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anikendra |
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<?php
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/**
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* lessphp v0.4.0
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* http://leafo.net/lessphp
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*
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* LESS css compiler, adapted from http://lesscss.org
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*
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* Copyright 2012, Leaf Corcoran <leafot@gmail.com>
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* Licensed under MIT or GPLv3, see LICENSE
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*/
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/**
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* The less compiler and parser.
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*
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* Converting LESS to CSS is a three stage process. The incoming file is parsed
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* by `lessc_parser` into a syntax tree, then it is compiled into another tree
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* representing the CSS structure by `lessc`. The CSS tree is fed into a
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* formatter, like `lessc_formatter` which then outputs CSS as a string.
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*
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* During the first compile, all values are *reduced*, which means that their
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* types are brought to the lowest form before being dump as strings. This
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* handles math equations, variable dereferences, and the like.
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*
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* The `parse` function of `lessc` is the entry point.
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*
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* In summary:
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*
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* The `lessc` class creates an intstance of the parser, feeds it LESS code,
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* then transforms the resulting tree to a CSS tree. This class also holds the
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* evaluation context, such as all available mixins and variables at any given
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* time.
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*
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* The `lessc_parser` class is only concerned with parsing its input.
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*
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* The `lessc_formatter` takes a CSS tree, and dumps it to a formatted string,
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* handling things like indentation.
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*/
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class lessc {
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static public $VERSION = "v0.4.0";
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static protected $TRUE = array("keyword", "true");
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static protected $FALSE = array("keyword", "false");
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protected $libFunctions = array();
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protected $registeredVars = array();
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protected $preserveComments = false;
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public $vPrefix = '@'; // prefix of abstract properties
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public $mPrefix = '$'; // prefix of abstract blocks
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public $parentSelector = '&';
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public $importDisabled = false;
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public $importDir = '';
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protected $numberPrecision = null;
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protected $allParsedFiles = array();
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// set to the parser that generated the current line when compiling
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// so we know how to create error messages
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protected $sourceParser = null;
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protected $sourceLoc = null;
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static public $defaultValue = array("keyword", "");
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static protected $nextImportId = 0; // uniquely identify imports
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// attempts to find the path of an import url, returns null for css files
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protected function findImport($url) {
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foreach ((array)$this->importDir as $dir) {
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$full = $dir.(substr($dir, -1) != '/' ? '/' : '').$url;
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if ($this->fileExists($file = $full.'.less') || $this->fileExists($file = $full)) {
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return $file;
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}
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}
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return null;
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}
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protected function fileExists($name) {
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return is_file($name);
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}
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static public function compressList($items, $delim) {
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if (!isset($items[1]) && isset($items[0])) return $items[0];
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else return array('list', $delim, $items);
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}
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static public function preg_quote($what) {
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return preg_quote($what, '/');
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}
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protected function tryImport($importPath, $parentBlock, $out) {
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if ($importPath[0] == "function" && $importPath[1] == "url") {
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$importPath = $this->flattenList($importPath[2]);
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}
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$str = $this->coerceString($importPath);
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if ($str === null) return false;
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$url = $this->compileValue($this->lib_e($str));
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// don't import if it ends in css
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if (substr_compare($url, '.css', -4, 4) === 0) return false;
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$realPath = $this->findImport($url);
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if ($realPath === null) return false;
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if ($this->importDisabled) {
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return array(false, "/* import disabled */");
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}
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if (isset($this->allParsedFiles[realpath($realPath)])) {
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return array(false, null);
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}
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$this->addParsedFile($realPath);
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$parser = $this->makeParser($realPath);
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$root = $parser->parse(file_get_contents($realPath));
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// set the parents of all the block props
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foreach ($root->props as $prop) {
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if ($prop[0] == "block") {
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$prop[1]->parent = $parentBlock;
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}
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}
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// copy mixins into scope, set their parents
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// bring blocks from import into current block
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// TODO: need to mark the source parser these came from this file
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foreach ($root->children as $childName => $child) {
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if (isset($parentBlock->children[$childName])) {
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$parentBlock->children[$childName] = array_merge(
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$parentBlock->children[$childName],
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$child);
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} else {
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$parentBlock->children[$childName] = $child;
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}
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}
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$pi = pathinfo($realPath);
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$dir = $pi["dirname"];
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list($top, $bottom) = $this->sortProps($root->props, true);
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$this->compileImportedProps($top, $parentBlock, $out, $parser, $dir);
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return array(true, $bottom, $parser, $dir);
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}
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protected function compileImportedProps($props, $block, $out, $sourceParser, $importDir) {
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$oldSourceParser = $this->sourceParser;
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$oldImport = $this->importDir;
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// TODO: this is because the importDir api is stupid
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$this->importDir = (array)$this->importDir;
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array_unshift($this->importDir, $importDir);
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foreach ($props as $prop) {
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$this->compileProp($prop, $block, $out);
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}
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$this->importDir = $oldImport;
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$this->sourceParser = $oldSourceParser;
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}
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/**
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* Recursively compiles a block.
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*
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* A block is analogous to a CSS block in most cases. A single LESS document
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* is encapsulated in a block when parsed, but it does not have parent tags
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* so all of it's children appear on the root level when compiled.
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*
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* Blocks are made up of props and children.
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*
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* Props are property instructions, array tuples which describe an action
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* to be taken, eg. write a property, set a variable, mixin a block.
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*
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* The children of a block are just all the blocks that are defined within.
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* This is used to look up mixins when performing a mixin.
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*
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* Compiling the block involves pushing a fresh environment on the stack,
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* and iterating through the props, compiling each one.
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*
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* See lessc::compileProp()
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*
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*/
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protected function compileBlock($block) {
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switch ($block->type) {
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case "root":
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$this->compileRoot($block);
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break;
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case null:
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$this->compileCSSBlock($block);
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break;
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case "media":
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$this->compileMedia($block);
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break;
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case "directive":
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$name = "@" . $block->name;
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if (!empty($block->value)) {
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$name .= " " . $this->compileValue($this->reduce($block->value));
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}
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$this->compileNestedBlock($block, array($name));
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break;
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default:
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$this->throwError("unknown block type: $block->type\n");
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}
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}
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protected function compileCSSBlock($block) {
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$env = $this->pushEnv();
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$selectors = $this->compileSelectors($block->tags);
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$env->selectors = $this->multiplySelectors($selectors);
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$out = $this->makeOutputBlock(null, $env->selectors);
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$this->scope->children[] = $out;
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$this->compileProps($block, $out);
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$block->scope = $env; // mixins carry scope with them!
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$this->popEnv();
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}
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protected function compileMedia($media) {
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$env = $this->pushEnv($media);
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$parentScope = $this->mediaParent($this->scope);
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$query = $this->compileMediaQuery($this->multiplyMedia($env));
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$this->scope = $this->makeOutputBlock($media->type, array($query));
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$parentScope->children[] = $this->scope;
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$this->compileProps($media, $this->scope);
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if (count($this->scope->lines) > 0) {
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$orphanSelelectors = $this->findClosestSelectors();
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if (!is_null($orphanSelelectors)) {
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$orphan = $this->makeOutputBlock(null, $orphanSelelectors);
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$orphan->lines = $this->scope->lines;
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array_unshift($this->scope->children, $orphan);
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$this->scope->lines = array();
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}
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}
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$this->scope = $this->scope->parent;
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$this->popEnv();
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}
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protected function mediaParent($scope) {
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while (!empty($scope->parent)) {
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if (!empty($scope->type) && $scope->type != "media") {
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break;
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}
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$scope = $scope->parent;
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}
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return $scope;
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}
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protected function compileNestedBlock($block, $selectors) {
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$this->pushEnv($block);
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$this->scope = $this->makeOutputBlock($block->type, $selectors);
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$this->scope->parent->children[] = $this->scope;
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$this->compileProps($block, $this->scope);
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$this->scope = $this->scope->parent;
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$this->popEnv();
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}
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protected function compileRoot($root) {
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$this->pushEnv();
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$this->scope = $this->makeOutputBlock($root->type);
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$this->compileProps($root, $this->scope);
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$this->popEnv();
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}
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protected function compileProps($block, $out) {
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foreach ($this->sortProps($block->props) as $prop) {
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$this->compileProp($prop, $block, $out);
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}
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$out->lines = array_values(array_unique($out->lines));
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}
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protected function sortProps($props, $split = false) {
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$vars = array();
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$imports = array();
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$other = array();
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foreach ($props as $prop) {
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switch ($prop[0]) {
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case "assign":
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if (isset($prop[1][0]) && $prop[1][0] == $this->vPrefix) {
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$vars[] = $prop;
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} else {
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$other[] = $prop;
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}
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break;
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case "import":
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$id = self::$nextImportId++;
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$prop[] = $id;
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$imports[] = $prop;
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$other[] = array("import_mixin", $id);
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break;
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default:
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$other[] = $prop;
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}
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}
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if ($split) {
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return array(array_merge($vars, $imports), $other);
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} else {
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return array_merge($vars, $imports, $other);
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}
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}
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protected function compileMediaQuery($queries) {
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$compiledQueries = array();
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foreach ($queries as $query) {
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$parts = array();
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foreach ($query as $q) {
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switch ($q[0]) {
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case "mediaType":
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$parts[] = implode(" ", array_slice($q, 1));
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break;
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case "mediaExp":
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if (isset($q[2])) {
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$parts[] = "($q[1]: " .
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$this->compileValue($this->reduce($q[2])) . ")";
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} else {
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$parts[] = "($q[1])";
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}
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break;
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case "variable":
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$parts[] = $this->compileValue($this->reduce($q));
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break;
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}
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}
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if (count($parts) > 0) {
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$compiledQueries[] = implode(" and ", $parts);
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}
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}
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$out = "@media";
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if (!empty($parts)) {
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$out .= " " .
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implode($this->formatter->selectorSeparator, $compiledQueries);
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}
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return $out;
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}
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protected function multiplyMedia($env, $childQueries = null) {
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359 |
if (is_null($env) ||
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!empty($env->block->type) && $env->block->type != "media")
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{
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return $childQueries;
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}
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364 |
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// plain old block, skip
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366 |
if (empty($env->block->type)) {
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return $this->multiplyMedia($env->parent, $childQueries);
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}
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$out = array();
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$queries = $env->block->queries;
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372 |
if (is_null($childQueries)) {
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$out = $queries;
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|
|
374 |
} else {
|
|
|
375 |
foreach ($queries as $parent) {
|
|
|
376 |
foreach ($childQueries as $child) {
|
|
|
377 |
$out[] = array_merge($parent, $child);
|
|
|
378 |
}
|
|
|
379 |
}
|
|
|
380 |
}
|
|
|
381 |
|
|
|
382 |
return $this->multiplyMedia($env->parent, $out);
|
|
|
383 |
}
|
|
|
384 |
|
|
|
385 |
protected function expandParentSelectors(&$tag, $replace) {
|
|
|
386 |
$parts = explode("$&$", $tag);
|
|
|
387 |
$count = 0;
|
|
|
388 |
foreach ($parts as &$part) {
|
|
|
389 |
$part = str_replace($this->parentSelector, $replace, $part, $c);
|
|
|
390 |
$count += $c;
|
|
|
391 |
}
|
|
|
392 |
$tag = implode($this->parentSelector, $parts);
|
|
|
393 |
return $count;
|
|
|
394 |
}
|
|
|
395 |
|
|
|
396 |
protected function findClosestSelectors() {
|
|
|
397 |
$env = $this->env;
|
|
|
398 |
$selectors = null;
|
|
|
399 |
while ($env !== null) {
|
|
|
400 |
if (isset($env->selectors)) {
|
|
|
401 |
$selectors = $env->selectors;
|
|
|
402 |
break;
|
|
|
403 |
}
|
|
|
404 |
$env = $env->parent;
|
|
|
405 |
}
|
|
|
406 |
|
|
|
407 |
return $selectors;
|
|
|
408 |
}
|
|
|
409 |
|
|
|
410 |
|
|
|
411 |
// multiply $selectors against the nearest selectors in env
|
|
|
412 |
protected function multiplySelectors($selectors) {
|
|
|
413 |
// find parent selectors
|
|
|
414 |
|
|
|
415 |
$parentSelectors = $this->findClosestSelectors();
|
|
|
416 |
if (is_null($parentSelectors)) {
|
|
|
417 |
// kill parent reference in top level selector
|
|
|
418 |
foreach ($selectors as &$s) {
|
|
|
419 |
$this->expandParentSelectors($s, "");
|
|
|
420 |
}
|
|
|
421 |
|
|
|
422 |
return $selectors;
|
|
|
423 |
}
|
|
|
424 |
|
|
|
425 |
$out = array();
|
|
|
426 |
foreach ($parentSelectors as $parent) {
|
|
|
427 |
foreach ($selectors as $child) {
|
|
|
428 |
$count = $this->expandParentSelectors($child, $parent);
|
|
|
429 |
|
|
|
430 |
// don't prepend the parent tag if & was used
|
|
|
431 |
if ($count > 0) {
|
|
|
432 |
$out[] = trim($child);
|
|
|
433 |
} else {
|
|
|
434 |
$out[] = trim($parent . ' ' . $child);
|
|
|
435 |
}
|
|
|
436 |
}
|
|
|
437 |
}
|
|
|
438 |
|
|
|
439 |
return $out;
|
|
|
440 |
}
|
|
|
441 |
|
|
|
442 |
// reduces selector expressions
|
|
|
443 |
protected function compileSelectors($selectors) {
|
|
|
444 |
$out = array();
|
|
|
445 |
|
|
|
446 |
foreach ($selectors as $s) {
|
|
|
447 |
if (is_array($s)) {
|
|
|
448 |
list(, $value) = $s;
|
|
|
449 |
$out[] = trim($this->compileValue($this->reduce($value)));
|
|
|
450 |
} else {
|
|
|
451 |
$out[] = $s;
|
|
|
452 |
}
|
|
|
453 |
}
|
|
|
454 |
|
|
|
455 |
return $out;
|
|
|
456 |
}
|
|
|
457 |
|
|
|
458 |
protected function eq($left, $right) {
|
|
|
459 |
return $left == $right;
|
|
|
460 |
}
|
|
|
461 |
|
|
|
462 |
protected function patternMatch($block, $orderedArgs, $keywordArgs) {
|
|
|
463 |
// match the guards if it has them
|
|
|
464 |
// any one of the groups must have all its guards pass for a match
|
|
|
465 |
if (!empty($block->guards)) {
|
|
|
466 |
$groupPassed = false;
|
|
|
467 |
foreach ($block->guards as $guardGroup) {
|
|
|
468 |
foreach ($guardGroup as $guard) {
|
|
|
469 |
$this->pushEnv();
|
|
|
470 |
$this->zipSetArgs($block->args, $orderedArgs, $keywordArgs);
|
|
|
471 |
|
|
|
472 |
$negate = false;
|
|
|
473 |
if ($guard[0] == "negate") {
|
|
|
474 |
$guard = $guard[1];
|
|
|
475 |
$negate = true;
|
|
|
476 |
}
|
|
|
477 |
|
|
|
478 |
$passed = $this->reduce($guard) == self::$TRUE;
|
|
|
479 |
if ($negate) $passed = !$passed;
|
|
|
480 |
|
|
|
481 |
$this->popEnv();
|
|
|
482 |
|
|
|
483 |
if ($passed) {
|
|
|
484 |
$groupPassed = true;
|
|
|
485 |
} else {
|
|
|
486 |
$groupPassed = false;
|
|
|
487 |
break;
|
|
|
488 |
}
|
|
|
489 |
}
|
|
|
490 |
|
|
|
491 |
if ($groupPassed) break;
|
|
|
492 |
}
|
|
|
493 |
|
|
|
494 |
if (!$groupPassed) {
|
|
|
495 |
return false;
|
|
|
496 |
}
|
|
|
497 |
}
|
|
|
498 |
|
|
|
499 |
if (empty($block->args)) {
|
|
|
500 |
return $block->isVararg || empty($orderedArgs) && empty($keywordArgs);
|
|
|
501 |
}
|
|
|
502 |
|
|
|
503 |
$remainingArgs = $block->args;
|
|
|
504 |
if ($keywordArgs) {
|
|
|
505 |
$remainingArgs = array();
|
|
|
506 |
foreach ($block->args as $arg) {
|
|
|
507 |
if ($arg[0] == "arg" && isset($keywordArgs[$arg[1]])) {
|
|
|
508 |
continue;
|
|
|
509 |
}
|
|
|
510 |
|
|
|
511 |
$remainingArgs[] = $arg;
|
|
|
512 |
}
|
|
|
513 |
}
|
|
|
514 |
|
|
|
515 |
$i = -1; // no args
|
|
|
516 |
// try to match by arity or by argument literal
|
|
|
517 |
foreach ($remainingArgs as $i => $arg) {
|
|
|
518 |
switch ($arg[0]) {
|
|
|
519 |
case "lit":
|
|
|
520 |
if (empty($orderedArgs[$i]) || !$this->eq($arg[1], $orderedArgs[$i])) {
|
|
|
521 |
return false;
|
|
|
522 |
}
|
|
|
523 |
break;
|
|
|
524 |
case "arg":
|
|
|
525 |
// no arg and no default value
|
|
|
526 |
if (!isset($orderedArgs[$i]) && !isset($arg[2])) {
|
|
|
527 |
return false;
|
|
|
528 |
}
|
|
|
529 |
break;
|
|
|
530 |
case "rest":
|
|
|
531 |
$i--; // rest can be empty
|
|
|
532 |
break 2;
|
|
|
533 |
}
|
|
|
534 |
}
|
|
|
535 |
|
|
|
536 |
if ($block->isVararg) {
|
|
|
537 |
return true; // not having enough is handled above
|
|
|
538 |
} else {
|
|
|
539 |
$numMatched = $i + 1;
|
|
|
540 |
// greater than becuase default values always match
|
|
|
541 |
return $numMatched >= count($orderedArgs);
|
|
|
542 |
}
|
|
|
543 |
}
|
|
|
544 |
|
|
|
545 |
protected function patternMatchAll($blocks, $orderedArgs, $keywordArgs, $skip=array()) {
|
|
|
546 |
$matches = null;
|
|
|
547 |
foreach ($blocks as $block) {
|
|
|
548 |
// skip seen blocks that don't have arguments
|
|
|
549 |
if (isset($skip[$block->id]) && !isset($block->args)) {
|
|
|
550 |
continue;
|
|
|
551 |
}
|
|
|
552 |
|
|
|
553 |
if ($this->patternMatch($block, $orderedArgs, $keywordArgs)) {
|
|
|
554 |
$matches[] = $block;
|
|
|
555 |
}
|
|
|
556 |
}
|
|
|
557 |
|
|
|
558 |
return $matches;
|
|
|
559 |
}
|
|
|
560 |
|
|
|
561 |
// attempt to find blocks matched by path and args
|
|
|
562 |
protected function findBlocks($searchIn, $path, $orderedArgs, $keywordArgs, $seen=array()) {
|
|
|
563 |
if ($searchIn == null) return null;
|
|
|
564 |
if (isset($seen[$searchIn->id])) return null;
|
|
|
565 |
$seen[$searchIn->id] = true;
|
|
|
566 |
|
|
|
567 |
$name = $path[0];
|
|
|
568 |
|
|
|
569 |
if (isset($searchIn->children[$name])) {
|
|
|
570 |
$blocks = $searchIn->children[$name];
|
|
|
571 |
if (count($path) == 1) {
|
|
|
572 |
$matches = $this->patternMatchAll($blocks, $orderedArgs, $keywordArgs, $seen);
|
|
|
573 |
if (!empty($matches)) {
|
|
|
574 |
// This will return all blocks that match in the closest
|
|
|
575 |
// scope that has any matching block, like lessjs
|
|
|
576 |
return $matches;
|
|
|
577 |
}
|
|
|
578 |
} else {
|
|
|
579 |
$matches = array();
|
|
|
580 |
foreach ($blocks as $subBlock) {
|
|
|
581 |
$subMatches = $this->findBlocks($subBlock,
|
|
|
582 |
array_slice($path, 1), $orderedArgs, $keywordArgs, $seen);
|
|
|
583 |
|
|
|
584 |
if (!is_null($subMatches)) {
|
|
|
585 |
foreach ($subMatches as $sm) {
|
|
|
586 |
$matches[] = $sm;
|
|
|
587 |
}
|
|
|
588 |
}
|
|
|
589 |
}
|
|
|
590 |
|
|
|
591 |
return count($matches) > 0 ? $matches : null;
|
|
|
592 |
}
|
|
|
593 |
}
|
|
|
594 |
if ($searchIn->parent === $searchIn) return null;
|
|
|
595 |
return $this->findBlocks($searchIn->parent, $path, $orderedArgs, $keywordArgs, $seen);
|
|
|
596 |
}
|
|
|
597 |
|
|
|
598 |
// sets all argument names in $args to either the default value
|
|
|
599 |
// or the one passed in through $values
|
|
|
600 |
protected function zipSetArgs($args, $orderedValues, $keywordValues) {
|
|
|
601 |
$assignedValues = array();
|
|
|
602 |
|
|
|
603 |
$i = 0;
|
|
|
604 |
foreach ($args as $a) {
|
|
|
605 |
if ($a[0] == "arg") {
|
|
|
606 |
if (isset($keywordValues[$a[1]])) {
|
|
|
607 |
// has keyword arg
|
|
|
608 |
$value = $keywordValues[$a[1]];
|
|
|
609 |
} elseif (isset($orderedValues[$i])) {
|
|
|
610 |
// has ordered arg
|
|
|
611 |
$value = $orderedValues[$i];
|
|
|
612 |
$i++;
|
|
|
613 |
} elseif (isset($a[2])) {
|
|
|
614 |
// has default value
|
|
|
615 |
$value = $a[2];
|
|
|
616 |
} else {
|
|
|
617 |
$this->throwError("Failed to assign arg " . $a[1]);
|
|
|
618 |
$value = null; // :(
|
|
|
619 |
}
|
|
|
620 |
|
|
|
621 |
$value = $this->reduce($value);
|
|
|
622 |
$this->set($a[1], $value);
|
|
|
623 |
$assignedValues[] = $value;
|
|
|
624 |
} else {
|
|
|
625 |
// a lit
|
|
|
626 |
$i++;
|
|
|
627 |
}
|
|
|
628 |
}
|
|
|
629 |
|
|
|
630 |
// check for a rest
|
|
|
631 |
$last = end($args);
|
|
|
632 |
if ($last[0] == "rest") {
|
|
|
633 |
$rest = array_slice($orderedValues, count($args) - 1);
|
|
|
634 |
$this->set($last[1], $this->reduce(array("list", " ", $rest)));
|
|
|
635 |
}
|
|
|
636 |
|
|
|
637 |
// wow is this the only true use of PHP's + operator for arrays?
|
|
|
638 |
$this->env->arguments = $assignedValues + $orderedValues;
|
|
|
639 |
}
|
|
|
640 |
|
|
|
641 |
// compile a prop and update $lines or $blocks appropriately
|
|
|
642 |
protected function compileProp($prop, $block, $out) {
|
|
|
643 |
// set error position context
|
|
|
644 |
$this->sourceLoc = isset($prop[-1]) ? $prop[-1] : -1;
|
|
|
645 |
|
|
|
646 |
switch ($prop[0]) {
|
|
|
647 |
case 'assign':
|
|
|
648 |
list(, $name, $value) = $prop;
|
|
|
649 |
if ($name[0] == $this->vPrefix) {
|
|
|
650 |
$this->set($name, $value);
|
|
|
651 |
} else {
|
|
|
652 |
$out->lines[] = $this->formatter->property($name,
|
|
|
653 |
$this->compileValue($this->reduce($value)));
|
|
|
654 |
}
|
|
|
655 |
break;
|
|
|
656 |
case 'block':
|
|
|
657 |
list(, $child) = $prop;
|
|
|
658 |
$this->compileBlock($child);
|
|
|
659 |
break;
|
|
|
660 |
case 'mixin':
|
|
|
661 |
list(, $path, $args, $suffix) = $prop;
|
|
|
662 |
|
|
|
663 |
$orderedArgs = array();
|
|
|
664 |
$keywordArgs = array();
|
|
|
665 |
foreach ((array)$args as $arg) {
|
|
|
666 |
$argval = null;
|
|
|
667 |
switch ($arg[0]) {
|
|
|
668 |
case "arg":
|
|
|
669 |
if (!isset($arg[2])) {
|
|
|
670 |
$orderedArgs[] = $this->reduce(array("variable", $arg[1]));
|
|
|
671 |
} else {
|
|
|
672 |
$keywordArgs[$arg[1]] = $this->reduce($arg[2]);
|
|
|
673 |
}
|
|
|
674 |
break;
|
|
|
675 |
|
|
|
676 |
case "lit":
|
|
|
677 |
$orderedArgs[] = $this->reduce($arg[1]);
|
|
|
678 |
break;
|
|
|
679 |
default:
|
|
|
680 |
$this->throwError("Unknown arg type: " . $arg[0]);
|
|
|
681 |
}
|
|
|
682 |
}
|
|
|
683 |
|
|
|
684 |
$mixins = $this->findBlocks($block, $path, $orderedArgs, $keywordArgs);
|
|
|
685 |
|
|
|
686 |
if ($mixins === null) {
|
|
|
687 |
// fwrite(STDERR,"failed to find block: ".implode(" > ", $path)."\n");
|
|
|
688 |
break; // throw error here??
|
|
|
689 |
}
|
|
|
690 |
|
|
|
691 |
foreach ($mixins as $mixin) {
|
|
|
692 |
if ($mixin === $block && !$orderedArgs) {
|
|
|
693 |
continue;
|
|
|
694 |
}
|
|
|
695 |
|
|
|
696 |
$haveScope = false;
|
|
|
697 |
if (isset($mixin->parent->scope)) {
|
|
|
698 |
$haveScope = true;
|
|
|
699 |
$mixinParentEnv = $this->pushEnv();
|
|
|
700 |
$mixinParentEnv->storeParent = $mixin->parent->scope;
|
|
|
701 |
}
|
|
|
702 |
|
|
|
703 |
$haveArgs = false;
|
|
|
704 |
if (isset($mixin->args)) {
|
|
|
705 |
$haveArgs = true;
|
|
|
706 |
$this->pushEnv();
|
|
|
707 |
$this->zipSetArgs($mixin->args, $orderedArgs, $keywordArgs);
|
|
|
708 |
}
|
|
|
709 |
|
|
|
710 |
$oldParent = $mixin->parent;
|
|
|
711 |
if ($mixin != $block) $mixin->parent = $block;
|
|
|
712 |
|
|
|
713 |
foreach ($this->sortProps($mixin->props) as $subProp) {
|
|
|
714 |
if ($suffix !== null &&
|
|
|
715 |
$subProp[0] == "assign" &&
|
|
|
716 |
is_string($subProp[1]) &&
|
|
|
717 |
$subProp[1]{0} != $this->vPrefix)
|
|
|
718 |
{
|
|
|
719 |
$subProp[2] = array(
|
|
|
720 |
'list', ' ',
|
|
|
721 |
array($subProp[2], array('keyword', $suffix))
|
|
|
722 |
);
|
|
|
723 |
}
|
|
|
724 |
|
|
|
725 |
$this->compileProp($subProp, $mixin, $out);
|
|
|
726 |
}
|
|
|
727 |
|
|
|
728 |
$mixin->parent = $oldParent;
|
|
|
729 |
|
|
|
730 |
if ($haveArgs) $this->popEnv();
|
|
|
731 |
if ($haveScope) $this->popEnv();
|
|
|
732 |
}
|
|
|
733 |
|
|
|
734 |
break;
|
|
|
735 |
case 'raw':
|
|
|
736 |
$out->lines[] = $prop[1];
|
|
|
737 |
break;
|
|
|
738 |
case "directive":
|
|
|
739 |
list(, $name, $value) = $prop;
|
|
|
740 |
$out->lines[] = "@$name " . $this->compileValue($this->reduce($value)).';';
|
|
|
741 |
break;
|
|
|
742 |
case "comment":
|
|
|
743 |
$out->lines[] = $prop[1];
|
|
|
744 |
break;
|
|
|
745 |
case "import";
|
|
|
746 |
list(, $importPath, $importId) = $prop;
|
|
|
747 |
$importPath = $this->reduce($importPath);
|
|
|
748 |
|
|
|
749 |
if (!isset($this->env->imports)) {
|
|
|
750 |
$this->env->imports = array();
|
|
|
751 |
}
|
|
|
752 |
|
|
|
753 |
$result = $this->tryImport($importPath, $block, $out);
|
|
|
754 |
|
|
|
755 |
$this->env->imports[$importId] = $result === false ?
|
|
|
756 |
array(false, "@import " . $this->compileValue($importPath).";") :
|
|
|
757 |
$result;
|
|
|
758 |
|
|
|
759 |
break;
|
|
|
760 |
case "import_mixin":
|
|
|
761 |
list(,$importId) = $prop;
|
|
|
762 |
$import = $this->env->imports[$importId];
|
|
|
763 |
if ($import[0] === false) {
|
|
|
764 |
if (isset($import[1])) {
|
|
|
765 |
$out->lines[] = $import[1];
|
|
|
766 |
}
|
|
|
767 |
} else {
|
|
|
768 |
list(, $bottom, $parser, $importDir) = $import;
|
|
|
769 |
$this->compileImportedProps($bottom, $block, $out, $parser, $importDir);
|
|
|
770 |
}
|
|
|
771 |
|
|
|
772 |
break;
|
|
|
773 |
default:
|
|
|
774 |
$this->throwError("unknown op: {$prop[0]}\n");
|
|
|
775 |
}
|
|
|
776 |
}
|
|
|
777 |
|
|
|
778 |
|
|
|
779 |
/**
|
|
|
780 |
* Compiles a primitive value into a CSS property value.
|
|
|
781 |
*
|
|
|
782 |
* Values in lessphp are typed by being wrapped in arrays, their format is
|
|
|
783 |
* typically:
|
|
|
784 |
*
|
|
|
785 |
* array(type, contents [, additional_contents]*)
|
|
|
786 |
*
|
|
|
787 |
* The input is expected to be reduced. This function will not work on
|
|
|
788 |
* things like expressions and variables.
|
|
|
789 |
*/
|
|
|
790 |
protected function compileValue($value) {
|
|
|
791 |
switch ($value[0]) {
|
|
|
792 |
case 'list':
|
|
|
793 |
// [1] - delimiter
|
|
|
794 |
// [2] - array of values
|
|
|
795 |
return implode($value[1], array_map(array($this, 'compileValue'), $value[2]));
|
|
|
796 |
case 'raw_color':
|
|
|
797 |
if (!empty($this->formatter->compressColors)) {
|
|
|
798 |
return $this->compileValue($this->coerceColor($value));
|
|
|
799 |
}
|
|
|
800 |
return $value[1];
|
|
|
801 |
case 'keyword':
|
|
|
802 |
// [1] - the keyword
|
|
|
803 |
return $value[1];
|
|
|
804 |
case 'number':
|
|
|
805 |
list(, $num, $unit) = $value;
|
|
|
806 |
// [1] - the number
|
|
|
807 |
// [2] - the unit
|
|
|
808 |
if ($this->numberPrecision !== null) {
|
|
|
809 |
$num = round($num, $this->numberPrecision);
|
|
|
810 |
}
|
|
|
811 |
return $num . $unit;
|
|
|
812 |
case 'string':
|
|
|
813 |
// [1] - contents of string (includes quotes)
|
|
|
814 |
list(, $delim, $content) = $value;
|
|
|
815 |
foreach ($content as &$part) {
|
|
|
816 |
if (is_array($part)) {
|
|
|
817 |
$part = $this->compileValue($part);
|
|
|
818 |
}
|
|
|
819 |
}
|
|
|
820 |
return $delim . implode($content) . $delim;
|
|
|
821 |
case 'color':
|
|
|
822 |
// [1] - red component (either number or a %)
|
|
|
823 |
// [2] - green component
|
|
|
824 |
// [3] - blue component
|
|
|
825 |
// [4] - optional alpha component
|
|
|
826 |
list(, $r, $g, $b) = $value;
|
|
|
827 |
$r = round($r);
|
|
|
828 |
$g = round($g);
|
|
|
829 |
$b = round($b);
|
|
|
830 |
|
|
|
831 |
if (count($value) == 5 && $value[4] != 1) { // rgba
|
|
|
832 |
return 'rgba('.$r.','.$g.','.$b.','.$value[4].')';
|
|
|
833 |
}
|
|
|
834 |
|
|
|
835 |
$h = sprintf("#%02x%02x%02x", $r, $g, $b);
|
|
|
836 |
|
|
|
837 |
if (!empty($this->formatter->compressColors)) {
|
|
|
838 |
// Converting hex color to short notation (e.g. #003399 to #039)
|
|
|
839 |
if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) {
|
|
|
840 |
$h = '#' . $h[1] . $h[3] . $h[5];
|
|
|
841 |
}
|
|
|
842 |
}
|
|
|
843 |
|
|
|
844 |
return $h;
|
|
|
845 |
|
|
|
846 |
case 'function':
|
|
|
847 |
list(, $name, $args) = $value;
|
|
|
848 |
return $name.'('.$this->compileValue($args).')';
|
|
|
849 |
default: // assumed to be unit
|
|
|
850 |
$this->throwError("unknown value type: $value[0]");
|
|
|
851 |
}
|
|
|
852 |
}
|
|
|
853 |
|
|
|
854 |
protected function lib_pow($args) {
|
|
|
855 |
list($base, $exp) = $this->assertArgs($args, 2, "pow");
|
|
|
856 |
return pow($this->assertNumber($base), $this->assertNumber($exp));
|
|
|
857 |
}
|
|
|
858 |
|
|
|
859 |
protected function lib_pi() {
|
|
|
860 |
return pi();
|
|
|
861 |
}
|
|
|
862 |
|
|
|
863 |
protected function lib_mod($args) {
|
|
|
864 |
list($a, $b) = $this->assertArgs($args, 2, "mod");
|
|
|
865 |
return $this->assertNumber($a) % $this->assertNumber($b);
|
|
|
866 |
}
|
|
|
867 |
|
|
|
868 |
protected function lib_tan($num) {
|
|
|
869 |
return tan($this->assertNumber($num));
|
|
|
870 |
}
|
|
|
871 |
|
|
|
872 |
protected function lib_sin($num) {
|
|
|
873 |
return sin($this->assertNumber($num));
|
|
|
874 |
}
|
|
|
875 |
|
|
|
876 |
protected function lib_cos($num) {
|
|
|
877 |
return cos($this->assertNumber($num));
|
|
|
878 |
}
|
|
|
879 |
|
|
|
880 |
protected function lib_atan($num) {
|
|
|
881 |
$num = atan($this->assertNumber($num));
|
|
|
882 |
return array("number", $num, "rad");
|
|
|
883 |
}
|
|
|
884 |
|
|
|
885 |
protected function lib_asin($num) {
|
|
|
886 |
$num = asin($this->assertNumber($num));
|
|
|
887 |
return array("number", $num, "rad");
|
|
|
888 |
}
|
|
|
889 |
|
|
|
890 |
protected function lib_acos($num) {
|
|
|
891 |
$num = acos($this->assertNumber($num));
|
|
|
892 |
return array("number", $num, "rad");
|
|
|
893 |
}
|
|
|
894 |
|
|
|
895 |
protected function lib_sqrt($num) {
|
|
|
896 |
return sqrt($this->assertNumber($num));
|
|
|
897 |
}
|
|
|
898 |
|
|
|
899 |
protected function lib_extract($value) {
|
|
|
900 |
list($list, $idx) = $this->assertArgs($value, 2, "extract");
|
|
|
901 |
$idx = $this->assertNumber($idx);
|
|
|
902 |
// 1 indexed
|
|
|
903 |
if ($list[0] == "list" && isset($list[2][$idx - 1])) {
|
|
|
904 |
return $list[2][$idx - 1];
|
|
|
905 |
}
|
|
|
906 |
}
|
|
|
907 |
|
|
|
908 |
protected function lib_isnumber($value) {
|
|
|
909 |
return $this->toBool($value[0] == "number");
|
|
|
910 |
}
|
|
|
911 |
|
|
|
912 |
protected function lib_isstring($value) {
|
|
|
913 |
return $this->toBool($value[0] == "string");
|
|
|
914 |
}
|
|
|
915 |
|
|
|
916 |
protected function lib_iscolor($value) {
|
|
|
917 |
return $this->toBool($this->coerceColor($value));
|
|
|
918 |
}
|
|
|
919 |
|
|
|
920 |
protected function lib_iskeyword($value) {
|
|
|
921 |
return $this->toBool($value[0] == "keyword");
|
|
|
922 |
}
|
|
|
923 |
|
|
|
924 |
protected function lib_ispixel($value) {
|
|
|
925 |
return $this->toBool($value[0] == "number" && $value[2] == "px");
|
|
|
926 |
}
|
|
|
927 |
|
|
|
928 |
protected function lib_ispercentage($value) {
|
|
|
929 |
return $this->toBool($value[0] == "number" && $value[2] == "%");
|
|
|
930 |
}
|
|
|
931 |
|
|
|
932 |
protected function lib_isem($value) {
|
|
|
933 |
return $this->toBool($value[0] == "number" && $value[2] == "em");
|
|
|
934 |
}
|
|
|
935 |
|
|
|
936 |
protected function lib_isrem($value) {
|
|
|
937 |
return $this->toBool($value[0] == "number" && $value[2] == "rem");
|
|
|
938 |
}
|
|
|
939 |
|
|
|
940 |
protected function lib_rgbahex($color) {
|
|
|
941 |
$color = $this->coerceColor($color);
|
|
|
942 |
if (is_null($color))
|
|
|
943 |
$this->throwError("color expected for rgbahex");
|
|
|
944 |
|
|
|
945 |
return sprintf("#%02x%02x%02x%02x",
|
|
|
946 |
isset($color[4]) ? $color[4]*255 : 255,
|
|
|
947 |
$color[1],$color[2], $color[3]);
|
|
|
948 |
}
|
|
|
949 |
|
|
|
950 |
protected function lib_argb($color){
|
|
|
951 |
return $this->lib_rgbahex($color);
|
|
|
952 |
}
|
|
|
953 |
|
|
|
954 |
// utility func to unquote a string
|
|
|
955 |
protected function lib_e($arg) {
|
|
|
956 |
switch ($arg[0]) {
|
|
|
957 |
case "list":
|
|
|
958 |
$items = $arg[2];
|
|
|
959 |
if (isset($items[0])) {
|
|
|
960 |
return $this->lib_e($items[0]);
|
|
|
961 |
}
|
|
|
962 |
return self::$defaultValue;
|
|
|
963 |
case "string":
|
|
|
964 |
$arg[1] = "";
|
|
|
965 |
return $arg;
|
|
|
966 |
case "keyword":
|
|
|
967 |
return $arg;
|
|
|
968 |
default:
|
|
|
969 |
return array("keyword", $this->compileValue($arg));
|
|
|
970 |
}
|
|
|
971 |
}
|
|
|
972 |
|
|
|
973 |
protected function lib__sprintf($args) {
|
|
|
974 |
if ($args[0] != "list") return $args;
|
|
|
975 |
$values = $args[2];
|
|
|
976 |
$string = array_shift($values);
|
|
|
977 |
$template = $this->compileValue($this->lib_e($string));
|
|
|
978 |
|
|
|
979 |
$i = 0;
|
|
|
980 |
if (preg_match_all('/%[dsa]/', $template, $m)) {
|
|
|
981 |
foreach ($m[0] as $match) {
|
|
|
982 |
$val = isset($values[$i]) ?
|
|
|
983 |
$this->reduce($values[$i]) : array('keyword', '');
|
|
|
984 |
|
|
|
985 |
// lessjs compat, renders fully expanded color, not raw color
|
|
|
986 |
if ($color = $this->coerceColor($val)) {
|
|
|
987 |
$val = $color;
|
|
|
988 |
}
|
|
|
989 |
|
|
|
990 |
$i++;
|
|
|
991 |
$rep = $this->compileValue($this->lib_e($val));
|
|
|
992 |
$template = preg_replace('/'.self::preg_quote($match).'/',
|
|
|
993 |
$rep, $template, 1);
|
|
|
994 |
}
|
|
|
995 |
}
|
|
|
996 |
|
|
|
997 |
$d = $string[0] == "string" ? $string[1] : '"';
|
|
|
998 |
return array("string", $d, array($template));
|
|
|
999 |
}
|
|
|
1000 |
|
|
|
1001 |
protected function lib_floor($arg) {
|
|
|
1002 |
$value = $this->assertNumber($arg);
|
|
|
1003 |
return array("number", floor($value), $arg[2]);
|
|
|
1004 |
}
|
|
|
1005 |
|
|
|
1006 |
protected function lib_ceil($arg) {
|
|
|
1007 |
$value = $this->assertNumber($arg);
|
|
|
1008 |
return array("number", ceil($value), $arg[2]);
|
|
|
1009 |
}
|
|
|
1010 |
|
|
|
1011 |
protected function lib_round($arg) {
|
|
|
1012 |
$value = $this->assertNumber($arg);
|
|
|
1013 |
return array("number", round($value), $arg[2]);
|
|
|
1014 |
}
|
|
|
1015 |
|
|
|
1016 |
protected function lib_unit($arg) {
|
|
|
1017 |
if ($arg[0] == "list") {
|
|
|
1018 |
list($number, $newUnit) = $arg[2];
|
|
|
1019 |
return array("number", $this->assertNumber($number),
|
|
|
1020 |
$this->compileValue($this->lib_e($newUnit)));
|
|
|
1021 |
} else {
|
|
|
1022 |
return array("number", $this->assertNumber($arg), "");
|
|
|
1023 |
}
|
|
|
1024 |
}
|
|
|
1025 |
|
|
|
1026 |
/**
|
|
|
1027 |
* Helper function to get arguments for color manipulation functions.
|
|
|
1028 |
* takes a list that contains a color like thing and a percentage
|
|
|
1029 |
*/
|
|
|
1030 |
protected function colorArgs($args) {
|
|
|
1031 |
if ($args[0] != 'list' || count($args[2]) < 2) {
|
|
|
1032 |
return array(array('color', 0, 0, 0), 0);
|
|
|
1033 |
}
|
|
|
1034 |
list($color, $delta) = $args[2];
|
|
|
1035 |
$color = $this->assertColor($color);
|
|
|
1036 |
$delta = floatval($delta[1]);
|
|
|
1037 |
|
|
|
1038 |
return array($color, $delta);
|
|
|
1039 |
}
|
|
|
1040 |
|
|
|
1041 |
protected function lib_darken($args) {
|
|
|
1042 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1043 |
|
|
|
1044 |
$hsl = $this->toHSL($color);
|
|
|
1045 |
$hsl[3] = $this->clamp($hsl[3] - $delta, 100);
|
|
|
1046 |
return $this->toRGB($hsl);
|
|
|
1047 |
}
|
|
|
1048 |
|
|
|
1049 |
protected function lib_lighten($args) {
|
|
|
1050 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1051 |
|
|
|
1052 |
$hsl = $this->toHSL($color);
|
|
|
1053 |
$hsl[3] = $this->clamp($hsl[3] + $delta, 100);
|
|
|
1054 |
return $this->toRGB($hsl);
|
|
|
1055 |
}
|
|
|
1056 |
|
|
|
1057 |
protected function lib_saturate($args) {
|
|
|
1058 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1059 |
|
|
|
1060 |
$hsl = $this->toHSL($color);
|
|
|
1061 |
$hsl[2] = $this->clamp($hsl[2] + $delta, 100);
|
|
|
1062 |
return $this->toRGB($hsl);
|
|
|
1063 |
}
|
|
|
1064 |
|
|
|
1065 |
protected function lib_desaturate($args) {
|
|
|
1066 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1067 |
|
|
|
1068 |
$hsl = $this->toHSL($color);
|
|
|
1069 |
$hsl[2] = $this->clamp($hsl[2] - $delta, 100);
|
|
|
1070 |
return $this->toRGB($hsl);
|
|
|
1071 |
}
|
|
|
1072 |
|
|
|
1073 |
protected function lib_spin($args) {
|
|
|
1074 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1075 |
|
|
|
1076 |
$hsl = $this->toHSL($color);
|
|
|
1077 |
|
|
|
1078 |
$hsl[1] = $hsl[1] + $delta % 360;
|
|
|
1079 |
if ($hsl[1] < 0) $hsl[1] += 360;
|
|
|
1080 |
|
|
|
1081 |
return $this->toRGB($hsl);
|
|
|
1082 |
}
|
|
|
1083 |
|
|
|
1084 |
protected function lib_fadeout($args) {
|
|
|
1085 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1086 |
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) - $delta/100);
|
|
|
1087 |
return $color;
|
|
|
1088 |
}
|
|
|
1089 |
|
|
|
1090 |
protected function lib_fadein($args) {
|
|
|
1091 |
list($color, $delta) = $this->colorArgs($args);
|
|
|
1092 |
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) + $delta/100);
|
|
|
1093 |
return $color;
|
|
|
1094 |
}
|
|
|
1095 |
|
|
|
1096 |
protected function lib_hue($color) {
|
|
|
1097 |
$hsl = $this->toHSL($this->assertColor($color));
|
|
|
1098 |
return round($hsl[1]);
|
|
|
1099 |
}
|
|
|
1100 |
|
|
|
1101 |
protected function lib_saturation($color) {
|
|
|
1102 |
$hsl = $this->toHSL($this->assertColor($color));
|
|
|
1103 |
return round($hsl[2]);
|
|
|
1104 |
}
|
|
|
1105 |
|
|
|
1106 |
protected function lib_lightness($color) {
|
|
|
1107 |
$hsl = $this->toHSL($this->assertColor($color));
|
|
|
1108 |
return round($hsl[3]);
|
|
|
1109 |
}
|
|
|
1110 |
|
|
|
1111 |
// get the alpha of a color
|
|
|
1112 |
// defaults to 1 for non-colors or colors without an alpha
|
|
|
1113 |
protected function lib_alpha($value) {
|
|
|
1114 |
if (!is_null($color = $this->coerceColor($value))) {
|
|
|
1115 |
return isset($color[4]) ? $color[4] : 1;
|
|
|
1116 |
}
|
|
|
1117 |
}
|
|
|
1118 |
|
|
|
1119 |
// set the alpha of the color
|
|
|
1120 |
protected function lib_fade($args) {
|
|
|
1121 |
list($color, $alpha) = $this->colorArgs($args);
|
|
|
1122 |
$color[4] = $this->clamp($alpha / 100.0);
|
|
|
1123 |
return $color;
|
|
|
1124 |
}
|
|
|
1125 |
|
|
|
1126 |
protected function lib_percentage($arg) {
|
|
|
1127 |
$num = $this->assertNumber($arg);
|
|
|
1128 |
return array("number", $num*100, "%");
|
|
|
1129 |
}
|
|
|
1130 |
|
|
|
1131 |
// mixes two colors by weight
|
|
|
1132 |
// mix(@color1, @color2, [@weight: 50%]);
|
|
|
1133 |
// http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#mix-instance_method
|
|
|
1134 |
protected function lib_mix($args) {
|
|
|
1135 |
if ($args[0] != "list" || count($args[2]) < 2)
|
|
|
1136 |
$this->throwError("mix expects (color1, color2, weight)");
|
|
|
1137 |
|
|
|
1138 |
list($first, $second) = $args[2];
|
|
|
1139 |
$first = $this->assertColor($first);
|
|
|
1140 |
$second = $this->assertColor($second);
|
|
|
1141 |
|
|
|
1142 |
$first_a = $this->lib_alpha($first);
|
|
|
1143 |
$second_a = $this->lib_alpha($second);
|
|
|
1144 |
|
|
|
1145 |
if (isset($args[2][2])) {
|
|
|
1146 |
$weight = $args[2][2][1] / 100.0;
|
|
|
1147 |
} else {
|
|
|
1148 |
$weight = 0.5;
|
|
|
1149 |
}
|
|
|
1150 |
|
|
|
1151 |
$w = $weight * 2 - 1;
|
|
|
1152 |
$a = $first_a - $second_a;
|
|
|
1153 |
|
|
|
1154 |
$w1 = (($w * $a == -1 ? $w : ($w + $a)/(1 + $w * $a)) + 1) / 2.0;
|
|
|
1155 |
$w2 = 1.0 - $w1;
|
|
|
1156 |
|
|
|
1157 |
$new = array('color',
|
|
|
1158 |
$w1 * $first[1] + $w2 * $second[1],
|
|
|
1159 |
$w1 * $first[2] + $w2 * $second[2],
|
|
|
1160 |
$w1 * $first[3] + $w2 * $second[3],
|
|
|
1161 |
);
|
|
|
1162 |
|
|
|
1163 |
if ($first_a != 1.0 || $second_a != 1.0) {
|
|
|
1164 |
$new[] = $first_a * $weight + $second_a * ($weight - 1);
|
|
|
1165 |
}
|
|
|
1166 |
|
|
|
1167 |
return $this->fixColor($new);
|
|
|
1168 |
}
|
|
|
1169 |
|
|
|
1170 |
protected function lib_contrast($args) {
|
|
|
1171 |
if ($args[0] != 'list' || count($args[2]) < 3) {
|
|
|
1172 |
return array(array('color', 0, 0, 0), 0);
|
|
|
1173 |
}
|
|
|
1174 |
|
|
|
1175 |
list($inputColor, $darkColor, $lightColor) = $args[2];
|
|
|
1176 |
|
|
|
1177 |
$inputColor = $this->assertColor($inputColor);
|
|
|
1178 |
$darkColor = $this->assertColor($darkColor);
|
|
|
1179 |
$lightColor = $this->assertColor($lightColor);
|
|
|
1180 |
$hsl = $this->toHSL($inputColor);
|
|
|
1181 |
|
|
|
1182 |
if ($hsl[3] > 50) {
|
|
|
1183 |
return $darkColor;
|
|
|
1184 |
}
|
|
|
1185 |
|
|
|
1186 |
return $lightColor;
|
|
|
1187 |
}
|
|
|
1188 |
|
|
|
1189 |
protected function assertColor($value, $error = "expected color value") {
|
|
|
1190 |
$color = $this->coerceColor($value);
|
|
|
1191 |
if (is_null($color)) $this->throwError($error);
|
|
|
1192 |
return $color;
|
|
|
1193 |
}
|
|
|
1194 |
|
|
|
1195 |
protected function assertNumber($value, $error = "expecting number") {
|
|
|
1196 |
if ($value[0] == "number") return $value[1];
|
|
|
1197 |
$this->throwError($error);
|
|
|
1198 |
}
|
|
|
1199 |
|
|
|
1200 |
protected function assertArgs($value, $expectedArgs, $name="") {
|
|
|
1201 |
if ($expectedArgs == 1) {
|
|
|
1202 |
return $value;
|
|
|
1203 |
} else {
|
|
|
1204 |
if ($value[0] !== "list" || $value[1] != ",") $this->throwError("expecting list");
|
|
|
1205 |
$values = $value[2];
|
|
|
1206 |
$numValues = count($values);
|
|
|
1207 |
if ($expectedArgs != $numValues) {
|
|
|
1208 |
if ($name) {
|
|
|
1209 |
$name = $name . ": ";
|
|
|
1210 |
}
|
|
|
1211 |
|
|
|
1212 |
$this->throwError("${name}expecting $expectedArgs arguments, got $numValues");
|
|
|
1213 |
}
|
|
|
1214 |
|
|
|
1215 |
return $values;
|
|
|
1216 |
}
|
|
|
1217 |
}
|
|
|
1218 |
|
|
|
1219 |
protected function toHSL($color) {
|
|
|
1220 |
if ($color[0] == 'hsl') return $color;
|
|
|
1221 |
|
|
|
1222 |
$r = $color[1] / 255;
|
|
|
1223 |
$g = $color[2] / 255;
|
|
|
1224 |
$b = $color[3] / 255;
|
|
|
1225 |
|
|
|
1226 |
$min = min($r, $g, $b);
|
|
|
1227 |
$max = max($r, $g, $b);
|
|
|
1228 |
|
|
|
1229 |
$L = ($min + $max) / 2;
|
|
|
1230 |
if ($min == $max) {
|
|
|
1231 |
$S = $H = 0;
|
|
|
1232 |
} else {
|
|
|
1233 |
if ($L < 0.5)
|
|
|
1234 |
$S = ($max - $min)/($max + $min);
|
|
|
1235 |
else
|
|
|
1236 |
$S = ($max - $min)/(2.0 - $max - $min);
|
|
|
1237 |
|
|
|
1238 |
if ($r == $max) $H = ($g - $b)/($max - $min);
|
|
|
1239 |
elseif ($g == $max) $H = 2.0 + ($b - $r)/($max - $min);
|
|
|
1240 |
elseif ($b == $max) $H = 4.0 + ($r - $g)/($max - $min);
|
|
|
1241 |
|
|
|
1242 |
}
|
|
|
1243 |
|
|
|
1244 |
$out = array('hsl',
|
|
|
1245 |
($H < 0 ? $H + 6 : $H)*60,
|
|
|
1246 |
$S*100,
|
|
|
1247 |
$L*100,
|
|
|
1248 |
);
|
|
|
1249 |
|
|
|
1250 |
if (count($color) > 4) $out[] = $color[4]; // copy alpha
|
|
|
1251 |
return $out;
|
|
|
1252 |
}
|
|
|
1253 |
|
|
|
1254 |
protected function toRGB_helper($comp, $temp1, $temp2) {
|
|
|
1255 |
if ($comp < 0) $comp += 1.0;
|
|
|
1256 |
elseif ($comp > 1) $comp -= 1.0;
|
|
|
1257 |
|
|
|
1258 |
if (6 * $comp < 1) return $temp1 + ($temp2 - $temp1) * 6 * $comp;
|
|
|
1259 |
if (2 * $comp < 1) return $temp2;
|
|
|
1260 |
if (3 * $comp < 2) return $temp1 + ($temp2 - $temp1)*((2/3) - $comp) * 6;
|
|
|
1261 |
|
|
|
1262 |
return $temp1;
|
|
|
1263 |
}
|
|
|
1264 |
|
|
|
1265 |
/**
|
|
|
1266 |
* Converts a hsl array into a color value in rgb.
|
|
|
1267 |
* Expects H to be in range of 0 to 360, S and L in 0 to 100
|
|
|
1268 |
*/
|
|
|
1269 |
protected function toRGB($color) {
|
|
|
1270 |
if ($color[0] == 'color') return $color;
|
|
|
1271 |
|
|
|
1272 |
$H = $color[1] / 360;
|
|
|
1273 |
$S = $color[2] / 100;
|
|
|
1274 |
$L = $color[3] / 100;
|
|
|
1275 |
|
|
|
1276 |
if ($S == 0) {
|
|
|
1277 |
$r = $g = $b = $L;
|
|
|
1278 |
} else {
|
|
|
1279 |
$temp2 = $L < 0.5 ?
|
|
|
1280 |
$L*(1.0 + $S) :
|
|
|
1281 |
$L + $S - $L * $S;
|
|
|
1282 |
|
|
|
1283 |
$temp1 = 2.0 * $L - $temp2;
|
|
|
1284 |
|
|
|
1285 |
$r = $this->toRGB_helper($H + 1/3, $temp1, $temp2);
|
|
|
1286 |
$g = $this->toRGB_helper($H, $temp1, $temp2);
|
|
|
1287 |
$b = $this->toRGB_helper($H - 1/3, $temp1, $temp2);
|
|
|
1288 |
}
|
|
|
1289 |
|
|
|
1290 |
// $out = array('color', round($r*255), round($g*255), round($b*255));
|
|
|
1291 |
$out = array('color', $r*255, $g*255, $b*255);
|
|
|
1292 |
if (count($color) > 4) $out[] = $color[4]; // copy alpha
|
|
|
1293 |
return $out;
|
|
|
1294 |
}
|
|
|
1295 |
|
|
|
1296 |
protected function clamp($v, $max = 1, $min = 0) {
|
|
|
1297 |
return min($max, max($min, $v));
|
|
|
1298 |
}
|
|
|
1299 |
|
|
|
1300 |
/**
|
|
|
1301 |
* Convert the rgb, rgba, hsl color literals of function type
|
|
|
1302 |
* as returned by the parser into values of color type.
|
|
|
1303 |
*/
|
|
|
1304 |
protected function funcToColor($func) {
|
|
|
1305 |
$fname = $func[1];
|
|
|
1306 |
if ($func[2][0] != 'list') return false; // need a list of arguments
|
|
|
1307 |
$rawComponents = $func[2][2];
|
|
|
1308 |
|
|
|
1309 |
if ($fname == 'hsl' || $fname == 'hsla') {
|
|
|
1310 |
$hsl = array('hsl');
|
|
|
1311 |
$i = 0;
|
|
|
1312 |
foreach ($rawComponents as $c) {
|
|
|
1313 |
$val = $this->reduce($c);
|
|
|
1314 |
$val = isset($val[1]) ? floatval($val[1]) : 0;
|
|
|
1315 |
|
|
|
1316 |
if ($i == 0) $clamp = 360;
|
|
|
1317 |
elseif ($i < 3) $clamp = 100;
|
|
|
1318 |
else $clamp = 1;
|
|
|
1319 |
|
|
|
1320 |
$hsl[] = $this->clamp($val, $clamp);
|
|
|
1321 |
$i++;
|
|
|
1322 |
}
|
|
|
1323 |
|
|
|
1324 |
while (count($hsl) < 4) $hsl[] = 0;
|
|
|
1325 |
return $this->toRGB($hsl);
|
|
|
1326 |
|
|
|
1327 |
} elseif ($fname == 'rgb' || $fname == 'rgba') {
|
|
|
1328 |
$components = array();
|
|
|
1329 |
$i = 1;
|
|
|
1330 |
foreach ($rawComponents as $c) {
|
|
|
1331 |
$c = $this->reduce($c);
|
|
|
1332 |
if ($i < 4) {
|
|
|
1333 |
if ($c[0] == "number" && $c[2] == "%") {
|
|
|
1334 |
$components[] = 255 * ($c[1] / 100);
|
|
|
1335 |
} else {
|
|
|
1336 |
$components[] = floatval($c[1]);
|
|
|
1337 |
}
|
|
|
1338 |
} elseif ($i == 4) {
|
|
|
1339 |
if ($c[0] == "number" && $c[2] == "%") {
|
|
|
1340 |
$components[] = 1.0 * ($c[1] / 100);
|
|
|
1341 |
} else {
|
|
|
1342 |
$components[] = floatval($c[1]);
|
|
|
1343 |
}
|
|
|
1344 |
} else break;
|
|
|
1345 |
|
|
|
1346 |
$i++;
|
|
|
1347 |
}
|
|
|
1348 |
while (count($components) < 3) $components[] = 0;
|
|
|
1349 |
array_unshift($components, 'color');
|
|
|
1350 |
return $this->fixColor($components);
|
|
|
1351 |
}
|
|
|
1352 |
|
|
|
1353 |
return false;
|
|
|
1354 |
}
|
|
|
1355 |
|
|
|
1356 |
protected function reduce($value, $forExpression = false) {
|
|
|
1357 |
switch ($value[0]) {
|
|
|
1358 |
case "interpolate":
|
|
|
1359 |
$reduced = $this->reduce($value[1]);
|
|
|
1360 |
$var = $this->compileValue($reduced);
|
|
|
1361 |
$res = $this->reduce(array("variable", $this->vPrefix . $var));
|
|
|
1362 |
|
|
|
1363 |
if ($res[0] == "raw_color") {
|
|
|
1364 |
$res = $this->coerceColor($res);
|
|
|
1365 |
}
|
|
|
1366 |
|
|
|
1367 |
if (empty($value[2])) $res = $this->lib_e($res);
|
|
|
1368 |
|
|
|
1369 |
return $res;
|
|
|
1370 |
case "variable":
|
|
|
1371 |
$key = $value[1];
|
|
|
1372 |
if (is_array($key)) {
|
|
|
1373 |
$key = $this->reduce($key);
|
|
|
1374 |
$key = $this->vPrefix . $this->compileValue($this->lib_e($key));
|
|
|
1375 |
}
|
|
|
1376 |
|
|
|
1377 |
$seen =& $this->env->seenNames;
|
|
|
1378 |
|
|
|
1379 |
if (!empty($seen[$key])) {
|
|
|
1380 |
$this->throwError("infinite loop detected: $key");
|
|
|
1381 |
}
|
|
|
1382 |
|
|
|
1383 |
$seen[$key] = true;
|
|
|
1384 |
$out = $this->reduce($this->get($key, self::$defaultValue));
|
|
|
1385 |
$seen[$key] = false;
|
|
|
1386 |
return $out;
|
|
|
1387 |
case "list":
|
|
|
1388 |
foreach ($value[2] as &$item) {
|
|
|
1389 |
$item = $this->reduce($item, $forExpression);
|
|
|
1390 |
}
|
|
|
1391 |
return $value;
|
|
|
1392 |
case "expression":
|
|
|
1393 |
return $this->evaluate($value);
|
|
|
1394 |
case "string":
|
|
|
1395 |
foreach ($value[2] as &$part) {
|
|
|
1396 |
if (is_array($part)) {
|
|
|
1397 |
$strip = $part[0] == "variable";
|
|
|
1398 |
$part = $this->reduce($part);
|
|
|
1399 |
if ($strip) $part = $this->lib_e($part);
|
|
|
1400 |
}
|
|
|
1401 |
}
|
|
|
1402 |
return $value;
|
|
|
1403 |
case "escape":
|
|
|
1404 |
list(,$inner) = $value;
|
|
|
1405 |
return $this->lib_e($this->reduce($inner));
|
|
|
1406 |
case "function":
|
|
|
1407 |
$color = $this->funcToColor($value);
|
|
|
1408 |
if ($color) return $color;
|
|
|
1409 |
|
|
|
1410 |
list(, $name, $args) = $value;
|
|
|
1411 |
if ($name == "%") $name = "_sprintf";
|
|
|
1412 |
$f = isset($this->libFunctions[$name]) ?
|
|
|
1413 |
$this->libFunctions[$name] : array($this, 'lib_'.$name);
|
|
|
1414 |
|
|
|
1415 |
if (is_callable($f)) {
|
|
|
1416 |
if ($args[0] == 'list')
|
|
|
1417 |
$args = self::compressList($args[2], $args[1]);
|
|
|
1418 |
|
|
|
1419 |
$ret = call_user_func($f, $this->reduce($args, true), $this);
|
|
|
1420 |
|
|
|
1421 |
if (is_null($ret)) {
|
|
|
1422 |
return array("string", "", array(
|
|
|
1423 |
$name, "(", $args, ")"
|
|
|
1424 |
));
|
|
|
1425 |
}
|
|
|
1426 |
|
|
|
1427 |
// convert to a typed value if the result is a php primitive
|
|
|
1428 |
if (is_numeric($ret)) $ret = array('number', $ret, "");
|
|
|
1429 |
elseif (!is_array($ret)) $ret = array('keyword', $ret);
|
|
|
1430 |
|
|
|
1431 |
return $ret;
|
|
|
1432 |
}
|
|
|
1433 |
|
|
|
1434 |
// plain function, reduce args
|
|
|
1435 |
$value[2] = $this->reduce($value[2]);
|
|
|
1436 |
return $value;
|
|
|
1437 |
case "unary":
|
|
|
1438 |
list(, $op, $exp) = $value;
|
|
|
1439 |
$exp = $this->reduce($exp);
|
|
|
1440 |
|
|
|
1441 |
if ($exp[0] == "number") {
|
|
|
1442 |
switch ($op) {
|
|
|
1443 |
case "+":
|
|
|
1444 |
return $exp;
|
|
|
1445 |
case "-":
|
|
|
1446 |
$exp[1] *= -1;
|
|
|
1447 |
return $exp;
|
|
|
1448 |
}
|
|
|
1449 |
}
|
|
|
1450 |
return array("string", "", array($op, $exp));
|
|
|
1451 |
}
|
|
|
1452 |
|
|
|
1453 |
if ($forExpression) {
|
|
|
1454 |
switch ($value[0]) {
|
|
|
1455 |
case "keyword":
|
|
|
1456 |
if ($color = $this->coerceColor($value)) {
|
|
|
1457 |
return $color;
|
|
|
1458 |
}
|
|
|
1459 |
break;
|
|
|
1460 |
case "raw_color":
|
|
|
1461 |
return $this->coerceColor($value);
|
|
|
1462 |
}
|
|
|
1463 |
}
|
|
|
1464 |
|
|
|
1465 |
return $value;
|
|
|
1466 |
}
|
|
|
1467 |
|
|
|
1468 |
|
|
|
1469 |
// coerce a value for use in color operation
|
|
|
1470 |
protected function coerceColor($value) {
|
|
|
1471 |
switch($value[0]) {
|
|
|
1472 |
case 'color': return $value;
|
|
|
1473 |
case 'raw_color':
|
|
|
1474 |
$c = array("color", 0, 0, 0);
|
|
|
1475 |
$colorStr = substr($value[1], 1);
|
|
|
1476 |
$num = hexdec($colorStr);
|
|
|
1477 |
$width = strlen($colorStr) == 3 ? 16 : 256;
|
|
|
1478 |
|
|
|
1479 |
for ($i = 3; $i > 0; $i--) { // 3 2 1
|
|
|
1480 |
$t = $num % $width;
|
|
|
1481 |
$num /= $width;
|
|
|
1482 |
|
|
|
1483 |
$c[$i] = $t * (256/$width) + $t * floor(16/$width);
|
|
|
1484 |
}
|
|
|
1485 |
|
|
|
1486 |
return $c;
|
|
|
1487 |
case 'keyword':
|
|
|
1488 |
$name = $value[1];
|
|
|
1489 |
if (isset(self::$cssColors[$name])) {
|
|
|
1490 |
$rgba = explode(',', self::$cssColors[$name]);
|
|
|
1491 |
|
|
|
1492 |
if(isset($rgba[3]))
|
|
|
1493 |
return array('color', $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
|
|
|
1494 |
|
|
|
1495 |
return array('color', $rgba[0], $rgba[1], $rgba[2]);
|
|
|
1496 |
}
|
|
|
1497 |
return null;
|
|
|
1498 |
}
|
|
|
1499 |
}
|
|
|
1500 |
|
|
|
1501 |
// make something string like into a string
|
|
|
1502 |
protected function coerceString($value) {
|
|
|
1503 |
switch ($value[0]) {
|
|
|
1504 |
case "string":
|
|
|
1505 |
return $value;
|
|
|
1506 |
case "keyword":
|
|
|
1507 |
return array("string", "", array($value[1]));
|
|
|
1508 |
}
|
|
|
1509 |
return null;
|
|
|
1510 |
}
|
|
|
1511 |
|
|
|
1512 |
// turn list of length 1 into value type
|
|
|
1513 |
protected function flattenList($value) {
|
|
|
1514 |
if ($value[0] == "list" && count($value[2]) == 1) {
|
|
|
1515 |
return $this->flattenList($value[2][0]);
|
|
|
1516 |
}
|
|
|
1517 |
return $value;
|
|
|
1518 |
}
|
|
|
1519 |
|
|
|
1520 |
protected function toBool($a) {
|
|
|
1521 |
if ($a) return self::$TRUE;
|
|
|
1522 |
else return self::$FALSE;
|
|
|
1523 |
}
|
|
|
1524 |
|
|
|
1525 |
// evaluate an expression
|
|
|
1526 |
protected function evaluate($exp) {
|
|
|
1527 |
list(, $op, $left, $right, $whiteBefore, $whiteAfter) = $exp;
|
|
|
1528 |
|
|
|
1529 |
$left = $this->reduce($left, true);
|
|
|
1530 |
$right = $this->reduce($right, true);
|
|
|
1531 |
|
|
|
1532 |
if ($leftColor = $this->coerceColor($left)) {
|
|
|
1533 |
$left = $leftColor;
|
|
|
1534 |
}
|
|
|
1535 |
|
|
|
1536 |
if ($rightColor = $this->coerceColor($right)) {
|
|
|
1537 |
$right = $rightColor;
|
|
|
1538 |
}
|
|
|
1539 |
|
|
|
1540 |
$ltype = $left[0];
|
|
|
1541 |
$rtype = $right[0];
|
|
|
1542 |
|
|
|
1543 |
// operators that work on all types
|
|
|
1544 |
if ($op == "and") {
|
|
|
1545 |
return $this->toBool($left == self::$TRUE && $right == self::$TRUE);
|
|
|
1546 |
}
|
|
|
1547 |
|
|
|
1548 |
if ($op == "=") {
|
|
|
1549 |
return $this->toBool($this->eq($left, $right) );
|
|
|
1550 |
}
|
|
|
1551 |
|
|
|
1552 |
if ($op == "+" && !is_null($str = $this->stringConcatenate($left, $right))) {
|
|
|
1553 |
return $str;
|
|
|
1554 |
}
|
|
|
1555 |
|
|
|
1556 |
// type based operators
|
|
|
1557 |
$fname = "op_${ltype}_${rtype}";
|
|
|
1558 |
if (is_callable(array($this, $fname))) {
|
|
|
1559 |
$out = $this->$fname($op, $left, $right);
|
|
|
1560 |
if (!is_null($out)) return $out;
|
|
|
1561 |
}
|
|
|
1562 |
|
|
|
1563 |
// make the expression look it did before being parsed
|
|
|
1564 |
$paddedOp = $op;
|
|
|
1565 |
if ($whiteBefore) $paddedOp = " " . $paddedOp;
|
|
|
1566 |
if ($whiteAfter) $paddedOp .= " ";
|
|
|
1567 |
|
|
|
1568 |
return array("string", "", array($left, $paddedOp, $right));
|
|
|
1569 |
}
|
|
|
1570 |
|
|
|
1571 |
protected function stringConcatenate($left, $right) {
|
|
|
1572 |
if ($strLeft = $this->coerceString($left)) {
|
|
|
1573 |
if ($right[0] == "string") {
|
|
|
1574 |
$right[1] = "";
|
|
|
1575 |
}
|
|
|
1576 |
$strLeft[2][] = $right;
|
|
|
1577 |
return $strLeft;
|
|
|
1578 |
}
|
|
|
1579 |
|
|
|
1580 |
if ($strRight = $this->coerceString($right)) {
|
|
|
1581 |
array_unshift($strRight[2], $left);
|
|
|
1582 |
return $strRight;
|
|
|
1583 |
}
|
|
|
1584 |
}
|
|
|
1585 |
|
|
|
1586 |
|
|
|
1587 |
// make sure a color's components don't go out of bounds
|
|
|
1588 |
protected function fixColor($c) {
|
|
|
1589 |
foreach (range(1, 3) as $i) {
|
|
|
1590 |
if ($c[$i] < 0) $c[$i] = 0;
|
|
|
1591 |
if ($c[$i] > 255) $c[$i] = 255;
|
|
|
1592 |
}
|
|
|
1593 |
|
|
|
1594 |
return $c;
|
|
|
1595 |
}
|
|
|
1596 |
|
|
|
1597 |
protected function op_number_color($op, $lft, $rgt) {
|
|
|
1598 |
if ($op == '+' || $op == '*') {
|
|
|
1599 |
return $this->op_color_number($op, $rgt, $lft);
|
|
|
1600 |
}
|
|
|
1601 |
}
|
|
|
1602 |
|
|
|
1603 |
protected function op_color_number($op, $lft, $rgt) {
|
|
|
1604 |
if ($rgt[0] == '%') $rgt[1] /= 100;
|
|
|
1605 |
|
|
|
1606 |
return $this->op_color_color($op, $lft,
|
|
|
1607 |
array_fill(1, count($lft) - 1, $rgt[1]));
|
|
|
1608 |
}
|
|
|
1609 |
|
|
|
1610 |
protected function op_color_color($op, $left, $right) {
|
|
|
1611 |
$out = array('color');
|
|
|
1612 |
$max = count($left) > count($right) ? count($left) : count($right);
|
|
|
1613 |
foreach (range(1, $max - 1) as $i) {
|
|
|
1614 |
$lval = isset($left[$i]) ? $left[$i] : 0;
|
|
|
1615 |
$rval = isset($right[$i]) ? $right[$i] : 0;
|
|
|
1616 |
switch ($op) {
|
|
|
1617 |
case '+':
|
|
|
1618 |
$out[] = $lval + $rval;
|
|
|
1619 |
break;
|
|
|
1620 |
case '-':
|
|
|
1621 |
$out[] = $lval - $rval;
|
|
|
1622 |
break;
|
|
|
1623 |
case '*':
|
|
|
1624 |
$out[] = $lval * $rval;
|
|
|
1625 |
break;
|
|
|
1626 |
case '%':
|
|
|
1627 |
$out[] = $lval % $rval;
|
|
|
1628 |
break;
|
|
|
1629 |
case '/':
|
|
|
1630 |
if ($rval == 0) $this->throwError("evaluate error: can't divide by zero");
|
|
|
1631 |
$out[] = $lval / $rval;
|
|
|
1632 |
break;
|
|
|
1633 |
default:
|
|
|
1634 |
$this->throwError('evaluate error: color op number failed on op '.$op);
|
|
|
1635 |
}
|
|
|
1636 |
}
|
|
|
1637 |
return $this->fixColor($out);
|
|
|
1638 |
}
|
|
|
1639 |
|
|
|
1640 |
function lib_red($color){
|
|
|
1641 |
$color = $this->coerceColor($color);
|
|
|
1642 |
if (is_null($color)) {
|
|
|
1643 |
$this->throwError('color expected for red()');
|
|
|
1644 |
}
|
|
|
1645 |
|
|
|
1646 |
return $color[1];
|
|
|
1647 |
}
|
|
|
1648 |
|
|
|
1649 |
function lib_green($color){
|
|
|
1650 |
$color = $this->coerceColor($color);
|
|
|
1651 |
if (is_null($color)) {
|
|
|
1652 |
$this->throwError('color expected for green()');
|
|
|
1653 |
}
|
|
|
1654 |
|
|
|
1655 |
return $color[2];
|
|
|
1656 |
}
|
|
|
1657 |
|
|
|
1658 |
function lib_blue($color){
|
|
|
1659 |
$color = $this->coerceColor($color);
|
|
|
1660 |
if (is_null($color)) {
|
|
|
1661 |
$this->throwError('color expected for blue()');
|
|
|
1662 |
}
|
|
|
1663 |
|
|
|
1664 |
return $color[3];
|
|
|
1665 |
}
|
|
|
1666 |
|
|
|
1667 |
|
|
|
1668 |
// operator on two numbers
|
|
|
1669 |
protected function op_number_number($op, $left, $right) {
|
|
|
1670 |
$unit = empty($left[2]) ? $right[2] : $left[2];
|
|
|
1671 |
|
|
|
1672 |
$value = 0;
|
|
|
1673 |
switch ($op) {
|
|
|
1674 |
case '+':
|
|
|
1675 |
$value = $left[1] + $right[1];
|
|
|
1676 |
break;
|
|
|
1677 |
case '*':
|
|
|
1678 |
$value = $left[1] * $right[1];
|
|
|
1679 |
break;
|
|
|
1680 |
case '-':
|
|
|
1681 |
$value = $left[1] - $right[1];
|
|
|
1682 |
break;
|
|
|
1683 |
case '%':
|
|
|
1684 |
$value = $left[1] % $right[1];
|
|
|
1685 |
break;
|
|
|
1686 |
case '/':
|
|
|
1687 |
if ($right[1] == 0) $this->throwError('parse error: divide by zero');
|
|
|
1688 |
$value = $left[1] / $right[1];
|
|
|
1689 |
break;
|
|
|
1690 |
case '<':
|
|
|
1691 |
return $this->toBool($left[1] < $right[1]);
|
|
|
1692 |
case '>':
|
|
|
1693 |
return $this->toBool($left[1] > $right[1]);
|
|
|
1694 |
case '>=':
|
|
|
1695 |
return $this->toBool($left[1] >= $right[1]);
|
|
|
1696 |
case '=<':
|
|
|
1697 |
return $this->toBool($left[1] <= $right[1]);
|
|
|
1698 |
default:
|
|
|
1699 |
$this->throwError('parse error: unknown number operator: '.$op);
|
|
|
1700 |
}
|
|
|
1701 |
|
|
|
1702 |
return array("number", $value, $unit);
|
|
|
1703 |
}
|
|
|
1704 |
|
|
|
1705 |
|
|
|
1706 |
/* environment functions */
|
|
|
1707 |
|
|
|
1708 |
protected function makeOutputBlock($type, $selectors = null) {
|
|
|
1709 |
$b = new stdclass;
|
|
|
1710 |
$b->lines = array();
|
|
|
1711 |
$b->children = array();
|
|
|
1712 |
$b->selectors = $selectors;
|
|
|
1713 |
$b->type = $type;
|
|
|
1714 |
$b->parent = $this->scope;
|
|
|
1715 |
return $b;
|
|
|
1716 |
}
|
|
|
1717 |
|
|
|
1718 |
// the state of execution
|
|
|
1719 |
protected function pushEnv($block = null) {
|
|
|
1720 |
$e = new stdclass;
|
|
|
1721 |
$e->parent = $this->env;
|
|
|
1722 |
$e->store = array();
|
|
|
1723 |
$e->block = $block;
|
|
|
1724 |
|
|
|
1725 |
$this->env = $e;
|
|
|
1726 |
return $e;
|
|
|
1727 |
}
|
|
|
1728 |
|
|
|
1729 |
// pop something off the stack
|
|
|
1730 |
protected function popEnv() {
|
|
|
1731 |
$old = $this->env;
|
|
|
1732 |
$this->env = $this->env->parent;
|
|
|
1733 |
return $old;
|
|
|
1734 |
}
|
|
|
1735 |
|
|
|
1736 |
// set something in the current env
|
|
|
1737 |
protected function set($name, $value) {
|
|
|
1738 |
$this->env->store[$name] = $value;
|
|
|
1739 |
}
|
|
|
1740 |
|
|
|
1741 |
|
|
|
1742 |
// get the highest occurrence entry for a name
|
|
|
1743 |
protected function get($name, $default=null) {
|
|
|
1744 |
$current = $this->env;
|
|
|
1745 |
|
|
|
1746 |
$isArguments = $name == $this->vPrefix . 'arguments';
|
|
|
1747 |
while ($current) {
|
|
|
1748 |
if ($isArguments && isset($current->arguments)) {
|
|
|
1749 |
return array('list', ' ', $current->arguments);
|
|
|
1750 |
}
|
|
|
1751 |
|
|
|
1752 |
if (isset($current->store[$name]))
|
|
|
1753 |
return $current->store[$name];
|
|
|
1754 |
else {
|
|
|
1755 |
$current = isset($current->storeParent) ?
|
|
|
1756 |
$current->storeParent : $current->parent;
|
|
|
1757 |
}
|
|
|
1758 |
}
|
|
|
1759 |
|
|
|
1760 |
return $default;
|
|
|
1761 |
}
|
|
|
1762 |
|
|
|
1763 |
// inject array of unparsed strings into environment as variables
|
|
|
1764 |
protected function injectVariables($args) {
|
|
|
1765 |
$this->pushEnv();
|
|
|
1766 |
$parser = new lessc_parser($this, __METHOD__);
|
|
|
1767 |
foreach ($args as $name => $strValue) {
|
|
|
1768 |
if ($name{0} != '@') $name = '@'.$name;
|
|
|
1769 |
$parser->count = 0;
|
|
|
1770 |
$parser->buffer = (string)$strValue;
|
|
|
1771 |
if (!$parser->propertyValue($value)) {
|
|
|
1772 |
throw new Exception("failed to parse passed in variable $name: $strValue");
|
|
|
1773 |
}
|
|
|
1774 |
|
|
|
1775 |
$this->set($name, $value);
|
|
|
1776 |
}
|
|
|
1777 |
}
|
|
|
1778 |
|
|
|
1779 |
/**
|
|
|
1780 |
* Initialize any static state, can initialize parser for a file
|
|
|
1781 |
* $opts isn't used yet
|
|
|
1782 |
*/
|
|
|
1783 |
public function __construct($fname = null) {
|
|
|
1784 |
if ($fname !== null) {
|
|
|
1785 |
// used for deprecated parse method
|
|
|
1786 |
$this->_parseFile = $fname;
|
|
|
1787 |
}
|
|
|
1788 |
}
|
|
|
1789 |
|
|
|
1790 |
public function compile($string, $name = null) {
|
|
|
1791 |
$locale = setlocale(LC_NUMERIC, 0);
|
|
|
1792 |
setlocale(LC_NUMERIC, "C");
|
|
|
1793 |
|
|
|
1794 |
$this->parser = $this->makeParser($name);
|
|
|
1795 |
$root = $this->parser->parse($string);
|
|
|
1796 |
|
|
|
1797 |
$this->env = null;
|
|
|
1798 |
$this->scope = null;
|
|
|
1799 |
|
|
|
1800 |
$this->formatter = $this->newFormatter();
|
|
|
1801 |
|
|
|
1802 |
if (!empty($this->registeredVars)) {
|
|
|
1803 |
$this->injectVariables($this->registeredVars);
|
|
|
1804 |
}
|
|
|
1805 |
|
|
|
1806 |
$this->sourceParser = $this->parser; // used for error messages
|
|
|
1807 |
$this->compileBlock($root);
|
|
|
1808 |
|
|
|
1809 |
ob_start();
|
|
|
1810 |
$this->formatter->block($this->scope);
|
|
|
1811 |
$out = ob_get_clean();
|
|
|
1812 |
setlocale(LC_NUMERIC, $locale);
|
|
|
1813 |
return $out;
|
|
|
1814 |
}
|
|
|
1815 |
|
|
|
1816 |
public function compileFile($fname, $outFname = null) {
|
|
|
1817 |
if (!is_readable($fname)) {
|
|
|
1818 |
throw new Exception('load error: failed to find '.$fname);
|
|
|
1819 |
}
|
|
|
1820 |
|
|
|
1821 |
$pi = pathinfo($fname);
|
|
|
1822 |
|
|
|
1823 |
$oldImport = $this->importDir;
|
|
|
1824 |
|
|
|
1825 |
$this->importDir = (array)$this->importDir;
|
|
|
1826 |
$this->importDir[] = $pi['dirname'].'/';
|
|
|
1827 |
|
|
|
1828 |
$this->addParsedFile($fname);
|
|
|
1829 |
|
|
|
1830 |
$out = $this->compile(file_get_contents($fname), $fname);
|
|
|
1831 |
|
|
|
1832 |
$this->importDir = $oldImport;
|
|
|
1833 |
|
|
|
1834 |
if ($outFname !== null) {
|
|
|
1835 |
return file_put_contents($outFname, $out);
|
|
|
1836 |
}
|
|
|
1837 |
|
|
|
1838 |
return $out;
|
|
|
1839 |
}
|
|
|
1840 |
|
|
|
1841 |
// compile only if changed input has changed or output doesn't exist
|
|
|
1842 |
public function checkedCompile($in, $out) {
|
|
|
1843 |
if (!is_file($out) || filemtime($in) > filemtime($out)) {
|
|
|
1844 |
$this->compileFile($in, $out);
|
|
|
1845 |
return true;
|
|
|
1846 |
}
|
|
|
1847 |
return false;
|
|
|
1848 |
}
|
|
|
1849 |
|
|
|
1850 |
/**
|
|
|
1851 |
* Execute lessphp on a .less file or a lessphp cache structure
|
|
|
1852 |
*
|
|
|
1853 |
* The lessphp cache structure contains information about a specific
|
|
|
1854 |
* less file having been parsed. It can be used as a hint for future
|
|
|
1855 |
* calls to determine whether or not a rebuild is required.
|
|
|
1856 |
*
|
|
|
1857 |
* The cache structure contains two important keys that may be used
|
|
|
1858 |
* externally:
|
|
|
1859 |
*
|
|
|
1860 |
* compiled: The final compiled CSS
|
|
|
1861 |
* updated: The time (in seconds) the CSS was last compiled
|
|
|
1862 |
*
|
|
|
1863 |
* The cache structure is a plain-ol' PHP associative array and can
|
|
|
1864 |
* be serialized and unserialized without a hitch.
|
|
|
1865 |
*
|
|
|
1866 |
* @param mixed $in Input
|
|
|
1867 |
* @param bool $force Force rebuild?
|
|
|
1868 |
* @return array lessphp cache structure
|
|
|
1869 |
*/
|
|
|
1870 |
public function cachedCompile($in, $force = false) {
|
|
|
1871 |
// assume no root
|
|
|
1872 |
$root = null;
|
|
|
1873 |
|
|
|
1874 |
if (is_string($in)) {
|
|
|
1875 |
$root = $in;
|
|
|
1876 |
} elseif (is_array($in) and isset($in['root'])) {
|
|
|
1877 |
if ($force or ! isset($in['files'])) {
|
|
|
1878 |
// If we are forcing a recompile or if for some reason the
|
|
|
1879 |
// structure does not contain any file information we should
|
|
|
1880 |
// specify the root to trigger a rebuild.
|
|
|
1881 |
$root = $in['root'];
|
|
|
1882 |
} elseif (isset($in['files']) and is_array($in['files'])) {
|
|
|
1883 |
foreach ($in['files'] as $fname => $ftime ) {
|
|
|
1884 |
if (!file_exists($fname) or filemtime($fname) > $ftime) {
|
|
|
1885 |
// One of the files we knew about previously has changed
|
|
|
1886 |
// so we should look at our incoming root again.
|
|
|
1887 |
$root = $in['root'];
|
|
|
1888 |
break;
|
|
|
1889 |
}
|
|
|
1890 |
}
|
|
|
1891 |
}
|
|
|
1892 |
} else {
|
|
|
1893 |
// TODO: Throw an exception? We got neither a string nor something
|
|
|
1894 |
// that looks like a compatible lessphp cache structure.
|
|
|
1895 |
return null;
|
|
|
1896 |
}
|
|
|
1897 |
|
|
|
1898 |
if ($root !== null) {
|
|
|
1899 |
// If we have a root value which means we should rebuild.
|
|
|
1900 |
$out = array();
|
|
|
1901 |
$out['root'] = $root;
|
|
|
1902 |
$out['compiled'] = $this->compileFile($root);
|
|
|
1903 |
$out['files'] = $this->allParsedFiles();
|
|
|
1904 |
$out['updated'] = time();
|
|
|
1905 |
return $out;
|
|
|
1906 |
} else {
|
|
|
1907 |
// No changes, pass back the structure
|
|
|
1908 |
// we were given initially.
|
|
|
1909 |
return $in;
|
|
|
1910 |
}
|
|
|
1911 |
|
|
|
1912 |
}
|
|
|
1913 |
|
|
|
1914 |
// parse and compile buffer
|
|
|
1915 |
// This is deprecated
|
|
|
1916 |
public function parse($str = null, $initialVariables = null) {
|
|
|
1917 |
if (is_array($str)) {
|
|
|
1918 |
$initialVariables = $str;
|
|
|
1919 |
$str = null;
|
|
|
1920 |
}
|
|
|
1921 |
|
|
|
1922 |
$oldVars = $this->registeredVars;
|
|
|
1923 |
if ($initialVariables !== null) {
|
|
|
1924 |
$this->setVariables($initialVariables);
|
|
|
1925 |
}
|
|
|
1926 |
|
|
|
1927 |
if ($str == null) {
|
|
|
1928 |
if (empty($this->_parseFile)) {
|
|
|
1929 |
throw new exception("nothing to parse");
|
|
|
1930 |
}
|
|
|
1931 |
|
|
|
1932 |
$out = $this->compileFile($this->_parseFile);
|
|
|
1933 |
} else {
|
|
|
1934 |
$out = $this->compile($str);
|
|
|
1935 |
}
|
|
|
1936 |
|
|
|
1937 |
$this->registeredVars = $oldVars;
|
|
|
1938 |
return $out;
|
|
|
1939 |
}
|
|
|
1940 |
|
|
|
1941 |
protected function makeParser($name) {
|
|
|
1942 |
$parser = new lessc_parser($this, $name);
|
|
|
1943 |
$parser->writeComments = $this->preserveComments;
|
|
|
1944 |
|
|
|
1945 |
return $parser;
|
|
|
1946 |
}
|
|
|
1947 |
|
|
|
1948 |
public function setFormatter($name) {
|
|
|
1949 |
$this->formatterName = $name;
|
|
|
1950 |
}
|
|
|
1951 |
|
|
|
1952 |
protected function newFormatter() {
|
|
|
1953 |
$className = "lessc_formatter_lessjs";
|
|
|
1954 |
if (!empty($this->formatterName)) {
|
|
|
1955 |
if (!is_string($this->formatterName))
|
|
|
1956 |
return $this->formatterName;
|
|
|
1957 |
$className = "lessc_formatter_$this->formatterName";
|
|
|
1958 |
}
|
|
|
1959 |
|
|
|
1960 |
return new $className;
|
|
|
1961 |
}
|
|
|
1962 |
|
|
|
1963 |
public function setPreserveComments($preserve) {
|
|
|
1964 |
$this->preserveComments = $preserve;
|
|
|
1965 |
}
|
|
|
1966 |
|
|
|
1967 |
public function registerFunction($name, $func) {
|
|
|
1968 |
$this->libFunctions[$name] = $func;
|
|
|
1969 |
}
|
|
|
1970 |
|
|
|
1971 |
public function unregisterFunction($name) {
|
|
|
1972 |
unset($this->libFunctions[$name]);
|
|
|
1973 |
}
|
|
|
1974 |
|
|
|
1975 |
public function setVariables($variables) {
|
|
|
1976 |
$this->registeredVars = array_merge($this->registeredVars, $variables);
|
|
|
1977 |
}
|
|
|
1978 |
|
|
|
1979 |
public function unsetVariable($name) {
|
|
|
1980 |
unset($this->registeredVars[$name]);
|
|
|
1981 |
}
|
|
|
1982 |
|
|
|
1983 |
public function setImportDir($dirs) {
|
|
|
1984 |
$this->importDir = (array)$dirs;
|
|
|
1985 |
}
|
|
|
1986 |
|
|
|
1987 |
public function addImportDir($dir) {
|
|
|
1988 |
$this->importDir = (array)$this->importDir;
|
|
|
1989 |
$this->importDir[] = $dir;
|
|
|
1990 |
}
|
|
|
1991 |
|
|
|
1992 |
public function allParsedFiles() {
|
|
|
1993 |
return $this->allParsedFiles;
|
|
|
1994 |
}
|
|
|
1995 |
|
|
|
1996 |
protected function addParsedFile($file) {
|
|
|
1997 |
$this->allParsedFiles[realpath($file)] = filemtime($file);
|
|
|
1998 |
}
|
|
|
1999 |
|
|
|
2000 |
/**
|
|
|
2001 |
* Uses the current value of $this->count to show line and line number
|
|
|
2002 |
*/
|
|
|
2003 |
protected function throwError($msg = null) {
|
|
|
2004 |
if ($this->sourceLoc >= 0) {
|
|
|
2005 |
$this->sourceParser->throwError($msg, $this->sourceLoc);
|
|
|
2006 |
}
|
|
|
2007 |
throw new exception($msg);
|
|
|
2008 |
}
|
|
|
2009 |
|
|
|
2010 |
// compile file $in to file $out if $in is newer than $out
|
|
|
2011 |
// returns true when it compiles, false otherwise
|
|
|
2012 |
public static function ccompile($in, $out, $less = null) {
|
|
|
2013 |
if ($less === null) {
|
|
|
2014 |
$less = new self;
|
|
|
2015 |
}
|
|
|
2016 |
return $less->checkedCompile($in, $out);
|
|
|
2017 |
}
|
|
|
2018 |
|
|
|
2019 |
public static function cexecute($in, $force = false, $less = null) {
|
|
|
2020 |
if ($less === null) {
|
|
|
2021 |
$less = new self;
|
|
|
2022 |
}
|
|
|
2023 |
return $less->cachedCompile($in, $force);
|
|
|
2024 |
}
|
|
|
2025 |
|
|
|
2026 |
static protected $cssColors = array(
|
|
|
2027 |
'aliceblue' => '240,248,255',
|
|
|
2028 |
'antiquewhite' => '250,235,215',
|
|
|
2029 |
'aqua' => '0,255,255',
|
|
|
2030 |
'aquamarine' => '127,255,212',
|
|
|
2031 |
'azure' => '240,255,255',
|
|
|
2032 |
'beige' => '245,245,220',
|
|
|
2033 |
'bisque' => '255,228,196',
|
|
|
2034 |
'black' => '0,0,0',
|
|
|
2035 |
'blanchedalmond' => '255,235,205',
|
|
|
2036 |
'blue' => '0,0,255',
|
|
|
2037 |
'blueviolet' => '138,43,226',
|
|
|
2038 |
'brown' => '165,42,42',
|
|
|
2039 |
'burlywood' => '222,184,135',
|
|
|
2040 |
'cadetblue' => '95,158,160',
|
|
|
2041 |
'chartreuse' => '127,255,0',
|
|
|
2042 |
'chocolate' => '210,105,30',
|
|
|
2043 |
'coral' => '255,127,80',
|
|
|
2044 |
'cornflowerblue' => '100,149,237',
|
|
|
2045 |
'cornsilk' => '255,248,220',
|
|
|
2046 |
'crimson' => '220,20,60',
|
|
|
2047 |
'cyan' => '0,255,255',
|
|
|
2048 |
'darkblue' => '0,0,139',
|
|
|
2049 |
'darkcyan' => '0,139,139',
|
|
|
2050 |
'darkgoldenrod' => '184,134,11',
|
|
|
2051 |
'darkgray' => '169,169,169',
|
|
|
2052 |
'darkgreen' => '0,100,0',
|
|
|
2053 |
'darkgrey' => '169,169,169',
|
|
|
2054 |
'darkkhaki' => '189,183,107',
|
|
|
2055 |
'darkmagenta' => '139,0,139',
|
|
|
2056 |
'darkolivegreen' => '85,107,47',
|
|
|
2057 |
'darkorange' => '255,140,0',
|
|
|
2058 |
'darkorchid' => '153,50,204',
|
|
|
2059 |
'darkred' => '139,0,0',
|
|
|
2060 |
'darksalmon' => '233,150,122',
|
|
|
2061 |
'darkseagreen' => '143,188,143',
|
|
|
2062 |
'darkslateblue' => '72,61,139',
|
|
|
2063 |
'darkslategray' => '47,79,79',
|
|
|
2064 |
'darkslategrey' => '47,79,79',
|
|
|
2065 |
'darkturquoise' => '0,206,209',
|
|
|
2066 |
'darkviolet' => '148,0,211',
|
|
|
2067 |
'deeppink' => '255,20,147',
|
|
|
2068 |
'deepskyblue' => '0,191,255',
|
|
|
2069 |
'dimgray' => '105,105,105',
|
|
|
2070 |
'dimgrey' => '105,105,105',
|
|
|
2071 |
'dodgerblue' => '30,144,255',
|
|
|
2072 |
'firebrick' => '178,34,34',
|
|
|
2073 |
'floralwhite' => '255,250,240',
|
|
|
2074 |
'forestgreen' => '34,139,34',
|
|
|
2075 |
'fuchsia' => '255,0,255',
|
|
|
2076 |
'gainsboro' => '220,220,220',
|
|
|
2077 |
'ghostwhite' => '248,248,255',
|
|
|
2078 |
'gold' => '255,215,0',
|
|
|
2079 |
'goldenrod' => '218,165,32',
|
|
|
2080 |
'gray' => '128,128,128',
|
|
|
2081 |
'green' => '0,128,0',
|
|
|
2082 |
'greenyellow' => '173,255,47',
|
|
|
2083 |
'grey' => '128,128,128',
|
|
|
2084 |
'honeydew' => '240,255,240',
|
|
|
2085 |
'hotpink' => '255,105,180',
|
|
|
2086 |
'indianred' => '205,92,92',
|
|
|
2087 |
'indigo' => '75,0,130',
|
|
|
2088 |
'ivory' => '255,255,240',
|
|
|
2089 |
'khaki' => '240,230,140',
|
|
|
2090 |
'lavender' => '230,230,250',
|
|
|
2091 |
'lavenderblush' => '255,240,245',
|
|
|
2092 |
'lawngreen' => '124,252,0',
|
|
|
2093 |
'lemonchiffon' => '255,250,205',
|
|
|
2094 |
'lightblue' => '173,216,230',
|
|
|
2095 |
'lightcoral' => '240,128,128',
|
|
|
2096 |
'lightcyan' => '224,255,255',
|
|
|
2097 |
'lightgoldenrodyellow' => '250,250,210',
|
|
|
2098 |
'lightgray' => '211,211,211',
|
|
|
2099 |
'lightgreen' => '144,238,144',
|
|
|
2100 |
'lightgrey' => '211,211,211',
|
|
|
2101 |
'lightpink' => '255,182,193',
|
|
|
2102 |
'lightsalmon' => '255,160,122',
|
|
|
2103 |
'lightseagreen' => '32,178,170',
|
|
|
2104 |
'lightskyblue' => '135,206,250',
|
|
|
2105 |
'lightslategray' => '119,136,153',
|
|
|
2106 |
'lightslategrey' => '119,136,153',
|
|
|
2107 |
'lightsteelblue' => '176,196,222',
|
|
|
2108 |
'lightyellow' => '255,255,224',
|
|
|
2109 |
'lime' => '0,255,0',
|
|
|
2110 |
'limegreen' => '50,205,50',
|
|
|
2111 |
'linen' => '250,240,230',
|
|
|
2112 |
'magenta' => '255,0,255',
|
|
|
2113 |
'maroon' => '128,0,0',
|
|
|
2114 |
'mediumaquamarine' => '102,205,170',
|
|
|
2115 |
'mediumblue' => '0,0,205',
|
|
|
2116 |
'mediumorchid' => '186,85,211',
|
|
|
2117 |
'mediumpurple' => '147,112,219',
|
|
|
2118 |
'mediumseagreen' => '60,179,113',
|
|
|
2119 |
'mediumslateblue' => '123,104,238',
|
|
|
2120 |
'mediumspringgreen' => '0,250,154',
|
|
|
2121 |
'mediumturquoise' => '72,209,204',
|
|
|
2122 |
'mediumvioletred' => '199,21,133',
|
|
|
2123 |
'midnightblue' => '25,25,112',
|
|
|
2124 |
'mintcream' => '245,255,250',
|
|
|
2125 |
'mistyrose' => '255,228,225',
|
|
|
2126 |
'moccasin' => '255,228,181',
|
|
|
2127 |
'navajowhite' => '255,222,173',
|
|
|
2128 |
'navy' => '0,0,128',
|
|
|
2129 |
'oldlace' => '253,245,230',
|
|
|
2130 |
'olive' => '128,128,0',
|
|
|
2131 |
'olivedrab' => '107,142,35',
|
|
|
2132 |
'orange' => '255,165,0',
|
|
|
2133 |
'orangered' => '255,69,0',
|
|
|
2134 |
'orchid' => '218,112,214',
|
|
|
2135 |
'palegoldenrod' => '238,232,170',
|
|
|
2136 |
'palegreen' => '152,251,152',
|
|
|
2137 |
'paleturquoise' => '175,238,238',
|
|
|
2138 |
'palevioletred' => '219,112,147',
|
|
|
2139 |
'papayawhip' => '255,239,213',
|
|
|
2140 |
'peachpuff' => '255,218,185',
|
|
|
2141 |
'peru' => '205,133,63',
|
|
|
2142 |
'pink' => '255,192,203',
|
|
|
2143 |
'plum' => '221,160,221',
|
|
|
2144 |
'powderblue' => '176,224,230',
|
|
|
2145 |
'purple' => '128,0,128',
|
|
|
2146 |
'red' => '255,0,0',
|
|
|
2147 |
'rosybrown' => '188,143,143',
|
|
|
2148 |
'royalblue' => '65,105,225',
|
|
|
2149 |
'saddlebrown' => '139,69,19',
|
|
|
2150 |
'salmon' => '250,128,114',
|
|
|
2151 |
'sandybrown' => '244,164,96',
|
|
|
2152 |
'seagreen' => '46,139,87',
|
|
|
2153 |
'seashell' => '255,245,238',
|
|
|
2154 |
'sienna' => '160,82,45',
|
|
|
2155 |
'silver' => '192,192,192',
|
|
|
2156 |
'skyblue' => '135,206,235',
|
|
|
2157 |
'slateblue' => '106,90,205',
|
|
|
2158 |
'slategray' => '112,128,144',
|
|
|
2159 |
'slategrey' => '112,128,144',
|
|
|
2160 |
'snow' => '255,250,250',
|
|
|
2161 |
'springgreen' => '0,255,127',
|
|
|
2162 |
'steelblue' => '70,130,180',
|
|
|
2163 |
'tan' => '210,180,140',
|
|
|
2164 |
'teal' => '0,128,128',
|
|
|
2165 |
'thistle' => '216,191,216',
|
|
|
2166 |
'tomato' => '255,99,71',
|
|
|
2167 |
'transparent' => '0,0,0,0',
|
|
|
2168 |
'turquoise' => '64,224,208',
|
|
|
2169 |
'violet' => '238,130,238',
|
|
|
2170 |
'wheat' => '245,222,179',
|
|
|
2171 |
'white' => '255,255,255',
|
|
|
2172 |
'whitesmoke' => '245,245,245',
|
|
|
2173 |
'yellow' => '255,255,0',
|
|
|
2174 |
'yellowgreen' => '154,205,50'
|
|
|
2175 |
);
|
|
|
2176 |
}
|
|
|
2177 |
|
|
|
2178 |
// responsible for taking a string of LESS code and converting it into a
|
|
|
2179 |
// syntax tree
|
|
|
2180 |
class lessc_parser {
|
|
|
2181 |
static protected $nextBlockId = 0; // used to uniquely identify blocks
|
|
|
2182 |
|
|
|
2183 |
static protected $precedence = array(
|
|
|
2184 |
'=<' => 0,
|
|
|
2185 |
'>=' => 0,
|
|
|
2186 |
'=' => 0,
|
|
|
2187 |
'<' => 0,
|
|
|
2188 |
'>' => 0,
|
|
|
2189 |
|
|
|
2190 |
'+' => 1,
|
|
|
2191 |
'-' => 1,
|
|
|
2192 |
'*' => 2,
|
|
|
2193 |
'/' => 2,
|
|
|
2194 |
'%' => 2,
|
|
|
2195 |
);
|
|
|
2196 |
|
|
|
2197 |
static protected $whitePattern;
|
|
|
2198 |
static protected $commentMulti;
|
|
|
2199 |
|
|
|
2200 |
static protected $commentSingle = "//";
|
|
|
2201 |
static protected $commentMultiLeft = "/*";
|
|
|
2202 |
static protected $commentMultiRight = "*/";
|
|
|
2203 |
|
|
|
2204 |
// regex string to match any of the operators
|
|
|
2205 |
static protected $operatorString;
|
|
|
2206 |
|
|
|
2207 |
// these properties will supress division unless it's inside parenthases
|
|
|
2208 |
static protected $supressDivisionProps =
|
|
|
2209 |
array('/border-radius$/i', '/^font$/i');
|
|
|
2210 |
|
|
|
2211 |
protected $blockDirectives = array("font-face", "keyframes", "page", "-moz-document", "viewport", "-moz-viewport", "-o-viewport", "-ms-viewport");
|
|
|
2212 |
protected $lineDirectives = array("charset");
|
|
|
2213 |
|
|
|
2214 |
/**
|
|
|
2215 |
* if we are in parens we can be more liberal with whitespace around
|
|
|
2216 |
* operators because it must evaluate to a single value and thus is less
|
|
|
2217 |
* ambiguous.
|
|
|
2218 |
*
|
|
|
2219 |
* Consider:
|
|
|
2220 |
* property1: 10 -5; // is two numbers, 10 and -5
|
|
|
2221 |
* property2: (10 -5); // should evaluate to 5
|
|
|
2222 |
*/
|
|
|
2223 |
protected $inParens = false;
|
|
|
2224 |
|
|
|
2225 |
// caches preg escaped literals
|
|
|
2226 |
static protected $literalCache = array();
|
|
|
2227 |
|
|
|
2228 |
public function __construct($lessc, $sourceName = null) {
|
|
|
2229 |
$this->eatWhiteDefault = true;
|
|
|
2230 |
// reference to less needed for vPrefix, mPrefix, and parentSelector
|
|
|
2231 |
$this->lessc = $lessc;
|
|
|
2232 |
|
|
|
2233 |
$this->sourceName = $sourceName; // name used for error messages
|
|
|
2234 |
|
|
|
2235 |
$this->writeComments = false;
|
|
|
2236 |
|
|
|
2237 |
if (!self::$operatorString) {
|
|
|
2238 |
self::$operatorString =
|
|
|
2239 |
'('.implode('|', array_map(array('lessc', 'preg_quote'),
|
|
|
2240 |
array_keys(self::$precedence))).')';
|
|
|
2241 |
|
|
|
2242 |
$commentSingle = lessc::preg_quote(self::$commentSingle);
|
|
|
2243 |
$commentMultiLeft = lessc::preg_quote(self::$commentMultiLeft);
|
|
|
2244 |
$commentMultiRight = lessc::preg_quote(self::$commentMultiRight);
|
|
|
2245 |
|
|
|
2246 |
self::$commentMulti = $commentMultiLeft.'.*?'.$commentMultiRight;
|
|
|
2247 |
self::$whitePattern = '/'.$commentSingle.'[^\n]*\s*|('.self::$commentMulti.')\s*|\s+/Ais';
|
|
|
2248 |
}
|
|
|
2249 |
}
|
|
|
2250 |
|
|
|
2251 |
public function parse($buffer) {
|
|
|
2252 |
$this->count = 0;
|
|
|
2253 |
$this->line = 1;
|
|
|
2254 |
|
|
|
2255 |
$this->env = null; // block stack
|
|
|
2256 |
$this->buffer = $this->writeComments ? $buffer : $this->removeComments($buffer);
|
|
|
2257 |
$this->pushSpecialBlock("root");
|
|
|
2258 |
$this->eatWhiteDefault = true;
|
|
|
2259 |
$this->seenComments = array();
|
|
|
2260 |
|
|
|
2261 |
// trim whitespace on head
|
|
|
2262 |
// if (preg_match('/^\s+/', $this->buffer, $m)) {
|
|
|
2263 |
// $this->line += substr_count($m[0], "\n");
|
|
|
2264 |
// $this->buffer = ltrim($this->buffer);
|
|
|
2265 |
// }
|
|
|
2266 |
$this->whitespace();
|
|
|
2267 |
|
|
|
2268 |
// parse the entire file
|
|
|
2269 |
$lastCount = $this->count;
|
|
|
2270 |
while (false !== $this->parseChunk());
|
|
|
2271 |
|
|
|
2272 |
if ($this->count != strlen($this->buffer))
|
|
|
2273 |
$this->throwError();
|
|
|
2274 |
|
|
|
2275 |
// TODO report where the block was opened
|
|
|
2276 |
if (!is_null($this->env->parent))
|
|
|
2277 |
throw new exception('parse error: unclosed block');
|
|
|
2278 |
|
|
|
2279 |
return $this->env;
|
|
|
2280 |
}
|
|
|
2281 |
|
|
|
2282 |
/**
|
|
|
2283 |
* Parse a single chunk off the head of the buffer and append it to the
|
|
|
2284 |
* current parse environment.
|
|
|
2285 |
* Returns false when the buffer is empty, or when there is an error.
|
|
|
2286 |
*
|
|
|
2287 |
* This function is called repeatedly until the entire document is
|
|
|
2288 |
* parsed.
|
|
|
2289 |
*
|
|
|
2290 |
* This parser is most similar to a recursive descent parser. Single
|
|
|
2291 |
* functions represent discrete grammatical rules for the language, and
|
|
|
2292 |
* they are able to capture the text that represents those rules.
|
|
|
2293 |
*
|
|
|
2294 |
* Consider the function lessc::keyword(). (all parse functions are
|
|
|
2295 |
* structured the same)
|
|
|
2296 |
*
|
|
|
2297 |
* The function takes a single reference argument. When calling the
|
|
|
2298 |
* function it will attempt to match a keyword on the head of the buffer.
|
|
|
2299 |
* If it is successful, it will place the keyword in the referenced
|
|
|
2300 |
* argument, advance the position in the buffer, and return true. If it
|
|
|
2301 |
* fails then it won't advance the buffer and it will return false.
|
|
|
2302 |
*
|
|
|
2303 |
* All of these parse functions are powered by lessc::match(), which behaves
|
|
|
2304 |
* the same way, but takes a literal regular expression. Sometimes it is
|
|
|
2305 |
* more convenient to use match instead of creating a new function.
|
|
|
2306 |
*
|
|
|
2307 |
* Because of the format of the functions, to parse an entire string of
|
|
|
2308 |
* grammatical rules, you can chain them together using &&.
|
|
|
2309 |
*
|
|
|
2310 |
* But, if some of the rules in the chain succeed before one fails, then
|
|
|
2311 |
* the buffer position will be left at an invalid state. In order to
|
|
|
2312 |
* avoid this, lessc::seek() is used to remember and set buffer positions.
|
|
|
2313 |
*
|
|
|
2314 |
* Before parsing a chain, use $s = $this->seek() to remember the current
|
|
|
2315 |
* position into $s. Then if a chain fails, use $this->seek($s) to
|
|
|
2316 |
* go back where we started.
|
|
|
2317 |
*/
|
|
|
2318 |
protected function parseChunk() {
|
|
|
2319 |
if (empty($this->buffer)) return false;
|
|
|
2320 |
$s = $this->seek();
|
|
|
2321 |
|
|
|
2322 |
// setting a property
|
|
|
2323 |
if ($this->keyword($key) && $this->assign() &&
|
|
|
2324 |
$this->propertyValue($value, $key) && $this->end())
|
|
|
2325 |
{
|
|
|
2326 |
$this->append(array('assign', $key, $value), $s);
|
|
|
2327 |
return true;
|
|
|
2328 |
} else {
|
|
|
2329 |
$this->seek($s);
|
|
|
2330 |
}
|
|
|
2331 |
|
|
|
2332 |
|
|
|
2333 |
// look for special css blocks
|
|
|
2334 |
if ($this->literal('@', false)) {
|
|
|
2335 |
$this->count--;
|
|
|
2336 |
|
|
|
2337 |
// media
|
|
|
2338 |
if ($this->literal('@media')) {
|
|
|
2339 |
if (($this->mediaQueryList($mediaQueries) || true)
|
|
|
2340 |
&& $this->literal('{'))
|
|
|
2341 |
{
|
|
|
2342 |
$media = $this->pushSpecialBlock("media");
|
|
|
2343 |
$media->queries = is_null($mediaQueries) ? array() : $mediaQueries;
|
|
|
2344 |
return true;
|
|
|
2345 |
} else {
|
|
|
2346 |
$this->seek($s);
|
|
|
2347 |
return false;
|
|
|
2348 |
}
|
|
|
2349 |
}
|
|
|
2350 |
|
|
|
2351 |
if ($this->literal("@", false) && $this->keyword($dirName)) {
|
|
|
2352 |
if ($this->isDirective($dirName, $this->blockDirectives)) {
|
|
|
2353 |
if (($this->openString("{", $dirValue, null, array(";")) || true) &&
|
|
|
2354 |
$this->literal("{"))
|
|
|
2355 |
{
|
|
|
2356 |
$dir = $this->pushSpecialBlock("directive");
|
|
|
2357 |
$dir->name = $dirName;
|
|
|
2358 |
if (isset($dirValue)) $dir->value = $dirValue;
|
|
|
2359 |
return true;
|
|
|
2360 |
}
|
|
|
2361 |
} elseif ($this->isDirective($dirName, $this->lineDirectives)) {
|
|
|
2362 |
if ($this->propertyValue($dirValue) && $this->end()) {
|
|
|
2363 |
$this->append(array("directive", $dirName, $dirValue));
|
|
|
2364 |
return true;
|
|
|
2365 |
}
|
|
|
2366 |
}
|
|
|
2367 |
}
|
|
|
2368 |
|
|
|
2369 |
$this->seek($s);
|
|
|
2370 |
}
|
|
|
2371 |
|
|
|
2372 |
// setting a variable
|
|
|
2373 |
if ($this->variable($var) && $this->assign() &&
|
|
|
2374 |
$this->propertyValue($value) && $this->end())
|
|
|
2375 |
{
|
|
|
2376 |
$this->append(array('assign', $var, $value), $s);
|
|
|
2377 |
return true;
|
|
|
2378 |
} else {
|
|
|
2379 |
$this->seek($s);
|
|
|
2380 |
}
|
|
|
2381 |
|
|
|
2382 |
if ($this->import($importValue)) {
|
|
|
2383 |
$this->append($importValue, $s);
|
|
|
2384 |
return true;
|
|
|
2385 |
}
|
|
|
2386 |
|
|
|
2387 |
// opening parametric mixin
|
|
|
2388 |
if ($this->tag($tag, true) && $this->argumentDef($args, $isVararg) &&
|
|
|
2389 |
($this->guards($guards) || true) &&
|
|
|
2390 |
$this->literal('{'))
|
|
|
2391 |
{
|
|
|
2392 |
$block = $this->pushBlock($this->fixTags(array($tag)));
|
|
|
2393 |
$block->args = $args;
|
|
|
2394 |
$block->isVararg = $isVararg;
|
|
|
2395 |
if (!empty($guards)) $block->guards = $guards;
|
|
|
2396 |
return true;
|
|
|
2397 |
} else {
|
|
|
2398 |
$this->seek($s);
|
|
|
2399 |
}
|
|
|
2400 |
|
|
|
2401 |
// opening a simple block
|
|
|
2402 |
if ($this->tags($tags) && $this->literal('{')) {
|
|
|
2403 |
$tags = $this->fixTags($tags);
|
|
|
2404 |
$this->pushBlock($tags);
|
|
|
2405 |
return true;
|
|
|
2406 |
} else {
|
|
|
2407 |
$this->seek($s);
|
|
|
2408 |
}
|
|
|
2409 |
|
|
|
2410 |
// closing a block
|
|
|
2411 |
if ($this->literal('}', false)) {
|
|
|
2412 |
try {
|
|
|
2413 |
$block = $this->pop();
|
|
|
2414 |
} catch (exception $e) {
|
|
|
2415 |
$this->seek($s);
|
|
|
2416 |
$this->throwError($e->getMessage());
|
|
|
2417 |
}
|
|
|
2418 |
|
|
|
2419 |
$hidden = false;
|
|
|
2420 |
if (is_null($block->type)) {
|
|
|
2421 |
$hidden = true;
|
|
|
2422 |
if (!isset($block->args)) {
|
|
|
2423 |
foreach ($block->tags as $tag) {
|
|
|
2424 |
if (!is_string($tag) || $tag{0} != $this->lessc->mPrefix) {
|
|
|
2425 |
$hidden = false;
|
|
|
2426 |
break;
|
|
|
2427 |
}
|
|
|
2428 |
}
|
|
|
2429 |
}
|
|
|
2430 |
|
|
|
2431 |
foreach ($block->tags as $tag) {
|
|
|
2432 |
if (is_string($tag)) {
|
|
|
2433 |
$this->env->children[$tag][] = $block;
|
|
|
2434 |
}
|
|
|
2435 |
}
|
|
|
2436 |
}
|
|
|
2437 |
|
|
|
2438 |
if (!$hidden) {
|
|
|
2439 |
$this->append(array('block', $block), $s);
|
|
|
2440 |
}
|
|
|
2441 |
|
|
|
2442 |
// this is done here so comments aren't bundled into he block that
|
|
|
2443 |
// was just closed
|
|
|
2444 |
$this->whitespace();
|
|
|
2445 |
return true;
|
|
|
2446 |
}
|
|
|
2447 |
|
|
|
2448 |
// mixin
|
|
|
2449 |
if ($this->mixinTags($tags) &&
|
|
|
2450 |
($this->argumentDef($argv, $isVararg) || true) &&
|
|
|
2451 |
($this->keyword($suffix) || true) && $this->end())
|
|
|
2452 |
{
|
|
|
2453 |
$tags = $this->fixTags($tags);
|
|
|
2454 |
$this->append(array('mixin', $tags, $argv, $suffix), $s);
|
|
|
2455 |
return true;
|
|
|
2456 |
} else {
|
|
|
2457 |
$this->seek($s);
|
|
|
2458 |
}
|
|
|
2459 |
|
|
|
2460 |
// spare ;
|
|
|
2461 |
if ($this->literal(';')) return true;
|
|
|
2462 |
|
|
|
2463 |
return false; // got nothing, throw error
|
|
|
2464 |
}
|
|
|
2465 |
|
|
|
2466 |
protected function isDirective($dirname, $directives) {
|
|
|
2467 |
// TODO: cache pattern in parser
|
|
|
2468 |
$pattern = implode("|",
|
|
|
2469 |
array_map(array("lessc", "preg_quote"), $directives));
|
|
|
2470 |
$pattern = '/^(-[a-z-]+-)?(' . $pattern . ')$/i';
|
|
|
2471 |
|
|
|
2472 |
return preg_match($pattern, $dirname);
|
|
|
2473 |
}
|
|
|
2474 |
|
|
|
2475 |
protected function fixTags($tags) {
|
|
|
2476 |
// move @ tags out of variable namespace
|
|
|
2477 |
foreach ($tags as &$tag) {
|
|
|
2478 |
if ($tag{0} == $this->lessc->vPrefix)
|
|
|
2479 |
$tag[0] = $this->lessc->mPrefix;
|
|
|
2480 |
}
|
|
|
2481 |
return $tags;
|
|
|
2482 |
}
|
|
|
2483 |
|
|
|
2484 |
// a list of expressions
|
|
|
2485 |
protected function expressionList(&$exps) {
|
|
|
2486 |
$values = array();
|
|
|
2487 |
|
|
|
2488 |
while ($this->expression($exp)) {
|
|
|
2489 |
$values[] = $exp;
|
|
|
2490 |
}
|
|
|
2491 |
|
|
|
2492 |
if (count($values) == 0) return false;
|
|
|
2493 |
|
|
|
2494 |
$exps = lessc::compressList($values, ' ');
|
|
|
2495 |
return true;
|
|
|
2496 |
}
|
|
|
2497 |
|
|
|
2498 |
/**
|
|
|
2499 |
* Attempt to consume an expression.
|
|
|
2500 |
* @link http://en.wikipedia.org/wiki/Operator-precedence_parser#Pseudo-code
|
|
|
2501 |
*/
|
|
|
2502 |
protected function expression(&$out) {
|
|
|
2503 |
if ($this->value($lhs)) {
|
|
|
2504 |
$out = $this->expHelper($lhs, 0);
|
|
|
2505 |
|
|
|
2506 |
// look for / shorthand
|
|
|
2507 |
if (!empty($this->env->supressedDivision)) {
|
|
|
2508 |
unset($this->env->supressedDivision);
|
|
|
2509 |
$s = $this->seek();
|
|
|
2510 |
if ($this->literal("/") && $this->value($rhs)) {
|
|
|
2511 |
$out = array("list", "",
|
|
|
2512 |
array($out, array("keyword", "/"), $rhs));
|
|
|
2513 |
} else {
|
|
|
2514 |
$this->seek($s);
|
|
|
2515 |
}
|
|
|
2516 |
}
|
|
|
2517 |
|
|
|
2518 |
return true;
|
|
|
2519 |
}
|
|
|
2520 |
return false;
|
|
|
2521 |
}
|
|
|
2522 |
|
|
|
2523 |
/**
|
|
|
2524 |
* recursively parse infix equation with $lhs at precedence $minP
|
|
|
2525 |
*/
|
|
|
2526 |
protected function expHelper($lhs, $minP) {
|
|
|
2527 |
$this->inExp = true;
|
|
|
2528 |
$ss = $this->seek();
|
|
|
2529 |
|
|
|
2530 |
while (true) {
|
|
|
2531 |
$whiteBefore = isset($this->buffer[$this->count - 1]) &&
|
|
|
2532 |
ctype_space($this->buffer[$this->count - 1]);
|
|
|
2533 |
|
|
|
2534 |
// If there is whitespace before the operator, then we require
|
|
|
2535 |
// whitespace after the operator for it to be an expression
|
|
|
2536 |
$needWhite = $whiteBefore && !$this->inParens;
|
|
|
2537 |
|
|
|
2538 |
if ($this->match(self::$operatorString.($needWhite ? '\s' : ''), $m) && self::$precedence[$m[1]] >= $minP) {
|
|
|
2539 |
if (!$this->inParens && isset($this->env->currentProperty) && $m[1] == "/" && empty($this->env->supressedDivision)) {
|
|
|
2540 |
foreach (self::$supressDivisionProps as $pattern) {
|
|
|
2541 |
if (preg_match($pattern, $this->env->currentProperty)) {
|
|
|
2542 |
$this->env->supressedDivision = true;
|
|
|
2543 |
break 2;
|
|
|
2544 |
}
|
|
|
2545 |
}
|
|
|
2546 |
}
|
|
|
2547 |
|
|
|
2548 |
|
|
|
2549 |
$whiteAfter = isset($this->buffer[$this->count - 1]) &&
|
|
|
2550 |
ctype_space($this->buffer[$this->count - 1]);
|
|
|
2551 |
|
|
|
2552 |
if (!$this->value($rhs)) break;
|
|
|
2553 |
|
|
|
2554 |
// peek for next operator to see what to do with rhs
|
|
|
2555 |
if ($this->peek(self::$operatorString, $next) && self::$precedence[$next[1]] > self::$precedence[$m[1]]) {
|
|
|
2556 |
$rhs = $this->expHelper($rhs, self::$precedence[$next[1]]);
|
|
|
2557 |
}
|
|
|
2558 |
|
|
|
2559 |
$lhs = array('expression', $m[1], $lhs, $rhs, $whiteBefore, $whiteAfter);
|
|
|
2560 |
$ss = $this->seek();
|
|
|
2561 |
|
|
|
2562 |
continue;
|
|
|
2563 |
}
|
|
|
2564 |
|
|
|
2565 |
break;
|
|
|
2566 |
}
|
|
|
2567 |
|
|
|
2568 |
$this->seek($ss);
|
|
|
2569 |
|
|
|
2570 |
return $lhs;
|
|
|
2571 |
}
|
|
|
2572 |
|
|
|
2573 |
// consume a list of values for a property
|
|
|
2574 |
public function propertyValue(&$value, $keyName = null) {
|
|
|
2575 |
$values = array();
|
|
|
2576 |
|
|
|
2577 |
if ($keyName !== null) $this->env->currentProperty = $keyName;
|
|
|
2578 |
|
|
|
2579 |
$s = null;
|
|
|
2580 |
while ($this->expressionList($v)) {
|
|
|
2581 |
$values[] = $v;
|
|
|
2582 |
$s = $this->seek();
|
|
|
2583 |
if (!$this->literal(',')) break;
|
|
|
2584 |
}
|
|
|
2585 |
|
|
|
2586 |
if ($s) $this->seek($s);
|
|
|
2587 |
|
|
|
2588 |
if ($keyName !== null) unset($this->env->currentProperty);
|
|
|
2589 |
|
|
|
2590 |
if (count($values) == 0) return false;
|
|
|
2591 |
|
|
|
2592 |
$value = lessc::compressList($values, ', ');
|
|
|
2593 |
return true;
|
|
|
2594 |
}
|
|
|
2595 |
|
|
|
2596 |
protected function parenValue(&$out) {
|
|
|
2597 |
$s = $this->seek();
|
|
|
2598 |
|
|
|
2599 |
// speed shortcut
|
|
|
2600 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "(") {
|
|
|
2601 |
return false;
|
|
|
2602 |
}
|
|
|
2603 |
|
|
|
2604 |
$inParens = $this->inParens;
|
|
|
2605 |
if ($this->literal("(") &&
|
|
|
2606 |
($this->inParens = true) && $this->expression($exp) &&
|
|
|
2607 |
$this->literal(")"))
|
|
|
2608 |
{
|
|
|
2609 |
$out = $exp;
|
|
|
2610 |
$this->inParens = $inParens;
|
|
|
2611 |
return true;
|
|
|
2612 |
} else {
|
|
|
2613 |
$this->inParens = $inParens;
|
|
|
2614 |
$this->seek($s);
|
|
|
2615 |
}
|
|
|
2616 |
|
|
|
2617 |
return false;
|
|
|
2618 |
}
|
|
|
2619 |
|
|
|
2620 |
// a single value
|
|
|
2621 |
protected function value(&$value) {
|
|
|
2622 |
$s = $this->seek();
|
|
|
2623 |
|
|
|
2624 |
// speed shortcut
|
|
|
2625 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "-") {
|
|
|
2626 |
// negation
|
|
|
2627 |
if ($this->literal("-", false) &&
|
|
|
2628 |
(($this->variable($inner) && $inner = array("variable", $inner)) ||
|
|
|
2629 |
$this->unit($inner) ||
|
|
|
2630 |
$this->parenValue($inner)))
|
|
|
2631 |
{
|
|
|
2632 |
$value = array("unary", "-", $inner);
|
|
|
2633 |
return true;
|
|
|
2634 |
} else {
|
|
|
2635 |
$this->seek($s);
|
|
|
2636 |
}
|
|
|
2637 |
}
|
|
|
2638 |
|
|
|
2639 |
if ($this->parenValue($value)) return true;
|
|
|
2640 |
if ($this->unit($value)) return true;
|
|
|
2641 |
if ($this->color($value)) return true;
|
|
|
2642 |
if ($this->func($value)) return true;
|
|
|
2643 |
if ($this->string($value)) return true;
|
|
|
2644 |
|
|
|
2645 |
if ($this->keyword($word)) {
|
|
|
2646 |
$value = array('keyword', $word);
|
|
|
2647 |
return true;
|
|
|
2648 |
}
|
|
|
2649 |
|
|
|
2650 |
// try a variable
|
|
|
2651 |
if ($this->variable($var)) {
|
|
|
2652 |
$value = array('variable', $var);
|
|
|
2653 |
return true;
|
|
|
2654 |
}
|
|
|
2655 |
|
|
|
2656 |
// unquote string (should this work on any type?
|
|
|
2657 |
if ($this->literal("~") && $this->string($str)) {
|
|
|
2658 |
$value = array("escape", $str);
|
|
|
2659 |
return true;
|
|
|
2660 |
} else {
|
|
|
2661 |
$this->seek($s);
|
|
|
2662 |
}
|
|
|
2663 |
|
|
|
2664 |
// css hack: \0
|
|
|
2665 |
if ($this->literal('\\') && $this->match('([0-9]+)', $m)) {
|
|
|
2666 |
$value = array('keyword', '\\'.$m[1]);
|
|
|
2667 |
return true;
|
|
|
2668 |
} else {
|
|
|
2669 |
$this->seek($s);
|
|
|
2670 |
}
|
|
|
2671 |
|
|
|
2672 |
return false;
|
|
|
2673 |
}
|
|
|
2674 |
|
|
|
2675 |
// an import statement
|
|
|
2676 |
protected function import(&$out) {
|
|
|
2677 |
$s = $this->seek();
|
|
|
2678 |
if (!$this->literal('@import')) return false;
|
|
|
2679 |
|
|
|
2680 |
// @import "something.css" media;
|
|
|
2681 |
// @import url("something.css") media;
|
|
|
2682 |
// @import url(something.css) media;
|
|
|
2683 |
|
|
|
2684 |
if ($this->propertyValue($value)) {
|
|
|
2685 |
$out = array("import", $value);
|
|
|
2686 |
return true;
|
|
|
2687 |
}
|
|
|
2688 |
}
|
|
|
2689 |
|
|
|
2690 |
protected function mediaQueryList(&$out) {
|
|
|
2691 |
if ($this->genericList($list, "mediaQuery", ",", false)) {
|
|
|
2692 |
$out = $list[2];
|
|
|
2693 |
return true;
|
|
|
2694 |
}
|
|
|
2695 |
return false;
|
|
|
2696 |
}
|
|
|
2697 |
|
|
|
2698 |
protected function mediaQuery(&$out) {
|
|
|
2699 |
$s = $this->seek();
|
|
|
2700 |
|
|
|
2701 |
$expressions = null;
|
|
|
2702 |
$parts = array();
|
|
|
2703 |
|
|
|
2704 |
if (($this->literal("only") && ($only = true) || $this->literal("not") && ($not = true) || true) && $this->keyword($mediaType)) {
|
|
|
2705 |
$prop = array("mediaType");
|
|
|
2706 |
if (isset($only)) $prop[] = "only";
|
|
|
2707 |
if (isset($not)) $prop[] = "not";
|
|
|
2708 |
$prop[] = $mediaType;
|
|
|
2709 |
$parts[] = $prop;
|
|
|
2710 |
} else {
|
|
|
2711 |
$this->seek($s);
|
|
|
2712 |
}
|
|
|
2713 |
|
|
|
2714 |
|
|
|
2715 |
if (!empty($mediaType) && !$this->literal("and")) {
|
|
|
2716 |
// ~
|
|
|
2717 |
} else {
|
|
|
2718 |
$this->genericList($expressions, "mediaExpression", "and", false);
|
|
|
2719 |
if (is_array($expressions)) $parts = array_merge($parts, $expressions[2]);
|
|
|
2720 |
}
|
|
|
2721 |
|
|
|
2722 |
if (count($parts) == 0) {
|
|
|
2723 |
$this->seek($s);
|
|
|
2724 |
return false;
|
|
|
2725 |
}
|
|
|
2726 |
|
|
|
2727 |
$out = $parts;
|
|
|
2728 |
return true;
|
|
|
2729 |
}
|
|
|
2730 |
|
|
|
2731 |
protected function mediaExpression(&$out) {
|
|
|
2732 |
$s = $this->seek();
|
|
|
2733 |
$value = null;
|
|
|
2734 |
if ($this->literal("(") &&
|
|
|
2735 |
$this->keyword($feature) &&
|
|
|
2736 |
($this->literal(":") && $this->expression($value) || true) &&
|
|
|
2737 |
$this->literal(")"))
|
|
|
2738 |
{
|
|
|
2739 |
$out = array("mediaExp", $feature);
|
|
|
2740 |
if ($value) $out[] = $value;
|
|
|
2741 |
return true;
|
|
|
2742 |
} elseif ($this->variable($variable)) {
|
|
|
2743 |
$out = array('variable', $variable);
|
|
|
2744 |
return true;
|
|
|
2745 |
}
|
|
|
2746 |
|
|
|
2747 |
$this->seek($s);
|
|
|
2748 |
return false;
|
|
|
2749 |
}
|
|
|
2750 |
|
|
|
2751 |
// an unbounded string stopped by $end
|
|
|
2752 |
protected function openString($end, &$out, $nestingOpen=null, $rejectStrs = null) {
|
|
|
2753 |
$oldWhite = $this->eatWhiteDefault;
|
|
|
2754 |
$this->eatWhiteDefault = false;
|
|
|
2755 |
|
|
|
2756 |
$stop = array("'", '"', "@{", $end);
|
|
|
2757 |
$stop = array_map(array("lessc", "preg_quote"), $stop);
|
|
|
2758 |
// $stop[] = self::$commentMulti;
|
|
|
2759 |
|
|
|
2760 |
if (!is_null($rejectStrs)) {
|
|
|
2761 |
$stop = array_merge($stop, $rejectStrs);
|
|
|
2762 |
}
|
|
|
2763 |
|
|
|
2764 |
$patt = '(.*?)('.implode("|", $stop).')';
|
|
|
2765 |
|
|
|
2766 |
$nestingLevel = 0;
|
|
|
2767 |
|
|
|
2768 |
$content = array();
|
|
|
2769 |
while ($this->match($patt, $m, false)) {
|
|
|
2770 |
if (!empty($m[1])) {
|
|
|
2771 |
$content[] = $m[1];
|
|
|
2772 |
if ($nestingOpen) {
|
|
|
2773 |
$nestingLevel += substr_count($m[1], $nestingOpen);
|
|
|
2774 |
}
|
|
|
2775 |
}
|
|
|
2776 |
|
|
|
2777 |
$tok = $m[2];
|
|
|
2778 |
|
|
|
2779 |
$this->count-= strlen($tok);
|
|
|
2780 |
if ($tok == $end) {
|
|
|
2781 |
if ($nestingLevel == 0) {
|
|
|
2782 |
break;
|
|
|
2783 |
} else {
|
|
|
2784 |
$nestingLevel--;
|
|
|
2785 |
}
|
|
|
2786 |
}
|
|
|
2787 |
|
|
|
2788 |
if (($tok == "'" || $tok == '"') && $this->string($str)) {
|
|
|
2789 |
$content[] = $str;
|
|
|
2790 |
continue;
|
|
|
2791 |
}
|
|
|
2792 |
|
|
|
2793 |
if ($tok == "@{" && $this->interpolation($inter)) {
|
|
|
2794 |
$content[] = $inter;
|
|
|
2795 |
continue;
|
|
|
2796 |
}
|
|
|
2797 |
|
|
|
2798 |
if (!empty($rejectStrs) && in_array($tok, $rejectStrs)) {
|
|
|
2799 |
break;
|
|
|
2800 |
}
|
|
|
2801 |
|
|
|
2802 |
$content[] = $tok;
|
|
|
2803 |
$this->count+= strlen($tok);
|
|
|
2804 |
}
|
|
|
2805 |
|
|
|
2806 |
$this->eatWhiteDefault = $oldWhite;
|
|
|
2807 |
|
|
|
2808 |
if (count($content) == 0) return false;
|
|
|
2809 |
|
|
|
2810 |
// trim the end
|
|
|
2811 |
if (is_string(end($content))) {
|
|
|
2812 |
$content[count($content) - 1] = rtrim(end($content));
|
|
|
2813 |
}
|
|
|
2814 |
|
|
|
2815 |
$out = array("string", "", $content);
|
|
|
2816 |
return true;
|
|
|
2817 |
}
|
|
|
2818 |
|
|
|
2819 |
protected function string(&$out) {
|
|
|
2820 |
$s = $this->seek();
|
|
|
2821 |
if ($this->literal('"', false)) {
|
|
|
2822 |
$delim = '"';
|
|
|
2823 |
} elseif ($this->literal("'", false)) {
|
|
|
2824 |
$delim = "'";
|
|
|
2825 |
} else {
|
|
|
2826 |
return false;
|
|
|
2827 |
}
|
|
|
2828 |
|
|
|
2829 |
$content = array();
|
|
|
2830 |
|
|
|
2831 |
// look for either ending delim , escape, or string interpolation
|
|
|
2832 |
$patt = '([^\n]*?)(@\{|\\\\|' .
|
|
|
2833 |
lessc::preg_quote($delim).')';
|
|
|
2834 |
|
|
|
2835 |
$oldWhite = $this->eatWhiteDefault;
|
|
|
2836 |
$this->eatWhiteDefault = false;
|
|
|
2837 |
|
|
|
2838 |
while ($this->match($patt, $m, false)) {
|
|
|
2839 |
$content[] = $m[1];
|
|
|
2840 |
if ($m[2] == "@{") {
|
|
|
2841 |
$this->count -= strlen($m[2]);
|
|
|
2842 |
if ($this->interpolation($inter, false)) {
|
|
|
2843 |
$content[] = $inter;
|
|
|
2844 |
} else {
|
|
|
2845 |
$this->count += strlen($m[2]);
|
|
|
2846 |
$content[] = "@{"; // ignore it
|
|
|
2847 |
}
|
|
|
2848 |
} elseif ($m[2] == '\\') {
|
|
|
2849 |
$content[] = $m[2];
|
|
|
2850 |
if ($this->literal($delim, false)) {
|
|
|
2851 |
$content[] = $delim;
|
|
|
2852 |
}
|
|
|
2853 |
} else {
|
|
|
2854 |
$this->count -= strlen($delim);
|
|
|
2855 |
break; // delim
|
|
|
2856 |
}
|
|
|
2857 |
}
|
|
|
2858 |
|
|
|
2859 |
$this->eatWhiteDefault = $oldWhite;
|
|
|
2860 |
|
|
|
2861 |
if ($this->literal($delim)) {
|
|
|
2862 |
$out = array("string", $delim, $content);
|
|
|
2863 |
return true;
|
|
|
2864 |
}
|
|
|
2865 |
|
|
|
2866 |
$this->seek($s);
|
|
|
2867 |
return false;
|
|
|
2868 |
}
|
|
|
2869 |
|
|
|
2870 |
protected function interpolation(&$out) {
|
|
|
2871 |
$oldWhite = $this->eatWhiteDefault;
|
|
|
2872 |
$this->eatWhiteDefault = true;
|
|
|
2873 |
|
|
|
2874 |
$s = $this->seek();
|
|
|
2875 |
if ($this->literal("@{") &&
|
|
|
2876 |
$this->openString("}", $interp, null, array("'", '"', ";")) &&
|
|
|
2877 |
$this->literal("}", false))
|
|
|
2878 |
{
|
|
|
2879 |
$out = array("interpolate", $interp);
|
|
|
2880 |
$this->eatWhiteDefault = $oldWhite;
|
|
|
2881 |
if ($this->eatWhiteDefault) $this->whitespace();
|
|
|
2882 |
return true;
|
|
|
2883 |
}
|
|
|
2884 |
|
|
|
2885 |
$this->eatWhiteDefault = $oldWhite;
|
|
|
2886 |
$this->seek($s);
|
|
|
2887 |
return false;
|
|
|
2888 |
}
|
|
|
2889 |
|
|
|
2890 |
protected function unit(&$unit) {
|
|
|
2891 |
// speed shortcut
|
|
|
2892 |
if (isset($this->buffer[$this->count])) {
|
|
|
2893 |
$char = $this->buffer[$this->count];
|
|
|
2894 |
if (!ctype_digit($char) && $char != ".") return false;
|
|
|
2895 |
}
|
|
|
2896 |
|
|
|
2897 |
if ($this->match('([0-9]+(?:\.[0-9]*)?|\.[0-9]+)([%a-zA-Z]+)?', $m)) {
|
|
|
2898 |
$unit = array("number", $m[1], empty($m[2]) ? "" : $m[2]);
|
|
|
2899 |
return true;
|
|
|
2900 |
}
|
|
|
2901 |
return false;
|
|
|
2902 |
}
|
|
|
2903 |
|
|
|
2904 |
// a # color
|
|
|
2905 |
protected function color(&$out) {
|
|
|
2906 |
if ($this->match('(#(?:[0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{3}))', $m)) {
|
|
|
2907 |
if (strlen($m[1]) > 7) {
|
|
|
2908 |
$out = array("string", "", array($m[1]));
|
|
|
2909 |
} else {
|
|
|
2910 |
$out = array("raw_color", $m[1]);
|
|
|
2911 |
}
|
|
|
2912 |
return true;
|
|
|
2913 |
}
|
|
|
2914 |
|
|
|
2915 |
return false;
|
|
|
2916 |
}
|
|
|
2917 |
|
|
|
2918 |
// consume an argument definition list surrounded by ()
|
|
|
2919 |
// each argument is a variable name with optional value
|
|
|
2920 |
// or at the end a ... or a variable named followed by ...
|
|
|
2921 |
// arguments are separated by , unless a ; is in the list, then ; is the
|
|
|
2922 |
// delimiter.
|
|
|
2923 |
protected function argumentDef(&$args, &$isVararg) {
|
|
|
2924 |
$s = $this->seek();
|
|
|
2925 |
if (!$this->literal('(')) return false;
|
|
|
2926 |
|
|
|
2927 |
$values = array();
|
|
|
2928 |
$delim = ",";
|
|
|
2929 |
$method = "expressionList";
|
|
|
2930 |
|
|
|
2931 |
$isVararg = false;
|
|
|
2932 |
while (true) {
|
|
|
2933 |
if ($this->literal("...")) {
|
|
|
2934 |
$isVararg = true;
|
|
|
2935 |
break;
|
|
|
2936 |
}
|
|
|
2937 |
|
|
|
2938 |
if ($this->$method($value)) {
|
|
|
2939 |
if ($value[0] == "variable") {
|
|
|
2940 |
$arg = array("arg", $value[1]);
|
|
|
2941 |
$ss = $this->seek();
|
|
|
2942 |
|
|
|
2943 |
if ($this->assign() && $this->$method($rhs)) {
|
|
|
2944 |
$arg[] = $rhs;
|
|
|
2945 |
} else {
|
|
|
2946 |
$this->seek($ss);
|
|
|
2947 |
if ($this->literal("...")) {
|
|
|
2948 |
$arg[0] = "rest";
|
|
|
2949 |
$isVararg = true;
|
|
|
2950 |
}
|
|
|
2951 |
}
|
|
|
2952 |
|
|
|
2953 |
$values[] = $arg;
|
|
|
2954 |
if ($isVararg) break;
|
|
|
2955 |
continue;
|
|
|
2956 |
} else {
|
|
|
2957 |
$values[] = array("lit", $value);
|
|
|
2958 |
}
|
|
|
2959 |
}
|
|
|
2960 |
|
|
|
2961 |
|
|
|
2962 |
if (!$this->literal($delim)) {
|
|
|
2963 |
if ($delim == "," && $this->literal(";")) {
|
|
|
2964 |
// found new delim, convert existing args
|
|
|
2965 |
$delim = ";";
|
|
|
2966 |
$method = "propertyValue";
|
|
|
2967 |
|
|
|
2968 |
// transform arg list
|
|
|
2969 |
if (isset($values[1])) { // 2 items
|
|
|
2970 |
$newList = array();
|
|
|
2971 |
foreach ($values as $i => $arg) {
|
|
|
2972 |
switch($arg[0]) {
|
|
|
2973 |
case "arg":
|
|
|
2974 |
if ($i) {
|
|
|
2975 |
$this->throwError("Cannot mix ; and , as delimiter types");
|
|
|
2976 |
}
|
|
|
2977 |
$newList[] = $arg[2];
|
|
|
2978 |
break;
|
|
|
2979 |
case "lit":
|
|
|
2980 |
$newList[] = $arg[1];
|
|
|
2981 |
break;
|
|
|
2982 |
case "rest":
|
|
|
2983 |
$this->throwError("Unexpected rest before semicolon");
|
|
|
2984 |
}
|
|
|
2985 |
}
|
|
|
2986 |
|
|
|
2987 |
$newList = array("list", ", ", $newList);
|
|
|
2988 |
|
|
|
2989 |
switch ($values[0][0]) {
|
|
|
2990 |
case "arg":
|
|
|
2991 |
$newArg = array("arg", $values[0][1], $newList);
|
|
|
2992 |
break;
|
|
|
2993 |
case "lit":
|
|
|
2994 |
$newArg = array("lit", $newList);
|
|
|
2995 |
break;
|
|
|
2996 |
}
|
|
|
2997 |
|
|
|
2998 |
} elseif ($values) { // 1 item
|
|
|
2999 |
$newArg = $values[0];
|
|
|
3000 |
}
|
|
|
3001 |
|
|
|
3002 |
if ($newArg) {
|
|
|
3003 |
$values = array($newArg);
|
|
|
3004 |
}
|
|
|
3005 |
} else {
|
|
|
3006 |
break;
|
|
|
3007 |
}
|
|
|
3008 |
}
|
|
|
3009 |
}
|
|
|
3010 |
|
|
|
3011 |
if (!$this->literal(')')) {
|
|
|
3012 |
$this->seek($s);
|
|
|
3013 |
return false;
|
|
|
3014 |
}
|
|
|
3015 |
|
|
|
3016 |
$args = $values;
|
|
|
3017 |
|
|
|
3018 |
return true;
|
|
|
3019 |
}
|
|
|
3020 |
|
|
|
3021 |
// consume a list of tags
|
|
|
3022 |
// this accepts a hanging delimiter
|
|
|
3023 |
protected function tags(&$tags, $simple = false, $delim = ',') {
|
|
|
3024 |
$tags = array();
|
|
|
3025 |
while ($this->tag($tt, $simple)) {
|
|
|
3026 |
$tags[] = $tt;
|
|
|
3027 |
if (!$this->literal($delim)) break;
|
|
|
3028 |
}
|
|
|
3029 |
if (count($tags) == 0) return false;
|
|
|
3030 |
|
|
|
3031 |
return true;
|
|
|
3032 |
}
|
|
|
3033 |
|
|
|
3034 |
// list of tags of specifying mixin path
|
|
|
3035 |
// optionally separated by > (lazy, accepts extra >)
|
|
|
3036 |
protected function mixinTags(&$tags) {
|
|
|
3037 |
$s = $this->seek();
|
|
|
3038 |
$tags = array();
|
|
|
3039 |
while ($this->tag($tt, true)) {
|
|
|
3040 |
$tags[] = $tt;
|
|
|
3041 |
$this->literal(">");
|
|
|
3042 |
}
|
|
|
3043 |
|
|
|
3044 |
if (count($tags) == 0) return false;
|
|
|
3045 |
|
|
|
3046 |
return true;
|
|
|
3047 |
}
|
|
|
3048 |
|
|
|
3049 |
// a bracketed value (contained within in a tag definition)
|
|
|
3050 |
protected function tagBracket(&$parts, &$hasExpression) {
|
|
|
3051 |
// speed shortcut
|
|
|
3052 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "[") {
|
|
|
3053 |
return false;
|
|
|
3054 |
}
|
|
|
3055 |
|
|
|
3056 |
$s = $this->seek();
|
|
|
3057 |
|
|
|
3058 |
$hasInterpolation = false;
|
|
|
3059 |
|
|
|
3060 |
if ($this->literal("[", false)) {
|
|
|
3061 |
$attrParts = array("[");
|
|
|
3062 |
// keyword, string, operator
|
|
|
3063 |
while (true) {
|
|
|
3064 |
if ($this->literal("]", false)) {
|
|
|
3065 |
$this->count--;
|
|
|
3066 |
break; // get out early
|
|
|
3067 |
}
|
|
|
3068 |
|
|
|
3069 |
if ($this->match('\s+', $m)) {
|
|
|
3070 |
$attrParts[] = " ";
|
|
|
3071 |
continue;
|
|
|
3072 |
}
|
|
|
3073 |
if ($this->string($str)) {
|
|
|
3074 |
// escape parent selector, (yuck)
|
|
|
3075 |
foreach ($str[2] as &$chunk) {
|
|
|
3076 |
$chunk = str_replace($this->lessc->parentSelector, "$&$", $chunk);
|
|
|
3077 |
}
|
|
|
3078 |
|
|
|
3079 |
$attrParts[] = $str;
|
|
|
3080 |
$hasInterpolation = true;
|
|
|
3081 |
continue;
|
|
|
3082 |
}
|
|
|
3083 |
|
|
|
3084 |
if ($this->keyword($word)) {
|
|
|
3085 |
$attrParts[] = $word;
|
|
|
3086 |
continue;
|
|
|
3087 |
}
|
|
|
3088 |
|
|
|
3089 |
if ($this->interpolation($inter, false)) {
|
|
|
3090 |
$attrParts[] = $inter;
|
|
|
3091 |
$hasInterpolation = true;
|
|
|
3092 |
continue;
|
|
|
3093 |
}
|
|
|
3094 |
|
|
|
3095 |
// operator, handles attr namespace too
|
|
|
3096 |
if ($this->match('[|-~\$\*\^=]+', $m)) {
|
|
|
3097 |
$attrParts[] = $m[0];
|
|
|
3098 |
continue;
|
|
|
3099 |
}
|
|
|
3100 |
|
|
|
3101 |
break;
|
|
|
3102 |
}
|
|
|
3103 |
|
|
|
3104 |
if ($this->literal("]", false)) {
|
|
|
3105 |
$attrParts[] = "]";
|
|
|
3106 |
foreach ($attrParts as $part) {
|
|
|
3107 |
$parts[] = $part;
|
|
|
3108 |
}
|
|
|
3109 |
$hasExpression = $hasExpression || $hasInterpolation;
|
|
|
3110 |
return true;
|
|
|
3111 |
}
|
|
|
3112 |
$this->seek($s);
|
|
|
3113 |
}
|
|
|
3114 |
|
|
|
3115 |
$this->seek($s);
|
|
|
3116 |
return false;
|
|
|
3117 |
}
|
|
|
3118 |
|
|
|
3119 |
// a space separated list of selectors
|
|
|
3120 |
protected function tag(&$tag, $simple = false) {
|
|
|
3121 |
if ($simple)
|
|
|
3122 |
$chars = '^@,:;{}\][>\(\) "\'';
|
|
|
3123 |
else
|
|
|
3124 |
$chars = '^@,;{}["\'';
|
|
|
3125 |
|
|
|
3126 |
$s = $this->seek();
|
|
|
3127 |
|
|
|
3128 |
$hasExpression = false;
|
|
|
3129 |
$parts = array();
|
|
|
3130 |
while ($this->tagBracket($parts, $hasExpression));
|
|
|
3131 |
|
|
|
3132 |
$oldWhite = $this->eatWhiteDefault;
|
|
|
3133 |
$this->eatWhiteDefault = false;
|
|
|
3134 |
|
|
|
3135 |
while (true) {
|
|
|
3136 |
if ($this->match('(['.$chars.'0-9]['.$chars.']*)', $m)) {
|
|
|
3137 |
$parts[] = $m[1];
|
|
|
3138 |
if ($simple) break;
|
|
|
3139 |
|
|
|
3140 |
while ($this->tagBracket($parts, $hasExpression));
|
|
|
3141 |
continue;
|
|
|
3142 |
}
|
|
|
3143 |
|
|
|
3144 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "@") {
|
|
|
3145 |
if ($this->interpolation($interp)) {
|
|
|
3146 |
$hasExpression = true;
|
|
|
3147 |
$interp[2] = true; // don't unescape
|
|
|
3148 |
$parts[] = $interp;
|
|
|
3149 |
continue;
|
|
|
3150 |
}
|
|
|
3151 |
|
|
|
3152 |
if ($this->literal("@")) {
|
|
|
3153 |
$parts[] = "@";
|
|
|
3154 |
continue;
|
|
|
3155 |
}
|
|
|
3156 |
}
|
|
|
3157 |
|
|
|
3158 |
if ($this->unit($unit)) { // for keyframes
|
|
|
3159 |
$parts[] = $unit[1];
|
|
|
3160 |
$parts[] = $unit[2];
|
|
|
3161 |
continue;
|
|
|
3162 |
}
|
|
|
3163 |
|
|
|
3164 |
break;
|
|
|
3165 |
}
|
|
|
3166 |
|
|
|
3167 |
$this->eatWhiteDefault = $oldWhite;
|
|
|
3168 |
if (!$parts) {
|
|
|
3169 |
$this->seek($s);
|
|
|
3170 |
return false;
|
|
|
3171 |
}
|
|
|
3172 |
|
|
|
3173 |
if ($hasExpression) {
|
|
|
3174 |
$tag = array("exp", array("string", "", $parts));
|
|
|
3175 |
} else {
|
|
|
3176 |
$tag = trim(implode($parts));
|
|
|
3177 |
}
|
|
|
3178 |
|
|
|
3179 |
$this->whitespace();
|
|
|
3180 |
return true;
|
|
|
3181 |
}
|
|
|
3182 |
|
|
|
3183 |
// a css function
|
|
|
3184 |
protected function func(&$func) {
|
|
|
3185 |
$s = $this->seek();
|
|
|
3186 |
|
|
|
3187 |
if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m) && $this->literal('(')) {
|
|
|
3188 |
$fname = $m[1];
|
|
|
3189 |
|
|
|
3190 |
$sPreArgs = $this->seek();
|
|
|
3191 |
|
|
|
3192 |
$args = array();
|
|
|
3193 |
while (true) {
|
|
|
3194 |
$ss = $this->seek();
|
|
|
3195 |
// this ugly nonsense is for ie filter properties
|
|
|
3196 |
if ($this->keyword($name) && $this->literal('=') && $this->expressionList($value)) {
|
|
|
3197 |
$args[] = array("string", "", array($name, "=", $value));
|
|
|
3198 |
} else {
|
|
|
3199 |
$this->seek($ss);
|
|
|
3200 |
if ($this->expressionList($value)) {
|
|
|
3201 |
$args[] = $value;
|
|
|
3202 |
}
|
|
|
3203 |
}
|
|
|
3204 |
|
|
|
3205 |
if (!$this->literal(',')) break;
|
|
|
3206 |
}
|
|
|
3207 |
$args = array('list', ',', $args);
|
|
|
3208 |
|
|
|
3209 |
if ($this->literal(')')) {
|
|
|
3210 |
$func = array('function', $fname, $args);
|
|
|
3211 |
return true;
|
|
|
3212 |
} elseif ($fname == 'url') {
|
|
|
3213 |
// couldn't parse and in url? treat as string
|
|
|
3214 |
$this->seek($sPreArgs);
|
|
|
3215 |
if ($this->openString(")", $string) && $this->literal(")")) {
|
|
|
3216 |
$func = array('function', $fname, $string);
|
|
|
3217 |
return true;
|
|
|
3218 |
}
|
|
|
3219 |
}
|
|
|
3220 |
}
|
|
|
3221 |
|
|
|
3222 |
$this->seek($s);
|
|
|
3223 |
return false;
|
|
|
3224 |
}
|
|
|
3225 |
|
|
|
3226 |
// consume a less variable
|
|
|
3227 |
protected function variable(&$name) {
|
|
|
3228 |
$s = $this->seek();
|
|
|
3229 |
if ($this->literal($this->lessc->vPrefix, false) &&
|
|
|
3230 |
($this->variable($sub) || $this->keyword($name)))
|
|
|
3231 |
{
|
|
|
3232 |
if (!empty($sub)) {
|
|
|
3233 |
$name = array('variable', $sub);
|
|
|
3234 |
} else {
|
|
|
3235 |
$name = $this->lessc->vPrefix.$name;
|
|
|
3236 |
}
|
|
|
3237 |
return true;
|
|
|
3238 |
}
|
|
|
3239 |
|
|
|
3240 |
$name = null;
|
|
|
3241 |
$this->seek($s);
|
|
|
3242 |
return false;
|
|
|
3243 |
}
|
|
|
3244 |
|
|
|
3245 |
/**
|
|
|
3246 |
* Consume an assignment operator
|
|
|
3247 |
* Can optionally take a name that will be set to the current property name
|
|
|
3248 |
*/
|
|
|
3249 |
protected function assign($name = null) {
|
|
|
3250 |
if ($name) $this->currentProperty = $name;
|
|
|
3251 |
return $this->literal(':') || $this->literal('=');
|
|
|
3252 |
}
|
|
|
3253 |
|
|
|
3254 |
// consume a keyword
|
|
|
3255 |
protected function keyword(&$word) {
|
|
|
3256 |
if ($this->match('([\w_\-\*!"][\w\-_"]*)', $m)) {
|
|
|
3257 |
$word = $m[1];
|
|
|
3258 |
return true;
|
|
|
3259 |
}
|
|
|
3260 |
return false;
|
|
|
3261 |
}
|
|
|
3262 |
|
|
|
3263 |
// consume an end of statement delimiter
|
|
|
3264 |
protected function end() {
|
|
|
3265 |
if ($this->literal(';')) {
|
|
|
3266 |
return true;
|
|
|
3267 |
} elseif ($this->count == strlen($this->buffer) || $this->buffer[$this->count] == '}') {
|
|
|
3268 |
// if there is end of file or a closing block next then we don't need a ;
|
|
|
3269 |
return true;
|
|
|
3270 |
}
|
|
|
3271 |
return false;
|
|
|
3272 |
}
|
|
|
3273 |
|
|
|
3274 |
protected function guards(&$guards) {
|
|
|
3275 |
$s = $this->seek();
|
|
|
3276 |
|
|
|
3277 |
if (!$this->literal("when")) {
|
|
|
3278 |
$this->seek($s);
|
|
|
3279 |
return false;
|
|
|
3280 |
}
|
|
|
3281 |
|
|
|
3282 |
$guards = array();
|
|
|
3283 |
|
|
|
3284 |
while ($this->guardGroup($g)) {
|
|
|
3285 |
$guards[] = $g;
|
|
|
3286 |
if (!$this->literal(",")) break;
|
|
|
3287 |
}
|
|
|
3288 |
|
|
|
3289 |
if (count($guards) == 0) {
|
|
|
3290 |
$guards = null;
|
|
|
3291 |
$this->seek($s);
|
|
|
3292 |
return false;
|
|
|
3293 |
}
|
|
|
3294 |
|
|
|
3295 |
return true;
|
|
|
3296 |
}
|
|
|
3297 |
|
|
|
3298 |
// a bunch of guards that are and'd together
|
|
|
3299 |
// TODO rename to guardGroup
|
|
|
3300 |
protected function guardGroup(&$guardGroup) {
|
|
|
3301 |
$s = $this->seek();
|
|
|
3302 |
$guardGroup = array();
|
|
|
3303 |
while ($this->guard($guard)) {
|
|
|
3304 |
$guardGroup[] = $guard;
|
|
|
3305 |
if (!$this->literal("and")) break;
|
|
|
3306 |
}
|
|
|
3307 |
|
|
|
3308 |
if (count($guardGroup) == 0) {
|
|
|
3309 |
$guardGroup = null;
|
|
|
3310 |
$this->seek($s);
|
|
|
3311 |
return false;
|
|
|
3312 |
}
|
|
|
3313 |
|
|
|
3314 |
return true;
|
|
|
3315 |
}
|
|
|
3316 |
|
|
|
3317 |
protected function guard(&$guard) {
|
|
|
3318 |
$s = $this->seek();
|
|
|
3319 |
$negate = $this->literal("not");
|
|
|
3320 |
|
|
|
3321 |
if ($this->literal("(") && $this->expression($exp) && $this->literal(")")) {
|
|
|
3322 |
$guard = $exp;
|
|
|
3323 |
if ($negate) $guard = array("negate", $guard);
|
|
|
3324 |
return true;
|
|
|
3325 |
}
|
|
|
3326 |
|
|
|
3327 |
$this->seek($s);
|
|
|
3328 |
return false;
|
|
|
3329 |
}
|
|
|
3330 |
|
|
|
3331 |
/* raw parsing functions */
|
|
|
3332 |
|
|
|
3333 |
protected function literal($what, $eatWhitespace = null) {
|
|
|
3334 |
if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault;
|
|
|
3335 |
|
|
|
3336 |
// shortcut on single letter
|
|
|
3337 |
if (!isset($what[1]) && isset($this->buffer[$this->count])) {
|
|
|
3338 |
if ($this->buffer[$this->count] == $what) {
|
|
|
3339 |
if (!$eatWhitespace) {
|
|
|
3340 |
$this->count++;
|
|
|
3341 |
return true;
|
|
|
3342 |
}
|
|
|
3343 |
// goes below...
|
|
|
3344 |
} else {
|
|
|
3345 |
return false;
|
|
|
3346 |
}
|
|
|
3347 |
}
|
|
|
3348 |
|
|
|
3349 |
if (!isset(self::$literalCache[$what])) {
|
|
|
3350 |
self::$literalCache[$what] = lessc::preg_quote($what);
|
|
|
3351 |
}
|
|
|
3352 |
|
|
|
3353 |
return $this->match(self::$literalCache[$what], $m, $eatWhitespace);
|
|
|
3354 |
}
|
|
|
3355 |
|
|
|
3356 |
protected function genericList(&$out, $parseItem, $delim="", $flatten=true) {
|
|
|
3357 |
$s = $this->seek();
|
|
|
3358 |
$items = array();
|
|
|
3359 |
while ($this->$parseItem($value)) {
|
|
|
3360 |
$items[] = $value;
|
|
|
3361 |
if ($delim) {
|
|
|
3362 |
if (!$this->literal($delim)) break;
|
|
|
3363 |
}
|
|
|
3364 |
}
|
|
|
3365 |
|
|
|
3366 |
if (count($items) == 0) {
|
|
|
3367 |
$this->seek($s);
|
|
|
3368 |
return false;
|
|
|
3369 |
}
|
|
|
3370 |
|
|
|
3371 |
if ($flatten && count($items) == 1) {
|
|
|
3372 |
$out = $items[0];
|
|
|
3373 |
} else {
|
|
|
3374 |
$out = array("list", $delim, $items);
|
|
|
3375 |
}
|
|
|
3376 |
|
|
|
3377 |
return true;
|
|
|
3378 |
}
|
|
|
3379 |
|
|
|
3380 |
|
|
|
3381 |
// advance counter to next occurrence of $what
|
|
|
3382 |
// $until - don't include $what in advance
|
|
|
3383 |
// $allowNewline, if string, will be used as valid char set
|
|
|
3384 |
protected function to($what, &$out, $until = false, $allowNewline = false) {
|
|
|
3385 |
if (is_string($allowNewline)) {
|
|
|
3386 |
$validChars = $allowNewline;
|
|
|
3387 |
} else {
|
|
|
3388 |
$validChars = $allowNewline ? "." : "[^\n]";
|
|
|
3389 |
}
|
|
|
3390 |
if (!$this->match('('.$validChars.'*?)'.lessc::preg_quote($what), $m, !$until)) return false;
|
|
|
3391 |
if ($until) $this->count -= strlen($what); // give back $what
|
|
|
3392 |
$out = $m[1];
|
|
|
3393 |
return true;
|
|
|
3394 |
}
|
|
|
3395 |
|
|
|
3396 |
// try to match something on head of buffer
|
|
|
3397 |
protected function match($regex, &$out, $eatWhitespace = null) {
|
|
|
3398 |
if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault;
|
|
|
3399 |
|
|
|
3400 |
$r = '/'.$regex.($eatWhitespace && !$this->writeComments ? '\s*' : '').'/Ais';
|
|
|
3401 |
if (preg_match($r, $this->buffer, $out, null, $this->count)) {
|
|
|
3402 |
$this->count += strlen($out[0]);
|
|
|
3403 |
if ($eatWhitespace && $this->writeComments) $this->whitespace();
|
|
|
3404 |
return true;
|
|
|
3405 |
}
|
|
|
3406 |
return false;
|
|
|
3407 |
}
|
|
|
3408 |
|
|
|
3409 |
// match some whitespace
|
|
|
3410 |
protected function whitespace() {
|
|
|
3411 |
if ($this->writeComments) {
|
|
|
3412 |
$gotWhite = false;
|
|
|
3413 |
while (preg_match(self::$whitePattern, $this->buffer, $m, null, $this->count)) {
|
|
|
3414 |
if (isset($m[1]) && empty($this->commentsSeen[$this->count])) {
|
|
|
3415 |
$this->append(array("comment", $m[1]));
|
|
|
3416 |
$this->commentsSeen[$this->count] = true;
|
|
|
3417 |
}
|
|
|
3418 |
$this->count += strlen($m[0]);
|
|
|
3419 |
$gotWhite = true;
|
|
|
3420 |
}
|
|
|
3421 |
return $gotWhite;
|
|
|
3422 |
} else {
|
|
|
3423 |
$this->match("", $m);
|
|
|
3424 |
return strlen($m[0]) > 0;
|
|
|
3425 |
}
|
|
|
3426 |
}
|
|
|
3427 |
|
|
|
3428 |
// match something without consuming it
|
|
|
3429 |
protected function peek($regex, &$out = null, $from=null) {
|
|
|
3430 |
if (is_null($from)) $from = $this->count;
|
|
|
3431 |
$r = '/'.$regex.'/Ais';
|
|
|
3432 |
$result = preg_match($r, $this->buffer, $out, null, $from);
|
|
|
3433 |
|
|
|
3434 |
return $result;
|
|
|
3435 |
}
|
|
|
3436 |
|
|
|
3437 |
// seek to a spot in the buffer or return where we are on no argument
|
|
|
3438 |
protected function seek($where = null) {
|
|
|
3439 |
if ($where === null) return $this->count;
|
|
|
3440 |
else $this->count = $where;
|
|
|
3441 |
return true;
|
|
|
3442 |
}
|
|
|
3443 |
|
|
|
3444 |
/* misc functions */
|
|
|
3445 |
|
|
|
3446 |
public function throwError($msg = "parse error", $count = null) {
|
|
|
3447 |
$count = is_null($count) ? $this->count : $count;
|
|
|
3448 |
|
|
|
3449 |
$line = $this->line +
|
|
|
3450 |
substr_count(substr($this->buffer, 0, $count), "\n");
|
|
|
3451 |
|
|
|
3452 |
if (!empty($this->sourceName)) {
|
|
|
3453 |
$loc = "$this->sourceName on line $line";
|
|
|
3454 |
} else {
|
|
|
3455 |
$loc = "line: $line";
|
|
|
3456 |
}
|
|
|
3457 |
|
|
|
3458 |
// TODO this depends on $this->count
|
|
|
3459 |
if ($this->peek("(.*?)(\n|$)", $m, $count)) {
|
|
|
3460 |
throw new exception("$msg: failed at `$m[1]` $loc");
|
|
|
3461 |
} else {
|
|
|
3462 |
throw new exception("$msg: $loc");
|
|
|
3463 |
}
|
|
|
3464 |
}
|
|
|
3465 |
|
|
|
3466 |
protected function pushBlock($selectors=null, $type=null) {
|
|
|
3467 |
$b = new stdclass;
|
|
|
3468 |
$b->parent = $this->env;
|
|
|
3469 |
|
|
|
3470 |
$b->type = $type;
|
|
|
3471 |
$b->id = self::$nextBlockId++;
|
|
|
3472 |
|
|
|
3473 |
$b->isVararg = false; // TODO: kill me from here
|
|
|
3474 |
$b->tags = $selectors;
|
|
|
3475 |
|
|
|
3476 |
$b->props = array();
|
|
|
3477 |
$b->children = array();
|
|
|
3478 |
|
|
|
3479 |
$this->env = $b;
|
|
|
3480 |
return $b;
|
|
|
3481 |
}
|
|
|
3482 |
|
|
|
3483 |
// push a block that doesn't multiply tags
|
|
|
3484 |
protected function pushSpecialBlock($type) {
|
|
|
3485 |
return $this->pushBlock(null, $type);
|
|
|
3486 |
}
|
|
|
3487 |
|
|
|
3488 |
// append a property to the current block
|
|
|
3489 |
protected function append($prop, $pos = null) {
|
|
|
3490 |
if ($pos !== null) $prop[-1] = $pos;
|
|
|
3491 |
$this->env->props[] = $prop;
|
|
|
3492 |
}
|
|
|
3493 |
|
|
|
3494 |
// pop something off the stack
|
|
|
3495 |
protected function pop() {
|
|
|
3496 |
$old = $this->env;
|
|
|
3497 |
$this->env = $this->env->parent;
|
|
|
3498 |
return $old;
|
|
|
3499 |
}
|
|
|
3500 |
|
|
|
3501 |
// remove comments from $text
|
|
|
3502 |
// todo: make it work for all functions, not just url
|
|
|
3503 |
protected function removeComments($text) {
|
|
|
3504 |
$look = array(
|
|
|
3505 |
'url(', '//', '/*', '"', "'"
|
|
|
3506 |
);
|
|
|
3507 |
|
|
|
3508 |
$out = '';
|
|
|
3509 |
$min = null;
|
|
|
3510 |
while (true) {
|
|
|
3511 |
// find the next item
|
|
|
3512 |
foreach ($look as $token) {
|
|
|
3513 |
$pos = strpos($text, $token);
|
|
|
3514 |
if ($pos !== false) {
|
|
|
3515 |
if (!isset($min) || $pos < $min[1]) $min = array($token, $pos);
|
|
|
3516 |
}
|
|
|
3517 |
}
|
|
|
3518 |
|
|
|
3519 |
if (is_null($min)) break;
|
|
|
3520 |
|
|
|
3521 |
$count = $min[1];
|
|
|
3522 |
$skip = 0;
|
|
|
3523 |
$newlines = 0;
|
|
|
3524 |
switch ($min[0]) {
|
|
|
3525 |
case 'url(':
|
|
|
3526 |
if (preg_match('/url\(.*?\)/', $text, $m, 0, $count))
|
|
|
3527 |
$count += strlen($m[0]) - strlen($min[0]);
|
|
|
3528 |
break;
|
|
|
3529 |
case '"':
|
|
|
3530 |
case "'":
|
|
|
3531 |
if (preg_match('/'.$min[0].'.*?(?<!\\\\)'.$min[0].'/', $text, $m, 0, $count))
|
|
|
3532 |
$count += strlen($m[0]) - 1;
|
|
|
3533 |
break;
|
|
|
3534 |
case '//':
|
|
|
3535 |
$skip = strpos($text, "\n", $count);
|
|
|
3536 |
if ($skip === false) $skip = strlen($text) - $count;
|
|
|
3537 |
else $skip -= $count;
|
|
|
3538 |
break;
|
|
|
3539 |
case '/*':
|
|
|
3540 |
if (preg_match('/\/\*.*?\*\//s', $text, $m, 0, $count)) {
|
|
|
3541 |
$skip = strlen($m[0]);
|
|
|
3542 |
$newlines = substr_count($m[0], "\n");
|
|
|
3543 |
}
|
|
|
3544 |
break;
|
|
|
3545 |
}
|
|
|
3546 |
|
|
|
3547 |
if ($skip == 0) $count += strlen($min[0]);
|
|
|
3548 |
|
|
|
3549 |
$out .= substr($text, 0, $count).str_repeat("\n", $newlines);
|
|
|
3550 |
$text = substr($text, $count + $skip);
|
|
|
3551 |
|
|
|
3552 |
$min = null;
|
|
|
3553 |
}
|
|
|
3554 |
|
|
|
3555 |
return $out.$text;
|
|
|
3556 |
}
|
|
|
3557 |
|
|
|
3558 |
}
|
|
|
3559 |
|
|
|
3560 |
class lessc_formatter_classic {
|
|
|
3561 |
public $indentChar = " ";
|
|
|
3562 |
|
|
|
3563 |
public $break = "\n";
|
|
|
3564 |
public $open = " {";
|
|
|
3565 |
public $close = "}";
|
|
|
3566 |
public $selectorSeparator = ", ";
|
|
|
3567 |
public $assignSeparator = ":";
|
|
|
3568 |
|
|
|
3569 |
public $openSingle = " { ";
|
|
|
3570 |
public $closeSingle = " }";
|
|
|
3571 |
|
|
|
3572 |
public $disableSingle = false;
|
|
|
3573 |
public $breakSelectors = false;
|
|
|
3574 |
|
|
|
3575 |
public $compressColors = false;
|
|
|
3576 |
|
|
|
3577 |
public function __construct() {
|
|
|
3578 |
$this->indentLevel = 0;
|
|
|
3579 |
}
|
|
|
3580 |
|
|
|
3581 |
public function indentStr($n = 0) {
|
|
|
3582 |
return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
|
|
|
3583 |
}
|
|
|
3584 |
|
|
|
3585 |
public function property($name, $value) {
|
|
|
3586 |
return $name . $this->assignSeparator . $value . ";";
|
|
|
3587 |
}
|
|
|
3588 |
|
|
|
3589 |
protected function isEmpty($block) {
|
|
|
3590 |
if (empty($block->lines)) {
|
|
|
3591 |
foreach ($block->children as $child) {
|
|
|
3592 |
if (!$this->isEmpty($child)) return false;
|
|
|
3593 |
}
|
|
|
3594 |
|
|
|
3595 |
return true;
|
|
|
3596 |
}
|
|
|
3597 |
return false;
|
|
|
3598 |
}
|
|
|
3599 |
|
|
|
3600 |
public function block($block) {
|
|
|
3601 |
if ($this->isEmpty($block)) return;
|
|
|
3602 |
|
|
|
3603 |
$inner = $pre = $this->indentStr();
|
|
|
3604 |
|
|
|
3605 |
$isSingle = !$this->disableSingle &&
|
|
|
3606 |
is_null($block->type) && count($block->lines) == 1;
|
|
|
3607 |
|
|
|
3608 |
if (!empty($block->selectors)) {
|
|
|
3609 |
$this->indentLevel++;
|
|
|
3610 |
|
|
|
3611 |
if ($this->breakSelectors) {
|
|
|
3612 |
$selectorSeparator = $this->selectorSeparator . $this->break . $pre;
|
|
|
3613 |
} else {
|
|
|
3614 |
$selectorSeparator = $this->selectorSeparator;
|
|
|
3615 |
}
|
|
|
3616 |
|
|
|
3617 |
echo $pre .
|
|
|
3618 |
implode($selectorSeparator, $block->selectors);
|
|
|
3619 |
if ($isSingle) {
|
|
|
3620 |
echo $this->openSingle;
|
|
|
3621 |
$inner = "";
|
|
|
3622 |
} else {
|
|
|
3623 |
echo $this->open . $this->break;
|
|
|
3624 |
$inner = $this->indentStr();
|
|
|
3625 |
}
|
|
|
3626 |
|
|
|
3627 |
}
|
|
|
3628 |
|
|
|
3629 |
if (!empty($block->lines)) {
|
|
|
3630 |
$glue = $this->break.$inner;
|
|
|
3631 |
echo $inner . implode($glue, $block->lines);
|
|
|
3632 |
if (!$isSingle && !empty($block->children)) {
|
|
|
3633 |
echo $this->break;
|
|
|
3634 |
}
|
|
|
3635 |
}
|
|
|
3636 |
|
|
|
3637 |
foreach ($block->children as $child) {
|
|
|
3638 |
$this->block($child);
|
|
|
3639 |
}
|
|
|
3640 |
|
|
|
3641 |
if (!empty($block->selectors)) {
|
|
|
3642 |
if (!$isSingle && empty($block->children)) echo $this->break;
|
|
|
3643 |
|
|
|
3644 |
if ($isSingle) {
|
|
|
3645 |
echo $this->closeSingle . $this->break;
|
|
|
3646 |
} else {
|
|
|
3647 |
echo $pre . $this->close . $this->break;
|
|
|
3648 |
}
|
|
|
3649 |
|
|
|
3650 |
$this->indentLevel--;
|
|
|
3651 |
}
|
|
|
3652 |
}
|
|
|
3653 |
}
|
|
|
3654 |
|
|
|
3655 |
class lessc_formatter_compressed extends lessc_formatter_classic {
|
|
|
3656 |
public $disableSingle = true;
|
|
|
3657 |
public $open = "{";
|
|
|
3658 |
public $selectorSeparator = ",";
|
|
|
3659 |
public $assignSeparator = ":";
|
|
|
3660 |
public $break = "";
|
|
|
3661 |
public $compressColors = true;
|
|
|
3662 |
|
|
|
3663 |
public function indentStr($n = 0) {
|
|
|
3664 |
return "";
|
|
|
3665 |
}
|
|
|
3666 |
}
|
|
|
3667 |
|
|
|
3668 |
class lessc_formatter_lessjs extends lessc_formatter_classic {
|
|
|
3669 |
public $disableSingle = true;
|
|
|
3670 |
public $breakSelectors = true;
|
|
|
3671 |
public $assignSeparator = ": ";
|
|
|
3672 |
public $selectorSeparator = ",";
|
|
|
3673 |
}
|
|
|
3674 |
|
|
|
3675 |
|