| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* lessphp v0.5.5 |
| 5 |
* http://leafo.net/lessphp |
| 6 |
* |
| 7 |
* LESS CSS compiler, adapted from http://lesscss.org |
| 8 |
* |
| 9 |
* Copyright 2013, Leaf Corcoran <[email protected]> |
| 10 |
* Copyright 2016, Marcus Schwarz <[email protected]> |
| 11 |
* Licensed under MIT or GPLv3, see LICENSE |
| 12 |
*/ |
| 13 |
|
| 14 |
|
| 15 |
/** |
| 16 |
* The LESS compiler and parser. |
| 17 |
* |
| 18 |
* Converting LESS to CSS is a three stage process. The incoming file is parsed |
| 19 |
* by `lessc_parser` into a syntax tree, then it is compiled into another tree |
| 20 |
* representing the CSS structure by `lessc`. The CSS tree is fed into a |
| 21 |
* formatter, like `lessc_formatter` which then outputs CSS as a string. |
| 22 |
* |
| 23 |
* During the first compile, all values are *reduced*, which means that their |
| 24 |
* types are brought to the lowest form before being dump as strings. This |
| 25 |
* handles math equations, variable dereferences, and the like. |
| 26 |
* |
| 27 |
* The `parse` function of `lessc` is the entry point. |
| 28 |
* |
| 29 |
* In summary: |
| 30 |
* |
| 31 |
* The `lessc` class creates an instance of the parser, feeds it LESS code, |
| 32 |
* then transforms the resulting tree to a CSS tree. This class also holds the |
| 33 |
* evaluation context, such as all available mixins and variables at any given |
| 34 |
* time. |
| 35 |
* |
| 36 |
* The `lessc_parser` class is only concerned with parsing its input. |
| 37 |
* |
| 38 |
* The `lessc_formatter` takes a CSS tree, and dumps it to a formatted string, |
| 39 |
* handling things like indentation. |
| 40 |
*/ |
| 41 |
class lessc { |
| 42 |
static public $VERSION = "v0.5.5"; |
| 43 |
|
| 44 |
static public $TRUE = array("keyword", "true"); |
| 45 |
static public $FALSE = array("keyword", "false"); |
| 46 |
|
| 47 |
protected $libFunctions = array(); |
| 48 |
protected $registeredVars = array(); |
| 49 |
protected $preserveComments = false; |
| 50 |
|
| 51 |
public $vPrefix = '@'; // prefix of abstract properties |
| 52 |
public $mPrefix = '$'; // prefix of abstract blocks |
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public $parentSelector = '&'; |
| 54 |
|
| 55 |
static public $lengths = array( "px", "m", "cm", "mm", "in", "pt", "pc" ); |
| 56 |
static public $times = array( "s", "ms" ); |
| 57 |
static public $angles = array( "rad", "deg", "grad", "turn" ); |
| 58 |
|
| 59 |
static public $lengths_to_base = array( 1, 3779.52755906, 37.79527559, 3.77952756, 96, 1.33333333, 16 ); |
| 60 |
public $importDisabled = false; |
| 61 |
public $importDir = array(); |
| 62 |
|
| 63 |
protected $numberPrecision = null; |
| 64 |
|
| 65 |
protected $allParsedFiles = array(); |
| 66 |
|
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// set to the parser that generated the current line when compiling |
| 68 |
// so we know how to create error messages |
| 69 |
protected $sourceParser = null; |
| 70 |
protected $sourceLoc = null; |
| 71 |
|
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static protected $nextImportId = 0; // uniquely identify imports |
| 73 |
|
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// attempts to find the path of an import url, returns null for css files |
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protected function findImport($url) { |
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foreach ((array)$this->importDir as $dir) { |
| 77 |
$full = $dir.(substr($dir, -1) != '/' ? '/' : '').$url; |
| 78 |
if ($this->fileExists($file = $full.'.less') || $this->fileExists($file = $full)) { |
| 79 |
return $file; |
| 80 |
} |
| 81 |
} |
| 82 |
|
| 83 |
return null; |
| 84 |
} |
| 85 |
|
| 86 |
protected function fileExists($name) { |
| 87 |
return is_file($name); |
| 88 |
} |
| 89 |
|
| 90 |
static public function compressList($items, $delim) { |
| 91 |
if (!isset($items[1]) && isset($items[0])) return $items[0]; |
| 92 |
else return array('list', $delim, $items); |
| 93 |
} |
| 94 |
|
| 95 |
static public function preg_quote($what) { |
| 96 |
return preg_quote($what, '/'); |
| 97 |
} |
| 98 |
|
| 99 |
protected function tryImport($importPath, $parentBlock, $out) { |
| 100 |
if ($importPath[0] == "function" && $importPath[1] == "url") { |
| 101 |
$importPath = $this->flattenList($importPath[2]); |
| 102 |
} |
| 103 |
|
| 104 |
$str = $this->coerceString($importPath); |
| 105 |
if ($str === null) return false; |
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|
| 107 |
$url = $this->compileValue($this->lib_e($str)); |
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|
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// don't import if it ends in css |
| 110 |
if (substr_compare($url, '.css', -4, 4) === 0) return false; |
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|
| 112 |
$realPath = $this->findImport($url); |
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|
| 114 |
if ($realPath === null) return false; |
| 115 |
|
| 116 |
if ($this->importDisabled) { |
| 117 |
return array(false, "/* import disabled */"); |
| 118 |
} |
| 119 |
|
| 120 |
if (isset($this->allParsedFiles[realpath($realPath)])) { |
| 121 |
return array(false, null); |
| 122 |
} |
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|
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$this->addParsedFile($realPath); |
| 125 |
$parser = $this->makeParser($realPath); |
| 126 |
$root = $parser->parse(file_get_contents($realPath)); |
| 127 |
|
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// set the parents of all the block props |
| 129 |
foreach ($root->props as $prop) { |
| 130 |
if ($prop[0] == "block") { |
| 131 |
$prop[1]->parent = $parentBlock; |
| 132 |
} |
| 133 |
} |
| 134 |
|
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// copy mixins into scope, set their parents |
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// bring blocks from import into current block |
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// TODO: need to mark the source parser these came from this file |
| 138 |
foreach ($root->children as $childName => $child) { |
| 139 |
if (isset($parentBlock->children[$childName])) { |
| 140 |
$parentBlock->children[$childName] = array_merge( |
| 141 |
$parentBlock->children[$childName], |
| 142 |
$child); |
| 143 |
} else { |
| 144 |
$parentBlock->children[$childName] = $child; |
| 145 |
} |
| 146 |
} |
| 147 |
|
| 148 |
$pi = pathinfo($realPath); |
| 149 |
$dir = $pi["dirname"]; |
| 150 |
|
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list($top, $bottom) = $this->sortProps($root->props, true); |
| 152 |
$this->compileImportedProps($top, $parentBlock, $out, $parser, $dir); |
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|
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return array(true, $bottom, $parser, $dir); |
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} |
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|
| 157 |
protected function compileImportedProps($props, $block, $out, $sourceParser, $importDir) { |
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$oldSourceParser = $this->sourceParser; |
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|
| 160 |
$oldImport = $this->importDir; |
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|
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// TODO: this is because the importDir api is stupid |
| 163 |
$this->importDir = (array)$this->importDir; |
| 164 |
array_unshift($this->importDir, $importDir); |
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|
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foreach ($props as $prop) { |
| 167 |
$this->compileProp($prop, $block, $out); |
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} |
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|
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$this->importDir = $oldImport; |
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$this->sourceParser = $oldSourceParser; |
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} |
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|
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/** |
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* Recursively compiles a block. |
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* |
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* A block is analogous to a CSS block in most cases. A single LESS document |
| 178 |
* is encapsulated in a block when parsed, but it does not have parent tags |
| 179 |
* so all of it's children appear on the root level when compiled. |
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* |
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* Blocks are made up of props and children. |
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* |
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* Props are property instructions, array tuples which describe an action |
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* to be taken, eg. write a property, set a variable, mixin a block. |
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* |
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* The children of a block are just all the blocks that are defined within. |
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* This is used to look up mixins when performing a mixin. |
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* |
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* Compiling the block involves pushing a fresh environment on the stack, |
| 190 |
* and iterating through the props, compiling each one. |
| 191 |
* |
| 192 |
* See lessc::compileProp() |
| 193 |
* |
| 194 |
*/ |
| 195 |
protected function compileBlock($block) { |
| 196 |
switch ($block->type) { |
| 197 |
case "root": |
| 198 |
$this->compileRoot($block); |
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break; |
| 200 |
case null: |
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$this->compileCSSBlock($block); |
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break; |
| 203 |
case "media": |
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$this->compileMedia($block); |
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break; |
| 206 |
case "directive": |
| 207 |
$name = "@" . $block->name; |
| 208 |
if (!empty($block->value)) { |
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$name .= " " . $this->compileValue($this->reduce($block->value)); |
| 210 |
} |
| 211 |
|
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$this->compileNestedBlock($block, array($name)); |
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break; |
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default: |
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$block->parser->throwError("unknown block type: $block->type\n", $block->count); |
| 216 |
} |
| 217 |
} |
| 218 |
|
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protected function compileCSSBlock($block) { |
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$env = $this->pushEnv(); |
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|
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$selectors = $this->compileSelectors($block->tags); |
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$env->selectors = $this->multiplySelectors($selectors); |
| 224 |
$out = $this->makeOutputBlock(null, $env->selectors); |
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|
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$this->scope->children[] = $out; |
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$this->compileProps($block, $out); |
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|
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$block->scope = $env; // mixins carry scope with them! |
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$this->popEnv(); |
| 231 |
} |
| 232 |
|
| 233 |
protected function compileMedia($media) { |
| 234 |
$env = $this->pushEnv($media); |
| 235 |
$parentScope = $this->mediaParent($this->scope); |
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|
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$query = $this->compileMediaQuery($this->multiplyMedia($env)); |
| 238 |
|
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$this->scope = $this->makeOutputBlock($media->type, array($query)); |
| 240 |
$parentScope->children[] = $this->scope; |
| 241 |
|
| 242 |
$this->compileProps($media, $this->scope); |
| 243 |
|
| 244 |
if (count($this->scope->lines) > 0) { |
| 245 |
$orphanSelelectors = $this->findClosestSelectors(); |
| 246 |
if (!is_null($orphanSelelectors)) { |
| 247 |
$orphan = $this->makeOutputBlock(null, $orphanSelelectors); |
| 248 |
$orphan->lines = $this->scope->lines; |
| 249 |
array_unshift($this->scope->children, $orphan); |
| 250 |
$this->scope->lines = array(); |
| 251 |
} |
| 252 |
} |
| 253 |
|
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$this->scope = $this->scope->parent; |
| 255 |
$this->popEnv(); |
| 256 |
} |
| 257 |
|
| 258 |
protected function mediaParent($scope) { |
| 259 |
while (!empty($scope->parent)) { |
| 260 |
if (!empty($scope->type) && $scope->type != "media") { |
| 261 |
break; |
| 262 |
} |
| 263 |
$scope = $scope->parent; |
| 264 |
} |
| 265 |
|
| 266 |
return $scope; |
| 267 |
} |
| 268 |
|
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protected function compileNestedBlock($block, $selectors) { |
| 270 |
$this->pushEnv($block); |
| 271 |
$this->scope = $this->makeOutputBlock($block->type, $selectors); |
| 272 |
$this->scope->parent->children[] = $this->scope; |
| 273 |
|
| 274 |
$this->compileProps($block, $this->scope); |
| 275 |
|
| 276 |
$this->scope = $this->scope->parent; |
| 277 |
$this->popEnv(); |
| 278 |
} |
| 279 |
|
| 280 |
protected function compileRoot($root) { |
| 281 |
$this->pushEnv(); |
| 282 |
$this->scope = $this->makeOutputBlock($root->type); |
| 283 |
$this->compileProps($root, $this->scope); |
| 284 |
$this->popEnv(); |
| 285 |
} |
| 286 |
|
| 287 |
protected function compileProps($block, $out) { |
| 288 |
foreach ($this->sortProps($block->props) as $prop) { |
| 289 |
$this->compileProp($prop, $block, $out); |
| 290 |
} |
| 291 |
$out->lines = $this->deduplicate($out->lines); |
| 292 |
} |
| 293 |
|
| 294 |
/** |
| 295 |
* Deduplicate lines in a block. Comments are not deduplicated. If a |
| 296 |
* duplicate rule is detected, the comments immediately preceding each |
| 297 |
* occurence are consolidated. |
| 298 |
*/ |
| 299 |
protected function deduplicate($lines) { |
| 300 |
$unique = array(); |
| 301 |
$comments = array(); |
| 302 |
|
| 303 |
foreach($lines as $line) { |
| 304 |
if (strpos($line, '/*') === 0) { |
| 305 |
$comments[] = $line; |
| 306 |
continue; |
| 307 |
} |
| 308 |
if (!in_array($line, $unique)) { |
| 309 |
$unique[] = $line; |
| 310 |
} |
| 311 |
array_splice($unique, array_search($line, $unique), 0, $comments); |
| 312 |
$comments = array(); |
| 313 |
} |
| 314 |
return array_merge($unique, $comments); |
| 315 |
} |
| 316 |
|
| 317 |
protected function sortProps($props, $split = false) { |
| 318 |
$vars = array(); |
| 319 |
$imports = array(); |
| 320 |
$other = array(); |
| 321 |
$stack = array(); |
| 322 |
|
| 323 |
foreach ($props as $prop) { |
| 324 |
switch ($prop[0]) { |
| 325 |
case "comment": |
| 326 |
$stack[] = $prop; |
| 327 |
break; |
| 328 |
case "assign": |
| 329 |
$stack[] = $prop; |
| 330 |
if (isset($prop[1][0]) && $prop[1][0] == $this->vPrefix) { |
| 331 |
$vars = array_merge($vars, $stack); |
| 332 |
} else { |
| 333 |
$other = array_merge($other, $stack); |
| 334 |
} |
| 335 |
$stack = array(); |
| 336 |
break; |
| 337 |
case "import": |
| 338 |
$id = self::$nextImportId++; |
| 339 |
$prop[] = $id; |
| 340 |
$stack[] = $prop; |
| 341 |
$imports = array_merge($imports, $stack); |
| 342 |
$other[] = array("import_mixin", $id); |
| 343 |
$stack = array(); |
| 344 |
break; |
| 345 |
default: |
| 346 |
$stack[] = $prop; |
| 347 |
$other = array_merge($other, $stack); |
| 348 |
$stack = array(); |
| 349 |
break; |
| 350 |
} |
| 351 |
} |
| 352 |
$other = array_merge($other, $stack); |
| 353 |
|
| 354 |
if ($split) { |
| 355 |
return array(array_merge($vars, $imports, $vars), $other); |
| 356 |
} else { |
| 357 |
return array_merge($vars, $imports, $vars, $other); |
| 358 |
} |
| 359 |
} |
| 360 |
|
| 361 |
protected function compileMediaQuery($queries) { |
| 362 |
$compiledQueries = array(); |
| 363 |
foreach ($queries as $query) { |
| 364 |
$parts = array(); |
| 365 |
foreach ($query as $q) { |
| 366 |
switch ($q[0]) { |
| 367 |
case "mediaType": |
| 368 |
$parts[] = implode(" ", array_slice($q, 1)); |
| 369 |
break; |
| 370 |
case "mediaExp": |
| 371 |
if (isset($q[2])) { |
| 372 |
$parts[] = "($q[1]: " . |
| 373 |
$this->compileValue($this->reduce($q[2])) . ")"; |
| 374 |
} else { |
| 375 |
$parts[] = "($q[1])"; |
| 376 |
} |
| 377 |
break; |
| 378 |
case "variable": |
| 379 |
$parts[] = $this->compileValue($this->reduce($q)); |
| 380 |
break; |
| 381 |
} |
| 382 |
} |
| 383 |
|
| 384 |
if (count($parts) > 0) { |
| 385 |
$compiledQueries[] = implode(" and ", $parts); |
| 386 |
} |
| 387 |
} |
| 388 |
|
| 389 |
$out = "@media"; |
| 390 |
if (!empty($parts)) { |
| 391 |
$out .= " " . |
| 392 |
implode($this->formatter->selectorSeparator, $compiledQueries); |
| 393 |
} |
| 394 |
return $out; |
| 395 |
} |
| 396 |
|
| 397 |
protected function multiplyMedia($env, $childQueries = null) { |
| 398 |
if (is_null($env) || |
| 399 |
!empty($env->block->type) && $env->block->type != "media") |
| 400 |
{ |
| 401 |
return $childQueries; |
| 402 |
} |
| 403 |
|
| 404 |
// plain old block, skip |
| 405 |
if (empty($env->block->type)) { |
| 406 |
return $this->multiplyMedia($env->parent, $childQueries); |
| 407 |
} |
| 408 |
|
| 409 |
$out = array(); |
| 410 |
$queries = $env->block->queries; |
| 411 |
if (is_null($childQueries)) { |
| 412 |
$out = $queries; |
| 413 |
} else { |
| 414 |
foreach ($queries as $parent) { |
| 415 |
foreach ($childQueries as $child) { |
| 416 |
$out[] = array_merge($parent, $child); |
| 417 |
} |
| 418 |
} |
| 419 |
} |
| 420 |
|
| 421 |
return $this->multiplyMedia($env->parent, $out); |
| 422 |
} |
| 423 |
|
| 424 |
protected function expandParentSelectors(&$tag, $replace) { |
| 425 |
$parts = explode("$&$", $tag); |
| 426 |
$count = 0; |
| 427 |
foreach ($parts as &$part) { |
| 428 |
$part = str_replace($this->parentSelector, $replace, $part, $c); |
| 429 |
$count += $c; |
| 430 |
} |
| 431 |
$tag = implode($this->parentSelector, $parts); |
| 432 |
return $count; |
| 433 |
} |
| 434 |
|
| 435 |
protected function findClosestSelectors() { |
| 436 |
$env = $this->env; |
| 437 |
$selectors = null; |
| 438 |
while ($env !== null) { |
| 439 |
if (isset($env->selectors)) { |
| 440 |
$selectors = $env->selectors; |
| 441 |
break; |
| 442 |
} |
| 443 |
$env = $env->parent; |
| 444 |
} |
| 445 |
|
| 446 |
return $selectors; |
| 447 |
} |
| 448 |
|
| 449 |
|
| 450 |
// multiply $selectors against the nearest selectors in env |
| 451 |
protected function multiplySelectors($selectors) { |
| 452 |
// find parent selectors |
| 453 |
|
| 454 |
$parentSelectors = $this->findClosestSelectors(); |
| 455 |
if (is_null($parentSelectors)) { |
| 456 |
// kill parent reference in top level selector |
| 457 |
foreach ($selectors as &$s) { |
| 458 |
$this->expandParentSelectors($s, ""); |
| 459 |
} |
| 460 |
|
| 461 |
return $selectors; |
| 462 |
} |
| 463 |
|
| 464 |
$out = array(); |
| 465 |
foreach ($parentSelectors as $parent) { |
| 466 |
foreach ($selectors as $child) { |
| 467 |
$count = $this->expandParentSelectors($child, $parent); |
| 468 |
|
| 469 |
// don't prepend the parent tag if & was used |
| 470 |
if ($count > 0) { |
| 471 |
$out[] = trim($child); |
| 472 |
} else { |
| 473 |
$out[] = trim($parent . ' ' . $child); |
| 474 |
} |
| 475 |
} |
| 476 |
} |
| 477 |
|
| 478 |
return $out; |
| 479 |
} |
| 480 |
|
| 481 |
// reduces selector expressions |
| 482 |
protected function compileSelectors($selectors) { |
| 483 |
$out = array(); |
| 484 |
|
| 485 |
foreach ($selectors as $s) { |
| 486 |
if (is_array($s)) { |
| 487 |
list(, $value) = $s; |
| 488 |
$out[] = trim($this->compileValue($this->reduce($value))); |
| 489 |
} else { |
| 490 |
$out[] = $s; |
| 491 |
} |
| 492 |
} |
| 493 |
|
| 494 |
return $out; |
| 495 |
} |
| 496 |
|
| 497 |
protected function eq($left, $right) { |
| 498 |
return $left == $right; |
| 499 |
} |
| 500 |
|
| 501 |
protected function patternMatch($block, $orderedArgs, $keywordArgs) { |
| 502 |
// match the guards if it has them |
| 503 |
// any one of the groups must have all its guards pass for a match |
| 504 |
if (!empty($block->guards)) { |
| 505 |
$groupPassed = false; |
| 506 |
foreach ($block->guards as $guardGroup) { |
| 507 |
foreach ($guardGroup as $guard) { |
| 508 |
$this->pushEnv(); |
| 509 |
$this->zipSetArgs($block->args, $orderedArgs, $keywordArgs); |
| 510 |
|
| 511 |
$negate = false; |
| 512 |
if ($guard[0] == "negate") { |
| 513 |
$guard = $guard[1]; |
| 514 |
$negate = true; |
| 515 |
} |
| 516 |
|
| 517 |
$passed = $this->reduce($guard) == self::$TRUE; |
| 518 |
if ($negate) $passed = !$passed; |
| 519 |
|
| 520 |
$this->popEnv(); |
| 521 |
|
| 522 |
if ($passed) { |
| 523 |
$groupPassed = true; |
| 524 |
} else { |
| 525 |
$groupPassed = false; |
| 526 |
break; |
| 527 |
} |
| 528 |
} |
| 529 |
|
| 530 |
if ($groupPassed) break; |
| 531 |
} |
| 532 |
|
| 533 |
if (!$groupPassed) { |
| 534 |
return false; |
| 535 |
} |
| 536 |
} |
| 537 |
|
| 538 |
if (empty($block->args)) { |
| 539 |
return $block->isVararg || empty($orderedArgs) && empty($keywordArgs); |
| 540 |
} |
| 541 |
|
| 542 |
$remainingArgs = $block->args; |
| 543 |
if ($keywordArgs) { |
| 544 |
$remainingArgs = array(); |
| 545 |
foreach ($block->args as $arg) { |
| 546 |
if ($arg[0] == "arg" && isset($keywordArgs[$arg[1]])) { |
| 547 |
continue; |
| 548 |
} |
| 549 |
|
| 550 |
$remainingArgs[] = $arg; |
| 551 |
} |
| 552 |
} |
| 553 |
|
| 554 |
$i = -1; // no args |
| 555 |
// try to match by arity or by argument literal |
| 556 |
foreach ($remainingArgs as $i => $arg) { |
| 557 |
switch ($arg[0]) { |
| 558 |
case "lit": |
| 559 |
if (empty($orderedArgs[$i]) || !$this->eq($arg[1], $orderedArgs[$i])) { |
| 560 |
return false; |
| 561 |
} |
| 562 |
break; |
| 563 |
case "arg": |
| 564 |
// no arg and no default value |
| 565 |
if (!isset($orderedArgs[$i]) && !isset($arg[2])) { |
| 566 |
return false; |
| 567 |
} |
| 568 |
break; |
| 569 |
case "rest": |
| 570 |
$i--; // rest can be empty |
| 571 |
break 2; |
| 572 |
} |
| 573 |
} |
| 574 |
|
| 575 |
if ($block->isVararg) { |
| 576 |
return true; // not having enough is handled above |
| 577 |
} else { |
| 578 |
$numMatched = $i + 1; |
| 579 |
// greater than because default values always match |
| 580 |
return $numMatched >= count($orderedArgs); |
| 581 |
} |
| 582 |
} |
| 583 |
|
| 584 |
protected function patternMatchAll($blocks, $orderedArgs, $keywordArgs, $skip=array()) { |
| 585 |
$matches = null; |
| 586 |
foreach ($blocks as $block) { |
| 587 |
// skip seen blocks that don't have arguments |
| 588 |
if (isset($skip[$block->id]) && !isset($block->args)) { |
| 589 |
continue; |
| 590 |
} |
| 591 |
|
| 592 |
if ($this->patternMatch($block, $orderedArgs, $keywordArgs)) { |
| 593 |
$matches[] = $block; |
| 594 |
} |
| 595 |
} |
| 596 |
|
| 597 |
return $matches; |
| 598 |
} |
| 599 |
|
| 600 |
// attempt to find blocks matched by path and args |
| 601 |
protected function findBlocks($searchIn, $path, $orderedArgs, $keywordArgs, $seen=array()) { |
| 602 |
if ($searchIn == null) return null; |
| 603 |
if (isset($seen[$searchIn->id])) return null; |
| 604 |
$seen[$searchIn->id] = true; |
| 605 |
|
| 606 |
$name = $path[0]; |
| 607 |
|
| 608 |
if (isset($searchIn->children[$name])) { |
| 609 |
$blocks = $searchIn->children[$name]; |
| 610 |
if (count($path) == 1) { |
| 611 |
$matches = $this->patternMatchAll($blocks, $orderedArgs, $keywordArgs, $seen); |
| 612 |
if (!empty($matches)) { |
| 613 |
// This will return all blocks that match in the closest |
| 614 |
// scope that has any matching block, like lessjs |
| 615 |
return $matches; |
| 616 |
} |
| 617 |
} else { |
| 618 |
$matches = array(); |
| 619 |
foreach ($blocks as $subBlock) { |
| 620 |
$subMatches = $this->findBlocks($subBlock, |
| 621 |
array_slice($path, 1), $orderedArgs, $keywordArgs, $seen); |
| 622 |
|
| 623 |
if (!is_null($subMatches)) { |
| 624 |
foreach ($subMatches as $sm) { |
| 625 |
$matches[] = $sm; |
| 626 |
} |
| 627 |
} |
| 628 |
} |
| 629 |
|
| 630 |
return count($matches) > 0 ? $matches : null; |
| 631 |
} |
| 632 |
} |
| 633 |
if ($searchIn->parent === $searchIn) return null; |
| 634 |
return $this->findBlocks($searchIn->parent, $path, $orderedArgs, $keywordArgs, $seen); |
| 635 |
} |
| 636 |
|
| 637 |
// sets all argument names in $args to either the default value |
| 638 |
// or the one passed in through $values |
| 639 |
protected function zipSetArgs($args, $orderedValues, $keywordValues) { |
| 640 |
$assignedValues = array(); |
| 641 |
|
| 642 |
$i = 0; |
| 643 |
foreach ($args as $a) { |
| 644 |
if ($a[0] == "arg") { |
| 645 |
if (isset($keywordValues[$a[1]])) { |
| 646 |
// has keyword arg |
| 647 |
$value = $keywordValues[$a[1]]; |
| 648 |
} elseif (isset($orderedValues[$i])) { |
| 649 |
// has ordered arg |
| 650 |
$value = $orderedValues[$i]; |
| 651 |
$i++; |
| 652 |
} elseif (isset($a[2])) { |
| 653 |
// has default value |
| 654 |
$value = $a[2]; |
| 655 |
} else { |
| 656 |
$this->throwError("Failed to assign arg " . $a[1]); |
| 657 |
$value = null; // :( |
| 658 |
} |
| 659 |
|
| 660 |
$value = $this->reduce($value); |
| 661 |
$this->set($a[1], $value); |
| 662 |
$assignedValues[] = $value; |
| 663 |
} else { |
| 664 |
// a lit |
| 665 |
$i++; |
| 666 |
} |
| 667 |
} |
| 668 |
|
| 669 |
// check for a rest |
| 670 |
$last = end($args); |
| 671 |
if ($last !== false && $last[0] === "rest") { |
| 672 |
$rest = array_slice($orderedValues, count($args) - 1); |
| 673 |
$this->set($last[1], $this->reduce(array("list", " ", $rest))); |
| 674 |
} |
| 675 |
|
| 676 |
// wow is this the only true use of PHP's + operator for arrays? |
| 677 |
$this->env->arguments = $assignedValues + $orderedValues; |
| 678 |
} |
| 679 |
|
| 680 |
// compile a prop and update $lines or $blocks appropriately |
| 681 |
protected function compileProp($prop, $block, $out) { |
| 682 |
// set error position context |
| 683 |
$this->sourceLoc = isset($prop[-1]) ? $prop[-1] : -1; |
| 684 |
|
| 685 |
switch ($prop[0]) { |
| 686 |
case 'assign': |
| 687 |
list(, $name, $value) = $prop; |
| 688 |
if ($name[0] == $this->vPrefix) { |
| 689 |
$this->set($name, $value); |
| 690 |
} else { |
| 691 |
$out->lines[] = $this->formatter->property($name, |
| 692 |
$this->compileValue($this->reduce($value))); |
| 693 |
} |
| 694 |
break; |
| 695 |
case 'block': |
| 696 |
list(, $child) = $prop; |
| 697 |
$this->compileBlock($child); |
| 698 |
break; |
| 699 |
case 'ruleset': |
| 700 |
case 'mixin': |
| 701 |
list(, $path, $args, $suffix) = $prop; |
| 702 |
|
| 703 |
$orderedArgs = array(); |
| 704 |
$keywordArgs = array(); |
| 705 |
foreach ((array)$args as $arg) { |
| 706 |
$argval = null; |
| 707 |
switch ($arg[0]) { |
| 708 |
case "arg": |
| 709 |
if (!isset($arg[2])) { |
| 710 |
$orderedArgs[] = $this->reduce(array("variable", $arg[1])); |
| 711 |
} else { |
| 712 |
$keywordArgs[$arg[1]] = $this->reduce($arg[2]); |
| 713 |
} |
| 714 |
break; |
| 715 |
|
| 716 |
case "lit": |
| 717 |
$orderedArgs[] = $this->reduce($arg[1]); |
| 718 |
break; |
| 719 |
default: |
| 720 |
$this->throwError("Unknown arg type: " . $arg[0]); |
| 721 |
} |
| 722 |
} |
| 723 |
|
| 724 |
$mixins = $this->findBlocks($block, $path, $orderedArgs, $keywordArgs); |
| 725 |
|
| 726 |
if ($mixins === null) { |
| 727 |
$block->parser->throwError("{$prop[1][0]} is undefined", $block->count); |
| 728 |
} |
| 729 |
|
| 730 |
if(strpos($prop[1][0], "$") === 0) { |
| 731 |
//Use Ruleset Logic - Only last element |
| 732 |
$mixins = array(array_pop($mixins)); |
| 733 |
} |
| 734 |
|
| 735 |
foreach ($mixins as $mixin) { |
| 736 |
if ($mixin === $block && !$orderedArgs) { |
| 737 |
continue; |
| 738 |
} |
| 739 |
|
| 740 |
$haveScope = false; |
| 741 |
if (isset($mixin->parent->scope)) { |
| 742 |
$haveScope = true; |
| 743 |
$mixinParentEnv = $this->pushEnv(); |
| 744 |
$mixinParentEnv->storeParent = $mixin->parent->scope; |
| 745 |
} |
| 746 |
|
| 747 |
$haveArgs = false; |
| 748 |
if (isset($mixin->args)) { |
| 749 |
$haveArgs = true; |
| 750 |
$this->pushEnv(); |
| 751 |
$this->zipSetArgs($mixin->args, $orderedArgs, $keywordArgs); |
| 752 |
} |
| 753 |
|
| 754 |
$oldParent = $mixin->parent; |
| 755 |
if ($mixin != $block) $mixin->parent = $block; |
| 756 |
|
| 757 |
foreach ($this->sortProps($mixin->props) as $subProp) { |
| 758 |
if ($suffix !== null && |
| 759 |
$subProp[0] == "assign" && |
| 760 |
is_string($subProp[1]) && |
| 761 |
$subProp[1][0] != $this->vPrefix) |
| 762 |
{ |
| 763 |
$subProp[2] = array( |
| 764 |
'list', ' ', |
| 765 |
array($subProp[2], array('keyword', $suffix)) |
| 766 |
); |
| 767 |
} |
| 768 |
|
| 769 |
$this->compileProp($subProp, $mixin, $out); |
| 770 |
} |
| 771 |
|
| 772 |
$mixin->parent = $oldParent; |
| 773 |
|
| 774 |
if ($haveArgs) $this->popEnv(); |
| 775 |
if ($haveScope) $this->popEnv(); |
| 776 |
} |
| 777 |
|
| 778 |
break; |
| 779 |
case 'raw': |
| 780 |
$out->lines[] = $prop[1]; |
| 781 |
break; |
| 782 |
case "directive": |
| 783 |
list(, $name, $value) = $prop; |
| 784 |
$out->lines[] = "@$name " . $this->compileValue($this->reduce($value)).';'; |
| 785 |
break; |
| 786 |
case "comment": |
| 787 |
$out->lines[] = $prop[1]; |
| 788 |
break; |
| 789 |
case "import"; |
| 790 |
list(, $importPath, $importId) = $prop; |
| 791 |
$importPath = $this->reduce($importPath); |
| 792 |
|
| 793 |
if (!isset($this->env->imports)) { |
| 794 |
$this->env->imports = array(); |
| 795 |
} |
| 796 |
|
| 797 |
$result = $this->tryImport($importPath, $block, $out); |
| 798 |
|
| 799 |
$this->env->imports[$importId] = $result === false ? |
| 800 |
array(false, "@import " . $this->compileValue($importPath).";") : |
| 801 |
$result; |
| 802 |
|
| 803 |
break; |
| 804 |
case "import_mixin": |
| 805 |
list(,$importId) = $prop; |
| 806 |
$import = $this->env->imports[$importId]; |
| 807 |
if ($import[0] === false) { |
| 808 |
if (isset($import[1])) { |
| 809 |
$out->lines[] = $import[1]; |
| 810 |
} |
| 811 |
} else { |
| 812 |
list(, $bottom, $parser, $importDir) = $import; |
| 813 |
$this->compileImportedProps($bottom, $block, $out, $parser, $importDir); |
| 814 |
} |
| 815 |
|
| 816 |
break; |
| 817 |
default: |
| 818 |
$block->parser->throwError("unknown op: {$prop[0]}\n", $block->count); |
| 819 |
} |
| 820 |
} |
| 821 |
|
| 822 |
|
| 823 |
/** |
| 824 |
* Compiles a primitive value into a CSS property value. |
| 825 |
* |
| 826 |
* Values in lessphp are typed by being wrapped in arrays, their format is |
| 827 |
* typically: |
| 828 |
* |
| 829 |
* array(type, contents [, additional_contents]*) |
| 830 |
* |
| 831 |
* The input is expected to be reduced. This function will not work on |
| 832 |
* things like expressions and variables. |
| 833 |
*/ |
| 834 |
public function compileValue($value) { |
| 835 |
switch ($value[0]) { |
| 836 |
case 'list': |
| 837 |
// [1] - delimiter |
| 838 |
// [2] - array of values |
| 839 |
return implode($value[1], array_map(array($this, 'compileValue'), $value[2])); |
| 840 |
case 'raw_color': |
| 841 |
if (!empty($this->formatter->compressColors)) { |
| 842 |
return $this->compileValue($this->coerceColor($value)); |
| 843 |
} |
| 844 |
return $value[1]; |
| 845 |
case 'keyword': |
| 846 |
// [1] - the keyword |
| 847 |
return $value[1]; |
| 848 |
case 'number': |
| 849 |
list(, $num, $unit) = $value; |
| 850 |
// [1] - the number |
| 851 |
// [2] - the unit |
| 852 |
if ($this->numberPrecision !== null) { |
| 853 |
$num = round($num, $this->numberPrecision); |
| 854 |
} |
| 855 |
return $num . $unit; |
| 856 |
case 'string': |
| 857 |
// [1] - contents of string (includes quotes) |
| 858 |
list(, $delim, $content) = $value; |
| 859 |
foreach ($content as &$part) { |
| 860 |
if (is_array($part)) { |
| 861 |
$part = $this->compileValue($part); |
| 862 |
} |
| 863 |
} |
| 864 |
return $delim . implode($content) . $delim; |
| 865 |
case 'color': |
| 866 |
// [1] - red component (either number or a %) |
| 867 |
// [2] - green component |
| 868 |
// [3] - blue component |
| 869 |
// [4] - optional alpha component |
| 870 |
list(, $r, $g, $b) = $value; |
| 871 |
$r = round($r); |
| 872 |
$g = round($g); |
| 873 |
$b = round($b); |
| 874 |
|
| 875 |
if (count($value) == 5 && $value[4] != 1) { // rgba |
| 876 |
return 'rgba('.$r.','.$g.','.$b.','.$value[4].')'; |
| 877 |
} |
| 878 |
|
| 879 |
$h = sprintf("#%02x%02x%02x", $r, $g, $b); |
| 880 |
|
| 881 |
if (!empty($this->formatter->compressColors)) { |
| 882 |
// Converting hex color to short notation (e.g. #003399 to #039) |
| 883 |
if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) { |
| 884 |
$h = '#' . $h[1] . $h[3] . $h[5]; |
| 885 |
} |
| 886 |
} |
| 887 |
|
| 888 |
return $h; |
| 889 |
|
| 890 |
case 'function': |
| 891 |
list(, $name, $args) = $value; |
| 892 |
return $name.'('.$this->compileValue($args).')'; |
| 893 |
default: // assumed to be unit |
| 894 |
$this->throwError("unknown value type: $value[0]"); |
| 895 |
} |
| 896 |
} |
| 897 |
|
| 898 |
protected function lib_pow($args) { |
| 899 |
list($base, $exp) = $this->assertArgs($args, 2, "pow"); |
| 900 |
return array( "number", pow($this->assertNumber($base), $this->assertNumber($exp)), $args[2][0][2] ); |
| 901 |
} |
| 902 |
|
| 903 |
protected function lib_pi() { |
| 904 |
return pi(); |
| 905 |
} |
| 906 |
|
| 907 |
protected function lib_mod($args) { |
| 908 |
list($a, $b) = $this->assertArgs($args, 2, "mod"); |
| 909 |
return array( "number", $this->assertNumber($a) % $this->assertNumber($b), $args[2][0][2] ); |
| 910 |
} |
| 911 |
|
| 912 |
protected function lib_convert($args) { |
| 913 |
list($value, $to) = $this->assertArgs($args, 2, "convert"); |
| 914 |
|
| 915 |
// If it's a keyword, grab the string version instead |
| 916 |
if( is_array( $to ) && $to[0] == "keyword" ) |
| 917 |
$to = $to[1]; |
| 918 |
|
| 919 |
return $this->convert( $value, $to ); |
| 920 |
} |
| 921 |
|
| 922 |
protected function lib_abs($num) { |
| 923 |
return array( "number", abs($this->assertNumber($num)), $num[2] ); |
| 924 |
} |
| 925 |
|
| 926 |
protected function lib_min($args) { |
| 927 |
$values = $this->assertMinArgs($args, 1, "min"); |
| 928 |
|
| 929 |
$first_format = $values[0][2]; |
| 930 |
|
| 931 |
$min_index = 0; |
| 932 |
$min_value = $values[0][1]; |
| 933 |
|
| 934 |
for( $a = 0; $a < sizeof( $values ); $a++ ) |
| 935 |
{ |
| 936 |
$converted = $this->convert( $values[$a], $first_format ); |
| 937 |
|
| 938 |
if( $converted[1] < $min_value ) |
| 939 |
{ |
| 940 |
$min_index = $a; |
| 941 |
$min_value = $values[$a][1]; |
| 942 |
} |
| 943 |
} |
| 944 |
|
| 945 |
return $values[ $min_index ]; |
| 946 |
} |
| 947 |
|
| 948 |
protected function lib_max($args) { |
| 949 |
$values = $this->assertMinArgs($args, 1, "max"); |
| 950 |
|
| 951 |
$first_format = $values[0][2]; |
| 952 |
|
| 953 |
$max_index = 0; |
| 954 |
$max_value = $values[0][1]; |
| 955 |
|
| 956 |
for( $a = 0; $a < sizeof( $values ); $a++ ) |
| 957 |
{ |
| 958 |
$converted = $this->convert( $values[$a], $first_format ); |
| 959 |
|
| 960 |
if( $converted[1] > $max_value ) |
| 961 |
{ |
| 962 |
$max_index = $a; |
| 963 |
$max_value = $values[$a][1]; |
| 964 |
} |
| 965 |
} |
| 966 |
|
| 967 |
return $values[ $max_index ]; |
| 968 |
} |
| 969 |
|
| 970 |
protected function lib_tan($num) { |
| 971 |
return tan($this->assertNumber($num)); |
| 972 |
} |
| 973 |
|
| 974 |
protected function lib_sin($num) { |
| 975 |
return sin($this->assertNumber($num)); |
| 976 |
} |
| 977 |
|
| 978 |
protected function lib_cos($num) { |
| 979 |
return cos($this->assertNumber($num)); |
| 980 |
} |
| 981 |
|
| 982 |
protected function lib_atan($num) { |
| 983 |
$num = atan($this->assertNumber($num)); |
| 984 |
return array("number", $num, "rad"); |
| 985 |
} |
| 986 |
|
| 987 |
protected function lib_asin($num) { |
| 988 |
$num = asin($this->assertNumber($num)); |
| 989 |
return array("number", $num, "rad"); |
| 990 |
} |
| 991 |
|
| 992 |
protected function lib_acos($num) { |
| 993 |
$num = acos($this->assertNumber($num)); |
| 994 |
return array("number", $num, "rad"); |
| 995 |
} |
| 996 |
|
| 997 |
protected function lib_sqrt($num) { |
| 998 |
return sqrt($this->assertNumber($num)); |
| 999 |
} |
| 1000 |
|
| 1001 |
protected function lib_extract($value) { |
| 1002 |
list($list, $idx) = $this->assertArgs($value, 2, "extract"); |
| 1003 |
$idx = $this->assertNumber($idx); |
| 1004 |
// 1 indexed |
| 1005 |
if ($list[0] == "list" && isset($list[2][$idx - 1])) { |
| 1006 |
return $list[2][$idx - 1]; |
| 1007 |
} |
| 1008 |
} |
| 1009 |
|
| 1010 |
protected function lib_isnumber($value) { |
| 1011 |
return $this->toBool($value[0] == "number"); |
| 1012 |
} |
| 1013 |
|
| 1014 |
protected function lib_isstring($value) { |
| 1015 |
return $this->toBool($value[0] == "string"); |
| 1016 |
} |
| 1017 |
|
| 1018 |
protected function lib_iscolor($value) { |
| 1019 |
return $this->toBool($this->coerceColor($value)); |
| 1020 |
} |
| 1021 |
|
| 1022 |
protected function lib_iskeyword($value) { |
| 1023 |
return $this->toBool($value[0] == "keyword"); |
| 1024 |
} |
| 1025 |
|
| 1026 |
protected function lib_ispixel($value) { |
| 1027 |
return $this->toBool($value[0] == "number" && $value[2] == "px"); |
| 1028 |
} |
| 1029 |
|
| 1030 |
protected function lib_ispercentage($value) { |
| 1031 |
return $this->toBool($value[0] == "number" && $value[2] == "%"); |
| 1032 |
} |
| 1033 |
|
| 1034 |
protected function lib_isem($value) { |
| 1035 |
return $this->toBool($value[0] == "number" && $value[2] == "em"); |
| 1036 |
} |
| 1037 |
|
| 1038 |
protected function lib_isrem($value) { |
| 1039 |
return $this->toBool($value[0] == "number" && $value[2] == "rem"); |
| 1040 |
} |
| 1041 |
|
| 1042 |
protected function lib_rgbahex($color) { |
| 1043 |
$color = $this->coerceColor($color); |
| 1044 |
if (is_null($color)) |
| 1045 |
$this->throwError("color expected for rgbahex"); |
| 1046 |
|
| 1047 |
return sprintf("#%02x%02x%02x%02x", |
| 1048 |
isset($color[4]) ? $color[4]*255 : 255, |
| 1049 |
$color[1],$color[2], $color[3]); |
| 1050 |
} |
| 1051 |
|
| 1052 |
protected function lib_argb($color){ |
| 1053 |
return $this->lib_rgbahex($color); |
| 1054 |
} |
| 1055 |
|
| 1056 |
/** |
| 1057 |
* Given an url, decide whether to output a regular link or the base64-encoded contents of the file |
| 1058 |
* |
| 1059 |
* @param array $value either an argument list (two strings) or a single string |
| 1060 |
* @return string formatted url(), either as a link or base64-encoded |
| 1061 |
*/ |
| 1062 |
protected function lib_data_uri($value) { |
| 1063 |
$mime = ($value[0] === 'list') ? $value[2][0][2] : null; |
| 1064 |
$url = ($value[0] === 'list') ? $value[2][1][2][0] : $value[2][0]; |
| 1065 |
|
| 1066 |
$fullpath = $this->findImport($url); |
| 1067 |
|
| 1068 |
if($fullpath && ($fsize = filesize($fullpath)) !== false) { |
| 1069 |
// IE8 can't handle data uris larger than 32KB |
| 1070 |
if($fsize/1024 < 32) { |
| 1071 |
if(is_null($mime)) { |
| 1072 |
if(class_exists('finfo')) { // php 5.3+ |
| 1073 |
$finfo = new finfo(FILEINFO_MIME); |
| 1074 |
$mime = explode('; ', $finfo->file($fullpath)); |
| 1075 |
$mime = $mime[0]; |
| 1076 |
} elseif(function_exists('mime_content_type')) { // PHP 5.2 |
| 1077 |
$mime = mime_content_type($fullpath); |
| 1078 |
} |
| 1079 |
} |
| 1080 |
|
| 1081 |
if(!is_null($mime)) // fallback if the mime type is still unknown |
| 1082 |
$url = sprintf('data:%s;base64,%s', $mime, base64_encode(file_get_contents($fullpath))); |
| 1083 |
} |
| 1084 |
} |
| 1085 |
|
| 1086 |
return 'url("'.$url.'")'; |
| 1087 |
} |
| 1088 |
|
| 1089 |
// utility func to unquote a string |
| 1090 |
protected function lib_e($arg) { |
| 1091 |
switch ($arg[0]) { |
| 1092 |
case "list": |
| 1093 |
$items = $arg[2]; |
| 1094 |
if (isset($items[0])) { |
| 1095 |
return $this->lib_e($items[0]); |
| 1096 |
} |
| 1097 |
$this->throwError("unrecognised input"); |
| 1098 |
case "string": |
| 1099 |
$arg[1] = ""; |
| 1100 |
return $arg; |
| 1101 |
case "keyword": |
| 1102 |
return $arg; |
| 1103 |
default: |
| 1104 |
return array("keyword", $this->compileValue($arg)); |
| 1105 |
} |
| 1106 |
} |
| 1107 |
|
| 1108 |
protected function lib__sprintf($args) { |
| 1109 |
if ($args[0] != "list") return $args; |
| 1110 |
$values = $args[2]; |
| 1111 |
$string = array_shift($values); |
| 1112 |
$template = $this->compileValue($this->lib_e($string)); |
| 1113 |
|
| 1114 |
$i = 0; |
| 1115 |
if (preg_match_all('/%[dsa]/', $template, $m)) { |
| 1116 |
foreach ($m[0] as $match) { |
| 1117 |
$val = isset($values[$i]) ? |
| 1118 |
$this->reduce($values[$i]) : array('keyword', ''); |
| 1119 |
|
| 1120 |
// lessjs compat, renders fully expanded color, not raw color |
| 1121 |
if ($color = $this->coerceColor($val)) { |
| 1122 |
$val = $color; |
| 1123 |
} |
| 1124 |
|
| 1125 |
$i++; |
| 1126 |
$rep = $this->compileValue($this->lib_e($val)); |
| 1127 |
$template = preg_replace('/'.self::preg_quote($match).'/', |
| 1128 |
$rep, $template, 1); |
| 1129 |
} |
| 1130 |
} |
| 1131 |
|
| 1132 |
$d = $string[0] == "string" ? $string[1] : '"'; |
| 1133 |
return array("string", $d, array($template)); |
| 1134 |
} |
| 1135 |
|
| 1136 |
protected function lib_floor($arg) { |
| 1137 |
$value = $this->assertNumber($arg); |
| 1138 |
return array("number", floor($value), $arg[2]); |
| 1139 |
} |
| 1140 |
|
| 1141 |
protected function lib_ceil($arg) { |
| 1142 |
$value = $this->assertNumber($arg); |
| 1143 |
return array("number", ceil($value), $arg[2]); |
| 1144 |
} |
| 1145 |
|
| 1146 |
protected function lib_round($arg) { |
| 1147 |
if($arg[0] != "list") { |
| 1148 |
$value = $this->assertNumber($arg); |
| 1149 |
return array("number", round($value), $arg[2]); |
| 1150 |
} else { |
| 1151 |
$value = $this->assertNumber($arg[2][0]); |
| 1152 |
$precision = $this->assertNumber($arg[2][1]); |
| 1153 |
return array("number", round($value, $precision), $arg[2][0][2]); |
| 1154 |
} |
| 1155 |
} |
| 1156 |
|
| 1157 |
protected function lib_unit($arg) { |
| 1158 |
if ($arg[0] == "list") { |
| 1159 |
list($number, $newUnit) = $arg[2]; |
| 1160 |
return array("number", $this->assertNumber($number), |
| 1161 |
$this->compileValue($this->lib_e($newUnit))); |
| 1162 |
} else { |
| 1163 |
return array("number", $this->assertNumber($arg), ""); |
| 1164 |
} |
| 1165 |
} |
| 1166 |
|
| 1167 |
/** |
| 1168 |
* Helper function to get arguments for color manipulation functions. |
| 1169 |
* takes a list that contains a color like thing and a percentage |
| 1170 |
*/ |
| 1171 |
public function colorArgs($args) { |
| 1172 |
if ($args[0] != 'list' || count($args[2]) < 2) { |
| 1173 |
return array(array('color', 0, 0, 0), 0); |
| 1174 |
} |
| 1175 |
list($color, $delta) = $args[2]; |
| 1176 |
$color = $this->assertColor($color); |
| 1177 |
$delta = floatval($delta[1]); |
| 1178 |
|
| 1179 |
return array($color, $delta); |
| 1180 |
} |
| 1181 |
|
| 1182 |
protected function lib_darken($args) { |
| 1183 |
list($color, $delta) = $this->colorArgs($args); |
| 1184 |
|
| 1185 |
$hsl = $this->toHSL($color); |
| 1186 |
$hsl[3] = $this->clamp($hsl[3] - $delta, 100); |
| 1187 |
return $this->toRGB($hsl); |
| 1188 |
} |
| 1189 |
|
| 1190 |
protected function lib_lighten($args) { |
| 1191 |
list($color, $delta) = $this->colorArgs($args); |
| 1192 |
|
| 1193 |
$hsl = $this->toHSL($color); |
| 1194 |
$hsl[3] = $this->clamp($hsl[3] + $delta, 100); |
| 1195 |
return $this->toRGB($hsl); |
| 1196 |
} |
| 1197 |
|
| 1198 |
protected function lib_saturate($args) { |
| 1199 |
list($color, $delta) = $this->colorArgs($args); |
| 1200 |
|
| 1201 |
$hsl = $this->toHSL($color); |
| 1202 |
$hsl[2] = $this->clamp($hsl[2] + $delta, 100); |
| 1203 |
return $this->toRGB($hsl); |
| 1204 |
} |
| 1205 |
|
| 1206 |
protected function lib_desaturate($args) { |
| 1207 |
list($color, $delta) = $this->colorArgs($args); |
| 1208 |
|
| 1209 |
$hsl = $this->toHSL($color); |
| 1210 |
$hsl[2] = $this->clamp($hsl[2] - $delta, 100); |
| 1211 |
return $this->toRGB($hsl); |
| 1212 |
} |
| 1213 |
|
| 1214 |
protected function lib_spin($args) { |
| 1215 |
list($color, $delta) = $this->colorArgs($args); |
| 1216 |
|
| 1217 |
$hsl = $this->toHSL($color); |
| 1218 |
|
| 1219 |
$hsl[1] = $hsl[1] + $delta % 360; |
| 1220 |
if ($hsl[1] < 0) $hsl[1] += 360; |
| 1221 |
|
| 1222 |
return $this->toRGB($hsl); |
| 1223 |
} |
| 1224 |
|
| 1225 |
protected function lib_fadeout($args) { |
| 1226 |
list($color, $delta) = $this->colorArgs($args); |
| 1227 |
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) - $delta/100); |
| 1228 |
return $color; |
| 1229 |
} |
| 1230 |
|
| 1231 |
protected function lib_fadein($args) { |
| 1232 |
list($color, $delta) = $this->colorArgs($args); |
| 1233 |
$color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) + $delta/100); |
| 1234 |
return $color; |
| 1235 |
} |
| 1236 |
|
| 1237 |
protected function lib_hue($color) { |
| 1238 |
$hsl = $this->toHSL($this->assertColor($color)); |
| 1239 |
return round($hsl[1]); |
| 1240 |
} |
| 1241 |
|
| 1242 |
protected function lib_saturation($color) { |
| 1243 |
$hsl = $this->toHSL($this->assertColor($color)); |
| 1244 |
return round($hsl[2]); |
| 1245 |
} |
| 1246 |
|
| 1247 |
protected function lib_lightness($color) { |
| 1248 |
$hsl = $this->toHSL($this->assertColor($color)); |
| 1249 |
return round($hsl[3]); |
| 1250 |
} |
| 1251 |
|
| 1252 |
// get the alpha of a color |
| 1253 |
// defaults to 1 for non-colors or colors without an alpha |
| 1254 |
protected function lib_alpha($value) { |
| 1255 |
if (!is_null($color = $this->coerceColor($value))) { |
| 1256 |
return isset($color[4]) ? $color[4] : 1; |
| 1257 |
} |
| 1258 |
} |
| 1259 |
|
| 1260 |
// set the alpha of the color |
| 1261 |
protected function lib_fade($args) { |
| 1262 |
list($color, $alpha) = $this->colorArgs($args); |
| 1263 |
$color[4] = $this->clamp($alpha / 100.0); |
| 1264 |
return $color; |
| 1265 |
} |
| 1266 |
|
| 1267 |
protected function lib_percentage($arg) { |
| 1268 |
$num = $this->assertNumber($arg); |
| 1269 |
return array("number", $num*100, "%"); |
| 1270 |
} |
| 1271 |
|
| 1272 |
// mixes two colors by weight |
| 1273 |
// mix(@color1, @color2, [@weight: 50%]); |
| 1274 |
// http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#mix-instance_method |
| 1275 |
protected function lib_mix($args) { |
| 1276 |
if ($args[0] != "list" || count($args[2]) < 2) |
| 1277 |
$this->throwError("mix expects (color1, color2, weight)"); |
| 1278 |
|
| 1279 |
list($first, $second) = $args[2]; |
| 1280 |
$first = $this->assertColor($first); |
| 1281 |
$second = $this->assertColor($second); |
| 1282 |
|
| 1283 |
$first_a = $this->lib_alpha($first); |
| 1284 |
$second_a = $this->lib_alpha($second); |
| 1285 |
|
| 1286 |
if (isset($args[2][2])) { |
| 1287 |
$weight = $args[2][2][1] / 100.0; |
| 1288 |
} else { |
| 1289 |
$weight = 0.5; |
| 1290 |
} |
| 1291 |
|
| 1292 |
$w = $weight * 2 - 1; |
| 1293 |
$a = $first_a - $second_a; |
| 1294 |
|
| 1295 |
$w1 = (($w * $a == -1 ? $w : ($w + $a)/(1 + $w * $a)) + 1) / 2.0; |
| 1296 |
$w2 = 1.0 - $w1; |
| 1297 |
|
| 1298 |
$new = array('color', |
| 1299 |
$w1 * $first[1] + $w2 * $second[1], |
| 1300 |
$w1 * $first[2] + $w2 * $second[2], |
| 1301 |
$w1 * $first[3] + $w2 * $second[3], |
| 1302 |
); |
| 1303 |
|
| 1304 |
if ($first_a != 1.0 || $second_a != 1.0) { |
| 1305 |
$new[] = $first_a * $weight + $second_a * ($weight - 1); |
| 1306 |
} |
| 1307 |
|
| 1308 |
return $this->fixColor($new); |
| 1309 |
} |
| 1310 |
|
| 1311 |
protected function lib_contrast($args) { |
| 1312 |
$darkColor = array('color', 0, 0, 0); |
| 1313 |
$lightColor = array('color', 255, 255, 255); |
| 1314 |
$threshold = 0.43; |
| 1315 |
|
| 1316 |
if ( $args[0] == 'list' ) { |
| 1317 |
$inputColor = ( isset($args[2][0]) ) ? $this->assertColor($args[2][0]) : $lightColor; |
| 1318 |
$darkColor = ( isset($args[2][1]) ) ? $this->assertColor($args[2][1]) : $darkColor; |
| 1319 |
$lightColor = ( isset($args[2][2]) ) ? $this->assertColor($args[2][2]) : $lightColor; |
| 1320 |
if( isset($args[2][3]) ) { |
| 1321 |
if( isset($args[2][3][2]) && $args[2][3][2] == '%' ) { |
| 1322 |
$args[2][3][1] /= 100; |
| 1323 |
unset($args[2][3][2]); |
| 1324 |
} |
| 1325 |
$threshold = $this->assertNumber($args[2][3]); |
| 1326 |
} |
| 1327 |
} |
| 1328 |
else { |
| 1329 |
$inputColor = $this->assertColor($args); |
| 1330 |
} |
| 1331 |
|
| 1332 |
$inputColor = $this->coerceColor($inputColor); |
| 1333 |
$darkColor = $this->coerceColor($darkColor); |
| 1334 |
$lightColor = $this->coerceColor($lightColor); |
| 1335 |
|
| 1336 |
//Figure out which is actually light and dark! |
| 1337 |
if ( $this->lib_luma($darkColor) > $this->lib_luma($lightColor) ) { |
| 1338 |
$t = $lightColor; |
| 1339 |
$lightColor = $darkColor; |
| 1340 |
$darkColor = $t; |
| 1341 |
} |
| 1342 |
|
| 1343 |
$inputColor_alpha = $this->lib_alpha($inputColor); |
| 1344 |
if ( ( $this->lib_luma($inputColor) * $inputColor_alpha) < $threshold) { |
| 1345 |
return $lightColor; |
| 1346 |
} |
| 1347 |
return $darkColor; |
| 1348 |
} |
| 1349 |
|
| 1350 |
protected function lib_luma($color) { |
| 1351 |
$color = $this->coerceColor($color); |
| 1352 |
return (0.2126 * $color[1] / 255) + (0.7152 * $color[2] / 255) + (0.0722 * $color[3] / 255); |
| 1353 |
} |
| 1354 |
|
| 1355 |
|
| 1356 |
public function assertColor($value, $error = "expected color value") { |
| 1357 |
$color = $this->coerceColor($value); |
| 1358 |
if (is_null($color)) $this->throwError($error); |
| 1359 |
return $color; |
| 1360 |
} |
| 1361 |
|
| 1362 |
public function assertNumber($value, $error = "expecting number") { |
| 1363 |
if ($value[0] == "number") return $value[1]; |
| 1364 |
$this->throwError($error); |
| 1365 |
} |
| 1366 |
|
| 1367 |
public function assertArgs($value, $expectedArgs, $name="") { |
| 1368 |
if ($expectedArgs == 1) { |
| 1369 |
return $value; |
| 1370 |
} else { |
| 1371 |
if ($value[0] !== "list" || $value[1] != ",") $this->throwError("expecting list"); |
| 1372 |
$values = $value[2]; |
| 1373 |
$numValues = count($values); |
| 1374 |
if ($expectedArgs != $numValues) { |
| 1375 |
if ($name) { |
| 1376 |
$name = $name . ": "; |
| 1377 |
} |
| 1378 |
|
| 1379 |
$this->throwError("${name}expecting $expectedArgs arguments, got $numValues"); |
| 1380 |
} |
| 1381 |
|
| 1382 |
return $values; |
| 1383 |
} |
| 1384 |
} |
| 1385 |
|
| 1386 |
public function assertMinArgs($value, $expectedMinArgs, $name="") { |
| 1387 |
if ($value[0] !== "list" || $value[1] != ",") $this->throwError("expecting list"); |
| 1388 |
$values = $value[2]; |
| 1389 |
$numValues = count($values); |
| 1390 |
if ($expectedMinArgs > $numValues) { |
| 1391 |
if ($name) { |
| 1392 |
$name = $name . ": "; |
| 1393 |
} |
| 1394 |
|
| 1395 |
$this->throwError("${name}expecting at least $expectedMinArgs arguments, got $numValues"); |
| 1396 |
} |
| 1397 |
|
| 1398 |
return $values; |
| 1399 |
} |
| 1400 |
|
| 1401 |
protected function toHSL($color) { |
| 1402 |
if ($color[0] == 'hsl') return $color; |
| 1403 |
|
| 1404 |
$r = $color[1] / 255; |
| 1405 |
$g = $color[2] / 255; |
| 1406 |
$b = $color[3] / 255; |
| 1407 |
|
| 1408 |
$min = min($r, $g, $b); |
| 1409 |
$max = max($r, $g, $b); |
| 1410 |
|
| 1411 |
$L = ($min + $max) / 2; |
| 1412 |
if ($min == $max) { |
| 1413 |
$S = $H = 0; |
| 1414 |
} else { |
| 1415 |
if ($L < 0.5) |
| 1416 |
$S = ($max - $min)/($max + $min); |
| 1417 |
else |
| 1418 |
$S = ($max - $min)/(2.0 - $max - $min); |
| 1419 |
|
| 1420 |
if ($r == $max) $H = ($g - $b)/($max - $min); |
| 1421 |
elseif ($g == $max) $H = 2.0 + ($b - $r)/($max - $min); |
| 1422 |
elseif ($b == $max) $H = 4.0 + ($r - $g)/($max - $min); |
| 1423 |
|
| 1424 |
} |
| 1425 |
|
| 1426 |
$out = array('hsl', |
| 1427 |
($H < 0 ? $H + 6 : $H)*60, |
| 1428 |
$S*100, |
| 1429 |
$L*100, |
| 1430 |
); |
| 1431 |
|
| 1432 |
if (count($color) > 4) $out[] = $color[4]; // copy alpha |
| 1433 |
return $out; |
| 1434 |
} |
| 1435 |
|
| 1436 |
protected function toRGB_helper($comp, $temp1, $temp2) { |
| 1437 |
if ($comp < 0) $comp += 1.0; |
| 1438 |
elseif ($comp > 1) $comp -= 1.0; |
| 1439 |
|
| 1440 |
if (6 * $comp < 1) return $temp1 + ($temp2 - $temp1) * 6 * $comp; |
| 1441 |
if (2 * $comp < 1) return $temp2; |
| 1442 |
if (3 * $comp < 2) return $temp1 + ($temp2 - $temp1)*((2/3) - $comp) * 6; |
| 1443 |
|
| 1444 |
return $temp1; |
| 1445 |
} |
| 1446 |
|
| 1447 |
/** |
| 1448 |
* Converts a hsl array into a color value in rgb. |
| 1449 |
* Expects H to be in range of 0 to 360, S and L in 0 to 100 |
| 1450 |
*/ |
| 1451 |
protected function toRGB($color) { |
| 1452 |
if ($color[0] == 'color') return $color; |
| 1453 |
|
| 1454 |
$H = $color[1] / 360; |
| 1455 |
$S = $color[2] / 100; |
| 1456 |
$L = $color[3] / 100; |
| 1457 |
|
| 1458 |
if ($S == 0) { |
| 1459 |
$r = $g = $b = $L; |
| 1460 |
} else { |
| 1461 |
$temp2 = $L < 0.5 ? |
| 1462 |
$L*(1.0 + $S) : |
| 1463 |
$L + $S - $L * $S; |
| 1464 |
|
| 1465 |
$temp1 = 2.0 * $L - $temp2; |
| 1466 |
|
| 1467 |
$r = $this->toRGB_helper($H + 1/3, $temp1, $temp2); |
| 1468 |
$g = $this->toRGB_helper($H, $temp1, $temp2); |
| 1469 |
$b = $this->toRGB_helper($H - 1/3, $temp1, $temp2); |
| 1470 |
} |
| 1471 |
|
| 1472 |
// $out = array('color', round($r*255), round($g*255), round($b*255)); |
| 1473 |
$out = array('color', $r*255, $g*255, $b*255); |
| 1474 |
if (count($color) > 4) $out[] = $color[4]; // copy alpha |
| 1475 |
return $out; |
| 1476 |
} |
| 1477 |
|
| 1478 |
protected function clamp($v, $max = 1, $min = 0) { |
| 1479 |
return min($max, max($min, $v)); |
| 1480 |
} |
| 1481 |
|
| 1482 |
/** |
| 1483 |
* Convert the rgb, rgba, hsl color literals of function type |
| 1484 |
* as returned by the parser into values of color type. |
| 1485 |
*/ |
| 1486 |
protected function funcToColor($func) { |
| 1487 |
$fname = $func[1]; |
| 1488 |
if ($func[2][0] != 'list') return false; // need a list of arguments |
| 1489 |
$rawComponents = $func[2][2]; |
| 1490 |
|
| 1491 |
if ($fname == 'hsl' || $fname == 'hsla') { |
| 1492 |
$hsl = array('hsl'); |
| 1493 |
$i = 0; |
| 1494 |
foreach ($rawComponents as $c) { |
| 1495 |
$val = $this->reduce($c); |
| 1496 |
$val = isset($val[1]) ? floatval($val[1]) : 0; |
| 1497 |
|
| 1498 |
if ($i == 0) $clamp = 360; |
| 1499 |
elseif ($i < 3) $clamp = 100; |
| 1500 |
else $clamp = 1; |
| 1501 |
|
| 1502 |
$hsl[] = $this->clamp($val, $clamp); |
| 1503 |
$i++; |
| 1504 |
} |
| 1505 |
|
| 1506 |
while (count($hsl) < 4) $hsl[] = 0; |
| 1507 |
return $this->toRGB($hsl); |
| 1508 |
|
| 1509 |
} elseif ($fname == 'rgb' || $fname == 'rgba') { |
| 1510 |
$components = array(); |
| 1511 |
$i = 1; |
| 1512 |
foreach ($rawComponents as $c) { |
| 1513 |
$c = $this->reduce($c); |
| 1514 |
if ($i < 4) { |
| 1515 |
if ($c[0] == "number" && $c[2] == "%") { |
| 1516 |
$components[] = 255 * ($c[1] / 100); |
| 1517 |
} else { |
| 1518 |
$components[] = floatval($c[1]); |
| 1519 |
} |
| 1520 |
} elseif ($i == 4) { |
| 1521 |
if ($c[0] == "number" && $c[2] == "%") { |
| 1522 |
$components[] = 1.0 * ($c[1] / 100); |
| 1523 |
} else { |
| 1524 |
$components[] = floatval($c[1]); |
| 1525 |
} |
| 1526 |
} else break; |
| 1527 |
|
| 1528 |
$i++; |
| 1529 |
} |
| 1530 |
while (count($components) < 3) $components[] = 0; |
| 1531 |
array_unshift($components, 'color'); |
| 1532 |
return $this->fixColor($components); |
| 1533 |
} |
| 1534 |
|
| 1535 |
return false; |
| 1536 |
} |
| 1537 |
|
| 1538 |
protected function reduce($value, $forExpression = false) { |
| 1539 |
switch ($value[0]) { |
| 1540 |
case "interpolate": |
| 1541 |
$reduced = $this->reduce($value[1]); |
| 1542 |
$var = $this->compileValue($reduced); |
| 1543 |
$res = $this->reduce(array("variable", $this->vPrefix . $var)); |
| 1544 |
|
| 1545 |
if ($res[0] == "raw_color") { |
| 1546 |
$res = $this->coerceColor($res); |
| 1547 |
} |
| 1548 |
|
| 1549 |
if (empty($value[2])) $res = $this->lib_e($res); |
| 1550 |
|
| 1551 |
return $res; |
| 1552 |
case "variable": |
| 1553 |
$key = $value[1]; |
| 1554 |
if (is_array($key)) { |
| 1555 |
$key = $this->reduce($key); |
| 1556 |
$key = $this->vPrefix . $this->compileValue($this->lib_e($key)); |
| 1557 |
} |
| 1558 |
|
| 1559 |
$seen =& $this->env->seenNames; |
| 1560 |
|
| 1561 |
if (!empty($seen[$key])) { |
| 1562 |
$this->throwError("infinite loop detected: $key"); |
| 1563 |
} |
| 1564 |
|
| 1565 |
$seen[$key] = true; |
| 1566 |
$out = $this->reduce($this->get($key)); |
| 1567 |
$seen[$key] = false; |
| 1568 |
return $out; |
| 1569 |
case "list": |
| 1570 |
foreach ($value[2] as &$item) { |
| 1571 |
$item = $this->reduce($item, $forExpression); |
| 1572 |
} |
| 1573 |
return $value; |
| 1574 |
case "expression": |
| 1575 |
return $this->evaluate($value); |
| 1576 |
case "string": |
| 1577 |
foreach ($value[2] as &$part) { |
| 1578 |
if (is_array($part)) { |
| 1579 |
$strip = $part[0] == "variable"; |
| 1580 |
$part = $this->reduce($part); |
| 1581 |
if ($strip) $part = $this->lib_e($part); |
| 1582 |
} |
| 1583 |
} |
| 1584 |
return $value; |
| 1585 |
case "escape": |
| 1586 |
list(,$inner) = $value; |
| 1587 |
return $this->lib_e($this->reduce($inner)); |
| 1588 |
case "function": |
| 1589 |
$color = $this->funcToColor($value); |
| 1590 |
if ($color) return $color; |
| 1591 |
|
| 1592 |
list(, $name, $args) = $value; |
| 1593 |
if ($name == "%") $name = "_sprintf"; |
| 1594 |
|
| 1595 |
$f = isset($this->libFunctions[$name]) ? |
| 1596 |
$this->libFunctions[$name] : array($this, 'lib_'.str_replace('-', '_', $name)); |
| 1597 |
|
| 1598 |
if (is_callable($f)) { |
| 1599 |
if ($args[0] == 'list') |
| 1600 |
$args = self::compressList($args[2], $args[1]); |
| 1601 |
|
| 1602 |
$ret = call_user_func($f, $this->reduce($args, true), $this); |
| 1603 |
|
| 1604 |
if (is_null($ret)) { |
| 1605 |
return array("string", "", array( |
| 1606 |
$name, "(", $args, ")" |
| 1607 |
)); |
| 1608 |
} |
| 1609 |
|
| 1610 |
// convert to a typed value if the result is a php primitive |
| 1611 |
if (is_numeric($ret)) $ret = array('number', $ret, ""); |
| 1612 |
elseif (!is_array($ret)) $ret = array('keyword', $ret); |
| 1613 |
|
| 1614 |
return $ret; |
| 1615 |
} |
| 1616 |
|
| 1617 |
// plain function, reduce args |
| 1618 |
$value[2] = $this->reduce($value[2]); |
| 1619 |
return $value; |
| 1620 |
case "unary": |
| 1621 |
list(, $op, $exp) = $value; |
| 1622 |
$exp = $this->reduce($exp); |
| 1623 |
|
| 1624 |
if ($exp[0] == "number") { |
| 1625 |
switch ($op) { |
| 1626 |
case "+": |
| 1627 |
return $exp; |
| 1628 |
case "-": |
| 1629 |
$exp[1] *= -1; |
| 1630 |
return $exp; |
| 1631 |
} |
| 1632 |
} |
| 1633 |
return array("string", "", array($op, $exp)); |
| 1634 |
} |
| 1635 |
|
| 1636 |
if ($forExpression) { |
| 1637 |
switch ($value[0]) { |
| 1638 |
case "keyword": |
| 1639 |
if ($color = $this->coerceColor($value)) { |
| 1640 |
return $color; |
| 1641 |
} |
| 1642 |
break; |
| 1643 |
case "raw_color": |
| 1644 |
return $this->coerceColor($value); |
| 1645 |
} |
| 1646 |
} |
| 1647 |
|
| 1648 |
return $value; |
| 1649 |
} |
| 1650 |
|
| 1651 |
|
| 1652 |
// coerce a value for use in color operation |
| 1653 |
protected function coerceColor($value) { |
| 1654 |
switch($value[0]) { |
| 1655 |
case 'color': return $value; |
| 1656 |
case 'raw_color': |
| 1657 |
$c = array("color", 0, 0, 0); |
| 1658 |
$colorStr = substr($value[1], 1); |
| 1659 |
$num = hexdec($colorStr); |
| 1660 |
$width = strlen($colorStr) == 3 ? 16 : 256; |
| 1661 |
|
| 1662 |
for ($i = 3; $i > 0; $i--) { // 3 2 1 |
| 1663 |
$t = $num % $width; |
| 1664 |
$num /= $width; |
| 1665 |
|
| 1666 |
$c[$i] = $t * (256/$width) + $t * floor(16/$width); |
| 1667 |
} |
| 1668 |
|
| 1669 |
return $c; |
| 1670 |
case 'keyword': |
| 1671 |
$name = $value[1]; |
| 1672 |
if (isset(self::$cssColors[$name])) { |
| 1673 |
$rgba = explode(',', self::$cssColors[$name]); |
| 1674 |
|
| 1675 |
if(isset($rgba[3])) |
| 1676 |
return array('color', $rgba[0], $rgba[1], $rgba[2], $rgba[3]); |
| 1677 |
|
| 1678 |
return array('color', $rgba[0], $rgba[1], $rgba[2]); |
| 1679 |
} |
| 1680 |
return null; |
| 1681 |
} |
| 1682 |
} |
| 1683 |
|
| 1684 |
// make something string like into a string |
| 1685 |
protected function coerceString($value) { |
| 1686 |
switch ($value[0]) { |
| 1687 |
case "string": |
| 1688 |
return $value; |
| 1689 |
case "keyword": |
| 1690 |
return array("string", "", array($value[1])); |
| 1691 |
} |
| 1692 |
return null; |
| 1693 |
} |
| 1694 |
|
| 1695 |
// turn list of length 1 into value type |
| 1696 |
protected function flattenList($value) { |
| 1697 |
if ($value[0] == "list" && count($value[2]) == 1) { |
| 1698 |
return $this->flattenList($value[2][0]); |
| 1699 |
} |
| 1700 |
return $value; |
| 1701 |
} |
| 1702 |
|
| 1703 |
public function toBool($a) { |
| 1704 |
if ($a) return self::$TRUE; |
| 1705 |
else return self::$FALSE; |
| 1706 |
} |
| 1707 |
|
| 1708 |
// evaluate an expression |
| 1709 |
protected function evaluate($exp) { |
| 1710 |
list(, $op, $left, $right, $whiteBefore, $whiteAfter) = $exp; |
| 1711 |
|
| 1712 |
$left = $this->reduce($left, true); |
| 1713 |
$right = $this->reduce($right, true); |
| 1714 |
|
| 1715 |
if ($leftColor = $this->coerceColor($left)) { |
| 1716 |
$left = $leftColor; |
| 1717 |
} |
| 1718 |
|
| 1719 |
if ($rightColor = $this->coerceColor($right)) { |
| 1720 |
$right = $rightColor; |
| 1721 |
} |
| 1722 |
|
| 1723 |
$ltype = $left[0]; |
| 1724 |
$rtype = $right[0]; |
| 1725 |
|
| 1726 |
// operators that work on all types |
| 1727 |
if ($op == "and") { |
| 1728 |
return $this->toBool($left == self::$TRUE && $right == self::$TRUE); |
| 1729 |
} |
| 1730 |
|
| 1731 |
if ($op == "=") { |
| 1732 |
return $this->toBool($this->eq($left, $right) ); |
| 1733 |
} |
| 1734 |
|
| 1735 |
if ($op == "+" && !is_null($str = $this->stringConcatenate($left, $right))) { |
| 1736 |
return $str; |
| 1737 |
} |
| 1738 |
|
| 1739 |
// type based operators |
| 1740 |
$fname = "op_${ltype}_${rtype}"; |
| 1741 |
if (is_callable(array($this, $fname))) { |
| 1742 |
$out = $this->$fname($op, $left, $right); |
| 1743 |
if (!is_null($out)) return $out; |
| 1744 |
} |
| 1745 |
|
| 1746 |
// make the expression look it did before being parsed |
| 1747 |
$paddedOp = $op; |
| 1748 |
if ($whiteBefore) $paddedOp = " " . $paddedOp; |
| 1749 |
if ($whiteAfter) $paddedOp .= " "; |
| 1750 |
|
| 1751 |
return array("string", "", array($left, $paddedOp, $right)); |
| 1752 |
} |
| 1753 |
|
| 1754 |
protected function stringConcatenate($left, $right) { |
| 1755 |
if ($strLeft = $this->coerceString($left)) { |
| 1756 |
if ($right[0] == "string") { |
| 1757 |
$right[1] = ""; |
| 1758 |
} |
| 1759 |
$strLeft[2][] = $right; |
| 1760 |
return $strLeft; |
| 1761 |
} |
| 1762 |
|
| 1763 |
if ($strRight = $this->coerceString($right)) { |
| 1764 |
array_unshift($strRight[2], $left); |
| 1765 |
return $strRight; |
| 1766 |
} |
| 1767 |
} |
| 1768 |
|
| 1769 |
protected function convert( $number, $to ) |
| 1770 |
{ |
| 1771 |
$value = $this->assertNumber( $number ); |
| 1772 |
$from = $number[2]; |
| 1773 |
|
| 1774 |
// easy out |
| 1775 |
if( $from == $to ) |
| 1776 |
return $number; |
| 1777 |
|
| 1778 |
// check if the from value is a length |
| 1779 |
if( ( $from_index = array_search( $from, self::$lengths ) ) !== false ) { |
| 1780 |
// make sure to value is too |
| 1781 |
if( in_array( $to, self::$lengths ) ) { |
| 1782 |
// do the actual conversion |
| 1783 |
$to_index = array_search( $to, self::$lengths ); |
| 1784 |
$px = $value * self::$lengths_to_base[ $from_index ]; |
| 1785 |
$result = $px * ( 1 / self::$lengths_to_base[ $to_index ] ); |
| 1786 |
|
| 1787 |
$result = round( $result, 8 ); |
| 1788 |
return array( "number", $result, $to ); |
| 1789 |
} |
| 1790 |
} |
| 1791 |
|
| 1792 |
// do the same check for times |
| 1793 |
if( in_array( $from, self::$times ) ) { |
| 1794 |
if( in_array( $to, self::$times ) ) { |
| 1795 |
// currently only ms and s are valid |
| 1796 |
if( $to == "ms" ) |
| 1797 |
$result = $value * 1000; |
| 1798 |
else |
| 1799 |
$result = $value / 1000; |
| 1800 |
|
| 1801 |
$result = round( $result, 8 ); |
| 1802 |
return array( "number", $result, $to ); |
| 1803 |
} |
| 1804 |
} |
| 1805 |
|
| 1806 |
// lastly check for an angle |
| 1807 |
if( in_array( $from, self::$angles ) ) { |
| 1808 |
// convert whatever angle it is into degrees |
| 1809 |
if( $from == "rad" ) |
| 1810 |
$deg = rad2deg( $value ); |
| 1811 |
|
| 1812 |
else if( $from == "turn" ) |
| 1813 |
$deg = $value * 360; |
| 1814 |
|
| 1815 |
else if( $from == "grad" ) |
| 1816 |
$deg = $value / (400 / 360); |
| 1817 |
|
| 1818 |
else |
| 1819 |
$deg = $value; |
| 1820 |
|
| 1821 |
// Then convert it from degrees into desired unit |
| 1822 |
if( $to == "deg" ) |
| 1823 |
$result = $deg; |
| 1824 |
|
| 1825 |
if( $to == "rad" ) |
| 1826 |
$result = deg2rad( $deg ); |
| 1827 |
|
| 1828 |
if( $to == "turn" ) |
| 1829 |
$result = $value / 360; |
| 1830 |
|
| 1831 |
if( $to == "grad" ) |
| 1832 |
$result = $value * (400 / 360); |
| 1833 |
|
| 1834 |
$result = round( $result, 8 ); |
| 1835 |
return array( "number", $result, $to ); |
| 1836 |
} |
| 1837 |
|
| 1838 |
// we don't know how to convert these |
| 1839 |
$this->throwError( "Cannot convert {$from} to {$to}" ); |
| 1840 |
} |
| 1841 |
|
| 1842 |
// make sure a color's components don't go out of bounds |
| 1843 |
protected function fixColor($c) { |
| 1844 |
foreach (range(1, 3) as $i) { |
| 1845 |
if ($c[$i] < 0) $c[$i] = 0; |
| 1846 |
if ($c[$i] > 255) $c[$i] = 255; |
| 1847 |
} |
| 1848 |
|
| 1849 |
return $c; |
| 1850 |
} |
| 1851 |
|
| 1852 |
protected function op_number_color($op, $lft, $rgt) { |
| 1853 |
if ($op == '+' || $op == '*') { |
| 1854 |
return $this->op_color_number($op, $rgt, $lft); |
| 1855 |
} |
| 1856 |
} |
| 1857 |
|
| 1858 |
protected function op_color_number($op, $lft, $rgt) { |
| 1859 |
if ($rgt[0] == '%') $rgt[1] /= 100; |
| 1860 |
|
| 1861 |
return $this->op_color_color($op, $lft, |
| 1862 |
array_fill(1, count($lft) - 1, $rgt[1])); |
| 1863 |
} |
| 1864 |
|
| 1865 |
protected function op_color_color($op, $left, $right) { |
| 1866 |
$out = array('color'); |
| 1867 |
$max = count($left) > count($right) ? count($left) : count($right); |
| 1868 |
foreach (range(1, $max - 1) as $i) { |
| 1869 |
$lval = isset($left[$i]) ? $left[$i] : 0; |
| 1870 |
$rval = isset($right[$i]) ? $right[$i] : 0; |
| 1871 |
switch ($op) { |
| 1872 |
case '+': |
| 1873 |
$out[] = $lval + $rval; |
| 1874 |
break; |
| 1875 |
case '-': |
| 1876 |
$out[] = $lval - $rval; |
| 1877 |
break; |
| 1878 |
case '*': |
| 1879 |
$out[] = $lval * $rval; |
| 1880 |
break; |
| 1881 |
case '%': |
| 1882 |
$out[] = $lval % $rval; |
| 1883 |
break; |
| 1884 |
case '/': |
| 1885 |
if ($rval == 0) $this->throwError("evaluate error: can't divide by zero"); |
| 1886 |
$out[] = $lval / $rval; |
| 1887 |
break; |
| 1888 |
default: |
| 1889 |
$this->throwError('evaluate error: color op number failed on op '.$op); |
| 1890 |
} |
| 1891 |
} |
| 1892 |
return $this->fixColor($out); |
| 1893 |
} |
| 1894 |
|
| 1895 |
function lib_red($color){ |
| 1896 |
$color = $this->coerceColor($color); |
| 1897 |
if (is_null($color)) { |
| 1898 |
$this->throwError('color expected for red()'); |
| 1899 |
} |
| 1900 |
|
| 1901 |
return $color[1]; |
| 1902 |
} |
| 1903 |
|
| 1904 |
function lib_green($color){ |
| 1905 |
$color = $this->coerceColor($color); |
| 1906 |
if (is_null($color)) { |
| 1907 |
$this->throwError('color expected for green()'); |
| 1908 |
} |
| 1909 |
|
| 1910 |
return $color[2]; |
| 1911 |
} |
| 1912 |
|
| 1913 |
function lib_blue($color){ |
| 1914 |
$color = $this->coerceColor($color); |
| 1915 |
if (is_null($color)) { |
| 1916 |
$this->throwError('color expected for blue()'); |
| 1917 |
} |
| 1918 |
|
| 1919 |
return $color[3]; |
| 1920 |
} |
| 1921 |
|
| 1922 |
|
| 1923 |
// operator on two numbers |
| 1924 |
protected function op_number_number($op, $left, $right) { |
| 1925 |
$unit = empty($left[2]) ? $right[2] : $left[2]; |
| 1926 |
|
| 1927 |
$value = 0; |
| 1928 |
switch ($op) { |
| 1929 |
case '+': |
| 1930 |
$value = $left[1] + $right[1]; |
| 1931 |
break; |
| 1932 |
case '*': |
| 1933 |
$value = $left[1] * $right[1]; |
| 1934 |
break; |
| 1935 |
case '-': |
| 1936 |
$value = $left[1] - $right[1]; |
| 1937 |
break; |
| 1938 |
case '%': |
| 1939 |
$value = $left[1] % $right[1]; |
| 1940 |
break; |
| 1941 |
case '/': |
| 1942 |
if ($right[1] == 0) $this->throwError('parse error: divide by zero'); |
| 1943 |
$value = $left[1] / $right[1]; |
| 1944 |
break; |
| 1945 |
case '<': |
| 1946 |
return $this->toBool($left[1] < $right[1]); |
| 1947 |
case '>': |
| 1948 |
return $this->toBool($left[1] > $right[1]); |
| 1949 |
case '>=': |
| 1950 |
return $this->toBool($left[1] >= $right[1]); |
| 1951 |
case '=<': |
| 1952 |
return $this->toBool($left[1] <= $right[1]); |
| 1953 |
default: |
| 1954 |
$this->throwError('parse error: unknown number operator: '.$op); |
| 1955 |
} |
| 1956 |
|
| 1957 |
return array("number", $value, $unit); |
| 1958 |
} |
| 1959 |
|
| 1960 |
|
| 1961 |
/* environment functions */ |
| 1962 |
|
| 1963 |
protected function makeOutputBlock($type, $selectors = null) { |
| 1964 |
$b = new stdclass; |
| 1965 |
$b->lines = array(); |
| 1966 |
$b->children = array(); |
| 1967 |
$b->selectors = $selectors; |
| 1968 |
$b->type = $type; |
| 1969 |
$b->parent = $this->scope; |
| 1970 |
return $b; |
| 1971 |
} |
| 1972 |
|
| 1973 |
// the state of execution |
| 1974 |
protected function pushEnv($block = null) { |
| 1975 |
$e = new stdclass; |
| 1976 |
$e->parent = $this->env; |
| 1977 |
$e->store = array(); |
| 1978 |
$e->block = $block; |
| 1979 |
|
| 1980 |
$this->env = $e; |
| 1981 |
return $e; |
| 1982 |
} |
| 1983 |
|
| 1984 |
// pop something off the stack |
| 1985 |
protected function popEnv() { |
| 1986 |
$old = $this->env; |
| 1987 |
$this->env = $this->env->parent; |
| 1988 |
return $old; |
| 1989 |
} |
| 1990 |
|
| 1991 |
// set something in the current env |
| 1992 |
protected function set($name, $value) { |
| 1993 |
$this->env->store[$name] = $value; |
| 1994 |
} |
| 1995 |
|
| 1996 |
|
| 1997 |
// get the highest occurrence entry for a name |
| 1998 |
protected function get($name) { |
| 1999 |
$current = $this->env; |
| 2000 |
|
| 2001 |
// track scope to evaluate |
| 2002 |
$scope_secondary = array(); |
| 2003 |
|
| 2004 |
$isArguments = $name == $this->vPrefix . 'arguments'; |
| 2005 |
while ($current) { |
| 2006 |
if ($isArguments && isset($current->arguments)) { |
| 2007 |
return array('list', ' ', $current->arguments); |
| 2008 |
} |
| 2009 |
|
| 2010 |
if (isset($current->store[$name])) |
| 2011 |
return $current->store[$name]; |
| 2012 |
// has secondary scope? |
| 2013 |
if (isset($current->storeParent)) |
| 2014 |
$scope_secondary[] = $current->storeParent; |
| 2015 |
|
| 2016 |
if (isset($current->parent)) |
| 2017 |
$current = $current->parent; |
| 2018 |
else |
| 2019 |
$current = null; |
| 2020 |
} |
| 2021 |
|
| 2022 |
while (count($scope_secondary)) { |
| 2023 |
// pop one off |
| 2024 |
$current = array_shift($scope_secondary); |
| 2025 |
while ($current) { |
| 2026 |
if ($isArguments && isset($current->arguments)) { |
| 2027 |
return array('list', ' ', $current->arguments); |
| 2028 |
} |
| 2029 |
|
| 2030 |
if (isset($current->store[$name])) { |
| 2031 |
return $current->store[$name]; |
| 2032 |
} |
| 2033 |
|
| 2034 |
// has secondary scope? |
| 2035 |
if (isset($current->storeParent)) { |
| 2036 |
$scope_secondary[] = $current->storeParent; |
| 2037 |
} |
| 2038 |
|
| 2039 |
if (isset($current->parent)) { |
| 2040 |
$current = $current->parent; |
| 2041 |
} else { |
| 2042 |
$current = null; |
| 2043 |
} |
| 2044 |
} |
| 2045 |
} |
| 2046 |
|
| 2047 |
$this->throwError("variable $name is undefined"); |
| 2048 |
} |
| 2049 |
|
| 2050 |
// inject array of unparsed strings into environment as variables |
| 2051 |
protected function injectVariables($args) { |
| 2052 |
$this->pushEnv(); |
| 2053 |
$parser = new lessc_parser($this, __METHOD__); |
| 2054 |
foreach ($args as $name => $strValue) { |
| 2055 |
if ($name[0] != '@') $name = '@'.$name; |
| 2056 |
$parser->count = 0; |
| 2057 |
$parser->buffer = (string)$strValue; |
| 2058 |
if (!$parser->propertyValue($value)) { |
| 2059 |
throw new \Exception("failed to parse passed in variable $name: $strValue"); |
| 2060 |
} |
| 2061 |
|
| 2062 |
$this->set($name, $value); |
| 2063 |
} |
| 2064 |
} |
| 2065 |
|
| 2066 |
/** |
| 2067 |
* Initialize any static state, can initialize parser for a file |
| 2068 |
* $opts isn't used yet |
| 2069 |
*/ |
| 2070 |
public function __construct($fname = null) { |
| 2071 |
if ($fname !== null) { |
| 2072 |
// used for deprecated parse method |
| 2073 |
$this->_parseFile = $fname; |
| 2074 |
} |
| 2075 |
} |
| 2076 |
|
| 2077 |
public function compile($string, $name = null) { |
| 2078 |
$locale = setlocale(LC_NUMERIC, 0); |
| 2079 |
setlocale(LC_NUMERIC, "C"); |
| 2080 |
|
| 2081 |
$this->parser = $this->makeParser($name); |
| 2082 |
$root = $this->parser->parse($string); |
| 2083 |
|
| 2084 |
$this->env = null; |
| 2085 |
$this->scope = null; |
| 2086 |
$this->allParsedFiles = array(); |
| 2087 |
|
| 2088 |
$this->formatter = $this->newFormatter(); |
| 2089 |
|
| 2090 |
if (!empty($this->registeredVars)) { |
| 2091 |
$this->injectVariables($this->registeredVars); |
| 2092 |
} |
| 2093 |
|
| 2094 |
$this->sourceParser = $this->parser; // used for error messages |
| 2095 |
$this->compileBlock($root); |
| 2096 |
|
| 2097 |
ob_start(); |
| 2098 |
$this->formatter->block($this->scope); |
| 2099 |
$out = ob_get_clean(); |
| 2100 |
setlocale(LC_NUMERIC, $locale); |
| 2101 |
return $out; |
| 2102 |
} |
| 2103 |
|
| 2104 |
public function compileFile($fname, $outFname = null) { |
| 2105 |
if (!is_readable($fname)) { |
| 2106 |
throw new \Exception('load error: failed to find '.$fname); |
| 2107 |
} |
| 2108 |
|
| 2109 |
$pi = pathinfo($fname); |
| 2110 |
|
| 2111 |
$oldImport = $this->importDir; |
| 2112 |
|
| 2113 |
$this->importDir = (array)$this->importDir; |
| 2114 |
$this->importDir[] = $pi['dirname'].'/'; |
| 2115 |
|
| 2116 |
$this->addParsedFile($fname); |
| 2117 |
|
| 2118 |
$out = $this->compile(file_get_contents($fname), $fname); |
| 2119 |
|
| 2120 |
$this->importDir = $oldImport; |
| 2121 |
|
| 2122 |
if ($outFname !== null) { |
| 2123 |
return file_put_contents($outFname, $out); |
| 2124 |
} |
| 2125 |
|
| 2126 |
return $out; |
| 2127 |
} |
| 2128 |
|
| 2129 |
/** |
| 2130 |
* Based on explicit input/output files does a full change check on cache before compiling. |
| 2131 |
* |
| 2132 |
* @param string $in |
| 2133 |
* @param string $out |
| 2134 |
* @param boolean $force |
| 2135 |
* @return string Compiled CSS results |
| 2136 |
* @throws Exception |
| 2137 |
*/ |
| 2138 |
public function checkedCachedCompile($in, $out, $force = false) { |
| 2139 |
if (!is_file($in) || !is_readable($in)) { |
| 2140 |
throw new Exception('Invalid or unreadable input file specified.'); |
| 2141 |
} |
| 2142 |
if (is_dir($out) || !is_writable(file_exists($out) ? $out : dirname($out))) { |
| 2143 |
throw new Exception('Invalid or unwritable output file specified.'); |
| 2144 |
} |
| 2145 |
|
| 2146 |
$outMeta = $out . '.meta'; |
| 2147 |
$metadata = null; |
| 2148 |
if (!$force && is_file($outMeta)) { |
| 2149 |
$metadata = unserialize(file_get_contents($outMeta)); |
| 2150 |
} |
| 2151 |
|
| 2152 |
$output = $this->cachedCompile($metadata ? $metadata : $in); |
| 2153 |
|
| 2154 |
if (!$metadata || $metadata['updated'] != $output['updated']) { |
| 2155 |
$css = $output['compiled']; |
| 2156 |
unset($output['compiled']); |
| 2157 |
file_put_contents($out, $css); |
| 2158 |
file_put_contents($outMeta, serialize($output)); |
| 2159 |
} else { |
| 2160 |
$css = file_get_contents($out); |
| 2161 |
} |
| 2162 |
|
| 2163 |
return $css; |
| 2164 |
} |
| 2165 |
|
| 2166 |
// compile only if changed input has changed or output doesn't exist |
| 2167 |
public function checkedCompile($in, $out) { |
| 2168 |
if (!is_file($out) || filemtime($in) > filemtime($out)) { |
| 2169 |
$this->compileFile($in, $out); |
| 2170 |
return true; |
| 2171 |
} |
| 2172 |
return false; |
| 2173 |
} |
| 2174 |
|
| 2175 |
/** |
| 2176 |
* Execute lessphp on a .less file or a lessphp cache structure |
| 2177 |
* |
| 2178 |
* The lessphp cache structure contains information about a specific |
| 2179 |
* less file having been parsed. It can be used as a hint for future |
| 2180 |
* calls to determine whether or not a rebuild is required. |
| 2181 |
* |
| 2182 |
* The cache structure contains two important keys that may be used |
| 2183 |
* externally: |
| 2184 |
* |
| 2185 |
* compiled: The final compiled CSS |
| 2186 |
* updated: The time (in seconds) the CSS was last compiled |
| 2187 |
* |
| 2188 |
* The cache structure is a plain-ol' PHP associative array and can |
| 2189 |
* be serialized and unserialized without a hitch. |
| 2190 |
* |
| 2191 |
* @param mixed $in Input |
| 2192 |
* @param bool $force Force rebuild? |
| 2193 |
* @return array lessphp cache structure |
| 2194 |
*/ |
| 2195 |
public function cachedCompile($in, $force = false) { |
| 2196 |
// assume no root |
| 2197 |
$root = null; |
| 2198 |
|
| 2199 |
if (is_string($in)) { |
| 2200 |
$root = $in; |
| 2201 |
} elseif (is_array($in) and isset($in['root'])) { |
| 2202 |
if ($force or ! isset($in['files'])) { |
| 2203 |
// If we are forcing a recompile or if for some reason the |
| 2204 |
// structure does not contain any file information we should |
| 2205 |
// specify the root to trigger a rebuild. |
| 2206 |
$root = $in['root']; |
| 2207 |
} elseif (isset($in['files']) and is_array($in['files'])) { |
| 2208 |
foreach ($in['files'] as $fname => $ftime ) { |
| 2209 |
if (!file_exists($fname) or filemtime($fname) > $ftime) { |
| 2210 |
// One of the files we knew about previously has changed |
| 2211 |
// so we should look at our incoming root again. |
| 2212 |
$root = $in['root']; |
| 2213 |
break; |
| 2214 |
} |
| 2215 |
} |
| 2216 |
} |
| 2217 |
} else { |
| 2218 |
// TODO: Throw an exception? We got neither a string nor something |
| 2219 |
// that looks like a compatible lessphp cache structure. |
| 2220 |
return null; |
| 2221 |
} |
| 2222 |
|
| 2223 |
if ($root !== null) { |
| 2224 |
// If we have a root value which means we should rebuild. |
| 2225 |
$out = array(); |
| 2226 |
$out['root'] = $root; |
| 2227 |
$out['compiled'] = $this->compileFile($root); |
| 2228 |
$out['files'] = $this->allParsedFiles(); |
| 2229 |
$out['updated'] = time(); |
| 2230 |
return $out; |
| 2231 |
} else { |
| 2232 |
// No changes, pass back the structure |
| 2233 |
// we were given initially. |
| 2234 |
return $in; |
| 2235 |
} |
| 2236 |
|
| 2237 |
} |
| 2238 |
|
| 2239 |
// parse and compile buffer |
| 2240 |
// This is deprecated |
| 2241 |
public function parse($str = null, $initialVariables = null) { |
| 2242 |
if (is_array($str)) { |
| 2243 |
$initialVariables = $str; |
| 2244 |
$str = null; |
| 2245 |
} |
| 2246 |
|
| 2247 |
$oldVars = $this->registeredVars; |
| 2248 |
if ($initialVariables !== null) { |
| 2249 |
$this->setVariables($initialVariables); |
| 2250 |
} |
| 2251 |
|
| 2252 |
if ($str == null) { |
| 2253 |
if (empty($this->_parseFile)) { |
| 2254 |
throw new \Exception("nothing to parse"); |
| 2255 |
} |
| 2256 |
|
| 2257 |
$out = $this->compileFile($this->_parseFile); |
| 2258 |
} else { |
| 2259 |
$out = $this->compile($str); |
| 2260 |
} |
| 2261 |
|
| 2262 |
$this->registeredVars = $oldVars; |
| 2263 |
return $out; |
| 2264 |
} |
| 2265 |
|
| 2266 |
protected function makeParser($name) { |
| 2267 |
$parser = new lessc_parser($this, $name); |
| 2268 |
$parser->writeComments = $this->preserveComments; |
| 2269 |
|
| 2270 |
return $parser; |
| 2271 |
} |
| 2272 |
|
| 2273 |
public function setFormatter($name) { |
| 2274 |
$this->formatterName = $name; |
| 2275 |
} |
| 2276 |
|
| 2277 |
protected function newFormatter() { |
| 2278 |
$className = "lessc_formatter_lessjs"; |
| 2279 |
if (!empty($this->formatterName)) { |
| 2280 |
if (!is_string($this->formatterName)) |
| 2281 |
return $this->formatterName; |
| 2282 |
$className = "lessc_formatter_$this->formatterName"; |
| 2283 |
} |
| 2284 |
|
| 2285 |
return new $className; |
| 2286 |
} |
| 2287 |
|
| 2288 |
public function setPreserveComments($preserve) { |
| 2289 |
$this->preserveComments = $preserve; |
| 2290 |
} |
| 2291 |
|
| 2292 |
public function registerFunction($name, $func) { |
| 2293 |
$this->libFunctions[$name] = $func; |
| 2294 |
} |
| 2295 |
|
| 2296 |
public function unregisterFunction($name) { |
| 2297 |
unset($this->libFunctions[$name]); |
| 2298 |
} |
| 2299 |
|
| 2300 |
public function setVariables($variables) { |
| 2301 |
$this->registeredVars = array_merge($this->registeredVars, $variables); |
| 2302 |
} |
| 2303 |
|
| 2304 |
public function unsetVariable($name) { |
| 2305 |
unset($this->registeredVars[$name]); |
| 2306 |
} |
| 2307 |
|
| 2308 |
public function setImportDir($dirs) { |
| 2309 |
$this->importDir = (array)$dirs; |
| 2310 |
} |
| 2311 |
|
| 2312 |
public function addImportDir($dir) { |
| 2313 |
$this->importDir = (array)$this->importDir; |
| 2314 |
$this->importDir[] = $dir; |
| 2315 |
} |
| 2316 |
|
| 2317 |
public function allParsedFiles() { |
| 2318 |
return $this->allParsedFiles; |
| 2319 |
} |
| 2320 |
|
| 2321 |
public function addParsedFile($file) { |
| 2322 |
$this->allParsedFiles[realpath($file)] = filemtime($file); |
| 2323 |
} |
| 2324 |
|
| 2325 |
/** |
| 2326 |
* Uses the current value of $this->count to show line and line number |
| 2327 |
*/ |
| 2328 |
public function throwError($msg = null) { |
| 2329 |
if ($this->sourceLoc >= 0) { |
| 2330 |
$this->sourceParser->throwError($msg, $this->sourceLoc); |
| 2331 |
} |
| 2332 |
throw new \Exception($msg); |
| 2333 |
} |
| 2334 |
|
| 2335 |
// compile file $in to file $out if $in is newer than $out |
| 2336 |
// returns true when it compiles, false otherwise |
| 2337 |
public static function ccompile($in, $out, $less = null) { |
| 2338 |
if ($less === null) { |
| 2339 |
$less = new self; |
| 2340 |
} |
| 2341 |
return $less->checkedCompile($in, $out); |
| 2342 |
} |
| 2343 |
|
| 2344 |
public static function cexecute($in, $force = false, $less = null) { |
| 2345 |
if ($less === null) { |
| 2346 |
$less = new self; |
| 2347 |
} |
| 2348 |
return $less->cachedCompile($in, $force); |
| 2349 |
} |
| 2350 |
|
| 2351 |
static protected $cssColors = array( |
| 2352 |
'aliceblue' => '240,248,255', |
| 2353 |
'antiquewhite' => '250,235,215', |
| 2354 |
'aqua' => '0,255,255', |
| 2355 |
'aquamarine' => '127,255,212', |
| 2356 |
'azure' => '240,255,255', |
| 2357 |
'beige' => '245,245,220', |
| 2358 |
'bisque' => '255,228,196', |
| 2359 |
'black' => '0,0,0', |
| 2360 |
'blanchedalmond' => '255,235,205', |
| 2361 |
'blue' => '0,0,255', |
| 2362 |
'blueviolet' => '138,43,226', |
| 2363 |
'brown' => '165,42,42', |
| 2364 |
'burlywood' => '222,184,135', |
| 2365 |
'cadetblue' => '95,158,160', |
| 2366 |
'chartreuse' => '127,255,0', |
| 2367 |
'chocolate' => '210,105,30', |
| 2368 |
'coral' => '255,127,80', |
| 2369 |
'cornflowerblue' => '100,149,237', |
| 2370 |
'cornsilk' => '255,248,220', |
| 2371 |
'crimson' => '220,20,60', |
| 2372 |
'cyan' => '0,255,255', |
| 2373 |
'darkblue' => '0,0,139', |
| 2374 |
'darkcyan' => '0,139,139', |
| 2375 |
'darkgoldenrod' => '184,134,11', |
| 2376 |
'darkgray' => '169,169,169', |
| 2377 |
'darkgreen' => '0,100,0', |
| 2378 |
'darkgrey' => '169,169,169', |
| 2379 |
'darkkhaki' => '189,183,107', |
| 2380 |
'darkmagenta' => '139,0,139', |
| 2381 |
'darkolivegreen' => '85,107,47', |
| 2382 |
'darkorange' => '255,140,0', |
| 2383 |
'darkorchid' => '153,50,204', |
| 2384 |
'darkred' => '139,0,0', |
| 2385 |
'darksalmon' => '233,150,122', |
| 2386 |
'darkseagreen' => '143,188,143', |
| 2387 |
'darkslateblue' => '72,61,139', |
| 2388 |
'darkslategray' => '47,79,79', |
| 2389 |
'darkslategrey' => '47,79,79', |
| 2390 |
'darkturquoise' => '0,206,209', |
| 2391 |
'darkviolet' => '148,0,211', |
| 2392 |
'deeppink' => '255,20,147', |
| 2393 |
'deepskyblue' => '0,191,255', |
| 2394 |
'dimgray' => '105,105,105', |
| 2395 |
'dimgrey' => '105,105,105', |
| 2396 |
'dodgerblue' => '30,144,255', |
| 2397 |
'firebrick' => '178,34,34', |
| 2398 |
'floralwhite' => '255,250,240', |
| 2399 |
'forestgreen' => '34,139,34', |
| 2400 |
'fuchsia' => '255,0,255', |
| 2401 |
'gainsboro' => '220,220,220', |
| 2402 |
'ghostwhite' => '248,248,255', |
| 2403 |
'gold' => '255,215,0', |
| 2404 |
'goldenrod' => '218,165,32', |
| 2405 |
'gray' => '128,128,128', |
| 2406 |
'green' => '0,128,0', |
| 2407 |
'greenyellow' => '173,255,47', |
| 2408 |
'grey' => '128,128,128', |
| 2409 |
'honeydew' => '240,255,240', |
| 2410 |
'hotpink' => '255,105,180', |
| 2411 |
'indianred' => '205,92,92', |
| 2412 |
'indigo' => '75,0,130', |
| 2413 |
'ivory' => '255,255,240', |
| 2414 |
'khaki' => '240,230,140', |
| 2415 |
'lavender' => '230,230,250', |
| 2416 |
'lavenderblush' => '255,240,245', |
| 2417 |
'lawngreen' => '124,252,0', |
| 2418 |
'lemonchiffon' => '255,250,205', |
| 2419 |
'lightblue' => '173,216,230', |
| 2420 |
'lightcoral' => '240,128,128', |
| 2421 |
'lightcyan' => '224,255,255', |
| 2422 |
'lightgoldenrodyellow' => '250,250,210', |
| 2423 |
'lightgray' => '211,211,211', |
| 2424 |
'lightgreen' => '144,238,144', |
| 2425 |
'lightgrey' => '211,211,211', |
| 2426 |
'lightpink' => '255,182,193', |
| 2427 |
'lightsalmon' => '255,160,122', |
| 2428 |
'lightseagreen' => '32,178,170', |
| 2429 |
'lightskyblue' => '135,206,250', |
| 2430 |
'lightslategray' => '119,136,153', |
| 2431 |
'lightslategrey' => '119,136,153', |
| 2432 |
'lightsteelblue' => '176,196,222', |
| 2433 |
'lightyellow' => '255,255,224', |
| 2434 |
'lime' => '0,255,0', |
| 2435 |
'limegreen' => '50,205,50', |
| 2436 |
'linen' => '250,240,230', |
| 2437 |
'magenta' => '255,0,255', |
| 2438 |
'maroon' => '128,0,0', |
| 2439 |
'mediumaquamarine' => '102,205,170', |
| 2440 |
'mediumblue' => '0,0,205', |
| 2441 |
'mediumorchid' => '186,85,211', |
| 2442 |
'mediumpurple' => '147,112,219', |
| 2443 |
'mediumseagreen' => '60,179,113', |
| 2444 |
'mediumslateblue' => '123,104,238', |
| 2445 |
'mediumspringgreen' => '0,250,154', |
| 2446 |
'mediumturquoise' => '72,209,204', |
| 2447 |
'mediumvioletred' => '199,21,133', |
| 2448 |
'midnightblue' => '25,25,112', |
| 2449 |
'mintcream' => '245,255,250', |
| 2450 |
'mistyrose' => '255,228,225', |
| 2451 |
'moccasin' => '255,228,181', |
| 2452 |
'navajowhite' => '255,222,173', |
| 2453 |
'navy' => '0,0,128', |
| 2454 |
'oldlace' => '253,245,230', |
| 2455 |
'olive' => '128,128,0', |
| 2456 |
'olivedrab' => '107,142,35', |
| 2457 |
'orange' => '255,165,0', |
| 2458 |
'orangered' => '255,69,0', |
| 2459 |
'orchid' => '218,112,214', |
| 2460 |
'palegoldenrod' => '238,232,170', |
| 2461 |
'palegreen' => '152,251,152', |
| 2462 |
'paleturquoise' => '175,238,238', |
| 2463 |
'palevioletred' => '219,112,147', |
| 2464 |
'papayawhip' => '255,239,213', |
| 2465 |
'peachpuff' => '255,218,185', |
| 2466 |
'peru' => '205,133,63', |
| 2467 |
'pink' => '255,192,203', |
| 2468 |
'plum' => '221,160,221', |
| 2469 |
'powderblue' => '176,224,230', |
| 2470 |
'purple' => '128,0,128', |
| 2471 |
'red' => '255,0,0', |
| 2472 |
'rosybrown' => '188,143,143', |
| 2473 |
'royalblue' => '65,105,225', |
| 2474 |
'saddlebrown' => '139,69,19', |
| 2475 |
'salmon' => '250,128,114', |
| 2476 |
'sandybrown' => '244,164,96', |
| 2477 |
'seagreen' => '46,139,87', |
| 2478 |
'seashell' => '255,245,238', |
| 2479 |
'sienna' => '160,82,45', |
| 2480 |
'silver' => '192,192,192', |
| 2481 |
'skyblue' => '135,206,235', |
| 2482 |
'slateblue' => '106,90,205', |
| 2483 |
'slategray' => '112,128,144', |
| 2484 |
'slategrey' => '112,128,144', |
| 2485 |
'snow' => '255,250,250', |
| 2486 |
'springgreen' => '0,255,127', |
| 2487 |
'steelblue' => '70,130,180', |
| 2488 |
'tan' => '210,180,140', |
| 2489 |
'teal' => '0,128,128', |
| 2490 |
'thistle' => '216,191,216', |
| 2491 |
'tomato' => '255,99,71', |
| 2492 |
'transparent' => '0,0,0,0', |
| 2493 |
'turquoise' => '64,224,208', |
| 2494 |
'violet' => '238,130,238', |
| 2495 |
'wheat' => '245,222,179', |
| 2496 |
'white' => '255,255,255', |
| 2497 |
'whitesmoke' => '245,245,245', |
| 2498 |
'yellow' => '255,255,0', |
| 2499 |
'yellowgreen' => '154,205,50' |
| 2500 |
); |
| 2501 |
} |
| 2502 |
|
| 2503 |
// responsible for taking a string of LESS code and converting it into a |
| 2504 |
// syntax tree |
| 2505 |
class lessc_parser { |
| 2506 |
static protected $nextBlockId = 0; // used to uniquely identify blocks |
| 2507 |
|
| 2508 |
static protected $precedence = array( |
| 2509 |
'=<' => 0, |
| 2510 |
'>=' => 0, |
| 2511 |
'=' => 0, |
| 2512 |
'<' => 0, |
| 2513 |
'>' => 0, |
| 2514 |
|
| 2515 |
'+' => 1, |
| 2516 |
'-' => 1, |
| 2517 |
'*' => 2, |
| 2518 |
'/' => 2, |
| 2519 |
'%' => 2, |
| 2520 |
); |
| 2521 |
|
| 2522 |
static protected $whitePattern; |
| 2523 |
static protected $commentMulti; |
| 2524 |
|
| 2525 |
static protected $commentSingle = "//"; |
| 2526 |
static protected $commentMultiLeft = "/*"; |
| 2527 |
static protected $commentMultiRight = "*/"; |
| 2528 |
|
| 2529 |
// regex string to match any of the operators |
| 2530 |
static protected $operatorString; |
| 2531 |
|
| 2532 |
// these properties will supress division unless it's inside parenthases |
| 2533 |
static protected $supressDivisionProps = |
| 2534 |
array('/border-radius$/i', '/^font$/i'); |
| 2535 |
|
| 2536 |
protected $blockDirectives = array("font-face", "keyframes", "page", "-moz-document", "viewport", "-moz-viewport", "-o-viewport", "-ms-viewport"); |
| 2537 |
protected $lineDirectives = array("charset"); |
| 2538 |
|
| 2539 |
/** |
| 2540 |
* if we are in parens we can be more liberal with whitespace around |
| 2541 |
* operators because it must evaluate to a single value and thus is less |
| 2542 |
* ambiguous. |
| 2543 |
* |
| 2544 |
* Consider: |
| 2545 |
* property1: 10 -5; // is two numbers, 10 and -5 |
| 2546 |
* property2: (10 -5); // should evaluate to 5 |
| 2547 |
*/ |
| 2548 |
protected $inParens = false; |
| 2549 |
|
| 2550 |
// caches preg escaped literals |
| 2551 |
static protected $literalCache = array(); |
| 2552 |
|
| 2553 |
public function __construct($lessc, $sourceName = null) { |
| 2554 |
$this->eatWhiteDefault = true; |
| 2555 |
// reference to less needed for vPrefix, mPrefix, and parentSelector |
| 2556 |
$this->lessc = $lessc; |
| 2557 |
|
| 2558 |
$this->sourceName = $sourceName; // name used for error messages |
| 2559 |
|
| 2560 |
$this->writeComments = false; |
| 2561 |
|
| 2562 |
if (!self::$operatorString) { |
| 2563 |
self::$operatorString = |
| 2564 |
'('.implode('|', array_map(array('lessc', 'preg_quote'), |
| 2565 |
array_keys(self::$precedence))).')'; |
| 2566 |
|
| 2567 |
$commentSingle = lessc::preg_quote(self::$commentSingle); |
| 2568 |
$commentMultiLeft = lessc::preg_quote(self::$commentMultiLeft); |
| 2569 |
$commentMultiRight = lessc::preg_quote(self::$commentMultiRight); |
| 2570 |
|
| 2571 |
self::$commentMulti = $commentMultiLeft.'.*?'.$commentMultiRight; |
| 2572 |
self::$whitePattern = '/'.$commentSingle.'[^\n]*\s*|('.self::$commentMulti.')\s*|\s+/Ais'; |
| 2573 |
} |
| 2574 |
} |
| 2575 |
|
| 2576 |
public function parse($buffer) { |
| 2577 |
$this->count = 0; |
| 2578 |
$this->line = 1; |
| 2579 |
|
| 2580 |
$this->env = null; // block stack |
| 2581 |
$this->buffer = $this->writeComments ? $buffer : $this->removeComments($buffer); |
| 2582 |
$this->pushSpecialBlock("root"); |
| 2583 |
$this->eatWhiteDefault = true; |
| 2584 |
$this->seenComments = array(); |
| 2585 |
|
| 2586 |
// trim whitespace on head |
| 2587 |
// if (preg_match('/^\s+/', $this->buffer, $m)) { |
| 2588 |
// $this->line += substr_count($m[0], "\n"); |
| 2589 |
// $this->buffer = ltrim($this->buffer); |
| 2590 |
// } |
| 2591 |
$this->whitespace(); |
| 2592 |
|
| 2593 |
// parse the entire file |
| 2594 |
while (false !== $this->parseChunk()); |
| 2595 |
|
| 2596 |
if ($this->count != strlen($this->buffer)) |
| 2597 |
$this->throwError(); |
| 2598 |
|
| 2599 |
// TODO report where the block was opened |
| 2600 |
if ( !property_exists($this->env, 'parent') || !is_null($this->env->parent) ) |
| 2601 |
throw new \Exception('parse error: unclosed block'); |
| 2602 |
|
| 2603 |
return $this->env; |
| 2604 |
} |
| 2605 |
|
| 2606 |
/** |
| 2607 |
* Parse a single chunk off the head of the buffer and append it to the |
| 2608 |
* current parse environment. |
| 2609 |
* Returns false when the buffer is empty, or when there is an error. |
| 2610 |
* |
| 2611 |
* This function is called repeatedly until the entire document is |
| 2612 |
* parsed. |
| 2613 |
* |
| 2614 |
* This parser is most similar to a recursive descent parser. Single |
| 2615 |
* functions represent discrete grammatical rules for the language, and |
| 2616 |
* they are able to capture the text that represents those rules. |
| 2617 |
* |
| 2618 |
* Consider the function lessc::keyword(). (all parse functions are |
| 2619 |
* structured the same) |
| 2620 |
* |
| 2621 |
* The function takes a single reference argument. When calling the |
| 2622 |
* function it will attempt to match a keyword on the head of the buffer. |
| 2623 |
* If it is successful, it will place the keyword in the referenced |
| 2624 |
* argument, advance the position in the buffer, and return true. If it |
| 2625 |
* fails then it won't advance the buffer and it will return false. |
| 2626 |
* |
| 2627 |
* All of these parse functions are powered by lessc::match(), which behaves |
| 2628 |
* the same way, but takes a literal regular expression. Sometimes it is |
| 2629 |
* more convenient to use match instead of creating a new function. |
| 2630 |
* |
| 2631 |
* Because of the format of the functions, to parse an entire string of |
| 2632 |
* grammatical rules, you can chain them together using &&. |
| 2633 |
* |
| 2634 |
* But, if some of the rules in the chain succeed before one fails, then |
| 2635 |
* the buffer position will be left at an invalid state. In order to |
| 2636 |
* avoid this, lessc::seek() is used to remember and set buffer positions. |
| 2637 |
* |
| 2638 |
* Before parsing a chain, use $s = $this->seek() to remember the current |
| 2639 |
* position into $s. Then if a chain fails, use $this->seek($s) to |
| 2640 |
* go back where we started. |
| 2641 |
*/ |
| 2642 |
protected function parseChunk() { |
| 2643 |
if (empty($this->buffer)) return false; |
| 2644 |
$s = $this->seek(); |
| 2645 |
|
| 2646 |
if ($this->whitespace()) { |
| 2647 |
return true; |
| 2648 |
} |
| 2649 |
|
| 2650 |
// setting a property |
| 2651 |
if ($this->keyword($key) && $this->assign() && |
| 2652 |
$this->propertyValue($value, $key) && $this->end()) |
| 2653 |
{ |
| 2654 |
$this->append(array('assign', $key, $value), $s); |
| 2655 |
return true; |
| 2656 |
} else { |
| 2657 |
$this->seek($s); |
| 2658 |
} |
| 2659 |
|
| 2660 |
|
| 2661 |
// look for special css blocks |
| 2662 |
if ($this->literal('@', false)) { |
| 2663 |
$this->count--; |
| 2664 |
|
| 2665 |
// media |
| 2666 |
if ($this->literal('@media')) { |
| 2667 |
if (($this->mediaQueryList($mediaQueries) || true) |
| 2668 |
&& $this->literal('{')) |
| 2669 |
{ |
| 2670 |
$media = $this->pushSpecialBlock("media"); |
| 2671 |
$media->queries = is_null($mediaQueries) ? array() : $mediaQueries; |
| 2672 |
return true; |
| 2673 |
} else { |
| 2674 |
$this->seek($s); |
| 2675 |
return false; |
| 2676 |
} |
| 2677 |
} |
| 2678 |
|
| 2679 |
if ($this->literal("@", false) && $this->keyword($dirName)) { |
| 2680 |
if ($this->isDirective($dirName, $this->blockDirectives)) { |
| 2681 |
if (($this->openString("{", $dirValue, null, array(";")) || true) && |
| 2682 |
$this->literal("{")) |
| 2683 |
{ |
| 2684 |
$dir = $this->pushSpecialBlock("directive"); |
| 2685 |
$dir->name = $dirName; |
| 2686 |
if (isset($dirValue)) $dir->value = $dirValue; |
| 2687 |
return true; |
| 2688 |
} |
| 2689 |
} elseif ($this->isDirective($dirName, $this->lineDirectives)) { |
| 2690 |
if ($this->propertyValue($dirValue) && $this->end()) { |
| 2691 |
$this->append(array("directive", $dirName, $dirValue)); |
| 2692 |
return true; |
| 2693 |
} |
| 2694 |
} elseif ($this->literal(":", true)) { |
| 2695 |
//Ruleset Definition |
| 2696 |
if (($this->openString("{", $dirValue, null, array(";")) || true) && |
| 2697 |
$this->literal("{")) |
| 2698 |
{ |
| 2699 |
$dir = $this->pushBlock($this->fixTags(array("@".$dirName))); |
| 2700 |
$dir->name = $dirName; |
| 2701 |
if (isset($dirValue)) $dir->value = $dirValue; |
| 2702 |
return true; |
| 2703 |
} |
| 2704 |
} |
| 2705 |
} |
| 2706 |
|
| 2707 |
$this->seek($s); |
| 2708 |
} |
| 2709 |
|
| 2710 |
// setting a variable |
| 2711 |
if ($this->variable($var) && $this->assign() && |
| 2712 |
$this->propertyValue($value) && $this->end()) |
| 2713 |
{ |
| 2714 |
$this->append(array('assign', $var, $value), $s); |
| 2715 |
return true; |
| 2716 |
} else { |
| 2717 |
$this->seek($s); |
| 2718 |
} |
| 2719 |
|
| 2720 |
if ($this->import($importValue)) { |
| 2721 |
$this->append($importValue, $s); |
| 2722 |
return true; |
| 2723 |
} |
| 2724 |
|
| 2725 |
// opening parametric mixin |
| 2726 |
if ($this->tag($tag, true) && $this->argumentDef($args, $isVararg) && |
| 2727 |
($this->guards($guards) || true) && |
| 2728 |
$this->literal('{')) |
| 2729 |
{ |
| 2730 |
$block = $this->pushBlock($this->fixTags(array($tag))); |
| 2731 |
$block->args = $args; |
| 2732 |
$block->isVararg = $isVararg; |
| 2733 |
if (!empty($guards)) $block->guards = $guards; |
| 2734 |
return true; |
| 2735 |
} else { |
| 2736 |
$this->seek($s); |
| 2737 |
} |
| 2738 |
|
| 2739 |
// opening a simple block |
| 2740 |
if ($this->tags($tags) && $this->literal('{', false)) { |
| 2741 |
$tags = $this->fixTags($tags); |
| 2742 |
$this->pushBlock($tags); |
| 2743 |
return true; |
| 2744 |
} else { |
| 2745 |
$this->seek($s); |
| 2746 |
} |
| 2747 |
|
| 2748 |
// closing a block |
| 2749 |
if ($this->literal('}', false)) { |
| 2750 |
try { |
| 2751 |
$block = $this->pop(); |
| 2752 |
} catch (\Exception $e) { |
| 2753 |
$this->seek($s); |
| 2754 |
$this->throwError($e->getMessage()); |
| 2755 |
} |
| 2756 |
|
| 2757 |
$hidden = false; |
| 2758 |
if (is_null($block->type)) { |
| 2759 |
$hidden = true; |
| 2760 |
if (!isset($block->args)) { |
| 2761 |
foreach ($block->tags as $tag) { |
| 2762 |
if (!is_string($tag) || $tag[0] != $this->lessc->mPrefix) { |
| 2763 |
$hidden = false; |
| 2764 |
break; |
| 2765 |
} |
| 2766 |
} |
| 2767 |
} |
| 2768 |
|
| 2769 |
foreach ($block->tags as $tag) { |
| 2770 |
if (is_string($tag)) { |
| 2771 |
$this->env->children[$tag][] = $block; |
| 2772 |
} |
| 2773 |
} |
| 2774 |
} |
| 2775 |
|
| 2776 |
if (!$hidden) { |
| 2777 |
$this->append(array('block', $block), $s); |
| 2778 |
} |
| 2779 |
|
| 2780 |
// this is done here so comments aren't bundled into he block that |
| 2781 |
// was just closed |
| 2782 |
$this->whitespace(); |
| 2783 |
return true; |
| 2784 |
} |
| 2785 |
|
| 2786 |
// mixin |
| 2787 |
if ($this->mixinTags($tags) && |
| 2788 |
($this->argumentDef($argv, $isVararg) || true) && |
| 2789 |
($this->keyword($suffix) || true) && $this->end()) |
| 2790 |
{ |
| 2791 |
$tags = $this->fixTags($tags); |
| 2792 |
$this->append(array('mixin', $tags, $argv, $suffix), $s); |
| 2793 |
return true; |
| 2794 |
} else { |
| 2795 |
$this->seek($s); |
| 2796 |
} |
| 2797 |
|
| 2798 |
// spare ; |
| 2799 |
if ($this->literal(';')) return true; |
| 2800 |
|
| 2801 |
return false; // got nothing, throw error |
| 2802 |
} |
| 2803 |
|
| 2804 |
protected function isDirective($dirname, $directives) { |
| 2805 |
// TODO: cache pattern in parser |
| 2806 |
$pattern = implode("|", |
| 2807 |
array_map(array("lessc", "preg_quote"), $directives)); |
| 2808 |
$pattern = '/^(-[a-z-]+-)?(' . $pattern . ')$/i'; |
| 2809 |
|
| 2810 |
return preg_match($pattern, $dirname); |
| 2811 |
} |
| 2812 |
|
| 2813 |
protected function fixTags($tags) { |
| 2814 |
// move @ tags out of variable namespace |
| 2815 |
foreach ($tags as &$tag) { |
| 2816 |
if ($tag[0] == $this->lessc->vPrefix) |
| 2817 |
$tag[0] = $this->lessc->mPrefix; |
| 2818 |
} |
| 2819 |
return $tags; |
| 2820 |
} |
| 2821 |
|
| 2822 |
// a list of expressions |
| 2823 |
protected function expressionList(&$exps) { |
| 2824 |
$values = array(); |
| 2825 |
|
| 2826 |
while ($this->expression($exp)) { |
| 2827 |
$values[] = $exp; |
| 2828 |
} |
| 2829 |
|
| 2830 |
if (count($values) == 0) return false; |
| 2831 |
|
| 2832 |
$exps = lessc::compressList($values, ' '); |
| 2833 |
return true; |
| 2834 |
} |
| 2835 |
|
| 2836 |
/** |
| 2837 |
* Attempt to consume an expression. |
| 2838 |
* @link http://en.wikipedia.org/wiki/Operator-precedence_parser#Pseudo-code |
| 2839 |
*/ |
| 2840 |
protected function expression(&$out) { |
| 2841 |
if ($this->value($lhs)) { |
| 2842 |
$out = $this->expHelper($lhs, 0); |
| 2843 |
|
| 2844 |
// look for / shorthand |
| 2845 |
if (!empty($this->env->supressedDivision)) { |
| 2846 |
unset($this->env->supressedDivision); |
| 2847 |
$s = $this->seek(); |
| 2848 |
if ($this->literal("/") && $this->value($rhs)) { |
| 2849 |
$out = array("list", "", |
| 2850 |
array($out, array("keyword", "/"), $rhs)); |
| 2851 |
} else { |
| 2852 |
$this->seek($s); |
| 2853 |
} |
| 2854 |
} |
| 2855 |
|
| 2856 |
return true; |
| 2857 |
} |
| 2858 |
return false; |
| 2859 |
} |
| 2860 |
|
| 2861 |
/** |
| 2862 |
* recursively parse infix equation with $lhs at precedence $minP |
| 2863 |
*/ |
| 2864 |
protected function expHelper($lhs, $minP) { |
| 2865 |
$this->inExp = true; |
| 2866 |
$ss = $this->seek(); |
| 2867 |
|
| 2868 |
while (true) { |
| 2869 |
$whiteBefore = isset($this->buffer[$this->count - 1]) && |
| 2870 |
ctype_space($this->buffer[$this->count - 1]); |
| 2871 |
|
| 2872 |
// If there is whitespace before the operator, then we require |
| 2873 |
// whitespace after the operator for it to be an expression |
| 2874 |
$needWhite = $whiteBefore && !$this->inParens; |
| 2875 |
|
| 2876 |
if ($this->match(self::$operatorString.($needWhite ? '\s' : ''), $m) && self::$precedence[$m[1]] >= $minP) { |
| 2877 |
if (!$this->inParens && isset($this->env->currentProperty) && $m[1] == "/" && empty($this->env->supressedDivision)) { |
| 2878 |
foreach (self::$supressDivisionProps as $pattern) { |
| 2879 |
if (preg_match($pattern, $this->env->currentProperty)) { |
| 2880 |
$this->env->supressedDivision = true; |
| 2881 |
break 2; |
| 2882 |
} |
| 2883 |
} |
| 2884 |
} |
| 2885 |
|
| 2886 |
|
| 2887 |
$whiteAfter = isset($this->buffer[$this->count - 1]) && |
| 2888 |
ctype_space($this->buffer[$this->count - 1]); |
| 2889 |
|
| 2890 |
if (!$this->value($rhs)) break; |
| 2891 |
|
| 2892 |
// peek for next operator to see what to do with rhs |
| 2893 |
if ($this->peek(self::$operatorString, $next) && self::$precedence[$next[1]] > self::$precedence[$m[1]]) { |
| 2894 |
$rhs = $this->expHelper($rhs, self::$precedence[$next[1]]); |
| 2895 |
} |
| 2896 |
|
| 2897 |
$lhs = array('expression', $m[1], $lhs, $rhs, $whiteBefore, $whiteAfter); |
| 2898 |
$ss = $this->seek(); |
| 2899 |
|
| 2900 |
continue; |
| 2901 |
} |
| 2902 |
|
| 2903 |
break; |
| 2904 |
} |
| 2905 |
|
| 2906 |
$this->seek($ss); |
| 2907 |
|
| 2908 |
return $lhs; |
| 2909 |
} |
| 2910 |
|
| 2911 |
// consume a list of values for a property |
| 2912 |
public function propertyValue(&$value, $keyName = null) { |
| 2913 |
$values = array(); |
| 2914 |
|
| 2915 |
if ($keyName !== null) $this->env->currentProperty = $keyName; |
| 2916 |
|
| 2917 |
$s = null; |
| 2918 |
while ($this->expressionList($v)) { |
| 2919 |
$values[] = $v; |
| 2920 |
$s = $this->seek(); |
| 2921 |
if (!$this->literal(',')) break; |
| 2922 |
} |
| 2923 |
|
| 2924 |
if ($s) $this->seek($s); |
| 2925 |
|
| 2926 |
if ($keyName !== null) unset($this->env->currentProperty); |
| 2927 |
|
| 2928 |
if (count($values) == 0) return false; |
| 2929 |
|
| 2930 |
$value = lessc::compressList($values, ', '); |
| 2931 |
return true; |
| 2932 |
} |
| 2933 |
|
| 2934 |
protected function parenValue(&$out) { |
| 2935 |
$s = $this->seek(); |
| 2936 |
|
| 2937 |
// speed shortcut |
| 2938 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "(") { |
| 2939 |
return false; |
| 2940 |
} |
| 2941 |
|
| 2942 |
$inParens = $this->inParens; |
| 2943 |
if ($this->literal("(") && |
| 2944 |
($this->inParens = true) && $this->expression($exp) && |
| 2945 |
$this->literal(")")) |
| 2946 |
{ |
| 2947 |
$out = $exp; |
| 2948 |
$this->inParens = $inParens; |
| 2949 |
return true; |
| 2950 |
} else { |
| 2951 |
$this->inParens = $inParens; |
| 2952 |
$this->seek($s); |
| 2953 |
} |
| 2954 |
|
| 2955 |
return false; |
| 2956 |
} |
| 2957 |
|
| 2958 |
// a single value |
| 2959 |
protected function value(&$value) { |
| 2960 |
$s = $this->seek(); |
| 2961 |
|
| 2962 |
// speed shortcut |
| 2963 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "-") { |
| 2964 |
// negation |
| 2965 |
if ($this->literal("-", false) && |
| 2966 |
(($this->variable($inner) && $inner = array("variable", $inner)) || |
| 2967 |
$this->unit($inner) || |
| 2968 |
$this->parenValue($inner))) |
| 2969 |
{ |
| 2970 |
$value = array("unary", "-", $inner); |
| 2971 |
return true; |
| 2972 |
} else { |
| 2973 |
$this->seek($s); |
| 2974 |
} |
| 2975 |
} |
| 2976 |
|
| 2977 |
if ($this->parenValue($value)) return true; |
| 2978 |
if ($this->unit($value)) return true; |
| 2979 |
if ($this->color($value)) return true; |
| 2980 |
if ($this->func($value)) return true; |
| 2981 |
if ($this->stringValue($value)) return true; |
| 2982 |
|
| 2983 |
if ($this->keyword($word)) { |
| 2984 |
$value = array('keyword', $word); |
| 2985 |
return true; |
| 2986 |
} |
| 2987 |
|
| 2988 |
// try a variable |
| 2989 |
if ($this->variable($var)) { |
| 2990 |
$value = array('variable', $var); |
| 2991 |
return true; |
| 2992 |
} |
| 2993 |
|
| 2994 |
// unquote string (should this work on any type? |
| 2995 |
if ($this->literal("~") && $this->stringValue($str)) { |
| 2996 |
$value = array("escape", $str); |
| 2997 |
return true; |
| 2998 |
} else { |
| 2999 |
$this->seek($s); |
| 3000 |
} |
| 3001 |
|
| 3002 |
// css hack: \0 |
| 3003 |
if ($this->literal('\\') && $this->match('([0-9]+)', $m)) { |
| 3004 |
$value = array('keyword', '\\'.$m[1]); |
| 3005 |
return true; |
| 3006 |
} else { |
| 3007 |
$this->seek($s); |
| 3008 |
} |
| 3009 |
|
| 3010 |
return false; |
| 3011 |
} |
| 3012 |
|
| 3013 |
// an import statement |
| 3014 |
protected function import(&$out) { |
| 3015 |
if (!$this->literal('@import')) return false; |
| 3016 |
|
| 3017 |
// @import "something.css" media; |
| 3018 |
// @import url("something.css") media; |
| 3019 |
// @import url(something.css) media; |
| 3020 |
|
| 3021 |
if ($this->propertyValue($value)) { |
| 3022 |
$out = array("import", $value); |
| 3023 |
return true; |
| 3024 |
} |
| 3025 |
} |
| 3026 |
|
| 3027 |
protected function mediaQueryList(&$out) { |
| 3028 |
if ($this->genericList($list, "mediaQuery", ",", false)) { |
| 3029 |
$out = $list[2]; |
| 3030 |
return true; |
| 3031 |
} |
| 3032 |
return false; |
| 3033 |
} |
| 3034 |
|
| 3035 |
protected function mediaQuery(&$out) { |
| 3036 |
$s = $this->seek(); |
| 3037 |
|
| 3038 |
$expressions = null; |
| 3039 |
$parts = array(); |
| 3040 |
|
| 3041 |
if (($this->literal("only") && ($only = true) || $this->literal("not") && ($not = true) || true) && $this->keyword($mediaType)) { |
| 3042 |
$prop = array("mediaType"); |
| 3043 |
if (isset($only)) $prop[] = "only"; |
| 3044 |
if (isset($not)) $prop[] = "not"; |
| 3045 |
$prop[] = $mediaType; |
| 3046 |
$parts[] = $prop; |
| 3047 |
} else { |
| 3048 |
$this->seek($s); |
| 3049 |
} |
| 3050 |
|
| 3051 |
|
| 3052 |
if (!empty($mediaType) && !$this->literal("and")) { |
| 3053 |
// ~ |
| 3054 |
} else { |
| 3055 |
$this->genericList($expressions, "mediaExpression", "and", false); |
| 3056 |
if (is_array($expressions)) $parts = array_merge($parts, $expressions[2]); |
| 3057 |
} |
| 3058 |
|
| 3059 |
if (count($parts) == 0) { |
| 3060 |
$this->seek($s); |
| 3061 |
return false; |
| 3062 |
} |
| 3063 |
|
| 3064 |
$out = $parts; |
| 3065 |
return true; |
| 3066 |
} |
| 3067 |
|
| 3068 |
protected function mediaExpression(&$out) { |
| 3069 |
$s = $this->seek(); |
| 3070 |
$value = null; |
| 3071 |
if ($this->literal("(") && |
| 3072 |
$this->keyword($feature) && |
| 3073 |
($this->literal(":") && $this->expression($value) || true) && |
| 3074 |
$this->literal(")")) |
| 3075 |
{ |
| 3076 |
$out = array("mediaExp", $feature); |
| 3077 |
if ($value) $out[] = $value; |
| 3078 |
return true; |
| 3079 |
} elseif ($this->variable($variable)) { |
| 3080 |
$out = array('variable', $variable); |
| 3081 |
return true; |
| 3082 |
} |
| 3083 |
|
| 3084 |
$this->seek($s); |
| 3085 |
return false; |
| 3086 |
} |
| 3087 |
|
| 3088 |
// an unbounded string stopped by $end |
| 3089 |
protected function openString($end, &$out, $nestingOpen=null, $rejectStrs = null) { |
| 3090 |
$oldWhite = $this->eatWhiteDefault; |
| 3091 |
$this->eatWhiteDefault = false; |
| 3092 |
|
| 3093 |
$stop = array("'", '"', "@{", $end); |
| 3094 |
$stop = array_map(array("lessc", "preg_quote"), $stop); |
| 3095 |
// $stop[] = self::$commentMulti; |
| 3096 |
|
| 3097 |
if (!is_null($rejectStrs)) { |
| 3098 |
$stop = array_merge($stop, $rejectStrs); |
| 3099 |
} |
| 3100 |
|
| 3101 |
$patt = '(.*?)('.implode("|", $stop).')'; |
| 3102 |
|
| 3103 |
$nestingLevel = 0; |
| 3104 |
|
| 3105 |
$content = array(); |
| 3106 |
while ($this->match($patt, $m, false)) { |
| 3107 |
if (!empty($m[1])) { |
| 3108 |
$content[] = $m[1]; |
| 3109 |
if ($nestingOpen) { |
| 3110 |
$nestingLevel += substr_count($m[1], $nestingOpen); |
| 3111 |
} |
| 3112 |
} |
| 3113 |
|
| 3114 |
$tok = $m[2]; |
| 3115 |
|
| 3116 |
$this->count-= strlen($tok); |
| 3117 |
if ($tok == $end) { |
| 3118 |
if ($nestingLevel == 0) { |
| 3119 |
break; |
| 3120 |
} else { |
| 3121 |
$nestingLevel--; |
| 3122 |
} |
| 3123 |
} |
| 3124 |
|
| 3125 |
if (($tok == "'" || $tok == '"') && $this->stringValue($str)) { |
| 3126 |
$content[] = $str; |
| 3127 |
continue; |
| 3128 |
} |
| 3129 |
|
| 3130 |
if ($tok == "@{" && $this->interpolation($inter)) { |
| 3131 |
$content[] = $inter; |
| 3132 |
continue; |
| 3133 |
} |
| 3134 |
|
| 3135 |
if (!empty($rejectStrs) && in_array($tok, $rejectStrs)) { |
| 3136 |
break; |
| 3137 |
} |
| 3138 |
|
| 3139 |
$content[] = $tok; |
| 3140 |
$this->count+= strlen($tok); |
| 3141 |
} |
| 3142 |
|
| 3143 |
$this->eatWhiteDefault = $oldWhite; |
| 3144 |
|
| 3145 |
if (count($content) == 0) return false; |
| 3146 |
|
| 3147 |
// trim the end |
| 3148 |
if (is_string(end($content))) { |
| 3149 |
$content[count($content) - 1] = rtrim(end($content)); |
| 3150 |
} |
| 3151 |
|
| 3152 |
$out = array("string", "", $content); |
| 3153 |
return true; |
| 3154 |
} |
| 3155 |
|
| 3156 |
protected function stringValue(&$out) { |
| 3157 |
$s = $this->seek(); |
| 3158 |
if ($this->literal('"', false)) { |
| 3159 |
$delim = '"'; |
| 3160 |
} elseif ($this->literal("'", false)) { |
| 3161 |
$delim = "'"; |
| 3162 |
} else { |
| 3163 |
return false; |
| 3164 |
} |
| 3165 |
|
| 3166 |
$content = array(); |
| 3167 |
|
| 3168 |
// look for either ending delim , escape, or string interpolation |
| 3169 |
$patt = '([^\n]*?)(@\{|\\\\|' . |
| 3170 |
lessc::preg_quote($delim).')'; |
| 3171 |
|
| 3172 |
$oldWhite = $this->eatWhiteDefault; |
| 3173 |
$this->eatWhiteDefault = false; |
| 3174 |
|
| 3175 |
while ($this->match($patt, $m, false)) { |
| 3176 |
$content[] = $m[1]; |
| 3177 |
if ($m[2] == "@{") { |
| 3178 |
$this->count -= strlen($m[2]); |
| 3179 |
if ($this->interpolation($inter, false)) { |
| 3180 |
$content[] = $inter; |
| 3181 |
} else { |
| 3182 |
$this->count += strlen($m[2]); |
| 3183 |
$content[] = "@{"; // ignore it |
| 3184 |
} |
| 3185 |
} elseif ($m[2] == '\\') { |
| 3186 |
$content[] = $m[2]; |
| 3187 |
if ($this->literal($delim, false)) { |
| 3188 |
$content[] = $delim; |
| 3189 |
} |
| 3190 |
} else { |
| 3191 |
$this->count -= strlen($delim); |
| 3192 |
break; // delim |
| 3193 |
} |
| 3194 |
} |
| 3195 |
|
| 3196 |
$this->eatWhiteDefault = $oldWhite; |
| 3197 |
|
| 3198 |
if ($this->literal($delim)) { |
| 3199 |
$out = array("string", $delim, $content); |
| 3200 |
return true; |
| 3201 |
} |
| 3202 |
|
| 3203 |
$this->seek($s); |
| 3204 |
return false; |
| 3205 |
} |
| 3206 |
|
| 3207 |
protected function interpolation(&$out) { |
| 3208 |
$oldWhite = $this->eatWhiteDefault; |
| 3209 |
$this->eatWhiteDefault = true; |
| 3210 |
|
| 3211 |
$s = $this->seek(); |
| 3212 |
if ($this->literal("@{") && |
| 3213 |
$this->openString("}", $interp, null, array("'", '"', ";")) && |
| 3214 |
$this->literal("}", false)) |
| 3215 |
{ |
| 3216 |
$out = array("interpolate", $interp); |
| 3217 |
$this->eatWhiteDefault = $oldWhite; |
| 3218 |
if ($this->eatWhiteDefault) $this->whitespace(); |
| 3219 |
return true; |
| 3220 |
} |
| 3221 |
|
| 3222 |
$this->eatWhiteDefault = $oldWhite; |
| 3223 |
$this->seek($s); |
| 3224 |
return false; |
| 3225 |
} |
| 3226 |
|
| 3227 |
protected function unit(&$unit) { |
| 3228 |
// speed shortcut |
| 3229 |
if (isset($this->buffer[$this->count])) { |
| 3230 |
$char = $this->buffer[$this->count]; |
| 3231 |
if (!ctype_digit($char) && $char != ".") return false; |
| 3232 |
} |
| 3233 |
|
| 3234 |
if ($this->match('([0-9]+(?:\.[0-9]*)?|\.[0-9]+)([%a-zA-Z]+)?', $m)) { |
| 3235 |
$unit = array("number", $m[1], empty($m[2]) ? "" : $m[2]); |
| 3236 |
return true; |
| 3237 |
} |
| 3238 |
return false; |
| 3239 |
} |
| 3240 |
|
| 3241 |
// a # color |
| 3242 |
protected function color(&$out) { |
| 3243 |
if ($this->match('(#(?:[0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{3}))', $m)) { |
| 3244 |
if (strlen($m[1]) > 7) { |
| 3245 |
$out = array("string", "", array($m[1])); |
| 3246 |
} else { |
| 3247 |
$out = array("raw_color", $m[1]); |
| 3248 |
} |
| 3249 |
return true; |
| 3250 |
} |
| 3251 |
|
| 3252 |
return false; |
| 3253 |
} |
| 3254 |
|
| 3255 |
// consume an argument definition list surrounded by () |
| 3256 |
// each argument is a variable name with optional value |
| 3257 |
// or at the end a ... or a variable named followed by ... |
| 3258 |
// arguments are separated by , unless a ; is in the list, then ; is the |
| 3259 |
// delimiter. |
| 3260 |
protected function argumentDef(&$args, &$isVararg) { |
| 3261 |
$s = $this->seek(); |
| 3262 |
if (!$this->literal('(')) return false; |
| 3263 |
|
| 3264 |
$values = array(); |
| 3265 |
$delim = ","; |
| 3266 |
$method = "expressionList"; |
| 3267 |
|
| 3268 |
$isVararg = false; |
| 3269 |
while (true) { |
| 3270 |
if ($this->literal("...")) { |
| 3271 |
$isVararg = true; |
| 3272 |
break; |
| 3273 |
} |
| 3274 |
|
| 3275 |
if ($this->$method($value)) { |
| 3276 |
if ($value[0] == "variable") { |
| 3277 |
$arg = array("arg", $value[1]); |
| 3278 |
$ss = $this->seek(); |
| 3279 |
|
| 3280 |
if ($this->assign() && $this->$method($rhs)) { |
| 3281 |
$arg[] = $rhs; |
| 3282 |
} else { |
| 3283 |
$this->seek($ss); |
| 3284 |
if ($this->literal("...")) { |
| 3285 |
$arg[0] = "rest"; |
| 3286 |
$isVararg = true; |
| 3287 |
} |
| 3288 |
} |
| 3289 |
|
| 3290 |
$values[] = $arg; |
| 3291 |
if ($isVararg) break; |
| 3292 |
continue; |
| 3293 |
} else { |
| 3294 |
$values[] = array("lit", $value); |
| 3295 |
} |
| 3296 |
} |
| 3297 |
|
| 3298 |
|
| 3299 |
if (!$this->literal($delim)) { |
| 3300 |
if ($delim == "," && $this->literal(";")) { |
| 3301 |
// found new delim, convert existing args |
| 3302 |
$delim = ";"; |
| 3303 |
$method = "propertyValue"; |
| 3304 |
|
| 3305 |
// transform arg list |
| 3306 |
if (isset($values[1])) { // 2 items |
| 3307 |
$newList = array(); |
| 3308 |
foreach ($values as $i => $arg) { |
| 3309 |
switch($arg[0]) { |
| 3310 |
case "arg": |
| 3311 |
if ($i) { |
| 3312 |
$this->throwError("Cannot mix ; and , as delimiter types"); |
| 3313 |
} |
| 3314 |
$newList[] = $arg[2]; |
| 3315 |
break; |
| 3316 |
case "lit": |
| 3317 |
$newList[] = $arg[1]; |
| 3318 |
break; |
| 3319 |
case "rest": |
| 3320 |
$this->throwError("Unexpected rest before semicolon"); |
| 3321 |
} |
| 3322 |
} |
| 3323 |
|
| 3324 |
$newList = array("list", ", ", $newList); |
| 3325 |
|
| 3326 |
switch ($values[0][0]) { |
| 3327 |
case "arg": |
| 3328 |
$newArg = array("arg", $values[0][1], $newList); |
| 3329 |
break; |
| 3330 |
case "lit": |
| 3331 |
$newArg = array("lit", $newList); |
| 3332 |
break; |
| 3333 |
} |
| 3334 |
|
| 3335 |
} elseif ($values) { // 1 item |
| 3336 |
$newArg = $values[0]; |
| 3337 |
} |
| 3338 |
|
| 3339 |
if ($newArg) { |
| 3340 |
$values = array($newArg); |
| 3341 |
} |
| 3342 |
} else { |
| 3343 |
break; |
| 3344 |
} |
| 3345 |
} |
| 3346 |
} |
| 3347 |
|
| 3348 |
if (!$this->literal(')')) { |
| 3349 |
$this->seek($s); |
| 3350 |
return false; |
| 3351 |
} |
| 3352 |
|
| 3353 |
$args = $values; |
| 3354 |
|
| 3355 |
return true; |
| 3356 |
} |
| 3357 |
|
| 3358 |
// consume a list of tags |
| 3359 |
// this accepts a hanging delimiter |
| 3360 |
protected function tags(&$tags, $simple = false, $delim = ',') { |
| 3361 |
$tags = array(); |
| 3362 |
while ($this->tag($tt, $simple)) { |
| 3363 |
$tags[] = $tt; |
| 3364 |
if (!$this->literal($delim)) break; |
| 3365 |
} |
| 3366 |
if (count($tags) == 0) return false; |
| 3367 |
|
| 3368 |
return true; |
| 3369 |
} |
| 3370 |
|
| 3371 |
// list of tags of specifying mixin path |
| 3372 |
// optionally separated by > (lazy, accepts extra >) |
| 3373 |
protected function mixinTags(&$tags) { |
| 3374 |
$tags = array(); |
| 3375 |
while ($this->tag($tt, true)) { |
| 3376 |
$tags[] = $tt; |
| 3377 |
$this->literal(">"); |
| 3378 |
} |
| 3379 |
|
| 3380 |
if (count($tags) == 0) return false; |
| 3381 |
|
| 3382 |
return true; |
| 3383 |
} |
| 3384 |
|
| 3385 |
// a bracketed value (contained within in a tag definition) |
| 3386 |
protected function tagBracket(&$parts, &$hasExpression) { |
| 3387 |
// speed shortcut |
| 3388 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "[") { |
| 3389 |
return false; |
| 3390 |
} |
| 3391 |
|
| 3392 |
$s = $this->seek(); |
| 3393 |
|
| 3394 |
$hasInterpolation = false; |
| 3395 |
|
| 3396 |
if ($this->literal("[", false)) { |
| 3397 |
$attrParts = array("["); |
| 3398 |
// keyword, string, operator |
| 3399 |
while (true) { |
| 3400 |
if ($this->literal("]", false)) { |
| 3401 |
$this->count--; |
| 3402 |
break; // get out early |
| 3403 |
} |
| 3404 |
|
| 3405 |
if ($this->match('\s+', $m)) { |
| 3406 |
$attrParts[] = " "; |
| 3407 |
continue; |
| 3408 |
} |
| 3409 |
if ($this->stringValue($str)) { |
| 3410 |
// escape parent selector, (yuck) |
| 3411 |
foreach ($str[2] as &$chunk) { |
| 3412 |
$chunk = str_replace($this->lessc->parentSelector, "$&$", $chunk); |
| 3413 |
} |
| 3414 |
|
| 3415 |
$attrParts[] = $str; |
| 3416 |
$hasInterpolation = true; |
| 3417 |
continue; |
| 3418 |
} |
| 3419 |
|
| 3420 |
if ($this->keyword($word)) { |
| 3421 |
$attrParts[] = $word; |
| 3422 |
continue; |
| 3423 |
} |
| 3424 |
|
| 3425 |
if ($this->interpolation($inter, false)) { |
| 3426 |
$attrParts[] = $inter; |
| 3427 |
$hasInterpolation = true; |
| 3428 |
continue; |
| 3429 |
} |
| 3430 |
|
| 3431 |
// operator, handles attr namespace too |
| 3432 |
if ($this->match('[|-~\$\*\^=]+', $m)) { |
| 3433 |
$attrParts[] = $m[0]; |
| 3434 |
continue; |
| 3435 |
} |
| 3436 |
|
| 3437 |
break; |
| 3438 |
} |
| 3439 |
|
| 3440 |
if ($this->literal("]", false)) { |
| 3441 |
$attrParts[] = "]"; |
| 3442 |
foreach ($attrParts as $part) { |
| 3443 |
$parts[] = $part; |
| 3444 |
} |
| 3445 |
$hasExpression = $hasExpression || $hasInterpolation; |
| 3446 |
return true; |
| 3447 |
} |
| 3448 |
$this->seek($s); |
| 3449 |
} |
| 3450 |
|
| 3451 |
$this->seek($s); |
| 3452 |
return false; |
| 3453 |
} |
| 3454 |
|
| 3455 |
// a space separated list of selectors |
| 3456 |
protected function tag(&$tag, $simple = false) { |
| 3457 |
if ($simple) |
| 3458 |
$chars = '^@,:;{}\][>\(\) "\''; |
| 3459 |
else |
| 3460 |
$chars = '^@,;{}["\''; |
| 3461 |
|
| 3462 |
$s = $this->seek(); |
| 3463 |
|
| 3464 |
$hasExpression = false; |
| 3465 |
$parts = array(); |
| 3466 |
while ($this->tagBracket($parts, $hasExpression)); |
| 3467 |
|
| 3468 |
$oldWhite = $this->eatWhiteDefault; |
| 3469 |
$this->eatWhiteDefault = false; |
| 3470 |
|
| 3471 |
while (true) { |
| 3472 |
if ($this->match('(['.$chars.'0-9]['.$chars.']*)', $m)) { |
| 3473 |
$parts[] = $m[1]; |
| 3474 |
if ($simple) break; |
| 3475 |
|
| 3476 |
while ($this->tagBracket($parts, $hasExpression)); |
| 3477 |
continue; |
| 3478 |
} |
| 3479 |
|
| 3480 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "@") { |
| 3481 |
if ($this->interpolation($interp)) { |
| 3482 |
$hasExpression = true; |
| 3483 |
$interp[2] = true; // don't unescape |
| 3484 |
$parts[] = $interp; |
| 3485 |
continue; |
| 3486 |
} |
| 3487 |
|
| 3488 |
if ($this->literal("@")) { |
| 3489 |
$parts[] = "@"; |
| 3490 |
continue; |
| 3491 |
} |
| 3492 |
} |
| 3493 |
|
| 3494 |
if ($this->unit($unit)) { // for keyframes |
| 3495 |
$parts[] = $unit[1]; |
| 3496 |
$parts[] = $unit[2]; |
| 3497 |
continue; |
| 3498 |
} |
| 3499 |
|
| 3500 |
break; |
| 3501 |
} |
| 3502 |
|
| 3503 |
$this->eatWhiteDefault = $oldWhite; |
| 3504 |
if (!$parts) { |
| 3505 |
$this->seek($s); |
| 3506 |
return false; |
| 3507 |
} |
| 3508 |
|
| 3509 |
if ($hasExpression) { |
| 3510 |
$tag = array("exp", array("string", "", $parts)); |
| 3511 |
} else { |
| 3512 |
$tag = trim(implode($parts)); |
| 3513 |
} |
| 3514 |
|
| 3515 |
$this->whitespace(); |
| 3516 |
return true; |
| 3517 |
} |
| 3518 |
|
| 3519 |
// a css function |
| 3520 |
protected function func(&$func) { |
| 3521 |
$s = $this->seek(); |
| 3522 |
|
| 3523 |
if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m) && $this->literal('(')) { |
| 3524 |
$fname = $m[1]; |
| 3525 |
|
| 3526 |
$sPreArgs = $this->seek(); |
| 3527 |
|
| 3528 |
$args = array(); |
| 3529 |
while (true) { |
| 3530 |
$ss = $this->seek(); |
| 3531 |
// this ugly nonsense is for ie filter properties |
| 3532 |
if ($this->keyword($name) && $this->literal('=') && $this->expressionList($value)) { |
| 3533 |
$args[] = array("string", "", array($name, "=", $value)); |
| 3534 |
} else { |
| 3535 |
$this->seek($ss); |
| 3536 |
if ($this->expressionList($value)) { |
| 3537 |
$args[] = $value; |
| 3538 |
} |
| 3539 |
} |
| 3540 |
|
| 3541 |
if (!$this->literal(',')) break; |
| 3542 |
} |
| 3543 |
$args = array('list', ',', $args); |
| 3544 |
|
| 3545 |
if ($this->literal(')')) { |
| 3546 |
$func = array('function', $fname, $args); |
| 3547 |
return true; |
| 3548 |
} elseif ($fname == 'url') { |
| 3549 |
// couldn't parse and in url? treat as string |
| 3550 |
$this->seek($sPreArgs); |
| 3551 |
if ($this->openString(")", $string) && $this->literal(")")) { |
| 3552 |
$func = array('function', $fname, $string); |
| 3553 |
return true; |
| 3554 |
} |
| 3555 |
} |
| 3556 |
} |
| 3557 |
|
| 3558 |
$this->seek($s); |
| 3559 |
return false; |
| 3560 |
} |
| 3561 |
|
| 3562 |
// consume a less variable |
| 3563 |
protected function variable(&$name) { |
| 3564 |
$s = $this->seek(); |
| 3565 |
if ($this->literal($this->lessc->vPrefix, false) && |
| 3566 |
($this->variable($sub) || $this->keyword($name))) |
| 3567 |
{ |
| 3568 |
if (!empty($sub)) { |
| 3569 |
$name = array('variable', $sub); |
| 3570 |
} else { |
| 3571 |
$name = $this->lessc->vPrefix.$name; |
| 3572 |
} |
| 3573 |
return true; |
| 3574 |
} |
| 3575 |
|
| 3576 |
$name = null; |
| 3577 |
$this->seek($s); |
| 3578 |
return false; |
| 3579 |
} |
| 3580 |
|
| 3581 |
/** |
| 3582 |
* Consume an assignment operator |
| 3583 |
* Can optionally take a name that will be set to the current property name |
| 3584 |
*/ |
| 3585 |
protected function assign($name = null) { |
| 3586 |
if ($name) $this->currentProperty = $name; |
| 3587 |
return $this->literal(':') || $this->literal('='); |
| 3588 |
} |
| 3589 |
|
| 3590 |
// consume a keyword |
| 3591 |
protected function keyword(&$word) { |
| 3592 |
if ($this->match('([\w_\-\*!"][\w\-_"]*)', $m)) { |
| 3593 |
$word = $m[1]; |
| 3594 |
return true; |
| 3595 |
} |
| 3596 |
return false; |
| 3597 |
} |
| 3598 |
|
| 3599 |
// consume an end of statement delimiter |
| 3600 |
protected function end() { |
| 3601 |
if ($this->literal(';', false)) { |
| 3602 |
return true; |
| 3603 |
} elseif ($this->count == strlen($this->buffer) || $this->buffer[$this->count] == '}') { |
| 3604 |
// if there is end of file or a closing block next then we don't need a ; |
| 3605 |
return true; |
| 3606 |
} |
| 3607 |
return false; |
| 3608 |
} |
| 3609 |
|
| 3610 |
protected function guards(&$guards) { |
| 3611 |
$s = $this->seek(); |
| 3612 |
|
| 3613 |
if (!$this->literal("when")) { |
| 3614 |
$this->seek($s); |
| 3615 |
return false; |
| 3616 |
} |
| 3617 |
|
| 3618 |
$guards = array(); |
| 3619 |
|
| 3620 |
while ($this->guardGroup($g)) { |
| 3621 |
$guards[] = $g; |
| 3622 |
if (!$this->literal(",")) break; |
| 3623 |
} |
| 3624 |
|
| 3625 |
if (count($guards) == 0) { |
| 3626 |
$guards = null; |
| 3627 |
$this->seek($s); |
| 3628 |
return false; |
| 3629 |
} |
| 3630 |
|
| 3631 |
return true; |
| 3632 |
} |
| 3633 |
|
| 3634 |
// a bunch of guards that are and'd together |
| 3635 |
// TODO rename to guardGroup |
| 3636 |
protected function guardGroup(&$guardGroup) { |
| 3637 |
$s = $this->seek(); |
| 3638 |
$guardGroup = array(); |
| 3639 |
while ($this->guard($guard)) { |
| 3640 |
$guardGroup[] = $guard; |
| 3641 |
if (!$this->literal("and")) break; |
| 3642 |
} |
| 3643 |
|
| 3644 |
if (count($guardGroup) == 0) { |
| 3645 |
$guardGroup = null; |
| 3646 |
$this->seek($s); |
| 3647 |
return false; |
| 3648 |
} |
| 3649 |
|
| 3650 |
return true; |
| 3651 |
} |
| 3652 |
|
| 3653 |
protected function guard(&$guard) { |
| 3654 |
$s = $this->seek(); |
| 3655 |
$negate = $this->literal("not"); |
| 3656 |
|
| 3657 |
if ($this->literal("(") && $this->expression($exp) && $this->literal(")")) { |
| 3658 |
$guard = $exp; |
| 3659 |
if ($negate) $guard = array("negate", $guard); |
| 3660 |
return true; |
| 3661 |
} |
| 3662 |
|
| 3663 |
$this->seek($s); |
| 3664 |
return false; |
| 3665 |
} |
| 3666 |
|
| 3667 |
/* raw parsing functions */ |
| 3668 |
|
| 3669 |
protected function literal($what, $eatWhitespace = null) { |
| 3670 |
if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault; |
| 3671 |
|
| 3672 |
// shortcut on single letter |
| 3673 |
if (!isset($what[1]) && isset($this->buffer[$this->count])) { |
| 3674 |
if ($this->buffer[$this->count] == $what) { |
| 3675 |
if (!$eatWhitespace) { |
| 3676 |
$this->count++; |
| 3677 |
return true; |
| 3678 |
} |
| 3679 |
// goes below... |
| 3680 |
} else { |
| 3681 |
return false; |
| 3682 |
} |
| 3683 |
} |
| 3684 |
|
| 3685 |
if (!isset(self::$literalCache[$what])) { |
| 3686 |
self::$literalCache[$what] = lessc::preg_quote($what); |
| 3687 |
} |
| 3688 |
|
| 3689 |
return $this->match(self::$literalCache[$what], $m, $eatWhitespace); |
| 3690 |
} |
| 3691 |
|
| 3692 |
protected function genericList(&$out, $parseItem, $delim="", $flatten=true) { |
| 3693 |
$s = $this->seek(); |
| 3694 |
$items = array(); |
| 3695 |
while ($this->$parseItem($value)) { |
| 3696 |
$items[] = $value; |
| 3697 |
if ($delim) { |
| 3698 |
if (!$this->literal($delim)) break; |
| 3699 |
} |
| 3700 |
} |
| 3701 |
|
| 3702 |
if (count($items) == 0) { |
| 3703 |
$this->seek($s); |
| 3704 |
return false; |
| 3705 |
} |
| 3706 |
|
| 3707 |
if ($flatten && count($items) == 1) { |
| 3708 |
$out = $items[0]; |
| 3709 |
} else { |
| 3710 |
$out = array("list", $delim, $items); |
| 3711 |
} |
| 3712 |
|
| 3713 |
return true; |
| 3714 |
} |
| 3715 |
|
| 3716 |
|
| 3717 |
// advance counter to next occurrence of $what |
| 3718 |
// $until - don't include $what in advance |
| 3719 |
// $allowNewline, if string, will be used as valid char set |
| 3720 |
protected function to($what, &$out, $until = false, $allowNewline = false) { |
| 3721 |
if (is_string($allowNewline)) { |
| 3722 |
$validChars = $allowNewline; |
| 3723 |
} else { |
| 3724 |
$validChars = $allowNewline ? "." : "[^\n]"; |
| 3725 |
} |
| 3726 |
if (!$this->match('('.$validChars.'*?)'.lessc::preg_quote($what), $m, !$until)) return false; |
| 3727 |
if ($until) $this->count -= strlen($what); // give back $what |
| 3728 |
$out = $m[1]; |
| 3729 |
return true; |
| 3730 |
} |
| 3731 |
|
| 3732 |
// try to match something on head of buffer |
| 3733 |
protected function match($regex, &$out, $eatWhitespace = null) { |
| 3734 |
if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault; |
| 3735 |
|
| 3736 |
$r = '/'.$regex.($eatWhitespace && !$this->writeComments ? '\s*' : '').'/Ais'; |
| 3737 |
if (preg_match($r, $this->buffer, $out, null, $this->count)) { |
| 3738 |
$this->count += strlen($out[0]); |
| 3739 |
if ($eatWhitespace && $this->writeComments) $this->whitespace(); |
| 3740 |
return true; |
| 3741 |
} |
| 3742 |
return false; |
| 3743 |
} |
| 3744 |
|
| 3745 |
// match some whitespace |
| 3746 |
protected function whitespace() { |
| 3747 |
if ($this->writeComments) { |
| 3748 |
$gotWhite = false; |
| 3749 |
while (preg_match(self::$whitePattern, $this->buffer, $m, null, $this->count)) { |
| 3750 |
if (isset($m[1]) && empty($this->seenComments[$this->count])) { |
| 3751 |
$this->append(array("comment", $m[1])); |
| 3752 |
$this->seenComments[$this->count] = true; |
| 3753 |
} |
| 3754 |
$this->count += strlen($m[0]); |
| 3755 |
$gotWhite = true; |
| 3756 |
} |
| 3757 |
return $gotWhite; |
| 3758 |
} else { |
| 3759 |
$this->match("", $m); |
| 3760 |
return strlen($m[0]) > 0; |
| 3761 |
} |
| 3762 |
} |
| 3763 |
|
| 3764 |
// match something without consuming it |
| 3765 |
protected function peek($regex, &$out = null, $from=null) { |
| 3766 |
if (is_null($from)) $from = $this->count; |
| 3767 |
$r = '/'.$regex.'/Ais'; |
| 3768 |
$result = preg_match($r, $this->buffer, $out, null, $from); |
| 3769 |
|
| 3770 |
return $result; |
| 3771 |
} |
| 3772 |
|
| 3773 |
// seek to a spot in the buffer or return where we are on no argument |
| 3774 |
protected function seek($where = null) { |
| 3775 |
if ($where === null) return $this->count; |
| 3776 |
else $this->count = $where; |
| 3777 |
return true; |
| 3778 |
} |
| 3779 |
|
| 3780 |
/* misc functions */ |
| 3781 |
|
| 3782 |
public function throwError($msg = "parse error", $count = null) { |
| 3783 |
$count = is_null($count) ? $this->count : $count; |
| 3784 |
|
| 3785 |
$line = $this->line + |
| 3786 |
substr_count(substr($this->buffer, 0, $count), "\n"); |
| 3787 |
|
| 3788 |
if (!empty($this->sourceName)) { |
| 3789 |
$loc = "$this->sourceName on line $line"; |
| 3790 |
} else { |
| 3791 |
$loc = "line: $line"; |
| 3792 |
} |
| 3793 |
|
| 3794 |
// TODO this depends on $this->count |
| 3795 |
if ($this->peek("(.*?)(\n|$)", $m, $count)) { |
| 3796 |
throw new \Exception("$msg: failed at `$m[1]` $loc"); |
| 3797 |
} else { |
| 3798 |
throw new \Exception("$msg: $loc"); |
| 3799 |
} |
| 3800 |
} |
| 3801 |
|
| 3802 |
protected function pushBlock($selectors=null, $type=null) { |
| 3803 |
$b = new \stdClass(); |
| 3804 |
$b->parent = $this->env; |
| 3805 |
|
| 3806 |
$b->type = $type; |
| 3807 |
$b->id = self::$nextBlockId++; |
| 3808 |
|
| 3809 |
$b->isVararg = false; // TODO: kill me from here |
| 3810 |
$b->tags = $selectors; |
| 3811 |
|
| 3812 |
$b->props = array(); |
| 3813 |
$b->children = array(); |
| 3814 |
|
| 3815 |
// add a reference to the parser so |
| 3816 |
// we can access the parser to throw errors |
| 3817 |
// or retrieve the sourceName of this block. |
| 3818 |
$b->parser = $this; |
| 3819 |
|
| 3820 |
// so we know the position of this block |
| 3821 |
$b->count = $this->count; |
| 3822 |
|
| 3823 |
$this->env = $b; |
| 3824 |
return $b; |
| 3825 |
} |
| 3826 |
|
| 3827 |
// push a block that doesn't multiply tags |
| 3828 |
protected function pushSpecialBlock($type) { |
| 3829 |
return $this->pushBlock(null, $type); |
| 3830 |
} |
| 3831 |
|
| 3832 |
// append a property to the current block |
| 3833 |
protected function append($prop, $pos = null) { |
| 3834 |
if ($pos !== null) $prop[-1] = $pos; |
| 3835 |
$this->env->props[] = $prop; |
| 3836 |
} |
| 3837 |
|
| 3838 |
// pop something off the stack |
| 3839 |
protected function pop() { |
| 3840 |
$old = $this->env; |
| 3841 |
$this->env = $this->env->parent; |
| 3842 |
return $old; |
| 3843 |
} |
| 3844 |
|
| 3845 |
// remove comments from $text |
| 3846 |
// todo: make it work for all functions, not just url |
| 3847 |
protected function removeComments($text) { |
| 3848 |
$look = array( |
| 3849 |
'url(', '//', '/*', '"', "'" |
| 3850 |
); |
| 3851 |
|
| 3852 |
$out = ''; |
| 3853 |
$min = null; |
| 3854 |
while (true) { |
| 3855 |
// find the next item |
| 3856 |
foreach ($look as $token) { |
| 3857 |
$pos = strpos($text, $token); |
| 3858 |
if ($pos !== false) { |
| 3859 |
if (!isset($min) || $pos < $min[1]) $min = array($token, $pos); |
| 3860 |
} |
| 3861 |
} |
| 3862 |
|
| 3863 |
if (is_null($min)) break; |
| 3864 |
|
| 3865 |
$count = $min[1]; |
| 3866 |
$skip = 0; |
| 3867 |
$newlines = 0; |
| 3868 |
switch ($min[0]) { |
| 3869 |
case 'url(': |
| 3870 |
if (preg_match('/url\(.*?\)/', $text, $m, 0, $count)) |
| 3871 |
$count += strlen($m[0]) - strlen($min[0]); |
| 3872 |
break; |
| 3873 |
case '"': |
| 3874 |
case "'": |
| 3875 |
if (preg_match('/'.$min[0].'.*?(?<!\\\\)'.$min[0].'/', $text, $m, 0, $count)) |
| 3876 |
$count += strlen($m[0]) - 1; |
| 3877 |
break; |
| 3878 |
case '//': |
| 3879 |
$skip = strpos($text, "\n", $count); |
| 3880 |
if ($skip === false) $skip = strlen($text) - $count; |
| 3881 |
else $skip -= $count; |
| 3882 |
break; |
| 3883 |
case '/*': |
| 3884 |
if (preg_match('/\/\*.*?\*\//s', $text, $m, 0, $count)) { |
| 3885 |
$skip = strlen($m[0]); |
| 3886 |
$newlines = substr_count($m[0], "\n"); |
| 3887 |
} |
| 3888 |
break; |
| 3889 |
} |
| 3890 |
|
| 3891 |
if ($skip == 0) $count += strlen($min[0]); |
| 3892 |
|
| 3893 |
$out .= substr($text, 0, $count).str_repeat("\n", $newlines); |
| 3894 |
$text = substr($text, $count + $skip); |
| 3895 |
|
| 3896 |
$min = null; |
| 3897 |
} |
| 3898 |
|
| 3899 |
return $out.$text; |
| 3900 |
} |
| 3901 |
|
| 3902 |
} |
| 3903 |
|
| 3904 |
class lessc_formatter_classic { |
| 3905 |
public $indentChar = " "; |
| 3906 |
|
| 3907 |
public $break = "\n"; |
| 3908 |
public $open = " {"; |
| 3909 |
public $close = "}"; |
| 3910 |
public $selectorSeparator = ", "; |
| 3911 |
public $assignSeparator = ":"; |
| 3912 |
|
| 3913 |
public $openSingle = " { "; |
| 3914 |
public $closeSingle = " }"; |
| 3915 |
|
| 3916 |
public $disableSingle = false; |
| 3917 |
public $breakSelectors = false; |
| 3918 |
|
| 3919 |
public $compressColors = false; |
| 3920 |
|
| 3921 |
public function __construct() { |
| 3922 |
$this->indentLevel = 0; |
| 3923 |
} |
| 3924 |
|
| 3925 |
public function indentStr($n = 0) { |
| 3926 |
return str_repeat($this->indentChar, max($this->indentLevel + $n, 0)); |
| 3927 |
} |
| 3928 |
|
| 3929 |
public function property($name, $value) { |
| 3930 |
return $name . $this->assignSeparator . $value . ";"; |
| 3931 |
} |
| 3932 |
|
| 3933 |
protected function isEmpty($block) { |
| 3934 |
if (empty($block->lines)) { |
| 3935 |
foreach ($block->children as $child) { |
| 3936 |
if (!$this->isEmpty($child)) return false; |
| 3937 |
} |
| 3938 |
|
| 3939 |
return true; |
| 3940 |
} |
| 3941 |
return false; |
| 3942 |
} |
| 3943 |
|
| 3944 |
public function block($block) { |
| 3945 |
if ($this->isEmpty($block)) return; |
| 3946 |
|
| 3947 |
$inner = $pre = $this->indentStr(); |
| 3948 |
|
| 3949 |
$isSingle = !$this->disableSingle && |
| 3950 |
is_null($block->type) && count($block->lines) == 1; |
| 3951 |
|
| 3952 |
if (!empty($block->selectors)) { |
| 3953 |
$this->indentLevel++; |
| 3954 |
|
| 3955 |
if ($this->breakSelectors) { |
| 3956 |
$selectorSeparator = $this->selectorSeparator . $this->break . $pre; |
| 3957 |
} else { |
| 3958 |
$selectorSeparator = $this->selectorSeparator; |
| 3959 |
} |
| 3960 |
|
| 3961 |
echo $pre . |
| 3962 |
implode($selectorSeparator, $block->selectors); |
| 3963 |
if ($isSingle) { |
| 3964 |
echo $this->openSingle; |
| 3965 |
$inner = ""; |
| 3966 |
} else { |
| 3967 |
echo $this->open . $this->break; |
| 3968 |
$inner = $this->indentStr(); |
| 3969 |
} |
| 3970 |
|
| 3971 |
} |
| 3972 |
|
| 3973 |
if (!empty($block->lines)) { |
| 3974 |
$glue = $this->break.$inner; |
| 3975 |
echo $inner . implode($glue, $block->lines); |
| 3976 |
if (!$isSingle && !empty($block->children)) { |
| 3977 |
echo $this->break; |
| 3978 |
} |
| 3979 |
} |
| 3980 |
|
| 3981 |
foreach ($block->children as $child) { |
| 3982 |
$this->block($child); |
| 3983 |
} |
| 3984 |
|
| 3985 |
if (!empty($block->selectors)) { |
| 3986 |
if (!$isSingle && empty($block->children)) echo $this->break; |
| 3987 |
|
| 3988 |
if ($isSingle) { |
| 3989 |
echo $this->closeSingle . $this->break; |
| 3990 |
} else { |
| 3991 |
echo $pre . $this->close . $this->break; |
| 3992 |
} |
| 3993 |
|
| 3994 |
$this->indentLevel--; |
| 3995 |
} |
| 3996 |
} |
| 3997 |
} |
| 3998 |
|
| 3999 |
class lessc_formatter_compressed extends lessc_formatter_classic { |
| 4000 |
public $disableSingle = true; |
| 4001 |
public $open = "{"; |
| 4002 |
public $selectorSeparator = ","; |
| 4003 |
public $assignSeparator = ":"; |
| 4004 |
public $break = ""; |
| 4005 |
public $compressColors = true; |
| 4006 |
|
| 4007 |
public function indentStr($n = 0) { |
| 4008 |
return ""; |
| 4009 |
} |
| 4010 |
} |
| 4011 |
|
| 4012 |
class lessc_formatter_lessjs extends lessc_formatter_classic { |
| 4013 |
public $disableSingle = true; |
| 4014 |
public $breakSelectors = true; |
| 4015 |
public $assignSeparator = ": "; |
| 4016 |
public $selectorSeparator = ","; |
| 4017 |
} |
| 4018 |
|
| 4019 |
|
| 4020 |
|
