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PKQ��[P�)!!AbstractAsset.phpnu�[���<?php
namespace Nextend\Framework\Asset;
use Nextend\Framework\Misc\Base64;
class AbstractAsset {
/**
* @var AbstractCache
*/
protected $cache;
protected $files = array();
protected $urls = array();
protected $codes = array();
protected $globalInline = array();
protected $firstCodes = array();
protected $inline = array();
protected $staticGroupPreload = array();
protected $staticGroup = array();
protected $groups = array();
public function addFile($pathToFile, $group) {
$this->addGroup($group);
$this->files[$group][] = $pathToFile;
}
public function addFiles($path, $files, $group) {
$this->addGroup($group);
foreach ($files as $file) {
$this->files[$group][] = $path . DIRECTORY_SEPARATOR .
$file;
}
}
public function addStaticGroupPreload($file, $group) {
$this->staticGroupPreload[$group] = $file;
}
public function addStaticGroup($file, $group) {
$this->staticGroup[$group] = $file;
}
private function addGroup($group) {
if (!isset($this->files[$group])) {
$this->files[$group] = array();
}
}
public function addCode($code, $group, $unshift = false) {
if (!isset($this->codes[$group])) {
$this->codes[$group] = array();
}
if (!$unshift) {
$this->codes[$group][] = $code;
} else {
array_unshift($this->codes[$group], $code);
}
}
public function addUrl($url) {
$this->urls[] = $url;
}
public function addFirstCode($code, $unshift = false) {
if ($unshift) {
array_unshift($this->firstCodes, $code);
} else {
$this->firstCodes[] = $code;
}
}
public function addInline($code, $name = null, $unshift = false) {
if ($unshift) {
array_unshift($this->inline, $code);
} else {
if ($name) {
$this->inline[$name] = $code;
} else {
$this->inline[] = $code;
}
}
}
public function addGlobalInline($code, $unshift = false) {
if ($unshift) {
array_unshift($this->globalInline, $code);
} else {
$this->globalInline[] = $code;
}
}
public function loadedFilesEncoded() {
return
Base64::encode(json_encode(call_user_func_array('array_merge',
$this->files) + $this->urls));
}
protected function uniqueFiles() {
foreach ($this->files as $group => &$files) {
$this->files[$group] = array_values(array_unique($files));
}
$this->initGroups();
}
public function removeFiles($notNeededFiles) {
foreach ($this->files as $group => &$files) {
$this->files[$group] = array_diff($files, $notNeededFiles);
}
}
public function initGroups() {
$this->groups =
array_unique(array_merge(array_keys($this->files),
array_keys($this->codes)));
$skeleton = array_map(array(
AbstractAsset::class,
'emptyArray'
), array_flip($this->groups));
$this->files += $skeleton;
$this->codes += $skeleton;
}
private static function emptyArray() {
return array();
}
public function getFiles() {
$this->uniqueFiles();
$files = array();
if (AssetManager::$cacheAll) {
foreach ($this->groups as $group) {
if (isset($this->staticGroup[$group])) continue;
$files[$group] = $this->cache->getAssetFile($group,
$this->files[$group], $this->codes[$group]);
}
} else {
foreach ($this->groups as $group) {
if (isset($this->staticGroup[$group])) continue;
if (in_array($group, AssetManager::$cachedGroups)) {
$files[$group] =
$this->cache->getAssetFile($group, $this->files[$group],
$this->codes[$group]);
} else {
foreach ($this->files[$group] as $file) {
$files[] = $file;
}
foreach ($this->codes[$group] as $code) {
array_unshift($this->inline, $code);
}
}
}
}
if (isset($files['n2'])) {
return array('n2' => $files['n2']) +
$this->staticGroup + $files;
}
return array_merge($files, $this->staticGroup);
}
public function serialize() {
return array(
'staticGroupPreload' =>
$this->staticGroupPreload,
'staticGroup' => $this->staticGroup,
'files' => $this->files,
'urls' => $this->urls,
'codes' => $this->codes,
'firstCodes' => $this->firstCodes,
'inline' => $this->inline,
'globalInline' => $this->globalInline
);
}
public function unSerialize($array) {
$this->staticGroupPreload =
array_merge($this->staticGroupPreload,
$array['staticGroupPreload']);
$this->staticGroup = array_merge($this->staticGroup,
$array['staticGroup']);
foreach ($array['files'] as $group => $files) {
if (!isset($this->files[$group])) {
$this->files[$group] = $files;
} else {
$this->files[$group] =
array_merge($this->files[$group], $files);
}
}
$this->urls = array_merge($this->urls,
$array['urls']);
foreach ($array['codes'] as $group => $codes) {
if (!isset($this->codes[$group])) {
$this->codes[$group] = $codes;
} else {
$this->codes[$group] =
array_merge($this->codes[$group], $codes);
}
}
$this->firstCodes = array_merge($this->firstCodes,
$array['firstCodes']);
$this->inline = array_merge($this->inline,
$array['inline']);
$this->globalInline = array_merge($this->globalInline,
$array['globalInline']);
}
}PKQ��[���3��AbstractCache.phpnu�[���<?php
namespace Nextend\Framework\Asset;
use Nextend\Framework\Cache\Manifest;
use Nextend\Framework\Filesystem\Filesystem;
abstract class AbstractCache {
public $outputFileType;
protected $group, $files, $codes;
public function getAssetFile($group, &$files = array(), &$codes
= array()) {
$this->group = $group;
$this->files = $files;
$this->codes = $codes;
$cache = new Manifest($group, true, true);
$hash = $this->getHash();
return $cache->makeCache($group . "." .
$this->outputFileType, $hash, array(
$this,
'getCachedContent'
));
}
protected function getHash() {
$hash = '';
foreach ($this->files AS $file) {
$hash .= $this->makeFileHash($file);
}
foreach ($this->codes AS $code) {
$hash .= $code;
}
return md5($hash);
}
protected function getCacheFileName() {
$hash = '';
foreach ($this->files AS $file) {
$hash .= $this->makeFileHash($file);
}
foreach ($this->codes AS $code) {
$hash .= $code;
}
return md5($hash) . "." . $this->outputFileType;
}
/**
* @param Manifest $cache
*
* @return string
*/
public function getCachedContent($cache) {
$fileContents = '';
foreach ($this->files AS $file) {
$fileContents .= $this->parseFile($cache,
Filesystem::readFile($file), $file) . "\n";
}
foreach ($this->codes AS $code) {
$fileContents .= $code . "\n";
}
return $fileContents;
}
protected function makeFileHash($file) {
return $file . filemtime($file);
}
/**
* @param Manifest $cache
* @param $content
* @param $originalFilePath
*
* @return mixed
*/
protected function parseFile($cache, $content, $originalFilePath) {
return $content;
}
}PKQ��[��r�TTAssetManager.phpnu�[���<?php
namespace Nextend\Framework\Asset;
use Nextend\Framework\Data\Data;
use Nextend\Framework\PageFlow;
use Nextend\Framework\Plugin;
use Nextend\Framework\View\Html;
/**
* Class Manager
*
*/
class AssetManager {
/**
* Helper to safely store AssetManager related optimization data
*
* @var Data
*/
public static $stateStorage;
/**
* @var CSS\Asset
*/
public static $css;
private static $cssStack = array();
/**
* @var Css\Less\Asset
*/
public static $less;
private static $lessStack = array();
/**
* @var Js\Asset
*/
public static $js;
private static $jsStack = array();
/**
* @var Fonts\Google\Asset
*/
public static $googleFonts;
/**
* @var Image\Asset
*/
public static $image;
private static $imageStack = array();
private static $googleFontsStack = array();
public static $cacheAll = true;
public static $cachedGroups = array();
public static function getInstance() {
static $instance = null;
if (null === $instance) {
$instance = new self();
self::createStack();
Plugin::doAction('n2_assets_manager_started');
}
return $instance;
}
public static function createStack() {
self::$stateStorage = new Data();
self::$css = new Css\Asset();
array_unshift(self::$cssStack, self::$css);
self::$less = new Css\Less\Asset();
array_unshift(self::$lessStack, self::$less);
self::$js = new Js\Asset();
array_unshift(self::$jsStack, self::$js);
self::$googleFonts = new Fonts\Google\Asset();
array_unshift(self::$googleFontsStack, self::$googleFonts);
self::$image = new Image\Asset();
array_unshift(self::$imageStack, self::$image);
}
public static function removeStack() {
if (count(self::$cssStack) > 0) {
self::$stateStorage = new Data();
/**
* @var $previousCSS Css\Asset
* @var $previousLESS Css\Less\Asset
* @var $previousJS Js\Asset
* @var $previousGoogleFons Fonts\Google\Asset
* @var $previousImage Image\Asset
*/
$previousCSS = array_shift(self::$cssStack);
self::$css = self::$cssStack[0];
$previousLESS = array_shift(self::$lessStack);
self::$less = self::$lessStack[0];
$previousJS = array_shift(self::$jsStack);
self::$js = self::$jsStack[0];
$previousGoogleFons = array_shift(self::$googleFontsStack);
self::$googleFonts = self::$googleFontsStack[0];
$previousImage = array_shift(self::$imageStack);
self::$image = self::$imageStack[0];
return array(
'css' => $previousCSS->serialize(),
'less' =>
$previousLESS->serialize(),
'js' => $previousJS->serialize(),
'googleFonts' =>
$previousGoogleFons->serialize(),
'image' =>
$previousImage->serialize()
);
}
echo "Too much remove stack on the asset manager...";
PageFlow::exitApplication();
}
public static function enableCacheAll() {
self::$cacheAll = true;
}
public static function disableCacheAll() {
self::$cacheAll = false;
}
public static function addCachedGroup($group) {
if (!in_array($group, self::$cachedGroups)) {
self::$cachedGroups[] = $group;
}
}
public static function loadFromArray($array) {
self::$css->unSerialize($array['css']);
self::$less->unSerialize($array['less']);
self::$js->unSerialize($array['js']);
self::$googleFonts->unSerialize($array['googleFonts']);
self::$image->unSerialize($array['image']);
}
public static function getCSS($path = false) {
if (self::$css) {
if ($path) {
return self::$css->get();
}
return self::$css->getOutput();
}
return '';
}
public static function getJs($path = false) {
if (self::$js) {
if ($path) {
return self::$js->get();
}
return self::$js->getOutput();
}
return '';
}
public static function generateAjaxCSS() {
return Html::style(self::$css->getAjaxOutput());
}
public static function generateAjaxJS() {
return self::$js->getAjaxOutput();
}
}PKQ��["+5�� �
Css/Asset.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css;
use Nextend\Framework\Asset\AbstractAsset;
use Nextend\Framework\Asset\Fonts\Google\Google;
use Nextend\Framework\Platform\Platform;
use Nextend\Framework\Plugin;
use Nextend\Framework\Settings;
use Nextend\Framework\Url\Url;
use Nextend\Framework\View\Html;
use Nextend\SmartSlider3\SmartSlider3Info;
class Asset extends AbstractAsset {
public function __construct() {
$this->cache = new Cache();
}
public function getOutput() {
$headerPreload = !!Settings::get('header-preload',
'0');
$needProtocol = !Settings::get('protocol-relative',
'1');
Google::build();
Less\Less::build();
$output = "";
$this->urls = array_unique($this->urls);
foreach ($this->staticGroupPreload as $file) {
$url = $this->filterSrc(Url::pathToUri($file,
$needProtocol) . '?ver=' . SmartSlider3Info::$revisionShort);
$output .= Html::style($url, true, array(
'media' => 'all'
)) . "\n";
if ($headerPreload) {
header('Link: <' . $url . '>;
rel=preload; as=style', false);
}
}
$linkAttributes = array(
'media' => 'all'
);
if (!Platform::isAdmin() &&
Settings::get('async-non-primary-css', 0)) {
$linkAttributes = array(
'media' => 'print',
'onload' =>
"this.media='all'"
);
}
foreach ($this->urls as $url) {
$url = $this->filterSrc($url);
$output .= Html::style($url, true, $linkAttributes) .
"\n";
}
foreach ($this->getFiles() as $file) {
if (substr($file, 0, 2) == '//') {
$url = $this->filterSrc($file);
} else {
$url = $this->filterSrc(Url::pathToUri($file,
$needProtocol) . '?ver=' . SmartSlider3Info::$revisionShort);
}
$output .= Html::style($url, true, $linkAttributes) .
"\n";
}
$inlineText = '';
foreach ($this->inline as $key => $value) {
if (!is_numeric($key)) {
$output .= Html::style($value, false, array(
'data-related' => $key
)) . "\n";
} else {
$inlineText .= $value;
}
}
if (!empty($inlineText)) {
$output .= Html::style($inlineText) . "\n";
}
return $output;
}
private function filterSrc($src) {
return Plugin::applyFilters('n2_style_loader_src', $src);
}
public function get() {
Google::build();
Less\Less::build();
return array(
'url' => $this->urls,
'files' =>
array_merge($this->staticGroupPreload, $this->getFiles()),
'inline' => implode("\n",
$this->inline)
);
}
public function getAjaxOutput() {
$output = implode("\n", $this->inline);
return $output;
}
}PKQ��[��FF
Css/Cache.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css;
use Nextend\Framework\Asset\AbstractCache;
use Nextend\Framework\Filesystem\Filesystem;
use Nextend\Framework\Url\Url;
class Cache extends AbstractCache {
public $outputFileType = "css";
private $baseUrl = '';
private $basePath = '';
public function getAssetFileFolder() {
return Filesystem::getWebCachePath() . DIRECTORY_SEPARATOR .
$this->group . DIRECTORY_SEPARATOR;
}
protected function parseFile($cache, $content, $originalFilePath) {
$this->basePath = dirname($originalFilePath);
$this->baseUrl =
Filesystem::pathToAbsoluteURL($this->basePath);
return
preg_replace_callback('#url\([\'"]?([^"\'\)]+)[\'"]?\)#',
array(
$this,
'makeAbsoluteUrl'
), $content);
}
private function makeAbsoluteUrl($matches) {
if (substr($matches[1], 0, 5) == 'data:') return
$matches[0];
if (substr($matches[1], 0, 4) == 'http') return
$matches[0];
if (substr($matches[1], 0, 2) == '//') return
$matches[0];
$exploded = explode('?', $matches[1]);
$realPath = realpath($this->basePath . '/' .
$exploded[0]);
if ($realPath === false) {
return 'url(' . str_replace(array(
'http://',
'https://'
), '//', $this->baseUrl) . '/' .
$matches[1] . ')';
}
$realPath = Filesystem::convertToRealDirectorySeparator($realPath);
return 'url(' . Url::pathToUri($realPath, false) .
(isset($exploded[1]) ? '?' . $exploded[1] : '') .
')';
}
}PKQ��[�� �� Css/Css.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css;
use Nextend\Framework\Asset\AssetManager;
class Css {
public static function addFile($pathToFile, $group) {
AssetManager::$css->addFile($pathToFile, $group);
}
public static function addFiles($path, $files, $group) {
AssetManager::$css->addFiles($path, $files, $group);
}
public static function addStaticGroupPreload($file, $group) {
AssetManager::$css->addStaticGroupPreload($file, $group);
}
public static function addStaticGroup($file, $group) {
AssetManager::$css->addStaticGroup($file, $group);
}
public static function addCode($code, $group, $unshift = false) {
AssetManager::$css->addCode($code, $group, $unshift);
}
public static function addUrl($url) {
AssetManager::$css->addUrl($url);
}
public static function addInline($code, $name = null) {
AssetManager::$css->addInline($code, $name);
}
}PKQ��[ (K;;Css/Less/Asset.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less;
use Nextend\Framework\Asset\AbstractAsset;
class Asset extends AbstractAsset {
public function __construct() {
$this->cache = new Cache();
}
protected function uniqueFiles() {
$this->initGroups();
}
public function getFiles() {
$this->uniqueFiles();
$files = array();
foreach ($this->groups AS $group) {
$files[$group] = $this->cache->getAssetFile($group,
$this->files[$group], $this->codes[$group]);
}
return $files;
}
}PKQ��[!��:��Css/Less/Cache.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less;
use Exception;
use Nextend\Framework\Cache\Manifest;
class Cache extends \Nextend\Framework\Asset\Css\Cache {
public $outputFileType = "less.css";
public function getAssetFile($group, &$files = array(), &$codes
= array()) {
$this->group = $group;
$this->files = $files;
$this->codes = $codes;
$cache = new Manifest($group, false, true);
$hash = $this->getHash();
return $cache->makeCache($group . "." .
$this->outputFileType, $hash, array(
$this,
'getCachedContent'
));
}
/**
* @param Manifest $cache
*
* @return string
* @throws Exception
*/
public function getCachedContent($cache) {
$fileContents = '';
foreach ($this->files AS $parameters) {
$compiler = new LessCompiler();
if (!empty($parameters['importDir'])) {
$compiler->addImportDir($parameters['importDir']);
}
$compiler->setVariables($parameters['context']);
$fileContents .=
$compiler->compileFile($parameters['file']);
}
return $fileContents;
}
protected function makeFileHash($parameters) {
return json_encode($parameters) .
filemtime($parameters['file']);
}
protected function parseFile($cache, $content, $lessParameters) {
return parent::parseFile($cache, $content,
$lessParameters['file']);
}
}PKQ��[>���G
G
Css/Less/Formatter/Classic.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less\Formatter;
class Classic {
public $indentChar = " ";
public $break = "\n";
public $open = " {";
public $close = "}";
public $selectorSeparator = ", ";
public $assignSeparator = ":";
public $openSingle = " { ";
public $closeSingle = " }";
public $disableSingle = false;
public $breakSelectors = false;
public $compressColors = false;
public function __construct() {
$this->indentLevel = 0;
}
public function indentStr($n = 0) {
return str_repeat($this->indentChar, max($this->indentLevel +
$n, 0));
}
public function property($name, $value) {
return $name . $this->assignSeparator . $value . ";";
}
protected function isEmpty($block) {
if (empty($block->lines)) {
foreach ($block->children as $child) {
if (!$this->isEmpty($child)) return false;
}
return true;
}
return false;
}
public function block($block) {
$ret = '';
if ($this->isEmpty($block)) return $ret;
$inner = $pre = $this->indentStr();
$isSingle = !$this->disableSingle &&
is_null($block->type) && count($block->lines) == 1;
if (!empty($block->selectors)) {
$this->indentLevel++;
if ($this->breakSelectors) {
$selectorSeparator = $this->selectorSeparator .
$this->break . $pre;
} else {
$selectorSeparator = $this->selectorSeparator;
}
$ret .= $pre . implode($selectorSeparator,
$block->selectors);
if ($isSingle) {
$ret .= $this->openSingle;
$inner = "";
} else {
$ret .= $this->open . $this->break;
$inner = $this->indentStr();
}
}
if (!empty($block->lines)) {
$glue = $this->break . $inner;
$ret .= $inner . implode($glue, $block->lines);
if (!$isSingle && !empty($block->children)) {
$ret .= $this->break;
}
}
foreach ($block->children as $child) {
$ret .= $this->block($child);
}
if (!empty($block->selectors)) {
if (!$isSingle && empty($block->children)) $ret .=
$this->break;
if ($isSingle) {
$ret .= $this->closeSingle . $this->break;
} else {
$ret .= $pre . $this->close . $this->break;
}
$this->indentLevel--;
}
return $ret;
}
}PKQ��[�39Edd!Css/Less/Formatter/Compressed.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less\Formatter;
class Compressed extends Classic {
public $disableSingle = true;
public $open = "{";
public $selectorSeparator = ",";
public $assignSeparator = ":";
public $break = "";
public $compressColors = true;
public function indentStr($n = 0) {
return "";
}
}PKQ��[rf���� Css/Less/Formatter/Debug.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less\Formatter;
class Debug extends Classic {
public $disableSingle = true;
public $breakSelectors = true;
public $assignSeparator = ": ";
public $selectorSeparator = ",";
}PKQ��[��m$��Css/Less/Less.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less;
use Nextend\Framework\Asset\AssetManager;
use Nextend\Framework\Asset\Css\Css;
class Less {
public static function addFile($pathToFile, $group, $context = array(),
$importDir = null) {
AssetManager::$less->addFile(array(
'file' => $pathToFile,
'context' => $context,
'importDir' => $importDir
), $group);
}
public static function build() {
foreach (AssetManager::$less->getFiles() AS $group => $file)
{
if (substr($file, 0, 2) == '//') {
Css::addUrl($file);
} else if (!realpath($file)) {
// For database cache the $file contains the content of the
generated CSS file
Css::addCode($file, $group, true);
} else {
Css::addFile($file, $group);
}
}
}
}PKQ��[ѥ�"��Css/Less/LessCompiler.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less;
use Exception;
use Nextend\Framework\Asset\Css\Less\Formatter\Classic;
use Nextend\Framework\Asset\Css\Less\Formatter\Compressed;
use Nextend\Framework\Asset\Css\Less\Formatter\Debug;
use Nextend\Framework\Filesystem\Filesystem;
use stdClass;
/**
* The less compiler and parser.
*
* Converting LESS to CSS is a three stage process. The incoming file is
parsed
* by `lessc_parser` into a syntax tree, then it is compiled into another
tree
* representing the CSS structure by `lessc`. The CSS tree is fed into a
* formatter, like `lessc_formatter` which then outputs CSS as a string.
*
* During the first compile, all values are *reduced*, which means that
their
* types are brought to the lowest form before being dump as strings. This
* handles math equations, variable dereferences, and the like.
*
* The `parse` function of `lessc` is the entry point.
*
* In summary:
*
* The `lessc` class creates an intstance of the parser, feeds it LESS
code,
* then transforms the resulting tree to a CSS tree. This class also holds
the
* evaluation context, such as all available mixins and variables at any
given
* time.
*
* The `lessc_parser` class is only concerned with parsing its input.
*
* The `lessc_formatter` takes a CSS tree, and dumps it to a formatted
string,
* handling things like indentation.
*/
class LessCompiler {
static public $VERSION = "v0.3.8";
static protected $TRUE = array(
"keyword",
"true"
);
static protected $FALSE = array(
"keyword",
"false"
);
protected $libFunctions = array();
protected $registeredVars = array();
protected $preserveComments = false;
public $vPrefix = '@'; // prefix of abstract properties
public $mPrefix = '$'; // prefix of abstract blocks
public $parentSelector = '&';
public $importDisabled = false;
public $importDir = '';
protected $numberPrecision = null;
// set to the parser that generated the current line when compiling
// so we know how to create error messages
public $sourceParser = null;
protected $sourceLoc = null;
static public $defaultValue = array(
"keyword",
""
);
static protected $nextImportId = 0; // uniquely identify imports
// attempts to find the path of an import url, returns null for css
files
protected function findImport($url) {
foreach ((array)$this->importDir as $dir) {
$full = $dir . (substr($dir, -1) != '/' ?
'/' : '') . $url;
if ($this->fileExists($file = $full . '.n2less')
|| $this->fileExists($file = $full)) {
return $file;
}
}
return null;
}
protected function fileExists($name) {
return @is_file($name);
}
static public function compressList($items, $delim) {
if (!isset($items[1]) && isset($items[0])) return
$items[0]; else return array(
'list',
$delim,
$items
);
}
static public function preg_quote($what) {
return preg_quote($what, '/');
}
protected function tryImport($importPath, $parentBlock, $out) {
if ($importPath[0] == "function" &&
$importPath[1] == "url") {
$importPath = $this->flattenList($importPath[2]);
}
$str = $this->coerceString($importPath);
if ($str === null) return false;
$url = $this->compileValue($this->lib_e($str));
if (isset($this->registeredVars[$url])) {
$url = $this->registeredVars[$url];
}
// don't import if it ends in css
if (strlen($url) >= 4 && substr_compare($url,
'.css', -4, 4) === 0) return false;
$realPath = $this->findImport($url);
if ($realPath === null) return false;
if ($this->importDisabled) {
return array(
false,
"/* import disabled */"
);
}
$this->addParsedFile($realPath);
$parser = $this->makeParser($realPath);
$root = $parser->parse(file_get_contents($realPath));
// set the parents of all the block props
foreach ($root->props as $prop) {
if ($prop[0] == "block") {
$prop[1]->parent = $parentBlock;
}
}
// copy mixins into scope, set their parents
// bring blocks from import into current block
// TODO: need to mark the source parser these came from this file
foreach ($root->children as $childName => $child) {
if (isset($parentBlock->children[$childName])) {
$parentBlock->children[$childName] =
array_merge($parentBlock->children[$childName], $child);
} else {
$parentBlock->children[$childName] = $child;
}
}
$pi = pathinfo($realPath);
$dir = $pi["dirname"];
list($top, $bottom) = $this->sortProps($root->props, true);
$this->compileImportedProps($top, $parentBlock, $out, $parser,
$dir);
return array(
true,
$bottom,
$parser,
$dir
);
}
protected function compileImportedProps($props, $block, $out,
$sourceParser, $importDir) {
$oldSourceParser = $this->sourceParser;
$oldImport = $this->importDir;
// TODO: this is because the importDir api is stupid
$this->importDir = (array)$this->importDir;
array_unshift($this->importDir, $importDir);
foreach ($props as $prop) {
$this->compileProp($prop, $block, $out);
}
$this->importDir = $oldImport;
$this->sourceParser = $oldSourceParser;
}
/**
* Recursively compiles a block.
*
* A block is analogous to a CSS block in most cases. A single LESS
document
* is encapsulated in a block when parsed, but it does not have parent
tags
* so all of it's children appear on the root level when compiled.
*
* Blocks are made up of props and children.
*
* Props are property instructions, array tuples which describe an
action
* to be taken, eg. write a property, set a variable, mixin a block.
*
* The children of a block are just all the blocks that are defined
within.
* This is used to look up mixins when performing a mixin.
*
* Compiling the block involves pushing a fresh environment on the
stack,
* and iterating through the props, compiling each one.
*
* See lessc::compileProp()
*
*/
protected function compileBlock($block) {
switch ($block->type) {
case "root":
$this->compileRoot($block);
break;
case null:
$this->compileCSSBlock($block);
break;
case "media":
$this->compileMedia($block);
break;
case "directive":
$name = "@" . $block->name;
if (!empty($block->value)) {
$name .= " " .
$this->compileValue($this->reduce($block->value));
}
$this->compileNestedBlock($block, array($name));
break;
default:
$this->throwError("unknown block type:
$block->type\n");
}
}
protected function compileCSSBlock($block) {
$env = $this->pushEnv();
$selectors = $this->compileSelectors($block->tags);
$env->selectors = $this->multiplySelectors($selectors);
$out = $this->makeOutputBlock(null,
$env->selectors);
$this->scope->children[] = $out;
$this->compileProps($block, $out);
$block->scope = $env; // mixins carry scope with them!
$this->popEnv();
}
protected function compileMedia($media) {
$env = $this->pushEnv($media);
$parentScope = $this->mediaParent($this->scope);
$query =
$this->compileMediaQuery($this->multiplyMedia($env));
$this->scope =
$this->makeOutputBlock($media->type, array($query));
$parentScope->children[] = $this->scope;
$this->compileProps($media, $this->scope);
if (count($this->scope->lines) > 0) {
$orphanSelelectors = $this->findClosestSelectors();
if (!is_null($orphanSelelectors)) {
$orphan = $this->makeOutputBlock(null,
$orphanSelelectors);
$orphan->lines = $this->scope->lines;
array_unshift($this->scope->children, $orphan);
$this->scope->lines = array();
}
}
$this->scope = $this->scope->parent;
$this->popEnv();
}
protected function mediaParent($scope) {
while (!empty($scope->parent)) {
if (!empty($scope->type) && $scope->type !=
"media") {
break;
}
$scope = $scope->parent;
}
return $scope;
}
protected function compileNestedBlock($block, $selectors) {
$this->pushEnv($block);
$this->scope =
$this->makeOutputBlock($block->type, $selectors);
$this->scope->parent->children[] = $this->scope;
$this->compileProps($block, $this->scope);
$this->scope = $this->scope->parent;
$this->popEnv();
}
protected function compileRoot($root) {
$this->pushEnv();
$this->scope = $this->makeOutputBlock($root->type);
$this->compileProps($root, $this->scope);
$this->popEnv();
}
protected function compileProps($block, $out) {
foreach ($this->sortProps($block->props) as $prop) {
$this->compileProp($prop, $block, $out);
}
}
protected function sortProps($props, $split = false) {
$vars = array();
$imports = array();
$other = array();
foreach ($props as $prop) {
switch ($prop[0]) {
case "assign":
if (isset($prop[1][0]) && $prop[1][0] ==
$this->vPrefix) {
$vars[] = $prop;
} else {
$other[] = $prop;
}
break;
case "import":
$id = self::$nextImportId++;
$prop[] = $id;
$imports[] = $prop;
$other[] = array(
"import_mixin",
$id
);
break;
default:
$other[] = $prop;
}
}
if ($split) {
return array(
array_merge($vars, $imports),
$other
);
} else {
return array_merge($vars, $imports, $other);
}
}
protected function compileMediaQuery($queries) {
$compiledQueries = array();
foreach ($queries as $query) {
$parts = array();
foreach ($query as $q) {
switch ($q[0]) {
case "mediaType":
$parts[] = implode(" ", array_slice($q,
1));
break;
case "mediaExp":
if (isset($q[2])) {
$parts[] = "($q[1]: " .
$this->compileValue($this->reduce($q[2])) . ")";
} else {
$parts[] = "($q[1])";
}
break;
case "variable":
$parts[] =
$this->compileValue($this->reduce($q));
break;
}
}
if (count($parts) > 0) {
$compiledQueries[] = implode(" and ", $parts);
}
}
$out = "@media";
if (!empty($parts)) {
$out .= " " .
implode($this->formatter->selectorSeparator, $compiledQueries);
}
return $out;
}
protected function multiplyMedia($env, $childQueries = null) {
if (is_null($env) || !empty($env->block->type) &&
$env->block->type != "media") {
return $childQueries;
}
// plain old block, skip
if (empty($env->block->type)) {
return $this->multiplyMedia($env->parent, $childQueries);
}
$out = array();
$queries = $env->block->queries;
if (is_null($childQueries)) {
$out = $queries;
} else {
foreach ($queries as $parent) {
foreach ($childQueries as $child) {
$out[] = array_merge($parent, $child);
}
}
}
return $this->multiplyMedia($env->parent, $out);
}
protected function expandParentSelectors(&$tag, $replace) {
$parts = explode("$&$", $tag);
$count = 0;
foreach ($parts as &$part) {
$part = str_replace($this->parentSelector, $replace, $part,
$c);
$count += $c;
}
$tag = implode($this->parentSelector, $parts);
return $count;
}
protected function findClosestSelectors() {
$env = $this->env;
$selectors = null;
while ($env !== null) {
if (isset($env->selectors)) {
$selectors = $env->selectors;
break;
}
$env = $env->parent;
}
return $selectors;
}
// multiply $selectors against the nearest selectors in env
protected function multiplySelectors($selectors) {
// find parent selectors
$parentSelectors = $this->findClosestSelectors();
if (is_null($parentSelectors)) {
// kill parent reference in top level selector
foreach ($selectors as &$s) {
$this->expandParentSelectors($s, "");
}
return $selectors;
}
$out = array();
foreach ($parentSelectors as $parent) {
foreach ($selectors as $child) {
$count = $this->expandParentSelectors($child, $parent);
// don't prepend the parent tag if & was used
if ($count > 0) {
$out[] = trim($child);
} else {
$out[] = trim($parent . ' ' . $child);
}
}
}
return $out;
}
// reduces selector expressions
protected function compileSelectors($selectors) {
$out = array();
foreach ($selectors as $s) {
if (is_array($s)) {
list(, $value) = $s;
$out[] =
trim($this->compileValue($this->reduce($value)));
} else {
$out[] = $s;
}
}
return $out;
}
protected function eq($left, $right) {
return $left == $right;
}
protected function patternMatch($block, $callingArgs) {
// match the guards if it has them
// any one of the groups must have all its guards pass for a match
if (!empty($block->guards)) {
$groupPassed = false;
foreach ($block->guards as $guardGroup) {
foreach ($guardGroup as $guard) {
$this->pushEnv();
$this->zipSetArgs($block->args, $callingArgs);
$negate = false;
if ($guard[0] == "negate") {
$guard = $guard[1];
$negate = true;
}
$passed = $this->reduce($guard) == self::$TRUE;
if ($negate) $passed = !$passed;
$this->popEnv();
if ($passed) {
$groupPassed = true;
} else {
$groupPassed = false;
break;
}
}
if ($groupPassed) break;
}
if (!$groupPassed) {
return false;
}
}
$numCalling = count($callingArgs);
if (empty($block->args)) {
return $block->isVararg || $numCalling == 0;
}
$i = -1; // no args
// try to match by arity or by argument literal
foreach ($block->args as $i => $arg) {
switch ($arg[0]) {
case "lit":
if (empty($callingArgs[$i]) || !$this->eq($arg[1],
$callingArgs[$i])) {
return false;
}
break;
case "arg":
// no arg and no default value
if (!isset($callingArgs[$i]) &&
!isset($arg[2])) {
return false;
}
break;
case "rest":
$i--; // rest can be empty
break 2;
}
}
if ($block->isVararg) {
return true; // not having enough is handled above
} else {
$numMatched = $i + 1;
// greater than becuase default values always match
return $numMatched >= $numCalling;
}
}
protected function patternMatchAll($blocks, $callingArgs) {
$matches = null;
foreach ($blocks as $block) {
if ($this->patternMatch($block, $callingArgs)) {
$matches[] = $block;
}
}
return $matches;
}
// attempt to find blocks matched by path and args
protected function findBlocks($searchIn, $path, $args, $seen = array())
{
if ($searchIn == null) return null;
if (isset($seen[$searchIn->id])) return null;
$seen[$searchIn->id] = true;
$name = $path[0];
if (isset($searchIn->children[$name])) {
$blocks = $searchIn->children[$name];
if (count($path) == 1) {
$matches = $this->patternMatchAll($blocks, $args);
if (!empty($matches)) {
// This will return all blocks that match in the
closest
// scope that has any matching block, like lessjs
return $matches;
}
} else {
$matches = array();
foreach ($blocks as $subBlock) {
$subMatches = $this->findBlocks($subBlock,
array_slice($path, 1), $args, $seen);
if (!is_null($subMatches)) {
foreach ($subMatches as $sm) {
$matches[] = $sm;
}
}
}
return count($matches) > 0 ? $matches : null;
}
}
if ($searchIn->parent === $searchIn) return null;
return $this->findBlocks($searchIn->parent, $path, $args,
$seen);
}
// sets all argument names in $args to either the default value
// or the one passed in through $values
protected function zipSetArgs($args, $values) {
$i = 0;
$assignedValues = array();
foreach ($args as $a) {
if ($a[0] == "arg") {
if ($i < count($values) &&
!is_null($values[$i])) {
$value = $values[$i];
} elseif (isset($a[2])) {
$value = $a[2];
} else $value = null;
$value = $this->reduce($value);
$this->set($a[1], $value);
$assignedValues[] = $value;
}
$i++;
}
// check for a rest
$last = end($args);
if (!empty($last) && $last[0] == "rest") {
$rest = array_slice($values, count($args) - 1);
$this->set($last[1], $this->reduce(array(
"list",
" ",
$rest
)));
}
$this->env->arguments = $assignedValues;
}
// compile a prop and update $lines or $blocks appropriately
protected function compileProp($prop, $block, $out) {
// set error position context
$this->sourceLoc = isset($prop[-1]) ? $prop[-1] : -1;
switch ($prop[0]) {
case 'assign':
list(, $name, $value) = $prop;
if ($name[0] == $this->vPrefix) {
$this->set($name, $value);
} else {
$out->lines[] =
$this->formatter->property($name,
$this->compileValue($this->reduce($value)));
}
break;
case 'block':
list(, $child) = $prop;
$this->compileBlock($child);
break;
case 'mixin':
list(, $path, $args, $suffix) = $prop;
$args = array_map(array(
$this,
"reduce"
), (array)$args);
$mixins = $this->findBlocks($block, $path, $args);
if ($mixins === null) {
// fwrite(STDERR,"failed to find block:
".implode(" > ", $path)."\n");
break; // throw error here??
}
foreach ($mixins as $mixin) {
$haveScope = false;
if (isset($mixin->parent->scope)) {
$haveScope = true;
$mixinParentEnv = $this->pushEnv();
$mixinParentEnv->storeParent =
$mixin->parent->scope;
}
$haveArgs = false;
if (isset($mixin->args)) {
$haveArgs = true;
$this->pushEnv();
$this->zipSetArgs($mixin->args, $args);
}
$oldParent = $mixin->parent;
if ($mixin != $block) $mixin->parent = $block;
foreach ($this->sortProps($mixin->props) as
$subProp) {
if ($suffix !== null && $subProp[0] ==
"assign" && is_string($subProp[1]) &&
$subProp[1][0] != $this->vPrefix) {
$subProp[2] = array(
'list',
' ',
array(
$subProp[2],
array(
'keyword',
$suffix
)
)
);
}
$this->compileProp($subProp, $mixin, $out);
}
$mixin->parent = $oldParent;
if ($haveArgs) $this->popEnv();
if ($haveScope) $this->popEnv();
}
break;
case 'raw':
$out->lines[] = $prop[1];
break;
case "directive":
list(, $name, $value) = $prop;
$out->lines[] = "@$name " .
$this->compileValue($this->reduce($value)) . ';';
break;
case "comment":
$out->lines[] = $prop[1];
break;
case "import";
list(, $importPath, $importId) = $prop;
$importPath = $this->reduce($importPath);
if (!isset($this->env->imports)) {
$this->env->imports = array();
}
$result = $this->tryImport($importPath, $block, $out);
$this->env->imports[$importId] = $result === false ?
array(
false,
"@import " .
$this->compileValue($importPath) . ";"
) : $result;
break;
case "import_mixin":
list(, $importId) = $prop;
$import = $this->env->imports[$importId];
if ($import[0] === false) {
$out->lines[] = $import[1];
} else {
list(, $bottom, $parser, $importDir) = $import;
$this->compileImportedProps($bottom, $block, $out,
$parser, $importDir);
}
break;
default:
$this->throwError("unknown op: {$prop[0]}\n");
}
}
/**
* Compiles a primitive value into a CSS property value.
*
* Values in lessphp are typed by being wrapped in arrays, their format
is
* typically:
*
* array(type, contents [, additional_contents]*)
*
* The input is expected to be reduced. This function will not work on
* things like expressions and variables.
*/
protected function compileValue($value) {
switch ($value[0]) {
case 'list':
// [1] - delimiter
// [2] - array of values
return implode($value[1], array_map(array(
$this,
'compileValue'
), $value[2]));
case 'raw_color':
if (!empty($this->formatter->compressColors)) {
return
$this->compileValue($this->coerceColor($value));
}
return $value[1];
case 'keyword':
// [1] - the keyword
return $value[1];
case 'number':
list(, $num, $unit) = $value;
// [1] - the number
// [2] - the unit
if ($this->numberPrecision !== null) {
$num = round($num, $this->numberPrecision);
}
return $num . $unit;
case 'string':
// [1] - contents of string (includes quotes)
list(, $delim, $content) = $value;
foreach ($content as &$part) {
if (is_array($part)) {
$part = $this->compileValue($part);
}
}
return $delim . implode($content) . $delim;
case 'color':
// [1] - red component (either number or a %)
// [2] - green component
// [3] - blue component
// [4] - optional alpha component
list(, $r, $g, $b) = $value;
$r = round($r);
$g = round($g);
$b = round($b);
if (count($value) == 5 && $value[4] != 1) { // rgba
return 'rgba(' . $r . ',' . $g .
',' . $b . ',' . $value[4] . ')';
}
$h = sprintf("#%02x%02x%02x", $r, $g, $b);
if (!empty($this->formatter->compressColors)) {
// Converting hex color to short notation (e.g. #003399
to #039)
if ($h[1] === $h[2] && $h[3] === $h[4]
&& $h[5] === $h[6]) {
$h = '#' . $h[1] . $h[3] . $h[5];
}
}
return $h;
case 'function':
list(, $name, $args) = $value;
return $name . '(' .
$this->compileValue($args) . ')';
default: // assumed to be unit
$this->throwError("unknown value type:
$value[0]");
}
}
protected function lib_isnumber($value) {
return $this->toBool($value[0] == "number");
}
protected function lib_isstring($value) {
return $this->toBool($value[0] == "string");
}
protected function lib_iscolor($value) {
return $this->toBool($this->coerceColor($value));
}
protected function lib_iskeyword($value) {
return $this->toBool($value[0] == "keyword");
}
protected function lib_ispixel($value) {
return $this->toBool($value[0] == "number" &&
$value[2] == "px");
}
protected function lib_ispercentage($value) {
return $this->toBool($value[0] == "number" &&
$value[2] == "%");
}
protected function lib_isem($value) {
return $this->toBool($value[0] == "number" &&
$value[2] == "em");
}
protected function lib_isrem($value) {
return $this->toBool($value[0] == "number" &&
$value[2] == "rem");
}
protected function lib_rgbahex($color) {
$color = $this->coerceColor($color);
if (is_null($color)) $this->throwError("color expected for
rgbahex");
return sprintf("#%02x%02x%02x%02x", isset($color[4]) ?
$color[4] * 255 : 255, $color[1], $color[2], $color[3]);
}
protected function lib_argb($color) {
return $this->lib_rgbahex($color);
}
// utility func to unquote a string
protected function lib_e($arg) {
switch ($arg[0]) {
case "list":
$items = $arg[2];
if (isset($items[0])) {
return $this->lib_e($items[0]);
}
return self::$defaultValue;
case "string":
$arg[1] = "";
return $arg;
case "keyword":
return $arg;
default:
return array(
"keyword",
$this->compileValue($arg)
);
}
}
protected function lib__sprintf($args) {
if ($args[0] != "list") return $args;
$values = $args[2];
$string = array_shift($values);
$template = $this->compileValue($this->lib_e($string));
$i = 0;
if (preg_match_all('/%[dsa]/', $template, $m)) {
foreach ($m[0] as $match) {
$val = isset($values[$i]) ? $this->reduce($values[$i]) :
array(
'keyword',
''
);
// lessjs compat, renders fully expanded color, not raw
color
if ($color = $this->coerceColor($val)) {
$val = $color;
}
$i++;
$rep = $this->compileValue($this->lib_e($val));
$template = preg_replace('/' .
self::preg_quote($match) . '/', $rep, $template, 1);
}
}
$d = $string[0] == "string" ? $string[1] :
'"';
return array(
"string",
$d,
array($template)
);
}
protected function lib_floor($arg) {
$value = $this->assertNumber($arg);
return array(
"number",
floor($value),
$arg[2]
);
}
protected function lib_ceil($arg) {
$value = $this->assertNumber($arg);
return array(
"number",
ceil($value),
$arg[2]
);
}
protected function lib_round($arg) {
$value = $this->assertNumber($arg);
return array(
"number",
round($value),
$arg[2]
);
}
protected function lib_unit($arg) {
if ($arg[0] == "list") {
list($number, $newUnit) = $arg[2];
return array(
"number",
$this->assertNumber($number),
$this->compileValue($this->lib_e($newUnit))
);
} else {
return array(
"number",
$this->assertNumber($arg),
""
);
}
}
/**
* Helper function to get arguments for color manipulation functions.
* takes a list that contains a color like thing and a percentage
*/
protected function colorArgs($args) {
if ($args[0] != 'list' || count($args[2]) < 2) {
return array(
array(
'color',
0,
0,
0
),
0
);
}
list($color, $delta) = $args[2];
$color = $this->assertColor($color);
$delta = floatval($delta[1]);
return array(
$color,
$delta
);
}
protected function lib_darken($args) {
list($color, $delta) = $this->colorArgs($args);
$hsl = $this->toHSL($color);
$hsl[3] = $this->clamp($hsl[3] - $delta, 100);
return $this->toRGB($hsl);
}
protected function lib_lighten($args) {
list($color, $delta) = $this->colorArgs($args);
$hsl = $this->toHSL($color);
$hsl[3] = $this->clamp($hsl[3] + $delta, 100);
return $this->toRGB($hsl);
}
protected function lib_saturate($args) {
list($color, $delta) = $this->colorArgs($args);
$hsl = $this->toHSL($color);
$hsl[2] = $this->clamp($hsl[2] + $delta, 100);
return $this->toRGB($hsl);
}
protected function lib_desaturate($args) {
list($color, $delta) = $this->colorArgs($args);
$hsl = $this->toHSL($color);
$hsl[2] = $this->clamp($hsl[2] - $delta, 100);
return $this->toRGB($hsl);
}
protected function lib_spin($args) {
list($color, $delta) = $this->colorArgs($args);
$hsl = $this->toHSL($color);
$hsl[1] = $hsl[1] + $delta % 360;
if ($hsl[1] < 0) $hsl[1] += 360;
return $this->toRGB($hsl);
}
protected function lib_fadeout($args) {
list($color, $delta) = $this->colorArgs($args);
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) -
$delta / 100);
return $color;
}
protected function lib_fadein($args) {
list($color, $delta) = $this->colorArgs($args);
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) +
$delta / 100);
return $color;
}
protected function lib_hue($color) {
$hsl = $this->toHSL($this->assertColor($color));
return round($hsl[1]);
}
protected function lib_saturation($color) {
$hsl = $this->toHSL($this->assertColor($color));
return round($hsl[2]);
}
protected function lib_lightness($color) {
$hsl = $this->toHSL($this->assertColor($color));
return round($hsl[3]);
}
// get the alpha of a color
// defaults to 1 for non-colors or colors without an alpha
protected function lib_alpha($value) {
if (!is_null($color = $this->coerceColor($value))) {
return isset($color[4]) ? $color[4] : 1;
}
}
// set the alpha of the color
protected function lib_fade($args) {
list($color, $alpha) = $this->colorArgs($args);
$color[4] = $this->clamp($alpha / 100.0);
return $color;
}
protected function lib_percentage($arg) {
$num = $this->assertNumber($arg);
return array(
"number",
$num * 100,
"%"
);
}
// mixes two colors by weight
// mix(@color1, @color2, @weight);
//
http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#mix-instance_method
protected function lib_mix($args) {
if ($args[0] != "list" || count($args[2]) < 3)
$this->throwError("mix expects (color1, color2, weight)");
list($first, $second, $weight) = $args[2];
$first = $this->assertColor($first);
$second = $this->assertColor($second);
$first_a = $this->lib_alpha($first);
$second_a = $this->lib_alpha($second);
$weight = $weight[1] / 100.0;
$w = $weight * 2 - 1;
$a = $first_a - $second_a;
$w1 = (($w * $a == -1 ? $w : ($w + $a) / (1 + $w * $a)) + 1) / 2.0;
$w2 = 1.0 - $w1;
$new = array(
'color',
$w1 * $first[1] + $w2 * $second[1],
$w1 * $first[2] + $w2 * $second[2],
$w1 * $first[3] + $w2 * $second[3],
);
if ($first_a != 1.0 || $second_a != 1.0) {
$new[] = $first_a * $weight + $second_a * ($weight - 1);
}
return $this->fixColor($new);
}
protected function lib_contrast($args) {
if ($args[0] != 'list' || count($args[2]) < 3) {
return array(
array(
'color',
0,
0,
0
),
0
);
}
list($inputColor, $darkColor, $lightColor) = $args[2];
$inputColor = $this->assertColor($inputColor);
$darkColor = $this->assertColor($darkColor);
$lightColor = $this->assertColor($lightColor);
$hsl = $this->toHSL($inputColor);
if ($hsl[3] > 50) {
return $darkColor;
}
return $lightColor;
}
protected function assertColor($value, $error = "expected color
value") {
$color = $this->coerceColor($value);
if (is_null($color)) $this->throwError($error);
return $color;
}
protected function assertNumber($value, $error = "expecting
number") {
if ($value[0] == "number") return $value[1];
$this->throwError($error);
}
protected function toHSL($color) {
if ($color[0] == 'hsl') return $color;
$r = $color[1] / 255;
$g = $color[2] / 255;
$b = $color[3] / 255;
$min = min($r, $g, $b);
$max = max($r, $g, $b);
$L = ($min + $max) / 2;
if ($min == $max) {
$S = $H = 0;
} else {
if ($L < 0.5) $S = ($max - $min) / ($max + $min); else
$S = ($max - $min) / (2.0 - $max - $min);
if ($r == $max) $H = ($g - $b) / ($max - $min); elseif ($g ==
$max) $H = 2.0 + ($b - $r) / ($max - $min);
elseif ($b == $max) $H = 4.0 + ($r - $g) / ($max - $min);
}
$out = array(
'hsl',
($H < 0 ? $H + 6 : $H) * 60,
$S * 100,
$L * 100,
);
if (count($color) > 4) $out[] = $color[4]; // copy alpha
return $out;
}
protected function toRGB_helper($comp, $temp1, $temp2) {
if ($comp < 0) $comp += 1.0; elseif ($comp > 1) $comp -= 1.0;
if (6 * $comp < 1) return $temp1 + ($temp2 - $temp1) * 6 *
$comp;
if (2 * $comp < 1) return $temp2;
if (3 * $comp < 2) return $temp1 + ($temp2 - $temp1) * ((2 / 3)
- $comp) * 6;
return $temp1;
}
/**
* Converts a hsl array into a color value in rgb.
* Expects H to be in range of 0 to 360, S and L in 0 to 100
*/
protected function toRGB($color) {
if ($color == 'color') return $color;
$H = $color[1] / 360;
$S = $color[2] / 100;
$L = $color[3] / 100;
if ($S == 0) {
$r = $g = $b = $L;
} else {
$temp2 = $L < 0.5 ? $L * (1.0 + $S) : $L + $S - $L * $S;
$temp1 = 2.0 * $L - $temp2;
$r = $this->toRGB_helper($H + 1 / 3, $temp1, $temp2);
$g = $this->toRGB_helper($H, $temp1, $temp2);
$b = $this->toRGB_helper($H - 1 / 3, $temp1, $temp2);
}
// $out = array('color', round($r*255), round($g*255),
round($b*255));
$out = array(
'color',
$r * 255,
$g * 255,
$b * 255
);
if (count($color) > 4) $out[] = $color[4]; // copy alpha
return $out;
}
protected function clamp($v, $max = 1, $min = 0) {
return min($max, max($min, $v));
}
/**
* Convert the rgb, rgba, hsl color literals of function type
* as returned by the parser into values of color type.
*/
protected function funcToColor($func) {
$fname = $func[1];
if ($func[2][0] != 'list') return false; // need a list
of arguments
$rawComponents = $func[2][2];
if ($fname == 'hsl' || $fname == 'hsla') {
$hsl = array('hsl');
$i = 0;
foreach ($rawComponents as $c) {
$val = $this->reduce($c);
$val = isset($val[1]) ? floatval($val[1]) : 0;
if ($i == 0) $clamp = 360; elseif ($i < 3) $clamp = 100;
else $clamp = 1;
$hsl[] = $this->clamp($val, $clamp);
$i++;
}
while (count($hsl) < 4) $hsl[] = 0;
return $this->toRGB($hsl);
} elseif ($fname == 'rgb' || $fname == 'rgba')
{
$components = array();
$i = 1;
foreach ($rawComponents as $c) {
$c = $this->reduce($c);
if ($i < 4) {
if ($c[0] == "number" && $c[2] ==
"%") {
$components[] = 255 * ($c[1] / 100);
} else {
$components[] = floatval($c[1]);
}
} elseif ($i == 4) {
if ($c[0] == "number" && $c[2] ==
"%") {
$components[] = 1.0 * ($c[1] / 100);
} else {
$components[] = floatval($c[1]);
}
} else break;
$i++;
}
while (count($components) < 3) $components[] = 0;
array_unshift($components, 'color');
return $this->fixColor($components);
}
return false;
}
protected function reduce($value, $forExpression = false) {
switch ($value[0]) {
case "interpolate":
$reduced = $this->reduce($value[1]);
$var = $this->compileValue($reduced);
$res = $this->reduce(array(
"variable",
$this->vPrefix . $var
));
if (empty($value[2])) $res = $this->lib_e($res);
return $res;
case "variable":
$key = $value[1];
if (is_array($key)) {
$key = $this->reduce($key);
$key = $this->vPrefix .
$this->compileValue($this->lib_e($key));
}
$seen =& $this->env->seenNames;
if (!empty($seen[$key])) {
$this->throwError("infinite loop detected:
$key");
}
$seen[$key] = true;
$out = $this->reduce($this->get($key,
self::$defaultValue));
$seen[$key] = false;
return $out;
case "list":
foreach ($value[2] as &$item) {
$item = $this->reduce($item, $forExpression);
}
return $value;
case "expression":
return $this->evaluate($value);
case "string":
foreach ($value[2] as &$part) {
if (is_array($part)) {
$strip = $part[0] == "variable";
$part = $this->reduce($part);
if ($strip) $part = $this->lib_e($part);
}
}
return $value;
case "escape":
list(, $inner) = $value;
return $this->lib_e($this->reduce($inner));
case "function":
$color = $this->funcToColor($value);
if ($color) return $color;
list(, $name, $args) = $value;
if ($name == "%") $name = "_sprintf";
$f = isset($this->libFunctions[$name]) ?
$this->libFunctions[$name] : array(
$this,
'lib_' . $name
);
if (is_callable($f)) {
if ($args[0] == 'list') $args =
self::compressList($args[2], $args[1]);
$ret = call_user_func($f, $this->reduce($args,
true), $this);
if (is_null($ret)) {
return array(
"string",
"",
array(
$name,
"(",
$args,
")"
)
);
}
// convert to a typed value if the result is a php
primitive
if (is_numeric($ret)) $ret = array(
'number',
$ret,
""
); elseif (!is_array($ret)) $ret = array(
'keyword',
$ret
);
return $ret;
}
// plain function, reduce args
$value[2] = $this->reduce($value[2]);
return $value;
case "unary":
list(, $op, $exp) = $value;
$exp = $this->reduce($exp);
if ($exp[0] == "number") {
switch ($op) {
case "+":
return $exp;
case "-":
$exp[1] *= -1;
return $exp;
}
}
return array(
"string",
"",
array(
$op,
$exp
)
);
}
if ($forExpression) {
switch ($value[0]) {
case "keyword":
if ($color = $this->coerceColor($value)) {
return $color;
}
break;
case "raw_color":
return $this->coerceColor($value);
}
}
return $value;
}
// coerce a value for use in color operation
protected function coerceColor($value) {
switch ($value[0]) {
case 'color':
return $value;
case 'raw_color':
$c = array(
"color",
0,
0,
0
);
$colorStr = substr($value[1], 1);
$num = hexdec($colorStr);
$width = strlen($colorStr) == 3 ? 16 : 256;
for ($i = 3; $i > 0; $i--) { // 3 2 1
$t = $num % $width;
$num /= $width;
$c[$i] = $t * (256 / $width) + $t * floor(16 / $width);
}
return $c;
case 'keyword':
$name = $value[1];
if (isset(self::$cssColors[$name])) {
$rgba = explode(',',
self::$cssColors[$name]);
if (isset($rgba[3])) return array(
'color',
$rgba[0],
$rgba[1],
$rgba[2],
$rgba[3]
);
return array(
'color',
$rgba[0],
$rgba[1],
$rgba[2]
);
}
return null;
}
}
// make something string like into a string
protected function coerceString($value) {
switch ($value[0]) {
case "string":
return $value;
case "keyword":
return array(
"string",
"",
array($value[1])
);
}
return null;
}
// turn list of length 1 into value type
protected function flattenList($value) {
if ($value[0] == "list" && count($value[2]) == 1)
{
return $this->flattenList($value[2][0]);
}
return $value;
}
protected function toBool($a) {
if ($a) return self::$TRUE; else return self::$FALSE;
}
// evaluate an expression
protected function evaluate($exp) {
list(, $op, $left, $right, $whiteBefore, $whiteAfter) = $exp;
$left = $this->reduce($left, true);
$right = $this->reduce($right, true);
if ($leftColor = $this->coerceColor($left)) {
$left = $leftColor;
}
if ($rightColor = $this->coerceColor($right)) {
$right = $rightColor;
}
$ltype = $left[0];
$rtype = $right[0];
// operators that work on all types
if ($op == "and") {
return $this->toBool($left == self::$TRUE && $right
== self::$TRUE);
}
if ($op == "=") {
return $this->toBool($this->eq($left, $right));
}
if ($op == "+" && !is_null($str =
$this->stringConcatenate($left, $right))) {
return $str;
}
// type based operators
$fname = "op_${ltype}_${rtype}";
if (is_callable(array(
$this,
$fname
))) {
$out = $this->$fname($op, $left, $right);
if (!is_null($out)) return $out;
}
// make the expression look it did before being parsed
$paddedOp = $op;
if ($whiteBefore) $paddedOp = " " . $paddedOp;
if ($whiteAfter) $paddedOp .= " ";
return array(
"string",
"",
array(
$left,
$paddedOp,
$right
)
);
}
protected function stringConcatenate($left, $right) {
if ($strLeft = $this->coerceString($left)) {
if ($right[0] == "string") {
$right[1] = "";
}
$strLeft[2][] = $right;
return $strLeft;
}
if ($strRight = $this->coerceString($right)) {
array_unshift($strRight[2], $left);
return $strRight;
}
}
// make sure a color's components don't go out of bounds
protected function fixColor($c) {
foreach (range(1, 3) as $i) {
if ($c[$i] < 0) $c[$i] = 0;
if ($c[$i] > 255) $c[$i] = 255;
}
return $c;
}
protected function op_number_color($op, $lft, $rgt) {
if ($op == '+' || $op == '*') {
return $this->op_color_number($op, $rgt, $lft);
}
}
protected function op_color_number($op, $lft, $rgt) {
if ($rgt[0] == '%') $rgt[1] /= 100;
return $this->op_color_color($op, $lft, array_fill(1,
count($lft) - 1, $rgt[1]));
}
protected function op_color_color($op, $left, $right) {
$out = array('color');
$max = count($left) > count($right) ? count($left) :
count($right);
foreach (range(1, $max - 1) as $i) {
$lval = isset($left[$i]) ? $left[$i] : 0;
$rval = isset($right[$i]) ? $right[$i] : 0;
switch ($op) {
case '+':
$out[] = $lval + $rval;
break;
case '-':
$out[] = $lval - $rval;
break;
case '*':
$out[] = $lval * $rval;
break;
case '%':
$out[] = $lval % $rval;
break;
case '/':
if ($rval == 0) $this->throwError("evaluate
error: can't divide by zero");
$out[] = $lval / $rval;
break;
default:
$this->throwError('evaluate error: color op
number failed on op ' . $op);
}
}
return $this->fixColor($out);
}
function lib_red($color) {
$color = $this->coerceColor($color);
if (is_null($color)) {
$this->throwError('color expected for red()');
}
return $color[1];
}
function lib_green($color) {
$color = $this->coerceColor($color);
if (is_null($color)) {
$this->throwError('color expected for green()');
}
return $color[2];
}
function lib_blue($color) {
$color = $this->coerceColor($color);
if (is_null($color)) {
$this->throwError('color expected for blue()');
}
return $color[3];
}
// operator on two numbers
protected function op_number_number($op, $left, $right) {
$unit = empty($left[2]) ? $right[2] : $left[2];
$value = 0;
switch ($op) {
case '+':
$value = $left[1] + $right[1];
break;
case '*':
$value = $left[1] * $right[1];
break;
case '-':
$value = $left[1] - $right[1];
break;
case '%':
$value = $left[1] % $right[1];
break;
case '/':
if ($right[1] == 0) $this->throwError('parse error:
divide by zero');
$value = $left[1] / $right[1];
break;
case '<':
return $this->toBool($left[1] < $right[1]);
case '>':
return $this->toBool($left[1] > $right[1]);
case '>=':
return $this->toBool($left[1] >= $right[1]);
case '=<':
return $this->toBool($left[1] <= $right[1]);
default:
$this->throwError('parse error: unknown number
operator: ' . $op);
}
return array(
"number",
$value,
$unit
);
}
/* environment functions */
protected function makeOutputBlock($type, $selectors = null) {
$b = new stdClass;
$b->lines = array();
$b->children = array();
$b->selectors = $selectors;
$b->type = $type;
$b->parent = $this->scope;
return $b;
}
// the state of execution
protected function pushEnv($block = null) {
$e = new stdclass;
$e->parent = $this->env;
$e->store = array();
$e->block = $block;
$this->env = $e;
return $e;
}
// pop something off the stack
protected function popEnv() {
$old = $this->env;
$this->env = $this->env->parent;
return $old;
}
// set something in the current env
protected function set($name, $value) {
$this->env->store[$name] = $value;
}
// get the highest occurrence entry for a name
protected function get($name, $default = null) {
$current = $this->env;
$isArguments = $name == $this->vPrefix . 'arguments';
while ($current) {
if ($isArguments && isset($current->arguments)) {
return array(
'list',
' ',
$current->arguments
);
}
if (isset($current->store[$name])) return
$current->store[$name]; else {
$current = isset($current->storeParent) ?
$current->storeParent : $current->parent;
}
}
return $default;
}
// inject array of unparsed strings into environment as variables
protected function injectVariables($args) {
$this->pushEnv();
$parser = new LessParser($this, __METHOD__);
foreach ($args as $name => $strValue) {
if ($name[0] != '@') $name = '@' . $name;
$parser->count = 0;
$parser->buffer = (string)$strValue;
if (!$parser->propertyValue($value)) {
throw new Exception("failed to parse passed in
variable $name: $strValue");
}
$this->set($name, $value);
}
}
/**
* Initialize any static state, can initialize parser for a file
* $opts isn't used yet
*/
public function __construct($fname = null) {
if ($fname !== null) {
// used for deprecated parse method
$this->_parseFile = $fname;
}
}
public function compile($string, $name = null) {
$locale = setlocale(LC_NUMERIC, 0);
setlocale(LC_NUMERIC, "C");
$this->parser = $this->makeParser($name);
$root = $this->parser->parse($string);
$this->env = null;
$this->scope = null;
$this->formatter = $this->newFormatter();
if (!empty($this->registeredVars)) {
$this->injectVariables($this->registeredVars);
}
$this->sourceParser = $this->parser; // used for error
messages
$this->compileBlock($root);
$out = $this->formatter->block($this->scope);
setlocale(LC_NUMERIC, $locale);
return $out;
}
public function compileFile($fname, $outFname = null) {
if (!is_readable($fname)) {
throw new Exception('load error: failed to find ' .
$fname);
}
$pi = pathinfo($fname);
$oldImport = $this->importDir;
$this->importDir = (array)$this->importDir;
$this->importDir[] = $pi['dirname'] . '/';
$this->allParsedFiles = array();
$this->addParsedFile($fname);
$out = $this->compile(file_get_contents($fname), $fname);
$this->importDir = $oldImport;
if ($outFname !== null) {
return file_put_contents($outFname, $out);
}
return $out;
}
// compile only if changed input has changed or output doesn't
exist
public function checkedCompile($in, $out) {
if (!is_file($out) || filemtime($in) > filemtime($out)) {
$this->compileFile($in, $out);
return true;
}
return false;
}
/**
* Execute lessphp on a .less file or a lessphp cache structure
*
* The lessphp cache structure contains information about a specific
* less file having been parsed. It can be used as a hint for future
* calls to determine whether or not a rebuild is required.
*
* The cache structure contains two important keys that may be used
* externally:
*
* compiled: The final compiled CSS
* updated: The time (in seconds) the CSS was last compiled
*
* The cache structure is a plain-ol' PHP associative array and
can
* be serialized and unserialized without a hitch.
*
* @param mixed $in Input
* @param bool $force Force rebuild?
*
* @return array lessphp cache structure
*/
public function cachedCompile($in, $force = false) {
// assume no root
$root = null;
if (is_string($in)) {
$root = $in;
} elseif (is_array($in) and isset($in['root'])) {
if ($force or !isset($in['files'])) {
// If we are forcing a recompile or if for some reason the
// structure does not contain any file information we
should
// specify the root to trigger a rebuild.
$root = $in['root'];
} elseif (isset($in['files']) and
is_array($in['files'])) {
foreach ($in['files'] as $fname => $ftime) {
if (!file_exists($fname) or filemtime($fname) >
$ftime) {
// One of the files we knew about previously has
changed
// so we should look at our incoming root again.
$root = $in['root'];
break;
}
}
}
} else {
// TODO: Throw an exception? We got neither a string nor
something
// that looks like a compatible lessphp cache structure.
return null;
}
if ($root !== null) {
// If we have a root value which means we should rebuild.
$out = array();
$out['root'] = $root;
$out['compiled'] = $this->compileFile($root);
$out['files'] = $this->allParsedFiles();
$out['updated'] = time();
return $out;
} else {
// No changes, pass back the structure
// we were given initially.
return $in;
}
}
// parse and compile buffer
// This is deprecated
public function parse($str = null, $initialVariables = null) {
if (is_array($str)) {
$initialVariables = $str;
$str = null;
}
$oldVars = $this->registeredVars;
if ($initialVariables !== null) {
$this->setVariables($initialVariables);
}
if ($str == null) {
if (empty($this->_parseFile)) {
throw new Exception("nothing to parse");
}
$out = $this->compileFile($this->_parseFile);
} else {
$out = $this->compile($str);
}
$this->registeredVars = $oldVars;
return $out;
}
protected function makeParser($name) {
$parser = new LessParser($this, $name);
$parser->writeComments = $this->preserveComments;
return $parser;
}
public function setFormatter($name) {
$this->formatterName = $name;
}
/**
* @return Classic
*/
protected function newFormatter() {
return new Compressed();
}
public function setPreserveComments($preserve) {
$this->preserveComments = $preserve;
}
public function registerFunction($name, $func) {
$this->libFunctions[$name] = $func;
}
public function unregisterFunction($name) {
unset($this->libFunctions[$name]);
}
public function setVariables($variables) {
$this->registeredVars = array_merge($this->registeredVars,
$variables);
}
/**
* @return array
*/
public function getVariables() {
return $this->registeredVars;
}
public function unsetVariable($name) {
unset($this->registeredVars[$name]);
}
public function setImportDir($dirs) {
$this->importDir = (array)$dirs;
}
public function addImportDir($dir) {
$this->importDir = (array)$this->importDir;
$this->importDir[] = $dir;
}
public function allParsedFiles() {
return $this->allParsedFiles;
}
protected function addParsedFile($file) {
$this->allParsedFiles[Filesystem::realpath($file)] =
filemtime($file);
}
/**
* Uses the current value of $this->count to show line and line
number
*/
protected function throwError($msg = null) {
if ($this->sourceLoc >= 0) {
$this->sourceParser->throwError($msg,
$this->sourceLoc);
}
throw new Exception($msg);
}
// compile file $in to file $out if $in is newer than $out
// returns true when it compiles, false otherwise
public static function ccompile($in, $out, $less = null) {
if ($less === null) {
$less = new self;
}
return $less->checkedCompile($in, $out);
}
public static function cexecute($in, $force = false, $less = null) {
if ($less === null) {
$less = new self;
}
return $less->cachedCompile($in, $force);
}
static protected $cssColors = array(
'aliceblue' => '240,248,255',
'antiquewhite' => '250,235,215',
'aqua' => '0,255,255',
'aquamarine' => '127,255,212',
'azure' => '240,255,255',
'beige' => '245,245,220',
'bisque' => '255,228,196',
'black' => '0,0,0',
'blanchedalmond' => '255,235,205',
'blue' => '0,0,255',
'blueviolet' => '138,43,226',
'brown' => '165,42,42',
'burlywood' => '222,184,135',
'cadetblue' => '95,158,160',
'chartreuse' => '127,255,0',
'chocolate' => '210,105,30',
'coral' => '255,127,80',
'cornflowerblue' => '100,149,237',
'cornsilk' => '255,248,220',
'crimson' => '220,20,60',
'cyan' => '0,255,255',
'darkblue' => '0,0,139',
'darkcyan' => '0,139,139',
'darkgoldenrod' => '184,134,11',
'darkgray' => '169,169,169',
'darkgreen' => '0,100,0',
'darkgrey' => '169,169,169',
'darkkhaki' => '189,183,107',
'darkmagenta' => '139,0,139',
'darkolivegreen' => '85,107,47',
'darkorange' => '255,140,0',
'darkorchid' => '153,50,204',
'darkred' => '139,0,0',
'darksalmon' => '233,150,122',
'darkseagreen' => '143,188,143',
'darkslateblue' => '72,61,139',
'darkslategray' => '47,79,79',
'darkslategrey' => '47,79,79',
'darkturquoise' => '0,206,209',
'darkviolet' => '148,0,211',
'deeppink' => '255,20,147',
'deepskyblue' => '0,191,255',
'dimgray' => '105,105,105',
'dimgrey' => '105,105,105',
'dodgerblue' => '30,144,255',
'firebrick' => '178,34,34',
'floralwhite' => '255,250,240',
'forestgreen' => '34,139,34',
'fuchsia' => '255,0,255',
'gainsboro' => '220,220,220',
'ghostwhite' => '248,248,255',
'gold' => '255,215,0',
'goldenrod' => '218,165,32',
'gray' => '128,128,128',
'green' => '0,128,0',
'greenyellow' => '173,255,47',
'grey' => '128,128,128',
'honeydew' => '240,255,240',
'hotpink' => '255,105,180',
'indianred' => '205,92,92',
'indigo' => '75,0,130',
'ivory' => '255,255,240',
'khaki' => '240,230,140',
'lavender' => '230,230,250',
'lavenderblush' => '255,240,245',
'lawngreen' => '124,252,0',
'lemonchiffon' => '255,250,205',
'lightblue' => '173,216,230',
'lightcoral' => '240,128,128',
'lightcyan' => '224,255,255',
'lightgoldenrodyellow' => '250,250,210',
'lightgray' => '211,211,211',
'lightgreen' => '144,238,144',
'lightgrey' => '211,211,211',
'lightpink' => '255,182,193',
'lightsalmon' => '255,160,122',
'lightseagreen' => '32,178,170',
'lightskyblue' => '135,206,250',
'lightslategray' => '119,136,153',
'lightslategrey' => '119,136,153',
'lightsteelblue' => '176,196,222',
'lightyellow' => '255,255,224',
'lime' => '0,255,0',
'limegreen' => '50,205,50',
'linen' => '250,240,230',
'magenta' => '255,0,255',
'maroon' => '128,0,0',
'mediumaquamarine' => '102,205,170',
'mediumblue' => '0,0,205',
'mediumorchid' => '186,85,211',
'mediumpurple' => '147,112,219',
'mediumseagreen' => '60,179,113',
'mediumslateblue' => '123,104,238',
'mediumspringgreen' => '0,250,154',
'mediumturquoise' => '72,209,204',
'mediumvioletred' => '199,21,133',
'midnightblue' => '25,25,112',
'mintcream' => '245,255,250',
'mistyrose' => '255,228,225',
'moccasin' => '255,228,181',
'navajowhite' => '255,222,173',
'navy' => '0,0,128',
'oldlace' => '253,245,230',
'olive' => '128,128,0',
'olivedrab' => '107,142,35',
'orange' => '255,165,0',
'orangered' => '255,69,0',
'orchid' => '218,112,214',
'palegoldenrod' => '238,232,170',
'palegreen' => '152,251,152',
'paleturquoise' => '175,238,238',
'palevioletred' => '219,112,147',
'papayawhip' => '255,239,213',
'peachpuff' => '255,218,185',
'peru' => '205,133,63',
'pink' => '255,192,203',
'plum' => '221,160,221',
'powderblue' => '176,224,230',
'purple' => '128,0,128',
'red' => '255,0,0',
'rosybrown' => '188,143,143',
'royalblue' => '65,105,225',
'saddlebrown' => '139,69,19',
'salmon' => '250,128,114',
'sandybrown' => '244,164,96',
'seagreen' => '46,139,87',
'seashell' => '255,245,238',
'sienna' => '160,82,45',
'silver' => '192,192,192',
'skyblue' => '135,206,235',
'slateblue' => '106,90,205',
'slategray' => '112,128,144',
'slategrey' => '112,128,144',
'snow' => '255,250,250',
'springgreen' => '0,255,127',
'steelblue' => '70,130,180',
'tan' => '210,180,140',
'teal' => '0,128,128',
'thistle' => '216,191,216',
'tomato' => '255,99,71',
'transparent' => '0,0,0,0',
'turquoise' => '64,224,208',
'violet' => '238,130,238',
'wheat' => '245,222,179',
'white' => '255,255,255',
'whitesmoke' => '245,245,245',
'yellow' => '255,255,0',
'yellowgreen' => '154,205,50'
);
}
PKQ��[|�U�����Css/Less/LessParser.phpnu�[���<?php
namespace Nextend\Framework\Asset\Css\Less;
use Exception;
use stdClass;
class LessParser {
static protected $nextBlockId = 0; // used to uniquely identify blocks
static protected $precedence = array(
'=<' => 0,
'>=' => 0,
'=' => 0,
'<' => 0,
'>' => 0,
'+' => 1,
'-' => 1,
'*' => 2,
'/' => 2,
'%' => 2,
);
static protected $whitePattern;
static protected $commentMulti;
static protected $commentSingle = "//";
static protected $commentMultiLeft = "/*";
static protected $commentMultiRight = "*/";
// regex string to match any of the operators
static protected $operatorString;
// these properties will supress division unless it's inside
parenthases
static protected $supressDivisionProps = array(
'/border-radius$/i',
'/^font$/i'
);
protected $blockDirectives = array(
"font-face",
"keyframes",
"page",
"-moz-document"
);
protected $lineDirectives = array("charset");
/**
* if we are in parens we can be more liberal with whitespace around
* operators because it must evaluate to a single value and thus is
less
* ambiguous.
*
* Consider:
* property1: 10 -5; // is two numbers, 10 and -5
* property2: (10 -5); // should evaluate to 5
*/
protected $inParens = false;
// caches preg escaped literals
static protected $literalCache = array();
public function __construct($lessc, $sourceName = null) {
$this->eatWhiteDefault = true;
// reference to less needed for vPrefix, mPrefix, and
parentSelector
$this->lessc = $lessc;
$this->sourceName = $sourceName; // name used for error messages
$this->writeComments = false;
if (!self::$operatorString) {
self::$operatorString = '(' . implode('|',
array_map(array(
LessCompiler::class,
'preg_quote'
), array_keys(self::$precedence))) . ')';
$commentSingle =
LessCompiler::preg_quote(self::$commentSingle);
$commentMultiLeft =
LessCompiler::preg_quote(self::$commentMultiLeft);
$commentMultiRight =
LessCompiler::preg_quote(self::$commentMultiRight);
self::$commentMulti = $commentMultiLeft . '.*?' .
$commentMultiRight;
self::$whitePattern = '/' . $commentSingle .
'[^\n]*\s*|(' . self::$commentMulti . ')\s*|\s+/Ais';
}
}
public function parse($buffer) {
$this->count = 0;
$this->line = 1;
$this->env = null; // block stack
$this->buffer = $this->writeComments ? $buffer :
$this->removeComments($buffer);
$this->pushSpecialBlock("root");
$this->eatWhiteDefault = true;
$this->seenComments = array();
// trim whitespace on head
// if (preg_match('/^\s+/', $this->buffer, $m)) {
// $this->line += substr_count($m[0], "\n");
// $this->buffer = ltrim($this->buffer);
// }
$this->whitespace();
// parse the entire file
$lastCount = $this->count;
while (false !== $this->parseChunk()) ;
if ($this->count != strlen($this->buffer))
$this->throwError();
// TODO report where the block was opened
if (!is_null($this->env->parent)) throw new
Exception('parse error: unclosed block');
return $this->env;
}
/**
* Parse a single chunk off the head of the buffer and append it to the
* current parse environment.
* Returns false when the buffer is empty, or when there is an error.
*
* This function is called repeatedly until the entire document is
* parsed.
*
* This parser is most similar to a recursive descent parser. Single
* functions represent discrete grammatical rules for the language, and
* they are able to capture the text that represents those rules.
*
* Consider the function lessc::keyword(). (all parse functions are
* structured the same)
*
* The function takes a single reference argument. When calling the
* function it will attempt to match a keyword on the head of the
buffer.
* If it is successful, it will place the keyword in the referenced
* argument, advance the position in the buffer, and return true. If it
* fails then it won't advance the buffer and it will return
false.
*
* All of these parse functions are powered by lessc::match(), which
behaves
* the same way, but takes a literal regular expression. Sometimes it
is
* more convenient to use match instead of creating a new function.
*
* Because of the format of the functions, to parse an entire string of
* grammatical rules, you can chain them together using &&.
*
* But, if some of the rules in the chain succeed before one fails,
then
* the buffer position will be left at an invalid state. In order to
* avoid this, lessc::seek() is used to remember and set buffer
positions.
*
* Before parsing a chain, use $s = $this->seek() to remember the
current
* position into $s. Then if a chain fails, use $this->seek($s) to
* go back where we started.
*/
protected function parseChunk() {
if (empty($this->buffer)) return false;
$s = $this->seek();
// setting a property
if ($this->keyword($key) && $this->assign()
&& $this->propertyValue($value, $key) &&
$this->end()) {
$this->append(array(
'assign',
$key,
$value
), $s);
return true;
} else {
$this->seek($s);
}
// look for special css blocks
if ($this->literal('@', false)) {
$this->count--;
// media
if ($this->literal('@media')) {
if (($this->mediaQueryList($mediaQueries) || true)
&& $this->literal('{')) {
$media =
$this->pushSpecialBlock("media");
$media->queries = is_null($mediaQueries) ? array() :
$mediaQueries;
return true;
} else {
$this->seek($s);
return false;
}
}
if ($this->literal("@", false) &&
$this->keyword($dirName)) {
if ($this->isDirective($dirName,
$this->blockDirectives)) {
if (($this->openString("{", $dirValue,
null, array(";")) || true) &&
$this->literal("{")) {
$dir =
$this->pushSpecialBlock("directive");
$dir->name = $dirName;
if (isset($dirValue)) $dir->value = $dirValue;
return true;
}
} elseif ($this->isDirective($dirName,
$this->lineDirectives)) {
if ($this->propertyValue($dirValue) &&
$this->end()) {
$this->append(array(
"directive",
$dirName,
$dirValue
));
return true;
}
}
}
$this->seek($s);
}
// setting a variable
if ($this->variable($var) && $this->assign()
&& $this->propertyValue($value) && $this->end()) {
$this->append(array(
'assign',
$var,
$value
), $s);
return true;
} else {
$this->seek($s);
}
if ($this->import($importValue)) {
$this->append($importValue, $s);
return true;
}
// opening parametric mixin
if ($this->tag($tag, true) &&
$this->argumentDef($args, $isVararg) &&
($this->guards($guards) || true) &&
$this->literal('{')) {
$block =
$this->pushBlock($this->fixTags(array($tag)));
$block->args = $args;
$block->isVararg = $isVararg;
if (!empty($guards)) $block->guards = $guards;
return true;
} else {
$this->seek($s);
}
// opening a simple block
if ($this->tags($tags) &&
$this->literal('{')) {
$tags = $this->fixTags($tags);
$this->pushBlock($tags);
return true;
} else {
$this->seek($s);
}
// closing a block
if ($this->literal('}', false)) {
try {
$block = $this->pop();
} catch (Exception $e) {
$this->seek($s);
$this->throwError($e->getMessage());
}
$hidden = false;
if (is_null($block->type)) {
$hidden = true;
if (!isset($block->args)) {
foreach ($block->tags as $tag) {
if (!is_string($tag) || $tag[0] !=
$this->lessc->mPrefix) {
$hidden = false;
break;
}
}
}
foreach ($block->tags as $tag) {
if (is_string($tag)) {
$this->env->children[$tag][] = $block;
}
}
}
if (!$hidden) {
$this->append(array(
'block',
$block
), $s);
}
// this is done here so comments aren't bundled into he
block that
// was just closed
$this->whitespace();
return true;
}
// mixin
if ($this->mixinTags($tags) &&
($this->argumentValues($argv) || true) &&
($this->keyword($suffix) || true) && $this->end()) {
$tags = $this->fixTags($tags);
$this->append(array(
'mixin',
$tags,
$argv,
$suffix
), $s);
return true;
} else {
$this->seek($s);
}
// spare ;
if ($this->literal(';')) return true;
return false; // got nothing, throw error
}
protected function isDirective($dirname, $directives) {
// TODO: cache pattern in parser
$pattern = implode("|", array_map(array(
LessCompiler::class,
"preg_quote"
), $directives));
$pattern = '/^(-[a-z-]+-)?(' . $pattern .
')$/i';
return preg_match($pattern, $dirname);
}
protected function fixTags($tags) {
// move @ tags out of variable namespace
foreach ($tags as &$tag) {
if ($tag[0] == $this->lessc->vPrefix) $tag[0] =
$this->lessc->mPrefix;
}
return $tags;
}
// a list of expressions
protected function expressionList(&$exps) {
$values = array();
while ($this->expression($exp)) {
$values[] = $exp;
}
if (count($values) == 0) return false;
$exps = LessCompiler::compressList($values, ' ');
return true;
}
/**
* Attempt to consume an expression.
*
* @link
http://en.wikipedia.org/wiki/Operator-precedence_parser#Pseudo-code
*/
protected function expression(&$out) {
if ($this->value($lhs)) {
$out = $this->expHelper($lhs, 0);
// look for / shorthand
if (!empty($this->env->supressedDivision)) {
unset($this->env->supressedDivision);
$s = $this->seek();
if ($this->literal("/") &&
$this->value($rhs)) {
$out = array(
"list",
"",
array(
$out,
array(
"keyword",
"/"
),
$rhs
)
);
} else {
$this->seek($s);
}
}
return true;
}
return false;
}
/**
* recursively parse infix equation with $lhs at precedence $minP
*/
protected function expHelper($lhs, $minP) {
$this->inExp = true;
$ss = $this->seek();
while (true) {
$whiteBefore = isset($this->buffer[$this->count - 1])
&& preg_match('/^\\s+$/',
$this->buffer[$this->count - 1]);
// If there is whitespace before the operator, then we require
// whitespace after the operator for it to be an expression
$needWhite = $whiteBefore && !$this->inParens;
if ($this->match(self::$operatorString . ($needWhite ?
'\s' : ''), $m) && self::$precedence[$m[1]]
>= $minP) {
if (!$this->inParens &&
isset($this->env->currentProperty) && $m[1] == "/"
&& empty($this->env->supressedDivision)) {
foreach (self::$supressDivisionProps as $pattern) {
if (preg_match($pattern,
$this->env->currentProperty)) {
$this->env->supressedDivision = true;
break 2;
}
}
}
$whiteAfter = isset($this->buffer[$this->count - 1])
&& preg_match('/^\\s+$/',
$this->buffer[$this->count - 1]);
if (!$this->value($rhs)) break;
// peek for next operator to see what to do with rhs
if ($this->peek(self::$operatorString, $next) &&
self::$precedence[$next[1]] > self::$precedence[$m[1]]) {
$rhs = $this->expHelper($rhs,
self::$precedence[$next[1]]);
}
$lhs = array(
'expression',
$m[1],
$lhs,
$rhs,
$whiteBefore,
$whiteAfter
);
$ss = $this->seek();
continue;
}
break;
}
$this->seek($ss);
return $lhs;
}
// consume a list of values for a property
public function propertyValue(&$value, $keyName = null) {
$values = array();
if ($keyName !== null) $this->env->currentProperty =
$keyName;
$s = null;
while ($this->expressionList($v)) {
$values[] = $v;
$s = $this->seek();
if (!$this->literal(',')) break;
}
if ($s) $this->seek($s);
if ($keyName !== null) unset($this->env->currentProperty);
if (count($values) == 0) return false;
$value = LessCompiler::compressList($values, ', ');
return true;
}
protected function parenValue(&$out) {
$s = $this->seek();
// speed shortcut
if (isset($this->buffer[$this->count]) &&
$this->buffer[$this->count] != "(") {
return false;
}
$inParens = $this->inParens;
if ($this->literal("(") && ($this->inParens
= true) && $this->expression($exp) &&
$this->literal(")")) {
$out = $exp;
$this->inParens = $inParens;
return true;
} else {
$this->inParens = $inParens;
$this->seek($s);
}
return false;
}
// a single value
protected function value(&$value) {
$s = $this->seek();
// speed shortcut
if (isset($this->buffer[$this->count]) &&
$this->buffer[$this->count] == "-") {
// negation
if ($this->literal("-", false) &&
(($this->variable($inner) && $inner = array(
"variable",
$inner
)) || $this->unit($inner) ||
$this->parenValue($inner))) {
$value = array(
"unary",
"-",
$inner
);
return true;
} else {
$this->seek($s);
}
}
if ($this->parenValue($value)) return true;
if ($this->unit($value)) return true;
if ($this->color($value)) return true;
if ($this->func($value)) return true;
if ($this->_string($value)) return true;
if ($this->keyword($word)) {
$value = array(
'keyword',
$word
);
return true;
}
// try a variable
if ($this->variable($var)) {
$value = array(
'variable',
$var
);
return true;
}
// unquote string (should this work on any type?
if ($this->literal("~") &&
$this->_string($str)) {
$value = array(
"escape",
$str
);
return true;
} else {
$this->seek($s);
}
// css hack: \0
if ($this->literal('\\') &&
$this->match('([0-9]+)', $m)) {
$value = array(
'keyword',
'\\' . $m[1]
);
return true;
} else {
$this->seek($s);
}
return false;
}
// an import statement
protected function import(&$out) {
$s = $this->seek();
if (!$this->literal('@import')) return false;
// @import "something.css" media;
// @import url("something.css") media;
// @import url(something.css) media;
if ($this->propertyValue($value)) {
$out = array(
"import",
$value
);
return true;
}
}
protected function mediaQueryList(&$out) {
if ($this->genericList($list, "mediaQuery",
",", false)) {
$out = $list[2];
return true;
}
return false;
}
protected function mediaQuery(&$out) {
$s = $this->seek();
$expressions = null;
$parts = array();
if (($this->literal("only") && ($only = true)
|| $this->literal("not") && ($not = true) || true)
&& $this->keyword($mediaType)) {
$prop = array("mediaType");
if (isset($only)) $prop[] = "only";
if (isset($not)) $prop[] = "not";
$prop[] = $mediaType;
$parts[] = $prop;
} else {
$this->seek($s);
}
if (!empty($mediaType) &&
!$this->literal("and")) {
// ~
} else {
$this->genericList($expressions,
"mediaExpression", "and", false);
if (is_array($expressions)) $parts = array_merge($parts,
$expressions[2]);
}
if (count($parts) == 0) {
$this->seek($s);
return false;
}
$out = $parts;
return true;
}
protected function mediaExpression(&$out) {
$s = $this->seek();
$value = null;
if ($this->literal("(") &&
$this->keyword($feature) && ($this->literal(":")
&& $this->expression($value) || true) &&
$this->literal(")")) {
$out = array(
"mediaExp",
$feature
);
if ($value) $out[] = $value;
return true;
} elseif ($this->variable($variable)) {
$out = array(
'variable',
$variable
);
return true;
}
$this->seek($s);
return false;
}
// an unbounded string stopped by $end
protected function openString($end, &$out, $nestingOpen = null,
$rejectStrs = null) {
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
$stop = array(
"'",
'"',
"@{",
$end
);
$stop = array_map(array(
LessCompiler::class,
"preg_quote"
), $stop);
// $stop[] = self::$commentMulti;
if (!is_null($rejectStrs)) {
$stop = array_merge($stop, $rejectStrs);
}
$patt = '(.*?)(' . implode("|", $stop) .
')';
$nestingLevel = 0;
$content = array();
while ($this->match($patt, $m, false)) {
if (!empty($m[1])) {
$content[] = $m[1];
if ($nestingOpen) {
$nestingLevel += substr_count($m[1], $nestingOpen);
}
}
$tok = $m[2];
$this->count -= strlen($tok);
if ($tok == $end) {
if ($nestingLevel == 0) {
break;
} else {
$nestingLevel--;
}
}
if (($tok == "'" || $tok == '"')
&& $this->_string($str)) {
$content[] = $str;
continue;
}
if ($tok == "@{" &&
$this->interpolation($inter)) {
$content[] = $inter;
continue;
}
if (!empty($rejectStrs) && in_array($tok, $rejectStrs))
{
$ount = null;
break;
}
$content[] = $tok;
$this->count += strlen($tok);
}
$this->eatWhiteDefault = $oldWhite;
if (count($content) == 0) return false;
// trim the end
if (is_string(end($content))) {
$content[count($content) - 1] = rtrim(end($content));
}
$out = array(
"string",
"",
$content
);
return true;
}
protected function _string(&$out) {
$s = $this->seek();
if ($this->literal('"', false)) {
$delim = '"';
} elseif ($this->literal("'", false)) {
$delim = "'";
} else {
return false;
}
$content = array();
// look for either ending delim , escape, or string interpolation
$patt = '([^\n]*?)(@\{|\\\\|' .
LessCompiler::preg_quote($delim) . ')';
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
while ($this->match($patt, $m, false)) {
$content[] = $m[1];
if ($m[2] == "@{") {
$this->count -= strlen($m[2]);
if ($this->interpolation($inter)) {
$content[] = $inter;
} else {
$this->count += strlen($m[2]);
$content[] = "@{"; // ignore it
}
} elseif ($m[2] == '\\') {
$content[] = $m[2];
if ($this->literal($delim, false)) {
$content[] = $delim;
}
} else {
$this->count -= strlen($delim);
break; // delim
}
}
$this->eatWhiteDefault = $oldWhite;
if ($this->literal($delim)) {
$out = array(
"string",
$delim,
$content
);
return true;
}
$this->seek($s);
return false;
}
protected function interpolation(&$out) {
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = true;
$s = $this->seek();
if ($this->literal("@{") &&
$this->openString("}", $interp, null, array(
"'",
'"',
";"
)) && $this->literal("}", false)) {
$out = array(
"interpolate",
$interp
);
$this->eatWhiteDefault = $oldWhite;
if ($this->eatWhiteDefault) $this->whitespace();
return true;
}
$this->eatWhiteDefault = $oldWhite;
$this->seek($s);
return false;
}
protected function unit(&$unit) {
// speed shortcut
if (isset($this->buffer[$this->count])) {
$char = $this->buffer[$this->count];
if (!preg_match('/^[0-9]+$/', $char) && $char
!= ".") return false;
}
if
($this->match('([0-9]+(?:\.[0-9]*)?|\.[0-9]+)([%a-zA-Z]+)?',
$m)) {
$unit = array(
"number",
$m[1],
empty($m[2]) ? "" : $m[2]
);
return true;
}
return false;
}
// a # color
protected function color(&$out) {
if
($this->match('(#(?:[0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{3}))',
$m)) {
if (strlen($m[1]) > 7) {
$out = array(
"string",
"",
array($m[1])
);
} else {
$out = array(
"raw_color",
$m[1]
);
}
return true;
}
return false;
}
// consume a list of property values delimited by ; and wrapped in ()
protected function argumentValues(&$args, $delim = ',') {
$s = $this->seek();
if (!$this->literal('(')) return false;
$values = array();
while (true) {
if ($this->expressionList($value)) $values[] = $value;
if (!$this->literal($delim)) break; else {
if ($value == null) $values[] = null;
$value = null;
}
}
if (!$this->literal(')')) {
$this->seek($s);
return false;
}
$args = $values;
return true;
}
// consume an argument definition list surrounded by ()
// each argument is a variable name with optional value
// or at the end a ... or a variable named followed by ...
protected function argumentDef(&$args, &$isVararg, $delim =
',') {
$s = $this->seek();
if (!$this->literal('(')) return false;
$values = array();
$isVararg = false;
while (true) {
if ($this->literal("...")) {
$isVararg = true;
break;
}
if ($this->variable($vname)) {
$arg = array(
"arg",
$vname
);
$ss = $this->seek();
if ($this->assign() &&
$this->expressionList($value)) {
$arg[] = $value;
} else {
$this->seek($ss);
if ($this->literal("...")) {
$arg[0] = "rest";
$isVararg = true;
}
}
$values[] = $arg;
if ($isVararg) break;
continue;
}
if ($this->value($literal)) {
$values[] = array(
"lit",
$literal
);
}
if (!$this->literal($delim)) break;
}
if (!$this->literal(')')) {
$this->seek($s);
return false;
}
$args = $values;
return true;
}
// consume a list of tags
// this accepts a hanging delimiter
protected function tags(&$tags, $simple = false, $delim =
',') {
$tags = array();
while ($this->tag($tt, $simple)) {
$tags[] = $tt;
if (!$this->literal($delim)) break;
}
if (count($tags) == 0) return false;
return true;
}
// list of tags of specifying mixin path
// optionally separated by > (lazy, accepts extra >)
protected function mixinTags(&$tags) {
$s = $this->seek();
$tags = array();
while ($this->tag($tt, true)) {
$tags[] = $tt;
$this->literal(">");
}
if (count($tags) == 0) return false;
return true;
}
// a bracketed value (contained within in a tag definition)
protected function tagBracket(&$value) {
// speed shortcut
if (isset($this->buffer[$this->count]) &&
$this->buffer[$this->count] != "[") {
return false;
}
$s = $this->seek();
if ($this->literal('[') &&
$this->to(']', $c, true) &&
$this->literal(']', false)) {
$value = '[' . $c . ']';
// whitespace?
if ($this->whitespace()) $value .= " ";
// escape parent selector, (yuck)
$value = str_replace($this->lessc->parentSelector,
"$&$", $value);
return true;
}
$this->seek($s);
return false;
}
protected function tagExpression(&$value) {
$s = $this->seek();
if ($this->literal("(") &&
$this->expression($exp) && $this->literal(")")) {
$value = array(
'exp',
$exp
);
return true;
}
$this->seek($s);
return false;
}
// a space separated list of selectors
protected function tag(&$tag, $simple = false) {
if ($simple) $chars = '^@,:;{}\][>\(\) "\'';
else
$chars = '^@,;{}["\'';
$s = $this->seek();
if (!$simple && $this->tagExpression($tag)) {
return true;
}
$hasExpression = false;
$parts = array();
while ($this->tagBracket($first)) $parts[] = $first;
$oldWhite = $this->eatWhiteDefault;
$this->eatWhiteDefault = false;
while (true) {
if ($this->match('([' . $chars . '0-9]['
. $chars . ']*)', $m)) {
$parts[] = $m[1];
if ($simple) break;
while ($this->tagBracket($brack)) {
$parts[] = $brack;
}
continue;
}
if (isset($this->buffer[$this->count]) &&
$this->buffer[$this->count] == "@") {
if ($this->interpolation($interp)) {
$hasExpression = true;
$interp[2] = true; // don't unescape
$parts[] = $interp;
continue;
}
if ($this->literal("@")) {
$parts[] = "@";
continue;
}
}
if ($this->unit($unit)) { // for keyframes
$parts[] = $unit[1];
$parts[] = $unit[2];
continue;
}
break;
}
$this->eatWhiteDefault = $oldWhite;
if (!$parts) {
$this->seek($s);
return false;
}
if ($hasExpression) {
$tag = array(
"exp",
array(
"string",
"",
$parts
)
);
} else {
$tag = trim(implode($parts));
}
$this->whitespace();
return true;
}
// a css function
protected function func(&$func) {
$s = $this->seek();
if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m)
&& $this->literal('(')) {
$fname = $m[1];
$sPreArgs = $this->seek();
$args = array();
while (true) {
$ss = $this->seek();
// this ugly nonsense is for ie filter properties
if ($this->keyword($name) &&
$this->literal('=') &&
$this->expressionList($value)) {
$args[] = array(
"string",
"",
array(
$name,
"=",
$value
)
);
} else {
$this->seek($ss);
if ($this->expressionList($value)) {
$args[] = $value;
}
}
if (!$this->literal(',')) break;
}
$args = array(
'list',
',',
$args
);
if ($this->literal(')')) {
$func = array(
'function',
$fname,
$args
);
return true;
} elseif ($fname == 'url') {
// couldn't parse and in url? treat as string
$this->seek($sPreArgs);
if ($this->openString(")", $string) &&
$this->literal(")")) {
$func = array(
'function',
$fname,
$string
);
return true;
}
}
}
$this->seek($s);
return false;
}
// consume a less variable
protected function variable(&$name) {
$s = $this->seek();
if ($this->literal($this->lessc->vPrefix, false)
&& ($this->variable($sub) || $this->keyword($name))) {
if (!empty($sub)) {
$name = array(
'variable',
$sub
);
} else {
$name = $this->lessc->vPrefix . $name;
}
return true;
}
$name = null;
$this->seek($s);
return false;
}
/**
* Consume an assignment operator
* Can optionally take a name that will be set to the current property
name
*/
protected function assign($name = null) {
if ($name) $this->currentProperty = $name;
return $this->literal(':') ||
$this->literal('=');
}
// consume a keyword
protected function keyword(&$word) {
if ($this->match('([\w_\-\*!"][\w\-_"]*)',
$m)) {
$word = $m[1];
return true;
}
return false;
}
// consume an end of statement delimiter
protected function end() {
if ($this->literal(';')) {
return true;
} elseif ($this->count == strlen($this->buffer) ||
$this->buffer[$this->count] == '}') {
// if there is end of file or a closing block next then we
don't need a ;
return true;
}
return false;
}
protected function guards(&$guards) {
$s = $this->seek();
if (!$this->literal("when")) {
$this->seek($s);
return false;
}
$guards = array();
while ($this->guardGroup($g)) {
$guards[] = $g;
if (!$this->literal(",")) break;
}
if (count($guards) == 0) {
$guards = null;
$this->seek($s);
return false;
}
return true;
}
// a bunch of guards that are and'd together
// TODO rename to guardGroup
protected function guardGroup(&$guardGroup) {
$s = $this->seek();
$guardGroup = array();
while ($this->guard($guard)) {
$guardGroup[] = $guard;
if (!$this->literal("and")) break;
}
if (count($guardGroup) == 0) {
$guardGroup = null;
$this->seek($s);
return false;
}
return true;
}
protected function guard(&$guard) {
$s = $this->seek();
$negate = $this->literal("not");
if ($this->literal("(") &&
$this->expression($exp) && $this->literal(")")) {
$guard = $exp;
if ($negate) $guard = array(
"negate",
$guard
);
return true;
}
$this->seek($s);
return false;
}
/* raw parsing functions */
protected function literal($what, $eatWhitespace = null) {
if ($eatWhitespace === null) $eatWhitespace =
$this->eatWhiteDefault;
// shortcut on single letter
if (!isset($what[1]) &&
isset($this->buffer[$this->count])) {
if ($this->buffer[$this->count] == $what) {
if (!$eatWhitespace) {
$this->count++;
return true;
}
// goes below...
} else {
return false;
}
}
if (!isset(self::$literalCache[$what])) {
self::$literalCache[$what] = LessCompiler::preg_quote($what);
}
return $this->match(self::$literalCache[$what], $m,
$eatWhitespace);
}
protected function genericList(&$out, $parseItem, $delim =
"", $flatten = true) {
$s = $this->seek();
$items = array();
while ($this->$parseItem($value)) {
$items[] = $value;
if ($delim) {
if (!$this->literal($delim)) break;
}
}
if (count($items) == 0) {
$this->seek($s);
return false;
}
if ($flatten && count($items) == 1) {
$out = $items[0];
} else {
$out = array(
"list",
$delim,
$items
);
}
return true;
}
// advance counter to next occurrence of $what
// $until - don't include $what in advance
// $allowNewline, if string, will be used as valid char set
protected function to($what, &$out, $until = false, $allowNewline =
false) {
if (is_string($allowNewline)) {
$validChars = $allowNewline;
} else {
$validChars = $allowNewline ? "." :
"[^\n]";
}
if (!$this->match('(' . $validChars . '*?)'
. LessCompiler::preg_quote($what), $m, !$until)) return false;
if ($until) $this->count -= strlen($what); // give back $what
$out = $m[1];
return true;
}
// try to match something on head of buffer
protected function match($regex, &$out, $eatWhitespace = null) {
if ($eatWhitespace === null) $eatWhitespace =
$this->eatWhiteDefault;
$r = '/' . $regex . ($eatWhitespace &&
!$this->writeComments ? '\s*' : '') .
'/Ais';
if (preg_match($r, $this->buffer, $out, null, $this->count))
{
$this->count += strlen($out[0]);
if ($eatWhitespace && $this->writeComments)
$this->whitespace();
return true;
}
return false;
}
// match some whitespace
protected function whitespace() {
if ($this->writeComments) {
$gotWhite = false;
while (preg_match(self::$whitePattern, $this->buffer, $m,
null, $this->count)) {
if (isset($m[1]) &&
empty($this->commentsSeen[$this->count])) {
$this->append(array(
"comment",
$m[1]
));
$this->commentsSeen[$this->count] = true;
}
$this->count += strlen($m[0]);
$gotWhite = true;
}
return $gotWhite;
} else {
$this->match("", $m);
return strlen($m[0]) > 0;
}
}
// match something without consuming it
protected function peek($regex, &$out = null, $from = null) {
if (is_null($from)) $from = $this->count;
$r = '/' . $regex . '/Ais';
$result = preg_match($r, $this->buffer, $out, null, $from);
return $result;
}
// seek to a spot in the buffer or return where we are on no argument
protected function seek($where = null) {
if ($where === null) return $this->count; else $this->count =
$where;
return true;
}
/* misc functions */
public function throwError($msg = "parse error", $count =
null) {
$count = is_null($count) ? $this->count : $count;
$line = $this->line + substr_count(substr($this->buffer, 0,
$count), "\n");
if (!empty($this->sourceName)) {
$loc = "$this->sourceName on line $line";
} else {
$loc = "line: $line";
}
// TODO this depends on $this->count
if ($this->peek("(.*?)(\n|$)", $m, $count)) {
throw new Exception("$msg: failed at `$m[1]`
$loc<br>FILE:
<strong>{$this->lessc->sourceParser->sourceName}</strong>");
} else {
throw new Exception("$msg: $loc<br>FILE:
<strong>{$this->lessc->sourceParser->sourceName}</strong>");
}
}
protected function pushBlock($selectors = null, $type = null) {
$b = new stdclass;
$b->parent = $this->env;
$b->type = $type;
$b->id = self::$nextBlockId++;
$b->isVararg = false; // TODO: kill me from here
$b->tags = $selectors;
$b->props = array();
$b->children = array();
$this->env = $b;
return $b;
}
// push a block that doesn't multiply tags
protected function pushSpecialBlock($type) {
return $this->pushBlock(null, $type);
}
// append a property to the current block
protected function append($prop, $pos = null) {
if ($pos !== null) $prop[-1] = $pos;
$this->env->props[] = $prop;
}
// pop something off the stack
protected function pop() {
$old = $this->env;
$this->env = $this->env->parent;
return $old;
}
// remove comments from $text
// todo: make it work for all functions, not just url
protected function removeComments($text) {
$look = array(
'url(',
'//',
'/*',
'"',
"'"
);
$out = '';
$min = null;
while (true) {
// find the next item
foreach ($look as $token) {
$pos = strpos($text, $token);
if ($pos !== false) {
if (!isset($min) || $pos < $min[1]) $min = array(
$token,
$pos
);
}
}
if (is_null($min)) break;
$count = $min[1];
$skip = 0;
$newlines = 0;
switch ($min[0]) {
case 'url(':
if (preg_match('/url\(.*?\)/', $text, $m, 0,
$count)) $count += strlen($m[0]) - strlen($min[0]);
break;
case '"':
case "'":
if (preg_match('/' . $min[0] .
'.*?' . $min[0] . '/', $text, $m, 0, $count)) $count +=
strlen($m[0]) - 1;
break;
case '//':
$skip = strpos($text, "\n", $count);
if ($skip === false) $skip = strlen($text) - $count;
else $skip -= $count;
break;
case '/*':
if (preg_match('/\/\*.*?\*\//s', $text, $m,
0, $count)) {
$skip = strlen($m[0]);
$newlines = substr_count($m[0], "\n");
}
break;
}
if ($skip == 0) $count += strlen($min[0]);
$out .= substr($text, 0, $count) . str_repeat("\n",
$newlines);
$text = substr($text, $count + $skip);
$min = null;
}
return $out . $text;
}
}PKQ��[�nN�ffFonts/Google/Asset.phpnu�[���<?php
namespace Nextend\Framework\Asset\Fonts\Google;
use Nextend\Framework\Asset\AbstractAsset;
use Nextend\Framework\Asset\Css\Css;
use Nextend\Framework\Url\UrlHelper;
class Asset extends AbstractAsset {
public function getLoadedFamilies() {
return array_keys($this->files);
}
function addSubset($subset = 'latin') {
if (!in_array($subset, $this->inline)) {
$this->inline[] = $subset;
}
}
function addFont($family, $style = '400') {
$style = (string)$style;
if (!isset($this->files[$family])) {
$this->files[$family] = array();
}
if (!in_array($style, $this->files[$family])) {
$this->files[$family][] = $style;
}
}
public function loadFonts() {
if (!empty($this->files)) {
//https://fonts.googleapis.com/css?display=swap&family=Montserrat:400%7CRoboto:100italic,300,400&subset=latin,greek-ext
$families = array();
foreach ($this->files as $name => $styles) {
if (count($styles) && !in_array($name,
Google::$excludedFamilies)) {
$families[] = $name . ':' .
implode(',', $styles);
}
}
if (count($families)) {
$params = array(
'display' => 'swap',
'family' => implode('|',
$families),
'subset' => implode(',',
$this->inline)
);
Css::addUrl(UrlHelper::add_query_arg($params,
'https://fonts.googleapis.com/css'));
}
}
return true;
}
}PKQ��[k)A��Fonts/Google/Google.phpnu�[���<?php
namespace Nextend\Framework\Asset\Fonts\Google;
use Nextend\Framework\Asset\AssetManager;
class Google {
public static $enabled = false;
public static $excludedFamilies = array();
public static function addSubset($subset = 'latin') {
AssetManager::$googleFonts->addSubset($subset);
}
public static function addFont($family, $style = '400') {
AssetManager::$googleFonts->addFont($family, $style);
}
public static function addFontExclude($family) {
self::$excludedFamilies[] = $family;
}
public static function build() {
if (self::$enabled) {
AssetManager::$googleFonts->loadFonts();
}
}
}PKQ��[� F��Image/Asset.phpnu�[���<?php
namespace Nextend\Framework\Asset\Image;
class Asset {
protected $images = array();
public function add($images) {
if (!is_array($images)) {
$images = array($images);
}
$this->images = array_unique(array_merge($this->images,
$images));
}
public function get() {
return $this->images;
}
public function match($url) {
return in_array($url, $this->images);
}
public function serialize() {
return array(
'images' => $this->images
);
}
public function unSerialize($array) {
if (!empty($array['images'])) {
$this->add($array['images']);
}
}
}PKQ��[�D XBB Js/Asset.phpnu�[���<?php
namespace Nextend\Framework\Asset\Js;
use Nextend\Framework\Asset\AbstractAsset;
use Nextend\Framework\Localization\Localization;
use Nextend\Framework\Platform\Platform;
use Nextend\Framework\Plugin;
use Nextend\Framework\Settings;
use Nextend\Framework\Url\Url;
use Nextend\Framework\View\Html;
use Nextend\SmartSlider3\SmartSlider3Info;
class Asset extends AbstractAsset {
public function __construct() {
$this->cache = new Cache();
}
public function getOutput() {
$output = "";
$needProtocol = !Settings::get('protocol-relative',
'1');
$globalInline = $this->getGlobalInlineScripts();
if (!empty($globalInline)) {
$output .= Html::script(self::minify_js($globalInline .
"\n"));
}
$async = !Platform::isAdmin();
$scriptAttributes = array();
if ($async) {
$scriptAttributes['defer'] = 1;
$scriptAttributes['async'] = 1;
}
foreach ($this->urls as $url) {
$output .= Html::scriptFile($this->filterSrc($url),
$scriptAttributes) . "\n";
}
foreach ($this->getFiles() as $file) {
if (substr($file, 0, 2) == '//') {
$output .= Html::scriptFile($this->filterSrc($file),
$scriptAttributes) . "\n";
} else {
$output .=
Html::scriptFile($this->filterSrc(Url::pathToUri($file, $needProtocol) .
'?ver=' . SmartSlider3Info::$revisionShort), $scriptAttributes) .
"\n";
}
}
$output .= Html::script(self::minify_js(Localization::toJS() .
"\n" . $this->getInlineScripts() . "\n"));
return $output;
}
private function filterSrc($src) {
return Plugin::applyFilters('n2_script_loader_src',
$src);
}
public function get() {
return array(
'url' => $this->urls,
'files' => $this->getFiles(),
'inline' => $this->getInlineScripts(),
'globalInline' =>
$this->getGlobalInlineScripts()
);
}
public function getAjaxOutput() {
$output = $this->getInlineScripts();
return $output;
}
private function getGlobalInlineScripts() {
return implode('', $this->globalInline);
}
private function getInlineScripts() {
$scripts = '';
foreach ($this->firstCodes as $script) {
$scripts .= $script . "\n";
}
foreach ($this->inline as $script) {
$scripts .= $script . "\n";
}
return $this->serveJquery($scripts);
}
public static function serveJquery($script) {
if (empty($script)) {
return "";
}
$inline = "_N2.r('documentReady',
function(){\n";
$inline .= $script;
$inline .= "});\n";
return $inline;
}
public static function minify_js($input) {
if (trim($input) === "") return $input;
return preg_replace(array(
// Remove comment(s)
'#\s*("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\')\s*|\s*\/\*(?!\!|@cc_on)(?>[\s\S]*?\*\/)\s*|\s*(?<![\:\=])\/\/.*(?=[\n\r]|$)|^\s*|\s*$#',
// Remove white-space(s) outside the string and regex
'#("(?:[^"\\\]++|\\\.)*+"|\'(?:[^\'\\\\]++|\\\.)*+\'|\/\*(?>.*?\*\/)|\/(?!\/)[^\n\r]*?\/(?=[\s.,;]|[gimuy]|$))|\s*([!%&*\(\)\-=+\[\]\{\}|;:,.<>?\/])\s*#s',
// Remove the last semicolon
'#;+\}#',
// Minify object attribute(s) except JSON attribute(s). From
`{'foo':'bar'}` to `{foo:'bar'}`
'#([\{,])([\'])(\d+|[a-z_][a-z0-9_]*)\2(?=\:)#i',
// --ibid. From `foo['bar']` to `foo.bar`
'#([a-z0-9_\)\]])\[([\'"])([a-z_][a-z0-9_]*)\2\]#i'
), array(
'$1',
'$1$2',
'}',
'$1$3',
'$1.$3'
), $input);
}
}PKQ��[�[�:pp Js/Cache.phpnu�[���<?php
namespace Nextend\Framework\Asset\Js;
use Nextend\Framework\Asset\AbstractCache;
use Nextend\Framework\Cache\Manifest;
class Cache extends AbstractCache {
public $outputFileType = "js";
/**
* @param Manifest $cache
*
* @return string
*/
public function getCachedContent($cache) {
$content =
'(function(){this._N2=this._N2||{_r:[],_d:[],r:function(){this._r.push(arguments)},d:function(){this._d.push(arguments)}}}).call(window);';
$content .= parent::getCachedContent($cache);
$content .= "_N2.d('" . $this->group .
"');";
return $content;
}
}PKQ��[�ʕ!! Js/Js.phpnu�[���<?php
namespace Nextend\Framework\Asset\Js;
use Nextend\Framework\Asset\AssetManager;
use Nextend\Framework\Filesystem\Filesystem;
use Nextend\Framework\Platform\Platform;
use Nextend\Framework\Settings;
use Nextend\SmartSlider3\Application\Frontend\ApplicationTypeFrontend;
class Js {
public static function addFile($pathToFile, $group) {
AssetManager::$js->addFile($pathToFile, $group);
}
public static function addFiles($path, $files, $group) {
AssetManager::$js->addFiles($path, $files, $group);
}
public static function addStaticGroup($file, $group) {
AssetManager::$js->addStaticGroup($file, $group);
}
public static function addCode($code, $group) {
AssetManager::$js->addCode($code, $group);
}
public static function addUrl($url) {
AssetManager::$js->addUrl($url);
}
public static function addFirstCode($code, $unshift = false) {
AssetManager::$js->addFirstCode($code, $unshift);
}
public static function addInline($code, $unshift = false) {
AssetManager::$js->addInline($code, null, $unshift);
}
public static function addGlobalInline($code, $unshift = false) {
AssetManager::$js->addGlobalInline($code, $unshift);
}
public static function addInlineFile($path, $unshift = false) {
static $loaded = array();
if (!isset($loaded[$path])) {
AssetManager::$js->addInline(Filesystem::readFile($path),
null, $unshift);
$loaded[$path] = 1;
}
}
public static function addGlobalInlineFile($path, $unshift = false) {
static $loaded = array();
if (!isset($loaded[$path])) {
AssetManager::$js->addGlobalInline(Filesystem::readFile($path),
$unshift);
$loaded[$path] = 1;
}
}
}PKQ��[>�i���Predefined.phpnu�[���<?php
namespace Nextend\Framework\Asset;
use Nextend\Framework\Asset\Css\Css;
use Nextend\Framework\Asset\Fonts\Google\Google;
use Nextend\Framework\Asset\Js\Js;
use Nextend\Framework\Font\FontSources;
use Nextend\Framework\Form\Form;
use Nextend\Framework\Platform\Platform;
use Nextend\Framework\Plugin;
use Nextend\Framework\ResourceTranslator\ResourceTranslator;
use Nextend\SmartSlider3\Application\Frontend\ApplicationTypeFrontend;
use Nextend\SmartSlider3\Settings;
class Predefined {
public static function backend($force = false) {
static $once;
if ($once != null && !$force) {
return;
}
$once = true;
\JHtml::_('jquery.framework');
$jQueryFallback =
'https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js';
Js::addGlobalInline('_N2._jQueryFallback=\'' .
$jQueryFallback . '\';');
$family = n2_x('Montserrat', 'Default Google font
family for admin');
foreach (explode(',', n2_x('latin',
'Default Google font charset for admin')) as $subset) {
Google::addSubset($subset);
}
Google::addFont($family);
Js::addFirstCode("_N2.r(['AjaxHelper'],function(){_N2.AjaxHelper.addAjaxArray("
. json_encode(Form::tokenizeUrl()) . ");});");
Plugin::addAction('afterApplicationContent', array(
FontSources::class,
'onFontManagerLoadBackend'
));
}
public static function frontend($force = false) {
static $once;
if ($once != null && !$force) {
return;
}
$once = true;
AssetManager::getInstance();
if (Platform::isAdmin()) {
Js::addGlobalInline('window.N2GSAP=' . N2GSAP .
';');
Js::addGlobalInline('window.N2PLATFORM="' .
Platform::getName() . '";');
}
Js::addGlobalInline('(function(){this._N2=this._N2||{_r:[],_d:[],r:function(){this._r.push(arguments)},d:function(){this._d.push(arguments)}}}).call(window);');
/**
* WebP browser support detection
*/
/*
!function (ua, match, version, r) {
match = ua.match(/(Chrome|Firefox|Safari)\/(\d+)\./);
if (match) {
if ("Chrome" == match[1]) {
r = +match[2] >= 32;
} else if ("Firefox" == match[1]) {
r = +match[2] >= 65;
} else if ("Safari" == match[1]) {
version = ua.match(/Version\/(\d+)/) ||
ua.match(/(\d+)[0-9_ ]+ like Mac/);
if (version) {
r = +version[1] >= 14;
}
}
if (r) {
document.documentElement.classList.add("n2webp")
}
}
}(navigator.userAgent);
*/
Js::addGlobalInline('!function(e,i,o,r){(i=e.match(/(Chrome|Firefox|Safari)\/(\d+)\./))&&("Chrome"==i[1]?r=+i[2]>=32:"Firefox"==i[1]?r=+i[2]>=65:"Safari"==i[1]&&(o=e.match(/Version\/(\d+)/)||e.match(/(\d+)[0-9_
]+ like
Mac/))&&(r=+o[1]>=14),r&&document.documentElement.classList.add("n2webp"))}(navigator.userAgent);');
Js::addStaticGroup(ApplicationTypeFrontend::getAssetsPath() .
"/dist/n2.min.js", 'n2');
FontSources::onFontManagerLoad($force);
}
public static function loadLiteBox() {
Css::addStaticGroup(ResourceTranslator::toPath('$ss3-pro-frontend$/dist/litebox.min.css'),
'litebox');
Js::addStaticGroup(ResourceTranslator::toPath('$ss3-pro-frontend$/dist/litebox.min.js'),
'litebox');
Js::addInline('n2const.lightboxMobileNewTab=' .
intval(Settings::get('lightbox-mobile-new-tab', 1)) .
';');
}
}
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3Css/Asset.phpnu�[���PKQ��[��FF
E?Css/Cache.phpnu�[���PKQ��[�� �� �ECss/Css.phpnu�[���PKQ��[ (K;;�ICss/Less/Asset.phpnu�[���PKQ��[!��:��ILCss/Less/Cache.phpnu�[���PKQ��[>���G
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eRCss/Less/Formatter/Classic.phpnu�[���PKQ��[�39Edd!�\Css/Less/Formatter/Compressed.phpnu�[���PKQ��[rf���� �^Css/Less/Formatter/Debug.phpnu�[���PKQ��[��m$���_Css/Less/Less.phpnu�[���PKQ��[ѥ�"���cCss/Less/LessCompiler.phpnu�[���PKQ��[|�U������wCss/Less/LessParser.phpnu�[���PKQ��[�nN�ff�!Fonts/Google/Asset.phpnu�[���PKQ��[k)A���(Fonts/Google/Google.phpnu�[���PKQ��[� F���+Image/Asset.phpnu�[���PKQ��[�D XBB �.Js/Asset.phpnu�[���PKQ��[�[�:pp �=Js/Cache.phpnu�[���PKQ��[�ʕ!! �@Js/Js.phpnu�[���PKQ��[>�i���HPredefined.phpnu�[���PK��V