| 1 |
<?php |
| 2 |
/** |
| 3 |
* SCSSPHP |
| 4 |
* |
| 5 |
* @copyright 2012-2014 Leaf Corcoran |
| 6 |
* |
| 7 |
* @license http://opensource.org/licenses/gpl-license GPL-3.0 |
| 8 |
* @license http://opensource.org/licenses/MIT MIT |
| 9 |
* |
| 10 |
* @link http://leafo.net/scssphp |
| 11 |
*/ |
| 12 |
|
| 13 |
namespace Leafo\ScssPhp; |
| 14 |
|
| 15 |
use Leafo\ScssPhp\Colors; |
| 16 |
use Leafo\ScssPhp\Parser; |
| 17 |
|
| 18 |
/** |
| 19 |
* The scss compiler and parser. |
| 20 |
* |
| 21 |
* Converting SCSS to CSS is a three stage process. The incoming file is parsed |
| 22 |
* by `Parser` into a syntax tree, then it is compiled into another tree |
| 23 |
* representing the CSS structure by `Compiler`. The CSS tree is fed into a |
| 24 |
* formatter, like `Formatter` which then outputs CSS as a string. |
| 25 |
* |
| 26 |
* During the first compile, all values are *reduced*, which means that their |
| 27 |
* types are brought to the lowest form before being dump as strings. This |
| 28 |
* handles math equations, variable dereferences, and the like. |
| 29 |
* |
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* The `parse` function of `Compiler` is the entry point. |
| 31 |
* |
| 32 |
* In summary: |
| 33 |
* |
| 34 |
* The `Compiler` class creates an instance of the parser, feeds it SCSS code, |
| 35 |
* then transforms the resulting tree to a CSS tree. This class also holds the |
| 36 |
* evaluation context, such as all available mixins and variables at any given |
| 37 |
* time. |
| 38 |
* |
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* The `Parser` class is only concerned with parsing its input. |
| 40 |
* |
| 41 |
* The `Formatter` takes a CSS tree, and dumps it to a formatted string, |
| 42 |
* handling things like indentation. |
| 43 |
*/ |
| 44 |
|
| 45 |
/** |
| 46 |
* SCSS compiler |
| 47 |
* |
| 48 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 49 |
*/ |
| 50 |
class Compiler |
| 51 |
{ |
| 52 |
static public $VERSION = 'v0.1.1'; |
| 53 |
|
| 54 |
static protected $operatorNames = array( |
| 55 |
'+' => 'add', |
| 56 |
'-' => 'sub', |
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'*' => 'mul', |
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'/' => 'div', |
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'%' => 'mod', |
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|
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'==' => 'eq', |
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'!=' => 'neq', |
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'<' => 'lt', |
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'>' => 'gt', |
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|
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'<=' => 'lte', |
| 67 |
'>=' => 'gte', |
| 68 |
); |
| 69 |
|
| 70 |
static protected $namespaces = array( |
| 71 |
'special' => '%', |
| 72 |
'mixin' => '@', |
| 73 |
'function' => '^', |
| 74 |
); |
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|
| 76 |
static protected $unitTable = array( |
| 77 |
'in' => array( |
| 78 |
'in' => 1, |
| 79 |
'pt' => 72, |
| 80 |
'pc' => 6, |
| 81 |
'cm' => 2.54, |
| 82 |
'mm' => 25.4, |
| 83 |
'px' => 96, |
| 84 |
) |
| 85 |
); |
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|
| 87 |
static public $true = array('keyword', 'true'); |
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static public $false = array('keyword', 'false'); |
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static public $null = array('null'); |
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|
| 91 |
static public $defaultValue = array('keyword', ''); |
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static public $selfSelector = array('self'); |
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|
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protected $importPaths = array(''); |
| 95 |
protected $importCache = array(); |
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|
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protected $userFunctions = array(); |
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protected $registeredVars = array(); |
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|
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protected $numberPrecision = 5; |
| 101 |
|
| 102 |
protected $formatter = 'Leafo\ScssPhp\Formatter\Nested'; |
| 103 |
|
| 104 |
/** |
| 105 |
* Compile scss |
| 106 |
* |
| 107 |
* @param string $code |
| 108 |
* @param string $name |
| 109 |
* |
| 110 |
* @return string |
| 111 |
*/ |
| 112 |
public function compile($code, $name = null) |
| 113 |
{ |
| 114 |
$this->indentLevel = -1; |
| 115 |
$this->commentsSeen = array(); |
| 116 |
$this->extends = array(); |
| 117 |
$this->extendsMap = array(); |
| 118 |
$this->parsedFiles = array(); |
| 119 |
$this->env = null; |
| 120 |
$this->scope = null; |
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|
| 122 |
$locale = setlocale(LC_NUMERIC, 0); |
| 123 |
setlocale(LC_NUMERIC, 'C'); |
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|
| 125 |
$this->parser = new Parser($name); |
| 126 |
|
| 127 |
$tree = $this->parser->parse($code); |
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|
| 129 |
$this->formatter = new $this->formatter(); |
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|
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$this->pushEnv($tree); |
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$this->injectVariables($this->registeredVars); |
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$this->compileRoot($tree); |
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$this->popEnv(); |
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|
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$out = $this->formatter->format($this->scope); |
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|
| 138 |
setlocale(LC_NUMERIC, $locale); |
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|
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return $out; |
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} |
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|
| 143 |
protected function isSelfExtend($target, $origin) |
| 144 |
{ |
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foreach ($origin as $sel) { |
| 146 |
if (in_array($target, $sel)) { |
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return true; |
| 148 |
} |
| 149 |
} |
| 150 |
|
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return false; |
| 152 |
} |
| 153 |
|
| 154 |
protected function pushExtends($target, $origin) |
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{ |
| 156 |
if ($this->isSelfExtend($target, $origin)) { |
| 157 |
return; |
| 158 |
} |
| 159 |
|
| 160 |
$i = count($this->extends); |
| 161 |
$this->extends[] = array($target, $origin); |
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|
| 163 |
foreach ($target as $part) { |
| 164 |
if (isset($this->extendsMap[$part])) { |
| 165 |
$this->extendsMap[$part][] = $i; |
| 166 |
} else { |
| 167 |
$this->extendsMap[$part] = array($i); |
| 168 |
} |
| 169 |
} |
| 170 |
} |
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|
| 172 |
protected function makeOutputBlock($type, $selectors = null) |
| 173 |
{ |
| 174 |
$out = new \stdClass; |
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$out->type = $type; |
| 176 |
$out->lines = array(); |
| 177 |
$out->children = array(); |
| 178 |
$out->parent = $this->scope; |
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$out->selectors = $selectors; |
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$out->depth = $this->env->depth; |
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|
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return $out; |
| 183 |
} |
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|
| 185 |
protected function matchExtendsSingle($single, &$outOrigin) |
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{ |
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$counts = array(); |
| 188 |
foreach ($single as $part) { |
| 189 |
if (!is_string($part)) { |
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return false; // hmm |
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} |
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|
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if (isset($this->extendsMap[$part])) { |
| 194 |
foreach ($this->extendsMap[$part] as $idx) { |
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$counts[$idx] = |
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isset($counts[$idx]) ? $counts[$idx] + 1 : 1; |
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} |
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} |
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} |
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|
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$outOrigin = array(); |
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$found = false; |
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|
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foreach ($counts as $idx => $count) { |
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list($target, $origin) = $this->extends[$idx]; |
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|
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// check count |
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if ($count != count($target)) { |
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continue; |
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} |
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|
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// check if target is subset of single |
| 213 |
if (array_diff(array_intersect($single, $target), $target)) { |
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continue; |
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} |
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|
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$rem = array_diff($single, $target); |
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|
| 219 |
foreach ($origin as $j => $new) { |
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// prevent infinite loop when target extends itself |
| 221 |
foreach ($new as $new_selector) { |
| 222 |
if (!array_diff($single, $new_selector)) { |
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continue 2; |
| 224 |
} |
| 225 |
} |
| 226 |
|
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$origin[$j][count($origin[$j]) - 1] = $this->combineSelectorSingle(end($new), $rem); |
| 228 |
} |
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|
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$outOrigin = array_merge($outOrigin, $origin); |
| 231 |
|
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$found = true; |
| 233 |
} |
| 234 |
|
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return $found; |
| 236 |
} |
| 237 |
|
| 238 |
protected function combineSelectorSingle($base, $other) |
| 239 |
{ |
| 240 |
$tag = null; |
| 241 |
$out = array(); |
| 242 |
|
| 243 |
foreach (array($base, $other) as $single) { |
| 244 |
foreach ($single as $part) { |
| 245 |
if (preg_match('/^[^\[.#:]/', $part)) { |
| 246 |
$tag = $part; |
| 247 |
} else { |
| 248 |
$out[] = $part; |
| 249 |
} |
| 250 |
} |
| 251 |
} |
| 252 |
|
| 253 |
if ($tag) { |
| 254 |
array_unshift($out, $tag); |
| 255 |
} |
| 256 |
|
| 257 |
return $out; |
| 258 |
} |
| 259 |
|
| 260 |
protected function matchExtends($selector, &$out, $from = 0, $initial = true) |
| 261 |
{ |
| 262 |
foreach ($selector as $i => $part) { |
| 263 |
if ($i < $from) { |
| 264 |
continue; |
| 265 |
} |
| 266 |
|
| 267 |
if ($this->matchExtendsSingle($part, $origin)) { |
| 268 |
$before = array_slice($selector, 0, $i); |
| 269 |
$after = array_slice($selector, $i + 1); |
| 270 |
|
| 271 |
foreach ($origin as $new) { |
| 272 |
$k = 0; |
| 273 |
|
| 274 |
// remove shared parts |
| 275 |
if ($initial) { |
| 276 |
foreach ($before as $k => $val) { |
| 277 |
if (!isset($new[$k]) || $val != $new[$k]) { |
| 278 |
break; |
| 279 |
} |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
$result = array_merge( |
| 284 |
$before, |
| 285 |
$k > 0 ? array_slice($new, $k) : $new, |
| 286 |
$after |
| 287 |
); |
| 288 |
|
| 289 |
if ($result == $selector) { |
| 290 |
continue; |
| 291 |
} |
| 292 |
|
| 293 |
$out[] = $result; |
| 294 |
|
| 295 |
// recursively check for more matches |
| 296 |
$this->matchExtends($result, $out, $i, false); |
| 297 |
|
| 298 |
// selector sequence merging |
| 299 |
if (!empty($before) && count($new) > 1) { |
| 300 |
$result2 = array_merge( |
| 301 |
array_slice($new, 0, -1), |
| 302 |
$k > 0 ? array_slice($before, $k) : $before, |
| 303 |
array_slice($new, -1), |
| 304 |
$after |
| 305 |
); |
| 306 |
|
| 307 |
$out[] = $result2; |
| 308 |
} |
| 309 |
} |
| 310 |
} |
| 311 |
} |
| 312 |
} |
| 313 |
|
| 314 |
protected function flattenSelectors($block, $parentKey = null) |
| 315 |
{ |
| 316 |
if ($block->selectors) { |
| 317 |
$selectors = array(); |
| 318 |
|
| 319 |
foreach ($block->selectors as $s) { |
| 320 |
$selectors[] = $s; |
| 321 |
|
| 322 |
if (!is_array($s)) { |
| 323 |
continue; |
| 324 |
} |
| 325 |
|
| 326 |
// check extends |
| 327 |
if (!empty($this->extendsMap)) { |
| 328 |
$this->matchExtends($s, $selectors); |
| 329 |
} |
| 330 |
} |
| 331 |
|
| 332 |
$block->selectors = array(); |
| 333 |
$placeholderSelector = false; |
| 334 |
|
| 335 |
foreach ($selectors as $selector) { |
| 336 |
if ($this->hasSelectorPlaceholder($selector)) { |
| 337 |
$placeholderSelector = true; |
| 338 |
continue; |
| 339 |
} |
| 340 |
|
| 341 |
$block->selectors[] = $this->compileSelector($selector); |
| 342 |
} |
| 343 |
|
| 344 |
if ($placeholderSelector && 0 == count($block->selectors) && null !== $parentKey) { |
| 345 |
unset($block->parent->children[$parentKey]); |
| 346 |
|
| 347 |
return; |
| 348 |
} |
| 349 |
} |
| 350 |
|
| 351 |
foreach ($block->children as $key => $child) { |
| 352 |
$this->flattenSelectors($child, $key); |
| 353 |
} |
| 354 |
} |
| 355 |
|
| 356 |
protected function compileRoot($rootBlock) |
| 357 |
{ |
| 358 |
$this->scope = $this->makeOutputBlock('root'); |
| 359 |
|
| 360 |
$this->compileChildren($rootBlock->children, $this->scope); |
| 361 |
$this->flattenSelectors($this->scope); |
| 362 |
} |
| 363 |
|
| 364 |
protected function compileMedia($media) |
| 365 |
{ |
| 366 |
$this->pushEnv($media); |
| 367 |
|
| 368 |
$mediaQuery = $this->compileMediaQuery($this->multiplyMedia($this->env)); |
| 369 |
|
| 370 |
if (!empty($mediaQuery)) { |
| 371 |
$this->scope = $this->makeOutputBlock('media', array($mediaQuery)); |
| 372 |
|
| 373 |
$parentScope = $this->mediaParent($this->scope); |
| 374 |
$parentScope->children[] = $this->scope; |
| 375 |
|
| 376 |
// top level properties in a media cause it to be wrapped |
| 377 |
$needsWrap = false; |
| 378 |
|
| 379 |
foreach ($media->children as $child) { |
| 380 |
$type = $child[0]; |
| 381 |
if ($type !== 'block' && $type !== 'media' && $type !== 'directive') { |
| 382 |
$needsWrap = true; |
| 383 |
break; |
| 384 |
} |
| 385 |
} |
| 386 |
|
| 387 |
if ($needsWrap) { |
| 388 |
$wrapped = (object)array( |
| 389 |
'selectors' => array(), |
| 390 |
'children' => $media->children |
| 391 |
); |
| 392 |
$media->children = array(array('block', $wrapped)); |
| 393 |
} |
| 394 |
|
| 395 |
$this->compileChildren($media->children, $this->scope); |
| 396 |
|
| 397 |
$this->scope = $this->scope->parent; |
| 398 |
} |
| 399 |
|
| 400 |
$this->popEnv(); |
| 401 |
} |
| 402 |
|
| 403 |
protected function mediaParent($scope) |
| 404 |
{ |
| 405 |
while (!empty($scope->parent)) { |
| 406 |
if (!empty($scope->type) && $scope->type != 'media') { |
| 407 |
break; |
| 408 |
} |
| 409 |
$scope = $scope->parent; |
| 410 |
} |
| 411 |
|
| 412 |
return $scope; |
| 413 |
} |
| 414 |
|
| 415 |
// TODO refactor compileNestedBlock and compileMedia into same thing |
| 416 |
protected function compileNestedBlock($block, $selectors) |
| 417 |
{ |
| 418 |
$this->pushEnv($block); |
| 419 |
|
| 420 |
$this->scope = $this->makeOutputBlock($block->type, $selectors); |
| 421 |
$this->scope->parent->children[] = $this->scope; |
| 422 |
$this->compileChildren($block->children, $this->scope); |
| 423 |
|
| 424 |
$this->scope = $this->scope->parent; |
| 425 |
$this->popEnv(); |
| 426 |
} |
| 427 |
|
| 428 |
/** |
| 429 |
* Recursively compiles a block. |
| 430 |
* |
| 431 |
* A block is analogous to a CSS block in most cases. A single SCSS document |
| 432 |
* is encapsulated in a block when parsed, but it does not have parent tags |
| 433 |
* so all of its children appear on the root level when compiled. |
| 434 |
* |
| 435 |
* Blocks are made up of selectors and children. |
| 436 |
* |
| 437 |
* The children of a block are just all the blocks that are defined within. |
| 438 |
* |
| 439 |
* Compiling the block involves pushing a fresh environment on the stack, |
| 440 |
* and iterating through the props, compiling each one. |
| 441 |
* |
| 442 |
* @see Compiler::compileChild() |
| 443 |
* |
| 444 |
* @param \StdClass $block |
| 445 |
*/ |
| 446 |
protected function compileBlock($block) |
| 447 |
{ |
| 448 |
$env = $this->pushEnv($block); |
| 449 |
|
| 450 |
$env->selectors = |
| 451 |
array_map(array($this, 'evalSelector'), $block->selectors); |
| 452 |
|
| 453 |
$out = $this->makeOutputBlock(null, $this->multiplySelectors($env)); |
| 454 |
$this->scope->children[] = $out; |
| 455 |
$this->compileChildren($block->children, $out); |
| 456 |
|
| 457 |
$this->popEnv(); |
| 458 |
} |
| 459 |
|
| 460 |
// root level comment |
| 461 |
protected function compileComment($block) |
| 462 |
{ |
| 463 |
$out = $this->makeOutputBlock('comment'); |
| 464 |
$out->lines[] = $block[1]; |
| 465 |
$this->scope->children[] = $out; |
| 466 |
} |
| 467 |
|
| 468 |
// joins together .classes and #ids |
| 469 |
protected function flattenSelectorSingle($single) |
| 470 |
{ |
| 471 |
$joined = array(); |
| 472 |
foreach ($single as $part) { |
| 473 |
if (empty($joined) || |
| 474 |
!is_string($part) || |
| 475 |
preg_match('/[\[.:#%]/', $part) |
| 476 |
) { |
| 477 |
$joined[] = $part; |
| 478 |
continue; |
| 479 |
} |
| 480 |
|
| 481 |
if (is_array(end($joined))) { |
| 482 |
$joined[] = $part; |
| 483 |
} else { |
| 484 |
$joined[count($joined) - 1] .= $part; |
| 485 |
} |
| 486 |
} |
| 487 |
|
| 488 |
return $joined; |
| 489 |
} |
| 490 |
|
| 491 |
// replaces all the interpolates |
| 492 |
protected function evalSelector($selector) |
| 493 |
{ |
| 494 |
return array_map(array($this, 'evalSelectorPart'), $selector); |
| 495 |
} |
| 496 |
|
| 497 |
protected function evalSelectorPart($piece) |
| 498 |
{ |
| 499 |
foreach ($piece as &$p) { |
| 500 |
if (!is_array($p)) { |
| 501 |
continue; |
| 502 |
} |
| 503 |
|
| 504 |
switch ($p[0]) { |
| 505 |
case 'interpolate': |
| 506 |
$p = $this->compileValue($p); |
| 507 |
break; |
| 508 |
case 'string': |
| 509 |
$p = $this->compileValue($p); |
| 510 |
break; |
| 511 |
} |
| 512 |
} |
| 513 |
|
| 514 |
return $this->flattenSelectorSingle($piece); |
| 515 |
} |
| 516 |
|
| 517 |
// compiles to string |
| 518 |
// self(&) should have been replaced by now |
| 519 |
protected function compileSelector($selector) |
| 520 |
{ |
| 521 |
if (!is_array($selector)) { |
| 522 |
return $selector; // media and the like |
| 523 |
} |
| 524 |
|
| 525 |
return implode( |
| 526 |
' ', |
| 527 |
array_map( |
| 528 |
array($this, 'compileSelectorPart'), |
| 529 |
$selector |
| 530 |
) |
| 531 |
); |
| 532 |
} |
| 533 |
|
| 534 |
protected function compileSelectorPart($piece) |
| 535 |
{ |
| 536 |
foreach ($piece as &$p) { |
| 537 |
if (!is_array($p)) { |
| 538 |
continue; |
| 539 |
} |
| 540 |
|
| 541 |
switch ($p[0]) { |
| 542 |
case 'self': |
| 543 |
$p = '&'; |
| 544 |
break; |
| 545 |
default: |
| 546 |
$p = $this->compileValue($p); |
| 547 |
break; |
| 548 |
} |
| 549 |
} |
| 550 |
|
| 551 |
return implode($piece); |
| 552 |
} |
| 553 |
|
| 554 |
protected function hasSelectorPlaceholder($selector) |
| 555 |
{ |
| 556 |
if (!is_array($selector)) { |
| 557 |
return false; |
| 558 |
} |
| 559 |
|
| 560 |
foreach ($selector as $parts) { |
| 561 |
foreach ($parts as $part) { |
| 562 |
if ('%' == $part[0]) { |
| 563 |
return true; |
| 564 |
} |
| 565 |
} |
| 566 |
} |
| 567 |
|
| 568 |
return false; |
| 569 |
} |
| 570 |
|
| 571 |
protected function compileChildren($stms, $out) |
| 572 |
{ |
| 573 |
foreach ($stms as $stm) { |
| 574 |
$ret = $this->compileChild($stm, $out); |
| 575 |
|
| 576 |
if (isset($ret)) { |
| 577 |
return $ret; |
| 578 |
} |
| 579 |
} |
| 580 |
} |
| 581 |
|
| 582 |
protected function compileMediaQuery($queryList) |
| 583 |
{ |
| 584 |
$out = '@media'; |
| 585 |
$first = true; |
| 586 |
|
| 587 |
foreach ($queryList as $query) { |
| 588 |
$type = null; |
| 589 |
$parts = array(); |
| 590 |
|
| 591 |
foreach ($query as $q) { |
| 592 |
switch ($q[0]) { |
| 593 |
case 'mediaType': |
| 594 |
if ($type) { |
| 595 |
$type = $this->mergeMediaTypes( |
| 596 |
$type, |
| 597 |
array_map(array($this, 'compileValue'), array_slice($q, 1)) |
| 598 |
); |
| 599 |
|
| 600 |
if (empty($type)) { // merge failed |
| 601 |
return null; |
| 602 |
} |
| 603 |
} else { |
| 604 |
$type = array_map(array($this, 'compileValue'), array_slice($q, 1)); |
| 605 |
} |
| 606 |
break; |
| 607 |
case 'mediaExp': |
| 608 |
if (isset($q[2])) { |
| 609 |
$parts[] = '(' |
| 610 |
. $this->compileValue($q[1]) |
| 611 |
. $this->formatter->assignSeparator |
| 612 |
. $this->compileValue($q[2]) |
| 613 |
. ')'; |
| 614 |
} else { |
| 615 |
$parts[] = '(' |
| 616 |
. $this->compileValue($q[1]) |
| 617 |
. ')'; |
| 618 |
} |
| 619 |
break; |
| 620 |
} |
| 621 |
} |
| 622 |
|
| 623 |
if ($type) { |
| 624 |
array_unshift($parts, implode(' ', array_filter($type))); |
| 625 |
} |
| 626 |
|
| 627 |
if (!empty($parts)) { |
| 628 |
if ($first) { |
| 629 |
$first = false; |
| 630 |
$out .= ' '; |
| 631 |
} else { |
| 632 |
$out .= $this->formatter->tagSeparator; |
| 633 |
} |
| 634 |
|
| 635 |
$out .= implode(' and ', $parts); |
| 636 |
} |
| 637 |
} |
| 638 |
|
| 639 |
return $out; |
| 640 |
} |
| 641 |
|
| 642 |
protected function mergeMediaTypes($type1, $type2) |
| 643 |
{ |
| 644 |
if (empty($type1)) { |
| 645 |
return $type2; |
| 646 |
} |
| 647 |
|
| 648 |
if (empty($type2)) { |
| 649 |
return $type1; |
| 650 |
} |
| 651 |
|
| 652 |
$m1 = ''; |
| 653 |
$t1 = ''; |
| 654 |
|
| 655 |
if (count($type1) > 1) { |
| 656 |
$m1= strtolower($type1[0]); |
| 657 |
$t1= strtolower($type1[1]); |
| 658 |
} else { |
| 659 |
$t1 = strtolower($type1[0]); |
| 660 |
} |
| 661 |
|
| 662 |
$m2 = ''; |
| 663 |
$t2 = ''; |
| 664 |
|
| 665 |
if (count($type2) > 1) { |
| 666 |
$m2 = strtolower($type2[0]); |
| 667 |
$t2 = strtolower($type2[1]); |
| 668 |
} else { |
| 669 |
$t2 = strtolower($type2[0]); |
| 670 |
} |
| 671 |
|
| 672 |
if (($m1 == 'not') ^ ($m2 == 'not')) { |
| 673 |
if ($t1 == $t2) { |
| 674 |
return null; |
| 675 |
} |
| 676 |
|
| 677 |
return array( |
| 678 |
$m1 == 'not' ? $m2 : $m1, |
| 679 |
$m1 == 'not' ? $t2 : $t1 |
| 680 |
); |
| 681 |
} |
| 682 |
|
| 683 |
if ($m1 == 'not' && $m2 == 'not') { |
| 684 |
# CSS has no way of representing "neither screen nor print" |
| 685 |
if ($t1 != $t2) { |
| 686 |
return null; |
| 687 |
} |
| 688 |
|
| 689 |
return array('not', $t1); |
| 690 |
} |
| 691 |
|
| 692 |
if ($t1 != $t2) { |
| 693 |
return null; |
| 694 |
} |
| 695 |
|
| 696 |
// t1 == t2, neither m1 nor m2 are "not" |
| 697 |
return array(empty($m1)? $m2 : $m1, $t1); |
| 698 |
} |
| 699 |
|
| 700 |
// returns true if the value was something that could be imported |
| 701 |
protected function compileImport($rawPath, $out) |
| 702 |
{ |
| 703 |
if ($rawPath[0] == 'string') { |
| 704 |
$path = $this->compileStringContent($rawPath); |
| 705 |
|
| 706 |
if ($path = $this->findImport($path)) { |
| 707 |
$this->importFile($path, $out); |
| 708 |
|
| 709 |
return true; |
| 710 |
} |
| 711 |
|
| 712 |
return false; |
| 713 |
} |
| 714 |
if ($rawPath[0] == 'list') { |
| 715 |
// handle a list of strings |
| 716 |
if (count($rawPath[2]) == 0) { |
| 717 |
return false; |
| 718 |
} |
| 719 |
|
| 720 |
foreach ($rawPath[2] as $path) { |
| 721 |
if ($path[0] != 'string') { |
| 722 |
return false; |
| 723 |
} |
| 724 |
} |
| 725 |
|
| 726 |
foreach ($rawPath[2] as $path) { |
| 727 |
$this->compileImport($path, $out); |
| 728 |
} |
| 729 |
|
| 730 |
return true; |
| 731 |
} |
| 732 |
|
| 733 |
return false; |
| 734 |
} |
| 735 |
|
| 736 |
// return a value to halt execution |
| 737 |
protected function compileChild($child, $out) |
| 738 |
{ |
| 739 |
$this->sourcePos = isset($child[-1]) ? $child[-1] : -1; |
| 740 |
$this->sourceParser = isset($child[-2]) ? $child[-2] : $this->parser; |
| 741 |
|
| 742 |
switch ($child[0]) { |
| 743 |
case 'import': |
| 744 |
list(,$rawPath) = $child; |
| 745 |
|
| 746 |
$rawPath = $this->reduce($rawPath); |
| 747 |
if (!$this->compileImport($rawPath, $out)) { |
| 748 |
$out->lines[] = '@import ' . $this->compileValue($rawPath) . ';'; |
| 749 |
} |
| 750 |
break; |
| 751 |
case 'directive': |
| 752 |
list(, $directive) = $child; |
| 753 |
|
| 754 |
$s = '@' . $directive->name; |
| 755 |
if (!empty($directive->value)) { |
| 756 |
$s .= ' ' . $this->compileValue($directive->value); |
| 757 |
} |
| 758 |
$this->compileNestedBlock($directive, array($s)); |
| 759 |
break; |
| 760 |
case 'media': |
| 761 |
$this->compileMedia($child[1]); |
| 762 |
break; |
| 763 |
case 'block': |
| 764 |
$this->compileBlock($child[1]); |
| 765 |
break; |
| 766 |
case 'charset': |
| 767 |
$out->lines[] = '@charset '.$this->compileValue($child[1]).';'; |
| 768 |
break; |
| 769 |
case 'assign': |
| 770 |
list(,$name, $value) = $child; |
| 771 |
|
| 772 |
if ($name[0] == 'var') { |
| 773 |
$isDefault = !empty($child[3]); |
| 774 |
|
| 775 |
if ($isDefault) { |
| 776 |
$existingValue = $this->get($name[1], true); |
| 777 |
$shouldSet = $existingValue === true || $existingValue == self::$null; |
| 778 |
} |
| 779 |
|
| 780 |
if (! $isDefault || $shouldSet) { |
| 781 |
$this->set($name[1], $this->reduce($value)); |
| 782 |
} |
| 783 |
break; |
| 784 |
} |
| 785 |
|
| 786 |
// if the value reduces to null from something else then |
| 787 |
// the property should be discarded |
| 788 |
if ($value[0] != 'null') { |
| 789 |
$value = $this->reduce($value); |
| 790 |
if ($value[0] == 'null') { |
| 791 |
break; |
| 792 |
} |
| 793 |
} |
| 794 |
|
| 795 |
$compiledValue = $this->compileValue($value); |
| 796 |
$out->lines[] = $this->formatter->property( |
| 797 |
$this->compileValue($name), |
| 798 |
$compiledValue |
| 799 |
); |
| 800 |
break; |
| 801 |
case 'comment': |
| 802 |
if ($out->type == 'root') { |
| 803 |
$this->compileComment($child); |
| 804 |
break; |
| 805 |
} |
| 806 |
|
| 807 |
$out->lines[] = $child[1]; |
| 808 |
break; |
| 809 |
case 'mixin': |
| 810 |
case 'function': |
| 811 |
list(,$block) = $child; |
| 812 |
|
| 813 |
$this->set(self::$namespaces[$block->type] . $block->name, $block); |
| 814 |
break; |
| 815 |
case 'extend': |
| 816 |
list(, $selectors) = $child; |
| 817 |
|
| 818 |
foreach ($selectors as $sel) { |
| 819 |
// only use the first one |
| 820 |
$sel = current($this->evalSelector($sel)); |
| 821 |
$this->pushExtends($sel, $out->selectors); |
| 822 |
} |
| 823 |
break; |
| 824 |
case 'if': |
| 825 |
list(, $if) = $child; |
| 826 |
|
| 827 |
if ($this->isTruthy($this->reduce($if->cond, true))) { |
| 828 |
return $this->compileChildren($if->children, $out); |
| 829 |
} else { |
| 830 |
foreach ($if->cases as $case) { |
| 831 |
if ($case->type == 'else' || |
| 832 |
$case->type == 'elseif' && $this->isTruthy($this->reduce($case->cond)) |
| 833 |
) { |
| 834 |
return $this->compileChildren($case->children, $out); |
| 835 |
} |
| 836 |
} |
| 837 |
} |
| 838 |
break; |
| 839 |
case 'return': |
| 840 |
return $this->reduce($child[1], true); |
| 841 |
case 'each': |
| 842 |
list(,$each) = $child; |
| 843 |
|
| 844 |
$list = $this->coerceList($this->reduce($each->list)); |
| 845 |
foreach ($list[2] as $item) { |
| 846 |
$this->pushEnv(); |
| 847 |
$this->set($each->var, $item); |
| 848 |
// TODO: allow return from here |
| 849 |
$this->compileChildren($each->children, $out); |
| 850 |
$this->popEnv(); |
| 851 |
} |
| 852 |
break; |
| 853 |
case 'while': |
| 854 |
list(,$while) = $child; |
| 855 |
|
| 856 |
while ($this->isTruthy($this->reduce($while->cond, true))) { |
| 857 |
$ret = $this->compileChildren($while->children, $out); |
| 858 |
if ($ret) { |
| 859 |
return $ret; |
| 860 |
} |
| 861 |
} |
| 862 |
break; |
| 863 |
case 'for': |
| 864 |
list(,$for) = $child; |
| 865 |
|
| 866 |
$start = $this->reduce($for->start, true); |
| 867 |
$start = $start[1]; |
| 868 |
$end = $this->reduce($for->end, true); |
| 869 |
$end = $end[1]; |
| 870 |
$d = $start < $end ? 1 : -1; |
| 871 |
|
| 872 |
while (true) { |
| 873 |
if ((! $for->until && $start - $d == $end) || |
| 874 |
($for->until && $start == $end) |
| 875 |
) { |
| 876 |
break; |
| 877 |
} |
| 878 |
|
| 879 |
$this->set($for->var, array('number', $start, '')); |
| 880 |
$start += $d; |
| 881 |
|
| 882 |
$ret = $this->compileChildren($for->children, $out); |
| 883 |
|
| 884 |
if ($ret) { |
| 885 |
return $ret; |
| 886 |
} |
| 887 |
} |
| 888 |
|
| 889 |
break; |
| 890 |
case 'nestedprop': |
| 891 |
list(,$prop) = $child; |
| 892 |
|
| 893 |
$prefixed = array(); |
| 894 |
$prefix = $this->compileValue($prop->prefix) . '-'; |
| 895 |
|
| 896 |
foreach ($prop->children as $child) { |
| 897 |
if ($child[0] == 'assign') { |
| 898 |
array_unshift($child[1][2], $prefix); |
| 899 |
} |
| 900 |
|
| 901 |
if ($child[0] == 'nestedprop') { |
| 902 |
array_unshift($child[1]->prefix[2], $prefix); |
| 903 |
} |
| 904 |
|
| 905 |
$prefixed[] = $child; |
| 906 |
} |
| 907 |
|
| 908 |
$this->compileChildren($prefixed, $out); |
| 909 |
break; |
| 910 |
case 'include': // including a mixin |
| 911 |
list(,$name, $argValues, $content) = $child; |
| 912 |
|
| 913 |
$mixin = $this->get(self::$namespaces['mixin'] . $name, false); |
| 914 |
|
| 915 |
if (! $mixin) { |
| 916 |
$this->throwError("Undefined mixin $name"); |
| 917 |
} |
| 918 |
|
| 919 |
$callingScope = $this->env; |
| 920 |
|
| 921 |
// push scope, apply args |
| 922 |
$this->pushEnv(); |
| 923 |
|
| 924 |
if ($this->env->depth > 0) { |
| 925 |
$this->env->depth--; |
| 926 |
} |
| 927 |
|
| 928 |
if (isset($content)) { |
| 929 |
$content->scope = $callingScope; |
| 930 |
$this->setRaw(self::$namespaces['special'] . 'content', $content); |
| 931 |
} |
| 932 |
|
| 933 |
if (isset($mixin->args)) { |
| 934 |
$this->applyArguments($mixin->args, $argValues); |
| 935 |
} |
| 936 |
|
| 937 |
foreach ($mixin->children as $child) { |
| 938 |
$this->compileChild($child, $out); |
| 939 |
} |
| 940 |
|
| 941 |
$this->popEnv(); |
| 942 |
break; |
| 943 |
case 'mixin_content': |
| 944 |
$content = $this->get(self::$namespaces['special'] . 'content'); |
| 945 |
|
| 946 |
if (!isset($content)) { |
| 947 |
$this->throwError('Expected @content inside of mixin'); |
| 948 |
} |
| 949 |
|
| 950 |
$strongTypes = array('include', 'block', 'for', 'while'); |
| 951 |
|
| 952 |
foreach ($content->children as $child) { |
| 953 |
$this->storeEnv = (in_array($child[0], $strongTypes)) |
| 954 |
? null |
| 955 |
: $content->scope; |
| 956 |
|
| 957 |
$this->compileChild($child, $out); |
| 958 |
} |
| 959 |
|
| 960 |
unset($this->storeEnv); |
| 961 |
break; |
| 962 |
case 'debug': |
| 963 |
list(,$value, $pos) = $child; |
| 964 |
|
| 965 |
$line = $this->parser->getLineNo($pos); |
| 966 |
$value = $this->compileValue($this->reduce($value, true)); |
| 967 |
fwrite(STDERR, "Line $line DEBUG: $value\n"); |
| 968 |
break; |
| 969 |
default: |
| 970 |
$this->throwError("unknown child type: $child[0]"); |
| 971 |
} |
| 972 |
} |
| 973 |
|
| 974 |
protected function expToString($exp) |
| 975 |
{ |
| 976 |
list(, $op, $left, $right, $inParens, $whiteLeft, $whiteRight) = $exp; |
| 977 |
|
| 978 |
$content = array($this->reduce($left)); |
| 979 |
|
| 980 |
if ($whiteLeft) { |
| 981 |
$content[] = ' '; |
| 982 |
} |
| 983 |
|
| 984 |
$content[] = $op; |
| 985 |
|
| 986 |
if ($whiteRight) { |
| 987 |
$content[] = ' '; |
| 988 |
} |
| 989 |
|
| 990 |
$content[] = $this->reduce($right); |
| 991 |
|
| 992 |
return array('string', '', $content); |
| 993 |
} |
| 994 |
|
| 995 |
protected function isTruthy($value) |
| 996 |
{ |
| 997 |
return $value != self::$false && $value != self::$null; |
| 998 |
} |
| 999 |
|
| 1000 |
// should $value cause its operand to eval |
| 1001 |
protected function shouldEval($value) |
| 1002 |
{ |
| 1003 |
switch ($value[0]) { |
| 1004 |
case 'exp': |
| 1005 |
if ($value[1] == '/') { |
| 1006 |
return $this->shouldEval($value[2], $value[3]); |
| 1007 |
} |
| 1008 |
|
| 1009 |
// fall-thru |
| 1010 |
case 'var': |
| 1011 |
case 'fncall': |
| 1012 |
return true; |
| 1013 |
} |
| 1014 |
return false; |
| 1015 |
} |
| 1016 |
|
| 1017 |
protected function reduce($value, $inExp = false) |
| 1018 |
{ |
| 1019 |
list($type) = $value; |
| 1020 |
switch ($type) { |
| 1021 |
case 'exp': |
| 1022 |
list(, $op, $left, $right, $inParens) = $value; |
| 1023 |
|
| 1024 |
$opName = isset(self::$operatorNames[$op]) ? self::$operatorNames[$op] : $op; |
| 1025 |
$inExp = $inExp || $this->shouldEval($left) || $this->shouldEval($right); |
| 1026 |
|
| 1027 |
$left = $this->reduce($left, true); |
| 1028 |
$right = $this->reduce($right, true); |
| 1029 |
|
| 1030 |
// only do division in special cases |
| 1031 |
if ($opName == 'div' && !$inParens && !$inExp) { |
| 1032 |
if ($left[0] != 'color' && $right[0] != 'color') { |
| 1033 |
return $this->expToString($value); |
| 1034 |
} |
| 1035 |
} |
| 1036 |
|
| 1037 |
$left = $this->coerceForExpression($left); |
| 1038 |
$right = $this->coerceForExpression($right); |
| 1039 |
|
| 1040 |
$ltype = $left[0]; |
| 1041 |
$rtype = $right[0]; |
| 1042 |
|
| 1043 |
$ucOpName = ucfirst($opName); |
| 1044 |
$ucLType = ucfirst($ltype); |
| 1045 |
$ucRType = ucfirst($rtype); |
| 1046 |
|
| 1047 |
// this tries: |
| 1048 |
// 1. op[op name][left type][right type] |
| 1049 |
// 2. op[left type][right type] (passing the op as first arg |
| 1050 |
// 3. op[op name] |
| 1051 |
$fn = "op${ucOpName}${ucLType}${ucRType}"; |
| 1052 |
if (is_callable(array($this, $fn)) || |
| 1053 |
(($fn = "op${ucLType}${ucRType}") && |
| 1054 |
is_callable(array($this, $fn)) && |
| 1055 |
$passOp = true) || |
| 1056 |
(($fn = "op${ucOpName}") && |
| 1057 |
is_callable(array($this, $fn)) && |
| 1058 |
$genOp = true) |
| 1059 |
) { |
| 1060 |
$unitChange = false; |
| 1061 |
|
| 1062 |
if (!isset($genOp) && |
| 1063 |
$left[0] == 'number' && $right[0] == 'number' |
| 1064 |
) { |
| 1065 |
if ($opName == 'mod' && $right[2] != '') { |
| 1066 |
$this->throwError("Cannot modulo by a number with units: $right[1]$right[2]."); |
| 1067 |
} |
| 1068 |
|
| 1069 |
$unitChange = true; |
| 1070 |
$emptyUnit = $left[2] == '' || $right[2] == ''; |
| 1071 |
$targetUnit = '' != $left[2] ? $left[2] : $right[2]; |
| 1072 |
|
| 1073 |
if ($opName != 'mul') { |
| 1074 |
$left[2] = '' != $left[2] ? $left[2] : $targetUnit; |
| 1075 |
$right[2] = '' != $right[2] ? $right[2] : $targetUnit; |
| 1076 |
} |
| 1077 |
|
| 1078 |
if ($opName != 'mod') { |
| 1079 |
$left = $this->normalizeNumber($left); |
| 1080 |
$right = $this->normalizeNumber($right); |
| 1081 |
} |
| 1082 |
|
| 1083 |
if ($opName == 'div' && !$emptyUnit && $left[2] == $right[2]) { |
| 1084 |
$targetUnit = ''; |
| 1085 |
} |
| 1086 |
|
| 1087 |
if ($opName == 'mul') { |
| 1088 |
$left[2] = '' != $left[2] ? $left[2] : $right[2]; |
| 1089 |
$right[2] = '' != $right[2] ? $right[2] : $left[2]; |
| 1090 |
} elseif ($opName == 'div' && $left[2] == $right[2]) { |
| 1091 |
$left[2] = ''; |
| 1092 |
$right[2] = ''; |
| 1093 |
} |
| 1094 |
} |
| 1095 |
|
| 1096 |
$shouldEval = $inParens || $inExp; |
| 1097 |
|
| 1098 |
if (isset($passOp)) { |
| 1099 |
$out = $this->$fn($op, $left, $right, $shouldEval); |
| 1100 |
} else { |
| 1101 |
$out = $this->$fn($left, $right, $shouldEval); |
| 1102 |
} |
| 1103 |
|
| 1104 |
if (isset($out)) { |
| 1105 |
if ($unitChange && $out[0] == 'number') { |
| 1106 |
$out = $this->coerceUnit($out, $targetUnit); |
| 1107 |
} |
| 1108 |
|
| 1109 |
return $out; |
| 1110 |
} |
| 1111 |
} |
| 1112 |
|
| 1113 |
return $this->expToString($value); |
| 1114 |
case 'unary': |
| 1115 |
list(, $op, $exp, $inParens) = $value; |
| 1116 |
|
| 1117 |
$inExp = $inExp || $this->shouldEval($exp); |
| 1118 |
$exp = $this->reduce($exp); |
| 1119 |
|
| 1120 |
if ($exp[0] == 'number') { |
| 1121 |
switch ($op) { |
| 1122 |
case '+': |
| 1123 |
return $exp; |
| 1124 |
case '-': |
| 1125 |
$exp[1] *= -1; |
| 1126 |
|
| 1127 |
return $exp; |
| 1128 |
} |
| 1129 |
} |
| 1130 |
|
| 1131 |
if ($op == 'not') { |
| 1132 |
if ($inExp || $inParens) { |
| 1133 |
if ($exp == self::$false) { |
| 1134 |
return self::$true; |
| 1135 |
} |
| 1136 |
|
| 1137 |
return self::$false; |
| 1138 |
} else { |
| 1139 |
$op = $op . ' '; |
| 1140 |
} |
| 1141 |
} |
| 1142 |
|
| 1143 |
return array('string', '', array($op, $exp)); |
| 1144 |
case 'var': |
| 1145 |
list(, $name) = $value; |
| 1146 |
|
| 1147 |
return $this->reduce($this->get($name)); |
| 1148 |
case 'list': |
| 1149 |
foreach ($value[2] as &$item) { |
| 1150 |
$item = $this->reduce($item); |
| 1151 |
} |
| 1152 |
|
| 1153 |
return $value; |
| 1154 |
case 'string': |
| 1155 |
foreach ($value[2] as &$item) { |
| 1156 |
if (is_array($item)) { |
| 1157 |
$item = $this->reduce($item); |
| 1158 |
} |
| 1159 |
} |
| 1160 |
return $value; |
| 1161 |
case 'interpolate': |
| 1162 |
$value[1] = $this->reduce($value[1]); |
| 1163 |
|
| 1164 |
return $value; |
| 1165 |
case 'fncall': |
| 1166 |
list(,$name, $argValues) = $value; |
| 1167 |
|
| 1168 |
// user defined function? |
| 1169 |
$func = $this->get(self::$namespaces['function'] . $name, false); |
| 1170 |
|
| 1171 |
if ($func) { |
| 1172 |
$this->pushEnv(); |
| 1173 |
|
| 1174 |
// set the args |
| 1175 |
if (isset($func->args)) { |
| 1176 |
$this->applyArguments($func->args, $argValues); |
| 1177 |
} |
| 1178 |
|
| 1179 |
// throw away lines and children |
| 1180 |
$tmp = (object)array( |
| 1181 |
'lines' => array(), |
| 1182 |
'children' => array() |
| 1183 |
); |
| 1184 |
|
| 1185 |
$ret = $this->compileChildren($func->children, $tmp); |
| 1186 |
|
| 1187 |
$this->popEnv(); |
| 1188 |
|
| 1189 |
return !isset($ret) ? self::$defaultValue : $ret; |
| 1190 |
} |
| 1191 |
|
| 1192 |
// built in function |
| 1193 |
if ($this->callBuiltin($name, $argValues, $returnValue)) { |
| 1194 |
return $returnValue; |
| 1195 |
} |
| 1196 |
|
| 1197 |
// need to flatten the arguments into a list |
| 1198 |
$listArgs = array(); |
| 1199 |
|
| 1200 |
foreach ((array)$argValues as $arg) { |
| 1201 |
if (empty($arg[0])) { |
| 1202 |
$listArgs[] = $this->reduce($arg[1]); |
| 1203 |
} |
| 1204 |
} |
| 1205 |
|
| 1206 |
return array('function', $name, array('list', ',', $listArgs)); |
| 1207 |
default: |
| 1208 |
return $value; |
| 1209 |
} |
| 1210 |
} |
| 1211 |
|
| 1212 |
public function normalizeValue($value) |
| 1213 |
{ |
| 1214 |
$value = $this->coerceForExpression($this->reduce($value)); |
| 1215 |
list($type) = $value; |
| 1216 |
|
| 1217 |
switch ($type) { |
| 1218 |
case 'list': |
| 1219 |
$value = $this->extractInterpolation($value); |
| 1220 |
|
| 1221 |
if ($value[0] != 'list') { |
| 1222 |
return array('keyword', $this->compileValue($value)); |
| 1223 |
} |
| 1224 |
|
| 1225 |
foreach ($value[2] as $key => $item) { |
| 1226 |
$value[2][$key] = $this->normalizeValue($item); |
| 1227 |
} |
| 1228 |
|
| 1229 |
return $value; |
| 1230 |
|
| 1231 |
case 'number': |
| 1232 |
return $this->normalizeNumber($value); |
| 1233 |
|
| 1234 |
default: |
| 1235 |
return $value; |
| 1236 |
} |
| 1237 |
} |
| 1238 |
|
| 1239 |
// just does physical lengths for now |
| 1240 |
protected function normalizeNumber($number) |
| 1241 |
{ |
| 1242 |
list(, $value, $unit) = $number; |
| 1243 |
|
| 1244 |
if (isset(self::$unitTable['in'][$unit])) { |
| 1245 |
$conv = self::$unitTable['in'][$unit]; |
| 1246 |
|
| 1247 |
return array('number', $value / $conv, 'in'); |
| 1248 |
} |
| 1249 |
|
| 1250 |
return $number; |
| 1251 |
} |
| 1252 |
|
| 1253 |
// $number should be normalized |
| 1254 |
protected function coerceUnit($number, $unit) |
| 1255 |
{ |
| 1256 |
list(, $value, $baseUnit) = $number; |
| 1257 |
|
| 1258 |
if (isset(self::$unitTable[$baseUnit][$unit])) { |
| 1259 |
$value = $value * self::$unitTable[$baseUnit][$unit]; |
| 1260 |
} |
| 1261 |
|
| 1262 |
return array('number', $value, $unit); |
| 1263 |
} |
| 1264 |
|
| 1265 |
protected function opAddNumberNumber($left, $right) |
| 1266 |
{ |
| 1267 |
return array('number', $left[1] + $right[1], $left[2]); |
| 1268 |
} |
| 1269 |
|
| 1270 |
protected function opMulNumberNumber($left, $right) |
| 1271 |
{ |
| 1272 |
return array('number', $left[1] * $right[1], $left[2]); |
| 1273 |
} |
| 1274 |
|
| 1275 |
protected function opSubNumberNumber($left, $right) |
| 1276 |
{ |
| 1277 |
return array('number', $left[1] - $right[1], $left[2]); |
| 1278 |
} |
| 1279 |
|
| 1280 |
protected function opDivNumberNumber($left, $right) |
| 1281 |
{ |
| 1282 |
return array('number', $left[1] / $right[1], $left[2]); |
| 1283 |
} |
| 1284 |
|
| 1285 |
protected function opModNumberNumber($left, $right) |
| 1286 |
{ |
| 1287 |
return array('number', $left[1] % $right[1], $left[2]); |
| 1288 |
} |
| 1289 |
|
| 1290 |
// adding strings |
| 1291 |
protected function opAdd($left, $right) |
| 1292 |
{ |
| 1293 |
if ($strLeft = $this->coerceString($left)) { |
| 1294 |
if ($right[0] == 'string') { |
| 1295 |
$right[1] = ''; |
| 1296 |
} |
| 1297 |
|
| 1298 |
$strLeft[2][] = $right; |
| 1299 |
|
| 1300 |
return $strLeft; |
| 1301 |
} |
| 1302 |
|
| 1303 |
if ($strRight = $this->coerceString($right)) { |
| 1304 |
if ($left[0] == 'string') { |
| 1305 |
$left[1] = ''; |
| 1306 |
} |
| 1307 |
|
| 1308 |
array_unshift($strRight[2], $left); |
| 1309 |
|
| 1310 |
return $strRight; |
| 1311 |
} |
| 1312 |
} |
| 1313 |
|
| 1314 |
protected function opAnd($left, $right, $shouldEval) |
| 1315 |
{ |
| 1316 |
if (!$shouldEval) { |
| 1317 |
return; |
| 1318 |
} |
| 1319 |
|
| 1320 |
if ($left != self::$false) { |
| 1321 |
return $right; |
| 1322 |
} |
| 1323 |
|
| 1324 |
return $left; |
| 1325 |
} |
| 1326 |
|
| 1327 |
protected function opOr($left, $right, $shouldEval) |
| 1328 |
{ |
| 1329 |
if (!$shouldEval) { |
| 1330 |
return; |
| 1331 |
} |
| 1332 |
|
| 1333 |
if ($left != self::$false) { |
| 1334 |
return $left; |
| 1335 |
} |
| 1336 |
|
| 1337 |
return $right; |
| 1338 |
} |
| 1339 |
|
| 1340 |
protected function opColorColor($op, $left, $right) |
| 1341 |
{ |
| 1342 |
$out = array('color'); |
| 1343 |
|
| 1344 |
foreach (range(1, 3) as $i) { |
| 1345 |
$lval = isset($left[$i]) ? $left[$i] : 0; |
| 1346 |
$rval = isset($right[$i]) ? $right[$i] : 0; |
| 1347 |
|
| 1348 |
switch ($op) { |
| 1349 |
case '+': |
| 1350 |
$out[] = $lval + $rval; |
| 1351 |
break; |
| 1352 |
case '-': |
| 1353 |
$out[] = $lval - $rval; |
| 1354 |
break; |
| 1355 |
case '*': |
| 1356 |
$out[] = $lval * $rval; |
| 1357 |
break; |
| 1358 |
case '%': |
| 1359 |
$out[] = $lval % $rval; |
| 1360 |
break; |
| 1361 |
case '/': |
| 1362 |
if ($rval == 0) { |
| 1363 |
$this->throwError("color: Can't divide by zero"); |
| 1364 |
} |
| 1365 |
$out[] = $lval / $rval; |
| 1366 |
break; |
| 1367 |
case '==': |
| 1368 |
return $this->opEq($left, $right); |
| 1369 |
case '!=': |
| 1370 |
return $this->opNeq($left, $right); |
| 1371 |
default: |
| 1372 |
$this->throwError("color: unknown op $op"); |
| 1373 |
} |
| 1374 |
} |
| 1375 |
|
| 1376 |
if (isset($left[4])) { |
| 1377 |
$out[4] = $left[4]; |
| 1378 |
} elseif (isset($right[4])) { |
| 1379 |
$out[4] = $right[4]; |
| 1380 |
} |
| 1381 |
|
| 1382 |
return $this->fixColor($out); |
| 1383 |
} |
| 1384 |
|
| 1385 |
protected function opColorNumber($op, $left, $right) |
| 1386 |
{ |
| 1387 |
$value = $right[1]; |
| 1388 |
|
| 1389 |
return $this->opColorColor( |
| 1390 |
$op, |
| 1391 |
$left, |
| 1392 |
array('color', $value, $value, $value) |
| 1393 |
); |
| 1394 |
} |
| 1395 |
|
| 1396 |
protected function opNumberColor($op, $left, $right) |
| 1397 |
{ |
| 1398 |
$value = $left[1]; |
| 1399 |
|
| 1400 |
return $this->opColorColor( |
| 1401 |
$op, |
| 1402 |
array('color', $value, $value, $value), |
| 1403 |
$right |
| 1404 |
); |
| 1405 |
} |
| 1406 |
|
| 1407 |
protected function opEq($left, $right) |
| 1408 |
{ |
| 1409 |
if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) { |
| 1410 |
$lStr[1] = ''; |
| 1411 |
$rStr[1] = ''; |
| 1412 |
|
| 1413 |
return $this->toBool($this->compileValue($lStr) == $this->compileValue($rStr)); |
| 1414 |
} |
| 1415 |
|
| 1416 |
return $this->toBool($left == $right); |
| 1417 |
} |
| 1418 |
|
| 1419 |
protected function opNeq($left, $right) |
| 1420 |
{ |
| 1421 |
return $this->toBool($left != $right); |
| 1422 |
} |
| 1423 |
|
| 1424 |
protected function opGteNumberNumber($left, $right) |
| 1425 |
{ |
| 1426 |
return $this->toBool($left[1] >= $right[1]); |
| 1427 |
} |
| 1428 |
|
| 1429 |
protected function opGtNumberNumber($left, $right) |
| 1430 |
{ |
| 1431 |
return $this->toBool($left[1] > $right[1]); |
| 1432 |
} |
| 1433 |
|
| 1434 |
protected function opLteNumberNumber($left, $right) |
| 1435 |
{ |
| 1436 |
return $this->toBool($left[1] <= $right[1]); |
| 1437 |
} |
| 1438 |
|
| 1439 |
protected function opLtNumberNumber($left, $right) |
| 1440 |
{ |
| 1441 |
return $this->toBool($left[1] < $right[1]); |
| 1442 |
} |
| 1443 |
|
| 1444 |
public function toBool($thing) |
| 1445 |
{ |
| 1446 |
return $thing ? self::$true : self::$false; |
| 1447 |
} |
| 1448 |
|
| 1449 |
/** |
| 1450 |
* Compiles a primitive value into a CSS property value. |
| 1451 |
* |
| 1452 |
* Values in scssphp are typed by being wrapped in arrays, their format is |
| 1453 |
* typically: |
| 1454 |
* |
| 1455 |
* array(type, contents [, additional_contents]*) |
| 1456 |
* |
| 1457 |
* The input is expected to be reduced. This function will not work on |
| 1458 |
* things like expressions and variables. |
| 1459 |
* |
| 1460 |
* @param array $value |
| 1461 |
*/ |
| 1462 |
protected function compileValue($value) |
| 1463 |
{ |
| 1464 |
$value = $this->reduce($value); |
| 1465 |
|
| 1466 |
list($type) = $value; |
| 1467 |
|
| 1468 |
switch ($type) { |
| 1469 |
case 'keyword': |
| 1470 |
return $value[1]; |
| 1471 |
case 'color': |
| 1472 |
// [1] - red component (either number for a %) |
| 1473 |
// [2] - green component |
| 1474 |
// [3] - blue component |
| 1475 |
// [4] - optional alpha component |
| 1476 |
list(, $r, $g, $b) = $value; |
| 1477 |
|
| 1478 |
$r = round($r); |
| 1479 |
$g = round($g); |
| 1480 |
$b = round($b); |
| 1481 |
|
| 1482 |
if (count($value) == 5 && $value[4] != 1) { // rgba |
| 1483 |
return 'rgba('.$r.', '.$g.', '.$b.', '.$value[4].')'; |
| 1484 |
} |
| 1485 |
|
| 1486 |
$h = sprintf('#%02x%02x%02x', $r, $g, $b); |
| 1487 |
|
| 1488 |
// Converting hex color to short notation (e.g. #003399 to #039) |
| 1489 |
if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) { |
| 1490 |
$h = '#' . $h[1] . $h[3] . $h[5]; |
| 1491 |
} |
| 1492 |
|
| 1493 |
return $h; |
| 1494 |
case 'number': |
| 1495 |
return round($value[1], $this->numberPrecision) . $value[2]; |
| 1496 |
case 'string': |
| 1497 |
return $value[1] . $this->compileStringContent($value) . $value[1]; |
| 1498 |
case 'function': |
| 1499 |
$args = !empty($value[2]) ? $this->compileValue($value[2]) : ''; |
| 1500 |
return "$value[1]($args)"; |
| 1501 |
case 'list': |
| 1502 |
$value = $this->extractInterpolation($value); |
| 1503 |
|
| 1504 |
if ($value[0] != 'list') { |
| 1505 |
return $this->compileValue($value); |
| 1506 |
} |
| 1507 |
|
| 1508 |
list(, $delim, $items) = $value; |
| 1509 |
|
| 1510 |
$filtered = array(); |
| 1511 |
foreach ($items as $item) { |
| 1512 |
if ($item[0] == 'null') { |
| 1513 |
continue; |
| 1514 |
} |
| 1515 |
|
| 1516 |
$filtered[] = $this->compileValue($item); |
| 1517 |
} |
| 1518 |
|
| 1519 |
return implode("$delim ", $filtered); |
| 1520 |
case 'interpolated': # node created by extractInterpolation |
| 1521 |
list(, $interpolate, $left, $right) = $value; |
| 1522 |
list(,, $whiteLeft, $whiteRight) = $interpolate; |
| 1523 |
|
| 1524 |
$left = count($left[2]) > 0 ? |
| 1525 |
$this->compileValue($left).$whiteLeft : ''; |
| 1526 |
|
| 1527 |
$right = count($right[2]) > 0 ? |
| 1528 |
$whiteRight.$this->compileValue($right) : ''; |
| 1529 |
|
| 1530 |
return $left.$this->compileValue($interpolate).$right; |
| 1531 |
|
| 1532 |
case 'interpolate': # raw parse node |
| 1533 |
list(, $exp) = $value; |
| 1534 |
|
| 1535 |
// strip quotes if it's a string |
| 1536 |
$reduced = $this->reduce($exp); |
| 1537 |
switch ($reduced[0]) { |
| 1538 |
case 'string': |
| 1539 |
$reduced = array('keyword', |
| 1540 |
$this->compileStringContent($reduced)); |
| 1541 |
break; |
| 1542 |
case 'null': |
| 1543 |
$reduced = array('keyword', ''); |
| 1544 |
} |
| 1545 |
|
| 1546 |
return $this->compileValue($reduced); |
| 1547 |
case 'null': |
| 1548 |
return 'null'; |
| 1549 |
default: |
| 1550 |
$this->throwError("unknown value type: $type"); |
| 1551 |
} |
| 1552 |
} |
| 1553 |
|
| 1554 |
protected function compileStringContent($string) |
| 1555 |
{ |
| 1556 |
$parts = array(); |
| 1557 |
|
| 1558 |
foreach ($string[2] as $part) { |
| 1559 |
if (is_array($part)) { |
| 1560 |
$parts[] = $this->compileValue($part); |
| 1561 |
} else { |
| 1562 |
$parts[] = $part; |
| 1563 |
} |
| 1564 |
} |
| 1565 |
|
| 1566 |
return implode($parts); |
| 1567 |
} |
| 1568 |
|
| 1569 |
// doesn't need to be recursive, compileValue will handle that |
| 1570 |
protected function extractInterpolation($list) |
| 1571 |
{ |
| 1572 |
$items = $list[2]; |
| 1573 |
|
| 1574 |
foreach ($items as $i => $item) { |
| 1575 |
if ($item[0] == 'interpolate') { |
| 1576 |
$before = array('list', $list[1], array_slice($items, 0, $i)); |
| 1577 |
$after = array('list', $list[1], array_slice($items, $i + 1)); |
| 1578 |
|
| 1579 |
return array('interpolated', $item, $before, $after); |
| 1580 |
} |
| 1581 |
} |
| 1582 |
|
| 1583 |
return $list; |
| 1584 |
} |
| 1585 |
|
| 1586 |
// find the final set of selectors |
| 1587 |
protected function multiplySelectors($env) |
| 1588 |
{ |
| 1589 |
$envs = array(); |
| 1590 |
|
| 1591 |
while (null !== $env) { |
| 1592 |
if (!empty($env->selectors)) { |
| 1593 |
$envs[] = $env; |
| 1594 |
} |
| 1595 |
|
| 1596 |
$env = $env->parent; |
| 1597 |
}; |
| 1598 |
|
| 1599 |
$selectors = array(); |
| 1600 |
$parentSelectors = array(array()); |
| 1601 |
|
| 1602 |
while ($env = array_pop($envs)) { |
| 1603 |
$selectors = array(); |
| 1604 |
|
| 1605 |
foreach ($env->selectors as $selector) { |
| 1606 |
foreach ($parentSelectors as $parent) { |
| 1607 |
$selectors[] = $this->joinSelectors($parent, $selector); |
| 1608 |
} |
| 1609 |
} |
| 1610 |
|
| 1611 |
$parentSelectors = $selectors; |
| 1612 |
} |
| 1613 |
|
| 1614 |
return $selectors; |
| 1615 |
} |
| 1616 |
|
| 1617 |
// looks for & to replace, or append parent before child |
| 1618 |
protected function joinSelectors($parent, $child) |
| 1619 |
{ |
| 1620 |
$setSelf = false; |
| 1621 |
$out = array(); |
| 1622 |
|
| 1623 |
foreach ($child as $part) { |
| 1624 |
$newPart = array(); |
| 1625 |
|
| 1626 |
foreach ($part as $p) { |
| 1627 |
if ($p == self::$selfSelector) { |
| 1628 |
$setSelf = true; |
| 1629 |
|
| 1630 |
foreach ($parent as $i => $parentPart) { |
| 1631 |
if ($i > 0) { |
| 1632 |
$out[] = $newPart; |
| 1633 |
$newPart = array(); |
| 1634 |
} |
| 1635 |
|
| 1636 |
foreach ($parentPart as $pp) { |
| 1637 |
$newPart[] = $pp; |
| 1638 |
} |
| 1639 |
} |
| 1640 |
} else { |
| 1641 |
$newPart[] = $p; |
| 1642 |
} |
| 1643 |
} |
| 1644 |
|
| 1645 |
$out[] = $newPart; |
| 1646 |
} |
| 1647 |
|
| 1648 |
return $setSelf ? $out : array_merge($parent, $child); |
| 1649 |
} |
| 1650 |
|
| 1651 |
protected function multiplyMedia($env, $childQueries = null) |
| 1652 |
{ |
| 1653 |
if (!isset($env) || |
| 1654 |
!empty($env->block->type) && $env->block->type != 'media' |
| 1655 |
) { |
| 1656 |
return $childQueries; |
| 1657 |
} |
| 1658 |
|
| 1659 |
// plain old block, skip |
| 1660 |
if (empty($env->block->type)) { |
| 1661 |
return $this->multiplyMedia($env->parent, $childQueries); |
| 1662 |
} |
| 1663 |
|
| 1664 |
$parentQueries = $env->block->queryList; |
| 1665 |
if ($childQueries == null) { |
| 1666 |
$childQueries = $parentQueries; |
| 1667 |
} else { |
| 1668 |
$originalQueries = $childQueries; |
| 1669 |
$childQueries = array(); |
| 1670 |
|
| 1671 |
foreach ($parentQueries as $parentQuery) { |
| 1672 |
foreach ($originalQueries as $childQuery) { |
| 1673 |
$childQueries []= array_merge($parentQuery, $childQuery); |
| 1674 |
} |
| 1675 |
} |
| 1676 |
} |
| 1677 |
|
| 1678 |
return $this->multiplyMedia($env->parent, $childQueries); |
| 1679 |
} |
| 1680 |
|
| 1681 |
// convert something to list |
| 1682 |
protected function coerceList($item, $delim = ',') |
| 1683 |
{ |
| 1684 |
if (isset($item) && $item[0] == 'list') { |
| 1685 |
return $item; |
| 1686 |
} |
| 1687 |
|
| 1688 |
return array('list', $delim, !isset($item) ? array(): array($item)); |
| 1689 |
} |
| 1690 |
|
| 1691 |
protected function applyArguments($argDef, $argValues) |
| 1692 |
{ |
| 1693 |
$storeEnv = $this->getStoreEnv(); |
| 1694 |
|
| 1695 |
$env = new \stdClass; |
| 1696 |
$env->store = $storeEnv->store; |
| 1697 |
|
| 1698 |
$hasVariable = false; |
| 1699 |
$args = array(); |
| 1700 |
|
| 1701 |
foreach ($argDef as $i => $arg) { |
| 1702 |
list($name, $default, $isVariable) = $argDef[$i]; |
| 1703 |
|
| 1704 |
$args[$name] = array($i, $name, $default, $isVariable); |
| 1705 |
$hasVariable |= $isVariable; |
| 1706 |
} |
| 1707 |
|
| 1708 |
$keywordArgs = array(); |
| 1709 |
$deferredKeywordArgs = array(); |
| 1710 |
$remaining = array(); |
| 1711 |
|
| 1712 |
// assign the keyword args |
| 1713 |
foreach ((array) $argValues as $arg) { |
| 1714 |
if (!empty($arg[0])) { |
| 1715 |
if (!isset($args[$arg[0][1]])) { |
| 1716 |
if ($hasVariable) { |
| 1717 |
$deferredKeywordArgs[$arg[0][1]] = $arg[1]; |
| 1718 |
} else { |
| 1719 |
$this->throwError("Mixin or function doesn't have an argument named $%s.", $arg[0][1]); |
| 1720 |
} |
| 1721 |
} elseif ($args[$arg[0][1]][0] < count($remaining)) { |
| 1722 |
$this->throwError("The argument $%s was passed both by position and by name.", $arg[0][1]); |
| 1723 |
} else { |
| 1724 |
$keywordArgs[$arg[0][1]] = $arg[1]; |
| 1725 |
} |
| 1726 |
} elseif (count($keywordArgs)) { |
| 1727 |
$this->throwError('Positional arguments must come before keyword arguments.'); |
| 1728 |
} elseif ($arg[2] == true) { |
| 1729 |
$val = $this->reduce($arg[1], true); |
| 1730 |
|
| 1731 |
if ($val[0] == 'list') { |
| 1732 |
foreach ($val[2] as $name => $item) { |
| 1733 |
if (!is_numeric($name)) { |
| 1734 |
$keywordArgs[$name] = $item; |
| 1735 |
} else { |
| 1736 |
$remaining[] = $item; |
| 1737 |
} |
| 1738 |
} |
| 1739 |
} else { |
| 1740 |
$remaining[] = $val; |
| 1741 |
} |
| 1742 |
} else { |
| 1743 |
$remaining[] = $arg[1]; |
| 1744 |
} |
| 1745 |
} |
| 1746 |
|
| 1747 |
foreach ($args as $arg) { |
| 1748 |
list($i, $name, $default, $isVariable) = $arg; |
| 1749 |
|
| 1750 |
if ($isVariable) { |
| 1751 |
$val = array('list', ',', array()); |
| 1752 |
for ($count = count($remaining); $i < $count; $i++) { |
| 1753 |
$val[2][] = $remaining[$i]; |
| 1754 |
} |
| 1755 |
foreach ($deferredKeywordArgs as $itemName => $item) { |
| 1756 |
$val[2][$itemName] = $item; |
| 1757 |
} |
| 1758 |
} elseif (isset($remaining[$i])) { |
| 1759 |
$val = $remaining[$i]; |
| 1760 |
} elseif (isset($keywordArgs[$name])) { |
| 1761 |
$val = $keywordArgs[$name]; |
| 1762 |
} elseif (!empty($default)) { |
| 1763 |
continue; |
| 1764 |
} else { |
| 1765 |
$this->throwError("Missing argument $name"); |
| 1766 |
} |
| 1767 |
|
| 1768 |
$this->set($name, $this->reduce($val, true), true, $env); |
| 1769 |
} |
| 1770 |
|
| 1771 |
$storeEnv->store = $env->store; |
| 1772 |
|
| 1773 |
foreach ($args as $arg) { |
| 1774 |
list($i, $name, $default, $isVariable) = $arg; |
| 1775 |
|
| 1776 |
if ($isVariable || isset($remaining[$i]) || isset($keywordArgs[$name]) || empty($default)) { |
| 1777 |
continue; |
| 1778 |
} |
| 1779 |
|
| 1780 |
$this->set($name, $this->reduce($default, true), true); |
| 1781 |
} |
| 1782 |
} |
| 1783 |
|
| 1784 |
protected function pushEnv($block = null) |
| 1785 |
{ |
| 1786 |
$env = new \stdClass; |
| 1787 |
$env->parent = $this->env; |
| 1788 |
$env->store = array(); |
| 1789 |
$env->block = $block; |
| 1790 |
$env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0; |
| 1791 |
|
| 1792 |
$this->env = $env; |
| 1793 |
|
| 1794 |
return $env; |
| 1795 |
} |
| 1796 |
|
| 1797 |
protected function normalizeName($name) |
| 1798 |
{ |
| 1799 |
return str_replace('-', '_', $name); |
| 1800 |
} |
| 1801 |
|
| 1802 |
protected function getStoreEnv() |
| 1803 |
{ |
| 1804 |
return isset($this->storeEnv) ? $this->storeEnv : $this->env; |
| 1805 |
} |
| 1806 |
|
| 1807 |
protected function set($name, $value, $shadow = false, $env = null) |
| 1808 |
{ |
| 1809 |
$name = $this->normalizeName($name); |
| 1810 |
|
| 1811 |
if ($shadow) { |
| 1812 |
$this->setRaw($name, $value, $env); |
| 1813 |
} else { |
| 1814 |
$this->setExisting($name, $value, $env); |
| 1815 |
} |
| 1816 |
} |
| 1817 |
|
| 1818 |
protected function setExisting($name, $value, $env = null) |
| 1819 |
{ |
| 1820 |
if (!isset($env)) { |
| 1821 |
$env = $this->getStoreEnv(); |
| 1822 |
} |
| 1823 |
|
| 1824 |
if (isset($env->store[$name]) || !isset($env->parent)) { |
| 1825 |
$env->store[$name] = $value; |
| 1826 |
} else { |
| 1827 |
$this->setExisting($name, $value, $env->parent); |
| 1828 |
} |
| 1829 |
} |
| 1830 |
|
| 1831 |
protected function setRaw($name, $value, $env = null) |
| 1832 |
{ |
| 1833 |
if (!isset($env)) { |
| 1834 |
$env = $this->getStoreEnv(); |
| 1835 |
} |
| 1836 |
|
| 1837 |
$env->store[$name] = $value; |
| 1838 |
} |
| 1839 |
|
| 1840 |
public function get($name, $defaultValue = null, $env = null) |
| 1841 |
{ |
| 1842 |
$name = $this->normalizeName($name); |
| 1843 |
|
| 1844 |
if (!isset($env)) { |
| 1845 |
$env = $this->getStoreEnv(); |
| 1846 |
} |
| 1847 |
|
| 1848 |
if (! isset($defaultValue)) { |
| 1849 |
$defaultValue = self::$defaultValue; |
| 1850 |
} |
| 1851 |
|
| 1852 |
if (isset($env->store[$name])) { |
| 1853 |
return $env->store[$name]; |
| 1854 |
} |
| 1855 |
|
| 1856 |
if (isset($env->parent)) { |
| 1857 |
return $this->get($name, $defaultValue, $env->parent); |
| 1858 |
} |
| 1859 |
|
| 1860 |
return $defaultValue; // found nothing |
| 1861 |
} |
| 1862 |
|
| 1863 |
protected function injectVariables(array $args) |
| 1864 |
{ |
| 1865 |
if (empty($args)) { |
| 1866 |
return; |
| 1867 |
} |
| 1868 |
|
| 1869 |
$parser = new Parser(__METHOD__, false); |
| 1870 |
|
| 1871 |
foreach ($args as $name => $strValue) { |
| 1872 |
if ($name[0] === '$') { |
| 1873 |
$name = substr($name, 1); |
| 1874 |
} |
| 1875 |
|
| 1876 |
$parser->env = null; |
| 1877 |
$parser->count = 0; |
| 1878 |
$parser->buffer = (string) $strValue; |
| 1879 |
$parser->inParens = false; |
| 1880 |
$parser->eatWhiteDefault = true; |
| 1881 |
$parser->insertComments = true; |
| 1882 |
|
| 1883 |
if (! $parser->valueList($value)) { |
| 1884 |
throw new \Exception("failed to parse passed in variable $name: $strValue"); |
| 1885 |
} |
| 1886 |
|
| 1887 |
$this->set($name, $value); |
| 1888 |
} |
| 1889 |
} |
| 1890 |
|
| 1891 |
/** |
| 1892 |
* Set variables |
| 1893 |
* |
| 1894 |
* @param array $variables |
| 1895 |
*/ |
| 1896 |
public function setVariables(array $variables) |
| 1897 |
{ |
| 1898 |
$this->registeredVars = array_merge($this->registeredVars, $variables); |
| 1899 |
} |
| 1900 |
|
| 1901 |
/** |
| 1902 |
* Unset variable |
| 1903 |
* |
| 1904 |
* @param string $name |
| 1905 |
*/ |
| 1906 |
public function unsetVariable($name) |
| 1907 |
{ |
| 1908 |
unset($this->registeredVars[$name]); |
| 1909 |
} |
| 1910 |
|
| 1911 |
protected function popEnv() |
| 1912 |
{ |
| 1913 |
$env = $this->env; |
| 1914 |
$this->env = $this->env->parent; |
| 1915 |
|
| 1916 |
return $env; |
| 1917 |
} |
| 1918 |
|
| 1919 |
public function getParsedFiles() |
| 1920 |
{ |
| 1921 |
return $this->parsedFiles; |
| 1922 |
} |
| 1923 |
|
| 1924 |
public function addImportPath($path) |
| 1925 |
{ |
| 1926 |
$this->importPaths[] = $path; |
| 1927 |
} |
| 1928 |
|
| 1929 |
public function setImportPaths($path) |
| 1930 |
{ |
| 1931 |
$this->importPaths = (array)$path; |
| 1932 |
} |
| 1933 |
|
| 1934 |
public function setNumberPrecision($numberPrecision) |
| 1935 |
{ |
| 1936 |
$this->numberPrecision = $numberPrecision; |
| 1937 |
} |
| 1938 |
|
| 1939 |
public function setFormatter($formatterName) |
| 1940 |
{ |
| 1941 |
$this->formatter = $formatterName; |
| 1942 |
} |
| 1943 |
|
| 1944 |
public function registerFunction($name, $func) |
| 1945 |
{ |
| 1946 |
$this->userFunctions[$this->normalizeName($name)] = $func; |
| 1947 |
} |
| 1948 |
|
| 1949 |
public function unregisterFunction($name) |
| 1950 |
{ |
| 1951 |
unset($this->userFunctions[$this->normalizeName($name)]); |
| 1952 |
} |
| 1953 |
|
| 1954 |
protected function importFile($path, $out) |
| 1955 |
{ |
| 1956 |
// see if tree is cached |
| 1957 |
$realPath = realpath($path); |
| 1958 |
if (isset($this->importCache[$realPath])) { |
| 1959 |
$tree = $this->importCache[$realPath]; |
| 1960 |
} else { |
| 1961 |
$code = file_get_contents($path); |
| 1962 |
$parser = new Parser($path, false); |
| 1963 |
$tree = $parser->parse($code); |
| 1964 |
$this->parsedFiles[] = $path; |
| 1965 |
|
| 1966 |
$this->importCache[$realPath] = $tree; |
| 1967 |
} |
| 1968 |
|
| 1969 |
$pi = pathinfo($path); |
| 1970 |
array_unshift($this->importPaths, $pi['dirname']); |
| 1971 |
$this->compileChildren($tree->children, $out); |
| 1972 |
array_shift($this->importPaths); |
| 1973 |
} |
| 1974 |
|
| 1975 |
// results the file path for an import url if it exists |
| 1976 |
public function findImport($url) |
| 1977 |
{ |
| 1978 |
$urls = array(); |
| 1979 |
|
| 1980 |
// for "normal" scss imports (ignore vanilla css and external requests) |
| 1981 |
if (!preg_match('/\.css|^http:\/\/$/', $url)) { |
| 1982 |
// try both normal and the _partial filename |
| 1983 |
$urls = array($url, preg_replace('/[^\/]+$/', '_\0', $url)); |
| 1984 |
} |
| 1985 |
|
| 1986 |
foreach ($this->importPaths as $dir) { |
| 1987 |
if (is_string($dir)) { |
| 1988 |
// check urls for normal import paths |
| 1989 |
foreach ($urls as $full) { |
| 1990 |
$full = $dir . |
| 1991 |
(!empty($dir) && substr($dir, -1) != '/' ? '/' : '') . |
| 1992 |
$full; |
| 1993 |
|
| 1994 |
if ($this->fileExists($file = $full.'.scss') || |
| 1995 |
$this->fileExists($file = $full) |
| 1996 |
) { |
| 1997 |
return $file; |
| 1998 |
} |
| 1999 |
} |
| 2000 |
} else { |
| 2001 |
// check custom callback for import path |
| 2002 |
$file = call_user_func($dir, $url, $this); |
| 2003 |
|
| 2004 |
if ($file !== null) { |
| 2005 |
return $file; |
| 2006 |
} |
| 2007 |
} |
| 2008 |
} |
| 2009 |
|
| 2010 |
return null; |
| 2011 |
} |
| 2012 |
|
| 2013 |
protected function fileExists($name) |
| 2014 |
{ |
| 2015 |
return is_file($name); |
| 2016 |
} |
| 2017 |
|
| 2018 |
protected function callBuiltin($name, $args, &$returnValue) |
| 2019 |
{ |
| 2020 |
// try a lib function |
| 2021 |
$name = $this->normalizeName($name); |
| 2022 |
$libName = 'lib' . preg_replace_callback( |
| 2023 |
'/_(.)/', |
| 2024 |
function ($m) { |
| 2025 |
return ucfirst($m[1]); |
| 2026 |
}, |
| 2027 |
ucfirst($name) |
| 2028 |
); |
| 2029 |
|
| 2030 |
$f = array($this, $libName); |
| 2031 |
|
| 2032 |
if (is_callable($f)) { |
| 2033 |
$prototype = isset(self::$$libName) ? self::$$libName : null; |
| 2034 |
$sorted = $this->sortArgs($prototype, $args); |
| 2035 |
|
| 2036 |
foreach ($sorted as &$val) { |
| 2037 |
$val = $this->reduce($val, true); |
| 2038 |
} |
| 2039 |
|
| 2040 |
$returnValue = call_user_func($f, $sorted, $this); |
| 2041 |
} elseif (isset($this->userFunctions[$name])) { |
| 2042 |
// see if we can find a user function |
| 2043 |
$fn = $this->userFunctions[$name]; |
| 2044 |
|
| 2045 |
foreach ($args as &$val) { |
| 2046 |
$val = $this->reduce($val[1], true); |
| 2047 |
} |
| 2048 |
|
| 2049 |
$returnValue = call_user_func($fn, $args, $this); |
| 2050 |
} |
| 2051 |
|
| 2052 |
if (isset($returnValue)) { |
| 2053 |
// coerce a php value into a scss one |
| 2054 |
if (is_numeric($returnValue)) { |
| 2055 |
$returnValue = array('number', $returnValue, ''); |
| 2056 |
} elseif (is_bool($returnValue)) { |
| 2057 |
$returnValue = $returnValue ? self::$true : self::$false; |
| 2058 |
} elseif (!is_array($returnValue)) { |
| 2059 |
$returnValue = array('keyword', $returnValue); |
| 2060 |
} |
| 2061 |
|
| 2062 |
return true; |
| 2063 |
} |
| 2064 |
|
| 2065 |
return false; |
| 2066 |
} |
| 2067 |
|
| 2068 |
// sorts any keyword arguments |
| 2069 |
// TODO: merge with apply arguments |
| 2070 |
protected function sortArgs($prototype, $args) |
| 2071 |
{ |
| 2072 |
$keyArgs = array(); |
| 2073 |
$posArgs = array(); |
| 2074 |
|
| 2075 |
foreach ($args as $arg) { |
| 2076 |
list($key, $value) = $arg; |
| 2077 |
$key = $key[1]; |
| 2078 |
if (empty($key)) { |
| 2079 |
$posArgs[] = $value; |
| 2080 |
} else { |
| 2081 |
$keyArgs[$key] = $value; |
| 2082 |
} |
| 2083 |
} |
| 2084 |
|
| 2085 |
if (!isset($prototype)) { |
| 2086 |
return $posArgs; |
| 2087 |
} |
| 2088 |
|
| 2089 |
$finalArgs = array(); |
| 2090 |
|
| 2091 |
foreach ($prototype as $i => $names) { |
| 2092 |
if (isset($posArgs[$i])) { |
| 2093 |
$finalArgs[] = $posArgs[$i]; |
| 2094 |
continue; |
| 2095 |
} |
| 2096 |
|
| 2097 |
$set = false; |
| 2098 |
foreach ((array)$names as $name) { |
| 2099 |
if (isset($keyArgs[$name])) { |
| 2100 |
$finalArgs[] = $keyArgs[$name]; |
| 2101 |
$set = true; |
| 2102 |
break; |
| 2103 |
} |
| 2104 |
} |
| 2105 |
|
| 2106 |
if (!$set) { |
| 2107 |
$finalArgs[] = null; |
| 2108 |
} |
| 2109 |
} |
| 2110 |
|
| 2111 |
return $finalArgs; |
| 2112 |
} |
| 2113 |
|
| 2114 |
protected function coerceForExpression($value) |
| 2115 |
{ |
| 2116 |
if ($color = $this->coerceColor($value)) { |
| 2117 |
return $color; |
| 2118 |
} |
| 2119 |
|
| 2120 |
return $value; |
| 2121 |
} |
| 2122 |
|
| 2123 |
protected function coerceColor($value) |
| 2124 |
{ |
| 2125 |
switch ($value[0]) { |
| 2126 |
case 'color': |
| 2127 |
return $value; |
| 2128 |
|
| 2129 |
case 'keyword': |
| 2130 |
$name = $value[1]; |
| 2131 |
|
| 2132 |
if (isset(Colors::$cssColors[$name])) { |
| 2133 |
$rgba = explode(',', Colors::$cssColors[$name]); |
| 2134 |
|
| 2135 |
return isset($rgba[3]) |
| 2136 |
? array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2], (int) $rgba[3]) |
| 2137 |
: array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2]); |
| 2138 |
} |
| 2139 |
|
| 2140 |
return null; |
| 2141 |
} |
| 2142 |
|
| 2143 |
return null; |
| 2144 |
} |
| 2145 |
|
| 2146 |
protected function coerceString($value) |
| 2147 |
{ |
| 2148 |
switch ($value[0]) { |
| 2149 |
case 'string': |
| 2150 |
return $value; |
| 2151 |
case 'keyword': |
| 2152 |
return array('string', '', array($value[1])); |
| 2153 |
} |
| 2154 |
return null; |
| 2155 |
} |
| 2156 |
|
| 2157 |
public function assertList($value) |
| 2158 |
{ |
| 2159 |
if ($value[0] != 'list') { |
| 2160 |
$this->throwError('expecting list'); |
| 2161 |
} |
| 2162 |
|
| 2163 |
return $value; |
| 2164 |
} |
| 2165 |
|
| 2166 |
public function assertColor($value) |
| 2167 |
{ |
| 2168 |
if ($color = $this->coerceColor($value)) { |
| 2169 |
return $color; |
| 2170 |
} |
| 2171 |
|
| 2172 |
$this->throwError('expecting color'); |
| 2173 |
} |
| 2174 |
|
| 2175 |
public function assertNumber($value) |
| 2176 |
{ |
| 2177 |
if ($value[0] != 'number') { |
| 2178 |
$this->throwError('expecting number'); |
| 2179 |
} |
| 2180 |
|
| 2181 |
return $value[1]; |
| 2182 |
} |
| 2183 |
|
| 2184 |
protected function coercePercent($value) |
| 2185 |
{ |
| 2186 |
if ($value[0] == 'number') { |
| 2187 |
if ($value[2] == '%') { |
| 2188 |
return $value[1] / 100; |
| 2189 |
} |
| 2190 |
|
| 2191 |
return $value[1]; |
| 2192 |
} |
| 2193 |
|
| 2194 |
return 0; |
| 2195 |
} |
| 2196 |
|
| 2197 |
// make sure a color's components don't go out of bounds |
| 2198 |
protected function fixColor($c) |
| 2199 |
{ |
| 2200 |
foreach (range(1, 3) as $i) { |
| 2201 |
if ($c[$i] < 0) { |
| 2202 |
$c[$i] = 0; |
| 2203 |
} |
| 2204 |
|
| 2205 |
if ($c[$i] > 255) { |
| 2206 |
$c[$i] = 255; |
| 2207 |
} |
| 2208 |
} |
| 2209 |
|
| 2210 |
return $c; |
| 2211 |
} |
| 2212 |
|
| 2213 |
public function toHSL($red, $green, $blue) |
| 2214 |
{ |
| 2215 |
$min = min($red, $green, $blue); |
| 2216 |
$max = max($red, $green, $blue); |
| 2217 |
|
| 2218 |
$l = $min + $max; |
| 2219 |
|
| 2220 |
if ($min == $max) { |
| 2221 |
$s = $h = 0; |
| 2222 |
} else { |
| 2223 |
$d = $max - $min; |
| 2224 |
|
| 2225 |
if ($l < 255) { |
| 2226 |
$s = $d / $l; |
| 2227 |
} else { |
| 2228 |
$s = $d / (510 - $l); |
| 2229 |
} |
| 2230 |
|
| 2231 |
if ($red == $max) { |
| 2232 |
$h = 60 * ($green - $blue) / $d; |
| 2233 |
} elseif ($green == $max) { |
| 2234 |
$h = 60 * ($blue - $red) / $d + 120; |
| 2235 |
} elseif ($blue == $max) { |
| 2236 |
$h = 60 * ($red - $green) / $d + 240; |
| 2237 |
} |
| 2238 |
} |
| 2239 |
|
| 2240 |
return array('hsl', fmod($h, 360), $s * 100, $l / 5.1); |
| 2241 |
} |
| 2242 |
|
| 2243 |
public function hueToRGB($m1, $m2, $h) |
| 2244 |
{ |
| 2245 |
if ($h < 0) { |
| 2246 |
$h += 1; |
| 2247 |
} elseif ($h > 1) { |
| 2248 |
$h -= 1; |
| 2249 |
} |
| 2250 |
|
| 2251 |
if ($h * 6 < 1) { |
| 2252 |
return $m1 + ($m2 - $m1) * $h * 6; |
| 2253 |
} |
| 2254 |
|
| 2255 |
if ($h * 2 < 1) { |
| 2256 |
return $m2; |
| 2257 |
} |
| 2258 |
|
| 2259 |
if ($h * 3 < 2) { |
| 2260 |
return $m1 + ($m2 - $m1) * (2/3 - $h) * 6; |
| 2261 |
} |
| 2262 |
|
| 2263 |
return $m1; |
| 2264 |
} |
| 2265 |
|
| 2266 |
// H from 0 to 360, S and L from 0 to 100 |
| 2267 |
public function toRGB($hue, $saturation, $lightness) |
| 2268 |
{ |
| 2269 |
if ($hue < 0) { |
| 2270 |
$hue += 360; |
| 2271 |
} |
| 2272 |
|
| 2273 |
$h = $hue / 360; |
| 2274 |
$s = min(100, max(0, $saturation)) / 100; |
| 2275 |
$l = min(100, max(0, $lightness)) / 100; |
| 2276 |
|
| 2277 |
$m2 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s; |
| 2278 |
$m1 = $l * 2 - $m2; |
| 2279 |
|
| 2280 |
$r = $this->hueToRGB($m1, $m2, $h + 1/3) * 255; |
| 2281 |
$g = $this->hueToRGB($m1, $m2, $h) * 255; |
| 2282 |
$b = $this->hueToRGB($m1, $m2, $h - 1/3) * 255; |
| 2283 |
|
| 2284 |
$out = array('color', $r, $g, $b); |
| 2285 |
|
| 2286 |
return $out; |
| 2287 |
} |
| 2288 |
|
| 2289 |
// Built in functions |
| 2290 |
|
| 2291 |
protected static $libIf = array('condition', 'if-true', 'if-false'); |
| 2292 |
protected function libIf($args) |
| 2293 |
{ |
| 2294 |
list($cond,$t, $f) = $args; |
| 2295 |
|
| 2296 |
if (!$this->isTruthy($cond)) { |
| 2297 |
return $f; |
| 2298 |
} |
| 2299 |
|
| 2300 |
return $t; |
| 2301 |
} |
| 2302 |
|
| 2303 |
protected static $libIndex = array('list', 'value'); |
| 2304 |
protected function libIndex($args) |
| 2305 |
{ |
| 2306 |
list($list, $value) = $args; |
| 2307 |
|
| 2308 |
$list = $this->assertList($list); |
| 2309 |
|
| 2310 |
$values = array(); |
| 2311 |
|
| 2312 |
foreach ($list[2] as $item) { |
| 2313 |
$values[] = $this->normalizeValue($item); |
| 2314 |
} |
| 2315 |
|
| 2316 |
$key = array_search($this->normalizeValue($value), $values); |
| 2317 |
|
| 2318 |
return false === $key ? false : $key + 1; |
| 2319 |
} |
| 2320 |
|
| 2321 |
protected static $libRgb = array('red', 'green', 'blue'); |
| 2322 |
protected function libRgb($args) |
| 2323 |
{ |
| 2324 |
list($r,$g,$b) = $args; |
| 2325 |
|
| 2326 |
return array('color', $r[1], $g[1], $b[1]); |
| 2327 |
} |
| 2328 |
|
| 2329 |
protected static $libRgba = array( |
| 2330 |
array('red', 'color'), |
| 2331 |
'green', 'blue', 'alpha'); |
| 2332 |
protected function libRgba($args) |
| 2333 |
{ |
| 2334 |
if ($color = $this->coerceColor($args[0])) { |
| 2335 |
$num = !isset($args[1]) ? $args[3] : $args[1]; |
| 2336 |
$alpha = $this->assertNumber($num); |
| 2337 |
$color[4] = $alpha; |
| 2338 |
|
| 2339 |
return $color; |
| 2340 |
} |
| 2341 |
|
| 2342 |
list($r,$g,$b, $a) = $args; |
| 2343 |
|
| 2344 |
return array('color', $r[1], $g[1], $b[1], $a[1]); |
| 2345 |
} |
| 2346 |
|
| 2347 |
// helper function for adjust_color, change_color, and scale_color |
| 2348 |
protected function alterColor($args, $fn) |
| 2349 |
{ |
| 2350 |
$color = $this->assertColor($args[0]); |
| 2351 |
|
| 2352 |
foreach (array(1,2,3,7) as $i) { |
| 2353 |
if (isset($args[$i])) { |
| 2354 |
$val = $this->assertNumber($args[$i]); |
| 2355 |
$ii = $i == 7 ? 4 : $i; // alpha |
| 2356 |
$color[$ii] = |
| 2357 |
$this->$fn(isset($color[$ii]) ? $color[$ii] : 0, $val, $i); |
| 2358 |
} |
| 2359 |
} |
| 2360 |
|
| 2361 |
if (isset($args[4]) || isset($args[5]) || isset($args[6])) { |
| 2362 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2363 |
|
| 2364 |
foreach (array(4,5,6) as $i) { |
| 2365 |
if (isset($args[$i])) { |
| 2366 |
$val = $this->assertNumber($args[$i]); |
| 2367 |
$hsl[$i - 3] = $this->$fn($hsl[$i - 3], $val, $i); |
| 2368 |
} |
| 2369 |
} |
| 2370 |
|
| 2371 |
$rgb = $this->toRGB($hsl[1], $hsl[2], $hsl[3]); |
| 2372 |
|
| 2373 |
if (isset($color[4])) { |
| 2374 |
$rgb[4] = $color[4]; |
| 2375 |
} |
| 2376 |
|
| 2377 |
$color = $rgb; |
| 2378 |
} |
| 2379 |
|
| 2380 |
return $color; |
| 2381 |
} |
| 2382 |
|
| 2383 |
protected static $libAdjustColor = array( |
| 2384 |
'color', 'red', 'green', 'blue', |
| 2385 |
'hue', 'saturation', 'lightness', 'alpha' |
| 2386 |
); |
| 2387 |
protected function adjustColorHelper($base, $alter, $i) |
| 2388 |
{ |
| 2389 |
return $base += $alter; |
| 2390 |
} |
| 2391 |
protected function libAdjustColor($args) |
| 2392 |
{ |
| 2393 |
return $this->alterColor($args, 'adjustColorHelper'); |
| 2394 |
} |
| 2395 |
|
| 2396 |
protected static $libChangeColor = array( |
| 2397 |
'color', 'red', 'green', 'blue', |
| 2398 |
'hue', 'saturation', 'lightness', 'alpha' |
| 2399 |
); |
| 2400 |
protected function changeColorHelper($base, $alter, $i) |
| 2401 |
{ |
| 2402 |
return $alter; |
| 2403 |
} |
| 2404 |
protected function libChangeColor($args) |
| 2405 |
{ |
| 2406 |
return $this->alterColor($args, 'changeColorHelper'); |
| 2407 |
} |
| 2408 |
|
| 2409 |
protected static $libScaleColor = array( |
| 2410 |
'color', 'red', 'green', 'blue', |
| 2411 |
'hue', 'saturation', 'lightness', 'alpha' |
| 2412 |
); |
| 2413 |
protected function scaleColorHelper($base, $scale, $i) |
| 2414 |
{ |
| 2415 |
// 1,2,3 - rgb |
| 2416 |
// 4, 5, 6 - hsl |
| 2417 |
// 7 - a |
| 2418 |
switch ($i) { |
| 2419 |
case 1: |
| 2420 |
case 2: |
| 2421 |
case 3: |
| 2422 |
$max = 255; |
| 2423 |
break; |
| 2424 |
case 4: |
| 2425 |
$max = 360; |
| 2426 |
break; |
| 2427 |
case 7: |
| 2428 |
$max = 1; |
| 2429 |
break; |
| 2430 |
default: |
| 2431 |
$max = 100; |
| 2432 |
} |
| 2433 |
|
| 2434 |
$scale = $scale / 100; |
| 2435 |
|
| 2436 |
if ($scale < 0) { |
| 2437 |
return $base * $scale + $base; |
| 2438 |
} |
| 2439 |
|
| 2440 |
return ($max - $base) * $scale + $base; |
| 2441 |
} |
| 2442 |
protected function libScaleColor($args) |
| 2443 |
{ |
| 2444 |
return $this->alterColor($args, 'scaleColorHelper'); |
| 2445 |
} |
| 2446 |
|
| 2447 |
protected static $libIeHexStr = array('color'); |
| 2448 |
protected function libIeHexStr($args) |
| 2449 |
{ |
| 2450 |
$color = $this->coerceColor($args[0]); |
| 2451 |
$color[4] = isset($color[4]) ? round(255*$color[4]) : 255; |
| 2452 |
|
| 2453 |
return sprintf('#%02X%02X%02X%02X', $color[4], $color[1], $color[2], $color[3]); |
| 2454 |
} |
| 2455 |
|
| 2456 |
protected static $libRed = array('color'); |
| 2457 |
protected function libRed($args) |
| 2458 |
{ |
| 2459 |
$color = $this->coerceColor($args[0]); |
| 2460 |
|
| 2461 |
return $color[1]; |
| 2462 |
} |
| 2463 |
|
| 2464 |
protected static $libGreen = array('color'); |
| 2465 |
protected function libGreen($args) |
| 2466 |
{ |
| 2467 |
$color = $this->coerceColor($args[0]); |
| 2468 |
|
| 2469 |
return $color[2]; |
| 2470 |
} |
| 2471 |
|
| 2472 |
protected static $libBlue = array('color'); |
| 2473 |
protected function libBlue($args) |
| 2474 |
{ |
| 2475 |
$color = $this->coerceColor($args[0]); |
| 2476 |
|
| 2477 |
return $color[3]; |
| 2478 |
} |
| 2479 |
|
| 2480 |
protected static $libAlpha = array('color'); |
| 2481 |
protected function libAlpha($args) |
| 2482 |
{ |
| 2483 |
if ($color = $this->coerceColor($args[0])) { |
| 2484 |
return isset($color[4]) ? $color[4] : 1; |
| 2485 |
} |
| 2486 |
|
| 2487 |
// this might be the IE function, so return value unchanged |
| 2488 |
return null; |
| 2489 |
} |
| 2490 |
|
| 2491 |
protected static $libOpacity = array('color'); |
| 2492 |
protected function libOpacity($args) |
| 2493 |
{ |
| 2494 |
$value = $args[0]; |
| 2495 |
|
| 2496 |
if ($value[0] === 'number') { |
| 2497 |
return null; |
| 2498 |
} |
| 2499 |
|
| 2500 |
return $this->libAlpha($args); |
| 2501 |
} |
| 2502 |
|
| 2503 |
// mix two colors |
| 2504 |
protected static $libMix = array('color-1', 'color-2', 'weight'); |
| 2505 |
protected function libMix($args) |
| 2506 |
{ |
| 2507 |
list($first, $second, $weight) = $args; |
| 2508 |
$first = $this->assertColor($first); |
| 2509 |
$second = $this->assertColor($second); |
| 2510 |
|
| 2511 |
if (!isset($weight)) { |
| 2512 |
$weight = 0.5; |
| 2513 |
} else { |
| 2514 |
$weight = $this->coercePercent($weight); |
| 2515 |
} |
| 2516 |
|
| 2517 |
$firstAlpha = isset($first[4]) ? $first[4] : 1; |
| 2518 |
$secondAlpha = isset($second[4]) ? $second[4] : 1; |
| 2519 |
|
| 2520 |
$w = $weight * 2 - 1; |
| 2521 |
$a = $firstAlpha - $secondAlpha; |
| 2522 |
|
| 2523 |
$w1 = (($w * $a == -1 ? $w : ($w + $a)/(1 + $w * $a)) + 1) / 2.0; |
| 2524 |
$w2 = 1.0 - $w1; |
| 2525 |
|
| 2526 |
$new = array('color', |
| 2527 |
$w1 * $first[1] + $w2 * $second[1], |
| 2528 |
$w1 * $first[2] + $w2 * $second[2], |
| 2529 |
$w1 * $first[3] + $w2 * $second[3], |
| 2530 |
); |
| 2531 |
|
| 2532 |
if ($firstAlpha != 1.0 || $secondAlpha != 1.0) { |
| 2533 |
$new[] = $firstAlpha * $weight + $secondAlpha * ($weight - 1); |
| 2534 |
} |
| 2535 |
|
| 2536 |
return $this->fixColor($new); |
| 2537 |
} |
| 2538 |
|
| 2539 |
protected static $libHsl = array('hue', 'saturation', 'lightness'); |
| 2540 |
protected function libHsl($args) |
| 2541 |
{ |
| 2542 |
list($h, $s, $l) = $args; |
| 2543 |
|
| 2544 |
return $this->toRGB($h[1], $s[1], $l[1]); |
| 2545 |
} |
| 2546 |
|
| 2547 |
protected static $libHsla = array('hue', 'saturation', |
| 2548 |
'lightness', 'alpha'); |
| 2549 |
protected function libHsla($args) |
| 2550 |
{ |
| 2551 |
list($h, $s, $l, $a) = $args; |
| 2552 |
|
| 2553 |
$color = $this->toRGB($h[1], $s[1], $l[1]); |
| 2554 |
$color[4] = $a[1]; |
| 2555 |
|
| 2556 |
return $color; |
| 2557 |
} |
| 2558 |
|
| 2559 |
protected static $libHue = array('color'); |
| 2560 |
protected function libHue($args) |
| 2561 |
{ |
| 2562 |
$color = $this->assertColor($args[0]); |
| 2563 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2564 |
|
| 2565 |
return array('number', $hsl[1], 'deg'); |
| 2566 |
} |
| 2567 |
|
| 2568 |
protected static $libSaturation = array('color'); |
| 2569 |
protected function libSaturation($args) |
| 2570 |
{ |
| 2571 |
$color = $this->assertColor($args[0]); |
| 2572 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2573 |
|
| 2574 |
return array('number', $hsl[2], '%'); |
| 2575 |
} |
| 2576 |
|
| 2577 |
protected static $libLightness = array('color'); |
| 2578 |
protected function libLightness($args) |
| 2579 |
{ |
| 2580 |
$color = $this->assertColor($args[0]); |
| 2581 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2582 |
|
| 2583 |
return array('number', $hsl[3], '%'); |
| 2584 |
} |
| 2585 |
|
| 2586 |
protected function adjustHsl($color, $idx, $amount) |
| 2587 |
{ |
| 2588 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2589 |
$hsl[$idx] += $amount; |
| 2590 |
$out = $this->toRGB($hsl[1], $hsl[2], $hsl[3]); |
| 2591 |
|
| 2592 |
if (isset($color[4])) { |
| 2593 |
$out[4] = $color[4]; |
| 2594 |
} |
| 2595 |
|
| 2596 |
return $out; |
| 2597 |
} |
| 2598 |
|
| 2599 |
protected static $libAdjustHue = array('color', 'degrees'); |
| 2600 |
protected function libAdjustHue($args) |
| 2601 |
{ |
| 2602 |
$color = $this->assertColor($args[0]); |
| 2603 |
$degrees = $this->assertNumber($args[1]); |
| 2604 |
|
| 2605 |
return $this->adjustHsl($color, 1, $degrees); |
| 2606 |
} |
| 2607 |
|
| 2608 |
protected static $libLighten = array('color', 'amount'); |
| 2609 |
protected function libLighten($args) |
| 2610 |
{ |
| 2611 |
$color = $this->assertColor($args[0]); |
| 2612 |
$amount = 100*$this->coercePercent($args[1]); |
| 2613 |
|
| 2614 |
return $this->adjustHsl($color, 3, $amount); |
| 2615 |
} |
| 2616 |
|
| 2617 |
protected static $libDarken = array('color', 'amount'); |
| 2618 |
protected function libDarken($args) |
| 2619 |
{ |
| 2620 |
$color = $this->assertColor($args[0]); |
| 2621 |
$amount = 100*$this->coercePercent($args[1]); |
| 2622 |
|
| 2623 |
return $this->adjustHsl($color, 3, -$amount); |
| 2624 |
} |
| 2625 |
|
| 2626 |
protected static $libSaturate = array('color', 'amount'); |
| 2627 |
protected function libSaturate($args) |
| 2628 |
{ |
| 2629 |
$value = $args[0]; |
| 2630 |
|
| 2631 |
if ($value[0] === 'number') { |
| 2632 |
return null; |
| 2633 |
} |
| 2634 |
|
| 2635 |
$color = $this->assertColor($value); |
| 2636 |
$amount = 100*$this->coercePercent($args[1]); |
| 2637 |
|
| 2638 |
return $this->adjustHsl($color, 2, $amount); |
| 2639 |
} |
| 2640 |
|
| 2641 |
protected static $libDesaturate = array('color', 'amount'); |
| 2642 |
protected function libDesaturate($args) |
| 2643 |
{ |
| 2644 |
$color = $this->assertColor($args[0]); |
| 2645 |
$amount = 100*$this->coercePercent($args[1]); |
| 2646 |
|
| 2647 |
return $this->adjustHsl($color, 2, -$amount); |
| 2648 |
} |
| 2649 |
|
| 2650 |
protected static $libGrayscale = array('color'); |
| 2651 |
protected function libGrayscale($args) |
| 2652 |
{ |
| 2653 |
$value = $args[0]; |
| 2654 |
|
| 2655 |
if ($value[0] === 'number') { |
| 2656 |
return null; |
| 2657 |
} |
| 2658 |
|
| 2659 |
return $this->adjustHsl($this->assertColor($value), 2, -100); |
| 2660 |
} |
| 2661 |
|
| 2662 |
protected static $libComplement = array('color'); |
| 2663 |
protected function libComplement($args) |
| 2664 |
{ |
| 2665 |
return $this->adjustHsl($this->assertColor($args[0]), 1, 180); |
| 2666 |
} |
| 2667 |
|
| 2668 |
protected static $libInvert = array('color'); |
| 2669 |
protected function libInvert($args) |
| 2670 |
{ |
| 2671 |
$value = $args[0]; |
| 2672 |
|
| 2673 |
if ($value[0] === 'number') { |
| 2674 |
return null; |
| 2675 |
} |
| 2676 |
|
| 2677 |
$color = $this->assertColor($value); |
| 2678 |
$color[1] = 255 - $color[1]; |
| 2679 |
$color[2] = 255 - $color[2]; |
| 2680 |
$color[3] = 255 - $color[3]; |
| 2681 |
|
| 2682 |
return $color; |
| 2683 |
} |
| 2684 |
|
| 2685 |
// increases opacity by amount |
| 2686 |
protected static $libOpacify = array('color', 'amount'); |
| 2687 |
protected function libOpacify($args) |
| 2688 |
{ |
| 2689 |
$color = $this->assertColor($args[0]); |
| 2690 |
$amount = $this->coercePercent($args[1]); |
| 2691 |
|
| 2692 |
$color[4] = (isset($color[4]) ? $color[4] : 1) + $amount; |
| 2693 |
$color[4] = min(1, max(0, $color[4])); |
| 2694 |
|
| 2695 |
return $color; |
| 2696 |
} |
| 2697 |
|
| 2698 |
protected static $libFadeIn = array('color', 'amount'); |
| 2699 |
protected function libFadeIn($args) |
| 2700 |
{ |
| 2701 |
return $this->libOpacify($args); |
| 2702 |
} |
| 2703 |
|
| 2704 |
// decreases opacity by amount |
| 2705 |
protected static $libTransparentize = array('color', 'amount'); |
| 2706 |
protected function libTransparentize($args) |
| 2707 |
{ |
| 2708 |
$color = $this->assertColor($args[0]); |
| 2709 |
$amount = $this->coercePercent($args[1]); |
| 2710 |
|
| 2711 |
$color[4] = (isset($color[4]) ? $color[4] : 1) - $amount; |
| 2712 |
$color[4] = min(1, max(0, $color[4])); |
| 2713 |
|
| 2714 |
return $color; |
| 2715 |
} |
| 2716 |
|
| 2717 |
protected static $libFadeOut = array('color', 'amount'); |
| 2718 |
protected function libFadeOut($args) |
| 2719 |
{ |
| 2720 |
return $this->libTransparentize($args); |
| 2721 |
} |
| 2722 |
|
| 2723 |
protected static $libUnquote = array('string'); |
| 2724 |
protected function libUnquote($args) |
| 2725 |
{ |
| 2726 |
$str = $args[0]; |
| 2727 |
|
| 2728 |
if ($str[0] == 'string') { |
| 2729 |
$str[1] = ''; |
| 2730 |
} |
| 2731 |
|
| 2732 |
return $str; |
| 2733 |
} |
| 2734 |
|
| 2735 |
protected static $libQuote = array('string'); |
| 2736 |
protected function libQuote($args) |
| 2737 |
{ |
| 2738 |
$value = $args[0]; |
| 2739 |
|
| 2740 |
if ($value[0] == 'string' && !empty($value[1])) { |
| 2741 |
return $value; |
| 2742 |
} |
| 2743 |
|
| 2744 |
return array('string', '"', array($value)); |
| 2745 |
} |
| 2746 |
|
| 2747 |
protected static $libPercentage = array('value'); |
| 2748 |
protected function libPercentage($args) |
| 2749 |
{ |
| 2750 |
return array('number', |
| 2751 |
$this->coercePercent($args[0]) * 100, |
| 2752 |
'%'); |
| 2753 |
} |
| 2754 |
|
| 2755 |
protected static $libRound = array('value'); |
| 2756 |
protected function libRound($args) |
| 2757 |
{ |
| 2758 |
$num = $args[0]; |
| 2759 |
$num[1] = round($num[1]); |
| 2760 |
|
| 2761 |
return $num; |
| 2762 |
} |
| 2763 |
|
| 2764 |
protected static $libFloor = array('value'); |
| 2765 |
protected function libFloor($args) |
| 2766 |
{ |
| 2767 |
$num = $args[0]; |
| 2768 |
$num[1] = floor($num[1]); |
| 2769 |
|
| 2770 |
return $num; |
| 2771 |
} |
| 2772 |
|
| 2773 |
protected static $libCeil = array('value'); |
| 2774 |
protected function libCeil($args) |
| 2775 |
{ |
| 2776 |
$num = $args[0]; |
| 2777 |
$num[1] = ceil($num[1]); |
| 2778 |
|
| 2779 |
return $num; |
| 2780 |
} |
| 2781 |
|
| 2782 |
protected static $libAbs = array('value'); |
| 2783 |
protected function libAbs($args) |
| 2784 |
{ |
| 2785 |
$num = $args[0]; |
| 2786 |
$num[1] = abs($num[1]); |
| 2787 |
|
| 2788 |
return $num; |
| 2789 |
} |
| 2790 |
|
| 2791 |
protected function libMin($args) |
| 2792 |
{ |
| 2793 |
$numbers = $this->getNormalizedNumbers($args); |
| 2794 |
$min = null; |
| 2795 |
|
| 2796 |
foreach ($numbers as $key => $number) { |
| 2797 |
if (null === $min || $number[1] <= $min[1]) { |
| 2798 |
$min = array($key, $number[1]); |
| 2799 |
} |
| 2800 |
} |
| 2801 |
|
| 2802 |
return $args[$min[0]]; |
| 2803 |
} |
| 2804 |
|
| 2805 |
protected function libMax($args) |
| 2806 |
{ |
| 2807 |
$numbers = $this->getNormalizedNumbers($args); |
| 2808 |
$max = null; |
| 2809 |
|
| 2810 |
foreach ($numbers as $key => $number) { |
| 2811 |
if (null === $max || $number[1] >= $max[1]) { |
| 2812 |
$max = array($key, $number[1]); |
| 2813 |
} |
| 2814 |
} |
| 2815 |
|
| 2816 |
return $args[$max[0]]; |
| 2817 |
} |
| 2818 |
|
| 2819 |
protected function getNormalizedNumbers($args) |
| 2820 |
{ |
| 2821 |
$unit = null; |
| 2822 |
$originalUnit = null; |
| 2823 |
$numbers = array(); |
| 2824 |
|
| 2825 |
foreach ($args as $key => $item) { |
| 2826 |
if ('number' != $item[0]) { |
| 2827 |
$this->throwError('%s is not a number', $item[0]); |
| 2828 |
} |
| 2829 |
|
| 2830 |
$number = $this->normalizeNumber($item); |
| 2831 |
|
| 2832 |
if (null === $unit) { |
| 2833 |
$unit = $number[2]; |
| 2834 |
$originalUnit = $item[2]; |
| 2835 |
} elseif ($unit !== $number[2]) { |
| 2836 |
$this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item[2]); |
| 2837 |
} |
| 2838 |
|
| 2839 |
$numbers[$key] = $number; |
| 2840 |
} |
| 2841 |
|
| 2842 |
return $numbers; |
| 2843 |
} |
| 2844 |
|
| 2845 |
protected static $libLength = array('list'); |
| 2846 |
protected function libLength($args) |
| 2847 |
{ |
| 2848 |
$list = $this->coerceList($args[0]); |
| 2849 |
|
| 2850 |
return count($list[2]); |
| 2851 |
} |
| 2852 |
|
| 2853 |
protected static $libNth = array('list', 'n'); |
| 2854 |
protected function libNth($args) |
| 2855 |
{ |
| 2856 |
$list = $this->coerceList($args[0]); |
| 2857 |
$n = $this->assertNumber($args[1]) - 1; |
| 2858 |
|
| 2859 |
return isset($list[2][$n]) ? $list[2][$n] : self::$defaultValue; |
| 2860 |
} |
| 2861 |
|
| 2862 |
protected function listSeparatorForJoin($list1, $sep) |
| 2863 |
{ |
| 2864 |
if (!isset($sep)) { |
| 2865 |
return $list1[1]; |
| 2866 |
} |
| 2867 |
|
| 2868 |
switch ($this->compileValue($sep)) { |
| 2869 |
case 'comma': |
| 2870 |
return ','; |
| 2871 |
case 'space': |
| 2872 |
return ''; |
| 2873 |
default: |
| 2874 |
return $list1[1]; |
| 2875 |
} |
| 2876 |
} |
| 2877 |
|
| 2878 |
protected static $libJoin = array('list1', 'list2', 'separator'); |
| 2879 |
protected function libJoin($args) |
| 2880 |
{ |
| 2881 |
list($list1, $list2, $sep) = $args; |
| 2882 |
|
| 2883 |
$list1 = $this->coerceList($list1, ' '); |
| 2884 |
$list2 = $this->coerceList($list2, ' '); |
| 2885 |
$sep = $this->listSeparatorForJoin($list1, $sep); |
| 2886 |
|
| 2887 |
return array('list', $sep, array_merge($list1[2], $list2[2])); |
| 2888 |
} |
| 2889 |
|
| 2890 |
protected static $libAppend = array('list', 'val', 'separator'); |
| 2891 |
protected function libAppend($args) |
| 2892 |
{ |
| 2893 |
list($list1, $value, $sep) = $args; |
| 2894 |
|
| 2895 |
$list1 = $this->coerceList($list1, ' '); |
| 2896 |
$sep = $this->listSeparatorForJoin($list1, $sep); |
| 2897 |
|
| 2898 |
return array('list', $sep, array_merge($list1[2], array($value))); |
| 2899 |
} |
| 2900 |
|
| 2901 |
protected function libZip($args) |
| 2902 |
{ |
| 2903 |
foreach ($args as $arg) { |
| 2904 |
$this->assertList($arg); |
| 2905 |
} |
| 2906 |
|
| 2907 |
$lists = array(); |
| 2908 |
$firstList = array_shift($args); |
| 2909 |
|
| 2910 |
foreach ($firstList[2] as $key => $item) { |
| 2911 |
$list = array('list', '', array($item)); |
| 2912 |
|
| 2913 |
foreach ($args as $arg) { |
| 2914 |
if (isset($arg[2][$key])) { |
| 2915 |
$list[2][] = $arg[2][$key]; |
| 2916 |
} else { |
| 2917 |
break 2; |
| 2918 |
} |
| 2919 |
} |
| 2920 |
$lists[] = $list; |
| 2921 |
} |
| 2922 |
|
| 2923 |
return array('list', ',', $lists); |
| 2924 |
} |
| 2925 |
|
| 2926 |
protected static $libTypeOf = array('value'); |
| 2927 |
protected function libTypeOf($args) |
| 2928 |
{ |
| 2929 |
$value = $args[0]; |
| 2930 |
|
| 2931 |
switch ($value[0]) { |
| 2932 |
case 'keyword': |
| 2933 |
if ($value == self::$true || $value == self::$false) { |
| 2934 |
return 'bool'; |
| 2935 |
} |
| 2936 |
|
| 2937 |
if ($this->coerceColor($value)) { |
| 2938 |
return 'color'; |
| 2939 |
} |
| 2940 |
|
| 2941 |
return 'string'; |
| 2942 |
default: |
| 2943 |
return $value[0]; |
| 2944 |
} |
| 2945 |
} |
| 2946 |
|
| 2947 |
protected static $libUnit = array('number'); |
| 2948 |
protected function libUnit($args) |
| 2949 |
{ |
| 2950 |
$num = $args[0]; |
| 2951 |
|
| 2952 |
if ($num[0] == 'number') { |
| 2953 |
return array('string', '"', array($num[2])); |
| 2954 |
} |
| 2955 |
|
| 2956 |
return ''; |
| 2957 |
} |
| 2958 |
|
| 2959 |
protected static $libUnitless = array('number'); |
| 2960 |
protected function libUnitless($args) |
| 2961 |
{ |
| 2962 |
$value = $args[0]; |
| 2963 |
|
| 2964 |
return $value[0] == 'number' && empty($value[2]); |
| 2965 |
} |
| 2966 |
|
| 2967 |
protected static $libComparable = array('number-1', 'number-2'); |
| 2968 |
protected function libComparable($args) |
| 2969 |
{ |
| 2970 |
list($number1, $number2) = $args; |
| 2971 |
|
| 2972 |
if (!isset($number1[0]) || $number1[0] != 'number' || !isset($number2[0]) || $number2[0] != 'number') { |
| 2973 |
$this->throwError('Invalid argument(s) for "comparable"'); |
| 2974 |
} |
| 2975 |
|
| 2976 |
$number1 = $this->normalizeNumber($number1); |
| 2977 |
$number2 = $this->normalizeNumber($number2); |
| 2978 |
|
| 2979 |
return $number1[2] == $number2[2] || $number1[2] == '' || $number2[2] == ''; |
| 2980 |
} |
| 2981 |
|
| 2982 |
/** |
| 2983 |
* Workaround IE7's content counter bug. |
| 2984 |
* |
| 2985 |
* @param array $args |
| 2986 |
*/ |
| 2987 |
protected function libCounter($args) |
| 2988 |
{ |
| 2989 |
$list = array_map(array($this, 'compileValue'), $args); |
| 2990 |
|
| 2991 |
return array('string', '', array('counter(' . implode(',', $list) . ')')); |
| 2992 |
} |
| 2993 |
|
| 2994 |
public function throwError($msg = null) |
| 2995 |
{ |
| 2996 |
if (func_num_args() > 1) { |
| 2997 |
$msg = call_user_func_array('sprintf', func_get_args()); |
| 2998 |
} |
| 2999 |
|
| 3000 |
if ($this->sourcePos >= 0 && isset($this->sourceParser)) { |
| 3001 |
$this->sourceParser->throwParseError($msg, $this->sourcePos); |
| 3002 |
} |
| 3003 |
|
| 3004 |
throw new \Exception($msg); |
| 3005 |
} |
| 3006 |
} |
| 3007 |
|
