public function apply(array &$tokens)
{
if (!isset($this->configuration["BasePath"]) || !is_dir($this->configuration["BasePath"])) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Base path <code>" . ($this->configuration["BasePath"] ? $this->configuration["BasePath"] : "null") . "</code> is not a directory"));
return 0;
}
for ($i = 0, $l = count($tokens); $i < $l; $i++) {
if (get_class($tokens[$i]) === "CssAtImportToken") {
$import = $this->configuration["BasePath"] . "/" . $tokens[$i]->Import;
if (!is_file($import)) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import . "</code> was not found.", (string) $tokens[$i]));
} elseif (in_array($import, $this->imported)) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import . "</code> was already imported.", (string) $tokens[$i]));
$tokens[$i] = null;
} else {
$this->imported[] = $import;
$parser = new CssParser(file_get_contents($import));
$import = $parser->getTokens();
if (count($tokens[$i]->MediaTypes) > 0 && !(count($tokens[$i]->MediaTypes) == 1 && $tokens[$i]->MediaTypes[0] == "all")) {
$blocks = array();
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtImportToken") {
if (count($import[$ii]->MediaTypes) == 0 || count($import[$ii]->MediaTypes) == 1 && $import[$ii]->MediaTypes[0] == "all") {
$import[$ii]->MediaTypes = $tokens[$i]->MediaTypes;
} elseif (count($import[$ii]->MediaTypes > 0)) {
foreach ($import[$ii]->MediaTypes as $index => $mediaType) {
if (!in_array($mediaType, $tokens[$i]->MediaTypes)) {
unset($import[$ii]->MediaTypes[$index]);
}
}
$import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes);
if (count($import[$ii]->MediaTypes) == 0) {
$import[$ii] = null;
}
}
}
}
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken") {
foreach ($import[$ii]->MediaTypes as $index => $mediaType) {
if (!in_array($mediaType, $tokens[$i]->MediaTypes)) {
unset($import[$ii]->MediaTypes[$index]);
}
$import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes);
}
}
}
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken") {
if (count($import[$ii]->MediaTypes) === 0) {
for ($iii = $ii; $iii < $ll; $iii++) {
if (get_class($import[$iii]) === "CssAtMediaEndToken") {
break;
}
}
if (get_class($import[$iii]) === "CssAtMediaEndToken") {
array_splice($import, $ii, $iii - $ii + 1, array());
$ll = count($import);
}
}
}
}
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken" && count(array_diff($tokens[$i]->MediaTypes, $import[$ii]->MediaTypes)) === 0) {
for ($iii = $ii; $iii < $ll; $iii++) {
if (get_class($import[$iii]) == "CssAtMediaEndToken") {
break;
}
}
if (get_class($import[$iii]) == "CssAtMediaEndToken") {
unset($import[$ii]);
unset($import[$iii]);
$import = array_values($import);
$ll = count($import);
}
}
}
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
$class = get_class($import[$ii]);
if ($class === "CssAtImportToken" || $class === "CssAtCharsetToken") {
$blocks = array_merge($blocks, array_splice($import, $ii, 1, array()));
$ll = count($import);
}
}
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
$class = get_class($import[$ii]);
if ($class === "CssAtFontFaceStartToken" || $class === "CssAtMediaStartToken" || $class === "CssAtPageStartToken" || $class === "CssAtVariablesStartToken") {
for ($iii = $ii; $iii < $ll; $iii++) {
$class = get_class($import[$iii]);
if ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken") {
break;
}
}
$class = get_class($import[$iii]);
if (isset($import[$iii]) && ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken")) {
$blocks = array_merge($blocks, array_splice($import, $ii, $iii - $ii + 1, array()));
$ll = count($import);
}
}
}
$import = array_merge($blocks, array(new CssAtMediaStartToken($tokens[$i]->MediaTypes)), $import, array(new CssAtMediaEndToken()));
}
array_splice($tokens, $i, 1, $import);
$i--;
$l = count($tokens);
}
}
}
}
/**
* Implements {@link aCssMinifierFilter::filter()}.
*
* @param array $tokens Array of objects of type aCssToken
* @return integer Count of added, changed or removed tokens; a return value large than 0 will rebuild the array
*/
public function apply(array &$tokens)
{
if (!isset($this->configuration["BasePath"]) || !is_dir($this->configuration["BasePath"])) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Base path <code>" . ($this->configuration["BasePath"] ? $this->configuration["BasePath"] : "null") . "</code> is not a directory"));
return 0;
}
for ($i = 0, $l = count($tokens); $i < $l; $i++) {
if (get_class($tokens[$i]) === "CssAtImportToken") {
$import = $this->configuration["BasePath"] . "/" . $tokens[$i]->Import;
// Import file was not found/is not a file
if (!is_file($import)) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import . "</code> was not found.", (string) $tokens[$i]));
} elseif (in_array($import, $this->imported)) {
CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import . "</code> was already imported.", (string) $tokens[$i]));
$tokens[$i] = null;
} else {
$this->imported[] = $import;
$parser = new CssParser(file_get_contents($import));
$import = $parser->getTokens();
// The @import at-rule has media types defined requiring special handling
if (count($tokens[$i]->MediaTypes) > 0 && !(count($tokens[$i]->MediaTypes) == 1 && $tokens[$i]->MediaTypes[0] == "all")) {
$blocks = array();
/*
* Filter or set media types of @import at-rule or remove the @import at-rule if no media type is matching the parent @import at-rule
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtImportToken") {
// @import at-rule defines no media type or only the "all" media type; set the media types to the one defined in the parent @import at-rule
if (count($import[$ii]->MediaTypes) == 0 || count($import[$ii]->MediaTypes) == 1 && $import[$ii]->MediaTypes[0] == "all") {
$import[$ii]->MediaTypes = $tokens[$i]->MediaTypes;
} elseif (count($import[$ii]->MediaTypes > 0)) {
foreach ($import[$ii]->MediaTypes as $index => $mediaType) {
if (!in_array($mediaType, $tokens[$i]->MediaTypes)) {
unset($import[$ii]->MediaTypes[$index]);
}
}
$import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes);
// If there are no media types left in the @import at-rule remove the @import at-rule
if (count($import[$ii]->MediaTypes) == 0) {
$import[$ii] = null;
}
}
}
}
/*
* Remove media types of @media at-rule block not defined in the @import at-rule
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken") {
foreach ($import[$ii]->MediaTypes as $index => $mediaType) {
if (!in_array($mediaType, $tokens[$i]->MediaTypes)) {
unset($import[$ii]->MediaTypes[$index]);
}
$import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes);
}
}
}
/*
* If no media types left of the @media at-rule block remove the complete block
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken") {
if (count($import[$ii]->MediaTypes) === 0) {
for ($iii = $ii; $iii < $ll; $iii++) {
if (get_class($import[$iii]) === "CssAtMediaEndToken") {
break;
}
}
if (get_class($import[$iii]) === "CssAtMediaEndToken") {
array_splice($import, $ii, $iii - $ii + 1, array());
$ll = count($import);
}
}
}
}
/*
* If the media types of the @media at-rule equals the media types defined in the @import
* at-rule remove the CssAtMediaStartToken and CssAtMediaEndToken token
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
if (get_class($import[$ii]) === "CssAtMediaStartToken" && count(array_diff($tokens[$i]->MediaTypes, $import[$ii]->MediaTypes)) === 0) {
for ($iii = $ii; $iii < $ll; $iii++) {
if (get_class($import[$iii]) == "CssAtMediaEndToken") {
break;
}
}
if (get_class($import[$iii]) == "CssAtMediaEndToken") {
unset($import[$ii]);
unset($import[$iii]);
$import = array_values($import);
$ll = count($import);
}
}
}
/**
* Extract CssAtImportToken and CssAtCharsetToken tokens
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
$class = get_class($import[$ii]);
if ($class === "CssAtImportToken" || $class === "CssAtCharsetToken") {
$blocks = array_merge($blocks, array_splice($import, $ii, 1, array()));
$ll = count($import);
}
}
/*
* Extract the @font-face, @media and @page at-rule block
*/
for ($ii = 0, $ll = count($import); $ii < $ll; $ii++) {
$class = get_class($import[$ii]);
if ($class === "CssAtFontFaceStartToken" || $class === "CssAtMediaStartToken" || $class === "CssAtPageStartToken" || $class === "CssAtVariablesStartToken") {
for ($iii = $ii; $iii < $ll; $iii++) {
$class = get_class($import[$iii]);
if ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken") {
break;
}
}
$class = get_class($import[$iii]);
if (isset($import[$iii]) && ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken")) {
$blocks = array_merge($blocks, array_splice($import, $ii, $iii - $ii + 1, array()));
$ll = count($import);
}
}
}
// Create the import array with extracted tokens and the rulesets wrapped into a @media at-rule block
$import = array_merge($blocks, array(new CssAtMediaStartToken($tokens[$i]->MediaTypes)), $import, array(new CssAtMediaEndToken()));
}
// Insert the imported tokens
array_splice($tokens, $i, 1, $import);
// Modify parameters of the for-loop
$i--;
$l = count($tokens);
}
}
}
}
/**
* Minifies the CSS source.
*
* @param string $source CSS source
* @return string
*/
public function minify($source)
{
// Variables
$r = "";
$parser = new CssParser($source);
$tokens = $parser->getTokens();
$filters = $this->filters;
$filterCount = count($this->filters);
$plugins = $this->plugins;
$pluginCount = count($plugins);
$pluginIndex = array();
$pluginTriggerTokens = array();
$globalTriggerTokens = array();
for ($i = 0, $l = count($plugins); $i < $l; $i++) {
$tPluginClassName = get_class($plugins[$i]);
$pluginTriggerTokens[$i] = $plugins[$i]->getTriggerTokens();
foreach ($pluginTriggerTokens[$i] as $v) {
if (!in_array($v, $globalTriggerTokens)) {
$globalTriggerTokens[] = $v;
}
}
$pluginTriggerTokens[$i] = "|" . implode("|", $pluginTriggerTokens[$i]) . "|";
$pluginIndex[$tPluginClassName] = $i;
}
$globalTriggerTokens = "|" . implode("|", $globalTriggerTokens) . "|";
/*
* Apply filters
*/
for ($i = 0; $i < $filterCount; $i++) {
// Apply the filter; if the return value is larger than 0...
if ($filters[$i]->apply($tokens) > 0) {
// ...then filter null values and rebuild the token array
$tokens = array_values(array_filter($tokens));
}
}
$tokenCount = count($tokens);
/*
* Apply plugins
*/
for ($i = 0; $i < $tokenCount; $i++) {
$triggerToken = "|" . get_class($tokens[$i]) . "|";
if (strpos($globalTriggerTokens, $triggerToken) !== false) {
for ($ii = 0; $ii < $pluginCount; $ii++) {
if (strpos($pluginTriggerTokens[$ii], $triggerToken) !== false || $pluginTriggerTokens[$ii] === false) {
// Apply the plugin; if the return value is TRUE continue to the next token
if ($plugins[$ii]->apply($tokens[$i]) === true) {
continue 2;
}
}
}
}
}
// Stringify the tokens
for ($i = 0; $i < $tokenCount; $i++) {
$r .= (string) $tokens[$i];
}
$this->minified = $r;
return $r;
}
/**
* Parse the CSS source.
*
* @param string $source CSS source
* @param array $plugins Plugin configuration [optional]
* @return array Array of aCssToken
*/
public static function parse($source, array $plugins = null)
{
self::$errors = array();
$parser = new CssParser($source, $plugins);
return $parser->getTokens();
}
public function minify($source)
{
$r = "";
$parser = new CssParser($source);
$tokens = $parser->getTokens();
$filters = $this->filters;
$filterCount = count($this->filters);
$plugins = $this->plugins;
$pluginCount = count($plugins);
$pluginIndex = array();
$pluginTriggerTokens = array();
$globalTriggerTokens = array();
for ($i = 0, $l = count($plugins); $i < $l; $i++) {
$tPluginClassName = get_class($plugins[$i]);
$pluginTriggerTokens[$i] = $plugins[$i]->getTriggerTokens();
foreach ($pluginTriggerTokens[$i] as $v) {
if (!in_array($v, $globalTriggerTokens)) {
$globalTriggerTokens[] = $v;
}
}
$pluginTriggerTokens[$i] = "|" . implode("|", $pluginTriggerTokens[$i]) . "|";
$pluginIndex[$tPluginClassName] = $i;
}
$globalTriggerTokens = "|" . implode("|", $globalTriggerTokens) . "|";
for ($i = 0; $i < $filterCount; $i++) {
if ($filters[$i]->apply($tokens) > 0) {
$tokens = array_values(array_filter($tokens));
}
}
$tokenCount = count($tokens);
for ($i = 0; $i < $tokenCount; $i++) {
$triggerToken = "|" . get_class($tokens[$i]) . "|";
if (strpos($globalTriggerTokens, $triggerToken) !== false) {
for ($ii = 0; $ii < $pluginCount; $ii++) {
if (strpos($pluginTriggerTokens[$ii], $triggerToken) !== false || $pluginTriggerTokens[$ii] === false) {
if ($plugins[$ii]->apply($tokens[$i]) === true) {
continue 2;
}
}
}
}
}
for ($i = 0; $i < $tokenCount; $i++) {
$r .= (string) $tokens[$i];
}
$this->minified = $r;
return $r;
}
