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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
class cssparser {
private $css;
private $html;
public function __construct($html = true) {
// Register "destructor"
core_shutdown_manager::register_function(array(&$this, "finalize"));
$this->html = ($html != false);
$this->Clear();
}
/**
* Old syntax of class constructor. Deprecated in PHP7.
*
* @deprecated since Moodle 3.1
*/
public function cssparser($html = true) {
debugging('Use of class name as constructor is deprecated', DEBUG_DEVELOPER);
self::__construct($html);
}
function finalize() {
unset($this->css);
}
function Clear() {
unset($this->css);
$this->css = array();
if($this->html) {
$this->Add("ADDRESS", "");
$this->Add("APPLET", "");
$this->Add("AREA", "");
$this->Add("A", "text-decoration : underline; color : Blue;");
$this->Add("A:visited", "color : Purple;");
$this->Add("BASE", "");
$this->Add("BASEFONT", "");
$this->Add("BIG", "");
$this->Add("BLOCKQUOTE", "");
$this->Add("BODY", "");
$this->Add("BR", "");
$this->Add("B", "font-weight: bold;");
$this->Add("CAPTION", "");
$this->Add("CENTER", "");
$this->Add("CITE", "");
$this->Add("CODE", "");
$this->Add("DD", "");
$this->Add("DFN", "");
$this->Add("DIR", "");
$this->Add("DIV", "");
$this->Add("DL", "");
$this->Add("DT", "");
$this->Add("EM", "");
$this->Add("FONT", "");
$this->Add("FORM", "");
$this->Add("H1", "");
$this->Add("H2", "");
$this->Add("H3", "");
$this->Add("H4", "");
$this->Add("H5", "");
$this->Add("H6", "");
$this->Add("HEAD", "");
$this->Add("HR", "");
$this->Add("HTML", "");
$this->Add("IMG", "");
$this->Add("INPUT", "");
$this->Add("ISINDEX", "");
$this->Add("I", "font-style: italic;");
$this->Add("KBD", "");
$this->Add("LINK", "");
$this->Add("LI", "");
$this->Add("MAP", "");
$this->Add("MENU", "");
$this->Add("META", "");
$this->Add("OL", "");
$this->Add("OPTION", "");
$this->Add("PARAM", "");
$this->Add("PRE", "");
$this->Add("P", "");
$this->Add("SAMP", "");
$this->Add("SCRIPT", "");
$this->Add("SELECT", "");
$this->Add("SMALL", "");
$this->Add("STRIKE", "");
$this->Add("STRONG", "");
$this->Add("STYLE", "");
$this->Add("SUB", "");
$this->Add("SUP", "");
$this->Add("TABLE", "");
$this->Add("TD", "");
$this->Add("TEXTAREA", "");
$this->Add("TH", "");
$this->Add("TITLE", "");
$this->Add("TR", "");
$this->Add("TT", "");
$this->Add("UL", "");
$this->Add("U", "text-decoration : underline;");
$this->Add("VAR", "");
}
}
function SetHTML($html) {
$this->html = ($html != false);
}
function Add($key, $codestr) {
$key = strtolower($key);
$codestr = strtolower($codestr);
if(!isset($this->css[$key])) {
$this->css[$key] = array();
}
$codes = explode(";",$codestr);
if(count($codes) > 0) {
$codekey=''; $codevalue='';
foreach($codes as $code) {
$code = trim($code);
$this->assignValues(explode(":",$code),$codekey,$codevalue);
if(strlen($codekey) > 0) {
$this->css[$key][trim($codekey)] = trim($codevalue);
}
}
}
}
private function assignValues($arr,&$val1,&$val2) {
$n = count($arr);
if ($n > 0) {
$val1=$arr[0];
$val2=($n > 1) ? $arr[1] : '';
}
}
function Get($key, $property) {
$key = strtolower($key);
$property = strtolower($property);
$tag='';$subtag='';$class='';$id='';
$this->assignValues(explode(":",$key),$tag,$subtag);
$this->assignValues(explode(".",$tag),$tag,$class);
$this->assignValues(explode("#",$tag),$tag,$id);
$result = "";
$_subtag=''; $_class=''; $_id='';
foreach($this->css as $_tag => $value) {
$this->assignValues(explode(":",$_tag),$_tag,$_subtag);
$this->assignValues(explode(".",$_tag),$_tag,$_class);
$this->assignValues(explode("#",$_tag),$_tag,$_id);
$tagmatch = (strcmp($tag, $_tag) == 0) | (strlen($_tag) == 0);
$subtagmatch = (strcmp($subtag, $_subtag) == 0) | (strlen($_subtag) == 0);
$classmatch = (strcmp($class, $_class) == 0) | (strlen($_class) == 0);
$idmatch = (strcmp($id, $_id) == 0);
if($tagmatch & $subtagmatch & $classmatch & $idmatch) {
$temp = $_tag;
if((strlen($temp) > 0) & (strlen($_class) > 0)) {
$temp .= ".".$_class;
} elseif(strlen($temp) == 0) {
$temp = ".".$_class;
}
if((strlen($temp) > 0) & (strlen($_subtag) > 0)) {
$temp .= ":".$_subtag;
} elseif(strlen($temp) == 0) {
$temp = ":".$_subtag;
}
if(isset($this->css[$temp][$property])) {
$result = $this->css[$temp][$property];
}
}
}
return $result;
}
function GetSection($key) {
$key = strtolower($key);
$tag='';$subtag='';$class='';$id='';
$_subtag=''; $_class=''; $_id='';
$this->assignValues(explode(":",$key),$tag,$subtag);
$this->assignValues(explode(".",$tag),$tag,$class);
$this->assignValues(explode("#",$tag),$tag,$id);
$result = array();
foreach($this->css as $_tag => $value) {
$this->assignValues(explode(":",$_tag),$_tag,$_subtag);
$this->assignValues(explode(".",$_tag),$_tag,$_class);
$this->assignValues(explode("#",$_tag),$_tag,$_id);
$tagmatch = (strcmp($tag, $_tag) == 0) | (strlen($_tag) == 0);
$subtagmatch = (strcmp($subtag, $_subtag) == 0) | (strlen($_subtag) == 0);
$classmatch = (strcmp($class, $_class) == 0) | (strlen($_class) == 0);
$idmatch = (strcmp($id, $_id) == 0);
if($tagmatch & $subtagmatch & $classmatch & $idmatch) {
$temp = $_tag;
if((strlen($temp) > 0) & (strlen($_class) > 0)) {
$temp .= ".".$_class;
} elseif(strlen($temp) == 0) {
$temp = ".".$_class;
}
if((strlen($temp) > 0) & (strlen($_subtag) > 0)) {
$temp .= ":".$_subtag;
} elseif(strlen($temp) == 0) {
$temp = ":".$_subtag;
}
foreach($this->css[$temp] as $property => $value) {
$result[$property] = $value;
}
}
}
return $result;
}
function ParseStr($str) {
$this->Clear();
// Remove comments
$str = preg_replace("/\/\*(.*)?\*\//Usi", "", $str);
// Parse this damn csscode
$parts = explode("}",$str);
if(count($parts) > 0) {
foreach($parts as $part) {
$keystr='';$codestr='';
$this->assignValues(explode("{",$part),$keystr,$codestr);
$keys = explode(",",trim($keystr));
if(count($keys) > 0) {
foreach($keys as $key) {
if(strlen($key) > 0) {
$key = str_replace("\n", "", $key);
$key = str_replace("\\", "", $key);
$this->Add($key, trim($codestr));
}
}
}
}
}
//
return (count($this->css) > 0);
}
function Parse($filename) {
$this->Clear();
if(file_exists($filename)) {
return $this->ParseStr(file_get_contents($filename));
} else {
return false;
}
}
function GetCSS() {
$result = "";
foreach($this->css as $key => $values) {
$result .= $key." {\n";
foreach($values as $key => $value) {
$result .= " $key: $value;\n";
}
$result .= "}\n\n";
}
return $result;
}
}