private function parseRule()
{
$oRule = new CSSRule($this->parseIdentifier());
$this->consumeWhiteSpace();
$this->consume(':');
$this->consumeWhiteSpace();
while (!($this->comes('}') || $this->comes(';') || $this->comes('!'))) {
$oRule->addValue($this->parseValue());
$this->consumeWhiteSpace();
}
if ($this->comes('!')) {
$this->consume('!');
$this->consumeWhiteSpace();
$sImportantMarker = $this->consume(strlen('important'));
if (mb_convert_case($sImportantMarker, MB_CASE_LOWER) !== 'important') {
throw new Exception("! was followed by “" . $sImportantMarker . "”. Expected “important”");
}
$oRule->setIsImportant(true);
}
if ($this->comes(';')) {
$this->consume(';');
}
return $oRule;
}
/**
* Looks for long format CSS font properties (e.g. <tt>font-weight</tt>) and
* tries to convert them into a shorthand CSS <tt>font</tt> property.
* At least font-size AND font-family must be present in order to create a shorthand declaration.
**/
public function createFontShorthand()
{
$aFontProperties = array('font-style', 'font-variant', 'font-weight', 'font-size', 'line-height', 'font-family');
$aRules = $this->getRules();
if (!isset($aRules['font-size']) || !isset($aRules['font-family'])) {
return;
}
$oNewRule = new CSSRule('font');
foreach (array('font-style', 'font-variant', 'font-weight') as $sProperty) {
if (isset($aRules[$sProperty])) {
$oRule = $aRules[$sProperty];
$mRuleValue = $oRule->getValue();
$aValues = array();
if (!$mRuleValue instanceof CSSRuleValueList) {
$aValues[] = $mRuleValue;
} else {
$aValues = $mRuleValue->getListComponents();
}
if ($aValues[0] !== 'normal') {
$oNewRule->addValue($aValues[0]);
}
}
}
// Get the font-size value
$oRule = $aRules['font-size'];
$mRuleValue = $oRule->getValue();
$aFSValues = array();
if (!$mRuleValue instanceof CSSRuleValueList) {
$aFSValues[] = $mRuleValue;
} else {
$aFSValues = $mRuleValue->getListComponents();
}
// But wait to know if we have line-height to add it
if (isset($aRules['line-height'])) {
$oRule = $aRules['line-height'];
$mRuleValue = $oRule->getValue();
$aLHValues = array();
if (!$mRuleValue instanceof CSSRuleValueList) {
$aLHValues[] = $mRuleValue;
} else {
$aLHValues = $mRuleValue->getListComponents();
}
if ($aLHValues[0] !== 'normal') {
$val = new CSSRuleValueList('/');
$val->addListComponent($aFSValues[0]);
$val->addListComponent($aLHValues[0]);
$oNewRule->addValue($val);
}
} else {
$oNewRule->addValue($aFSValues[0]);
}
$oRule = $aRules['font-family'];
$mRuleValue = $oRule->getValue();
$aFFValues = array();
if (!$mRuleValue instanceof CSSRuleValueList) {
$aFFValues[] = $mRuleValue;
} else {
$aFFValues = $mRuleValue->getListComponents();
}
$oFFValue = new CSSRuleValueList(',');
$oFFValue->setListComponents($aFFValues);
$oNewRule->addValue($oFFValue);
$this->addRule($oNewRule);
foreach ($aFontProperties as $sProperty) {
$this->removeRule($sProperty);
}
}
