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authorKlaus Weidenbach <Klaus.Weidenbach@gmx.net>2017-05-23 00:32:11 +0200
committerKlaus Weidenbach <Klaus.Weidenbach@gmx.net>2017-05-23 00:32:11 +0200
commit547df2219ab4b870256f2ed90e36b97d8bf200bf (patch)
tree3e990b35eb939911bb7949c2f5d633fa3d788faf /vendor/pixel418/markdownify/src/Parser.php
parent50e9d024581ddf57f37a6302bc089a88237657bb (diff)
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Replace Mardownify library with html-to-markdown library.
Diffstat (limited to 'vendor/pixel418/markdownify/src/Parser.php')
-rw-r--r--vendor/pixel418/markdownify/src/Parser.php564
1 files changed, 0 insertions, 564 deletions
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
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@@ -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, '&lt;', 0, 1);
- }
-
- /**
- * update all vars and make $this->html shorter
- *
- * @param string $type see description for $this->nodeType
- * @param int $pos to which position shall we cut?
- * @return void
- */
- protected function setNode($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('"', '&quot;', $value) . '"';
- }
- if ($this->isEmptyTag) {
- $this->node .= ' /';
- }
- $this->node .= '>';
- }
-}