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-rw-r--r--lib/less.php/Parser.php2816
1 files changed, 0 insertions, 2816 deletions
diff --git a/lib/less.php/Parser.php b/lib/less.php/Parser.php
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index 2c9d879..0000000
--- a/lib/less.php/Parser.php
+++ /dev/null
@@ -1,2816 +0,0 @@
-<?php
-
-require_once( dirname(__FILE__).'/Cache.php');
-
-/**
- * Class for parsing and compiling less files into css
- *
- * @package Less
- * @subpackage parser
- *
- */
-class Less_Parser{
-
-
- /**
- * Default parser options
- */
- public static $default_options = array(
- 'compress' => false, // option - whether to compress
- 'strictUnits' => false, // whether units need to evaluate correctly
- 'strictMath' => false, // whether math has to be within parenthesis
- 'relativeUrls' => true, // option - whether to adjust URL's to be relative
- 'urlArgs' => '', // whether to add args into url tokens
- 'numPrecision' => 8,
-
- 'import_dirs' => array(),
- 'import_callback' => null,
- 'cache_dir' => null,
- 'cache_method' => 'php', // false, 'serialize', 'php', 'var_export', 'callback';
- 'cache_callback_get' => null,
- 'cache_callback_set' => null,
-
- 'sourceMap' => false, // whether to output a source map
- 'sourceMapBasepath' => null,
- 'sourceMapWriteTo' => null,
- 'sourceMapURL' => null,
-
- 'indentation' => ' ',
-
- 'plugins' => array(),
-
- );
-
- public static $options = array();
-
-
- private $input; // Less input string
- private $input_len; // input string length
- private $pos; // current index in `input`
- private $saveStack = array(); // holds state for backtracking
- private $furthest;
- private $mb_internal_encoding = ''; // for remember exists value of mbstring.internal_encoding
-
- /**
- * @var Less_Environment
- */
- private $env;
-
- protected $rules = array();
-
- private static $imports = array();
-
- public static $has_extends = false;
-
- public static $next_id = 0;
-
- /**
- * Filename to contents of all parsed the files
- *
- * @var array
- */
- public static $contentsMap = array();
-
-
- /**
- * @param Less_Environment|array|null $env
- */
- public function __construct( $env = null ){
-
- // Top parser on an import tree must be sure there is one "env"
- // which will then be passed around by reference.
- if( $env instanceof Less_Environment ){
- $this->env = $env;
- }else{
- $this->SetOptions(Less_Parser::$default_options);
- $this->Reset( $env );
- }
-
- // mbstring.func_overload > 1 bugfix
- // The encoding value must be set for each source file,
- // therefore, to conserve resources and improve the speed of this design is taken here
- if (ini_get('mbstring.func_overload')) {
- $this->mb_internal_encoding = ini_get('mbstring.internal_encoding');
- @ini_set('mbstring.internal_encoding', 'ascii');
- }
-
- }
-
-
- /**
- * Reset the parser state completely
- *
- */
- public function Reset( $options = null ){
- $this->rules = array();
- self::$imports = array();
- self::$has_extends = false;
- self::$imports = array();
- self::$contentsMap = array();
-
- $this->env = new Less_Environment($options);
-
- //set new options
- if( is_array($options) ){
- $this->SetOptions(Less_Parser::$default_options);
- $this->SetOptions($options);
- }
-
- $this->env->Init();
- }
-
- /**
- * Set one or more compiler options
- * options: import_dirs, cache_dir, cache_method
- *
- */
- public function SetOptions( $options ){
- foreach($options as $option => $value){
- $this->SetOption($option,$value);
- }
- }
-
- /**
- * Set one compiler option
- *
- */
- public function SetOption($option,$value){
-
- switch($option){
-
- case 'import_dirs':
- $this->SetImportDirs($value);
- return;
-
- case 'cache_dir':
- if( is_string($value) ){
- Less_Cache::SetCacheDir($value);
- Less_Cache::CheckCacheDir();
- }
- return;
- }
-
- Less_Parser::$options[$option] = $value;
- }
-
- /**
- * Registers a new custom function
- *
- * @param string $name function name
- * @param callable $callback callback
- */
- public function registerFunction($name, $callback) {
- $this->env->functions[$name] = $callback;
- }
-
- /**
- * Removed an already registered function
- *
- * @param string $name function name
- */
- public function unregisterFunction($name) {
- if( isset($this->env->functions[$name]) )
- unset($this->env->functions[$name]);
- }
-
-
- /**
- * Get the current css buffer
- *
- * @return string
- */
- public function getCss(){
-
- $precision = ini_get('precision');
- @ini_set('precision',16);
- $locale = setlocale(LC_NUMERIC, 0);
- setlocale(LC_NUMERIC, "C");
-
- try {
-
- $root = new Less_Tree_Ruleset(array(), $this->rules );
- $root->root = true;
- $root->firstRoot = true;
-
-
- $this->PreVisitors($root);
-
- self::$has_extends = false;
- $evaldRoot = $root->compile($this->env);
-
-
-
- $this->PostVisitors($evaldRoot);
-
- if( Less_Parser::$options['sourceMap'] ){
- $generator = new Less_SourceMap_Generator($evaldRoot, Less_Parser::$contentsMap, Less_Parser::$options );
- // will also save file
- // FIXME: should happen somewhere else?
- $css = $generator->generateCSS();
- }else{
- $css = $evaldRoot->toCSS();
- }
-
- if( Less_Parser::$options['compress'] ){
- $css = preg_replace('/(^(\s)+)|((\s)+$)/', '', $css);
- }
-
- } catch (Exception $exc) {
- // Intentional fall-through so we can reset environment
- }
-
- //reset php settings
- @ini_set('precision',$precision);
- setlocale(LC_NUMERIC, $locale);
-
- // If you previously defined $this->mb_internal_encoding
- // is required to return the encoding as it was before
- if ($this->mb_internal_encoding != '') {
- @ini_set("mbstring.internal_encoding", $this->mb_internal_encoding);
- $this->mb_internal_encoding = '';
- }
-
- // Rethrow exception after we handled resetting the environment
- if (!empty($exc)) {
- throw $exc;
- }
-
- return $css;
- }
-
- public function findValueOf($varName)
- {
- foreach($this->rules as $rule){
- if(isset($rule->variable) && ($rule->variable == true) && (str_replace("@","",$rule->name) == $varName)){
- return $this->getVariableValue($rule);
- }
- }
- return null;
- }
-
- /**
- *
- * this function gets the private rules variable and returns an array of the found variables
- * it uses a helper method getVariableValue() that contains the logic ot fetch the value from the rule object
- *
- * @return array
- */
- public function getVariables()
- {
- $variables = array();
-
- $not_variable_type = array(
- 'Comment', // this include less comments ( // ) and css comments (/* */)
- 'Import', // do not search variables in included files @import
- 'Ruleset', // selectors (.someclass, #someid, …)
- 'Operation', //
- );
-
- // @TODO run compilation if not runned yet
- foreach ($this->rules as $key => $rule) {
- if (in_array($rule->type, $not_variable_type)) {
- continue;
- }
-
- // Note: it seems rule->type is always Rule when variable = true
- if ($rule->type == 'Rule' && $rule->variable) {
- $variables[$rule->name] = $this->getVariableValue($rule);
- } else {
- if ($rule->type == 'Comment') {
- $variables[] = $this->getVariableValue($rule);
- }
- }
- }
- return $variables;
- }
-
- public function findVarByName($var_name)
- {
- foreach($this->rules as $rule){
- if(isset($rule->variable) && ($rule->variable == true)){
- if($rule->name == $var_name){
- return $this->getVariableValue($rule);
- }
- }
- }
- return null;
- }
-
- /**
- *
- * This method gets the value of the less variable from the rules object.
- * Since the objects vary here we add the logic for extracting the css/less value.
- *
- * @param $var
- *
- * @return bool|string
- */
- private function getVariableValue($var)
- {
- if (!is_a($var, 'Less_Tree')) {
- throw new Exception('var is not a Less_Tree object');
- }
-
- switch ($var->type) {
- case 'Color':
- return $this->rgb2html($var->rgb);
- case 'Unit':
- return $var->value. $var->unit->numerator[0];
- case 'Variable':
- return $this->findVarByName($var->name);
- case 'Keyword':
- return $var->value;
- case 'Rule':
- return $this->getVariableValue($var->value);
- case 'Value':
- $value = '';
- foreach ($var->value as $sub_value) {
- $value .= $this->getVariableValue($sub_value).' ';
- }
- return $value;
- case 'Quoted':
- return $var->quote.$var->value.$var->quote;
- case 'Dimension':
- $value = $var->value;
- if ($var->unit && $var->unit->numerator) {
- $value .= $var->unit->numerator[0];
- }
- return $value;
- case 'Expression':
- $value = "";
- foreach($var->value as $item) {
- $value .= $this->getVariableValue($item)." ";
- }
- return $value;
- case 'Operation':
- throw new Exception('getVariables() require Less to be compiled. please use $parser->getCss() before calling getVariables()');
- case 'Comment':
- case 'Import':
- case 'Ruleset':
- default:
- throw new Exception("type missing in switch/case getVariableValue for ".$var->type);
- }
- return false;
- }
-
- private function rgb2html($r, $g=-1, $b=-1)
- {
- if (is_array($r) && sizeof($r) == 3)
- list($r, $g, $b) = $r;
-
- $r = intval($r); $g = intval($g);
- $b = intval($b);
-
- $r = dechex($r<0?0:($r>255?255:$r));
- $g = dechex($g<0?0:($g>255?255:$g));
- $b = dechex($b<0?0:($b>255?255:$b));
-
- $color = (strlen($r) < 2?'0':'').$r;
- $color .= (strlen($g) < 2?'0':'').$g;
- $color .= (strlen($b) < 2?'0':'').$b;
- return '#'.$color;
- }
-
- /**
- * Run pre-compile visitors
- *
- */
- private function PreVisitors($root){
-
- if( Less_Parser::$options['plugins'] ){
- foreach(Less_Parser::$options['plugins'] as $plugin){
- if( !empty($plugin->isPreEvalVisitor) ){
- $plugin->run($root);
- }
- }
- }
- }
-
-
- /**
- * Run post-compile visitors
- *
- */
- private function PostVisitors($evaldRoot){
-
- $visitors = array();
- $visitors[] = new Less_Visitor_joinSelector();
- if( self::$has_extends ){
- $visitors[] = new Less_Visitor_processExtends();
- }
- $visitors[] = new Less_Visitor_toCSS();
-
-
- if( Less_Parser::$options['plugins'] ){
- foreach(Less_Parser::$options['plugins'] as $plugin){
- if( property_exists($plugin,'isPreEvalVisitor') && $plugin->isPreEvalVisitor ){
- continue;
- }
-
- if( property_exists($plugin,'isPreVisitor') && $plugin->isPreVisitor ){
- array_unshift( $visitors, $plugin);
- }else{
- $visitors[] = $plugin;
- }
- }
- }
-
-
- for($i = 0; $i < count($visitors); $i++ ){
- $visitors[$i]->run($evaldRoot);
- }
-
- }
-
-
- /**
- * Parse a Less string into css
- *
- * @param string $str The string to convert
- * @param string $uri_root The url of the file
- * @return Less_Tree_Ruleset|Less_Parser
- */
- public function parse( $str, $file_uri = null ){
-
- if( !$file_uri ){
- $uri_root = '';
- $filename = 'anonymous-file-'.Less_Parser::$next_id++.'.less';
- }else{
- $file_uri = self::WinPath($file_uri);
- $filename = $file_uri;
- $uri_root = dirname($file_uri);
- }
-
- $previousFileInfo = $this->env->currentFileInfo;
- $uri_root = self::WinPath($uri_root);
- $this->SetFileInfo($filename, $uri_root);
-
- $this->input = $str;
- $this->_parse();
-
- if( $previousFileInfo ){
- $this->env->currentFileInfo = $previousFileInfo;
- }
-
- return $this;
- }
-
-
- /**
- * Parse a Less string from a given file
- *
- * @throws Less_Exception_Parser
- * @param string $filename The file to parse
- * @param string $uri_root The url of the file
- * @param bool $returnRoot Indicates whether the return value should be a css string a root node
- * @return Less_Tree_Ruleset|Less_Parser
- */
- public function parseFile( $filename, $uri_root = '', $returnRoot = false){
-
- if( !file_exists($filename) ){
- $this->Error(sprintf('File `%s` not found.', $filename));
- }
-
-
- // fix uri_root?
- // Instead of The mixture of file path for the first argument and directory path for the second argument has bee
- if( !$returnRoot && !empty($uri_root) && basename($uri_root) == basename($filename) ){
- $uri_root = dirname($uri_root);
- }
-
-
- $previousFileInfo = $this->env->currentFileInfo;
-
-
- if( $filename ){
- $filename = self::AbsPath($filename, true);
- }
- $uri_root = self::WinPath($uri_root);
-
- $this->SetFileInfo($filename, $uri_root);
-
- self::AddParsedFile($filename);
-
- if( $returnRoot ){
- $rules = $this->GetRules( $filename );
- $return = new Less_Tree_Ruleset(array(), $rules );
- }else{
- $this->_parse( $filename );
- $return = $this;
- }
-
- if( $previousFileInfo ){
- $this->env->currentFileInfo = $previousFileInfo;
- }
-
- return $return;
- }
-
-
- /**
- * Allows a user to set variables values
- * @param array $vars
- * @return Less_Parser
- */
- public function ModifyVars( $vars ){
-
- $this->input = Less_Parser::serializeVars( $vars );
- $this->_parse();
-
- return $this;
- }
-
-
- /**
- * @param string $filename
- */
- public function SetFileInfo( $filename, $uri_root = ''){
-
- $filename = Less_Environment::normalizePath($filename);
- $dirname = preg_replace('/[^\/\\\\]*$/','',$filename);
-
- if( !empty($uri_root) ){
- $uri_root = rtrim($uri_root,'/').'/';
- }
-
- $currentFileInfo = array();
-
- //entry info
- if( isset($this->env->currentFileInfo) ){
- $currentFileInfo['entryPath'] = $this->env->currentFileInfo['entryPath'];
- $currentFileInfo['entryUri'] = $this->env->currentFileInfo['entryUri'];
- $currentFileInfo['rootpath'] = $this->env->currentFileInfo['rootpath'];
-
- }else{
- $currentFileInfo['entryPath'] = $dirname;
- $currentFileInfo['entryUri'] = $uri_root;
- $currentFileInfo['rootpath'] = $dirname;
- }
-
- $currentFileInfo['currentDirectory'] = $dirname;
- $currentFileInfo['currentUri'] = $uri_root.basename($filename);
- $currentFileInfo['filename'] = $filename;
- $currentFileInfo['uri_root'] = $uri_root;
-
-
- //inherit reference
- if( isset($this->env->currentFileInfo['reference']) && $this->env->currentFileInfo['reference'] ){
- $currentFileInfo['reference'] = true;
- }
-
- $this->env->currentFileInfo = $currentFileInfo;
- }
-
-
- /**
- * @deprecated 1.5.1.2
- *
- */
- public function SetCacheDir( $dir ){
-
- if( !file_exists($dir) ){
- if( mkdir($dir) ){
- return true;
- }
- throw new Less_Exception_Parser('Less.php cache directory couldn\'t be created: '.$dir);
-
- }elseif( !is_dir($dir) ){
- throw new Less_Exception_Parser('Less.php cache directory doesn\'t exist: '.$dir);
-
- }elseif( !is_writable($dir) ){
- throw new Less_Exception_Parser('Less.php cache directory isn\'t writable: '.$dir);
-
- }else{
- $dir = self::WinPath($dir);
- Less_Cache::$cache_dir = rtrim($dir,'/').'/';
- return true;
- }
- }
-
-
- /**
- * Set a list of directories or callbacks the parser should use for determining import paths
- *
- * @param array $dirs
- */
- public function SetImportDirs( $dirs ){
- Less_Parser::$options['import_dirs'] = array();
-
- foreach($dirs as $path => $uri_root){
-
- $path = self::WinPath($path);
- if( !empty($path) ){
- $path = rtrim($path,'/').'/';
- }
-
- if ( !is_callable($uri_root) ){
- $uri_root = self::WinPath($uri_root);
- if( !empty($uri_root) ){
- $uri_root = rtrim($uri_root,'/').'/';
- }
- }
-
- Less_Parser::$options['import_dirs'][$path] = $uri_root;
- }
- }
-
- /**
- * @param string $file_path
- */
- private function _parse( $file_path = null ){
- $this->rules = array_merge($this->rules, $this->GetRules( $file_path ));
- }
-
-
- /**
- * Return the results of parsePrimary for $file_path
- * Use cache and save cached results if possible
- *
- * @param string|null $file_path
- */
- private function GetRules( $file_path ){
-
- $this->SetInput($file_path);
-
- $cache_file = $this->CacheFile( $file_path );
- if( $cache_file ){
- if( Less_Parser::$options['cache_method'] == 'callback' ){
- if( is_callable(Less_Parser::$options['cache_callback_get']) ){
- $cache = call_user_func_array(
- Less_Parser::$options['cache_callback_get'],
- array($this, $file_path, $cache_file)
- );
-
- if( $cache ){
- $this->UnsetInput();
- return $cache;
- }
- }
-
- }elseif( file_exists($cache_file) ){
- switch(Less_Parser::$options['cache_method']){
-
- // Using serialize
- // Faster but uses more memory
- case 'serialize':
- $cache = unserialize(file_get_contents($cache_file));
- if( $cache ){
- touch($cache_file);
- $this->UnsetInput();
- return $cache;
- }
- break;
-
-
- // Using generated php code
- case 'var_export':
- case 'php':
- $this->UnsetInput();
- return include($cache_file);
- }
- }
- }
-
- $rules = $this->parsePrimary();
-
- if( $this->pos < $this->input_len ){
- throw new Less_Exception_Chunk($this->input, null, $this->furthest, $this->env->currentFileInfo);
- }
-
- $this->UnsetInput();
-
-
- //save the cache
- if( $cache_file ){
- if( Less_Parser::$options['cache_method'] == 'callback' ){
- if( is_callable(Less_Parser::$options['cache_callback_set']) ){
- call_user_func_array(
- Less_Parser::$options['cache_callback_set'],
- array($this, $file_path, $cache_file, $rules)
- );
- }
-
- }else{
- //msg('write cache file');
- switch(Less_Parser::$options['cache_method']){
- case 'serialize':
- file_put_contents( $cache_file, serialize($rules) );
- break;
- case 'php':
- file_put_contents( $cache_file, '<?php return '.self::ArgString($rules).'; ?>' );
- break;
- case 'var_export':
- //Requires __set_state()
- file_put_contents( $cache_file, '<?php return '.var_export($rules,true).'; ?>' );
- break;
- }
-
- Less_Cache::CleanCache();
- }
- }
-
- return $rules;
- }
-
-
- /**
- * Set up the input buffer
- *
- */
- public function SetInput( $file_path ){
-
- if( $file_path ){
- $this->input = file_get_contents( $file_path );
- }
-
- $this->pos = $this->furthest = 0;
-
- // Remove potential UTF Byte Order Mark
- $this->input = preg_replace('/\\G\xEF\xBB\xBF/', '', $this->input);
- $this->input_len = strlen($this->input);
-
-
- if( Less_Parser::$options['sourceMap'] && $this->env->currentFileInfo ){
- $uri = $this->env->currentFileInfo['currentUri'];
- Less_Parser::$contentsMap[$uri] = $this->input;
- }
-
- }
-
-
- /**
- * Free up some memory
- *
- */
- public function UnsetInput(){
- unset($this->input, $this->pos, $this->input_len, $this->furthest);
- $this->saveStack = array();
- }
-
-
- public function CacheFile( $file_path ){
-
- if( $file_path && $this->CacheEnabled() ){
-
- $env = get_object_vars($this->env);
- unset($env['frames']);
-
- $parts = array();
- $parts[] = $file_path;
- $parts[] = filesize( $file_path );
- $parts[] = filemtime( $file_path );
- $parts[] = $env;
- $parts[] = Less_Version::cache_version;
- $parts[] = Less_Parser::$options['cache_method'];
- return Less_Cache::$cache_dir . Less_Cache::$prefix . base_convert( sha1(json_encode($parts) ), 16, 36) . '.lesscache';
- }
- }
-
-
- static function AddParsedFile($file){
- self::$imports[] = $file;
- }
-
- static function AllParsedFiles(){
- return self::$imports;
- }
-
- /**
- * @param string $file
- */
- static function FileParsed($file){
- return in_array($file,self::$imports);
- }
-
-
- function save() {
- $this->saveStack[] = $this->pos;
- }
-
- private function restore() {
- $this->pos = array_pop($this->saveStack);
- }
-
- private function forget(){
- array_pop($this->saveStack);
- }
-
- /**
- * Determine if the character at the specified offset from the current position is a white space.
- *
- * @param int $offset
- *
- * @return bool
- */
- private function isWhitespace($offset = 0) {
- return strpos(" \t\n\r\v\f", $this->input[$this->pos + $offset]) !== false;
- }
-
- /**
- * Parse from a token, regexp or string, and move forward if match
- *
- * @param array $toks
- * @return array
- */
- private function match($toks){
-
- // The match is confirmed, add the match length to `this::pos`,
- // and consume any extra white-space characters (' ' || '\n')
- // which come after that. The reason for this is that LeSS's
- // grammar is mostly white-space insensitive.
- //
-
- foreach($toks as $tok){
-
- $char = $tok[0];
-
- if( $char === '/' ){
- $match = $this->MatchReg($tok);
-
- if( $match ){
- return count($match) === 1 ? $match[0] : $match;
- }
-
- }elseif( $char === '#' ){
- $match = $this->MatchChar($tok[1]);
-
- }else{
- // Non-terminal, match using a function call
- $match = $this->$tok();
-
- }
-
- if( $match ){
- return $match;
- }
- }
- }
-
- /**
- * @param string[] $toks
- *
- * @return string
- */
- private function MatchFuncs($toks){
-
- if( $this->pos < $this->input_len ){
- foreach($toks as $tok){
- $match = $this->$tok();
- if( $match ){
- return $match;
- }
- }
- }
-
- }
-
- // Match a single character in the input,
- private function MatchChar($tok){
- if( ($this->pos < $this->input_len) && ($this->input[$this->pos] === $tok) ){
- $this->skipWhitespace(1);
- return $tok;
- }
- }
-
- // Match a regexp from the current start point
- private function MatchReg($tok){
-
- if( preg_match($tok, $this->input, $match, 0, $this->pos) ){
- $this->skipWhitespace(strlen($match[0]));
- return $match;
- }
- }
-
-
- /**
- * Same as match(), but don't change the state of the parser,
- * just return the match.
- *
- * @param string $tok
- * @return integer
- */
- public function PeekReg($tok){
- return preg_match($tok, $this->input, $match, 0, $this->pos);
- }
-
- /**
- * @param string $tok
- */
- public function PeekChar($tok){
- //return ($this->input[$this->pos] === $tok );
- return ($this->pos < $this->input_len) && ($this->input[$this->pos] === $tok );
- }
-
-
- /**
- * @param integer $length
- */
- public function skipWhitespace($length){
-
- $this->pos += $length;
-
- for(; $this->pos < $this->input_len; $this->pos++ ){
- $c = $this->input[$this->pos];
-
- if( ($c !== "\n") && ($c !== "\r") && ($c !== "\t") && ($c !== ' ') ){
- break;
- }
- }
- }
-
-
- /**
- * @param string $tok
- * @param string|null $msg
- */
- public function expect($tok, $msg = NULL) {
- $result = $this->match( array($tok) );
- if (!$result) {
- $this->Error( $msg ? "Expected '" . $tok . "' got '" . $this->input[$this->pos] . "'" : $msg );
- } else {
- return $result;
- }
- }
-
- /**
- * @param string $tok
- */
- public function expectChar($tok, $msg = null ){
- $result = $this->MatchChar($tok);
- if( !$result ){
- $msg = $msg ? $msg : "Expected '" . $tok . "' got '" . $this->input[$this->pos] . "'";
- $this->Error( $msg );
- }else{
- return $result;
- }
- }
-
- //
- // Here in, the parsing rules/functions
- //
- // The basic structure of the syntax tree generated is as follows:
- //
- // Ruleset -> Rule -> Value -> Expression -> Entity
- //
- // Here's some LESS code:
- //
- // .class {
- // color: #fff;
- // border: 1px solid #000;
- // width: @w + 4px;
- // > .child {...}
- // }
- //
- // And here's what the parse tree might look like:
- //
- // Ruleset (Selector '.class', [
- // Rule ("color", Value ([Expression [Color #fff]]))
- // Rule ("border", Value ([Expression [Dimension 1px][Keyword "solid"][Color #000]]))
- // Rule ("width", Value ([Expression [Operation "+" [Variable "@w"][Dimension 4px]]]))
- // Ruleset (Selector [Element '>', '.child'], [...])
- // ])
- //
- // In general, most rules will try to parse a token with the `$()` function, and if the return
- // value is truly, will return a new node, of the relevant type. Sometimes, we need to check
- // first, before parsing, that's when we use `peek()`.
- //
-
- //
- // The `primary` rule is the *entry* and *exit* point of the parser.
- // The rules here can appear at any level of the parse tree.
- //
- // The recursive nature of the grammar is an interplay between the `block`
- // rule, which represents `{ ... }`, the `ruleset` rule, and this `primary` rule,
- // as represented by this simplified grammar:
- //
- // primary → (ruleset | rule)+
- // ruleset → selector+ block
- // block → '{' primary '}'
- //
- // Only at one point is the primary rule not called from the
- // block rule: at the root level.
- //
- private function parsePrimary(){
- $root = array();
-
- while( true ){
-
- if( $this->pos >= $this->input_len ){
- break;
- }
-
- $node = $this->parseExtend(true);
- if( $node ){
- $root = array_merge($root,$node);
- continue;
- }
-
- //$node = $this->MatchFuncs( array( 'parseMixinDefinition', 'parseRule', 'parseRuleset', 'parseMixinCall', 'parseComment', 'parseDirective'));
- $node = $this->MatchFuncs( array( 'parseMixinDefinition', 'parseNameValue', 'parseRule', 'parseRuleset', 'parseMixinCall', 'parseComment', 'parseRulesetCall', 'parseDirective'));
-
- if( $node ){
- $root[] = $node;
- }elseif( !$this->MatchReg('/\\G[\s\n;]+/') ){
- break;
- }
-
- if( $this->PeekChar('}') ){
- break;
- }
- }
-
- return $root;
- }
-
-
-
- // We create a Comment node for CSS comments `/* */`,
- // but keep the LeSS comments `//` silent, by just skipping
- // over them.
- private function parseComment(){
-
- if( $this->input[$this->pos] !== '/' ){
- return;
- }
-
- if( $this->input[$this->pos+1] === '/' ){
- $match = $this->MatchReg('/\\G\/\/.*/');
- return $this->NewObj4('Less_Tree_Comment',array($match[0], true, $this->pos, $this->env->currentFileInfo));
- }
-
- //$comment = $this->MatchReg('/\\G\/\*(?:[^*]|\*+[^\/*])*\*+\/\n?/');
- $comment = $this->MatchReg('/\\G\/\*(?s).*?\*+\/\n?/');//not the same as less.js to prevent fatal errors
- if( $comment ){
- return $this->NewObj4('Less_Tree_Comment',array($comment[0], false, $this->pos, $this->env->currentFileInfo));
- }
- }
-
- private function parseComments(){
- $comments = array();
-
- while( $this->pos < $this->input_len ){
- $comment = $this->parseComment();
- if( !$comment ){
- break;
- }
-
- $comments[] = $comment;
- }
-
- return $comments;
- }
-
-
-
- //
- // A string, which supports escaping " and '
- //
- // "milky way" 'he\'s the one!'
- //
- private function parseEntitiesQuoted() {
- $j = $this->pos;
- $e = false;
- $index = $this->pos;
-
- if( $this->input[$this->pos] === '~' ){
- $j++;
- $e = true; // Escaped strings
- }
-
- $char = $this->input[$j];
- if( $char !== '"' && $char !== "'" ){
- return;
- }
-
- if ($e) {
- $this->MatchChar('~');
- }
-
-
- $matched = $this->MatchQuoted($char, $j+1);
- if( $matched === false ){
- return;
- }
-
- $quoted = $char.$matched.$char;
- return $this->NewObj5('Less_Tree_Quoted',array($quoted, $matched, $e, $index, $this->env->currentFileInfo) );
- }
-
-
- /**
- * When PCRE JIT is enabled in php, regular expressions don't work for matching quoted strings
- *
- * $regex = '/\\G\'((?:[^\'\\\\\r\n]|\\\\.|\\\\\r\n|\\\\[\n\r\f])*)\'/';
- * $regex = '/\\G"((?:[^"\\\\\r\n]|\\\\.|\\\\\r\n|\\\\[\n\r\f])*)"/';
- *
- */
- private function MatchQuoted($quote_char, $i){
-
- $matched = '';
- while( $i < $this->input_len ){
- $c = $this->input[$i];
-
- //escaped character
- if( $c === '\\' ){
- $matched .= $c . $this->input[$i+1];
- $i += 2;
- continue;
- }
-
- if( $c === $quote_char ){
- $this->pos = $i+1;
- $this->skipWhitespace(0);
- return $matched;
- }
-
- if( $c === "\r" || $c === "\n" ){
- return false;
- }
-
- $i++;
- $matched .= $c;
- }
-
- return false;
- }
-
-
- //
- // A catch-all word, such as:
- //
- // black border-collapse
- //
- private function parseEntitiesKeyword(){
-
- //$k = $this->MatchReg('/\\G[_A-Za-z-][_A-Za-z0-9-]*/');
- $k = $this->MatchReg('/\\G%|\\G[_A-Za-z-][_A-Za-z0-9-]*/');
- if( $k ){
- $k = $k[0];
- $color = $this->fromKeyword($k);
- if( $color ){
- return $color;
- }
- return $this->NewObj1('Less_Tree_Keyword',$k);
- }
- }
-
- // duplicate of Less_Tree_Color::FromKeyword
- private function FromKeyword( $keyword ){
- $keyword = strtolower($keyword);
-
- if( Less_Colors::hasOwnProperty($keyword) ){
- // detect named color
- return $this->NewObj1('Less_Tree_Color',substr(Less_Colors::color($keyword), 1));
- }
-
- if( $keyword === 'transparent' ){
- return $this->NewObj3('Less_Tree_Color', array( array(0, 0, 0), 0, true));
- }
- }
-
- //
- // A function call
- //
- // rgb(255, 0, 255)
- //
- // We also try to catch IE's `alpha()`, but let the `alpha` parser
- // deal with the details.
- //
- // The arguments are parsed with the `entities.arguments` parser.
- //
- private function parseEntitiesCall(){
- $index = $this->pos;
-
- if( !preg_match('/\\G([\w-]+|%|progid:[\w\.]+)\(/', $this->input, $name,0,$this->pos) ){
- return;
- }
- $name = $name[1];
- $nameLC = strtolower($name);
-
- if ($nameLC === 'url') {
- return null;
- }
-
- $this->pos += strlen($name);
-
- if( $nameLC === 'alpha' ){
- $alpha_ret = $this->parseAlpha();
- if( $alpha_ret ){
- return $alpha_ret;
- }
- }
-
- $this->MatchChar('('); // Parse the '(' and consume whitespace.
-
- $args = $this->parseEntitiesArguments();
-
- if( !$this->MatchChar(')') ){
- return;
- }
-
- if ($name) {
- return $this->NewObj4('Less_Tree_Call',array($name, $args, $index, $this->env->currentFileInfo) );
- }
- }
-
- /**
- * Parse a list of arguments
- *
- * @return array
- */
- private function parseEntitiesArguments(){
-
- $args = array();
- while( true ){
- $arg = $this->MatchFuncs( array('parseEntitiesAssignment','parseExpression') );
- if( !$arg ){
- break;
- }
-
- $args[] = $arg;
- if( !$this->MatchChar(',') ){
- break;
- }
- }
- return $args;
- }
-
- private function parseEntitiesLiteral(){
- return $this->MatchFuncs( array('parseEntitiesDimension','parseEntitiesColor','parseEntitiesQuoted','parseUnicodeDescriptor') );
- }
-
- // Assignments are argument entities for calls.
- // They are present in ie filter properties as shown below.
- //
- // filter: progid:DXImageTransform.Microsoft.Alpha( *opacity=50* )
- //
- private function parseEntitiesAssignment() {
-
- $key = $this->MatchReg('/\\G\w+(?=\s?=)/');
- if( !$key ){
- return;
- }
-
- if( !$this->MatchChar('=') ){
- return;
- }
-
- $value = $this->parseEntity();
- if( $value ){
- return $this->NewObj2('Less_Tree_Assignment',array($key[0], $value));
- }
- }
-
- //
- // Parse url() tokens
- //
- // We use a specific rule for urls, because they don't really behave like
- // standard function calls. The difference is that the argument doesn't have
- // to be enclosed within a string, so it can't be parsed as an Expression.
- //
- private function parseEntitiesUrl(){
-
-
- if( $this->input[$this->pos] !== 'u' || !$this->matchReg('/\\Gurl\(/') ){
- return;
- }
-
- $value = $this->match( array('parseEntitiesQuoted','parseEntitiesVariable','/\\Gdata\:.*?[^\)]+/','/\\G(?:(?:\\\\[\(\)\'"])|[^\(\)\'"])+/') );
- if( !$value ){
- $value = '';
- }
-
-
- $this->expectChar(')');
-
-
- if( isset($value->value) || $value instanceof Less_Tree_Variable ){
- return $this->NewObj2('Less_Tree_Url',array($value, $this->env->currentFileInfo));
- }
-
- return $this->NewObj2('Less_Tree_Url', array( $this->NewObj1('Less_Tree_Anonymous',$value), $this->env->currentFileInfo) );
- }
-
-
- //
- // A Variable entity, such as `@fink`, in
- //
- // width: @fink + 2px
- //
- // We use a different parser for variable definitions,
- // see `parsers.variable`.
- //
- private function parseEntitiesVariable(){
- $index = $this->pos;
- if ($this->PeekChar('@') && ($name = $this->MatchReg('/\\G@@?[\w-]+/'))) {
- return $this->NewObj3('Less_Tree_Variable', array( $name[0], $index, $this->env->currentFileInfo));
- }
- }
-
-
- // A variable entity using the protective {} e.g. @{var}
- private function parseEntitiesVariableCurly() {
- $index = $this->pos;
-
- if( $this->input_len > ($this->pos+1) && $this->input[$this->pos] === '@' && ($curly = $this->MatchReg('/\\G@\{([\w-]+)\}/')) ){
- return $this->NewObj3('Less_Tree_Variable',array('@'.$curly[1], $index, $this->env->currentFileInfo));
- }
- }
-
- //
- // A Hexadecimal color
- //
- // #4F3C2F
- //
- // `rgb` and `hsl` colors are parsed through the `entities.call` parser.
- //
- private function parseEntitiesColor(){
- if ($this->PeekChar('#') && ($rgb = $this->MatchReg('/\\G#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})/'))) {
- return $this->NewObj1('Less_Tree_Color',$rgb[1]);
- }
- }
-
- //
- // A Dimension, that is, a number and a unit
- //
- // 0.5em 95%
- //
- private function parseEntitiesDimension(){
-
- $c = @ord($this->input[$this->pos]);
-
- //Is the first char of the dimension 0-9, '.', '+' or '-'
- if (($c > 57 || $c < 43) || $c === 47 || $c == 44){
- return;
- }
-
- $value = $this->MatchReg('/\\G([+-]?\d*\.?\d+)(%|[a-z]+)?/');
- if( $value ){
-
- if( isset($value[2]) ){
- return $this->NewObj2('Less_Tree_Dimension', array($value[1],$value[2]));
- }
- return $this->NewObj1('Less_Tree_Dimension',$value[1]);
- }
- }
-
-
- //
- // A unicode descriptor, as is used in unicode-range
- //
- // U+0?? or U+00A1-00A9
- //
- function parseUnicodeDescriptor() {
- $ud = $this->MatchReg('/\\G(U\+[0-9a-fA-F?]+)(\-[0-9a-fA-F?]+)?/');
- if( $ud ){
- return $this->NewObj1('Less_Tree_UnicodeDescriptor', $ud[0]);
- }
- }
-
-
- //
- // JavaScript code to be evaluated
- //
- // `window.location.href`
- //
- private function parseEntitiesJavascript(){
- $e = false;
- $j = $this->pos;
- if( $this->input[$j] === '~' ){
- $j++;
- $e = true;
- }
- if( $this->input[$j] !== '`' ){
- return;
- }
- if( $e ){
- $this->MatchChar('~');
- }
- $str = $this->MatchReg('/\\G`([^`]*)`/');
- if( $str ){
- return $this->NewObj3('Less_Tree_Javascript', array($str[1], $this->pos, $e));
- }
- }
-
-
- //
- // The variable part of a variable definition. Used in the `rule` parser
- //
- // @fink:
- //
- private function parseVariable(){
- if ($this->PeekChar('@') && ($name = $this->MatchReg('/\\G(@[\w-]+)\s*:/'))) {
- return $name[1];
- }
- }
-
-
- //
- // The variable part of a variable definition. Used in the `rule` parser
- //
- // @fink();
- //
- private function parseRulesetCall(){
-
- if( $this->input[$this->pos] === '@' && ($name = $this->MatchReg('/\\G(@[\w-]+)\s*\(\s*\)\s*;/')) ){
- return $this->NewObj1('Less_Tree_RulesetCall', $name[1] );
- }
- }
-
-
- //
- // extend syntax - used to extend selectors
- //
- function parseExtend($isRule = false){
-
- $index = $this->pos;
- $extendList = array();
-
-
- if( !$this->MatchReg( $isRule ? '/\\G&:extend\(/' : '/\\G:extend\(/' ) ){ return; }
-
- do{
- $option = null;
- $elements = array();
- while( true ){
- $option = $this->MatchReg('/\\G(all)(?=\s*(\)|,))/');
- if( $option ){ break; }
- $e = $this->parseElement();
- if( !$e ){ break; }
- $elements[] = $e;
- }
-
- if( $option ){
- $option = $option[1];
- }
-
- $extendList[] = $this->NewObj3('Less_Tree_Extend', array( $this->NewObj1('Less_Tree_Selector',$elements), $option, $index ));
-
- }while( $this->MatchChar(",") );
-
- $this->expect('/\\G\)/');
-
- if( $isRule ){
- $this->expect('/\\G;/');
- }
-
- return $extendList;
- }
-
-
- //
- // A Mixin call, with an optional argument list
- //
- // #mixins > .square(#fff);
- // .rounded(4px, black);
- // .button;
- //
- // The `while` loop is there because mixins can be
- // namespaced, but we only support the child and descendant
- // selector for now.
- //
- private function parseMixinCall(){
-
- $char = $this->input[$this->pos];
- if( $char !== '.' && $char !== '#' ){
- return;
- }
-
- $index = $this->pos;
- $this->save(); // stop us absorbing part of an invalid selector
-
- $elements = $this->parseMixinCallElements();
-
- if( $elements ){
-
- if( $this->MatchChar('(') ){
- $returned = $this->parseMixinArgs(true);
- $args = $returned['args'];
- $this->expectChar(')');
- }else{
- $args = array();
- }
-
- $important = $this->parseImportant();
-
- if( $this->parseEnd() ){
- $this->forget();
- return $this->NewObj5('Less_Tree_Mixin_Call', array( $elements, $args, $index, $this->env->currentFileInfo, $important));
- }
- }
-
- $this->restore();
- }
-
-
- private function parseMixinCallElements(){
- $elements = array();
- $c = null;
-
- while( true ){
- $elemIndex = $this->pos;
- $e = $this->MatchReg('/\\G[#.](?:[\w-]|\\\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/');
- if( !$e ){
- break;
- }
- $elements[] = $this->NewObj4('Less_Tree_Element', array($c, $e[0], $elemIndex, $this->env->currentFileInfo));
- $c = $this->MatchChar('>');
- }
-
- return $elements;
- }
-
-
-
- /**
- * @param boolean $isCall
- */
- private function parseMixinArgs( $isCall ){
- $expressions = array();
- $argsSemiColon = array();
- $isSemiColonSeperated = null;
- $argsComma = array();
- $expressionContainsNamed = null;
- $name = null;
- $returner = array('args'=>array(), 'variadic'=> false);
-
- $this->save();
-
- while( true ){
- if( $isCall ){
- $arg = $this->MatchFuncs( array( 'parseDetachedRuleset','parseExpression' ) );
- } else {
- $this->parseComments();
- if( $this->input[ $this->pos ] === '.' && $this->MatchReg('/\\G\.{3}/') ){
- $returner['variadic'] = true;
- if( $this->MatchChar(";") && !$isSemiColonSeperated ){
- $isSemiColonSeperated = true;
- }
-
- if( $isSemiColonSeperated ){
- $argsSemiColon[] = array('variadic'=>true);
- }else{
- $argsComma[] = array('variadic'=>true);
- }
- break;
- }
- $arg = $this->MatchFuncs( array('parseEntitiesVariable','parseEntitiesLiteral','parseEntitiesKeyword') );
- }
-
- if( !$arg ){
- break;
- }
-
-
- $nameLoop = null;
- if( $arg instanceof Less_Tree_Expression ){
- $arg->throwAwayComments();
- }
- $value = $arg;
- $val = null;
-
- if( $isCall ){
- // Variable
- if( property_exists($arg,'value') && count($arg->value) == 1 ){
- $val = $arg->value[0];
- }
- } else {
- $val = $arg;
- }
-
-
- if( $val instanceof Less_Tree_Variable ){
-
- if( $this->MatchChar(':') ){
- if( $expressions ){
- if( $isSemiColonSeperated ){
- $this->Error('Cannot mix ; and , as delimiter types');
- }
- $expressionContainsNamed = true;
- }
-
- // we do not support setting a ruleset as a default variable - it doesn't make sense
- // However if we do want to add it, there is nothing blocking it, just don't error
- // and remove isCall dependency below
- $value = null;
- if( $isCall ){
- $value = $this->parseDetachedRuleset();
- }
- if( !$value ){
- $value = $this->parseExpression();
- }
-
- if( !$value ){
- if( $isCall ){
- $this->Error('could not understand value for named argument');
- } else {
- $this->restore();
- $returner['args'] = array();
- return $returner;
- }
- }
-
- $nameLoop = ($name = $val->name);
- }elseif( !$isCall && $this->MatchReg('/\\G\.{3}/') ){
- $returner['variadic'] = true;
- if( $this->MatchChar(";") && !$isSemiColonSeperated ){
- $isSemiColonSeperated = true;
- }
- if( $isSemiColonSeperated ){
- $argsSemiColon[] = array('name'=> $arg->name, 'variadic' => true);
- }else{
- $argsComma[] = array('name'=> $arg->name, 'variadic' => true);
- }
- break;
- }elseif( !$isCall ){
- $name = $nameLoop = $val->name;
- $value = null;
- }
- }
-
- if( $value ){
- $expressions[] = $value;
- }
-
- $argsComma[] = array('name'=>$nameLoop, 'value'=>$value );
-
- if( $this->MatchChar(',') ){
- continue;
- }
-
- if( $this->MatchChar(';') || $isSemiColonSeperated ){
-
- if( $expressionContainsNamed ){
- $this->Error('Cannot mix ; and , as delimiter types');
- }
-
- $isSemiColonSeperated = true;
-
- if( count($expressions) > 1 ){
- $value = $this->NewObj1('Less_Tree_Value', $expressions);
- }
- $argsSemiColon[] = array('name'=>$name, 'value'=>$value );
-
- $name = null;
- $expressions = array();
- $expressionContainsNamed = false;
- }
- }
-
- $this->forget();
- $returner['args'] = ($isSemiColonSeperated ? $argsSemiColon : $argsComma);
- return $returner;
- }
-
-
-
- //
- // A Mixin definition, with a list of parameters
- //
- // .rounded (@radius: 2px, @color) {
- // ...
- // }
- //
- // Until we have a finer grained state-machine, we have to
- // do a look-ahead, to make sure we don't have a mixin call.
- // See the `rule` function for more information.
- //
- // We start by matching `.rounded (`, and then proceed on to
- // the argument list, which has optional default values.
- // We store the parameters in `params`, with a `value` key,
- // if there is a value, such as in the case of `@radius`.
- //
- // Once we've got our params list, and a closing `)`, we parse
- // the `{...}` block.
- //
- private function parseMixinDefinition(){
- $cond = null;
-
- $char = $this->input[$this->pos];
- if( ($char !== '.' && $char !== '#') || ($char === '{' && $this->PeekReg('/\\G[^{]*\}/')) ){
- return;
- }
-
- $this->save();
-
- $match = $this->MatchReg('/\\G([#.](?:[\w-]|\\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+)\s*\(/');
- if( $match ){
- $name = $match[1];
-
- $argInfo = $this->parseMixinArgs( false );
- $params = $argInfo['args'];
- $variadic = $argInfo['variadic'];
-
-
- // .mixincall("@{a}");
- // looks a bit like a mixin definition..
- // also
- // .mixincall(@a: {rule: set;});
- // so we have to be nice and restore
- if( !$this->MatchChar(')') ){
- $this->furthest = $this->pos;
- $this->restore();
- return;
- }
-
-
- $this->parseComments();
-
- if ($this->MatchReg('/\\Gwhen/')) { // Guard
- $cond = $this->expect('parseConditions', 'Expected conditions');
- }
-
- $ruleset = $this->parseBlock();
-
- if( is_array($ruleset) ){
- $this->forget();
- return $this->NewObj5('Less_Tree_Mixin_Definition', array( $name, $params, $ruleset, $cond, $variadic));
- }
-
- $this->restore();
- }else{
- $this->forget();
- }
- }
-
- //
- // Entities are the smallest recognized token,
- // and can be found inside a rule's value.
- //
- private function parseEntity(){
-
- return $this->MatchFuncs( array('parseEntitiesLiteral','parseEntitiesVariable','parseEntitiesUrl','parseEntitiesCall','parseEntitiesKeyword','parseEntitiesJavascript','parseComment') );
- }
-
- //
- // A Rule terminator. Note that we use `peek()` to check for '}',
- // because the `block` rule will be expecting it, but we still need to make sure
- // it's there, if ';' was omitted.
- //
- private function parseEnd(){
- return $this->MatchChar(';') || $this->PeekChar('}');
- }
-
- //
- // IE's alpha function
- //
- // alpha(opacity=88)
- //
- private function parseAlpha(){
-
- if ( ! $this->MatchReg('/\\G\(opacity=/i')) {
- return;
- }
-
- $value = $this->MatchReg('/\\G[0-9]+/');
- if( $value ){
- $value = $value[0];
- }else{
- $value = $this->parseEntitiesVariable();
- if( !$value ){
- return;
- }
- }
-
- $this->expectChar(')');
- return $this->NewObj1('Less_Tree_Alpha',$value);
- }
-
-
- //
- // A Selector Element
- //
- // div
- // + h1
- // #socks
- // input[type="text"]
- //
- // Elements are the building blocks for Selectors,
- // they are made out of a `Combinator` (see combinator rule),
- // and an element name, such as a tag a class, or `*`.
- //
- private function parseElement(){
- $c = $this->parseCombinator();
- $index = $this->pos;
-
- $e = $this->match( array('/\\G(?:\d+\.\d+|\d+)%/', '/\\G(?:[.#]?|:*)(?:[\w-]|[^\x00-\x9f]|\\\\(?:[A-Fa-f0-9]{1,6} ?|[^A-Fa-f0-9]))+/',
- '#*', '#&', 'parseAttribute', '/\\G\([^()@]+\)/', '/\\G[\.#](?=@)/', 'parseEntitiesVariableCurly') );
-
- if( is_null($e) ){
- $this->save();
- if( $this->MatchChar('(') ){
- if( ($v = $this->parseSelector()) && $this->MatchChar(')') ){
- $e = $this->NewObj1('Less_Tree_Paren',$v);
- $this->forget();
- }else{
- $this->restore();
- }
- }else{
- $this->forget();
- }
- }
-
- if( !is_null($e) ){
- return $this->NewObj4('Less_Tree_Element',array( $c, $e, $index, $this->env->currentFileInfo));
- }
- }
-
- //
- // Combinators combine elements together, in a Selector.
- //
- // Because our parser isn't white-space sensitive, special care
- // has to be taken, when parsing the descendant combinator, ` `,
- // as it's an empty space. We have to check the previous character
- // in the input, to see if it's a ` ` character.
- //
- private function parseCombinator(){
- if( $this->pos < $this->input_len ){
- $c = $this->input[$this->pos];
- if ($c === '>' || $c === '+' || $c === '~' || $c === '|' || $c === '^' ){
-
- $this->pos++;
- if( $this->input[$this->pos] === '^' ){
- $c = '^^';
- $this->pos++;
- }
-
- $this->skipWhitespace(0);
-
- return $c;
- }
-
- if( $this->pos > 0 && $this->isWhitespace(-1) ){
- return ' ';
- }
- }
- }
-
- //
- // A CSS selector (see selector below)
- // with less extensions e.g. the ability to extend and guard
- //
- private function parseLessSelector(){
- return $this->parseSelector(true);
- }
-
- //
- // A CSS Selector
- //
- // .class > div + h1
- // li a:hover
- //
- // Selectors are made out of one or more Elements, see above.
- //
- private function parseSelector( $isLess = false ){
- $elements = array();
- $extendList = array();
- $condition = null;
- $when = false;
- $extend = false;
- $e = null;
- $c = null;
- $index = $this->pos;
-
- while( ($isLess && ($extend = $this->parseExtend())) || ($isLess && ($when = $this->MatchReg('/\\Gwhen/') )) || ($e = $this->parseElement()) ){
- if( $when ){
- $condition = $this->expect('parseConditions', 'expected condition');
- }elseif( $condition ){
- //error("CSS guard can only be used at the end of selector");
- }elseif( $extend ){
- $extendList = array_merge($extendList,$extend);
- }else{
- //if( count($extendList) ){
- //error("Extend can only be used at the end of selector");
- //}
- if( $this->pos < $this->input_len ){
- $c = $this->input[ $this->pos ];
- }
- $elements[] = $e;
- $e = null;
- }
-
- if( $c === '{' || $c === '}' || $c === ';' || $c === ',' || $c === ')') { break; }
- }
-
- if( $elements ){
- return $this->NewObj5('Less_Tree_Selector',array($elements, $extendList, $condition, $index, $this->env->currentFileInfo));
- }
- if( $extendList ) {
- $this->Error('Extend must be used to extend a selector, it cannot be used on its own');
- }
- }
-
- private function parseTag(){
- return ( $tag = $this->MatchReg('/\\G[A-Za-z][A-Za-z-]*[0-9]?/') ) ? $tag : $this->MatchChar('*');
- }
-
- private function parseAttribute(){
-
- $val = null;
-
- if( !$this->MatchChar('[') ){
- return;
- }
-
- $key = $this->parseEntitiesVariableCurly();
- if( !$key ){
- $key = $this->expect('/\\G(?:[_A-Za-z0-9-\*]*\|)?(?:[_A-Za-z0-9-]|\\\\.)+/');
- }
-
- $op = $this->MatchReg('/\\G[|~*$^]?=/');
- if( $op ){
- $val = $this->match( array('parseEntitiesQuoted','/\\G[0-9]+%/','/\\G[\w-]+/','parseEntitiesVariableCurly') );
- }
-
- $this->expectChar(']');
-
- return $this->NewObj3('Less_Tree_Attribute',array( $key, $op[0], $val));
- }
-
- //
- // The `block` rule is used by `ruleset` and `mixin.definition`.
- // It's a wrapper around the `primary` rule, with added `{}`.
- //
- private function parseBlock(){
- if( $this->MatchChar('{') ){
- $content = $this->parsePrimary();
- if( $this->MatchChar('}') ){
- return $content;
- }
- }
- }
-
- private function parseBlockRuleset(){
- $block = $this->parseBlock();
-
- if( $block ){
- $block = $this->NewObj2('Less_Tree_Ruleset',array( null, $block));
- }
-
- return $block;
- }
-
- private function parseDetachedRuleset(){
- $blockRuleset = $this->parseBlockRuleset();
- if( $blockRuleset ){
- return $this->NewObj1('Less_Tree_DetachedRuleset',$blockRuleset);
- }
- }
-
- //
- // div, .class, body > p {...}
- //
- private function parseRuleset(){
- $selectors = array();
-
- $this->save();
-
- while( true ){
- $s = $this->parseLessSelector();
- if( !$s ){
- break;
- }
- $selectors[] = $s;
- $this->parseComments();
-
- if( $s->condition && count($selectors) > 1 ){
- $this->Error('Guards are only currently allowed on a single selector.');
- }
-
- if( !$this->MatchChar(',') ){
- break;
- }
- if( $s->condition ){
- $this->Error('Guards are only currently allowed on a single selector.');
- }
- $this->parseComments();
- }
-
-
- if( $selectors ){
- $rules = $this->parseBlock();
- if( is_array($rules) ){
- $this->forget();
- return $this->NewObj2('Less_Tree_Ruleset',array( $selectors, $rules)); //Less_Environment::$strictImports
- }
- }
-
- // Backtrack
- $this->furthest = $this->pos;
- $this->restore();
- }
-
- /**
- * Custom less.php parse function for finding simple name-value css pairs
- * ex: width:100px;
- *
- */
- private function parseNameValue(){
-
- $index = $this->pos;
- $this->save();
-
-
- //$match = $this->MatchReg('/\\G([a-zA-Z\-]+)\s*:\s*((?:\'")?[a-zA-Z0-9\-% \.,!]+?(?:\'")?)\s*([;}])/');
- $match = $this->MatchReg('/\\G([a-zA-Z\-]+)\s*:\s*([\'"]?[#a-zA-Z0-9\-%\.,]+?[\'"]?) *(! *important)?\s*([;}])/');
- if( $match ){
-
- if( $match[4] == '}' ){
- $this->pos = $index + strlen($match[0])-1;
- }
-
- if( $match[3] ){
- $match[2] .= ' !important';
- }
-
- return $this->NewObj4('Less_Tree_NameValue',array( $match[1], $match[2], $index, $this->env->currentFileInfo));
- }
-
- $this->restore();
- }
-
-
- private function parseRule( $tryAnonymous = null ){
-
- $merge = false;
- $startOfRule = $this->pos;
-
- $c = $this->input[$this->pos];
- if( $c === '.' || $c === '#' || $c === '&' ){
- return;
- }
-
- $this->save();
- $name = $this->MatchFuncs( array('parseVariable','parseRuleProperty'));
-
- if( $name ){
-
- $isVariable = is_string($name);
-
- $value = null;
- if( $isVariable ){
- $value = $this->parseDetachedRuleset();
- }
-
- $important = null;
- if( !$value ){
-
- // prefer to try to parse first if its a variable or we are compressing
- // but always fallback on the other one
- //if( !$tryAnonymous && is_string($name) && $name[0] === '@' ){
- if( !$tryAnonymous && (Less_Parser::$options['compress'] || $isVariable) ){
- $value = $this->MatchFuncs( array('parseValue','parseAnonymousValue'));
- }else{
- $value = $this->MatchFuncs( array('parseAnonymousValue','parseValue'));
- }
-
- $important = $this->parseImportant();
-
- // a name returned by this.ruleProperty() is always an array of the form:
- // [string-1, ..., string-n, ""] or [string-1, ..., string-n, "+"]
- // where each item is a tree.Keyword or tree.Variable
- if( !$isVariable && is_array($name) ){
- $nm = array_pop($name);
- if( $nm->value ){
- $merge = $nm->value;
- }
- }
- }
-
-
- if( $value && $this->parseEnd() ){
- $this->forget();
- return $this->NewObj6('Less_Tree_Rule',array( $name, $value, $important, $merge, $startOfRule, $this->env->currentFileInfo));
- }else{
- $this->furthest = $this->pos;
- $this->restore();
- if( $value && !$tryAnonymous ){
- return $this->parseRule(true);
- }
- }
- }else{
- $this->forget();
- }
- }
-
- function parseAnonymousValue(){
-
- if( preg_match('/\\G([^@+\/\'"*`(;{}-]*);/',$this->input, $match, 0, $this->pos) ){
- $this->pos += strlen($match[1]);
- return $this->NewObj1('Less_Tree_Anonymous',$match[1]);
- }
- }
-
- //
- // An @import directive
- //
- // @import "lib";
- //
- // Depending on our environment, importing is done differently:
- // In the browser, it's an XHR request, in Node, it would be a
- // file-system operation. The function used for importing is
- // stored in `import`, which we pass to the Import constructor.
- //
- private function parseImport(){
-
- $this->save();
-
- $dir = $this->MatchReg('/\\G@import?\s+/');
-
- if( $dir ){
- $options = $this->parseImportOptions();
- $path = $this->MatchFuncs( array('parseEntitiesQuoted','parseEntitiesUrl'));
-
- if( $path ){
- $features = $this->parseMediaFeatures();
- if( $this->MatchChar(';') ){
- if( $features ){
- $features = $this->NewObj1('Less_Tree_Value',$features);
- }
-
- $this->forget();
- return $this->NewObj5('Less_Tree_Import',array( $path, $features, $options, $this->pos, $this->env->currentFileInfo));
- }
- }
- }
-
- $this->restore();
- }
-
- private function parseImportOptions(){
-
- $options = array();
-
- // list of options, surrounded by parens
- if( !$this->MatchChar('(') ){
- return $options;
- }
- do{
- $optionName = $this->parseImportOption();
- if( $optionName ){
- $value = true;
- switch( $optionName ){
- case "css":
- $optionName = "less";
- $value = false;
- break;
- case "once":
- $optionName = "multiple";
- $value = false;
- break;
- }
- $options[$optionName] = $value;
- if( !$this->MatchChar(',') ){ break; }
- }
- }while( $optionName );
- $this->expectChar(')');
- return $options;
- }
-
- private function parseImportOption(){
- $opt = $this->MatchReg('/\\G(less|css|multiple|once|inline|reference|optional)/');
- if( $opt ){
- return $opt[1];
- }
- }
-
- private function parseMediaFeature() {
- $nodes = array();
-
- do{
- $e = $this->MatchFuncs(array('parseEntitiesKeyword','parseEntitiesVariable'));
- if( $e ){
- $nodes[] = $e;
- } elseif ($this->MatchChar('(')) {
- $p = $this->parseProperty();
- $e = $this->parseValue();
- if ($this->MatchChar(')')) {
- if ($p && $e) {
- $r = $this->NewObj7('Less_Tree_Rule', array( $p, $e, null, null, $this->pos, $this->env->currentFileInfo, true));
- $nodes[] = $this->NewObj1('Less_Tree_Paren',$r);
- } elseif ($e) {
- $nodes[] = $this->NewObj1('Less_Tree_Paren',$e);
- } else {
- return null;
- }
- } else
- return null;
- }
- } while ($e);
-
- if ($nodes) {
- return $this->NewObj1('Less_Tree_Expression',$nodes);
- }
- }
-
- private function parseMediaFeatures() {
- $features = array();
-
- do{
- $e = $this->parseMediaFeature();
- if( $e ){
- $features[] = $e;
- if (!$this->MatchChar(',')) break;
- }else{
- $e = $this->parseEntitiesVariable();
- if( $e ){
- $features[] = $e;
- if (!$this->MatchChar(',')) break;
- }
- }
- } while ($e);
-
- return $features ? $features : null;
- }
-
- private function parseMedia() {
- if( $this->MatchReg('/\\G@media/') ){
- $features = $this->parseMediaFeatures();
- $rules = $this->parseBlock();
-
- if( is_array($rules) ){
- return $this->NewObj4('Less_Tree_Media',array( $rules, $features, $this->pos, $this->env->currentFileInfo));
- }
- }
- }
-
-
- //
- // A CSS Directive
- //
- // @charset "utf-8";
- //
- private function parseDirective(){
-
- if( !$this->PeekChar('@') ){
- return;
- }
-
- $rules = null;
- $index = $this->pos;
- $hasBlock = true;
- $hasIdentifier = false;
- $hasExpression = false;
- $hasUnknown = false;
-
-
- $value = $this->MatchFuncs(array('parseImport','parseMedia'));
- if( $value ){
- return $value;
- }
-
- $this->save();
-
- $name = $this->MatchReg('/\\G@[a-z-]+/');
-
- if( !$name ) return;
- $name = $name[0];
-
-
- $nonVendorSpecificName = $name;
- $pos = strpos($name,'-', 2);
- if( $name[1] == '-' && $pos > 0 ){
- $nonVendorSpecificName = "@" . substr($name, $pos + 1);
- }
-
-
- switch( $nonVendorSpecificName ){
- /*
- case "@font-face":
- case "@viewport":
- case "@top-left":
- case "@top-left-corner":
- case "@top-center":
- case "@top-right":
- case "@top-right-corner":
- case "@bottom-left":
- case "@bottom-left-corner":
- case "@bottom-center":
- case "@bottom-right":
- case "@bottom-right-corner":
- case "@left-top":
- case "@left-middle":
- case "@left-bottom":
- case "@right-top":
- case "@right-middle":
- case "@right-bottom":
- hasBlock = true;
- break;
- */
- case "@charset":
- $hasIdentifier = true;
- $hasBlock = false;
- break;
- case "@namespace":
- $hasExpression = true;
- $hasBlock = false;
- break;
- case "@keyframes":
- $hasIdentifier = true;
- break;
- case "@host":
- case "@page":
- case "@document":
- case "@supports":
- $hasUnknown = true;
- break;
- }
-
- if( $hasIdentifier ){
- $value = $this->parseEntity();
- if( !$value ){
- $this->error("expected " . $name . " identifier");
- }
- } else if( $hasExpression ){
- $value = $this->parseExpression();
- if( !$value ){
- $this->error("expected " . $name. " expression");
- }
- } else if ($hasUnknown) {
-
- $value = $this->MatchReg('/\\G[^{;]+/');
- if( $value ){
- $value = $this->NewObj1('Less_Tree_Anonymous',trim($value[0]));
- }
- }
-
- if( $hasBlock ){
- $rules = $this->parseBlockRuleset();
- }
-
- if( $rules || (!$hasBlock && $value && $this->MatchChar(';'))) {
- $this->forget();
- return $this->NewObj5('Less_Tree_Directive',array($name, $value, $rules, $index, $this->env->currentFileInfo));
- }
-
- $this->restore();
- }
-
-
- //
- // A Value is a comma-delimited list of Expressions
- //
- // font-family: Baskerville, Georgia, serif;
- //
- // In a Rule, a Value represents everything after the `:`,
- // and before the `;`.
- //
- private function parseValue(){
- $expressions = array();
-
- do{
- $e = $this->parseExpression();
- if( $e ){
- $expressions[] = $e;
- if (! $this->MatchChar(',')) {
- break;
- }
- }
- }while($e);
-
- if( $expressions ){
- return $this->NewObj1('Less_Tree_Value',$expressions);
- }
- }
-
- private function parseImportant (){
- if( $this->PeekChar('!') && $this->MatchReg('/\\G! *important/') ){
- return ' !important';
- }
- }
-
- private function parseSub (){
-
- if( $this->MatchChar('(') ){
- $a = $this->parseAddition();
- if( $a ){
- $this->expectChar(')');
- return $this->NewObj2('Less_Tree_Expression',array( array($a), true) ); //instead of $e->parens = true so the value is cached
- }
- }
- }
-
-
- /**
- * Parses multiplication operation
- *
- * @return Less_Tree_Operation|null
- */
- function parseMultiplication(){
-
- $return = $m = $this->parseOperand();
- if( $return ){
- while( true ){
-
- $isSpaced = $this->isWhitespace( -1 );
-
- if( $this->PeekReg('/\\G\/[*\/]/') ){
- break;
- }
-
- $op = $this->MatchChar('/');
- if( !$op ){
- $op = $this->MatchChar('*');
- if( !$op ){
- break;
- }
- }
-
- $a = $this->parseOperand();
-
- if(!$a) { break; }
-
- $m->parensInOp = true;
- $a->parensInOp = true;
- $return = $this->NewObj3('Less_Tree_Operation',array( $op, array( $return, $a ), $isSpaced) );
- }
- }
- return $return;
-
- }
-
-
- /**
- * Parses an addition operation
- *
- * @return Less_Tree_Operation|null
- */
- private function parseAddition (){
-
- $return = $m = $this->parseMultiplication();
- if( $return ){
- while( true ){
-
- $isSpaced = $this->isWhitespace( -1 );
-
- $op = $this->MatchReg('/\\G[-+]\s+/');
- if( $op ){
- $op = $op[0];
- }else{
- if( !$isSpaced ){
- $op = $this->match(array('#+','#-'));
- }
- if( !$op ){
- break;
- }
- }
-
- $a = $this->parseMultiplication();
- if( !$a ){
- break;
- }
-
- $m->parensInOp = true;
- $a->parensInOp = true;
- $return = $this->NewObj3('Less_Tree_Operation',array($op, array($return, $a), $isSpaced));
- }
- }
-
- return $return;
- }
-
-
- /**
- * Parses the conditions
- *
- * @return Less_Tree_Condition|null
- */
- private function parseConditions() {
- $index = $this->pos;
- $return = $a = $this->parseCondition();
- if( $a ){
- while( true ){
- if( !$this->PeekReg('/\\G,\s*(not\s*)?\(/') || !$this->MatchChar(',') ){
- break;
- }
- $b = $this->parseCondition();
- if( !$b ){
- break;
- }
-
- $return = $this->NewObj4('Less_Tree_Condition',array('or', $return, $b, $index));
- }
- return $return;
- }
- }
-
- private function parseCondition() {
- $index = $this->pos;
- $negate = false;
- $c = null;
-
- if ($this->MatchReg('/\\Gnot/')) $negate = true;
- $this->expectChar('(');
- $a = $this->MatchFuncs(array('parseAddition','parseEntitiesKeyword','parseEntitiesQuoted'));
-
- if( $a ){
- $op = $this->MatchReg('/\\G(?:>=|<=|=<|[<=>])/');
- if( $op ){
- $b = $this->MatchFuncs(array('parseAddition','parseEntitiesKeyword','parseEntitiesQuoted'));
- if( $b ){
- $c = $this->NewObj5('Less_Tree_Condition',array($op[0], $a, $b, $index, $negate));
- } else {
- $this->Error('Unexpected expression');
- }
- } else {
- $k = $this->NewObj1('Less_Tree_Keyword','true');
- $c = $this->NewObj5('Less_Tree_Condition',array('=', $a, $k, $index, $negate));
- }
- $this->expectChar(')');
- return $this->MatchReg('/\\Gand/') ? $this->NewObj3('Less_Tree_Condition',array('and', $c, $this->parseCondition())) : $c;
- }
- }
-
- /**
- * An operand is anything that can be part of an operation,
- * such as a Color, or a Variable
- *
- */
- private function parseOperand (){
-
- $negate = false;
- $offset = $this->pos+1;
- if( $offset >= $this->input_len ){
- return;
- }
- $char = $this->input[$offset];
- if( $char === '@' || $char === '(' ){
- $negate = $this->MatchChar('-');
- }
-
- $o = $this->MatchFuncs(array('parseSub','parseEntitiesDimension','parseEntitiesColor','parseEntitiesVariable','parseEntitiesCall'));
-
- if( $negate ){
- $o->parensInOp = true;
- $o = $this->NewObj1('Less_Tree_Negative',$o);
- }
-
- return $o;
- }
-
-
- /**
- * Expressions either represent mathematical operations,
- * or white-space delimited Entities.
- *
- * 1px solid black
- * @var * 2
- *
- * @return Less_Tree_Expression|null
- */
- private function parseExpression (){
- $entities = array();
-
- do{
- $e = $this->MatchFuncs(array('parseAddition','parseEntity'));
- if( $e ){
- $entities[] = $e;
- // operations do not allow keyword "/" dimension (e.g. small/20px) so we support that here
- if( !$this->PeekReg('/\\G\/[\/*]/') ){
- $delim = $this->MatchChar('/');
- if( $delim ){
- $entities[] = $this->NewObj1('Less_Tree_Anonymous',$delim);
- }
- }
- }
- }while($e);
-
- if( $entities ){
- return $this->NewObj1('Less_Tree_Expression',$entities);
- }
- }
-
-
- /**
- * Parse a property
- * eg: 'min-width', 'orientation', etc
- *
- * @return string
- */
- private function parseProperty (){
- $name = $this->MatchReg('/\\G(\*?-?[_a-zA-Z0-9-]+)\s*:/');
- if( $name ){
- return $name[1];
- }
- }
-
-
- /**
- * Parse a rule property
- * eg: 'color', 'width', 'height', etc
- *
- * @return string
- */
- private function parseRuleProperty(){
- $offset = $this->pos;
- $name = array();
- $index = array();
- $length = 0;
-
-
- $this->rulePropertyMatch('/\\G(\*?)/', $offset, $length, $index, $name );
- while( $this->rulePropertyMatch('/\\G((?:[\w-]+)|(?:@\{[\w-]+\}))/', $offset, $length, $index, $name )); // !
-
- if( (count($name) > 1) && $this->rulePropertyMatch('/\\G\s*((?:\+_|\+)?)\s*:/', $offset, $length, $index, $name) ){
- // at last, we have the complete match now. move forward,
- // convert name particles to tree objects and return:
- $this->skipWhitespace($length);
-
- if( $name[0] === '' ){
- array_shift($name);
- array_shift($index);
- }
- foreach($name as $k => $s ){
- if( !$s || $s[0] !== '@' ){
- $name[$k] = $this->NewObj1('Less_Tree_Keyword',$s);
- }else{
- $name[$k] = $this->NewObj3('Less_Tree_Variable',array('@' . substr($s,2,-1), $index[$k], $this->env->currentFileInfo));
- }
- }
- return $name;
- }
-
-
- }
-
- private function rulePropertyMatch( $re, &$offset, &$length, &$index, &$name ){
- preg_match($re, $this->input, $a, 0, $offset);
- if( $a ){
- $index[] = $this->pos + $length;
- $length += strlen($a[0]);
- $offset += strlen($a[0]);
- $name[] = $a[1];
- return true;
- }
- }
-
- public static function serializeVars( $vars ){
- $s = '';
-
- foreach($vars as $name => $value){
- $s .= (($name[0] === '@') ? '' : '@') . $name .': '. $value . ((substr($value,-1) === ';') ? '' : ';');
- }
-
- return $s;
- }
-
-
- /**
- * Some versions of php have trouble with method_exists($a,$b) if $a is not an object
- *
- * @param string $b
- */
- public static function is_method($a,$b){
- return is_object($a) && method_exists($a,$b);
- }
-
-
- /**
- * Round numbers similarly to javascript
- * eg: 1.499999 to 1 instead of 2
- *
- */
- public static function round($i, $precision = 0){
-
- $precision = pow(10,$precision);
- $i = $i*$precision;
-
- $ceil = ceil($i);
- $floor = floor($i);
- if( ($ceil - $i) <= ($i - $floor) ){
- return $ceil/$precision;
- }else{
- return $floor/$precision;
- }
- }
-
-
- /**
- * Create Less_Tree_* objects and optionally generate a cache string
- *
- * @return mixed
- */
- public function NewObj0($class){
- $obj = new $class();
- if( $this->CacheEnabled() ){
- $obj->cache_string = ' new '.$class.'()';
- }
- return $obj;
- }
-
- public function NewObj1($class, $arg){
- $obj = new $class( $arg );
- if( $this->CacheEnabled() ){
- $obj->cache_string = ' new '.$class.'('.Less_Parser::ArgString($arg).')';
- }
- return $obj;
- }
-
- public function NewObj2($class, $args){
- $obj = new $class( $args[0], $args[1] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- public function NewObj3($class, $args){
- $obj = new $class( $args[0], $args[1], $args[2] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- public function NewObj4($class, $args){
- $obj = new $class( $args[0], $args[1], $args[2], $args[3] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- public function NewObj5($class, $args){
- $obj = new $class( $args[0], $args[1], $args[2], $args[3], $args[4] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- public function NewObj6($class, $args){
- $obj = new $class( $args[0], $args[1], $args[2], $args[3], $args[4], $args[5] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- public function NewObj7($class, $args){
- $obj = new $class( $args[0], $args[1], $args[2], $args[3], $args[4], $args[5], $args[6] );
- if( $this->CacheEnabled() ){
- $this->ObjCache( $obj, $class, $args);
- }
- return $obj;
- }
-
- //caching
- public function ObjCache($obj, $class, $args=array()){
- $obj->cache_string = ' new '.$class.'('. self::ArgCache($args).')';
- }
-
- public function ArgCache($args){
- return implode(',',array_map( array('Less_Parser','ArgString'),$args));
- }
-
-
- /**
- * Convert an argument to a string for use in the parser cache
- *
- * @return string
- */
- public static function ArgString($arg){
-
- $type = gettype($arg);
-
- if( $type === 'object'){
- $string = $arg->cache_string;
- unset($arg->cache_string);
- return $string;
-
- }elseif( $type === 'array' ){
- $string = ' Array(';
- foreach($arg as $k => $a){
- $string .= var_export($k,true).' => '.self::ArgString($a).',';
- }
- return $string . ')';
- }
-
- return var_export($arg,true);
- }
-
- public function Error($msg){
- throw new Less_Exception_Parser($msg, null, $this->furthest, $this->env->currentFileInfo);
- }
-
- public static function WinPath($path){
- return str_replace('\\', '/', $path);
- }
-
- public static function AbsPath($path, $winPath = false){
- if (strpos($path, '//') !== false && preg_match('_^(https?:)?//\\w+(\\.\\w+)+/\\w+_i', $path)) {
- return $winPath ? '' : false;
- } else {
- $path = realpath($path);
- if ($winPath) {
- $path = self::WinPath($path);
- }
- return $path;
- }
- }
-
- public function CacheEnabled(){
- return (Less_Parser::$options['cache_method'] && (Less_Cache::$cache_dir || (Less_Parser::$options['cache_method'] == 'callback')));
- }
-
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-31 13:56:03 +0000