<?php
/*******************************************************************************
Version: 0.98 ($Rev: 117 $)
Website: http://sourceforge.net/projects/simplehtmldom/
Author: S.C. Chen (hide@address.com)
Acknowledge: Jose Solorzano (https://sourceforge.net/projects/php-html/)
Contributions by: Yousuke Kumakura (Attribute filters)
Licensed under The MIT License
Redistributions of files must retain the above copyright notice.
*******************************************************************************/
define('HDOM_TYPE_ELEMENT', 1);
define('HDOM_TYPE_COMMENT', 2);
define('HDOM_TYPE_TEXT', 3);
define('HDOM_TYPE_ENDTAG', 4);
define('HDOM_TYPE_ROOT', 5);
define('HDOM_TYPE_UNKNOWN', 6);
define('HDOM_QUOTE_DOUBLE', 0);
define('HDOM_QUOTE_SINGLE', 1);
define('HDOM_QUOTE_NO', 3);
define('HDOM_INFO_BEGIN', 0);
define('HDOM_INFO_END', 1);
define('HDOM_INFO_QUOTE', 2);
define('HDOM_INFO_SPACE', 3);
define('HDOM_INFO_TEXT', 4);
define('HDOM_INFO_INNER', 5);
define('HDOM_INFO_OUTER', 6);
define('HDOM_INFO_ENDSPACE',7);
// helper functions
// -----------------------------------------------------------------------------
// get dom form file
function file_get_dom() {
$dom = new simple_html_dom;
$args = func_get_args();
$dom->load(call_user_func_array('file_get_contents', $args), true);
return $dom;
}
// get dom form string
function str_get_dom($str, $lowercase=true) {
$dom = new simple_html_dom;
$dom->load($str, $lowercase);
return $dom;
}
// simple html dom node
// -----------------------------------------------------------------------------
class simple_html_dom_node {
public $tag = 'text';
public $nodetype = HDOM_TYPE_TEXT;
public $attr = array();
public $parent = null;
public $children = array();
public $linenumber = 0; // customized by UOT, ATRC, cindy Li
public $colnumber = 0; // customized by UOT, ATRC, cindy Li
public $dom = null;
public $nodes = array();
public $info = array(
HDOM_INFO_BEGIN=>-1,
HDOM_INFO_END=>0,
HDOM_INFO_TEXT=>'',
HDOM_INFO_ENDSPACE=>'',
HDOM_INFO_QUOTE=>array(),
HDOM_INFO_SPACE=>array()
);
function __construct($dom=null) {
$this->dom = $dom;
}
// clean up memory due to php5 circular references memory leak...
function clear() {
unset($this->tag);
unset($this->nodetype);
unset($this->attr);
unset($this->parent);
unset($this->children);
unset($this->nodes);
unset($this->dom);
unset($this->info);
unset($this->linenumber); // customized by UOT, ATRC, cindy Li
unset($this->colnumber); // customized by UOT, ATRC, cindy Li
}
// returns the parent of node
function parent() {
return $this->parent;
}
// returns children of node
function children($idx=-1) {
if ($idx==-1) return $this->children;
if (isset($this->children[$idx])) return $this->children[$idx];
return null;
}
// returns the first child of node
function first_child() {
if (count($this->children)>0) return $this->children[0];
return null;
}
// returns the last child of node
function last_child() {
if (($count=count($this->children))>0) return $this->children[$count-1];
return null;
}
// returns the next sibling of node
function next_sibling() {
if ($this->parent===null) return null;
$idx = 0;
$count = count($this->parent->children);
while ($idx<$count && $this!==$this->parent->children[$idx])
++$idx;
if (++$idx>=$count) return null;
return $this->parent->children[$idx];
}
// returns the previous sibling of node
function prev_sibling() {
if ($this->parent===null) return null;
$idx = 0;
$count = count($this->parent->children);
while ($idx<$count && $this!==$this->parent->children[$idx])
++$idx;
if (--$idx<0) return null;
return $this->parent->children[$idx];
}
// get dom node's inner html
function innertext() {
if (isset($this->info[HDOM_INFO_INNER])) return $this->info[HDOM_INFO_INNER];
switch ($this->nodetype) {
case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_COMMENT: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_UNKNOWN: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
}
$ret = '';
foreach($this->nodes as $n)
$ret .= $n->outertext();
return $ret;
}
// get dom node's outer text (with tag)
function outertext() {
if ($this->tag=='root') return $this->dom->save();
if (isset($this->info[HDOM_INFO_OUTER])) return $this->info[HDOM_INFO_OUTER];
// render begin tag
$ret = $this->dom->nodes[$this->info[HDOM_INFO_BEGIN]]->makeup();
// render inner text
if (isset($this->info[HDOM_INFO_INNER]))
$ret .= $this->info[HDOM_INFO_INNER];
else {
foreach($this->nodes as $n)
$ret .= $n->outertext();
}
// render end tag
if($this->info[HDOM_INFO_END])
$ret .= $this->dom->nodes[$this->info[HDOM_INFO_END]]->makeup($this->tag);
return $ret;
}
// get dom node's plain text
function plaintext() {
if (isset($this->info[HDOM_INFO_INNER])) return $this->info[HDOM_INFO_INNER];
switch ($this->nodetype) {
case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_COMMENT: return '';
case HDOM_TYPE_UNKNOWN: return '';
}
if (strcasecmp($this->tag, 'script')==0) return '';
if (strcasecmp($this->tag, 'style')==0) return '';
$ret = '';
foreach($this->nodes as $n)
$ret .= $n->plaintext();
return $ret;
}
// build node's text with tag
function makeup($tag=null) {
if ($tag===null) $tag = $this->tag;
switch($this->nodetype) {
case HDOM_TYPE_TEXT: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_COMMENT: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_UNKNOWN: return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
case HDOM_TYPE_ENDTAG: return '</'.$tag.'>';
}
$ret = '<'.$tag;
$i = 0;
foreach($this->attr as $key=>$val) {
// skip removed attribute
if ($val===null || $val===false) {
++$i;
continue;
}
$ret .= $this->info[HDOM_INFO_SPACE][$i][0];
//no value attr: nowrap, checked selected...
if ($val===true)
$ret .= $key;
else {
$quote = '';
switch($this->info[HDOM_INFO_QUOTE][$i]) {
case HDOM_QUOTE_DOUBLE: $quote = '"'; break;
case HDOM_QUOTE_SINGLE: $quote = '\''; break;
}
$ret .= $key.$this->info[HDOM_INFO_SPACE][$i][1].'='.$this->info[HDOM_INFO_SPACE][$i][2].$quote.$val.$quote;
}
++$i;
}
return $ret . $this->info[HDOM_INFO_ENDSPACE] . '>';
}
// find elements by css selector
function find($selector, $idx=-1) {
$selector = trim($selector);
if ($selector=='*') return $this->children;
$selectors = $this->parse_selector($selector);
if (($count=count($selectors))==0) return array();
$found_keys = array();
// find each selector
for ($c=0; $c<$count; ++$c) {
if (($levle=count($selectors[0]))==0) return array();
$head = array($this->info[HDOM_INFO_BEGIN]=>1);
// handle descendant selectors, no recursive!
for ($l=0; $l<$levle; ++$l) {
$ret = array();
foreach($head as $k=>$v) {
$n = ($k==-1) ? $this->dom->root : $this->dom->nodes[$k];
$n->seek($selectors[$c][$l], $ret);
}
$head = $ret;
}
foreach($head as $k=>$v) {
if (!isset($found_keys[$k]))
$found_keys[$k] = 1;
}
}
// sort keys
ksort($found_keys);
$found = array();
foreach($found_keys as $k=>$v)
$found[] = $this->dom->nodes[$k];
// return nth-element or array
if ($idx<0) return $found;
return (isset($found[$idx])) ? $found[$idx] : null;
}
protected function parse_selector($selector_string) {
// pattern of CSS selectors, modified from mootools
$pattern = "/([A-Za-z0-9_\\-:]*)(?:\#([\w-]+)|\.([\w-]+))?(?:\[(\w+)(?:([!*^$]?=)[\"']?([^\"']*)[\"']?)?])?/";
// handle multiple selectors
$selector_list = split(',', $selector_string);
$selectors = array();
foreach($selector_list as $selector) {
$result = array();
preg_match_all($pattern, trim($selector), $matches, PREG_SET_ORDER);
foreach ($matches as $m) {
list($tag, $key, $val, $exp) = array($m[1], null, null, '=');
if ($m[0]=='') continue;
if(!empty($m[2])) {$key='id'; $val=$m[2];}
if(!empty($m[3])) {$key='class'; $val=$m[3];}
if(!empty($m[4])) {$key=$m[4];}
if(!empty($m[5])) {$exp=$m[5];}
if(!empty($m[6])) {$val=$m[6];}
// convert to lowercase
if ($this->dom->lowercase) {$tag=strtolower($tag); $key=strtolower($key);}
$result[] = array($tag, $key, $val, $exp);
}
$selectors[] = $result;
}
return $selectors;
}
// seek for given conditions
protected function seek($selector, &$ret) {
list($tag, $key, $val, $exp) = $selector;
$end = $this->info[HDOM_INFO_END];
if ($end==0)
$end = $this->parent->info[HDOM_INFO_END]-1;
for($i=$this->info[HDOM_INFO_BEGIN]+1; $i<$end; ++$i) {
$node = $this->dom->nodes[$i];
if ($node->nodetype==HDOM_TYPE_ENDTAG) continue;
$pass = true;
// compare tag
if ($tag && $tag!=$node->tag) {$pass=false;}
// compare key
if ($pass && $key && !(isset($node->attr[$key]))) {$pass=false;}
// compare value
if ($pass && $key && $val) {
$check = $this->match($exp, $val, $node->attr[$key]);
// handle multiple class
if (!$check && strcasecmp($key, 'class')==0) {
foreach(explode(' ',$node->attr[$key]) as $k) {
$check = $this->match($exp, $val, $k);
if ($check) break;
}
}
if (!$check)
$pass = false;
}
if ($pass)
$ret[$i] = 1;
}
unset($node);
}
protected function match($exp, $pattern, $value) {
$check = true;
switch ($exp) {
case '=':
$check = ($value===$pattern) ? true : false; break;
case '!=':
$check = ($value!==$pattern) ? true : false; break;
case '^=':
$check = (preg_match("/^".preg_quote($pattern,'/')."/", $value)) ? true : false; break;
case '$=':
$check = (preg_match("/".preg_quote($pattern,'/')."$/", $value)) ? true : false; break;
case '*=':
$check = (preg_match("/".preg_quote($pattern,'/')."/", $value)) ? true : false; break;
}
return $check;
}
function __toString() {
return $this->outertext();
}
function __get($name) {
if (isset($this->attr[$name])) return $this->attr[$name];
switch($name) {
case 'outertext': return $this->outertext();
case 'innertext': return $this->innertext();
case 'plaintext': return $this->plaintext();
default: return array_key_exists($name, $this->attr);
}
}
function __set($name, $value) {
switch($name) {
case 'outertext': return $this->info[HDOM_INFO_OUTER] = $value;
case 'innertext': return $this->info[HDOM_INFO_INNER] = $value;
case 'plaintext': return $this->dom->restore_noise($this->info[HDOM_INFO_TEXT]);
}
if (!isset($this->attr[$name])) {
$this->info[HDOM_INFO_SPACE][] = array(' ', '', '');
$this->info[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
}
$this->attr[$name] = $value;
}
function __isset($name) {
switch($name) {
case 'outertext': return true;
case 'innertext': return true;
case 'plaintext': return true;
}
//no value attr: nowrap, checked selected...
return (array_key_exists($name, $this->attr)) ? true : isset($this->attr[$name]);
}
// camel naming conventions
function getAttribute($name) {return $this->__get($name);}
function setAttribute($name, $value) {$this->__set($name, $value);}
function hasAttribute($name) {return $this->__isset($name);}
function removeAttribute($name) {$this->__set($name, null);}
function getElementById($id) {return $this->find("#$id", 0);}
function getElementsById($id, $idx=-1) {return $this->find("#$id", $idx);}
function getElementByTagName($name) {return $this->find($name, 0);}
function getElementsByTagName($name, $idx=-1) {return $this->find($name, $idx);}
function parentNode() {return $this->parent();}
function childNodes($idx=-1) {return $this->children($idx);}
function firstChild() {return $this->first_child();}
function lastChild() {return $this->last_child();}
function nextSibling() {return $this->next_sibling();}
function previousSibling() {return $this->prev_sibling();}
}
// simple html dom parser
// -----------------------------------------------------------------------------
class simple_html_dom {
public $nodes = array();
public $root = null;
public $lowercase = false;
protected $html = '';
protected $parent = null;
protected $pos;
protected $char;
protected $size;
protected $index;
public $callback = null;
protected $noise = array();
// use isset instead of in_array, performance boost about 30%...
protected $token_blank = array(' '=>1, "\t"=>1, "\r"=>1, "\n"=>1);
protected $token_equal = array(' '=>1, '='=>1, '/'=>1, '>'=>1, '<'=>1);
/* customized by UOT, ATRC, cindy Li */
protected $doctype_token_equal = array('>'=>1);
/* end of customized by UOT, ATRC, cindy Li */
protected $token_slash = array(' '=>1, '/'=>1, '>'=>1, "\r"=>1, "\n"=>1, "\t"=>1);
protected $token_attr = array(' '=>1, '>'=>1);
protected $self_closing_tags = array('img'=>1, 'br'=>1, 'input'=>1, 'meta'=>1, 'link'=>1, 'hr'=>1, 'base'=>1, 'embed'=>1, 'spacer'=>1);
protected $block_tags = array('div'=>1, 'span'=>1, 'table'=>1, 'form'=>1, 'dl'=>1, 'ol'=>1);
protected $optional_closing_tags = array(
'tr'=>array('tr'=>1, 'td'=>1, 'th'=>1),
'th'=>array('th'=>1),
'td'=>array('td'=>1),
'ul'=>array('ul'=>1, 'li'=>1),
'li'=>array('li'=>1),
'dt'=>array('dt'=>1, 'dd'=>1),
'dd'=>array('dd'=>1, 'dt'=>1),
'p'=>array('p'=>1),
);
protected $new_line = "\n";
// load html from string
function load($str, $lowercase=true) {
// prepare
$this->prepare($str, $lowercase);
// strip out comments
$this->remove_noise("'<!--(.*?)-->'is", false, false);
// strip out <style> tags
$this->remove_noise("'<\s*style[^>]*[^/]>(.*?)<\s*/\s*style\s*>'is", false, false);
$this->remove_noise("'<\s*style\s*>(.*?)<\s*/\s*style\s*>'is", false, false);
// strip out <script> tags
$this->remove_noise("'<\s*script[^>]*[^/]>(.*?)<\s*/\s*script\s*>'is", false, false);
$this->remove_noise("'<\s*script\s*>(.*?)<\s*/\s*script\s*>'is", false, false);
// strip out <pre> tags
$this->remove_noise("'<\s*pre[^>]*>(.*?)<\s*/\s*pre\s*>'is", false, false);
// strip out <code> tags
$this->remove_noise("'<\s*code[^>]*>(.*?)<\s*/\s*code\s*>'is", false, false);
// strip out server side scripts
$this->remove_noise("'(<\?)(.*?)(\?>)'is", false, false);
// parsing
while ($this->parse());
$this->root->info[HDOM_INFO_END] = $this->index;
}
// load html from file
function load_file() {
$args = func_get_args();
$this->load(call_user_func_array('file_get_contents', $args), true);
}
// set callback function
function set_callback($function_name) {
$this->callback = $function_name;
}
// save dom as string
function save($filepath='') {
$ret = '';
$count = count($this->nodes);
$func_callback = $this->callback;
for ($i=0; $i<$count; ++$i) {
// trigger callback
if ($func_callback!==null)
$handle = $func_callback($this->nodes[$i]);
// outertext defined
if (isset($this->nodes[$i]->info[HDOM_INFO_OUTER])) {
$ret .= $this->nodes[$i]->info[HDOM_INFO_OUTER];
if ($this->nodes[$i]->info[HDOM_INFO_END]>0)
$i = $this->nodes[$i]->info[HDOM_INFO_END];
continue;
}
$ret .= $this->nodes[$i]->makeup();
// innertext defined
if (isset($this->nodes[$i]->info[HDOM_INFO_INNER]) && $this->nodes[$i]->info[HDOM_INFO_END]>0) {
$ret .= $this->nodes[$i]->info[HDOM_INFO_INNER];
if ($this->nodes[$i]->info[HDOM_INFO_END]-1>$i)
$i = $this->nodes[$i]->info[HDOM_INFO_END]-1;
}
}
if ($filepath!=='') file_put_contents($filepath, $ret);
return $ret;
}
// find dom node by css selector
function find($selector, $idx=-1) {
return $this->root->find($selector, $idx);
}
// prepare HTML data and init everything
function prepare($str, $lowercase=true) {
$this->clear();
$this->noise = array();
$this->nodes = array();
$this->html = $str;
$this->lowercase = $lowercase;
$this->index = 0;
$this->pos = 0;
$this->root = new simple_html_dom_node($this);
$this->root->tag = 'root';
$this->root->nodetype = HDOM_TYPE_ROOT;
$this->parent = $this->root;
// set the length of content
$this->size = strlen($str);
if ($this->size>0) $this->char = $this->html[0];
// $this->new_line = $this->find_new_line();
}
// clean up memory due to php5 circular references memory leak...
function clear() {
foreach($this->nodes as $n) {
$n->clear();
unset($n);
}
if (isset($this->parent)) {$this->parent->clear(); unset($this->parent);}
if (isset($this->root)) {$this->root->clear(); unset($this->root);}
unset($this->html);
unset($this->noise);
}
// find new line character used in html
// function find_new_line()
// {
// foreach ($this->new_line_array as $new_line)
// {
// if (preg_match('/'.preg_quote($new_line).'/', $this->html) > 0)
// {
// $used_new_line = $new_line;
// break;
// }
// }
//
// return $used_new_line;
// }
// parse html content
function parse() {
$s = $this->copy_until_char('<');
if ($s=='') return $this->read_tag();
// text
$node = new simple_html_dom_node($this);
$this->nodes[] = $node;
$node->info[HDOM_INFO_BEGIN] = $this->index;
$node->info[HDOM_INFO_TEXT] = $s;
$node->parent = $this->parent;
$this->parent->nodes[] = $node;
++$this->index;
return $node;
}
// read tag info
protected function read_tag() {
if ($this->char!='<') {
$this->root->info[HDOM_INFO_END] = $this->index;
return null;
}
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
$node = new simple_html_dom_node($this);
$this->nodes[] = $node;
$node->info[HDOM_INFO_BEGIN] = $this->index;
++$this->index;
// end tag
if ($this->char=='/') {
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
$this->skip($this->token_blank);
$node->nodetype = HDOM_TYPE_ENDTAG;
$node->tag = $this->copy_until_char('>');
$tag_lower = strtolower($node->tag);
if ($this->lowercase) $node->tag = $tag_lower;
// mapping parent node
if (strtolower($this->parent->tag)!==$tag_lower) {
if (isset($this->block_tags[$tag_lower])) {
$this->parent->info[HDOM_INFO_END] = 0;
while (($this->parent->parent) && strtolower($this->parent->tag)!==$tag_lower)
$this->parent = $this->parent->parent;
}
else {
$node->nodetype = HDOM_TYPE_ENDTAG;
$node->info[HDOM_INFO_END] = $this->index-1;
$node->info[HDOM_INFO_TEXT] = '</' . $node->tag . '>';
$node->tag = $node->tag;
$this->parent->nodes[] = $node;
}
$this->parent->info[HDOM_INFO_END] = $this->index-1;
}
else {
$this->parent->info[HDOM_INFO_END] = $this->index-1;
$this->parent = $this->parent->parent;
}
$node->parent = $this->parent;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
return $node;
}
$node->tag = $this->copy_until($this->token_slash);
/* customized by UOT, ATRC, cindy Li */
// $this->debug(memory_get_usage());
$portion = substr($this->html, 0, $this->pos);
$node->linenumber = $this->count_line_number($portion);
$node->colnumber = $this->count_col_number($portion);
unset($portion);
/* end of customized by UOT, ATRC, cindy Li */
$node->parent = $this->parent;
// doctype, cdata & comments...
/* the next line was customized by UOT, ATRC, cindy Li, exclude '!doctype' so it will be returned as a normal node */
if (strtolower($node->tag) == '!doctype') $node->tag = "doctype";
if (isset($node->tag[0]) && $node->tag[0]=='!') {
$node->info[HDOM_INFO_TEXT] = '<' . $node->tag . $this->copy_until_char('>');
if (isset($node->tag[2]) && $node->tag[1]=='-' && $node->tag[2]=='-') {
$node->nodetype = HDOM_TYPE_COMMENT;
$node->tag = 'comment';
} else {
$node->nodetype = HDOM_TYPE_UNKNOWN;
$node->tag = 'unknown';
}
if ($this->char=='>') $node->info[HDOM_INFO_TEXT].='>';
$this->parent->nodes[] = $node;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
return $node;
}
// text
/* the next line was customized by UOT, ATRC, cindy Li, exclude 'doctype' so it will be returned as a normal node */
if (!preg_match("/^[A-Za-z0-9_\\-:]+$/", $node->tag) && strtolower($node->tag) <> 'doctype') {
$node->info[HDOM_INFO_TEXT] = '<' . $node->tag . $this->copy_until_char('>');
if ($this->char=='>') $node->info[HDOM_INFO_TEXT].='>';
$this->parent->nodes[] = $node;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
return $node;
}
// begin tag
$node->nodetype = HDOM_TYPE_ELEMENT;
$tag_lower = strtolower($node->tag);
if ($this->lowercase) $node->tag = $tag_lower;
// handle optional closing tags
if (isset($this->optional_closing_tags[$tag_lower]) ) {
while (isset($this->optional_closing_tags[$tag_lower][strtolower($this->parent->tag)])) {
$this->parent->info[HDOM_INFO_END] = 0;
$this->parent = $this->parent->parent;
}
$node->parent = $this->parent;
}
$this->parent->children[] = $node;
$this->parent->nodes[] = $node;
$guard = 0; // prevent infinity loop
$space = array($this->copy_skip($this->token_blank), '', '');
// handle attributes
do {
/* customized by UOT, ATRC, cindy Li */
if (strtolower($node->tag) == 'doctype')
{
$name = $this->copy_until($this->doctype_token_equal);
$this->parse_attr($node, $name, $space);
}
/* end of customized by UOT, ATRC, cindy Li */
if ($this->char!==null && $space[0]=='') break;
$name = $this->copy_until($this->token_equal);
if($guard==$this->pos) {
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
continue;
}
$guard = $this->pos;
// handle endless '<'
if($this->pos>=$this->size-1 && $this->char!='>') {
$node->nodetype = HDOM_TYPE_TEXT;
$node->info[HDOM_INFO_END] = 0;
$node->info[HDOM_INFO_TEXT] = '<'.$node->tag . $space[0] . $name;
$node->tag = 'text';
return $node;
}
if ($name!='/' && $name!='') {
$space[1] = $this->copy_skip($this->token_blank);
if ($this->lowercase) $name = strtolower($name);
if ($this->char=='=') {
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
$this->parse_attr($node, $name, $space);
}
else {
//no value attr: nowrap, checked selected...
$node->info[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
$node->attr[$name] = true;
if ($this->char!='>') $this->char = $this->html[--$this->pos]; // prev
}
$node->info[HDOM_INFO_SPACE][] = $space;
$space = array($this->copy_skip($this->token_blank), '', '');
}
else
break;
} while($this->char!='>' && $this->char!='/'); /* this line was customized by UOT, ATRC, cindy Li, exclude 'doctype' from parsing attributes */
$node->info[HDOM_INFO_ENDSPACE] = $space[0];
// check self closing
if ($this->copy_until_char_escape('>')=='/') {
$node->info[HDOM_INFO_ENDSPACE] .= '/';
$node->info[HDOM_INFO_END] = 0;
}
else {
// reset parent
if (!isset($this->self_closing_tags[strtolower($node->tag)])) $this->parent = $node;
}
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
return $node;
}
/* customized by UOT, ATRC, cindy Li */
// return the number of all new line characters in given $text
protected function count_line_number($text)
{
// $num_of_line_number = 0;
//
// foreach ($this->new_line_array as $new_line)
// {
// $text = preg_replace('/'.preg_quote($new_line).'/s', '', $text, -1, $count);
// $num_of_line_number += $count;
// }
//
// $num = $num_of_line_number + 1;
return substr_count($text, $this->new_line)+1;
}
// return the position of the last characters in its line
protected function count_col_number($text)
{
// $pattern = $this->generate_new_line_pattern();
//
// preg_match('/.*'.$pattern.'(.*)$/s', $text, $matches);
//
// return strrpos($matches[1], '<') + 1;
$last_new_line_pos = strrpos($text, $this->new_line);
if ($last_new_line_pos !== false)
$last_line = substr($text, $last_new_line_pos);
else
$last_line = $text;
$col_num = strrpos($last_line, '<');
if ($col_num == 0)
return 1;
else
return $col_num;
}
// protected function generate_new_line_pattern()
// {
// $pattern = "[";
//
// foreach ($this->new_line_array as $one_new_line)
// $pattern .= preg_quote($one_new_line)."|";
//
// $pattern .= "]";
//
// return $pattern;
// }
/* end of customized by UOT, ATRC, cindy Li */
// parse attributes
protected function parse_attr($node, $name, &$space) {
$space[2] = $this->copy_skip($this->token_blank);
switch($this->char) {
case '"':
$node->info[HDOM_INFO_QUOTE][] = HDOM_QUOTE_DOUBLE;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
$value = $this->copy_until_char_escape('"');
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
break;
case '\'':
$node->info[HDOM_INFO_QUOTE][] = HDOM_QUOTE_SINGLE;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
$value = $this->copy_until_char_escape('\'');
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
break;
default:
$node->info[HDOM_INFO_QUOTE][] = HDOM_QUOTE_NO;
$value = $this->copy_until($this->token_attr);
}
$node->attr[$name] = $this->restore_noise($value);
}
protected function skip($chars) {
while ($this->char!==null) {
if (!isset($chars[$this->char])) return;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
}
}
protected function copy_skip($chars) {
$ret = '';
while ($this->char!==null) {
if (!isset($chars[$this->char])) return $ret;
$ret .= $this->char;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
}
return $ret;
}
protected function copy_until($chars) {
$ret = '';
while ($this->char!==null) {
if (isset($chars[$this->char])) return $ret;
$ret .= $this->char;
$this->char = (++$this->pos<$this->size) ? $this->html[$this->pos] : null; // next
}
return $ret;
}
protected function copy_until_char($char) {
if ($this->char===null) return '';
if (($pos = strpos($this->html, $char, $this->pos))===false) {
$ret = substr($this->html, $this->pos, $this->size-$this->pos);
$this->char = null;
$this->pos = $this->size;
return $ret;
}
if ($pos==$this->pos) return '';
$ret = substr($this->html, $this->pos, $pos-$this->pos);
$this->char = $this->html[$pos];
$this->pos = $pos;
return $ret;
}
protected function copy_until_char_escape($char) {
if ($this->char===null) return '';
$start = $this->pos;
while(1) {
if (($pos = strpos($this->html, $char, $start))===false) {
$ret = substr($this->html, $this->pos, $this->size-$this->pos);
$this->char = null;
$this->pos = $this->size;
return $ret;
}
if ($pos==$this->pos) return '';
if ($this->html[$pos-1]==='\\') {
$start = $pos+1;
continue;
}
$ret = substr($this->html, $this->pos, $pos-$this->pos);
$this->char = $this->html[$pos];
$this->pos = $pos;
return $ret;
}
}
// remove noise from html content
function remove_noise($pattern, $remove_tag=true, $remove_contents=true) {
$count = preg_match_all($pattern, $this->html, $matches, PREG_SET_ORDER|PREG_OFFSET_CAPTURE);
for ($i=$count-1; $i>-1; --$i) {
$key = '___noise___'.sprintf('% 3d', count($this->noise));
$idx = ($remove_tag) ? 0 : 1;
$this->noise[$key] = ($remove_contents) ? '' : $matches[$i][$idx][0];
$new_lines = '';
for ($j = 0; $j < $this->count_line_number($matches[$i][$idx][0])-1; $j++)
$new_lines .= $this->new_line;
$this->html = substr_replace($this->html, $key.$new_lines, $matches[$i][$idx][1], strlen($matches[$i][$idx][0]));
}
// reset the length of content
$this->size = strlen($this->html);
if ($this->size>0)
$this->char = $this->html[0];
}
// restore noise to html content
function restore_noise($text) {
while(($pos=strpos($text, '___noise___'))!==false) {
$key = '___noise___'.$text[$pos+11].$text[$pos+12].$text[$pos+13];
if (isset($this->noise[$key]))
$text = substr($text, 0, $pos).$this->noise[$key].substr($text, $pos+14);
}
return $text;
}
function __toString() {
return $this->save();
}
function __get($name) {
switch($name) {
case 'outertext': return $this->save();
case 'innertext': return $this->root->innertext();
case 'plaintext': return $this->root->plaintext();
}
}
/* customized by UOT, ATRC, cindy Li */
// print debug information
protected function debug($var, $title='')
{
echo '<pre style="border: 1px black solid; padding: 0px; margin: 10px;" title="debugging box">';
if ($title) {
echo '<h4>'.$title.'</h4>';
}
ob_start();
print_r($var);
$str = ob_get_contents();
ob_end_clean();
$str = str_replace('<', '<', $str);
$str = str_replace('[', '<span style="color: red; font-weight: bold;">[', $str);
$str = str_replace(']', ']</span>', $str);
$str = str_replace('=>', '<span style="color: blue; font-weight: bold;">=></span>', $str);
$str = str_replace('Array', '<span style="color: purple; font-weight: bold;">Array</span>', $str);
echo $str;
echo '</pre>';
}
// camel naming conventions
function childNodes($idx=-1) {return $this->root->childNodes($idx);}
function firstChild() {return $this->root->first_child();}
function lastChild() {return $this->root->last_child();}
function getElementById($id) {return $this->find("#$id", 0);}
function getElementsById($id, $idx=-1) {return $this->find("#$id", $idx);}
function getElementByTagName($name) {return $this->find($name, 0);}
function getElementsByTagName($name, $idx=-1) {return $this->find($name, $idx);}
function loadFile() {$args = func_get_args();$this->load(call_user_func_array('file_get_contents', $args), true);}
}
?>