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<?php /** * Environment * * @package Less * @subpackage environment */ class Less_Environment { // public $paths = array(); // option - unmodified - paths to search for imports on //public static $files = array(); // list of files that have been imported, used for import-once //public $rootpath; // option - rootpath to append to URL's //public static $strictImports = null; // option - //public $insecure; // option - whether to allow imports from insecure ssl hosts //public $processImports; // option - whether to process imports. if false then imports will not be imported //public $javascriptEnabled; // option - whether JavaScript is enabled. if undefined, defaults to true //public $useFileCache; // browser only - whether to use the per file session cache public $currentFileInfo; // information about the current file - for error reporting and importing and making urls relative etc. public $importMultiple = false; // whether we are currently importing multiple copies /** * @var array */ public $frames = array(); /** * @var array */ public $mediaBlocks = array(); /** * @var array */ public $mediaPath = array(); public static $parensStack = 0; public static $tabLevel = 0; public static $lastRule = false; public static $_outputMap; public static $mixin_stack = 0; /** * @var array */ public $functions = array(); public function Init() { self::$parensStack = 0; self::$tabLevel = 0; self::$lastRule = false; self::$mixin_stack = 0; if ( Less_Parser::$options['compress'] ) { Less_Environment::$_outputMap = array( ',' => ',', ': ' => ':', '' => '', ' ' => ' ', ':' => ' :', '+' => '+', '~' => '~', '>' => '>', '|' => '|', '^' => '^', '^^' => '^^' ); } else { Less_Environment::$_outputMap = array( ',' => ', ', ': ' => ': ', '' => '', ' ' => ' ', ':' => ' :', '+' => ' + ', '~' => ' ~ ', '>' => ' > ', '|' => '|', '^' => ' ^ ', '^^' => ' ^^ ' ); } } public function copyEvalEnv( $frames = array() ) { $new_env = new Less_Environment(); $new_env->frames = $frames; return $new_env; } public static function isMathOn() { return !Less_Parser::$options['strictMath'] || Less_Environment::$parensStack; } public static function isPathRelative( $path ) { return !preg_match( '/^(?:[a-z-]+:|\/)/', $path ); } /** * Canonicalize a path by resolving references to '/./', '/../' * Does not remove leading "../" * @param string path or url * @return string Canonicalized path * */ public static function normalizePath( $path ) { $segments = explode( '/', $path ); $segments = array_reverse( $segments ); $path = array(); $path_len = 0; while ( $segments ) { $segment = array_pop( $segments ); switch ( $segment ) { case '.': break; case '..': if ( !$path_len || ( $path[$path_len - 1] === '..' ) ) { $path[] = $segment; $path_len++; } else { array_pop( $path ); $path_len--; } break; default: $path[] = $segment; $path_len++; break; } } return implode( '/', $path ); } public function unshiftFrame( $frame ) { array_unshift( $this->frames, $frame ); } public function shiftFrame() { return array_shift( $this->frames ); } }
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