840 lines
24 KiB
PHP
840 lines
24 KiB
PHP
<?php // phpcs:ignore SlevomatCodingStandard.TypeHints.DeclareStrictTypes.DeclareStrictTypesMissing
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/**
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* @author Niels A.D.
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* @author Todd Burry <todd@vanillaforums.com>
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* @copyright 2010 Niels A.D., 2014 Todd Burry
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* @license http://opensource.org/licenses/LGPL-2.1 LGPL-2.1
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* @package pQuery
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*/
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namespace MailPoetVendor\pQuery;
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if (!defined('ABSPATH')) exit;
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/**
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* Parses a HTML document
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*
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* Functionality can be extended by overriding functions or adjusting the tag map.
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* Document may contain small errors, the parser will try to recover and resume parsing.
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*/
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class HtmlParserBase extends TokenizerBase {
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/**
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* Tag open token, used for "<"
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*/
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const TOK_TAG_OPEN = 100;
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/**
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* Tag close token, used for ">"
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*/
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const TOK_TAG_CLOSE = 101;
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/**
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* Forward slash token, used for "/"
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*/
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const TOK_SLASH_FORWARD = 103;
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/**
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* Backslash token, used for "\"
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*/
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const TOK_SLASH_BACKWARD = 104;
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/**
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* String token, used for attribute values (" and ')
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*/
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const TOK_STRING = 104;
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/**
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* Equals token, used for "="
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*/
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const TOK_EQUALS = 105;
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/**
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* Sets HTML identifiers, tags/attributes are considered identifiers
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* @see TokenizerBase::$identifiers
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* @access private
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*/
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var $identifiers = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890:-_!?%';
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/**
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* Status of the parser (tagname, closing tag, etc)
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* @var array
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*/
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var $status = array();
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/**
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* Map characters to match their tokens
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* @see TokenizerBase::$custom_char_map
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* @access private
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*/
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var $custom_char_map = array(
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'<' => self::TOK_TAG_OPEN,
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'>' => self::TOK_TAG_CLOSE,
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"'" => 'parse_string',
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'"' => 'parse_string',
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'/' => self::TOK_SLASH_FORWARD,
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'\\' => self::TOK_SLASH_BACKWARD,
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'=' => self::TOK_EQUALS
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);
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function __construct($doc = '', $pos = 0) {
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parent::__construct($doc, $pos);
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$this->parse_all();
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}
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#php4 PHP4 class constructor compatibility
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#function HtmlParserBase($doc = '', $pos = 0) {return $this->__construct($doc, $pos);}
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#php4e
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/**
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Callback functions for certain tags
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@var array (TAG_NAME => FUNCTION_NAME)
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@internal Function should be a method in the class
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@internal Tagname should be lowercase and is everything after <, e.g. "?php" or "!doctype"
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@access private
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*/
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var $tag_map = array(
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'!doctype' => 'parse_doctype',
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'?' => 'parse_php',
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'?php' => 'parse_php',
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'%' => 'parse_asp',
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'style' => 'parse_style',
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'script' => 'parse_script'
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);
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/**
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* Parse a HTML string (attributes)
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* @internal Gets called with ' and "
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* @return int
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*/
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protected function parse_string() {
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if ($this->next_pos($this->doc[$this->pos], false) !== self::TOK_UNKNOWN) {
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--$this->pos;
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}
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return self::TOK_STRING;
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}
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/**
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* Parse text between tags
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* @internal Gets called between tags, uses {@link $status}[last_pos]
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* @internal Stores text in {@link $status}[text]
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*/
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function parse_text() {
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$len = $this->pos - 1 - $this->status['last_pos'];
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$this->status['text'] = (($len > 0) ? substr($this->doc, $this->status['last_pos'] + 1, $len) : '');
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}
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/**
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* Parse comment tags
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* @internal Gets called with HTML comments ("<!--")
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* @internal Stores text in {@link $status}[comment]
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* @return bool
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*/
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function parse_comment() {
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$this->pos += 3;
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if ($this->next_pos('-->', false) !== self::TOK_UNKNOWN) {
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$this->status['comment'] = $this->getTokenString(1, -1);
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--$this->pos;
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} else {
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$this->status['comment'] = $this->getTokenString(1, -1);
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$this->pos += 2;
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}
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$this->status['last_pos'] = $this->pos;
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return true;
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}
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/**
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* Parse doctype tag
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* @internal Gets called with doctype ("<!doctype")
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* @internal Stores text in {@link $status}[dtd]
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* @return bool
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*/
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function parse_doctype() {
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$start = $this->pos;
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if ($this->next_search('[>', false) === self::TOK_UNKNOWN) {
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if ($this->doc[$this->pos] === '[') {
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if (($this->next_pos(']', false) !== self::TOK_UNKNOWN) || ($this->next_pos('>', false) !== self::TOK_UNKNOWN)) {
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$this->addError('Invalid doctype');
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return false;
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}
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}
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$this->token_start = $start;
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$this->status['dtd'] = $this->getTokenString(2, -1);
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$this->status['last_pos'] = $this->pos;
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return true;
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} else {
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$this->addError('Invalid doctype');
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return false;
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}
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}
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/**
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* Parse cdata tag
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* @internal Gets called with cdata ("<![cdata")
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* @internal Stores text in {@link $status}[cdata]
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* @return bool
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*/
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function parse_cdata() {
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if ($this->next_pos(']]>', false) === self::TOK_UNKNOWN) {
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$this->status['cdata'] = $this->getTokenString(9, -1);
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$this->status['last_pos'] = $this->pos + 2;
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return true;
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} else {
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$this->addError('Invalid cdata tag');
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return false;
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}
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}
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/**
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* Parse php tags
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* @internal Gets called with php tags ("<?php")
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* @return bool
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*/
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function parse_php() {
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$start = $this->pos;
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if ($this->next_pos('?>', false) !== self::TOK_UNKNOWN) {
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$this->pos -= 2; //End of file
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}
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$len = $this->pos - 1 - $start;
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$this->status['text'] = (($len > 0) ? substr($this->doc, $start + 1, $len) : '');
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$this->status['last_pos'] = ++$this->pos;
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return true;
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}
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/**
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* Parse asp tags
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* @internal Gets called with asp tags ("<%")
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* @return bool
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*/
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function parse_asp() {
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$start = $this->pos;
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if ($this->next_pos('%>', false) !== self::TOK_UNKNOWN) {
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$this->pos -= 2; //End of file
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}
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$len = $this->pos - 1 - $start;
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$this->status['text'] = (($len > 0) ? substr($this->doc, $start + 1, $len) : '');
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$this->status['last_pos'] = ++$this->pos;
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return true;
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}
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/**
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* Parse style tags
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* @internal Gets called with php tags ("<style>")
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* @return bool
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*/
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function parse_style() {
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if ($this->parse_attributes() && ($this->token === self::TOK_TAG_CLOSE) && ($start = $this->pos) && ($this->next_pos('</style>', false) === self::TOK_UNKNOWN)) {
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$len = $this->pos - 1 - $start;
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$this->status['text'] = (($len > 0) ? substr($this->doc, $start + 1, $len) : '');
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$this->pos += 7;
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$this->status['last_pos'] = $this->pos;
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return true;
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} else {
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$this->addError('No end for style tag found');
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return false;
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}
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}
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/**
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* Parse script tags
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* @internal Gets called with php tags ("<script>")
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* @return bool
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*/
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function parse_script() {
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if ($this->parse_attributes() && ($this->token === self::TOK_TAG_CLOSE) && ($start = $this->pos) && ($this->next_pos('</script>', false) === self::TOK_UNKNOWN)) {
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$len = $this->pos - 1 - $start;
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$this->status['text'] = (($len > 0) ? substr($this->doc, $start + 1, $len) : '');
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$this->pos += 8;
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$this->status['last_pos'] = $this->pos;
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return true;
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} else {
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$this->addError('No end for script tag found');
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return false;
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}
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}
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/**
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* Parse conditional tags (+ all conditional tags inside)
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* @internal Gets called with IE conditionals ("<![if]" and "<!--[if]")
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* @internal Stores condition in {@link $status}[tag_condition]
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* @return bool
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*/
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function parse_conditional() {
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if ($this->status['closing_tag']) {
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$this->pos += 8;
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} else {
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$this->pos += (($this->status['comment']) ? 5 : 3);
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if ($this->next_pos(']', false) !== self::TOK_UNKNOWN) {
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$this->addError('"]" not found in conditional tag');
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return false;
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}
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$this->status['tag_condition'] = $this->getTokenString(0, -1);
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}
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if ($this->next_no_whitespace() !== self::TOK_TAG_CLOSE) {
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$this->addError('No ">" tag found 2 for conditional tag');
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return false;
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}
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if ($this->status['comment']) {
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$this->status['last_pos'] = $this->pos;
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if ($this->next_pos('-->', false) !== self::TOK_UNKNOWN) {
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$this->addError('No ending tag found for conditional tag');
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$this->pos = $this->size - 1;
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$len = $this->pos - 1 - $this->status['last_pos'];
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$this->status['text'] = (($len > 0) ? substr($this->doc, $this->status['last_pos'] + 1, $len) : '');
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} else {
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$len = $this->pos - 10 - $this->status['last_pos'];
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$this->status['text'] = (($len > 0) ? substr($this->doc, $this->status['last_pos'] + 1, $len) : '');
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$this->pos += 2;
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}
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}
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$this->status['last_pos'] = $this->pos;
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return true;
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}
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/**
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* Parse attributes (names + value)
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* @internal Stores attributes in {@link $status}[attributes] (array(ATTR => VAL))
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* @return bool
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*/
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function parse_attributes() {
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$this->status['attributes'] = array();
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while ($this->next_no_whitespace() === self::TOK_IDENTIFIER) {
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$attr = $this->getTokenString();
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if (($attr === '?') || ($attr === '%')) {
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//Probably closing tags
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break;
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}
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if ($this->next_no_whitespace() === self::TOK_EQUALS) {
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if ($this->next_no_whitespace() === self::TOK_STRING) {
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$val = $this->getTokenString(1, -1);
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} else {
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$this->token_start = $this->pos;
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if (!isset($stop)) {
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$stop = $this->whitespace;
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$stop['<'] = true;
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$stop['>'] = true;
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}
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while ((++$this->pos < $this->size) && (!isset($stop[$this->doc[$this->pos]]))) {
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// Do nothing.
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}
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--$this->pos;
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$val = $this->getTokenString();
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if (trim($val) === '') {
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$this->addError('Invalid attribute value');
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return false;
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}
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}
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} else {
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$val = $attr;
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$this->pos = (($this->token_start) ? $this->token_start : $this->pos) - 1;
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}
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$this->status['attributes'][$attr] = $val;
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}
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return true;
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}
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/**
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* Default callback for tags
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* @internal Gets called after the tagname (<html*ENTERS_HERE* attribute="value">)
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* @return bool
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*/
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function parse_tag_default() {
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if ($this->status['closing_tag']) {
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$this->status['attributes'] = array();
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$this->next_no_whitespace();
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} else {
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if (!$this->parse_attributes()) {
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return false;
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}
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}
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if ($this->token !== self::TOK_TAG_CLOSE) {
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if ($this->token === self::TOK_SLASH_FORWARD) {
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$this->status['self_close'] = true;
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$this->next();
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} elseif ((($this->status['tag_name'][0] === '?') && ($this->doc[$this->pos] === '?')) || (($this->status['tag_name'][0] === '%') && ($this->doc[$this->pos] === '%'))) {
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$this->status['self_close'] = true;
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$this->pos++;
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if (isset($this->char_map[$this->doc[$this->pos]]) && (!is_string($this->char_map[$this->doc[$this->pos]]))) {
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$this->token = $this->char_map[$this->doc[$this->pos]];
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} else {
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$this->token = self::TOK_UNKNOWN;
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}
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}/* else {
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$this->status['self_close'] = false;
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}*/
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}
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if ($this->token !== self::TOK_TAG_CLOSE) {
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$this->addError('Expected ">", but found "'.$this->getTokenString().'"');
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if ($this->next_pos('>', false) !== self::TOK_UNKNOWN) {
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$this->addError('No ">" tag found for "'.$this->status['tag_name'].'" tag');
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return false;
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}
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}
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return true;
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}
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/**
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* Parse tag
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* @internal Gets called after opening tag (<*ENTERS_HERE*html attribute="value">)
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* @internal Stores information about the tag in {@link $status} (comment, closing_tag, tag_name)
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* @return bool
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*/
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function parse_tag() {
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$start = $this->pos;
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$this->status['self_close'] = false;
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$this->parse_text();
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$next = (($this->pos + 1) < $this->size) ? $this->doc[$this->pos + 1] : '';
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if ($next === '!') {
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$this->status['closing_tag'] = false;
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if (substr($this->doc, $this->pos + 2, 2) === '--') {
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$this->status['comment'] = true;
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if (($this->doc[$this->pos + 4] === '[') && (strcasecmp(substr($this->doc, $this->pos + 5, 2), 'if') === 0)) {
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return $this->parse_conditional();
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} else {
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return $this->parse_comment();
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}
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} else {
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$this->status['comment'] = false;
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if ($this->doc[$this->pos + 2] === '[') {
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if (strcasecmp(substr($this->doc, $this->pos + 3, 2), 'if') === 0) {
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return $this->parse_conditional();
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} elseif (strcasecmp(substr($this->doc, $this->pos + 3, 5), 'endif') === 0) {
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$this->status['closing_tag'] = true;
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return $this->parse_conditional();
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} elseif (strcasecmp(substr($this->doc, $this->pos + 3, 5), 'cdata') === 0) {
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return $this->parse_cdata();
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}
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}
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}
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} elseif ($next === '/') {
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$this->status['closing_tag'] = true;
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++$this->pos;
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} else {
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$this->status['closing_tag'] = false;
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}
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if ($this->next() !== self::TOK_IDENTIFIER) {
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$this->addError('Tagname expected');
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//if ($this->next_pos('>', false) === self::TOK_UNKNOWN) {
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$this->status['last_pos'] = $start - 1;
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return true;
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//} else {
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// return false;
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//}
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}
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$tag = $this->getTokenString();
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$this->status['tag_name'] = $tag;
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$tag = strtolower($tag);
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if (isset($this->tag_map[$tag])) {
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$res = $this->{$this->tag_map[$tag]}();
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} else {
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$res = $this->parse_tag_default();
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}
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$this->status['last_pos'] = $this->pos;
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return $res;
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}
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/**
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* Parse full document
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* @return bool
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*/
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function parse_all() {
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$this->errors = array();
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$this->status['last_pos'] = -1;
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if (($this->token === self::TOK_TAG_OPEN) || ($this->next_pos('<', false) === self::TOK_UNKNOWN)) {
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do {
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if (!$this->parse_tag()) {
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return false;
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}
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} while ($this->next_pos('<') !== self::TOK_NULL);
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}
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$this->pos = $this->size;
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$this->parse_text();
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return true;
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}
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}
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/**
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* Parses a HTML document into a HTML DOM
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*/
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class HtmlParser extends HtmlParserBase {
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/**
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* Root object
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* @internal If string, then it will create a new instance as root
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* @var DomNode
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*/
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var $root = 'MailPoetVendor\\pQuery\\DomNode';
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/**
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* Current parsing hierarchy
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* @internal Root is always at index 0, current tag is at the end of the array
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* @var array
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* @access private
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*/
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var $hierarchy = array();
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/**
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* Tags that don't need closing tags
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* @var array
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* @access private
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*/
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var $tags_selfclose = array(
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'area' => true,
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'base' => true,
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'basefont' => true,
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'br' => true,
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'col' => true,
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'command' => true,
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'embed' => true,
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'frame' => true,
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'hr' => true,
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'img' => true,
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'input' => true,
|
|
'ins' => true,
|
|
'keygen' => true,
|
|
'link' => true,
|
|
'meta' => true,
|
|
'param' => true,
|
|
'source' => true,
|
|
'track' => true,
|
|
'wbr' => true
|
|
);
|
|
|
|
/**
|
|
* Class constructor
|
|
* @param string $doc Document to be tokenized
|
|
* @param int $pos Position to start parsing
|
|
* @param DomNode $root Root node, null to auto create
|
|
*/
|
|
function __construct($doc = '', $pos = 0, $root = null) {
|
|
if ($root === null) {
|
|
$root = new $this->root('~root~', null);
|
|
}
|
|
$this->root =& $root;
|
|
|
|
parent::__construct($doc, $pos);
|
|
}
|
|
|
|
#php4 PHP4 class constructor compatibility
|
|
#function HtmlParser($doc = '', $pos = 0, $root = null) {return $this->__construct($doc, $pos, $root);}
|
|
#php4e
|
|
|
|
/**
|
|
* Class magic invoke method, performs {@link select()}
|
|
* @return array
|
|
* @access private
|
|
*/
|
|
function __invoke($query = '*') {
|
|
return $this->select($query);
|
|
}
|
|
|
|
/**
|
|
* Class magic toString method, performs {@link DomNode::toString()}
|
|
* @return string
|
|
* @access private
|
|
*/
|
|
function __toString() {
|
|
return $this->root->getInnerText();
|
|
}
|
|
|
|
/**
|
|
* Performs a css select query on the root node
|
|
* @see DomNode::select()
|
|
* @return array
|
|
*/
|
|
function select($query = '*', $index = false, $recursive = true, $check_self = false) {
|
|
return $this->root->select($query, $index, $recursive, $check_self);
|
|
}
|
|
|
|
/**
|
|
* Updates the current hierarchy status and checks for
|
|
* correct opening/closing of tags
|
|
* @param bool $self_close Is current tag self closing? Null to use {@link tags_selfclose}
|
|
* @internal This is were most of the nodes get added
|
|
* @access private
|
|
*/
|
|
protected function parse_hierarchy($self_close = null) {
|
|
if ($self_close === null) {
|
|
$this->status['self_close'] = ($self_close = isset($this->tags_selfclose[strtolower($this->status['tag_name'])]));
|
|
}
|
|
|
|
if ($self_close) {
|
|
if ($this->status['closing_tag']) {
|
|
|
|
//$c = end($this->hierarchy)->children
|
|
$c = $this->hierarchy[count($this->hierarchy) - 1]->children;
|
|
$found = false;
|
|
for ($count = count($c), $i = $count - 1; $i >= 0; $i--) {
|
|
if (strcasecmp($c[$i]->tag, $this->status['tag_name']) === 0) {
|
|
for($ii = $i + 1; $ii < $count; $ii++) {
|
|
$index = null; //Needs to be passed by ref
|
|
$c[$i + 1]->changeParent($c[$i], $index);
|
|
}
|
|
$c[$i]->self_close = false;
|
|
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!$found) {
|
|
$this->addError('Closing tag "'.$this->status['tag_name'].'" which is not open');
|
|
}
|
|
|
|
} elseif ($this->status['tag_name'][0] === '?') {
|
|
//end($this->hierarchy)->addXML($this->status['tag_name'], '', $this->status['attributes']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addXML($this->status['tag_name'], '', $this->status['attributes'], $index);
|
|
} elseif ($this->status['tag_name'][0] === '%') {
|
|
//end($this->hierarchy)->addASP($this->status['tag_name'], '', $this->status['attributes']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addASP($this->status['tag_name'], '', $this->status['attributes'], $index);
|
|
} else {
|
|
//end($this->hierarchy)->addChild($this->status);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
|
|
}
|
|
} elseif ($this->status['closing_tag']) {
|
|
$found = false;
|
|
for ($count = count($this->hierarchy), $i = $count - 1; $i >= 0; $i--) {
|
|
if (strcasecmp($this->hierarchy[$i]->tag, $this->status['tag_name']) === 0) {
|
|
|
|
for($ii = ($count - $i - 1); $ii >= 0; $ii--) {
|
|
$e = array_pop($this->hierarchy);
|
|
if ($ii > 0) {
|
|
$this->addError('Closing tag "'.$this->status['tag_name'].'" while "'.$e->tag.'" is not closed yet');
|
|
}
|
|
}
|
|
|
|
$found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!$found) {
|
|
$this->addError('Closing tag "'.$this->status['tag_name'].'" which is not open');
|
|
}
|
|
|
|
} else {
|
|
//$this->hierarchy[] = end($this->hierarchy)->addChild($this->status);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[] = $this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
|
|
}
|
|
}
|
|
|
|
function parse_cdata() {
|
|
if (!parent::parse_cdata()) {return false;}
|
|
|
|
//end($this->hierarchy)->addCDATA($this->status['cdata']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addCDATA($this->status['cdata'], $index);
|
|
return true;
|
|
}
|
|
|
|
function parse_comment() {
|
|
if (!parent::parse_comment()) {return false;}
|
|
|
|
//end($this->hierarchy)->addComment($this->status['comment']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addComment($this->status['comment'], $index);
|
|
return true;
|
|
}
|
|
|
|
function parse_conditional() {
|
|
if (!parent::parse_conditional()) {return false;}
|
|
|
|
if ($this->status['comment']) {
|
|
//$e = end($this->hierarchy)->addConditional($this->status['tag_condition'], true);
|
|
$index = null; //Needs to be passed by ref
|
|
$e = $this->hierarchy[count($this->hierarchy) - 1]->addConditional($this->status['tag_condition'], true, $index);
|
|
if ($this->status['text'] !== '') {
|
|
$index = null; //Needs to be passed by ref
|
|
$e->addText($this->status['text'], $index);
|
|
}
|
|
} else {
|
|
if ($this->status['closing_tag']) {
|
|
$this->parse_hierarchy(false);
|
|
} else {
|
|
//$this->hierarchy[] = end($this->hierarchy)->addConditional($this->status['tag_condition'], false);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[] = $this->hierarchy[count($this->hierarchy) - 1]->addConditional($this->status['tag_condition'], false, $index);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function parse_doctype() {
|
|
if (!parent::parse_doctype()) {return false;}
|
|
|
|
//end($this->hierarchy)->addDoctype($this->status['dtd']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addDoctype($this->status['dtd'], $index);
|
|
return true;
|
|
}
|
|
|
|
function parse_php() {
|
|
if (!parent::parse_php()) {return false;}
|
|
|
|
//end($this->hierarchy)->addXML('php', $this->status['text']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addXML('php', $this->status['text'], $index);
|
|
return true;
|
|
}
|
|
|
|
function parse_asp() {
|
|
if (!parent::parse_asp()) {return false;}
|
|
|
|
//end($this->hierarchy)->addASP('', $this->status['text']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addASP('', $this->status['text'], $index);
|
|
return true;
|
|
}
|
|
|
|
function parse_script() {
|
|
if (!parent::parse_script()) {return false;}
|
|
|
|
//$e = end($this->hierarchy)->addChild($this->status);
|
|
$index = null; //Needs to be passed by ref
|
|
$e = $this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
|
|
if ($this->status['text'] !== '') {
|
|
$index = null; //Needs to be passed by ref
|
|
$e->addText($this->status['text'], $index);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function parse_style() {
|
|
if (!parent::parse_style()) {return false;}
|
|
|
|
//$e = end($this->hierarchy)->addChild($this->status);
|
|
$index = null; //Needs to be passed by ref
|
|
$e = $this->hierarchy[count($this->hierarchy) - 1]->addChild($this->status, $index);
|
|
if ($this->status['text'] !== '') {
|
|
$index = null; //Needs to be passed by ref
|
|
$e->addText($this->status['text'], $index);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function parse_tag_default() {
|
|
if (!parent::parse_tag_default()) {return false;}
|
|
|
|
$this->parse_hierarchy(($this->status['self_close']) ? true : null);
|
|
return true;
|
|
}
|
|
|
|
function parse_text() {
|
|
parent::parse_text();
|
|
if ($this->status['text'] !== '') {
|
|
//end($this->hierarchy)->addText($this->status['text']);
|
|
$index = null; //Needs to be passed by ref
|
|
$this->hierarchy[count($this->hierarchy) - 1]->addText($this->status['text'], $index);
|
|
}
|
|
}
|
|
|
|
function parse_all() {
|
|
$this->hierarchy = array(&$this->root);
|
|
return ((parent::parse_all()) ? $this->root : false);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* HTML5 specific parser (adds support for omittable closing tags)
|
|
*/
|
|
class Html5Parser extends HtmlParser {
|
|
|
|
/**
|
|
* Tags with ommitable closing tags
|
|
* @var array array('tag2' => 'tag1') will close tag1 if following (not child) tag is tag2
|
|
* @access private
|
|
*/
|
|
var $tags_optional_close = array(
|
|
//Current tag => Previous tag
|
|
'li' => array('li' => true),
|
|
'dt' => array('dt' => true, 'dd' => true),
|
|
'dd' => array('dt' => true, 'dd' => true),
|
|
'address' => array('p' => true),
|
|
'article' => array('p' => true),
|
|
'aside' => array('p' => true),
|
|
'blockquote' => array('p' => true),
|
|
'dir' => array('p' => true),
|
|
'div' => array('p' => true),
|
|
'dl' => array('p' => true),
|
|
'fieldset' => array('p' => true),
|
|
'footer' => array('p' => true),
|
|
'form' => array('p' => true),
|
|
'h1' => array('p' => true),
|
|
'h2' => array('p' => true),
|
|
'h3' => array('p' => true),
|
|
'h4' => array('p' => true),
|
|
'h5' => array('p' => true),
|
|
'h6' => array('p' => true),
|
|
'header' => array('p' => true),
|
|
'hgroup' => array('p' => true),
|
|
'hr' => array('p' => true),
|
|
'menu' => array('p' => true),
|
|
'nav' => array('p' => true),
|
|
'ol' => array('p' => true),
|
|
'p' => array('p' => true),
|
|
'pre' => array('p' => true),
|
|
'section' => array('p' => true),
|
|
'table' => array('p' => true),
|
|
'ul' => array('p' => true),
|
|
'rt' => array('rt' => true, 'rp' => true),
|
|
'rp' => array('rt' => true, 'rp' => true),
|
|
'optgroup' => array('optgroup' => true, 'option' => true),
|
|
'option' => array('option'),
|
|
'tbody' => array('thread' => true, 'tbody' => true, 'tfoot' => true),
|
|
'tfoot' => array('thread' => true, 'tbody' => true),
|
|
'tr' => array('tr' => true),
|
|
'td' => array('td' => true, 'th' => true),
|
|
'th' => array('td' => true, 'th' => true),
|
|
'body' => array('head' => true)
|
|
);
|
|
|
|
protected function parse_hierarchy($self_close = null) {
|
|
$tag_curr = strtolower($this->status['tag_name']);
|
|
if ($self_close === null) {
|
|
$this->status['self_close'] = ($self_close = isset($this->tags_selfclose[$tag_curr]));
|
|
}
|
|
|
|
if (! ($self_close || $this->status['closing_tag'])) {
|
|
//$tag_prev = strtolower(end($this->hierarchy)->tag);
|
|
$tag_prev = strtolower($this->hierarchy[count($this->hierarchy) - 1]->tag);
|
|
if (isset($this->tags_optional_close[$tag_curr]) && isset($this->tags_optional_close[$tag_curr][$tag_prev])) {
|
|
array_pop($this->hierarchy);
|
|
}
|
|
}
|
|
|
|
return parent::parse_hierarchy($self_close);
|
|
}
|
|
}
|