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<?php |
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/* Source: https://github.com/moodle/moodle/blob/MOODLE_310_STABLE/backup/cc/cc_lib/gral_lib/cssparser.php under GNU/GPL license */ |
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class CssParser |
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{ |
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private $css; |
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private $html; |
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public function __construct($html = true) |
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{ |
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$this->html = ($html != false); |
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$this->clear(); |
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} |
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public function clear() |
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{ |
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unset($this->css); |
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$this->css = []; |
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if ($this->html) { |
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$this->add("ADDRESS", ""); |
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$this->add("APPLET", ""); |
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$this->add("AREA", ""); |
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$this->add("A", "text-decoration : underline; color : Blue;"); |
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$this->add("A:visited", "color : Purple;"); |
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$this->add("BASE", ""); |
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$this->add("BASEFONT", ""); |
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$this->add("BIG", ""); |
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$this->add("BLOCKQUOTE", ""); |
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$this->add("BODY", ""); |
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$this->add("BR", ""); |
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$this->add("B", "font-weight: bold;"); |
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$this->add("CAPTION", ""); |
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$this->add("CENTER", ""); |
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$this->add("CITE", ""); |
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$this->add("CODE", ""); |
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$this->add("DD", ""); |
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$this->add("DFN", ""); |
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$this->add("DIR", ""); |
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$this->add("DIV", ""); |
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$this->add("DL", ""); |
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$this->add("DT", ""); |
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$this->add("EM", ""); |
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$this->add("FONT", ""); |
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$this->add("FORM", ""); |
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$this->add("H1", ""); |
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$this->add("H2", ""); |
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$this->add("H3", ""); |
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$this->add("H4", ""); |
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$this->add("H5", ""); |
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$this->add("H6", ""); |
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$this->add("HEAD", ""); |
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$this->add("HR", ""); |
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$this->add("HTML", ""); |
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$this->add("IMG", ""); |
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$this->add("INPUT", ""); |
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$this->add("ISINDEX", ""); |
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$this->add("I", "font-style: italic;"); |
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$this->add("KBD", ""); |
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$this->add("LINK", ""); |
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$this->add("LI", ""); |
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$this->add("MAP", ""); |
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$this->add("MENU", ""); |
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$this->add("META", ""); |
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$this->add("OL", ""); |
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$this->add("OPTION", ""); |
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$this->add("PARAM", ""); |
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$this->add("PRE", ""); |
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$this->add("P", ""); |
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$this->add("SAMP", ""); |
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$this->add("SCRIPT", ""); |
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$this->add("SELECT", ""); |
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$this->add("SMALL", ""); |
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$this->add("STRIKE", ""); |
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$this->add("STRONG", ""); |
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$this->add("STYLE", ""); |
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$this->add("SUB", ""); |
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$this->add("SUP", ""); |
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$this->add("TABLE", ""); |
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$this->add("TD", ""); |
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$this->add("TEXTAREA", ""); |
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$this->add("TH", ""); |
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$this->add("TITLE", ""); |
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$this->add("TR", ""); |
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$this->add("TT", ""); |
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$this->add("UL", ""); |
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$this->add("U", "text-decoration : underline;"); |
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$this->add("VAR", ""); |
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} |
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} |
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public function setHTML($html) |
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{ |
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$this->html = ($html != false); |
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} |
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public function add($key, $codestr) |
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{ |
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$key = strtolower($key); |
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$codestr = strtolower($codestr); |
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if (!isset($this->css[$key])) { |
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$this->css[$key] = []; |
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} |
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$codes = explode(";", $codestr); |
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if (count($codes) > 0) { |
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$codekey = ''; |
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$codevalue = ''; |
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foreach ($codes as $code) { |
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$code = trim($code); |
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$this->assignValues(explode(":", $code), $codekey, $codevalue); |
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if (strlen($codekey) > 0) { |
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$this->css[$key][trim($codekey)] = trim($codevalue); |
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} |
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} |
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} |
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} |
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public function get($key, $property) |
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{ |
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$key = strtolower($key); |
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$property = strtolower($property); |
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$tag = ''; |
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$subtag = ''; |
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$class = ''; |
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$id = ''; |
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$this->assignValues(explode(":", $key), $tag, $subtag); |
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$this->assignValues(explode(".", $tag), $tag, $class); |
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$this->assignValues(explode("#", $tag), $tag, $id); |
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$result = ""; |
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$_subtag = ''; |
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$_class = ''; |
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$_id = ''; |
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foreach ($this->css as $_tag => $value) { |
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$this->assignValues(explode(":", $_tag), $_tag, $_subtag); |
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$this->assignValues(explode(".", $_tag), $_tag, $_class); |
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$this->assignValues(explode("#", $_tag), $_tag, $_id); |
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$tagmatch = (strcmp($tag, $_tag) == 0) | (strlen($_tag) == 0); |
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$subtagmatch = (strcmp($subtag, $_subtag) == 0) | (strlen($_subtag) == 0); |
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$classmatch = (strcmp($class, $_class) == 0) | (strlen($_class) == 0); |
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$idmatch = (strcmp($id, $_id) == 0); |
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if ($tagmatch & $subtagmatch & $classmatch & $idmatch) { |
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$temp = $_tag; |
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if ((strlen($temp) > 0) & (strlen($_class) > 0)) { |
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$temp .= ".".$_class; |
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} elseif (strlen($temp) == 0) { |
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$temp = ".".$_class; |
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} |
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if ((strlen($temp) > 0) & (strlen($_subtag) > 0)) { |
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$temp .= ":".$_subtag; |
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} elseif (strlen($temp) == 0) { |
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$temp = ":".$_subtag; |
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} |
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if (isset($this->css[$temp][$property])) { |
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$result = $this->css[$temp][$property]; |
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} |
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} |
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} |
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return $result; |
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} |
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public function getSection($key) |
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{ |
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$key = strtolower($key); |
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$tag = ''; |
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$subtag = ''; |
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$class = ''; |
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$id = ''; |
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$_subtag = ''; |
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$_class = ''; |
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$_id = ''; |
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$this->assignValues(explode(":", $key), $tag, $subtag); |
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$this->assignValues(explode(".", $tag), $tag, $class); |
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$this->assignValues(explode("#", $tag), $tag, $id); |
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$result = []; |
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foreach ($this->css as $_tag => $value) { |
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$this->assignValues(explode(":", $_tag), $_tag, $_subtag); |
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$this->assignValues(explode(".", $_tag), $_tag, $_class); |
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$this->assignValues(explode("#", $_tag), $_tag, $_id); |
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$tagmatch = (strcmp($tag, $_tag) == 0) | (strlen($_tag) == 0); |
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$subtagmatch = (strcmp($subtag, $_subtag) == 0) | (strlen($_subtag) == 0); |
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$classmatch = (strcmp($class, $_class) == 0) | (strlen($_class) == 0); |
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$idmatch = (strcmp($id, $_id) == 0); |
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if ($tagmatch & $subtagmatch & $classmatch & $idmatch) { |
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$temp = $_tag; |
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if ((strlen($temp) > 0) & (strlen($_class) > 0)) { |
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$temp .= ".".$_class; |
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} elseif (strlen($temp) == 0) { |
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$temp = ".".$_class; |
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} |
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if ((strlen($temp) > 0) & (strlen($_subtag) > 0)) { |
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$temp .= ":".$_subtag; |
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} elseif (strlen($temp) == 0) { |
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$temp = ":".$_subtag; |
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} |
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foreach ($this->css[$temp] as $property => $value) { |
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$result[$property] = $value; |
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} |
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} |
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} |
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return $result; |
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} |
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public function parseStr($str) |
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{ |
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$this->clear(); |
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// Remove comments |
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$str = preg_replace("/\/\*(.*)?\*\//Usi", "", $str); |
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// Parse this damn csscode |
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$parts = explode("}", $str); |
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if (count($parts) > 0) { |
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foreach ($parts as $part) { |
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$keystr = ''; |
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$codestr = ''; |
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$this->assignValues(explode("{", $part), $keystr, $codestr); |
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$keys = explode(",", trim($keystr)); |
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if (count($keys) > 0) { |
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foreach ($keys as $key) { |
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if (strlen($key) > 0) { |
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$key = str_replace("\n", "", $key); |
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$key = str_replace("\\", "", $key); |
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$this->Add($key, trim($codestr)); |
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} |
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} |
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} |
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} |
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} |
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return count($this->css) > 0; |
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} |
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public function parse($filename) |
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{ |
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$this->clear(); |
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if (file_exists($filename)) { |
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return $this->parseStr(file_get_contents($filename)); |
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} else { |
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return false; |
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} |
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} |
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public function getCSS() |
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{ |
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$result = ""; |
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foreach ($this->css as $key => $values) { |
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$result .= $key." {\n"; |
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foreach ($values as $key => $value) { |
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$result .= " $key: $value;\n"; |
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} |
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$result .= "}\n\n"; |
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} |
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return $result; |
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} |
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private function assignValues($arr, &$val1, &$val2) |
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{ |
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$n = count($arr); |
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if ($n > 0) { |
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$val1 = $arr[0]; |
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$val2 = ($n > 1) ? $arr[1] : ''; |
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} |
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} |
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} |
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