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Diffstat (limited to '')
-rw-r--r-- | lib/less.php/Environment.php | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/lib/less.php/Environment.php b/lib/less.php/Environment.php new file mode 100644 index 0000000..b220301 --- /dev/null +++ b/lib/less.php/Environment.php @@ -0,0 +1,166 @@ +<?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); + } + +} |