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