update less.php to PHP 7.x compatible fork

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);
+	}
+
+}