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-rw-r--r--lib/less.php/Environment.php166
1 files changed, 166 insertions, 0 deletions
diff --git a/lib/less.php/Environment.php b/lib/less.php/Environment.php
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+++ 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);
+ }
+
+}