - // don't indent inside <pre> tags - if ($this->parser->tagName == 'pre') { - $this->out($this->parser->node); - static $indent; - $indent = $this->indent; - $this->indent = ''; - } else { - $this->out($this->parser->node . "\n" . $this->indent); - if (!$this->parser->isEmptyTag) { - $this->indent(' '); - } else { - $this->setLineBreaks(1); - } - $this->parser->html = ltrim($this->parser->html); - } - } else { - 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;', $this->unbuffer()))); - } - } - } - } - - /** - * handle plain text - * - * @param void - * @return void - */ - protected function handleText() - { - if ($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 - */ - protected function handleTag_em() - { - $this->out('_', true); - } - - protected function handleTag_i() - { - $this->handleTag_em(); - } - - /** - * handle <strong> and <b> tags - * - * @param void - * @return void - */ - protected function handleTag_strong() - { - $this->out('**', true); - } - - protected function handleTag_b() - { - $this->handleTag_strong(); - } - - /** - * handle <h1> tags - * - * @param void - * @return void - */ - protected function handleTag_h1() - { - $this->handleHeader(1); - } - - /** - * handle <h2> tags - * - * @param void - * @return void - */ - protected function handleTag_h2() - { - $this->handleHeader(2); - } - - /** - * handle <h3> tags - * - * @param void - * @return void - */ - protected function handleTag_h3() - { - $this->handleHeader(3); - } - - /** - * handle <h4> tags - * - * @param void - * @return void - */ - protected function handleTag_h4() - { - $this->handleHeader(4); - } - - /** - * handle <h5> tags - * - * @param void - * @return void - */ - protected function handleTag_h5() - { - $this->handleHeader(5); - } - - /** - * handle <h6> tags - * - * @param void - * @return void - */ - protected function handleTag_h6() - { - $this->handleHeader(6); - } - - /** - * handle header tags (<h1> - <h6>) - * - * @param int $level 1-6 - * @return void - */ - protected function handleHeader($level) - { - if ($this->parser->isStartTag) { - $this->out(str_repeat('#', $level) . ' ', true); - } else { - $this->setLineBreaks(2); - } - } - - /** - * handle <p> tags - * - * @param void - * @return void - */ - protected function handleTag_p() - { - if (!$this->parser->isStartTag) { - $this->setLineBreaks(2); - } - } - - /** - * handle <a> tags - * - * @param void - * @return void - */ - protected function handleTag_a() - { - if ($this->parser->isStartTag) { - $this->buffer(); - $this->handleTag_a_parser(); - $this->stack(); - } else { - $tag = $this->unstack(); - $buffer = $this->unbuffer(); - $this->handleTag_a_converter($tag, $buffer); - $this->out($this->handleTag_a_converter($tag, $buffer), true); - } - } - - /** - * handle <a> tags parsing - * - * @param void - * @return void - */ - protected function handleTag_a_parser() - { - if (isset($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'])); - } - - /** - * handle <a> tags conversion - * - * @param array $tag - * @param string $buffer - * @return string The markdownified link - */ - protected function handleTag_a_converter($tag, $buffer) - { - if (empty($tag['href']) && empty($tag['title'])) { - // empty links... testcase mania, who would possibly do anything like that?! - return '[' . $buffer . ']()'; - } - - if ($buffer == $tag['href'] && empty($tag['title'])) { - // <http://example.com> - return '<' . $buffer . '>'; - } - - $bufferDecoded = $this->decode(trim($buffer)); - if (substr($tag['href'], 0, 7) == 'mailto:' && 'mailto:' . $bufferDecoded == $tag['href']) { - if (is_null($tag['title'])) { - // <mail@example.com> - return '<' . $bufferDecoded . '>'; - } - // [mail@example.com][1] - // ... - // [1]: mailto:mail@example.com Title - $tag['href'] = 'mailto:' . $bufferDecoded; - } - - if ($this->linkPosition == self::LINK_IN_PARAGRAPH) { - return '[' . $buffer . '](' . $this->getLinkReference($tag) . ')'; - } - - // [This link][id] - foreach ($this->footnotes as $tag2) { - if ($tag2['href'] == $tag['href'] && $tag2['title'] === $tag['title']) { - $tag['linkID'] = $tag2['linkID']; - break; - } - } - if (!isset($tag['linkID'])) { - $tag['linkID'] = count($this->footnotes) + 1; - array_push($this->footnotes, $tag); - } - - return '[' . $buffer . '][' . $tag['linkID'] . ']'; - } - - /** - * handle <img /> tags - * - * @param void - * @return void - */ - protected function handleTag_img() - { - if (!$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 test cases 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']); - } - - $out = '![' . $this->parser->tagAttributes['alt'] . ']'; - if ($this->linkPosition == self::LINK_IN_PARAGRAPH) { - $out .= '(' . $this->parser->tagAttributes['src']; - if ($this->parser->tagAttributes['title']) { - $out .= ' "' . $this->parser->tagAttributes['title'] . '"'; - } - $out .= ')'; - $this->out($out, true); - return; - } - - // ![This image][id] - $link_id = false; - if (!empty($this->footnotes)) { - foreach ($this->footnotes as $tag) { - if ($tag['href'] == $this->parser->tagAttributes['src'] - && $tag['title'] === $this->parser->tagAttributes['title'] - ) { - $link_id = $tag['linkID']; - break; - } - } - } - if (!$link_id) { - $link_id = count($this->footnotes) + 1; - $tag = array( - 'href' => $this->parser->tagAttributes['src'], - 'linkID' => $link_id, - 'title' => $this->parser->tagAttributes['title'] - ); - array_push($this->footnotes, $tag); - } - $out .= '[' . $link_id . ']'; - - $this->out($out, true); - } - - /** - * handle <code> tags - * - * @param void - * @return void - */ - protected 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 . $ticks, true); - } - } - - /** - * handle <pre> tags - * - * @param void - * @return void - */ - protected function handleTag_pre() - { - if ($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 - */ - protected function handleTag_blockquote() - { - $this->indent('> '); - } - - /** - * handle <ul> tags - * - * @param void - * @return void - */ - protected function handleTag_ul() - { - if ($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 - */ - protected function handleTag_ol() - { - // same as above - $this->parser->tagAttributes['num'] = 0; - $this->handleTag_ul(); - } - - /** - * handle <li> tags - * - * @param void - * @return void - */ - protected function handleTag_li() - { - if ($this->parent() == 'ol') { - $parent =& $this->getStacked('ol'); - if ($this->parser->isStartTag) { - $parent['num']++; - $this->out(str_repeat(' ', 3 - strlen($parent['num'])) . $parent['num'] . '. ', true); - } - } else { - if ($this->parser->isStartTag) { - $this->out(' * ', true); - } - } - $this->indent(' ', false); - if (!$this->parser->isStartTag) { - $this->setLineBreaks(1); - } - } - - /** - * handle <hr /> tags - * - * @param void - * @return void - */ - protected function handleTag_hr() - { - if (!$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 - */ - protected function handleTag_br() - { - $this->out(" \n" . $this->indent, true); - $this->parser->html = ltrim($this->parser->html); - } - - /** - * add current node to the stack - * this only stores the attributes - * - * @param void - * @return void - */ - protected function stack() - { - if (!isset($this->stack[$this->parser->tagName])) { - $this->stack[$this->parser->tagName] = array(); - } - array_push($this->stack[$this->parser->tagName], $this->parser->tagAttributes); - } - - /** - * remove current tag from stack - * - * @param void - * @return array - */ - protected function unstack() - { - if (!isset($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 $tagName - * @return array - */ - protected function &getStacked($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 $number - * @return void - */ - protected function setLineBreaks($number) - { - if ($this->lineBreaks < $number) { - $this->lineBreaks = $number; - } - } - - /** - * buffer next parser output until unbuffer() is called - * - * @param void - * @return void - */ - protected function buffer() - { - array_push($this->buffer, ''); - } - - /** - * end current buffer and return buffered output - * - * @param void - * @return string - */ - protected 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 - * @param boolean $nowrap - * @return void - */ - protected function out($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; - } - } - } - - /** - * indent next output (start tag) or unindent (end tag) - * - * @param string $str indentation - * @param bool $output add indendation to output - * @return void - */ - protected function indent($str, $output = true) - { - if ($this->parser->isStartTag) { - $this->indent .= $str; - if ($output) { - $this->out($str, true); - } - } else { - $this->indent = substr($this->indent, 0, -strlen($str)); - } - } - - /** - * decode email addresses - * - * @author derernst@gmx.ch <http://www.php.net/manual/en/function.html-entity-decode.php#68536> - * @author Milian Wolff <http://milianw.de> - */ - protected function decode($text, $quote_style = ENT_QUOTES) - { - return htmlspecialchars_decode($text, $quote_style); - } - - /** - * callback for decode() which converts a hexadecimal entity to UTF-8 - * - * @param array $matches - * @return string UTF-8 encoded - */ - protected function _decode_hex($matches) - { - return $this->unichr(hexdec($matches[1])); - } - - /** - * callback for decode() which converts a numerical entity to UTF-8 - * - * @param array $matches - * @return string UTF-8 encoded - */ - protected function _decode_numeric($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 $matches - * @return string UTF-8 encoded - */ - protected function unichr($dec) - { - if ($dec < 128) { - $utf = chr($dec); - } elseif ($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 $str - * @return int - * - * @author dtorop 932 at hotmail dot com <http://www.php.net/manual/en/function.strlen.php#37975> - * @author Milian Wolff <http://milianw.de> - */ - protected function strlen($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 $what - * @return string - */ - protected function wordwrap($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 $tagName - * @return bool - */ - protected function hasParent($tagName) - { - return in_array($tagName, $this->parser->openTags); - } - - /** - * get tagName of direct parent tag - * - * @param void - * @return string $tagName - */ - protected function parent() - { - return end($this->parser->openTags); - } - - /** - * Trims whitespace in block-level elements, on the left side. - */ - protected function fixBlockElementSpacing() - { - if ($this->parser->isStartTag) { - $this->parser->html = ltrim($this->parser->html); - } - } - - /** - * Moves leading/trailing whitespace from inline elements outside of the - * element. This is to fix cases like `<strong> Text</strong>`, which if - * converted to `** strong**` would be incorrect Markdown. - * - * Examples: - * - * * leading: `<strong> Text</strong>` becomes ` <strong>Text</strong>` - * * trailing: `<strong>Text </strong>` becomes `<strong>Text</strong> ` - */ - protected function fixInlineElementSpacing() - { - if ($this->parser->isStartTag) { - // move spaces after the start element to before the element - if (preg_match('~^(\s+)~', $this->parser->html, $matches)) { - $this->out($matches[1]); - $this->parser->html = ltrim($this->parser->html, " \t\0\x0B"); - } - } else { - if (!empty($this->buffer)) { - $str =& $this->buffer[count($this->buffer) - 1]; - } else { - $str =& $this->output; - } - - // move spaces before the end element to after the element - if (preg_match('~(\s+)$~', $str, $matches)) { - $str = rtrim($str, " \t\0\x0B"); - $this->parser->html = $matches[1] . $this->parser->html; - } - } - } - - /** - * Resetting the state forces the instance to behave as a fresh instance. - * Ideal for running within a loop where you want to maintain a single instance. - */ - protected function resetState() - { - $this->notConverted = array(); - $this->skipConversion = false; - $this->buffer = array(); - $this->indent = ''; - $this->stack = array(); - $this->lineBreaks = 0; - $this->lastClosedTag = ''; - $this->lastWasBlockTag = false; - $this->footnotes = array(); - } -} diff --git a/vendor/pixel418/markdownify/src/ConverterExtra.php b/vendor/pixel418/markdownify/src/ConverterExtra.php deleted file mode 100644 index 733955448..000000000 --- a/vendor/pixel418/markdownify/src/ConverterExtra.php +++ /dev/null @@ -1,573 +0,0 @@ -<?php - -/* This file is part of the Markdownify project, which is under LGPL license */ - -namespace Markdownify; - -class ConverterExtra extends Converter -{ - - /** - * table data, including rows with content and the maximum width of each col - * - * @var array - */ - protected $table = array(); - - /** - * current col - * - * @var int - */ - protected $col = -1; - - /** - * current row - * - * @var int - */ - protected $row = 0; - - /** - * constructor, see Markdownify::Markdownify() for more information - */ - public function __construct($linksAfterEachParagraph = self::LINK_AFTER_CONTENT, $bodyWidth = MDFY_BODYWIDTH, $keepHTML = MDFY_KEEPHTML) - { - parent::__construct($linksAfterEachParagraph, $bodyWidth, $keepHTML); - - // new markdownable tags & attributes - // header ids: # foo {bar} - $this->isMarkdownable['h1']['id'] = 'optional'; - $this->isMarkdownable['h1']['class'] = 'optional'; - $this->isMarkdownable['h2']['id'] = 'optional'; - $this->isMarkdownable['h2']['class'] = 'optional'; - $this->isMarkdownable['h3']['id'] = 'optional'; - $this->isMarkdownable['h3']['class'] = 'optional'; - $this->isMarkdownable['h4']['id'] = 'optional'; - $this->isMarkdownable['h4']['class'] = 'optional'; - $this->isMarkdownable['h5']['id'] = 'optional'; - $this->isMarkdownable['h5']['class'] = 'optional'; - $this->isMarkdownable['h6']['id'] = 'optional'; - $this->isMarkdownable['h6']['class'] = '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(); - // link class - $this->isMarkdownable['a']['id'] = 'optional'; - $this->isMarkdownable['a']['class'] = 'optional'; - // 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 $level 1-6 - * @return void - */ - protected function handleHeader($level) - { - if ($this->parser->isStartTag) { - $this->parser->tagAttributes['cssSelector'] = $this->getCurrentCssSelector(); - $this->stack(); - } else { - $tag = $this->unstack(); - if (!empty($tag['cssSelector'])) { - // {#id.class} - $this->out(' {' . $tag['cssSelector'] . '}'); - } - } - parent::handleHeader($level); - } - - /** - * handle <a> tags parsing - * - * @param void - * @return void - */ - protected function handleTag_a_parser() - { - parent::handleTag_a_parser(); - $this->parser->tagAttributes['cssSelector'] = $this->getCurrentCssSelector(); - } - - /** - * handle <a> tags conversion - * - * @param array $tag - * @param string $buffer - * @return string The markdownified link - */ - protected function handleTag_a_converter($tag, $buffer) - { - $output = parent::handleTag_a_converter($tag, $buffer); - if (!empty($tag['cssSelector'])) { - // [This link][id]{#id.class} - $output .= '{' . $tag['cssSelector'] . '}'; - } - - return $output; - } - - /** - * handle <abbr> tags - * - * @param void - * @return void - */ - protected function handleTag_abbr() - { - if ($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 - */ - protected 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", $out)); - } - } - - /** - * handle <table> tags - * - * @param void - * @return void - */ - protected function handleTag_table() - { - if ($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 - $separator = array(); - if (!isset($this->table['aligns'])) { - $this->table['aligns'] = array(); - } - // seperator with correct align identifiers - foreach ($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 $col - * @return void - */ - protected function alignTdContent(&$content, $col) - { - if (!isset($this->table['aligns'][$col])) { - $this->table['aligns'][$col] = 'left'; - } - 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(' ', $right); - break; - } - } - - /** - * handle <tr> tags - * - * @param void - * @return void - */ - protected function handleTag_tr() - { - if ($this->parser->isStartTag) { - $this->col = -1; - } else { - $this->row++; - } - } - - /** - * handle <td> tags - * - * @param void - * @return void - */ - protected function handleTag_td() - { - if ($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()); - if (!isset($this->table['col_widths'][$this->col])) { - $this->table['col_widths'][$this->col] = 0; - } - $this->table['col_widths'][$this->col] = max($this->table['col_widths'][$this->col], $this->strlen($buffer)); - $this->table['rows'][$this->row][$this->col] = $buffer; - } - } - - /** - * handle <th> tags - * - * @param void - * @return void - */ - protected function handleTag_th() - { - if (!$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] = ''; - } - } - $this->handleTag_td(); - } - - /** - * handle <dl> tags - * - * @param void - * @return void - */ - protected function handleTag_dl() - { - if (!$this->parser->isStartTag) { - $this->setLineBreaks(2); - } - } - - /** - * handle <dt> tags - * - * @param void - * @return void - **/ - protected function handleTag_dt() - { - if (!$this->parser->isStartTag) { - $this->setLineBreaks(1); - } - } - - /** - * handle <dd> tags - * - * @param void - * @return void - */ - protected function handleTag_dd() - { - if ($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 - */ - protected function handleTag_fnref() - { - $this->out('[^' . $this->parser->tagAttributes['target'] . ']'); - } - - /** - * handle <fn> tags (custom footnotes, see markdownify_extra::parseString() - * and markdownify_extra::_makeFootnotes()) - * - * @param void - * @return void - */ - protected function handleTag_fn() - { - if ($this->parser->isStartTag) { - $this->out('[^' . $this->parser->tagAttributes['name'] . ']:'); - $this->setLineBreaks(1); - } else { - $this->setLineBreaks(2); - } - $this->indent(' '); - } - - /** - * handle <footnotes> tag (custom footnotes, see markdownify_extra::parseString() - * and markdownify_extra::_makeFootnotes()) - * - * @param void - * @return void - */ - protected function handleTag_footnotes() - { - if (!$this->parser->isStartTag) { - $this->setLineBreaks(2); - } - } - - /** - * parse a HTML string, clean up footnotes prior - * - * @param string $HTML input - * @return string Markdown formatted output - */ - public function parseString($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 $matches - * @return string - */ - protected function _makeFootnotes($matches) - { - // <li id="fn:1"> - // ... - // <a href="#fnref:block" rev="footnote">↩</a></p> - // </li> - // => <fn name="1">...</fn> - // remove footnote link - $fns = preg_replace('@\s*( \s*)?<a href="#fnref:[^"]+" rev="footnote"[^>]*>↩</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); - } - - /** - * handle <a> tags parsing - * - * @param void - * @return void - */ - protected function getCurrentCssSelector() - { - $cssSelector = ''; - if (isset($this->parser->tagAttributes['id'])) { - $cssSelector .= '#' . $this->decode($this->parser->tagAttributes['id']); - } - if (isset($this->parser->tagAttributes['class'])) { - $classes = explode(' ', $this->decode($this->parser->tagAttributes['class'])); - $classes = array_filter($classes); - $cssSelector .= '.' . join('.', $classes); - } - return $cssSelector; - } -} diff --git a/vendor/pixel418/markdownify/src/Parser.php b/vendor/pixel418/markdownify/src/Parser.php deleted file mode 100644 index 90fcdf9f8..000000000 --- a/vendor/pixel418/markdownify/src/Parser.php +++ /dev/null @@ -1,564 +0,0 @@ -<?php - -/* This file is part of the Markdownify project, which is under LGPL license */ - -namespace Markdownify; - -class Parser -{ - public static $skipWhitespace = true; - public static $a_ord; - public static $z_ord; - public static $special_ords; - - /** - * tags which are always empty (<br /> etc.) - * - * @var array<string> - */ - public $emptyTags = array( - 'br', - 'hr', - 'input', - 'img', - 'area', - 'link', - 'meta', - 'param', - ); - - /** - * tags with preformatted text - * whitespaces wont be touched in them - * - * @var array<string> - */ - public $preformattedTags = array( - 'script', - 'style', - 'pre', - 'code', - ); - - /** - * supress HTML tags inside preformatted tags (see above) - * - * @var bool - */ - public $noTagsInCode = false; - - /** - * html to be parsed - * - * @var string - */ - public $html = ''; - - /** - * node type: - * - * - tag (see isStartTag) - * - text (includes cdata) - * - comment - * - doctype - * - pi (processing instruction) - * - * @var string - */ - public $nodeType = ''; - - /** - * current node content, i.e. either a - * simple string (text node), or something like - * <tag attrib="value"...> - * - * @var string - */ - public $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 - */ - public $isStartTag = null; - - /** - * wether current node is an empty tag (<br />) or not (<a></a>) - * - * @var bool | null - */ - public $isEmptyTag = null; - - /** - * tag name - * - * @var string | null - */ - public $tagName = ''; - - /** - * attributes of current tag - * - * @var array (attribName=>value) | null - */ - public $tagAttributes = null; - - /** - * whether or not the actual context is a inline context - * - * @var bool | null - */ - public $isInlineContext = null; - - /** - * whether the current tag is a block element - * - * @var bool | null - */ - public $isBlockElement = null; - - /** - * whether the previous tag (browser) is a block element - * - * @var bool | null - */ - public $isNextToInlineContext = null; - - /** - * keep whitespace - * - * @var int - */ - public $keepWhitespace = 0; - - /** - * list of open tags - * count this to get current depth - * - * @var array - */ - public $openTags = array(); - - /** - * list of block elements - * - * @var array - * TODO: what shall we do with <del> and <ins> ?! - */ - public $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 $this->html prior! - * - * @param void - * @return bool - */ - public function nextNode() - { - if (empty($this->html)) { - // we are done with parsing the html string - - return false; - } - - 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', $pos); - - static::$skipWhitespace = true; - - return true; - } - if ($token == '<!DOCTYPE') { - // doctype - $this->setNode('doctype', strpos($this->html, '>') + 1); - - static::$skipWhitespace = true; - - return true; - } - if ($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); - $this->handleWhitespaces(); - - static::$skipWhitespace = true; - - return true; - } - if ($this->parseTag()) { - // seems to be a tag - // handle whitespaces - if ($this->isBlockElement) { - static::$skipWhitespace = true; - } else { - static::$skipWhitespace = false; - } - - return true; - } - } - if ($this->keepWhitespace) { - static::$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); - $this->handleWhitespaces(); - if (static::$skipWhitespace && $this->node == ' ') { - return $this->nextNode(); - } - $this->isInlineContext = true; - static::$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 - */ - protected function parseTag() - { - if (!isset(static::$a_ord)) { - static::$a_ord = ord('a'); - static::$z_ord = ord('z'); - static::$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 >= static::$a_ord && $pos_ord <= static::$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 >= static::$a_ord && $pos_ord <= static::$z_ord) || in_array($pos_ord, static::$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]; - $this->isNextToInlineContext = $isStartTag && $this->isInlineContext; - $this->isInlineContext = !$this->isBlockElement; - return true; - } - - /** - * handle invalid tags - * - * @param void - * @return void - */ - protected function invalidTag() - { - $this->html = substr_replace($this->html, '<', 0, 1); - } - - /** - * update all vars and make $this->html shorter - * - * @param string $type see description for $this->nodeType - * @param int $pos to which position shall we cut? - * @return void - */ - protected function setNode($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 $str - * @return bool - */ - protected function match($str) - { - return substr($this->html, 0, strlen($str)) == $str; - } - - /** - * truncate whitespaces - * - * @param void - * @return void - */ - protected function handleWhitespaces() - { - if ($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 - */ - protected 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('"', '"', $value) . '"'; - } - if ($this->isEmptyTag) { - $this->node .= ' /'; - } - $this->node .= '>'; - } -} |