| 1 |
<?php |
| 2 |
/** |
| 3 |
* SCSS compiler written in PHP |
| 4 |
* |
| 5 |
* @copyright 2012-2013 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 |
/** |
| 14 |
* The scss compiler and parser. |
| 15 |
* |
| 16 |
* Converting SCSS to CSS is a three stage process. The incoming file is parsed |
| 17 |
* by `scss_parser` into a syntax tree, then it is compiled into another tree |
| 18 |
* representing the CSS structure by `scssc`. The CSS tree is fed into a |
| 19 |
* formatter, like `scss_formatter` which then outputs CSS as a string. |
| 20 |
* |
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* During the first compile, all values are *reduced*, which means that their |
| 22 |
* types are brought to the lowest form before being dump as strings. This |
| 23 |
* handles math equations, variable dereferences, and the like. |
| 24 |
* |
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* The `parse` function of `scssc` is the entry point. |
| 26 |
* |
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* In summary: |
| 28 |
* |
| 29 |
* The `scssc` class creates an instance of the parser, feeds it SCSS code, |
| 30 |
* then transforms the resulting tree to a CSS tree. This class also holds the |
| 31 |
* evaluation context, such as all available mixins and variables at any given |
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* time. |
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* |
| 34 |
* The `scss_parser` class is only concerned with parsing its input. |
| 35 |
* |
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* The `scss_formatter` takes a CSS tree, and dumps it to a formatted string, |
| 37 |
* handling things like indentation. |
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*/ |
| 39 |
|
| 40 |
/** |
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* SCSS compiler |
| 42 |
* |
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* @author Leaf Corcoran <leafot@gmail.com> |
| 44 |
*/ |
| 45 |
class scssc { |
| 46 |
static public $VERSION = 'v0.0.12'; |
| 47 |
|
| 48 |
static protected $operatorNames = array( |
| 49 |
'+' => "add", |
| 50 |
'-' => "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", |
| 61 |
'>=' => "gte", |
| 62 |
); |
| 63 |
|
| 64 |
static protected $namespaces = array( |
| 65 |
"special" => "%", |
| 66 |
"mixin" => "@", |
| 67 |
"function" => "^", |
| 68 |
); |
| 69 |
|
| 70 |
static protected $unitTable = array( |
| 71 |
"in" => array( |
| 72 |
"in" => 1, |
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"pt" => 72, |
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"pc" => 6, |
| 75 |
"cm" => 2.54, |
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"mm" => 25.4, |
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"px" => 96, |
| 78 |
) |
| 79 |
); |
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|
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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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|
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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(""); |
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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; |
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|
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protected $formatter = "scss_formatter_nested"; |
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|
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/** |
| 99 |
* Compile scss |
| 100 |
* |
| 101 |
* @param string $code |
| 102 |
* @param string $name |
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* |
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* @return string |
| 105 |
*/ |
| 106 |
public function compile($code, $name = null) |
| 107 |
{ |
| 108 |
try { |
| 109 |
$this->indentLevel = -1; |
| 110 |
$this->commentsSeen = array(); |
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$this->extends = array(); |
| 112 |
$this->extendsMap = array(); |
| 113 |
$this->parsedFiles = array(); |
| 114 |
$this->env = null; |
| 115 |
$this->scope = null; |
| 116 |
|
| 117 |
$locale = setlocale(LC_NUMERIC, 0); |
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setlocale(LC_NUMERIC, "C"); |
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|
| 120 |
$this->parser = new scss_parser($name); |
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|
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$tree = $this->parser->parse($code); |
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|
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$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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|
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setlocale(LC_NUMERIC, $locale); |
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|
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return $out; |
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} catch(Exception $e) {} |
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|
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} |
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|
| 140 |
protected function isSelfExtend($target, $origin) { |
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foreach ($origin as $sel) { |
| 142 |
if (in_array($target, $sel)) { |
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return true; |
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} |
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} |
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|
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return false; |
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} |
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|
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protected function pushExtends($target, $origin) { |
| 151 |
if ($this->isSelfExtend($target, $origin)) { |
| 152 |
return; |
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} |
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|
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$i = count($this->extends); |
| 156 |
$this->extends[] = array($target, $origin); |
| 157 |
|
| 158 |
foreach ($target as $part) { |
| 159 |
if (isset($this->extendsMap[$part])) { |
| 160 |
$this->extendsMap[$part][] = $i; |
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} else { |
| 162 |
$this->extendsMap[$part] = array($i); |
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} |
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} |
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} |
| 166 |
|
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protected function makeOutputBlock($type, $selectors = null) { |
| 168 |
$out = new stdClass; |
| 169 |
$out->type = $type; |
| 170 |
$out->lines = array(); |
| 171 |
$out->children = array(); |
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$out->parent = $this->scope; |
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$out->selectors = $selectors; |
| 174 |
$out->depth = $this->env->depth; |
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|
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return $out; |
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} |
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|
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protected function matchExtendsSingle($single, &$outOrigin) { |
| 180 |
$counts = array(); |
| 181 |
foreach ($single as $part) { |
| 182 |
if (!is_string($part)) return false; // hmm |
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|
| 184 |
if (isset($this->extendsMap[$part])) { |
| 185 |
foreach ($this->extendsMap[$part] as $idx) { |
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$counts[$idx] = |
| 187 |
isset($counts[$idx]) ? $counts[$idx] + 1 : 1; |
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} |
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} |
| 190 |
} |
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|
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$outOrigin = array(); |
| 193 |
$found = false; |
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|
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foreach ($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)) continue; |
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|
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// check if target is subset of single |
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if (array_diff(array_intersect($single, $target), $target)) continue; |
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|
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$rem = array_diff($single, $target); |
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|
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foreach ($origin as $j => $new) { |
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// prevent infinite loop when target extends itself |
| 208 |
foreach ($new as $new_selector) { |
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if (!array_diff($single, $new_selector)) { |
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continue 2; |
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} |
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} |
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|
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$origin[$j][count($origin[$j]) - 1] = $this->combineSelectorSingle(end($new), $rem); |
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} |
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|
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$outOrigin = array_merge($outOrigin, $origin); |
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|
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$found = true; |
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} |
| 221 |
|
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return $found; |
| 223 |
} |
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|
| 225 |
protected function combineSelectorSingle($base, $other) { |
| 226 |
$tag = null; |
| 227 |
$out = array(); |
| 228 |
|
| 229 |
foreach (array($base, $other) as $single) { |
| 230 |
foreach ($single as $part) { |
| 231 |
if (preg_match('/^[^\[.#:]/', $part)) { |
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$tag = $part; |
| 233 |
} else { |
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$out[] = $part; |
| 235 |
} |
| 236 |
} |
| 237 |
} |
| 238 |
|
| 239 |
if ($tag) { |
| 240 |
array_unshift($out, $tag); |
| 241 |
} |
| 242 |
|
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return $out; |
| 244 |
} |
| 245 |
|
| 246 |
protected function matchExtends($selector, &$out, $from = 0, $initial=true) { |
| 247 |
foreach ($selector as $i => $part) { |
| 248 |
if ($i < $from) continue; |
| 249 |
|
| 250 |
if ($this->matchExtendsSingle($part, $origin)) { |
| 251 |
$before = array_slice($selector, 0, $i); |
| 252 |
$after = array_slice($selector, $i + 1); |
| 253 |
|
| 254 |
foreach ($origin as $new) { |
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$k = 0; |
| 256 |
|
| 257 |
// remove shared parts |
| 258 |
if ($initial) { |
| 259 |
foreach ($before as $k => $val) { |
| 260 |
if (!isset($new[$k]) || $val != $new[$k]) { |
| 261 |
break; |
| 262 |
} |
| 263 |
} |
| 264 |
} |
| 265 |
|
| 266 |
$result = array_merge( |
| 267 |
$before, |
| 268 |
$k > 0 ? array_slice($new, $k) : $new, |
| 269 |
$after); |
| 270 |
|
| 271 |
|
| 272 |
if ($result == $selector) continue; |
| 273 |
$out[] = $result; |
| 274 |
|
| 275 |
// recursively check for more matches |
| 276 |
$this->matchExtends($result, $out, $i, false); |
| 277 |
|
| 278 |
// selector sequence merging |
| 279 |
if (!empty($before) && count($new) > 1) { |
| 280 |
$result2 = array_merge( |
| 281 |
array_slice($new, 0, -1), |
| 282 |
$k > 0 ? array_slice($before, $k) : $before, |
| 283 |
array_slice($new, -1), |
| 284 |
$after); |
| 285 |
|
| 286 |
$out[] = $result2; |
| 287 |
} |
| 288 |
} |
| 289 |
} |
| 290 |
} |
| 291 |
} |
| 292 |
|
| 293 |
protected function flattenSelectors($block, $parentKey = null) { |
| 294 |
if ($block->selectors) { |
| 295 |
$selectors = array(); |
| 296 |
foreach ($block->selectors as $s) { |
| 297 |
$selectors[] = $s; |
| 298 |
if (!is_array($s)) continue; |
| 299 |
// check extends |
| 300 |
if (!empty($this->extendsMap)) { |
| 301 |
$this->matchExtends($s, $selectors); |
| 302 |
} |
| 303 |
} |
| 304 |
|
| 305 |
$block->selectors = array(); |
| 306 |
$placeholderSelector = false; |
| 307 |
foreach ($selectors as $selector) { |
| 308 |
if ($this->hasSelectorPlaceholder($selector)) { |
| 309 |
$placeholderSelector = true; |
| 310 |
continue; |
| 311 |
} |
| 312 |
$block->selectors[] = $this->compileSelector($selector); |
| 313 |
} |
| 314 |
|
| 315 |
if ($placeholderSelector && 0 == count($block->selectors) && null !== $parentKey) { |
| 316 |
unset($block->parent->children[$parentKey]); |
| 317 |
return; |
| 318 |
} |
| 319 |
} |
| 320 |
|
| 321 |
foreach ($block->children as $key => $child) { |
| 322 |
$this->flattenSelectors($child, $key); |
| 323 |
} |
| 324 |
} |
| 325 |
|
| 326 |
protected function compileRoot($rootBlock) |
| 327 |
{ |
| 328 |
$this->scope = $this->makeOutputBlock('root'); |
| 329 |
|
| 330 |
$this->compileChildren($rootBlock->children, $this->scope); |
| 331 |
$this->flattenSelectors($this->scope); |
| 332 |
} |
| 333 |
|
| 334 |
protected function compileMedia($media) { |
| 335 |
$this->pushEnv($media); |
| 336 |
|
| 337 |
$mediaQuery = $this->compileMediaQuery($this->multiplyMedia($this->env)); |
| 338 |
|
| 339 |
if (!empty($mediaQuery)) { |
| 340 |
|
| 341 |
$this->scope = $this->makeOutputBlock("media", array($mediaQuery)); |
| 342 |
|
| 343 |
$parentScope = $this->mediaParent($this->scope); |
| 344 |
|
| 345 |
$parentScope->children[] = $this->scope; |
| 346 |
|
| 347 |
// top level properties in a media cause it to be wrapped |
| 348 |
$needsWrap = false; |
| 349 |
foreach ($media->children as $child) { |
| 350 |
$type = $child[0]; |
| 351 |
if ($type !== 'block' && $type !== 'media' && $type !== 'directive') { |
| 352 |
$needsWrap = true; |
| 353 |
break; |
| 354 |
} |
| 355 |
} |
| 356 |
|
| 357 |
if ($needsWrap) { |
| 358 |
$wrapped = (object)array( |
| 359 |
"selectors" => array(), |
| 360 |
"children" => $media->children |
| 361 |
); |
| 362 |
$media->children = array(array("block", $wrapped)); |
| 363 |
} |
| 364 |
|
| 365 |
$this->compileChildren($media->children, $this->scope); |
| 366 |
|
| 367 |
$this->scope = $this->scope->parent; |
| 368 |
} |
| 369 |
|
| 370 |
$this->popEnv(); |
| 371 |
} |
| 372 |
|
| 373 |
protected function mediaParent($scope) { |
| 374 |
while (!empty($scope->parent)) { |
| 375 |
if (!empty($scope->type) && $scope->type != "media") { |
| 376 |
break; |
| 377 |
} |
| 378 |
$scope = $scope->parent; |
| 379 |
} |
| 380 |
|
| 381 |
return $scope; |
| 382 |
} |
| 383 |
|
| 384 |
// TODO refactor compileNestedBlock and compileMedia into same thing |
| 385 |
protected function compileNestedBlock($block, $selectors) { |
| 386 |
$this->pushEnv($block); |
| 387 |
|
| 388 |
$this->scope = $this->makeOutputBlock($block->type, $selectors); |
| 389 |
$this->scope->parent->children[] = $this->scope; |
| 390 |
$this->compileChildren($block->children, $this->scope); |
| 391 |
|
| 392 |
$this->scope = $this->scope->parent; |
| 393 |
$this->popEnv(); |
| 394 |
} |
| 395 |
|
| 396 |
/** |
| 397 |
* Recursively compiles a block. |
| 398 |
* |
| 399 |
* A block is analogous to a CSS block in most cases. A single SCSS document |
| 400 |
* is encapsulated in a block when parsed, but it does not have parent tags |
| 401 |
* so all of its children appear on the root level when compiled. |
| 402 |
* |
| 403 |
* Blocks are made up of selectors and children. |
| 404 |
* |
| 405 |
* The children of a block are just all the blocks that are defined within. |
| 406 |
* |
| 407 |
* Compiling the block involves pushing a fresh environment on the stack, |
| 408 |
* and iterating through the props, compiling each one. |
| 409 |
* |
| 410 |
* @see scss::compileChild() |
| 411 |
* |
| 412 |
* @param \StdClass $block |
| 413 |
*/ |
| 414 |
protected function compileBlock($block) { |
| 415 |
$env = $this->pushEnv($block); |
| 416 |
|
| 417 |
$env->selectors = |
| 418 |
array_map(array($this, "evalSelector"), $block->selectors); |
| 419 |
|
| 420 |
$out = $this->makeOutputBlock(null, $this->multiplySelectors($env)); |
| 421 |
$this->scope->children[] = $out; |
| 422 |
$this->compileChildren($block->children, $out); |
| 423 |
|
| 424 |
$this->popEnv(); |
| 425 |
} |
| 426 |
|
| 427 |
// joins together .classes and #ids |
| 428 |
protected function flattenSelectorSingle($single) { |
| 429 |
$joined = array(); |
| 430 |
foreach ($single as $part) { |
| 431 |
if (empty($joined) || |
| 432 |
!is_string($part) || |
| 433 |
preg_match('/[\[.:#%]/', $part)) |
| 434 |
{ |
| 435 |
$joined[] = $part; |
| 436 |
continue; |
| 437 |
} |
| 438 |
|
| 439 |
if (is_array(end($joined))) { |
| 440 |
$joined[] = $part; |
| 441 |
} else { |
| 442 |
$joined[count($joined) - 1] .= $part; |
| 443 |
} |
| 444 |
} |
| 445 |
|
| 446 |
return $joined; |
| 447 |
} |
| 448 |
|
| 449 |
// replaces all the interpolates |
| 450 |
protected function evalSelector($selector) { |
| 451 |
return array_map(array($this, "evalSelectorPart"), $selector); |
| 452 |
} |
| 453 |
|
| 454 |
protected function evalSelectorPart($piece) { |
| 455 |
foreach ($piece as &$p) { |
| 456 |
if (!is_array($p)) continue; |
| 457 |
|
| 458 |
switch ($p[0]) { |
| 459 |
case "interpolate": |
| 460 |
$p = $this->compileValue($p); |
| 461 |
break; |
| 462 |
case "string": |
| 463 |
$p = $this->compileValue($p); |
| 464 |
break; |
| 465 |
} |
| 466 |
} |
| 467 |
|
| 468 |
return $this->flattenSelectorSingle($piece); |
| 469 |
} |
| 470 |
|
| 471 |
// compiles to string |
| 472 |
// self(&) should have been replaced by now |
| 473 |
protected function compileSelector($selector) { |
| 474 |
if (!is_array($selector)) return $selector; // media and the like |
| 475 |
|
| 476 |
return implode(" ", array_map( |
| 477 |
array($this, "compileSelectorPart"), $selector)); |
| 478 |
} |
| 479 |
|
| 480 |
protected function compileSelectorPart($piece) { |
| 481 |
foreach ($piece as &$p) { |
| 482 |
if (!is_array($p)) continue; |
| 483 |
|
| 484 |
switch ($p[0]) { |
| 485 |
case "self": |
| 486 |
$p = "&"; |
| 487 |
break; |
| 488 |
default: |
| 489 |
$p = $this->compileValue($p); |
| 490 |
break; |
| 491 |
} |
| 492 |
} |
| 493 |
|
| 494 |
return implode($piece); |
| 495 |
} |
| 496 |
|
| 497 |
protected function hasSelectorPlaceholder($selector) |
| 498 |
{ |
| 499 |
if (!is_array($selector)) return false; |
| 500 |
|
| 501 |
foreach ($selector as $parts) { |
| 502 |
foreach ($parts as $part) { |
| 503 |
if ('%' == $part[0]) { |
| 504 |
return true; |
| 505 |
} |
| 506 |
} |
| 507 |
} |
| 508 |
|
| 509 |
return false; |
| 510 |
} |
| 511 |
|
| 512 |
protected function compileChildren($stms, $out) { |
| 513 |
foreach ($stms as $stm) { |
| 514 |
$ret = $this->compileChild($stm, $out); |
| 515 |
if (isset($ret)) return $ret; |
| 516 |
} |
| 517 |
} |
| 518 |
|
| 519 |
protected function compileMediaQuery($queryList) { |
| 520 |
$out = "@media"; |
| 521 |
$first = true; |
| 522 |
foreach ($queryList as $query){ |
| 523 |
$type = null; |
| 524 |
$parts = array(); |
| 525 |
foreach ($query as $q) { |
| 526 |
switch ($q[0]) { |
| 527 |
case "mediaType": |
| 528 |
if ($type) { |
| 529 |
$type = $this->mergeMediaTypes($type, array_map(array($this, "compileValue"), array_slice($q, 1))); |
| 530 |
if (empty($type)) { // merge failed |
| 531 |
return null; |
| 532 |
} |
| 533 |
} else { |
| 534 |
$type = array_map(array($this, "compileValue"), array_slice($q, 1)); |
| 535 |
} |
| 536 |
break; |
| 537 |
case "mediaExp": |
| 538 |
if (isset($q[2])) { |
| 539 |
$parts[] = "(". $this->compileValue($q[1]) . $this->formatter->assignSeparator . $this->compileValue($q[2]) . ")"; |
| 540 |
} else { |
| 541 |
$parts[] = "(" . $this->compileValue($q[1]) . ")"; |
| 542 |
} |
| 543 |
break; |
| 544 |
} |
| 545 |
} |
| 546 |
if ($type) { |
| 547 |
array_unshift($parts, implode(' ', array_filter($type))); |
| 548 |
} |
| 549 |
if (!empty($parts)) { |
| 550 |
if ($first) { |
| 551 |
$first = false; |
| 552 |
$out .= " "; |
| 553 |
} else { |
| 554 |
$out .= $this->formatter->tagSeparator; |
| 555 |
} |
| 556 |
$out .= implode(" and ", $parts); |
| 557 |
} |
| 558 |
} |
| 559 |
return $out; |
| 560 |
} |
| 561 |
|
| 562 |
protected function mergeMediaTypes($type1, $type2) { |
| 563 |
if (empty($type1)) { |
| 564 |
return $type2; |
| 565 |
} |
| 566 |
if (empty($type2)) { |
| 567 |
return $type1; |
| 568 |
} |
| 569 |
$m1 = ''; |
| 570 |
$t1 = ''; |
| 571 |
if (count($type1) > 1) { |
| 572 |
$m1= strtolower($type1[0]); |
| 573 |
$t1= strtolower($type1[1]); |
| 574 |
} else { |
| 575 |
$t1 = strtolower($type1[0]); |
| 576 |
} |
| 577 |
$m2 = ''; |
| 578 |
$t2 = ''; |
| 579 |
if (count($type2) > 1) { |
| 580 |
$m2 = strtolower($type2[0]); |
| 581 |
$t2 = strtolower($type2[1]); |
| 582 |
} else { |
| 583 |
$t2 = strtolower($type2[0]); |
| 584 |
} |
| 585 |
if (($m1 == 'not') ^ ($m2 == 'not')) { |
| 586 |
if ($t1 == $t2) { |
| 587 |
return null; |
| 588 |
} |
| 589 |
return array( |
| 590 |
$m1 == 'not' ? $m2 : $m1, |
| 591 |
$m1 == 'not' ? $t2 : $t1 |
| 592 |
); |
| 593 |
} elseif ($m1 == 'not' && $m2 == 'not') { |
| 594 |
# CSS has no way of representing "neither screen nor print" |
| 595 |
if ($t1 != $t2) { |
| 596 |
return null; |
| 597 |
} |
| 598 |
return array('not', $t1); |
| 599 |
} elseif ($t1 != $t2) { |
| 600 |
return null; |
| 601 |
} else { // t1 == t2, neither m1 nor m2 are "not" |
| 602 |
return array(empty($m1)? $m2 : $m1, $t1); |
| 603 |
} |
| 604 |
} |
| 605 |
|
| 606 |
// returns true if the value was something that could be imported |
| 607 |
protected function compileImport($rawPath, $out) { |
| 608 |
if ($rawPath[0] == "string") { |
| 609 |
$path = $this->compileStringContent($rawPath); |
| 610 |
if ($path = $this->findImport($path)) { |
| 611 |
$this->importFile($path, $out); |
| 612 |
return true; |
| 613 |
} |
| 614 |
return false; |
| 615 |
} |
| 616 |
if ($rawPath[0] == "list") { |
| 617 |
// handle a list of strings |
| 618 |
if (count($rawPath[2]) == 0) return false; |
| 619 |
foreach ($rawPath[2] as $path) { |
| 620 |
if ($path[0] != "string") return false; |
| 621 |
} |
| 622 |
|
| 623 |
foreach ($rawPath[2] as $path) { |
| 624 |
$this->compileImport($path, $out); |
| 625 |
} |
| 626 |
|
| 627 |
return true; |
| 628 |
} |
| 629 |
|
| 630 |
return false; |
| 631 |
} |
| 632 |
|
| 633 |
// return a value to halt execution |
| 634 |
protected function compileChild($child, $out) { |
| 635 |
$this->sourcePos = isset($child[-1]) ? $child[-1] : -1; |
| 636 |
$this->sourceParser = isset($child[-2]) ? $child[-2] : $this->parser; |
| 637 |
|
| 638 |
switch ($child[0]) { |
| 639 |
case "import": |
| 640 |
list(,$rawPath) = $child; |
| 641 |
$rawPath = $this->reduce($rawPath); |
| 642 |
if (!$this->compileImport($rawPath, $out)) { |
| 643 |
$out->lines[] = "@import " . $this->compileValue($rawPath) . ";"; |
| 644 |
} |
| 645 |
break; |
| 646 |
case "directive": |
| 647 |
list(, $directive) = $child; |
| 648 |
$s = "@" . $directive->name; |
| 649 |
if (!empty($directive->value)) { |
| 650 |
$s .= " " . $this->compileValue($directive->value); |
| 651 |
} |
| 652 |
$this->compileNestedBlock($directive, array($s)); |
| 653 |
break; |
| 654 |
case "media": |
| 655 |
$this->compileMedia($child[1]); |
| 656 |
break; |
| 657 |
case "block": |
| 658 |
$this->compileBlock($child[1]); |
| 659 |
break; |
| 660 |
case "charset": |
| 661 |
$out->lines[] = "@charset ".$this->compileValue($child[1]).";"; |
| 662 |
break; |
| 663 |
case "assign": |
| 664 |
list(,$name, $value) = $child; |
| 665 |
if ($name[0] == "var") { |
| 666 |
$isDefault = !empty($child[3]); |
| 667 |
|
| 668 |
if ($isDefault) { |
| 669 |
$existingValue = $this->get($name[1], true); |
| 670 |
$shouldSet = $existingValue === true || $existingValue == self::$null; |
| 671 |
} |
| 672 |
|
| 673 |
if (!$isDefault || $shouldSet) { |
| 674 |
$this->set($name[1], $this->reduce($value)); |
| 675 |
} |
| 676 |
break; |
| 677 |
} |
| 678 |
|
| 679 |
// if the value reduces to null from something else then |
| 680 |
// the property should be discarded |
| 681 |
if ($value[0] != "null") { |
| 682 |
$value = $this->reduce($value); |
| 683 |
if ($value[0] == "null") { |
| 684 |
break; |
| 685 |
} |
| 686 |
} |
| 687 |
|
| 688 |
$compiledValue = $this->compileValue($value); |
| 689 |
$out->lines[] = $this->formatter->property( |
| 690 |
$this->compileValue($name), |
| 691 |
$compiledValue); |
| 692 |
break; |
| 693 |
case "comment": |
| 694 |
$out->lines[] = $child[1]; |
| 695 |
break; |
| 696 |
case "mixin": |
| 697 |
case "function": |
| 698 |
list(,$block) = $child; |
| 699 |
$this->set(self::$namespaces[$block->type] . $block->name, $block); |
| 700 |
break; |
| 701 |
case "extend": |
| 702 |
list(, $selectors) = $child; |
| 703 |
foreach ($selectors as $sel) { |
| 704 |
// only use the first one |
| 705 |
$sel = current($this->evalSelector($sel)); |
| 706 |
$this->pushExtends($sel, $out->selectors); |
| 707 |
} |
| 708 |
break; |
| 709 |
case "if": |
| 710 |
list(, $if) = $child; |
| 711 |
if ($this->isTruthy($this->reduce($if->cond, true))) { |
| 712 |
return $this->compileChildren($if->children, $out); |
| 713 |
} else { |
| 714 |
foreach ($if->cases as $case) { |
| 715 |
if ($case->type == "else" || |
| 716 |
$case->type == "elseif" && $this->isTruthy($this->reduce($case->cond))) |
| 717 |
{ |
| 718 |
return $this->compileChildren($case->children, $out); |
| 719 |
} |
| 720 |
} |
| 721 |
} |
| 722 |
break; |
| 723 |
case "return": |
| 724 |
return $this->reduce($child[1], true); |
| 725 |
case "each": |
| 726 |
list(,$each) = $child; |
| 727 |
$list = $this->coerceList($this->reduce($each->list)); |
| 728 |
foreach ($list[2] as $item) { |
| 729 |
$this->pushEnv(); |
| 730 |
$this->set($each->var, $item); |
| 731 |
// TODO: allow return from here |
| 732 |
$this->compileChildren($each->children, $out); |
| 733 |
$this->popEnv(); |
| 734 |
} |
| 735 |
break; |
| 736 |
case "while": |
| 737 |
list(,$while) = $child; |
| 738 |
while ($this->isTruthy($this->reduce($while->cond, true))) { |
| 739 |
$ret = $this->compileChildren($while->children, $out); |
| 740 |
if ($ret) return $ret; |
| 741 |
} |
| 742 |
break; |
| 743 |
case "for": |
| 744 |
list(,$for) = $child; |
| 745 |
$start = $this->reduce($for->start, true); |
| 746 |
$start = $start[1]; |
| 747 |
$end = $this->reduce($for->end, true); |
| 748 |
$end = $end[1]; |
| 749 |
$d = $start < $end ? 1 : -1; |
| 750 |
|
| 751 |
while (true) { |
| 752 |
if ((!$for->until && $start - $d == $end) || |
| 753 |
($for->until && $start == $end)) |
| 754 |
{ |
| 755 |
break; |
| 756 |
} |
| 757 |
|
| 758 |
$this->set($for->var, array("number", $start, "")); |
| 759 |
$start += $d; |
| 760 |
|
| 761 |
$ret = $this->compileChildren($for->children, $out); |
| 762 |
if ($ret) return $ret; |
| 763 |
} |
| 764 |
|
| 765 |
break; |
| 766 |
case "nestedprop": |
| 767 |
list(,$prop) = $child; |
| 768 |
$prefixed = array(); |
| 769 |
$prefix = $this->compileValue($prop->prefix) . "-"; |
| 770 |
foreach ($prop->children as $child) { |
| 771 |
if ($child[0] == "assign") { |
| 772 |
array_unshift($child[1][2], $prefix); |
| 773 |
} |
| 774 |
if ($child[0] == "nestedprop") { |
| 775 |
array_unshift($child[1]->prefix[2], $prefix); |
| 776 |
} |
| 777 |
$prefixed[] = $child; |
| 778 |
} |
| 779 |
$this->compileChildren($prefixed, $out); |
| 780 |
break; |
| 781 |
case "include": // including a mixin |
| 782 |
list(,$name, $argValues, $content) = $child; |
| 783 |
$mixin = $this->get(self::$namespaces["mixin"] . $name, false); |
| 784 |
if (!$mixin) { |
| 785 |
$this->throwError("Undefined mixin $name"); |
| 786 |
} |
| 787 |
|
| 788 |
$callingScope = $this->env; |
| 789 |
|
| 790 |
// push scope, apply args |
| 791 |
$this->pushEnv(); |
| 792 |
if ($this->env->depth > 0) { |
| 793 |
$this->env->depth--; |
| 794 |
} |
| 795 |
|
| 796 |
if (isset($content)) { |
| 797 |
$content->scope = $callingScope; |
| 798 |
$this->setRaw(self::$namespaces["special"] . "content", $content); |
| 799 |
} |
| 800 |
|
| 801 |
if (isset($mixin->args)) { |
| 802 |
$this->applyArguments($mixin->args, $argValues); |
| 803 |
} |
| 804 |
|
| 805 |
foreach ($mixin->children as $child) { |
| 806 |
$this->compileChild($child, $out); |
| 807 |
} |
| 808 |
|
| 809 |
$this->popEnv(); |
| 810 |
|
| 811 |
break; |
| 812 |
case "mixin_content": |
| 813 |
$content = $this->get(self::$namespaces["special"] . "content"); |
| 814 |
if (!isset($content)) { |
| 815 |
$this->throwError("Expected @content inside of mixin"); |
| 816 |
} |
| 817 |
|
| 818 |
$strongTypes = array('include', 'block', 'for', 'while'); |
| 819 |
foreach ($content->children as $child) { |
| 820 |
$this->storeEnv = (in_array($child[0], $strongTypes)) |
| 821 |
? null |
| 822 |
: $content->scope; |
| 823 |
|
| 824 |
$this->compileChild($child, $out); |
| 825 |
} |
| 826 |
|
| 827 |
unset($this->storeEnv); |
| 828 |
break; |
| 829 |
case "debug": |
| 830 |
list(,$value, $pos) = $child; |
| 831 |
$line = $this->parser->getLineNo($pos); |
| 832 |
$value = $this->compileValue($this->reduce($value, true)); |
| 833 |
fwrite(STDERR, "Line $line DEBUG: $value\n"); |
| 834 |
break; |
| 835 |
default: |
| 836 |
$this->throwError("unknown child type: $child[0]"); |
| 837 |
} |
| 838 |
} |
| 839 |
|
| 840 |
protected function expToString($exp) { |
| 841 |
list(, $op, $left, $right, $inParens, $whiteLeft, $whiteRight) = $exp; |
| 842 |
$content = array($this->reduce($left)); |
| 843 |
if ($whiteLeft) $content[] = " "; |
| 844 |
$content[] = $op; |
| 845 |
if ($whiteRight) $content[] = " "; |
| 846 |
$content[] = $this->reduce($right); |
| 847 |
return array("string", "", $content); |
| 848 |
} |
| 849 |
|
| 850 |
protected function isTruthy($value) { |
| 851 |
return $value != self::$false && $value != self::$null; |
| 852 |
} |
| 853 |
|
| 854 |
// should $value cause its operand to eval |
| 855 |
protected function shouldEval($value) { |
| 856 |
switch ($value[0]) { |
| 857 |
case "exp": |
| 858 |
if ($value[1] == "/") { |
| 859 |
return $this->shouldEval($value[2], $value[3]); |
| 860 |
} |
| 861 |
case "var": |
| 862 |
case "fncall": |
| 863 |
return true; |
| 864 |
} |
| 865 |
return false; |
| 866 |
} |
| 867 |
|
| 868 |
protected function reduce($value, $inExp = false) { |
| 869 |
list($type) = $value; |
| 870 |
switch ($type) { |
| 871 |
case "exp": |
| 872 |
list(, $op, $left, $right, $inParens) = $value; |
| 873 |
$opName = isset(self::$operatorNames[$op]) ? self::$operatorNames[$op] : $op; |
| 874 |
|
| 875 |
$inExp = $inExp || $this->shouldEval($left) || $this->shouldEval($right); |
| 876 |
|
| 877 |
$left = $this->reduce($left, true); |
| 878 |
$right = $this->reduce($right, true); |
| 879 |
|
| 880 |
// only do division in special cases |
| 881 |
if ($opName == "div" && !$inParens && !$inExp) { |
| 882 |
if ($left[0] != "color" && $right[0] != "color") { |
| 883 |
return $this->expToString($value); |
| 884 |
} |
| 885 |
} |
| 886 |
|
| 887 |
$left = $this->coerceForExpression($left); |
| 888 |
$right = $this->coerceForExpression($right); |
| 889 |
|
| 890 |
$ltype = $left[0]; |
| 891 |
$rtype = $right[0]; |
| 892 |
|
| 893 |
// this tries: |
| 894 |
// 1. op_[op name]_[left type]_[right type] |
| 895 |
// 2. op_[left type]_[right type] (passing the op as first arg |
| 896 |
// 3. op_[op name] |
| 897 |
$fn = "op_${opName}_${ltype}_${rtype}"; |
| 898 |
if (is_callable(array($this, $fn)) || |
| 899 |
(($fn = "op_${ltype}_${rtype}") && |
| 900 |
is_callable(array($this, $fn)) && |
| 901 |
$passOp = true) || |
| 902 |
(($fn = "op_${opName}") && |
| 903 |
is_callable(array($this, $fn)) && |
| 904 |
$genOp = true)) |
| 905 |
{ |
| 906 |
$unitChange = false; |
| 907 |
if (!isset($genOp) && |
| 908 |
$left[0] == "number" && $right[0] == "number") |
| 909 |
{ |
| 910 |
if ($opName == "mod" && $right[2] != "") { |
| 911 |
$this->throwError("Cannot modulo by a number with units: $right[1]$right[2]."); |
| 912 |
} |
| 913 |
|
| 914 |
$unitChange = true; |
| 915 |
$emptyUnit = $left[2] == "" || $right[2] == ""; |
| 916 |
$targetUnit = "" != $left[2] ? $left[2] : $right[2]; |
| 917 |
|
| 918 |
if ($opName != "mul") { |
| 919 |
$left[2] = "" != $left[2] ? $left[2] : $targetUnit; |
| 920 |
$right[2] = "" != $right[2] ? $right[2] : $targetUnit; |
| 921 |
} |
| 922 |
|
| 923 |
if ($opName != "mod") { |
| 924 |
$left = $this->normalizeNumber($left); |
| 925 |
$right = $this->normalizeNumber($right); |
| 926 |
} |
| 927 |
|
| 928 |
if ($opName == "div" && !$emptyUnit && $left[2] == $right[2]) { |
| 929 |
$targetUnit = ""; |
| 930 |
} |
| 931 |
|
| 932 |
if ($opName == "mul") { |
| 933 |
$left[2] = "" != $left[2] ? $left[2] : $right[2]; |
| 934 |
$right[2] = "" != $right[2] ? $right[2] : $left[2]; |
| 935 |
} elseif ($opName == "div" && $left[2] == $right[2]) { |
| 936 |
$left[2] = ""; |
| 937 |
$right[2] = ""; |
| 938 |
} |
| 939 |
} |
| 940 |
|
| 941 |
$shouldEval = $inParens || $inExp; |
| 942 |
if (isset($passOp)) { |
| 943 |
$out = $this->$fn($op, $left, $right, $shouldEval); |
| 944 |
} else { |
| 945 |
$out = $this->$fn($left, $right, $shouldEval); |
| 946 |
} |
| 947 |
|
| 948 |
if (isset($out)) { |
| 949 |
if ($unitChange && $out[0] == "number") { |
| 950 |
$out = $this->coerceUnit($out, $targetUnit); |
| 951 |
} |
| 952 |
return $out; |
| 953 |
} |
| 954 |
} |
| 955 |
|
| 956 |
return $this->expToString($value); |
| 957 |
case "unary": |
| 958 |
list(, $op, $exp, $inParens) = $value; |
| 959 |
$inExp = $inExp || $this->shouldEval($exp); |
| 960 |
|
| 961 |
$exp = $this->reduce($exp); |
| 962 |
if ($exp[0] == "number") { |
| 963 |
switch ($op) { |
| 964 |
case "+": |
| 965 |
return $exp; |
| 966 |
case "-": |
| 967 |
$exp[1] *= -1; |
| 968 |
return $exp; |
| 969 |
} |
| 970 |
} |
| 971 |
|
| 972 |
if ($op == "not") { |
| 973 |
if ($inExp || $inParens) { |
| 974 |
if ($exp == self::$false) { |
| 975 |
return self::$true; |
| 976 |
} else { |
| 977 |
return self::$false; |
| 978 |
} |
| 979 |
} else { |
| 980 |
$op = $op . " "; |
| 981 |
} |
| 982 |
} |
| 983 |
|
| 984 |
return array("string", "", array($op, $exp)); |
| 985 |
case "var": |
| 986 |
list(, $name) = $value; |
| 987 |
return $this->reduce($this->get($name)); |
| 988 |
case "list": |
| 989 |
foreach ($value[2] as &$item) { |
| 990 |
$item = $this->reduce($item); |
| 991 |
} |
| 992 |
return $value; |
| 993 |
case "string": |
| 994 |
foreach ($value[2] as &$item) { |
| 995 |
if (is_array($item)) { |
| 996 |
$item = $this->reduce($item); |
| 997 |
} |
| 998 |
} |
| 999 |
return $value; |
| 1000 |
case "interpolate": |
| 1001 |
$value[1] = $this->reduce($value[1]); |
| 1002 |
return $value; |
| 1003 |
case "fncall": |
| 1004 |
list(,$name, $argValues) = $value; |
| 1005 |
|
| 1006 |
// user defined function? |
| 1007 |
$func = $this->get(self::$namespaces["function"] . $name, false); |
| 1008 |
if ($func) { |
| 1009 |
$this->pushEnv(); |
| 1010 |
|
| 1011 |
// set the args |
| 1012 |
if (isset($func->args)) { |
| 1013 |
$this->applyArguments($func->args, $argValues); |
| 1014 |
} |
| 1015 |
|
| 1016 |
// throw away lines and children |
| 1017 |
$tmp = (object)array( |
| 1018 |
"lines" => array(), |
| 1019 |
"children" => array() |
| 1020 |
); |
| 1021 |
$ret = $this->compileChildren($func->children, $tmp); |
| 1022 |
$this->popEnv(); |
| 1023 |
|
| 1024 |
return !isset($ret) ? self::$defaultValue : $ret; |
| 1025 |
} |
| 1026 |
|
| 1027 |
// built in function |
| 1028 |
if ($this->callBuiltin($name, $argValues, $returnValue)) { |
| 1029 |
return $returnValue; |
| 1030 |
} |
| 1031 |
|
| 1032 |
// need to flatten the arguments into a list |
| 1033 |
$listArgs = array(); |
| 1034 |
foreach ((array)$argValues as $arg) { |
| 1035 |
if (empty($arg[0])) { |
| 1036 |
$listArgs[] = $this->reduce($arg[1]); |
| 1037 |
} |
| 1038 |
} |
| 1039 |
return array("function", $name, array("list", ",", $listArgs)); |
| 1040 |
default: |
| 1041 |
return $value; |
| 1042 |
} |
| 1043 |
} |
| 1044 |
|
| 1045 |
public function normalizeValue($value) { |
| 1046 |
$value = $this->coerceForExpression($this->reduce($value)); |
| 1047 |
list($type) = $value; |
| 1048 |
|
| 1049 |
switch ($type) { |
| 1050 |
case "list": |
| 1051 |
$value = $this->extractInterpolation($value); |
| 1052 |
if ($value[0] != "list") { |
| 1053 |
return array("keyword", $this->compileValue($value)); |
| 1054 |
} |
| 1055 |
foreach ($value[2] as $key => $item) { |
| 1056 |
$value[2][$key] = $this->normalizeValue($item); |
| 1057 |
} |
| 1058 |
return $value; |
| 1059 |
case "number": |
| 1060 |
return $this->normalizeNumber($value); |
| 1061 |
default: |
| 1062 |
return $value; |
| 1063 |
} |
| 1064 |
} |
| 1065 |
|
| 1066 |
// just does physical lengths for now |
| 1067 |
protected function normalizeNumber($number) { |
| 1068 |
list(, $value, $unit) = $number; |
| 1069 |
if (isset(self::$unitTable["in"][$unit])) { |
| 1070 |
$conv = self::$unitTable["in"][$unit]; |
| 1071 |
return array("number", $value / $conv, "in"); |
| 1072 |
} |
| 1073 |
return $number; |
| 1074 |
} |
| 1075 |
|
| 1076 |
// $number should be normalized |
| 1077 |
protected function coerceUnit($number, $unit) { |
| 1078 |
list(, $value, $baseUnit) = $number; |
| 1079 |
if (isset(self::$unitTable[$baseUnit][$unit])) { |
| 1080 |
$value = $value * self::$unitTable[$baseUnit][$unit]; |
| 1081 |
} |
| 1082 |
|
| 1083 |
return array("number", $value, $unit); |
| 1084 |
} |
| 1085 |
|
| 1086 |
protected function op_add_number_number($left, $right) { |
| 1087 |
return array("number", $left[1] + $right[1], $left[2]); |
| 1088 |
} |
| 1089 |
|
| 1090 |
protected function op_mul_number_number($left, $right) { |
| 1091 |
return array("number", $left[1] * $right[1], $left[2]); |
| 1092 |
} |
| 1093 |
|
| 1094 |
protected function op_sub_number_number($left, $right) { |
| 1095 |
return array("number", $left[1] - $right[1], $left[2]); |
| 1096 |
} |
| 1097 |
|
| 1098 |
protected function op_div_number_number($left, $right) { |
| 1099 |
return array("number", $left[1] / $right[1], $left[2]); |
| 1100 |
} |
| 1101 |
|
| 1102 |
protected function op_mod_number_number($left, $right) { |
| 1103 |
return array("number", $left[1] % $right[1], $left[2]); |
| 1104 |
} |
| 1105 |
|
| 1106 |
// adding strings |
| 1107 |
protected function op_add($left, $right) { |
| 1108 |
if ($strLeft = $this->coerceString($left)) { |
| 1109 |
if ($right[0] == "string") { |
| 1110 |
$right[1] = ""; |
| 1111 |
} |
| 1112 |
$strLeft[2][] = $right; |
| 1113 |
return $strLeft; |
| 1114 |
} |
| 1115 |
|
| 1116 |
if ($strRight = $this->coerceString($right)) { |
| 1117 |
if ($left[0] == "string") { |
| 1118 |
$left[1] = ""; |
| 1119 |
} |
| 1120 |
array_unshift($strRight[2], $left); |
| 1121 |
return $strRight; |
| 1122 |
} |
| 1123 |
} |
| 1124 |
|
| 1125 |
protected function op_and($left, $right, $shouldEval) { |
| 1126 |
if (!$shouldEval) return; |
| 1127 |
if ($left != self::$false) return $right; |
| 1128 |
return $left; |
| 1129 |
} |
| 1130 |
|
| 1131 |
protected function op_or($left, $right, $shouldEval) { |
| 1132 |
if (!$shouldEval) return; |
| 1133 |
if ($left != self::$false) return $left; |
| 1134 |
return $right; |
| 1135 |
} |
| 1136 |
|
| 1137 |
protected function op_color_color($op, $left, $right) { |
| 1138 |
$out = array('color'); |
| 1139 |
foreach (range(1, 3) as $i) { |
| 1140 |
$lval = isset($left[$i]) ? $left[$i] : 0; |
| 1141 |
$rval = isset($right[$i]) ? $right[$i] : 0; |
| 1142 |
switch ($op) { |
| 1143 |
case '+': |
| 1144 |
$out[] = $lval + $rval; |
| 1145 |
break; |
| 1146 |
case '-': |
| 1147 |
$out[] = $lval - $rval; |
| 1148 |
break; |
| 1149 |
case '*': |
| 1150 |
$out[] = $lval * $rval; |
| 1151 |
break; |
| 1152 |
case '%': |
| 1153 |
$out[] = $lval % $rval; |
| 1154 |
break; |
| 1155 |
case '/': |
| 1156 |
if ($rval == 0) { |
| 1157 |
$this->throwError("color: Can't divide by zero"); |
| 1158 |
} |
| 1159 |
$out[] = $lval / $rval; |
| 1160 |
break; |
| 1161 |
case "==": |
| 1162 |
return $this->op_eq($left, $right); |
| 1163 |
case "!=": |
| 1164 |
return $this->op_neq($left, $right); |
| 1165 |
default: |
| 1166 |
$this->throwError("color: unknown op $op"); |
| 1167 |
} |
| 1168 |
} |
| 1169 |
|
| 1170 |
if (isset($left[4])) $out[4] = $left[4]; |
| 1171 |
elseif (isset($right[4])) $out[4] = $right[4]; |
| 1172 |
|
| 1173 |
return $this->fixColor($out); |
| 1174 |
} |
| 1175 |
|
| 1176 |
protected function op_color_number($op, $left, $right) { |
| 1177 |
$value = $right[1]; |
| 1178 |
return $this->op_color_color($op, $left, |
| 1179 |
array("color", $value, $value, $value)); |
| 1180 |
} |
| 1181 |
|
| 1182 |
protected function op_number_color($op, $left, $right) { |
| 1183 |
$value = $left[1]; |
| 1184 |
return $this->op_color_color($op, |
| 1185 |
array("color", $value, $value, $value), $right); |
| 1186 |
} |
| 1187 |
|
| 1188 |
protected function op_eq($left, $right) { |
| 1189 |
if (($lStr = $this->coerceString($left)) && ($rStr = $this->coerceString($right))) { |
| 1190 |
$lStr[1] = ""; |
| 1191 |
$rStr[1] = ""; |
| 1192 |
return $this->toBool($this->compileValue($lStr) == $this->compileValue($rStr)); |
| 1193 |
} |
| 1194 |
|
| 1195 |
return $this->toBool($left == $right); |
| 1196 |
} |
| 1197 |
|
| 1198 |
protected function op_neq($left, $right) { |
| 1199 |
return $this->toBool($left != $right); |
| 1200 |
} |
| 1201 |
|
| 1202 |
protected function op_gte_number_number($left, $right) { |
| 1203 |
return $this->toBool($left[1] >= $right[1]); |
| 1204 |
} |
| 1205 |
|
| 1206 |
protected function op_gt_number_number($left, $right) { |
| 1207 |
return $this->toBool($left[1] > $right[1]); |
| 1208 |
} |
| 1209 |
|
| 1210 |
protected function op_lte_number_number($left, $right) { |
| 1211 |
return $this->toBool($left[1] <= $right[1]); |
| 1212 |
} |
| 1213 |
|
| 1214 |
protected function op_lt_number_number($left, $right) { |
| 1215 |
return $this->toBool($left[1] < $right[1]); |
| 1216 |
} |
| 1217 |
|
| 1218 |
public function toBool($thing) { |
| 1219 |
return $thing ? self::$true : self::$false; |
| 1220 |
} |
| 1221 |
|
| 1222 |
/** |
| 1223 |
* Compiles a primitive value into a CSS property value. |
| 1224 |
* |
| 1225 |
* Values in scssphp are typed by being wrapped in arrays, their format is |
| 1226 |
* typically: |
| 1227 |
* |
| 1228 |
* array(type, contents [, additional_contents]*) |
| 1229 |
* |
| 1230 |
* The input is expected to be reduced. This function will not work on |
| 1231 |
* things like expressions and variables. |
| 1232 |
* |
| 1233 |
* @param array $value |
| 1234 |
*/ |
| 1235 |
protected function compileValue($value) { |
| 1236 |
$value = $this->reduce($value); |
| 1237 |
|
| 1238 |
list($type) = $value; |
| 1239 |
switch ($type) { |
| 1240 |
case "keyword": |
| 1241 |
return $value[1]; |
| 1242 |
case "color": |
| 1243 |
// [1] - red component (either number for a %) |
| 1244 |
// [2] - green component |
| 1245 |
// [3] - blue component |
| 1246 |
// [4] - optional alpha component |
| 1247 |
list(, $r, $g, $b) = $value; |
| 1248 |
|
| 1249 |
$r = round($r); |
| 1250 |
$g = round($g); |
| 1251 |
$b = round($b); |
| 1252 |
|
| 1253 |
if (count($value) == 5 && $value[4] != 1) { // rgba |
| 1254 |
return 'rgba('.$r.', '.$g.', '.$b.', '.$value[4].')'; |
| 1255 |
} |
| 1256 |
|
| 1257 |
$h = sprintf("#%02x%02x%02x", $r, $g, $b); |
| 1258 |
|
| 1259 |
// Converting hex color to short notation (e.g. #003399 to #039) |
| 1260 |
if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) { |
| 1261 |
$h = '#' . $h[1] . $h[3] . $h[5]; |
| 1262 |
} |
| 1263 |
|
| 1264 |
return $h; |
| 1265 |
case "number": |
| 1266 |
return round($value[1], $this->numberPrecision) . $value[2]; |
| 1267 |
case "string": |
| 1268 |
return $value[1] . $this->compileStringContent($value) . $value[1]; |
| 1269 |
case "function": |
| 1270 |
$args = !empty($value[2]) ? $this->compileValue($value[2]) : ""; |
| 1271 |
return "$value[1]($args)"; |
| 1272 |
case "list": |
| 1273 |
$value = $this->extractInterpolation($value); |
| 1274 |
if ($value[0] != "list") return $this->compileValue($value); |
| 1275 |
|
| 1276 |
list(, $delim, $items) = $value; |
| 1277 |
|
| 1278 |
$filtered = array(); |
| 1279 |
foreach ($items as $item) { |
| 1280 |
if ($item[0] == "null") continue; |
| 1281 |
$filtered[] = $this->compileValue($item); |
| 1282 |
} |
| 1283 |
|
| 1284 |
return implode("$delim ", $filtered); |
| 1285 |
case "interpolated": # node created by extractInterpolation |
| 1286 |
list(, $interpolate, $left, $right) = $value; |
| 1287 |
list(,, $whiteLeft, $whiteRight) = $interpolate; |
| 1288 |
|
| 1289 |
$left = count($left[2]) > 0 ? |
| 1290 |
$this->compileValue($left).$whiteLeft : ""; |
| 1291 |
|
| 1292 |
$right = count($right[2]) > 0 ? |
| 1293 |
$whiteRight.$this->compileValue($right) : ""; |
| 1294 |
|
| 1295 |
return $left.$this->compileValue($interpolate).$right; |
| 1296 |
|
| 1297 |
case "interpolate": # raw parse node |
| 1298 |
list(, $exp) = $value; |
| 1299 |
|
| 1300 |
// strip quotes if it's a string |
| 1301 |
$reduced = $this->reduce($exp); |
| 1302 |
switch ($reduced[0]) { |
| 1303 |
case "string": |
| 1304 |
$reduced = array("keyword", |
| 1305 |
$this->compileStringContent($reduced)); |
| 1306 |
break; |
| 1307 |
case "null": |
| 1308 |
$reduced = array("keyword", ""); |
| 1309 |
} |
| 1310 |
|
| 1311 |
return $this->compileValue($reduced); |
| 1312 |
case "null": |
| 1313 |
return "null"; |
| 1314 |
default: |
| 1315 |
$this->throwError("unknown value type: $type"); |
| 1316 |
} |
| 1317 |
} |
| 1318 |
|
| 1319 |
protected function compileStringContent($string) { |
| 1320 |
$parts = array(); |
| 1321 |
foreach ($string[2] as $part) { |
| 1322 |
if (is_array($part)) { |
| 1323 |
$parts[] = $this->compileValue($part); |
| 1324 |
} else { |
| 1325 |
$parts[] = $part; |
| 1326 |
} |
| 1327 |
} |
| 1328 |
|
| 1329 |
return implode($parts); |
| 1330 |
} |
| 1331 |
|
| 1332 |
// doesn't need to be recursive, compileValue will handle that |
| 1333 |
protected function extractInterpolation($list) { |
| 1334 |
$items = $list[2]; |
| 1335 |
foreach ($items as $i => $item) { |
| 1336 |
if ($item[0] == "interpolate") { |
| 1337 |
$before = array("list", $list[1], array_slice($items, 0, $i)); |
| 1338 |
$after = array("list", $list[1], array_slice($items, $i + 1)); |
| 1339 |
return array("interpolated", $item, $before, $after); |
| 1340 |
} |
| 1341 |
} |
| 1342 |
return $list; |
| 1343 |
} |
| 1344 |
|
| 1345 |
// find the final set of selectors |
| 1346 |
protected function multiplySelectors($env) { |
| 1347 |
$envs = array(); |
| 1348 |
while (null !== $env) { |
| 1349 |
if (!empty($env->selectors)) { |
| 1350 |
$envs[] = $env; |
| 1351 |
} |
| 1352 |
$env = $env->parent; |
| 1353 |
}; |
| 1354 |
|
| 1355 |
$selectors = array(); |
| 1356 |
$parentSelectors = array(array()); |
| 1357 |
while ($env = array_pop($envs)) { |
| 1358 |
$selectors = array(); |
| 1359 |
foreach ($env->selectors as $selector) { |
| 1360 |
foreach ($parentSelectors as $parent) { |
| 1361 |
$selectors[] = $this->joinSelectors($parent, $selector); |
| 1362 |
} |
| 1363 |
} |
| 1364 |
$parentSelectors = $selectors; |
| 1365 |
} |
| 1366 |
|
| 1367 |
return $selectors; |
| 1368 |
} |
| 1369 |
|
| 1370 |
// looks for & to replace, or append parent before child |
| 1371 |
protected function joinSelectors($parent, $child) { |
| 1372 |
$setSelf = false; |
| 1373 |
$out = array(); |
| 1374 |
foreach ($child as $part) { |
| 1375 |
$newPart = array(); |
| 1376 |
foreach ($part as $p) { |
| 1377 |
if ($p == self::$selfSelector) { |
| 1378 |
$setSelf = true; |
| 1379 |
foreach ($parent as $i => $parentPart) { |
| 1380 |
if ($i > 0) { |
| 1381 |
$out[] = $newPart; |
| 1382 |
$newPart = array(); |
| 1383 |
} |
| 1384 |
|
| 1385 |
foreach ($parentPart as $pp) { |
| 1386 |
$newPart[] = $pp; |
| 1387 |
} |
| 1388 |
} |
| 1389 |
} else { |
| 1390 |
$newPart[] = $p; |
| 1391 |
} |
| 1392 |
} |
| 1393 |
|
| 1394 |
$out[] = $newPart; |
| 1395 |
} |
| 1396 |
|
| 1397 |
return $setSelf ? $out : array_merge($parent, $child); |
| 1398 |
} |
| 1399 |
|
| 1400 |
protected function multiplyMedia($env, $childQueries = null) { |
| 1401 |
if (!isset($env) || |
| 1402 |
!empty($env->block->type) && $env->block->type != "media") |
| 1403 |
{ |
| 1404 |
return $childQueries; |
| 1405 |
} |
| 1406 |
|
| 1407 |
// plain old block, skip |
| 1408 |
if (empty($env->block->type)) { |
| 1409 |
return $this->multiplyMedia($env->parent, $childQueries); |
| 1410 |
} |
| 1411 |
|
| 1412 |
$parentQueries = $env->block->queryList; |
| 1413 |
if ($childQueries == null) { |
| 1414 |
$childQueries = $parentQueries; |
| 1415 |
} else { |
| 1416 |
$originalQueries = $childQueries; |
| 1417 |
$childQueries = array(); |
| 1418 |
|
| 1419 |
foreach ($parentQueries as $parentQuery){ |
| 1420 |
foreach ($originalQueries as $childQuery) { |
| 1421 |
$childQueries []= array_merge($parentQuery, $childQuery); |
| 1422 |
} |
| 1423 |
} |
| 1424 |
} |
| 1425 |
|
| 1426 |
return $this->multiplyMedia($env->parent, $childQueries); |
| 1427 |
} |
| 1428 |
|
| 1429 |
// convert something to list |
| 1430 |
protected function coerceList($item, $delim = ",") { |
| 1431 |
if (isset($item) && $item[0] == "list") { |
| 1432 |
return $item; |
| 1433 |
} |
| 1434 |
|
| 1435 |
return array("list", $delim, !isset($item) ? array(): array($item)); |
| 1436 |
} |
| 1437 |
|
| 1438 |
protected function applyArguments($argDef, $argValues) { |
| 1439 |
$hasVariable = false; |
| 1440 |
$args = array(); |
| 1441 |
foreach ($argDef as $i => $arg) { |
| 1442 |
list($name, $default, $isVariable) = $argDef[$i]; |
| 1443 |
$args[$name] = array($i, $name, $default, $isVariable); |
| 1444 |
$hasVariable |= $isVariable; |
| 1445 |
} |
| 1446 |
|
| 1447 |
$keywordArgs = array(); |
| 1448 |
$deferredKeywordArgs = array(); |
| 1449 |
$remaining = array(); |
| 1450 |
// assign the keyword args |
| 1451 |
foreach ((array) $argValues as $arg) { |
| 1452 |
if (!empty($arg[0])) { |
| 1453 |
if (!isset($args[$arg[0][1]])) { |
| 1454 |
if ($hasVariable) { |
| 1455 |
$deferredKeywordArgs[$arg[0][1]] = $arg[1]; |
| 1456 |
} else { |
| 1457 |
$this->throwError("Mixin or function doesn't have an argument named $%s.", $arg[0][1]); |
| 1458 |
} |
| 1459 |
} elseif ($args[$arg[0][1]][0] < count($remaining)) { |
| 1460 |
$this->throwError("The argument $%s was passed both by position and by name.", $arg[0][1]); |
| 1461 |
} else { |
| 1462 |
$keywordArgs[$arg[0][1]] = $arg[1]; |
| 1463 |
} |
| 1464 |
} elseif (count($keywordArgs)) { |
| 1465 |
$this->throwError('Positional arguments must come before keyword arguments.'); |
| 1466 |
} elseif ($arg[2] == true) { |
| 1467 |
$val = $this->reduce($arg[1], true); |
| 1468 |
if ($val[0] == "list") { |
| 1469 |
foreach ($val[2] as $name => $item) { |
| 1470 |
if (!is_numeric($name)) { |
| 1471 |
$keywordArgs[$name] = $item; |
| 1472 |
} else { |
| 1473 |
$remaining[] = $item; |
| 1474 |
} |
| 1475 |
} |
| 1476 |
} else { |
| 1477 |
$remaining[] = $val; |
| 1478 |
} |
| 1479 |
} else { |
| 1480 |
$remaining[] = $arg[1]; |
| 1481 |
} |
| 1482 |
} |
| 1483 |
|
| 1484 |
foreach ($args as $arg) { |
| 1485 |
list($i, $name, $default, $isVariable) = $arg; |
| 1486 |
if ($isVariable) { |
| 1487 |
$val = array("list", ",", array()); |
| 1488 |
for ($count = count($remaining); $i < $count; $i++) { |
| 1489 |
$val[2][] = $remaining[$i]; |
| 1490 |
} |
| 1491 |
foreach ($deferredKeywordArgs as $itemName => $item) { |
| 1492 |
$val[2][$itemName] = $item; |
| 1493 |
} |
| 1494 |
} elseif (isset($remaining[$i])) { |
| 1495 |
$val = $remaining[$i]; |
| 1496 |
} elseif (isset($keywordArgs[$name])) { |
| 1497 |
$val = $keywordArgs[$name]; |
| 1498 |
} elseif (!empty($default)) { |
| 1499 |
$val = $default; |
| 1500 |
} else { |
| 1501 |
$this->throwError("Missing argument $name"); |
| 1502 |
} |
| 1503 |
|
| 1504 |
$this->set($name, $this->reduce($val, true), true); |
| 1505 |
} |
| 1506 |
} |
| 1507 |
|
| 1508 |
protected function pushEnv($block=null) { |
| 1509 |
$env = new stdClass; |
| 1510 |
$env->parent = $this->env; |
| 1511 |
$env->store = array(); |
| 1512 |
$env->block = $block; |
| 1513 |
$env->depth = isset($this->env->depth) ? $this->env->depth + 1 : 0; |
| 1514 |
|
| 1515 |
$this->env = $env; |
| 1516 |
return $env; |
| 1517 |
} |
| 1518 |
|
| 1519 |
protected function normalizeName($name) { |
| 1520 |
return str_replace("-", "_", $name); |
| 1521 |
} |
| 1522 |
|
| 1523 |
protected function getStoreEnv() { |
| 1524 |
return isset($this->storeEnv) ? $this->storeEnv : $this->env; |
| 1525 |
} |
| 1526 |
|
| 1527 |
protected function set($name, $value, $shadow=false) { |
| 1528 |
$name = $this->normalizeName($name); |
| 1529 |
|
| 1530 |
if ($shadow) { |
| 1531 |
$this->setRaw($name, $value); |
| 1532 |
} else { |
| 1533 |
$this->setExisting($name, $value); |
| 1534 |
} |
| 1535 |
} |
| 1536 |
|
| 1537 |
protected function setExisting($name, $value, $env = null) { |
| 1538 |
if (!isset($env)) $env = $this->getStoreEnv(); |
| 1539 |
|
| 1540 |
if (isset($env->store[$name]) || !isset($env->parent)) { |
| 1541 |
$env->store[$name] = $value; |
| 1542 |
} else { |
| 1543 |
$this->setExisting($name, $value, $env->parent); |
| 1544 |
} |
| 1545 |
} |
| 1546 |
|
| 1547 |
protected function setRaw($name, $value) { |
| 1548 |
$env = $this->getStoreEnv(); |
| 1549 |
$env->store[$name] = $value; |
| 1550 |
} |
| 1551 |
|
| 1552 |
public function get($name, $defaultValue = null, $env = null) { |
| 1553 |
$name = $this->normalizeName($name); |
| 1554 |
|
| 1555 |
if (!isset($env)) $env = $this->getStoreEnv(); |
| 1556 |
if (!isset($defaultValue)) $defaultValue = self::$defaultValue; |
| 1557 |
|
| 1558 |
if (isset($env->store[$name])) { |
| 1559 |
return $env->store[$name]; |
| 1560 |
} elseif (isset($env->parent)) { |
| 1561 |
return $this->get($name, $defaultValue, $env->parent); |
| 1562 |
} |
| 1563 |
|
| 1564 |
return $defaultValue; // found nothing |
| 1565 |
} |
| 1566 |
|
| 1567 |
protected function injectVariables(array $args) |
| 1568 |
{ |
| 1569 |
if (empty($args)) { |
| 1570 |
return; |
| 1571 |
} |
| 1572 |
|
| 1573 |
$parser = new scss_parser(__METHOD__, false); |
| 1574 |
|
| 1575 |
foreach ($args as $name => $strValue) { |
| 1576 |
if ($name[0] === '$') { |
| 1577 |
$name = substr($name, 1); |
| 1578 |
} |
| 1579 |
|
| 1580 |
$parser->env = null; |
| 1581 |
$parser->count = 0; |
| 1582 |
$parser->buffer = (string) $strValue; |
| 1583 |
$parser->inParens = false; |
| 1584 |
$parser->eatWhiteDefault = true; |
| 1585 |
$parser->insertComments = true; |
| 1586 |
|
| 1587 |
if ( ! $parser->valueList($value)) { |
| 1588 |
throw new Exception("failed to parse passed in variable $name: $strValue"); |
| 1589 |
} |
| 1590 |
|
| 1591 |
$this->set($name, $value); |
| 1592 |
} |
| 1593 |
} |
| 1594 |
|
| 1595 |
/** |
| 1596 |
* Set variables |
| 1597 |
* |
| 1598 |
* @param array $variables |
| 1599 |
*/ |
| 1600 |
public function setVariables(array $variables) |
| 1601 |
{ |
| 1602 |
$this->registeredVars = array_merge($this->registeredVars, $variables); |
| 1603 |
} |
| 1604 |
|
| 1605 |
/** |
| 1606 |
* Unset variable |
| 1607 |
* |
| 1608 |
* @param string $name |
| 1609 |
*/ |
| 1610 |
public function unsetVariable($name) |
| 1611 |
{ |
| 1612 |
unset($this->registeredVars[$name]); |
| 1613 |
} |
| 1614 |
|
| 1615 |
protected function popEnv() { |
| 1616 |
$env = $this->env; |
| 1617 |
$this->env = $this->env->parent; |
| 1618 |
return $env; |
| 1619 |
} |
| 1620 |
|
| 1621 |
public function getParsedFiles() { |
| 1622 |
return $this->parsedFiles; |
| 1623 |
} |
| 1624 |
|
| 1625 |
public function addImportPath($path) { |
| 1626 |
$this->importPaths[] = $path; |
| 1627 |
} |
| 1628 |
|
| 1629 |
public function setImportPaths($path) { |
| 1630 |
$this->importPaths = (array)$path; |
| 1631 |
} |
| 1632 |
|
| 1633 |
public function setNumberPrecision($numberPrecision) { |
| 1634 |
$this->numberPrecision = $numberPrecision; |
| 1635 |
} |
| 1636 |
|
| 1637 |
public function setFormatter($formatterName) { |
| 1638 |
$this->formatter = $formatterName; |
| 1639 |
} |
| 1640 |
|
| 1641 |
public function registerFunction($name, $func) { |
| 1642 |
$this->userFunctions[$this->normalizeName($name)] = $func; |
| 1643 |
} |
| 1644 |
|
| 1645 |
public function unregisterFunction($name) { |
| 1646 |
unset($this->userFunctions[$this->normalizeName($name)]); |
| 1647 |
} |
| 1648 |
|
| 1649 |
protected function importFile($path, $out) { |
| 1650 |
// see if tree is cached |
| 1651 |
$realPath = realpath($path); |
| 1652 |
if (isset($this->importCache[$realPath])) { |
| 1653 |
$tree = $this->importCache[$realPath]; |
| 1654 |
} else { |
| 1655 |
$code = file_get_contents($path); |
| 1656 |
$parser = new scss_parser($path, false); |
| 1657 |
$tree = $parser->parse($code); |
| 1658 |
$this->parsedFiles[] = $path; |
| 1659 |
|
| 1660 |
$this->importCache[$realPath] = $tree; |
| 1661 |
} |
| 1662 |
|
| 1663 |
$pi = pathinfo($path); |
| 1664 |
array_unshift($this->importPaths, $pi['dirname']); |
| 1665 |
$this->compileChildren($tree->children, $out); |
| 1666 |
array_shift($this->importPaths); |
| 1667 |
} |
| 1668 |
|
| 1669 |
// results the file path for an import url if it exists |
| 1670 |
public function findImport($url) { |
| 1671 |
$urls = array(); |
| 1672 |
|
| 1673 |
// for "normal" scss imports (ignore vanilla css and external requests) |
| 1674 |
if (!preg_match('/\.css|^http:\/\/$/', $url)) { |
| 1675 |
// try both normal and the _partial filename |
| 1676 |
$urls = array($url, preg_replace('/[^\/]+$/', '_\0', $url)); |
| 1677 |
} |
| 1678 |
|
| 1679 |
foreach ($this->importPaths as $dir) { |
| 1680 |
if (is_string($dir)) { |
| 1681 |
// check urls for normal import paths |
| 1682 |
foreach ($urls as $full) { |
| 1683 |
$full = $dir . |
| 1684 |
(!empty($dir) && substr($dir, -1) != '/' ? '/' : '') . |
| 1685 |
$full; |
| 1686 |
|
| 1687 |
if ($this->fileExists($file = $full.'.scss') || |
| 1688 |
$this->fileExists($file = $full)) |
| 1689 |
{ |
| 1690 |
return $file; |
| 1691 |
} |
| 1692 |
} |
| 1693 |
} else { |
| 1694 |
// check custom callback for import path |
| 1695 |
$file = call_user_func($dir,$url,$this); |
| 1696 |
if ($file !== null) { |
| 1697 |
return $file; |
| 1698 |
} |
| 1699 |
} |
| 1700 |
} |
| 1701 |
|
| 1702 |
return null; |
| 1703 |
} |
| 1704 |
|
| 1705 |
protected function fileExists($name) { |
| 1706 |
return is_file($name); |
| 1707 |
} |
| 1708 |
|
| 1709 |
protected function callBuiltin($name, $args, &$returnValue) { |
| 1710 |
// try a lib function |
| 1711 |
$name = $this->normalizeName($name); |
| 1712 |
$libName = "lib_".$name; |
| 1713 |
$f = array($this, $libName); |
| 1714 |
if (is_callable($f)) { |
| 1715 |
$prototype = isset(self::$$libName) ? self::$$libName : null; |
| 1716 |
$sorted = $this->sortArgs($prototype, $args); |
| 1717 |
foreach ($sorted as &$val) { |
| 1718 |
$val = $this->reduce($val, true); |
| 1719 |
} |
| 1720 |
$returnValue = call_user_func($f, $sorted, $this); |
| 1721 |
} elseif (isset($this->userFunctions[$name])) { |
| 1722 |
// see if we can find a user function |
| 1723 |
$fn = $this->userFunctions[$name]; |
| 1724 |
|
| 1725 |
foreach ($args as &$val) { |
| 1726 |
$val = $this->reduce($val[1], true); |
| 1727 |
} |
| 1728 |
|
| 1729 |
$returnValue = call_user_func($fn, $args, $this); |
| 1730 |
} |
| 1731 |
|
| 1732 |
if (isset($returnValue)) { |
| 1733 |
// coerce a php value into a scss one |
| 1734 |
if (is_numeric($returnValue)) { |
| 1735 |
$returnValue = array('number', $returnValue, ""); |
| 1736 |
} elseif (is_bool($returnValue)) { |
| 1737 |
$returnValue = $returnValue ? self::$true : self::$false; |
| 1738 |
} elseif (!is_array($returnValue)) { |
| 1739 |
$returnValue = array('keyword', $returnValue); |
| 1740 |
} |
| 1741 |
|
| 1742 |
return true; |
| 1743 |
} |
| 1744 |
|
| 1745 |
return false; |
| 1746 |
} |
| 1747 |
|
| 1748 |
// sorts any keyword arguments |
| 1749 |
// TODO: merge with apply arguments |
| 1750 |
protected function sortArgs($prototype, $args) { |
| 1751 |
$keyArgs = array(); |
| 1752 |
$posArgs = array(); |
| 1753 |
|
| 1754 |
foreach ($args as $arg) { |
| 1755 |
list($key, $value) = $arg; |
| 1756 |
$key = $key[1]; |
| 1757 |
if (empty($key)) { |
| 1758 |
$posArgs[] = $value; |
| 1759 |
} else { |
| 1760 |
$keyArgs[$key] = $value; |
| 1761 |
} |
| 1762 |
} |
| 1763 |
|
| 1764 |
if (!isset($prototype)) return $posArgs; |
| 1765 |
|
| 1766 |
$finalArgs = array(); |
| 1767 |
foreach ($prototype as $i => $names) { |
| 1768 |
if (isset($posArgs[$i])) { |
| 1769 |
$finalArgs[] = $posArgs[$i]; |
| 1770 |
continue; |
| 1771 |
} |
| 1772 |
|
| 1773 |
$set = false; |
| 1774 |
foreach ((array)$names as $name) { |
| 1775 |
if (isset($keyArgs[$name])) { |
| 1776 |
$finalArgs[] = $keyArgs[$name]; |
| 1777 |
$set = true; |
| 1778 |
break; |
| 1779 |
} |
| 1780 |
} |
| 1781 |
|
| 1782 |
if (!$set) { |
| 1783 |
$finalArgs[] = null; |
| 1784 |
} |
| 1785 |
} |
| 1786 |
|
| 1787 |
return $finalArgs; |
| 1788 |
} |
| 1789 |
|
| 1790 |
protected function coerceForExpression($value) { |
| 1791 |
if ($color = $this->coerceColor($value)) { |
| 1792 |
return $color; |
| 1793 |
} |
| 1794 |
|
| 1795 |
return $value; |
| 1796 |
} |
| 1797 |
|
| 1798 |
protected function coerceColor($value) { |
| 1799 |
switch ($value[0]) { |
| 1800 |
case "color": return $value; |
| 1801 |
case "keyword": |
| 1802 |
$name = $value[1]; |
| 1803 |
if (isset(self::$cssColors[$name])) { |
| 1804 |
$rgba = explode(',', self::$cssColors[$name]); |
| 1805 |
return isset($rgba[3]) |
| 1806 |
? array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2], (int) $rgba[3]) |
| 1807 |
: array('color', (int) $rgba[0], (int) $rgba[1], (int) $rgba[2]); |
| 1808 |
} |
| 1809 |
return null; |
| 1810 |
} |
| 1811 |
|
| 1812 |
return null; |
| 1813 |
} |
| 1814 |
|
| 1815 |
protected function coerceString($value) { |
| 1816 |
switch ($value[0]) { |
| 1817 |
case "string": |
| 1818 |
return $value; |
| 1819 |
case "keyword": |
| 1820 |
return array("string", "", array($value[1])); |
| 1821 |
} |
| 1822 |
return null; |
| 1823 |
} |
| 1824 |
|
| 1825 |
public function assertList($value) { |
| 1826 |
if ($value[0] != "list") |
| 1827 |
$this->throwError("expecting list"); |
| 1828 |
return $value; |
| 1829 |
} |
| 1830 |
|
| 1831 |
public function assertColor($value) { |
| 1832 |
if ($color = $this->coerceColor($value)) return $color; |
| 1833 |
$this->throwError("expecting color"); |
| 1834 |
} |
| 1835 |
|
| 1836 |
public function assertNumber($value) { |
| 1837 |
if ($value[0] != "number") |
| 1838 |
$this->throwError("expecting number"); |
| 1839 |
return $value[1]; |
| 1840 |
} |
| 1841 |
|
| 1842 |
protected function coercePercent($value) { |
| 1843 |
if ($value[0] == "number") { |
| 1844 |
if ($value[2] == "%") { |
| 1845 |
return $value[1] / 100; |
| 1846 |
} |
| 1847 |
return $value[1]; |
| 1848 |
} |
| 1849 |
return 0; |
| 1850 |
} |
| 1851 |
|
| 1852 |
// make sure a color's components don't go out of bounds |
| 1853 |
protected function fixColor($c) { |
| 1854 |
foreach (range(1, 3) as $i) { |
| 1855 |
if ($c[$i] < 0) $c[$i] = 0; |
| 1856 |
if ($c[$i] > 255) $c[$i] = 255; |
| 1857 |
} |
| 1858 |
|
| 1859 |
return $c; |
| 1860 |
} |
| 1861 |
|
| 1862 |
public function toHSL($red, $green, $blue) { |
| 1863 |
$min = min($red, $green, $blue); |
| 1864 |
$max = max($red, $green, $blue); |
| 1865 |
|
| 1866 |
$l = $min + $max; |
| 1867 |
|
| 1868 |
if ($min == $max) { |
| 1869 |
$s = $h = 0; |
| 1870 |
} else { |
| 1871 |
$d = $max - $min; |
| 1872 |
|
| 1873 |
if ($l < 255) |
| 1874 |
$s = $d / $l; |
| 1875 |
else |
| 1876 |
$s = $d / (510 - $l); |
| 1877 |
|
| 1878 |
if ($red == $max) |
| 1879 |
$h = 60 * ($green - $blue) / $d; |
| 1880 |
elseif ($green == $max) |
| 1881 |
$h = 60 * ($blue - $red) / $d + 120; |
| 1882 |
elseif ($blue == $max) |
| 1883 |
$h = 60 * ($red - $green) / $d + 240; |
| 1884 |
} |
| 1885 |
|
| 1886 |
return array('hsl', fmod($h, 360), $s * 100, $l / 5.1); |
| 1887 |
} |
| 1888 |
|
| 1889 |
public function hueToRGB($m1, $m2, $h) { |
| 1890 |
if ($h < 0) |
| 1891 |
$h += 1; |
| 1892 |
elseif ($h > 1) |
| 1893 |
$h -= 1; |
| 1894 |
|
| 1895 |
if ($h * 6 < 1) |
| 1896 |
return $m1 + ($m2 - $m1) * $h * 6; |
| 1897 |
|
| 1898 |
if ($h * 2 < 1) |
| 1899 |
return $m2; |
| 1900 |
|
| 1901 |
if ($h * 3 < 2) |
| 1902 |
return $m1 + ($m2 - $m1) * (2/3 - $h) * 6; |
| 1903 |
|
| 1904 |
return $m1; |
| 1905 |
} |
| 1906 |
|
| 1907 |
// H from 0 to 360, S and L from 0 to 100 |
| 1908 |
public function toRGB($hue, $saturation, $lightness) { |
| 1909 |
if ($hue < 0) { |
| 1910 |
$hue += 360; |
| 1911 |
} |
| 1912 |
|
| 1913 |
$h = $hue / 360; |
| 1914 |
$s = min(100, max(0, $saturation)) / 100; |
| 1915 |
$l = min(100, max(0, $lightness)) / 100; |
| 1916 |
|
| 1917 |
$m2 = $l <= 0.5 ? $l * ($s + 1) : $l + $s - $l * $s; |
| 1918 |
$m1 = $l * 2 - $m2; |
| 1919 |
|
| 1920 |
$r = $this->hueToRGB($m1, $m2, $h + 1/3) * 255; |
| 1921 |
$g = $this->hueToRGB($m1, $m2, $h) * 255; |
| 1922 |
$b = $this->hueToRGB($m1, $m2, $h - 1/3) * 255; |
| 1923 |
|
| 1924 |
$out = array('color', $r, $g, $b); |
| 1925 |
return $out; |
| 1926 |
} |
| 1927 |
|
| 1928 |
// Built in functions |
| 1929 |
|
| 1930 |
protected static $lib_if = array("condition", "if-true", "if-false"); |
| 1931 |
protected function lib_if($args) { |
| 1932 |
list($cond,$t, $f) = $args; |
| 1933 |
if (!$this->isTruthy($cond)) return $f; |
| 1934 |
return $t; |
| 1935 |
} |
| 1936 |
|
| 1937 |
protected static $lib_index = array("list", "value"); |
| 1938 |
protected function lib_index($args) { |
| 1939 |
list($list, $value) = $args; |
| 1940 |
$list = $this->assertList($list); |
| 1941 |
|
| 1942 |
$values = array(); |
| 1943 |
foreach ($list[2] as $item) { |
| 1944 |
$values[] = $this->normalizeValue($item); |
| 1945 |
} |
| 1946 |
$key = array_search($this->normalizeValue($value), $values); |
| 1947 |
|
| 1948 |
return false === $key ? false : $key + 1; |
| 1949 |
} |
| 1950 |
|
| 1951 |
protected static $lib_rgb = array("red", "green", "blue"); |
| 1952 |
protected function lib_rgb($args) { |
| 1953 |
list($r,$g,$b) = $args; |
| 1954 |
return array("color", $r[1], $g[1], $b[1]); |
| 1955 |
} |
| 1956 |
|
| 1957 |
protected static $lib_rgba = array( |
| 1958 |
array("red", "color"), |
| 1959 |
"green", "blue", "alpha"); |
| 1960 |
protected function lib_rgba($args) { |
| 1961 |
if ($color = $this->coerceColor($args[0])) { |
| 1962 |
$num = !isset($args[1]) ? $args[3] : $args[1]; |
| 1963 |
$alpha = $this->assertNumber($num); |
| 1964 |
$color[4] = $alpha; |
| 1965 |
return $color; |
| 1966 |
} |
| 1967 |
|
| 1968 |
list($r,$g,$b, $a) = $args; |
| 1969 |
return array("color", $r[1], $g[1], $b[1], $a[1]); |
| 1970 |
} |
| 1971 |
|
| 1972 |
// helper function for adjust_color, change_color, and scale_color |
| 1973 |
protected function alter_color($args, $fn) { |
| 1974 |
$color = $this->assertColor($args[0]); |
| 1975 |
|
| 1976 |
foreach (array(1,2,3,7) as $i) { |
| 1977 |
if (isset($args[$i])) { |
| 1978 |
$val = $this->assertNumber($args[$i]); |
| 1979 |
$ii = $i == 7 ? 4 : $i; // alpha |
| 1980 |
$color[$ii] = |
| 1981 |
$this->$fn(isset($color[$ii]) ? $color[$ii] : 0, $val, $i); |
| 1982 |
} |
| 1983 |
} |
| 1984 |
|
| 1985 |
if (isset($args[4]) || isset($args[5]) || isset($args[6])) { |
| 1986 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 1987 |
foreach (array(4,5,6) as $i) { |
| 1988 |
if (isset($args[$i])) { |
| 1989 |
$val = $this->assertNumber($args[$i]); |
| 1990 |
$hsl[$i - 3] = $this->$fn($hsl[$i - 3], $val, $i); |
| 1991 |
} |
| 1992 |
} |
| 1993 |
|
| 1994 |
$rgb = $this->toRGB($hsl[1], $hsl[2], $hsl[3]); |
| 1995 |
if (isset($color[4])) $rgb[4] = $color[4]; |
| 1996 |
$color = $rgb; |
| 1997 |
} |
| 1998 |
|
| 1999 |
return $color; |
| 2000 |
} |
| 2001 |
|
| 2002 |
protected static $lib_adjust_color = array( |
| 2003 |
"color", "red", "green", "blue", |
| 2004 |
"hue", "saturation", "lightness", "alpha" |
| 2005 |
); |
| 2006 |
protected function adjust_color_helper($base, $alter, $i) { |
| 2007 |
return $base += $alter; |
| 2008 |
} |
| 2009 |
protected function lib_adjust_color($args) { |
| 2010 |
return $this->alter_color($args, "adjust_color_helper"); |
| 2011 |
} |
| 2012 |
|
| 2013 |
protected static $lib_change_color = array( |
| 2014 |
"color", "red", "green", "blue", |
| 2015 |
"hue", "saturation", "lightness", "alpha" |
| 2016 |
); |
| 2017 |
protected function change_color_helper($base, $alter, $i) { |
| 2018 |
return $alter; |
| 2019 |
} |
| 2020 |
protected function lib_change_color($args) { |
| 2021 |
return $this->alter_color($args, "change_color_helper"); |
| 2022 |
} |
| 2023 |
|
| 2024 |
protected static $lib_scale_color = array( |
| 2025 |
"color", "red", "green", "blue", |
| 2026 |
"hue", "saturation", "lightness", "alpha" |
| 2027 |
); |
| 2028 |
protected function scale_color_helper($base, $scale, $i) { |
| 2029 |
// 1,2,3 - rgb |
| 2030 |
// 4, 5, 6 - hsl |
| 2031 |
// 7 - a |
| 2032 |
switch ($i) { |
| 2033 |
case 1: |
| 2034 |
case 2: |
| 2035 |
case 3: |
| 2036 |
$max = 255; break; |
| 2037 |
case 4: |
| 2038 |
$max = 360; break; |
| 2039 |
case 7: |
| 2040 |
$max = 1; break; |
| 2041 |
default: |
| 2042 |
$max = 100; |
| 2043 |
} |
| 2044 |
|
| 2045 |
$scale = $scale / 100; |
| 2046 |
if ($scale < 0) { |
| 2047 |
return $base * $scale + $base; |
| 2048 |
} else { |
| 2049 |
return ($max - $base) * $scale + $base; |
| 2050 |
} |
| 2051 |
} |
| 2052 |
protected function lib_scale_color($args) { |
| 2053 |
return $this->alter_color($args, "scale_color_helper"); |
| 2054 |
} |
| 2055 |
|
| 2056 |
protected static $lib_ie_hex_str = array("color"); |
| 2057 |
protected function lib_ie_hex_str($args) { |
| 2058 |
$color = $this->coerceColor($args[0]); |
| 2059 |
$color[4] = isset($color[4]) ? round(255*$color[4]) : 255; |
| 2060 |
|
| 2061 |
return sprintf('#%02X%02X%02X%02X', $color[4], $color[1], $color[2], $color[3]); |
| 2062 |
} |
| 2063 |
|
| 2064 |
protected static $lib_red = array("color"); |
| 2065 |
protected function lib_red($args) { |
| 2066 |
$color = $this->coerceColor($args[0]); |
| 2067 |
return $color[1]; |
| 2068 |
} |
| 2069 |
|
| 2070 |
protected static $lib_green = array("color"); |
| 2071 |
protected function lib_green($args) { |
| 2072 |
$color = $this->coerceColor($args[0]); |
| 2073 |
return $color[2]; |
| 2074 |
} |
| 2075 |
|
| 2076 |
protected static $lib_blue = array("color"); |
| 2077 |
protected function lib_blue($args) { |
| 2078 |
$color = $this->coerceColor($args[0]); |
| 2079 |
return $color[3]; |
| 2080 |
} |
| 2081 |
|
| 2082 |
protected static $lib_alpha = array("color"); |
| 2083 |
protected function lib_alpha($args) { |
| 2084 |
if ($color = $this->coerceColor($args[0])) { |
| 2085 |
return isset($color[4]) ? $color[4] : 1; |
| 2086 |
} |
| 2087 |
|
| 2088 |
// this might be the IE function, so return value unchanged |
| 2089 |
return null; |
| 2090 |
} |
| 2091 |
|
| 2092 |
protected static $lib_opacity = array("color"); |
| 2093 |
protected function lib_opacity($args) { |
| 2094 |
$value = $args[0]; |
| 2095 |
if ($value[0] === 'number') return null; |
| 2096 |
return $this->lib_alpha($args); |
| 2097 |
} |
| 2098 |
|
| 2099 |
// mix two colors |
| 2100 |
protected static $lib_mix = array("color-1", "color-2", "weight"); |
| 2101 |
protected function lib_mix($args) { |
| 2102 |
list($first, $second, $weight) = $args; |
| 2103 |
$first = $this->assertColor($first); |
| 2104 |
$second = $this->assertColor($second); |
| 2105 |
|
| 2106 |
if (!isset($weight)) { |
| 2107 |
$weight = 0.5; |
| 2108 |
} else { |
| 2109 |
$weight = $this->coercePercent($weight); |
| 2110 |
} |
| 2111 |
|
| 2112 |
$firstAlpha = isset($first[4]) ? $first[4] : 1; |
| 2113 |
$secondAlpha = isset($second[4]) ? $second[4] : 1; |
| 2114 |
|
| 2115 |
$w = $weight * 2 - 1; |
| 2116 |
$a = $firstAlpha - $secondAlpha; |
| 2117 |
|
| 2118 |
$w1 = (($w * $a == -1 ? $w : ($w + $a)/(1 + $w * $a)) + 1) / 2.0; |
| 2119 |
$w2 = 1.0 - $w1; |
| 2120 |
|
| 2121 |
$new = array('color', |
| 2122 |
$w1 * $first[1] + $w2 * $second[1], |
| 2123 |
$w1 * $first[2] + $w2 * $second[2], |
| 2124 |
$w1 * $first[3] + $w2 * $second[3], |
| 2125 |
); |
| 2126 |
|
| 2127 |
if ($firstAlpha != 1.0 || $secondAlpha != 1.0) { |
| 2128 |
$new[] = $firstAlpha * $weight + $secondAlpha * ($weight - 1); |
| 2129 |
} |
| 2130 |
|
| 2131 |
return $this->fixColor($new); |
| 2132 |
} |
| 2133 |
|
| 2134 |
protected static $lib_hsl = array("hue", "saturation", "lightness"); |
| 2135 |
protected function lib_hsl($args) { |
| 2136 |
list($h, $s, $l) = $args; |
| 2137 |
return $this->toRGB($h[1], $s[1], $l[1]); |
| 2138 |
} |
| 2139 |
|
| 2140 |
protected static $lib_hsla = array("hue", "saturation", |
| 2141 |
"lightness", "alpha"); |
| 2142 |
protected function lib_hsla($args) { |
| 2143 |
list($h, $s, $l, $a) = $args; |
| 2144 |
$color = $this->toRGB($h[1], $s[1], $l[1]); |
| 2145 |
$color[4] = $a[1]; |
| 2146 |
return $color; |
| 2147 |
} |
| 2148 |
|
| 2149 |
protected static $lib_hue = array("color"); |
| 2150 |
protected function lib_hue($args) { |
| 2151 |
$color = $this->assertColor($args[0]); |
| 2152 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2153 |
return array("number", $hsl[1], "deg"); |
| 2154 |
} |
| 2155 |
|
| 2156 |
protected static $lib_saturation = array("color"); |
| 2157 |
protected function lib_saturation($args) { |
| 2158 |
$color = $this->assertColor($args[0]); |
| 2159 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2160 |
return array("number", $hsl[2], "%"); |
| 2161 |
} |
| 2162 |
|
| 2163 |
protected static $lib_lightness = array("color"); |
| 2164 |
protected function lib_lightness($args) { |
| 2165 |
$color = $this->assertColor($args[0]); |
| 2166 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2167 |
return array("number", $hsl[3], "%"); |
| 2168 |
} |
| 2169 |
|
| 2170 |
protected function adjustHsl($color, $idx, $amount) { |
| 2171 |
$hsl = $this->toHSL($color[1], $color[2], $color[3]); |
| 2172 |
$hsl[$idx] += $amount; |
| 2173 |
$out = $this->toRGB($hsl[1], $hsl[2], $hsl[3]); |
| 2174 |
if (isset($color[4])) $out[4] = $color[4]; |
| 2175 |
return $out; |
| 2176 |
} |
| 2177 |
|
| 2178 |
protected static $lib_adjust_hue = array("color", "degrees"); |
| 2179 |
protected function lib_adjust_hue($args) { |
| 2180 |
$color = $this->assertColor($args[0]); |
| 2181 |
$degrees = $this->assertNumber($args[1]); |
| 2182 |
return $this->adjustHsl($color, 1, $degrees); |
| 2183 |
} |
| 2184 |
|
| 2185 |
protected static $lib_lighten = array("color", "amount"); |
| 2186 |
protected function lib_lighten($args) { |
| 2187 |
$color = $this->assertColor($args[0]); |
| 2188 |
$amount = 100*$this->coercePercent($args[1]); |
| 2189 |
return $this->adjustHsl($color, 3, $amount); |
| 2190 |
} |
| 2191 |
|
| 2192 |
protected static $lib_darken = array("color", "amount"); |
| 2193 |
protected function lib_darken($args) { |
| 2194 |
$color = $this->assertColor($args[0]); |
| 2195 |
$amount = 100*$this->coercePercent($args[1]); |
| 2196 |
return $this->adjustHsl($color, 3, -$amount); |
| 2197 |
} |
| 2198 |
|
| 2199 |
protected static $lib_saturate = array("color", "amount"); |
| 2200 |
protected function lib_saturate($args) { |
| 2201 |
$value = $args[0]; |
| 2202 |
if ($value[0] === 'number') return null; |
| 2203 |
$color = $this->assertColor($value); |
| 2204 |
$amount = 100*$this->coercePercent($args[1]); |
| 2205 |
return $this->adjustHsl($color, 2, $amount); |
| 2206 |
} |
| 2207 |
|
| 2208 |
protected static $lib_desaturate = array("color", "amount"); |
| 2209 |
protected function lib_desaturate($args) { |
| 2210 |
$color = $this->assertColor($args[0]); |
| 2211 |
$amount = 100*$this->coercePercent($args[1]); |
| 2212 |
return $this->adjustHsl($color, 2, -$amount); |
| 2213 |
} |
| 2214 |
|
| 2215 |
protected static $lib_grayscale = array("color"); |
| 2216 |
protected function lib_grayscale($args) { |
| 2217 |
$value = $args[0]; |
| 2218 |
if ($value[0] === 'number') return null; |
| 2219 |
return $this->adjustHsl($this->assertColor($value), 2, -100); |
| 2220 |
} |
| 2221 |
|
| 2222 |
protected static $lib_complement = array("color"); |
| 2223 |
protected function lib_complement($args) { |
| 2224 |
return $this->adjustHsl($this->assertColor($args[0]), 1, 180); |
| 2225 |
} |
| 2226 |
|
| 2227 |
protected static $lib_invert = array("color"); |
| 2228 |
protected function lib_invert($args) { |
| 2229 |
$value = $args[0]; |
| 2230 |
if ($value[0] === 'number') return null; |
| 2231 |
$color = $this->assertColor($value); |
| 2232 |
$color[1] = 255 - $color[1]; |
| 2233 |
$color[2] = 255 - $color[2]; |
| 2234 |
$color[3] = 255 - $color[3]; |
| 2235 |
return $color; |
| 2236 |
} |
| 2237 |
|
| 2238 |
// increases opacity by amount |
| 2239 |
protected static $lib_opacify = array("color", "amount"); |
| 2240 |
protected function lib_opacify($args) { |
| 2241 |
$color = $this->assertColor($args[0]); |
| 2242 |
$amount = $this->coercePercent($args[1]); |
| 2243 |
|
| 2244 |
$color[4] = (isset($color[4]) ? $color[4] : 1) + $amount; |
| 2245 |
$color[4] = min(1, max(0, $color[4])); |
| 2246 |
return $color; |
| 2247 |
} |
| 2248 |
|
| 2249 |
protected static $lib_fade_in = array("color", "amount"); |
| 2250 |
protected function lib_fade_in($args) { |
| 2251 |
return $this->lib_opacify($args); |
| 2252 |
} |
| 2253 |
|
| 2254 |
// decreases opacity by amount |
| 2255 |
protected static $lib_transparentize = array("color", "amount"); |
| 2256 |
protected function lib_transparentize($args) { |
| 2257 |
$color = $this->assertColor($args[0]); |
| 2258 |
$amount = $this->coercePercent($args[1]); |
| 2259 |
|
| 2260 |
$color[4] = (isset($color[4]) ? $color[4] : 1) - $amount; |
| 2261 |
$color[4] = min(1, max(0, $color[4])); |
| 2262 |
return $color; |
| 2263 |
} |
| 2264 |
|
| 2265 |
protected static $lib_fade_out = array("color", "amount"); |
| 2266 |
protected function lib_fade_out($args) { |
| 2267 |
return $this->lib_transparentize($args); |
| 2268 |
} |
| 2269 |
|
| 2270 |
protected static $lib_unquote = array("string"); |
| 2271 |
protected function lib_unquote($args) { |
| 2272 |
$str = $args[0]; |
| 2273 |
if ($str[0] == "string") $str[1] = ""; |
| 2274 |
return $str; |
| 2275 |
} |
| 2276 |
|
| 2277 |
protected static $lib_quote = array("string"); |
| 2278 |
protected function lib_quote($args) { |
| 2279 |
$value = $args[0]; |
| 2280 |
if ($value[0] == "string" && !empty($value[1])) |
| 2281 |
return $value; |
| 2282 |
return array("string", '"', array($value)); |
| 2283 |
} |
| 2284 |
|
| 2285 |
protected static $lib_percentage = array("value"); |
| 2286 |
protected function lib_percentage($args) { |
| 2287 |
return array("number", |
| 2288 |
$this->coercePercent($args[0]) * 100, |
| 2289 |
"%"); |
| 2290 |
} |
| 2291 |
|
| 2292 |
protected static $lib_round = array("value"); |
| 2293 |
protected function lib_round($args) { |
| 2294 |
$num = $args[0]; |
| 2295 |
$num[1] = round($num[1]); |
| 2296 |
return $num; |
| 2297 |
} |
| 2298 |
|
| 2299 |
protected static $lib_floor = array("value"); |
| 2300 |
protected function lib_floor($args) { |
| 2301 |
$num = $args[0]; |
| 2302 |
$num[1] = floor($num[1]); |
| 2303 |
return $num; |
| 2304 |
} |
| 2305 |
|
| 2306 |
protected static $lib_ceil = array("value"); |
| 2307 |
protected function lib_ceil($args) { |
| 2308 |
$num = $args[0]; |
| 2309 |
$num[1] = ceil($num[1]); |
| 2310 |
return $num; |
| 2311 |
} |
| 2312 |
|
| 2313 |
protected static $lib_abs = array("value"); |
| 2314 |
protected function lib_abs($args) { |
| 2315 |
$num = $args[0]; |
| 2316 |
$num[1] = abs($num[1]); |
| 2317 |
return $num; |
| 2318 |
} |
| 2319 |
|
| 2320 |
protected function lib_min($args) { |
| 2321 |
$numbers = $this->getNormalizedNumbers($args); |
| 2322 |
$min = null; |
| 2323 |
foreach ($numbers as $key => $number) { |
| 2324 |
if (null === $min || $number[1] <= $min[1]) { |
| 2325 |
$min = array($key, $number[1]); |
| 2326 |
} |
| 2327 |
} |
| 2328 |
|
| 2329 |
return $args[$min[0]]; |
| 2330 |
} |
| 2331 |
|
| 2332 |
protected function lib_max($args) { |
| 2333 |
$numbers = $this->getNormalizedNumbers($args); |
| 2334 |
$max = null; |
| 2335 |
foreach ($numbers as $key => $number) { |
| 2336 |
if (null === $max || $number[1] >= $max[1]) { |
| 2337 |
$max = array($key, $number[1]); |
| 2338 |
} |
| 2339 |
} |
| 2340 |
|
| 2341 |
return $args[$max[0]]; |
| 2342 |
} |
| 2343 |
|
| 2344 |
protected function getNormalizedNumbers($args) { |
| 2345 |
$unit = null; |
| 2346 |
$originalUnit = null; |
| 2347 |
$numbers = array(); |
| 2348 |
foreach ($args as $key => $item) { |
| 2349 |
if ('number' != $item[0]) { |
| 2350 |
$this->throwError("%s is not a number", $item[0]); |
| 2351 |
} |
| 2352 |
$number = $this->normalizeNumber($item); |
| 2353 |
|
| 2354 |
if (null === $unit) { |
| 2355 |
$unit = $number[2]; |
| 2356 |
$originalUnit = $item[2]; |
| 2357 |
} elseif ($unit !== $number[2]) { |
| 2358 |
$this->throwError('Incompatible units: "%s" and "%s".', $originalUnit, $item[2]); |
| 2359 |
} |
| 2360 |
|
| 2361 |
$numbers[$key] = $number; |
| 2362 |
} |
| 2363 |
|
| 2364 |
return $numbers; |
| 2365 |
} |
| 2366 |
|
| 2367 |
protected static $lib_length = array("list"); |
| 2368 |
protected function lib_length($args) { |
| 2369 |
$list = $this->coerceList($args[0]); |
| 2370 |
return count($list[2]); |
| 2371 |
} |
| 2372 |
|
| 2373 |
protected static $lib_nth = array("list", "n"); |
| 2374 |
protected function lib_nth($args) { |
| 2375 |
$list = $this->coerceList($args[0]); |
| 2376 |
$n = $this->assertNumber($args[1]) - 1; |
| 2377 |
return isset($list[2][$n]) ? $list[2][$n] : self::$defaultValue; |
| 2378 |
} |
| 2379 |
|
| 2380 |
protected function listSeparatorForJoin($list1, $sep) { |
| 2381 |
if (!isset($sep)) return $list1[1]; |
| 2382 |
switch ($this->compileValue($sep)) { |
| 2383 |
case "comma": |
| 2384 |
return ","; |
| 2385 |
case "space": |
| 2386 |
return ""; |
| 2387 |
default: |
| 2388 |
return $list1[1]; |
| 2389 |
} |
| 2390 |
} |
| 2391 |
|
| 2392 |
protected static $lib_join = array("list1", "list2", "separator"); |
| 2393 |
protected function lib_join($args) { |
| 2394 |
list($list1, $list2, $sep) = $args; |
| 2395 |
$list1 = $this->coerceList($list1, " "); |
| 2396 |
$list2 = $this->coerceList($list2, " "); |
| 2397 |
$sep = $this->listSeparatorForJoin($list1, $sep); |
| 2398 |
return array("list", $sep, array_merge($list1[2], $list2[2])); |
| 2399 |
} |
| 2400 |
|
| 2401 |
protected static $lib_append = array("list", "val", "separator"); |
| 2402 |
protected function lib_append($args) { |
| 2403 |
list($list1, $value, $sep) = $args; |
| 2404 |
$list1 = $this->coerceList($list1, " "); |
| 2405 |
$sep = $this->listSeparatorForJoin($list1, $sep); |
| 2406 |
return array("list", $sep, array_merge($list1[2], array($value))); |
| 2407 |
} |
| 2408 |
|
| 2409 |
protected function lib_zip($args) { |
| 2410 |
foreach ($args as $arg) { |
| 2411 |
$this->assertList($arg); |
| 2412 |
} |
| 2413 |
|
| 2414 |
$lists = array(); |
| 2415 |
$firstList = array_shift($args); |
| 2416 |
foreach ($firstList[2] as $key => $item) { |
| 2417 |
$list = array("list", "", array($item)); |
| 2418 |
foreach ($args as $arg) { |
| 2419 |
if (isset($arg[2][$key])) { |
| 2420 |
$list[2][] = $arg[2][$key]; |
| 2421 |
} else { |
| 2422 |
break 2; |
| 2423 |
} |
| 2424 |
} |
| 2425 |
$lists[] = $list; |
| 2426 |
} |
| 2427 |
|
| 2428 |
return array("list", ",", $lists); |
| 2429 |
} |
| 2430 |
|
| 2431 |
protected static $lib_type_of = array("value"); |
| 2432 |
protected function lib_type_of($args) { |
| 2433 |
$value = $args[0]; |
| 2434 |
switch ($value[0]) { |
| 2435 |
case "keyword": |
| 2436 |
if ($value == self::$true || $value == self::$false) { |
| 2437 |
return "bool"; |
| 2438 |
} |
| 2439 |
|
| 2440 |
if ($this->coerceColor($value)) { |
| 2441 |
return "color"; |
| 2442 |
} |
| 2443 |
|
| 2444 |
return "string"; |
| 2445 |
default: |
| 2446 |
return $value[0]; |
| 2447 |
} |
| 2448 |
} |
| 2449 |
|
| 2450 |
protected static $lib_unit = array("number"); |
| 2451 |
protected function lib_unit($args) { |
| 2452 |
$num = $args[0]; |
| 2453 |
if ($num[0] == "number") { |
| 2454 |
return array("string", '"', array($num[2])); |
| 2455 |
} |
| 2456 |
return ""; |
| 2457 |
} |
| 2458 |
|
| 2459 |
protected static $lib_unitless = array("number"); |
| 2460 |
protected function lib_unitless($args) { |
| 2461 |
$value = $args[0]; |
| 2462 |
return $value[0] == "number" && empty($value[2]); |
| 2463 |
} |
| 2464 |
|
| 2465 |
protected static $lib_comparable = array("number-1", "number-2"); |
| 2466 |
protected function lib_comparable($args) { |
| 2467 |
list($number1, $number2) = $args; |
| 2468 |
if (!isset($number1[0]) || $number1[0] != "number" || !isset($number2[0]) || $number2[0] != "number") { |
| 2469 |
$this->throwError('Invalid argument(s) for "comparable"'); |
| 2470 |
} |
| 2471 |
|
| 2472 |
$number1 = $this->normalizeNumber($number1); |
| 2473 |
$number2 = $this->normalizeNumber($number2); |
| 2474 |
|
| 2475 |
return $number1[2] == $number2[2] || $number1[2] == "" || $number2[2] == ""; |
| 2476 |
} |
| 2477 |
|
| 2478 |
/** |
| 2479 |
* Workaround IE7's content counter bug. |
| 2480 |
* |
| 2481 |
* @param array $args |
| 2482 |
*/ |
| 2483 |
protected function lib_counter($args) { |
| 2484 |
$list = array_map(array($this, 'compileValue'), $args); |
| 2485 |
return array('string', '', array('counter(' . implode(',', $list) . ')')); |
| 2486 |
} |
| 2487 |
|
| 2488 |
public function throwError($msg = null) { |
| 2489 |
if (func_num_args() > 1) { |
| 2490 |
$msg = call_user_func_array("sprintf", func_get_args()); |
| 2491 |
} |
| 2492 |
|
| 2493 |
if ($this->sourcePos >= 0 && isset($this->sourceParser)) { |
| 2494 |
$this->sourceParser->throwParseError($msg, $this->sourcePos); |
| 2495 |
} |
| 2496 |
|
| 2497 |
throw new Exception($msg); |
| 2498 |
} |
| 2499 |
|
| 2500 |
/** |
| 2501 |
* CSS Colors |
| 2502 |
* |
| 2503 |
* @see http://www.w3.org/TR/css3-color |
| 2504 |
*/ |
| 2505 |
static protected $cssColors = array( |
| 2506 |
'aliceblue' => '240,248,255', |
| 2507 |
'antiquewhite' => '250,235,215', |
| 2508 |
'aqua' => '0,255,255', |
| 2509 |
'aquamarine' => '127,255,212', |
| 2510 |
'azure' => '240,255,255', |
| 2511 |
'beige' => '245,245,220', |
| 2512 |
'bisque' => '255,228,196', |
| 2513 |
'black' => '0,0,0', |
| 2514 |
'blanchedalmond' => '255,235,205', |
| 2515 |
'blue' => '0,0,255', |
| 2516 |
'blueviolet' => '138,43,226', |
| 2517 |
'brown' => '165,42,42', |
| 2518 |
'burlywood' => '222,184,135', |
| 2519 |
'cadetblue' => '95,158,160', |
| 2520 |
'chartreuse' => '127,255,0', |
| 2521 |
'chocolate' => '210,105,30', |
| 2522 |
'coral' => '255,127,80', |
| 2523 |
'cornflowerblue' => '100,149,237', |
| 2524 |
'cornsilk' => '255,248,220', |
| 2525 |
'crimson' => '220,20,60', |
| 2526 |
'cyan' => '0,255,255', |
| 2527 |
'darkblue' => '0,0,139', |
| 2528 |
'darkcyan' => '0,139,139', |
| 2529 |
'darkgoldenrod' => '184,134,11', |
| 2530 |
'darkgray' => '169,169,169', |
| 2531 |
'darkgreen' => '0,100,0', |
| 2532 |
'darkgrey' => '169,169,169', |
| 2533 |
'darkkhaki' => '189,183,107', |
| 2534 |
'darkmagenta' => '139,0,139', |
| 2535 |
'darkolivegreen' => '85,107,47', |
| 2536 |
'darkorange' => '255,140,0', |
| 2537 |
'darkorchid' => '153,50,204', |
| 2538 |
'darkred' => '139,0,0', |
| 2539 |
'darksalmon' => '233,150,122', |
| 2540 |
'darkseagreen' => '143,188,143', |
| 2541 |
'darkslateblue' => '72,61,139', |
| 2542 |
'darkslategray' => '47,79,79', |
| 2543 |
'darkslategrey' => '47,79,79', |
| 2544 |
'darkturquoise' => '0,206,209', |
| 2545 |
'darkviolet' => '148,0,211', |
| 2546 |
'deeppink' => '255,20,147', |
| 2547 |
'deepskyblue' => '0,191,255', |
| 2548 |
'dimgray' => '105,105,105', |
| 2549 |
'dimgrey' => '105,105,105', |
| 2550 |
'dodgerblue' => '30,144,255', |
| 2551 |
'firebrick' => '178,34,34', |
| 2552 |
'floralwhite' => '255,250,240', |
| 2553 |
'forestgreen' => '34,139,34', |
| 2554 |
'fuchsia' => '255,0,255', |
| 2555 |
'gainsboro' => '220,220,220', |
| 2556 |
'ghostwhite' => '248,248,255', |
| 2557 |
'gold' => '255,215,0', |
| 2558 |
'goldenrod' => '218,165,32', |
| 2559 |
'gray' => '128,128,128', |
| 2560 |
'green' => '0,128,0', |
| 2561 |
'greenyellow' => '173,255,47', |
| 2562 |
'grey' => '128,128,128', |
| 2563 |
'honeydew' => '240,255,240', |
| 2564 |
'hotpink' => '255,105,180', |
| 2565 |
'indianred' => '205,92,92', |
| 2566 |
'indigo' => '75,0,130', |
| 2567 |
'ivory' => '255,255,240', |
| 2568 |
'khaki' => '240,230,140', |
| 2569 |
'lavender' => '230,230,250', |
| 2570 |
'lavenderblush' => '255,240,245', |
| 2571 |
'lawngreen' => '124,252,0', |
| 2572 |
'lemonchiffon' => '255,250,205', |
| 2573 |
'lightblue' => '173,216,230', |
| 2574 |
'lightcoral' => '240,128,128', |
| 2575 |
'lightcyan' => '224,255,255', |
| 2576 |
'lightgoldenrodyellow' => '250,250,210', |
| 2577 |
'lightgray' => '211,211,211', |
| 2578 |
'lightgreen' => '144,238,144', |
| 2579 |
'lightgrey' => '211,211,211', |
| 2580 |
'lightpink' => '255,182,193', |
| 2581 |
'lightsalmon' => '255,160,122', |
| 2582 |
'lightseagreen' => '32,178,170', |
| 2583 |
'lightskyblue' => '135,206,250', |
| 2584 |
'lightslategray' => '119,136,153', |
| 2585 |
'lightslategrey' => '119,136,153', |
| 2586 |
'lightsteelblue' => '176,196,222', |
| 2587 |
'lightyellow' => '255,255,224', |
| 2588 |
'lime' => '0,255,0', |
| 2589 |
'limegreen' => '50,205,50', |
| 2590 |
'linen' => '250,240,230', |
| 2591 |
'magenta' => '255,0,255', |
| 2592 |
'maroon' => '128,0,0', |
| 2593 |
'mediumaquamarine' => '102,205,170', |
| 2594 |
'mediumblue' => '0,0,205', |
| 2595 |
'mediumorchid' => '186,85,211', |
| 2596 |
'mediumpurple' => '147,112,219', |
| 2597 |
'mediumseagreen' => '60,179,113', |
| 2598 |
'mediumslateblue' => '123,104,238', |
| 2599 |
'mediumspringgreen' => '0,250,154', |
| 2600 |
'mediumturquoise' => '72,209,204', |
| 2601 |
'mediumvioletred' => '199,21,133', |
| 2602 |
'midnightblue' => '25,25,112', |
| 2603 |
'mintcream' => '245,255,250', |
| 2604 |
'mistyrose' => '255,228,225', |
| 2605 |
'moccasin' => '255,228,181', |
| 2606 |
'navajowhite' => '255,222,173', |
| 2607 |
'navy' => '0,0,128', |
| 2608 |
'oldlace' => '253,245,230', |
| 2609 |
'olive' => '128,128,0', |
| 2610 |
'olivedrab' => '107,142,35', |
| 2611 |
'orange' => '255,165,0', |
| 2612 |
'orangered' => '255,69,0', |
| 2613 |
'orchid' => '218,112,214', |
| 2614 |
'palegoldenrod' => '238,232,170', |
| 2615 |
'palegreen' => '152,251,152', |
| 2616 |
'paleturquoise' => '175,238,238', |
| 2617 |
'palevioletred' => '219,112,147', |
| 2618 |
'papayawhip' => '255,239,213', |
| 2619 |
'peachpuff' => '255,218,185', |
| 2620 |
'peru' => '205,133,63', |
| 2621 |
'pink' => '255,192,203', |
| 2622 |
'plum' => '221,160,221', |
| 2623 |
'powderblue' => '176,224,230', |
| 2624 |
'purple' => '128,0,128', |
| 2625 |
'red' => '255,0,0', |
| 2626 |
'rosybrown' => '188,143,143', |
| 2627 |
'royalblue' => '65,105,225', |
| 2628 |
'saddlebrown' => '139,69,19', |
| 2629 |
'salmon' => '250,128,114', |
| 2630 |
'sandybrown' => '244,164,96', |
| 2631 |
'seagreen' => '46,139,87', |
| 2632 |
'seashell' => '255,245,238', |
| 2633 |
'sienna' => '160,82,45', |
| 2634 |
'silver' => '192,192,192', |
| 2635 |
'skyblue' => '135,206,235', |
| 2636 |
'slateblue' => '106,90,205', |
| 2637 |
'slategray' => '112,128,144', |
| 2638 |
'slategrey' => '112,128,144', |
| 2639 |
'snow' => '255,250,250', |
| 2640 |
'springgreen' => '0,255,127', |
| 2641 |
'steelblue' => '70,130,180', |
| 2642 |
'tan' => '210,180,140', |
| 2643 |
'teal' => '0,128,128', |
| 2644 |
'thistle' => '216,191,216', |
| 2645 |
'tomato' => '255,99,71', |
| 2646 |
'transparent' => '0,0,0,0', |
| 2647 |
'turquoise' => '64,224,208', |
| 2648 |
'violet' => '238,130,238', |
| 2649 |
'wheat' => '245,222,179', |
| 2650 |
'white' => '255,255,255', |
| 2651 |
'whitesmoke' => '245,245,245', |
| 2652 |
'yellow' => '255,255,0', |
| 2653 |
'yellowgreen' => '154,205,50' |
| 2654 |
); |
| 2655 |
} |
| 2656 |
|
| 2657 |
/** |
| 2658 |
* SCSS parser |
| 2659 |
* |
| 2660 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 2661 |
*/ |
| 2662 |
class scss_parser { |
| 2663 |
static protected $precedence = array( |
| 2664 |
"or" => 0, |
| 2665 |
"and" => 1, |
| 2666 |
|
| 2667 |
'==' => 2, |
| 2668 |
'!=' => 2, |
| 2669 |
'<=' => 2, |
| 2670 |
'>=' => 2, |
| 2671 |
'=' => 2, |
| 2672 |
'<' => 3, |
| 2673 |
'>' => 2, |
| 2674 |
|
| 2675 |
'+' => 3, |
| 2676 |
'-' => 3, |
| 2677 |
'*' => 4, |
| 2678 |
'/' => 4, |
| 2679 |
'%' => 4, |
| 2680 |
); |
| 2681 |
|
| 2682 |
static protected $operators = array("+", "-", "*", "/", "%", |
| 2683 |
"==", "!=", "<=", ">=", "<", ">", "and", "or"); |
| 2684 |
|
| 2685 |
static protected $operatorStr; |
| 2686 |
static protected $whitePattern; |
| 2687 |
static protected $commentMulti; |
| 2688 |
|
| 2689 |
static protected $commentSingle = "//"; |
| 2690 |
static protected $commentMultiLeft = "/*"; |
| 2691 |
static protected $commentMultiRight = "*/"; |
| 2692 |
|
| 2693 |
/** |
| 2694 |
* Constructor |
| 2695 |
* |
| 2696 |
* @param string $sourceName |
| 2697 |
* @param boolean $rootParser |
| 2698 |
*/ |
| 2699 |
public function __construct($sourceName = null, $rootParser = true) { |
| 2700 |
$this->sourceName = $sourceName; |
| 2701 |
$this->rootParser = $rootParser; |
| 2702 |
|
| 2703 |
if (empty(self::$operatorStr)) { |
| 2704 |
self::$operatorStr = $this->makeOperatorStr(self::$operators); |
| 2705 |
|
| 2706 |
$commentSingle = $this->preg_quote(self::$commentSingle); |
| 2707 |
$commentMultiLeft = $this->preg_quote(self::$commentMultiLeft); |
| 2708 |
$commentMultiRight = $this->preg_quote(self::$commentMultiRight); |
| 2709 |
self::$commentMulti = $commentMultiLeft.'.*?'.$commentMultiRight; |
| 2710 |
self::$whitePattern = '/'.$commentSingle.'[^\n]*\s*|('.self::$commentMulti.')\s*|\s+/Ais'; |
| 2711 |
} |
| 2712 |
} |
| 2713 |
|
| 2714 |
static protected function makeOperatorStr($operators) { |
| 2715 |
return '('.implode('|', array_map(array('scss_parser','preg_quote'), |
| 2716 |
$operators)).')'; |
| 2717 |
} |
| 2718 |
|
| 2719 |
/** |
| 2720 |
* Parser buffer |
| 2721 |
* |
| 2722 |
* @param string $buffer; |
| 2723 |
* |
| 2724 |
* @return \StdClass |
| 2725 |
*/ |
| 2726 |
public function parse($buffer) |
| 2727 |
{ |
| 2728 |
$this->count = 0; |
| 2729 |
$this->env = null; |
| 2730 |
$this->inParens = false; |
| 2731 |
$this->eatWhiteDefault = true; |
| 2732 |
$this->insertComments = true; |
| 2733 |
$this->buffer = $buffer; |
| 2734 |
|
| 2735 |
$this->pushBlock(null); // root block |
| 2736 |
$this->whitespace(); |
| 2737 |
|
| 2738 |
while (false !== $this->parseChunk()) |
| 2739 |
; |
| 2740 |
|
| 2741 |
if ($this->count != strlen($this->buffer)) { |
| 2742 |
$this->throwParseError(); |
| 2743 |
} |
| 2744 |
|
| 2745 |
if (!empty($this->env->parent)) { |
| 2746 |
$this->throwParseError("unclosed block"); |
| 2747 |
} |
| 2748 |
|
| 2749 |
$this->env->isRoot = true; |
| 2750 |
|
| 2751 |
return $this->env; |
| 2752 |
} |
| 2753 |
|
| 2754 |
/** |
| 2755 |
* Parse a single chunk off the head of the buffer and append it to the |
| 2756 |
* current parse environment. |
| 2757 |
* |
| 2758 |
* Returns false when the buffer is empty, or when there is an error. |
| 2759 |
* |
| 2760 |
* This function is called repeatedly until the entire document is |
| 2761 |
* parsed. |
| 2762 |
* |
| 2763 |
* This parser is most similar to a recursive descent parser. Single |
| 2764 |
* functions represent discrete grammatical rules for the language, and |
| 2765 |
* they are able to capture the text that represents those rules. |
| 2766 |
* |
| 2767 |
* Consider the function scssc::keyword(). (All parse functions are |
| 2768 |
* structured the same.) |
| 2769 |
* |
| 2770 |
* The function takes a single reference argument. When calling the |
| 2771 |
* function it will attempt to match a keyword on the head of the buffer. |
| 2772 |
* If it is successful, it will place the keyword in the referenced |
| 2773 |
* argument, advance the position in the buffer, and return true. If it |
| 2774 |
* fails then it won't advance the buffer and it will return false. |
| 2775 |
* |
| 2776 |
* All of these parse functions are powered by scssc::match(), which behaves |
| 2777 |
* the same way, but takes a literal regular expression. Sometimes it is |
| 2778 |
* more convenient to use match instead of creating a new function. |
| 2779 |
* |
| 2780 |
* Because of the format of the functions, to parse an entire string of |
| 2781 |
* grammatical rules, you can chain them together using &&. |
| 2782 |
* |
| 2783 |
* But, if some of the rules in the chain succeed before one fails, then |
| 2784 |
* the buffer position will be left at an invalid state. In order to |
| 2785 |
* avoid this, scssc::seek() is used to remember and set buffer positions. |
| 2786 |
* |
| 2787 |
* Before parsing a chain, use $s = $this->seek() to remember the current |
| 2788 |
* position into $s. Then if a chain fails, use $this->seek($s) to |
| 2789 |
* go back where we started. |
| 2790 |
* |
| 2791 |
* @return boolean |
| 2792 |
*/ |
| 2793 |
protected function parseChunk() { |
| 2794 |
$s = $this->seek(); |
| 2795 |
|
| 2796 |
// the directives |
| 2797 |
if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "@") { |
| 2798 |
if ($this->literal("@media") && $this->mediaQueryList($mediaQueryList) && $this->literal("{")) { |
| 2799 |
$media = $this->pushSpecialBlock("media"); |
| 2800 |
$media->queryList = $mediaQueryList[2]; |
| 2801 |
return true; |
| 2802 |
} else { |
| 2803 |
$this->seek($s); |
| 2804 |
} |
| 2805 |
|
| 2806 |
if ($this->literal("@mixin") && |
| 2807 |
$this->keyword($mixinName) && |
| 2808 |
($this->argumentDef($args) || true) && |
| 2809 |
$this->literal("{")) |
| 2810 |
{ |
| 2811 |
$mixin = $this->pushSpecialBlock("mixin"); |
| 2812 |
$mixin->name = $mixinName; |
| 2813 |
$mixin->args = $args; |
| 2814 |
return true; |
| 2815 |
} else { |
| 2816 |
$this->seek($s); |
| 2817 |
} |
| 2818 |
|
| 2819 |
if ($this->literal("@include") && |
| 2820 |
$this->keyword($mixinName) && |
| 2821 |
($this->literal("(") && |
| 2822 |
($this->argValues($argValues) || true) && |
| 2823 |
$this->literal(")") || true) && |
| 2824 |
($this->end() || |
| 2825 |
$this->literal("{") && $hasBlock = true)) |
| 2826 |
{ |
| 2827 |
$child = array("include", |
| 2828 |
$mixinName, isset($argValues) ? $argValues : null, null); |
| 2829 |
|
| 2830 |
if (!empty($hasBlock)) { |
| 2831 |
$include = $this->pushSpecialBlock("include"); |
| 2832 |
$include->child = $child; |
| 2833 |
} else { |
| 2834 |
$this->append($child, $s); |
| 2835 |
} |
| 2836 |
|
| 2837 |
return true; |
| 2838 |
} else { |
| 2839 |
$this->seek($s); |
| 2840 |
} |
| 2841 |
|
| 2842 |
if ($this->literal("@import") && |
| 2843 |
$this->valueList($importPath) && |
| 2844 |
$this->end()) |
| 2845 |
{ |
| 2846 |
$this->append(array("import", $importPath), $s); |
| 2847 |
return true; |
| 2848 |
} else { |
| 2849 |
$this->seek($s); |
| 2850 |
} |
| 2851 |
|
| 2852 |
if ($this->literal("@extend") && |
| 2853 |
$this->selectors($selector) && |
| 2854 |
$this->end()) |
| 2855 |
{ |
| 2856 |
$this->append(array("extend", $selector), $s); |
| 2857 |
return true; |
| 2858 |
} else { |
| 2859 |
$this->seek($s); |
| 2860 |
} |
| 2861 |
|
| 2862 |
if ($this->literal("@function") && |
| 2863 |
$this->keyword($fnName) && |
| 2864 |
$this->argumentDef($args) && |
| 2865 |
$this->literal("{")) |
| 2866 |
{ |
| 2867 |
$func = $this->pushSpecialBlock("function"); |
| 2868 |
$func->name = $fnName; |
| 2869 |
$func->args = $args; |
| 2870 |
return true; |
| 2871 |
} else { |
| 2872 |
$this->seek($s); |
| 2873 |
} |
| 2874 |
|
| 2875 |
if ($this->literal("@return") && $this->valueList($retVal) && $this->end()) { |
| 2876 |
$this->append(array("return", $retVal), $s); |
| 2877 |
return true; |
| 2878 |
} else { |
| 2879 |
$this->seek($s); |
| 2880 |
} |
| 2881 |
|
| 2882 |
if ($this->literal("@each") && |
| 2883 |
$this->variable($varName) && |
| 2884 |
$this->literal("in") && |
| 2885 |
$this->valueList($list) && |
| 2886 |
$this->literal("{")) |
| 2887 |
{ |
| 2888 |
$each = $this->pushSpecialBlock("each"); |
| 2889 |
$each->var = $varName[1]; |
| 2890 |
$each->list = $list; |
| 2891 |
return true; |
| 2892 |
} else { |
| 2893 |
$this->seek($s); |
| 2894 |
} |
| 2895 |
|
| 2896 |
if ($this->literal("@while") && |
| 2897 |
$this->expression($cond) && |
| 2898 |
$this->literal("{")) |
| 2899 |
{ |
| 2900 |
$while = $this->pushSpecialBlock("while"); |
| 2901 |
$while->cond = $cond; |
| 2902 |
return true; |
| 2903 |
} else { |
| 2904 |
$this->seek($s); |
| 2905 |
} |
| 2906 |
|
| 2907 |
if ($this->literal("@for") && |
| 2908 |
$this->variable($varName) && |
| 2909 |
$this->literal("from") && |
| 2910 |
$this->expression($start) && |
| 2911 |
($this->literal("through") || |
| 2912 |
($forUntil = true && $this->literal("to"))) && |
| 2913 |
$this->expression($end) && |
| 2914 |
$this->literal("{")) |
| 2915 |
{ |
| 2916 |
$for = $this->pushSpecialBlock("for"); |
| 2917 |
$for->var = $varName[1]; |
| 2918 |
$for->start = $start; |
| 2919 |
$for->end = $end; |
| 2920 |
$for->until = isset($forUntil); |
| 2921 |
return true; |
| 2922 |
} else { |
| 2923 |
$this->seek($s); |
| 2924 |
} |
| 2925 |
|
| 2926 |
if ($this->literal("@if") && $this->valueList($cond) && $this->literal("{")) { |
| 2927 |
$if = $this->pushSpecialBlock("if"); |
| 2928 |
$if->cond = $cond; |
| 2929 |
$if->cases = array(); |
| 2930 |
return true; |
| 2931 |
} else { |
| 2932 |
$this->seek($s); |
| 2933 |
} |
| 2934 |
|
| 2935 |
if (($this->literal("@debug") || $this->literal("@warn")) && |
| 2936 |
$this->valueList($value) && |
| 2937 |
$this->end()) { |
| 2938 |
$this->append(array("debug", $value, $s), $s); |
| 2939 |
return true; |
| 2940 |
} else { |
| 2941 |
$this->seek($s); |
| 2942 |
} |
| 2943 |
|
| 2944 |
if ($this->literal("@content") && $this->end()) { |
| 2945 |
$this->append(array("mixin_content"), $s); |
| 2946 |
return true; |
| 2947 |
} else { |
| 2948 |
$this->seek($s); |
| 2949 |
} |
| 2950 |
|
| 2951 |
$last = $this->last(); |
| 2952 |
if (isset($last) && $last[0] == "if") { |
| 2953 |
list(, $if) = $last; |
| 2954 |
if ($this->literal("@else")) { |
| 2955 |
if ($this->literal("{")) { |
| 2956 |
$else = $this->pushSpecialBlock("else"); |
| 2957 |
} elseif ($this->literal("if") && $this->valueList($cond) && $this->literal("{")) { |
| 2958 |
$else = $this->pushSpecialBlock("elseif"); |
| 2959 |
$else->cond = $cond; |
| 2960 |
} |
| 2961 |
|
| 2962 |
if (isset($else)) { |
| 2963 |
$else->dontAppend = true; |
| 2964 |
$if->cases[] = $else; |
| 2965 |
return true; |
| 2966 |
} |
| 2967 |
} |
| 2968 |
|
| 2969 |
$this->seek($s); |
| 2970 |
} |
| 2971 |
|
| 2972 |
if ($this->literal("@charset") && |
| 2973 |
$this->valueList($charset) && $this->end()) |
| 2974 |
{ |
| 2975 |
$this->append(array("charset", $charset), $s); |
| 2976 |
return true; |
| 2977 |
} else { |
| 2978 |
$this->seek($s); |
| 2979 |
} |
| 2980 |
|
| 2981 |
// doesn't match built in directive, do generic one |
| 2982 |
if ($this->literal("@", false) && $this->keyword($dirName) && |
| 2983 |
($this->openString("{", $dirValue) || true) && |
| 2984 |
$this->literal("{")) |
| 2985 |
{ |
| 2986 |
$directive = $this->pushSpecialBlock("directive"); |
| 2987 |
$directive->name = $dirName; |
| 2988 |
if (isset($dirValue)) $directive->value = $dirValue; |
| 2989 |
return true; |
| 2990 |
} |
| 2991 |
|
| 2992 |
$this->seek($s); |
| 2993 |
return false; |
| 2994 |
} |
| 2995 |
|
| 2996 |
// property shortcut |
| 2997 |
// captures most properties before having to parse a selector |
| 2998 |
if ($this->keyword($name, false) && |
| 2999 |
$this->literal(": ") && |
| 3000 |
$this->valueList($value) && |
| 3001 |
$this->end()) |
| 3002 |
{ |
| 3003 |
$name = array("string", "", array($name)); |
| 3004 |
$this->append(array("assign", $name, $value), $s); |
| 3005 |
return true; |
| 3006 |
} else { |
| 3007 |
$this->seek($s); |
| 3008 |
} |
| 3009 |
|
| 3010 |
// variable assigns |
| 3011 |
if ($this->variable($name) && |
| 3012 |
$this->literal(":") && |
| 3013 |
$this->valueList($value) && $this->end()) |
| 3014 |
{ |
| 3015 |
// check for !default |
| 3016 |
$defaultVar = $value[0] == "list" && $this->stripDefault($value); |
| 3017 |
$this->append(array("assign", $name, $value, $defaultVar), $s); |
| 3018 |
return true; |
| 3019 |
} else { |
| 3020 |
$this->seek($s); |
| 3021 |
} |
| 3022 |
|
| 3023 |
// misc |
| 3024 |
if ($this->literal("-->")) { |
| 3025 |
return true; |
| 3026 |
} |
| 3027 |
|
| 3028 |
// opening css block |
| 3029 |
$oldComments = $this->insertComments; |
| 3030 |
$this->insertComments = false; |
| 3031 |
if ($this->selectors($selectors) && $this->literal("{")) { |
| 3032 |
$this->pushBlock($selectors); |
| 3033 |
$this->insertComments = $oldComments; |
| 3034 |
return true; |
| 3035 |
} else { |
| 3036 |
$this->seek($s); |
| 3037 |
} |
| 3038 |
$this->insertComments = $oldComments; |
| 3039 |
|
| 3040 |
// property assign, or nested assign |
| 3041 |
if ($this->propertyName($name) && $this->literal(":")) { |
| 3042 |
$foundSomething = false; |
| 3043 |
if ($this->valueList($value)) { |
| 3044 |
$this->append(array("assign", $name, $value), $s); |
| 3045 |
$foundSomething = true; |
| 3046 |
} |
| 3047 |
|
| 3048 |
if ($this->literal("{")) { |
| 3049 |
$propBlock = $this->pushSpecialBlock("nestedprop"); |
| 3050 |
$propBlock->prefix = $name; |
| 3051 |
$foundSomething = true; |
| 3052 |
} elseif ($foundSomething) { |
| 3053 |
$foundSomething = $this->end(); |
| 3054 |
} |
| 3055 |
|
| 3056 |
if ($foundSomething) { |
| 3057 |
return true; |
| 3058 |
} |
| 3059 |
|
| 3060 |
$this->seek($s); |
| 3061 |
} else { |
| 3062 |
$this->seek($s); |
| 3063 |
} |
| 3064 |
|
| 3065 |
// closing a block |
| 3066 |
if ($this->literal("}")) { |
| 3067 |
$block = $this->popBlock(); |
| 3068 |
if (isset($block->type) && $block->type == "include") { |
| 3069 |
$include = $block->child; |
| 3070 |
unset($block->child); |
| 3071 |
$include[3] = $block; |
| 3072 |
$this->append($include, $s); |
| 3073 |
} elseif (empty($block->dontAppend)) { |
| 3074 |
$type = isset($block->type) ? $block->type : "block"; |
| 3075 |
$this->append(array($type, $block), $s); |
| 3076 |
} |
| 3077 |
return true; |
| 3078 |
} |
| 3079 |
|
| 3080 |
// extra stuff |
| 3081 |
if ($this->literal(";") || |
| 3082 |
$this->literal("<!--")) |
| 3083 |
{ |
| 3084 |
return true; |
| 3085 |
} |
| 3086 |
|
| 3087 |
return false; |
| 3088 |
} |
| 3089 |
|
| 3090 |
protected function stripDefault(&$value) { |
| 3091 |
$def = end($value[2]); |
| 3092 |
if ($def[0] == "keyword" && $def[1] == "!default") { |
| 3093 |
array_pop($value[2]); |
| 3094 |
$value = $this->flattenList($value); |
| 3095 |
return true; |
| 3096 |
} |
| 3097 |
|
| 3098 |
if ($def[0] == "list") { |
| 3099 |
return $this->stripDefault($value[2][count($value[2]) - 1]); |
| 3100 |
} |
| 3101 |
|
| 3102 |
return false; |
| 3103 |
} |
| 3104 |
|
| 3105 |
protected function literal($what, $eatWhitespace = null) { |
| 3106 |
if (!isset($eatWhitespace)) $eatWhitespace = $this->eatWhiteDefault; |
| 3107 |
|
| 3108 |
// shortcut on single letter |
| 3109 |
if (!isset($what[1]) && isset($this->buffer[$this->count])) { |
| 3110 |
if ($this->buffer[$this->count] == $what) { |
| 3111 |
if (!$eatWhitespace) { |
| 3112 |
$this->count++; |
| 3113 |
return true; |
| 3114 |
} |
| 3115 |
// goes below... |
| 3116 |
} else { |
| 3117 |
return false; |
| 3118 |
} |
| 3119 |
} |
| 3120 |
|
| 3121 |
return $this->match($this->preg_quote($what), $m, $eatWhitespace); |
| 3122 |
} |
| 3123 |
|
| 3124 |
// tree builders |
| 3125 |
|
| 3126 |
protected function pushBlock($selectors) { |
| 3127 |
$b = new stdClass; |
| 3128 |
$b->parent = $this->env; // not sure if we need this yet |
| 3129 |
|
| 3130 |
$b->selectors = $selectors; |
| 3131 |
$b->children = array(); |
| 3132 |
|
| 3133 |
$this->env = $b; |
| 3134 |
return $b; |
| 3135 |
} |
| 3136 |
|
| 3137 |
protected function pushSpecialBlock($type) { |
| 3138 |
$block = $this->pushBlock(null); |
| 3139 |
$block->type = $type; |
| 3140 |
return $block; |
| 3141 |
} |
| 3142 |
|
| 3143 |
protected function popBlock() { |
| 3144 |
if (empty($this->env->parent)) { |
| 3145 |
$this->throwParseError("unexpected }"); |
| 3146 |
} |
| 3147 |
|
| 3148 |
$old = $this->env; |
| 3149 |
$this->env = $this->env->parent; |
| 3150 |
unset($old->parent); |
| 3151 |
return $old; |
| 3152 |
} |
| 3153 |
|
| 3154 |
protected function append($statement, $pos=null) { |
| 3155 |
if ($pos !== null) { |
| 3156 |
$statement[-1] = $pos; |
| 3157 |
if (!$this->rootParser) $statement[-2] = $this; |
| 3158 |
} |
| 3159 |
$this->env->children[] = $statement; |
| 3160 |
} |
| 3161 |
|
| 3162 |
// last child that was appended |
| 3163 |
protected function last() { |
| 3164 |
$i = count($this->env->children) - 1; |
| 3165 |
if (isset($this->env->children[$i])) |
| 3166 |
return $this->env->children[$i]; |
| 3167 |
} |
| 3168 |
|
| 3169 |
// high level parsers (they return parts of ast) |
| 3170 |
|
| 3171 |
protected function mediaQueryList(&$out) { |
| 3172 |
return $this->genericList($out, "mediaQuery", ",", false); |
| 3173 |
} |
| 3174 |
|
| 3175 |
protected function mediaQuery(&$out) { |
| 3176 |
$s = $this->seek(); |
| 3177 |
|
| 3178 |
$expressions = null; |
| 3179 |
$parts = array(); |
| 3180 |
|
| 3181 |
if (($this->literal("only") && ($only = true) || $this->literal("not") && ($not = true) || true) && $this->mixedKeyword($mediaType)) { |
| 3182 |
$prop = array("mediaType"); |
| 3183 |
if (isset($only)) $prop[] = array("keyword", "only"); |
| 3184 |
if (isset($not)) $prop[] = array("keyword", "not"); |
| 3185 |
$media = array("list", "", array()); |
| 3186 |
foreach ((array)$mediaType as $type) { |
| 3187 |
if (is_array($type)) { |
| 3188 |
$media[2][] = $type; |
| 3189 |
} else { |
| 3190 |
$media[2][] = array("keyword", $type); |
| 3191 |
} |
| 3192 |
} |
| 3193 |
$prop[] = $media; |
| 3194 |
$parts[] = $prop; |
| 3195 |
} |
| 3196 |
|
| 3197 |
if (empty($parts) || $this->literal("and")) { |
| 3198 |
$this->genericList($expressions, "mediaExpression", "and", false); |
| 3199 |
if (is_array($expressions)) $parts = array_merge($parts, $expressions[2]); |
| 3200 |
} |
| 3201 |
|
| 3202 |
$out = $parts; |
| 3203 |
return true; |
| 3204 |
} |
| 3205 |
|
| 3206 |
protected function mediaExpression(&$out) { |
| 3207 |
$s = $this->seek(); |
| 3208 |
$value = null; |
| 3209 |
if ($this->literal("(") && |
| 3210 |
$this->expression($feature) && |
| 3211 |
($this->literal(":") && $this->expression($value) || true) && |
| 3212 |
$this->literal(")")) |
| 3213 |
{ |
| 3214 |
$out = array("mediaExp", $feature); |
| 3215 |
if ($value) $out[] = $value; |
| 3216 |
return true; |
| 3217 |
} |
| 3218 |
|
| 3219 |
$this->seek($s); |
| 3220 |
return false; |
| 3221 |
} |
| 3222 |
|
| 3223 |
protected function argValues(&$out) { |
| 3224 |
if ($this->genericList($list, "argValue", ",", false)) { |
| 3225 |
$out = $list[2]; |
| 3226 |
return true; |
| 3227 |
} |
| 3228 |
return false; |
| 3229 |
} |
| 3230 |
|
| 3231 |
protected function argValue(&$out) { |
| 3232 |
$s = $this->seek(); |
| 3233 |
|
| 3234 |
$keyword = null; |
| 3235 |
if (!$this->variable($keyword) || !$this->literal(":")) { |
| 3236 |
$this->seek($s); |
| 3237 |
$keyword = null; |
| 3238 |
} |
| 3239 |
|
| 3240 |
if ($this->genericList($value, "expression")) { |
| 3241 |
$out = array($keyword, $value, false); |
| 3242 |
$s = $this->seek(); |
| 3243 |
if ($this->literal("...")) { |
| 3244 |
$out[2] = true; |
| 3245 |
} else { |
| 3246 |
$this->seek($s); |
| 3247 |
} |
| 3248 |
return true; |
| 3249 |
} |
| 3250 |
|
| 3251 |
return false; |
| 3252 |
} |
| 3253 |
|
| 3254 |
/** |
| 3255 |
* Parse list |
| 3256 |
* |
| 3257 |
* @param string $out |
| 3258 |
* |
| 3259 |
* @return boolean |
| 3260 |
*/ |
| 3261 |
public function valueList(&$out) |
| 3262 |
{ |
| 3263 |
return $this->genericList($out, 'spaceList', ','); |
| 3264 |
} |
| 3265 |
|
| 3266 |
protected function spaceList(&$out) |
| 3267 |
{ |
| 3268 |
return $this->genericList($out, 'expression'); |
| 3269 |
} |
| 3270 |
|
| 3271 |
protected function genericList(&$out, $parseItem, $delim="", $flatten=true) { |
| 3272 |
$s = $this->seek(); |
| 3273 |
$items = array(); |
| 3274 |
while ($this->$parseItem($value)) { |
| 3275 |
$items[] = $value; |
| 3276 |
if ($delim) { |
| 3277 |
if (!$this->literal($delim)) break; |
| 3278 |
} |
| 3279 |
} |
| 3280 |
|
| 3281 |
if (count($items) == 0) { |
| 3282 |
$this->seek($s); |
| 3283 |
return false; |
| 3284 |
} |
| 3285 |
|
| 3286 |
if ($flatten && count($items) == 1) { |
| 3287 |
$out = $items[0]; |
| 3288 |
} else { |
| 3289 |
$out = array("list", $delim, $items); |
| 3290 |
} |
| 3291 |
|
| 3292 |
return true; |
| 3293 |
} |
| 3294 |
|
| 3295 |
protected function expression(&$out) { |
| 3296 |
$s = $this->seek(); |
| 3297 |
|
| 3298 |
if ($this->literal("(")) { |
| 3299 |
if ($this->literal(")")) { |
| 3300 |
$out = array("list", "", array()); |
| 3301 |
return true; |
| 3302 |
} |
| 3303 |
|
| 3304 |
if ($this->valueList($out) && $this->literal(')') && $out[0] == "list") { |
| 3305 |
return true; |
| 3306 |
} |
| 3307 |
|
| 3308 |
$this->seek($s); |
| 3309 |
} |
| 3310 |
|
| 3311 |
if ($this->value($lhs)) { |
| 3312 |
$out = $this->expHelper($lhs, 0); |
| 3313 |
return true; |
| 3314 |
} |
| 3315 |
|
| 3316 |
return false; |
| 3317 |
} |
| 3318 |
|
| 3319 |
protected function expHelper($lhs, $minP) { |
| 3320 |
$opstr = self::$operatorStr; |
| 3321 |
|
| 3322 |
$ss = $this->seek(); |
| 3323 |
$whiteBefore = isset($this->buffer[$this->count - 1]) && |
| 3324 |
ctype_space($this->buffer[$this->count - 1]); |
| 3325 |
while ($this->match($opstr, $m) && self::$precedence[$m[1]] >= $minP) { |
| 3326 |
$whiteAfter = isset($this->buffer[$this->count - 1]) && |
| 3327 |
ctype_space($this->buffer[$this->count - 1]); |
| 3328 |
|
| 3329 |
$op = $m[1]; |
| 3330 |
|
| 3331 |
// don't turn negative numbers into expressions |
| 3332 |
if ($op == "-" && $whiteBefore) { |
| 3333 |
if (!$whiteAfter) break; |
| 3334 |
} |
| 3335 |
|
| 3336 |
if (!$this->value($rhs)) break; |
| 3337 |
|
| 3338 |
// peek and see if rhs belongs to next operator |
| 3339 |
if ($this->peek($opstr, $next) && self::$precedence[$next[1]] > self::$precedence[$op]) { |
| 3340 |
$rhs = $this->expHelper($rhs, self::$precedence[$next[1]]); |
| 3341 |
} |
| 3342 |
|
| 3343 |
$lhs = array("exp", $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter); |
| 3344 |
$ss = $this->seek(); |
| 3345 |
$whiteBefore = isset($this->buffer[$this->count - 1]) && |
| 3346 |
ctype_space($this->buffer[$this->count - 1]); |
| 3347 |
} |
| 3348 |
|
| 3349 |
$this->seek($ss); |
| 3350 |
return $lhs; |
| 3351 |
} |
| 3352 |
|
| 3353 |
protected function value(&$out) { |
| 3354 |
$s = $this->seek(); |
| 3355 |
|
| 3356 |
if ($this->literal("not", false) && $this->whitespace() && $this->value($inner)) { |
| 3357 |
$out = array("unary", "not", $inner, $this->inParens); |
| 3358 |
return true; |
| 3359 |
} else { |
| 3360 |
$this->seek($s); |
| 3361 |
} |
| 3362 |
|
| 3363 |
if ($this->literal("+") && $this->value($inner)) { |
| 3364 |
$out = array("unary", "+", $inner, $this->inParens); |
| 3365 |
return true; |
| 3366 |
} else { |
| 3367 |
$this->seek($s); |
| 3368 |
} |
| 3369 |
|
| 3370 |
// negation |
| 3371 |
if ($this->literal("-", false) && |
| 3372 |
($this->variable($inner) || |
| 3373 |
$this->unit($inner) || |
| 3374 |
$this->parenValue($inner))) |
| 3375 |
{ |
| 3376 |
$out = array("unary", "-", $inner, $this->inParens); |
| 3377 |
return true; |
| 3378 |
} else { |
| 3379 |
$this->seek($s); |
| 3380 |
} |
| 3381 |
|
| 3382 |
if ($this->parenValue($out)) return true; |
| 3383 |
if ($this->interpolation($out)) return true; |
| 3384 |
if ($this->variable($out)) return true; |
| 3385 |
if ($this->color($out)) return true; |
| 3386 |
if ($this->unit($out)) return true; |
| 3387 |
if ($this->string($out)) return true; |
| 3388 |
if ($this->func($out)) return true; |
| 3389 |
if ($this->progid($out)) return true; |
| 3390 |
|
| 3391 |
if ($this->keyword($keyword)) { |
| 3392 |
if ($keyword == "null") { |
| 3393 |
$out = array("null"); |
| 3394 |
} else { |
| 3395 |
$out = array("keyword", $keyword); |
| 3396 |
} |
| 3397 |
return true; |
| 3398 |
} |
| 3399 |
|
| 3400 |
return false; |
| 3401 |
} |
| 3402 |
|
| 3403 |
// value wrappen in parentheses |
| 3404 |
protected function parenValue(&$out) { |
| 3405 |
$s = $this->seek(); |
| 3406 |
|
| 3407 |
$inParens = $this->inParens; |
| 3408 |
if ($this->literal("(") && |
| 3409 |
($this->inParens = true) && $this->expression($exp) && |
| 3410 |
$this->literal(")")) |
| 3411 |
{ |
| 3412 |
$out = $exp; |
| 3413 |
$this->inParens = $inParens; |
| 3414 |
return true; |
| 3415 |
} else { |
| 3416 |
$this->inParens = $inParens; |
| 3417 |
$this->seek($s); |
| 3418 |
} |
| 3419 |
|
| 3420 |
return false; |
| 3421 |
} |
| 3422 |
|
| 3423 |
protected function progid(&$out) { |
| 3424 |
$s = $this->seek(); |
| 3425 |
if ($this->literal("progid:", false) && |
| 3426 |
$this->openString("(", $fn) && |
| 3427 |
$this->literal("(")) |
| 3428 |
{ |
| 3429 |
$this->openString(")", $args, "("); |
| 3430 |
if ($this->literal(")")) { |
| 3431 |
$out = array("string", "", array( |
| 3432 |
"progid:", $fn, "(", $args, ")" |
| 3433 |
)); |
| 3434 |
return true; |
| 3435 |
} |
| 3436 |
} |
| 3437 |
|
| 3438 |
$this->seek($s); |
| 3439 |
return false; |
| 3440 |
} |
| 3441 |
|
| 3442 |
protected function func(&$func) { |
| 3443 |
$s = $this->seek(); |
| 3444 |
|
| 3445 |
if ($this->keyword($name, false) && |
| 3446 |
$this->literal("(")) |
| 3447 |
{ |
| 3448 |
if ($name == "alpha" && $this->argumentList($args)) { |
| 3449 |
$func = array("function", $name, array("string", "", $args)); |
| 3450 |
return true; |
| 3451 |
} |
| 3452 |
|
| 3453 |
if ($name != "expression" && !preg_match("/^(-[a-z]+-)?calc$/", $name)) { |
| 3454 |
$ss = $this->seek(); |
| 3455 |
if ($this->argValues($args) && $this->literal(")")) { |
| 3456 |
$func = array("fncall", $name, $args); |
| 3457 |
return true; |
| 3458 |
} |
| 3459 |
$this->seek($ss); |
| 3460 |
} |
| 3461 |
|
| 3462 |
if (($this->openString(")", $str, "(") || true ) && |
| 3463 |
$this->literal(")")) |
| 3464 |
{ |
| 3465 |
$args = array(); |
| 3466 |
if (!empty($str)) { |
| 3467 |
$args[] = array(null, array("string", "", array($str))); |
| 3468 |
} |
| 3469 |
|
| 3470 |
$func = array("fncall", $name, $args); |
| 3471 |
return true; |
| 3472 |
} |
| 3473 |
} |
| 3474 |
|
| 3475 |
$this->seek($s); |
| 3476 |
return false; |
| 3477 |
} |
| 3478 |
|
| 3479 |
protected function argumentList(&$out) { |
| 3480 |
$s = $this->seek(); |
| 3481 |
$this->literal("("); |
| 3482 |
|
| 3483 |
$args = array(); |
| 3484 |
while ($this->keyword($var)) { |
| 3485 |
$ss = $this->seek(); |
| 3486 |
|
| 3487 |
if ($this->literal("=") && $this->expression($exp)) { |
| 3488 |
$args[] = array("string", "", array($var."=")); |
| 3489 |
$arg = $exp; |
| 3490 |
} else { |
| 3491 |
break; |
| 3492 |
} |
| 3493 |
|
| 3494 |
$args[] = $arg; |
| 3495 |
|
| 3496 |
if (!$this->literal(",")) break; |
| 3497 |
|
| 3498 |
$args[] = array("string", "", array(", ")); |
| 3499 |
} |
| 3500 |
|
| 3501 |
if (!$this->literal(")") || !count($args)) { |
| 3502 |
$this->seek($s); |
| 3503 |
return false; |
| 3504 |
} |
| 3505 |
|
| 3506 |
$out = $args; |
| 3507 |
return true; |
| 3508 |
} |
| 3509 |
|
| 3510 |
protected function argumentDef(&$out) { |
| 3511 |
$s = $this->seek(); |
| 3512 |
$this->literal("("); |
| 3513 |
|
| 3514 |
$args = array(); |
| 3515 |
while ($this->variable($var)) { |
| 3516 |
$arg = array($var[1], null, false); |
| 3517 |
|
| 3518 |
$ss = $this->seek(); |
| 3519 |
if ($this->literal(":") && $this->genericList($defaultVal, "expression")) { |
| 3520 |
$arg[1] = $defaultVal; |
| 3521 |
} else { |
| 3522 |
$this->seek($ss); |
| 3523 |
} |
| 3524 |
|
| 3525 |
$ss = $this->seek(); |
| 3526 |
if ($this->literal("...")) { |
| 3527 |
$sss = $this->seek(); |
| 3528 |
if (!$this->literal(")")) { |
| 3529 |
$this->throwParseError("... has to be after the final argument"); |
| 3530 |
} |
| 3531 |
$arg[2] = true; |
| 3532 |
$this->seek($sss); |
| 3533 |
} else { |
| 3534 |
$this->seek($ss); |
| 3535 |
} |
| 3536 |
|
| 3537 |
$args[] = $arg; |
| 3538 |
if (!$this->literal(",")) break; |
| 3539 |
} |
| 3540 |
|
| 3541 |
if (!$this->literal(")")) { |
| 3542 |
$this->seek($s); |
| 3543 |
return false; |
| 3544 |
} |
| 3545 |
|
| 3546 |
$out = $args; |
| 3547 |
return true; |
| 3548 |
} |
| 3549 |
|
| 3550 |
protected function color(&$out) { |
| 3551 |
$color = array('color'); |
| 3552 |
|
| 3553 |
if ($this->match('(#([0-9a-f]{6})|#([0-9a-f]{3}))', $m)) { |
| 3554 |
if (isset($m[3])) { |
| 3555 |
$num = $m[3]; |
| 3556 |
$width = 16; |
| 3557 |
} else { |
| 3558 |
$num = $m[2]; |
| 3559 |
$width = 256; |
| 3560 |
} |
| 3561 |
|
| 3562 |
$num = hexdec($num); |
| 3563 |
foreach (array(3,2,1) as $i) { |
| 3564 |
$t = $num % $width; |
| 3565 |
$num /= $width; |
| 3566 |
|
| 3567 |
$color[$i] = $t * (256/$width) + $t * floor(16/$width); |
| 3568 |
} |
| 3569 |
|
| 3570 |
$out = $color; |
| 3571 |
return true; |
| 3572 |
} |
| 3573 |
|
| 3574 |
return false; |
| 3575 |
} |
| 3576 |
|
| 3577 |
protected function unit(&$unit) { |
| 3578 |
if ($this->match('([0-9]*(\.)?[0-9]+)([%a-zA-Z]+)?', $m)) { |
| 3579 |
$unit = array("number", $m[1], empty($m[3]) ? "" : $m[3]); |
| 3580 |
return true; |
| 3581 |
} |
| 3582 |
return false; |
| 3583 |
} |
| 3584 |
|
| 3585 |
protected function string(&$out) { |
| 3586 |
$s = $this->seek(); |
| 3587 |
if ($this->literal('"', false)) { |
| 3588 |
$delim = '"'; |
| 3589 |
} elseif ($this->literal("'", false)) { |
| 3590 |
$delim = "'"; |
| 3591 |
} else { |
| 3592 |
return false; |
| 3593 |
} |
| 3594 |
|
| 3595 |
$content = array(); |
| 3596 |
$oldWhite = $this->eatWhiteDefault; |
| 3597 |
$this->eatWhiteDefault = false; |
| 3598 |
|
| 3599 |
while ($this->matchString($m, $delim)) { |
| 3600 |
$content[] = $m[1]; |
| 3601 |
if ($m[2] == "#{") { |
| 3602 |
$this->count -= strlen($m[2]); |
| 3603 |
if ($this->interpolation($inter, false)) { |
| 3604 |
$content[] = $inter; |
| 3605 |
} else { |
| 3606 |
$this->count += strlen($m[2]); |
| 3607 |
$content[] = "#{"; // ignore it |
| 3608 |
} |
| 3609 |
} elseif ($m[2] == '\\') { |
| 3610 |
$content[] = $m[2]; |
| 3611 |
if ($this->literal($delim, false)) { |
| 3612 |
$content[] = $delim; |
| 3613 |
} |
| 3614 |
} else { |
| 3615 |
$this->count -= strlen($delim); |
| 3616 |
break; // delim |
| 3617 |
} |
| 3618 |
} |
| 3619 |
|
| 3620 |
$this->eatWhiteDefault = $oldWhite; |
| 3621 |
|
| 3622 |
if ($this->literal($delim)) { |
| 3623 |
$out = array("string", $delim, $content); |
| 3624 |
return true; |
| 3625 |
} |
| 3626 |
|
| 3627 |
$this->seek($s); |
| 3628 |
return false; |
| 3629 |
} |
| 3630 |
|
| 3631 |
protected function mixedKeyword(&$out) { |
| 3632 |
$s = $this->seek(); |
| 3633 |
|
| 3634 |
$parts = array(); |
| 3635 |
|
| 3636 |
$oldWhite = $this->eatWhiteDefault; |
| 3637 |
$this->eatWhiteDefault = false; |
| 3638 |
|
| 3639 |
while (true) { |
| 3640 |
if ($this->keyword($key)) { |
| 3641 |
$parts[] = $key; |
| 3642 |
continue; |
| 3643 |
} |
| 3644 |
|
| 3645 |
if ($this->interpolation($inter)) { |
| 3646 |
$parts[] = $inter; |
| 3647 |
continue; |
| 3648 |
} |
| 3649 |
|
| 3650 |
break; |
| 3651 |
} |
| 3652 |
|
| 3653 |
$this->eatWhiteDefault = $oldWhite; |
| 3654 |
|
| 3655 |
if (count($parts) == 0) return false; |
| 3656 |
|
| 3657 |
if ($this->eatWhiteDefault) { |
| 3658 |
$this->whitespace(); |
| 3659 |
} |
| 3660 |
|
| 3661 |
$out = $parts; |
| 3662 |
return true; |
| 3663 |
} |
| 3664 |
|
| 3665 |
// an unbounded string stopped by $end |
| 3666 |
protected function openString($end, &$out, $nestingOpen=null) { |
| 3667 |
$oldWhite = $this->eatWhiteDefault; |
| 3668 |
$this->eatWhiteDefault = false; |
| 3669 |
|
| 3670 |
$stop = array("'", '"', "#{", $end); |
| 3671 |
$stop = array_map(array($this, "preg_quote"), $stop); |
| 3672 |
$stop[] = self::$commentMulti; |
| 3673 |
|
| 3674 |
$patt = '(.*?)('.implode("|", $stop).')'; |
| 3675 |
|
| 3676 |
$nestingLevel = 0; |
| 3677 |
|
| 3678 |
$content = array(); |
| 3679 |
while ($this->match($patt, $m, false)) { |
| 3680 |
if (isset($m[1]) && $m[1] !== '') { |
| 3681 |
$content[] = $m[1]; |
| 3682 |
if ($nestingOpen) { |
| 3683 |
$nestingLevel += substr_count($m[1], $nestingOpen); |
| 3684 |
} |
| 3685 |
} |
| 3686 |
|
| 3687 |
$tok = $m[2]; |
| 3688 |
|
| 3689 |
$this->count-= strlen($tok); |
| 3690 |
if ($tok == $end) { |
| 3691 |
if ($nestingLevel == 0) { |
| 3692 |
break; |
| 3693 |
} else { |
| 3694 |
$nestingLevel--; |
| 3695 |
} |
| 3696 |
} |
| 3697 |
|
| 3698 |
if (($tok == "'" || $tok == '"') && $this->string($str)) { |
| 3699 |
$content[] = $str; |
| 3700 |
continue; |
| 3701 |
} |
| 3702 |
|
| 3703 |
if ($tok == "#{" && $this->interpolation($inter)) { |
| 3704 |
$content[] = $inter; |
| 3705 |
continue; |
| 3706 |
} |
| 3707 |
|
| 3708 |
$content[] = $tok; |
| 3709 |
$this->count+= strlen($tok); |
| 3710 |
} |
| 3711 |
|
| 3712 |
$this->eatWhiteDefault = $oldWhite; |
| 3713 |
|
| 3714 |
if (count($content) == 0) return false; |
| 3715 |
|
| 3716 |
// trim the end |
| 3717 |
if (is_string(end($content))) { |
| 3718 |
$content[count($content) - 1] = rtrim(end($content)); |
| 3719 |
} |
| 3720 |
|
| 3721 |
$out = array("string", "", $content); |
| 3722 |
return true; |
| 3723 |
} |
| 3724 |
|
| 3725 |
// $lookWhite: save information about whitespace before and after |
| 3726 |
protected function interpolation(&$out, $lookWhite=true) { |
| 3727 |
$oldWhite = $this->eatWhiteDefault; |
| 3728 |
$this->eatWhiteDefault = true; |
| 3729 |
|
| 3730 |
$s = $this->seek(); |
| 3731 |
if ($this->literal("#{") && $this->valueList($value) && $this->literal("}", false)) { |
| 3732 |
|
| 3733 |
// TODO: don't error if out of bounds |
| 3734 |
|
| 3735 |
if ($lookWhite) { |
| 3736 |
$left = preg_match('/\s/', $this->buffer[$s - 1]) ? " " : ""; |
| 3737 |
$right = preg_match('/\s/', $this->buffer[$this->count]) ? " ": ""; |
| 3738 |
} else { |
| 3739 |
$left = $right = false; |
| 3740 |
} |
| 3741 |
|
| 3742 |
$out = array("interpolate", $value, $left, $right); |
| 3743 |
$this->eatWhiteDefault = $oldWhite; |
| 3744 |
if ($this->eatWhiteDefault) $this->whitespace(); |
| 3745 |
return true; |
| 3746 |
} |
| 3747 |
|
| 3748 |
$this->seek($s); |
| 3749 |
$this->eatWhiteDefault = $oldWhite; |
| 3750 |
return false; |
| 3751 |
} |
| 3752 |
|
| 3753 |
// low level parsers |
| 3754 |
|
| 3755 |
// returns an array of parts or a string |
| 3756 |
protected function propertyName(&$out) { |
| 3757 |
$s = $this->seek(); |
| 3758 |
$parts = array(); |
| 3759 |
|
| 3760 |
$oldWhite = $this->eatWhiteDefault; |
| 3761 |
$this->eatWhiteDefault = false; |
| 3762 |
|
| 3763 |
while (true) { |
| 3764 |
if ($this->interpolation($inter)) { |
| 3765 |
$parts[] = $inter; |
| 3766 |
} elseif ($this->keyword($text)) { |
| 3767 |
$parts[] = $text; |
| 3768 |
} elseif (count($parts) == 0 && $this->match('[:.#]', $m, false)) { |
| 3769 |
// css hacks |
| 3770 |
$parts[] = $m[0]; |
| 3771 |
} else { |
| 3772 |
break; |
| 3773 |
} |
| 3774 |
} |
| 3775 |
|
| 3776 |
$this->eatWhiteDefault = $oldWhite; |
| 3777 |
if (count($parts) == 0) return false; |
| 3778 |
|
| 3779 |
// match comment hack |
| 3780 |
if (preg_match(self::$whitePattern, |
| 3781 |
$this->buffer, $m, null, $this->count)) |
| 3782 |
{ |
| 3783 |
if (!empty($m[0])) { |
| 3784 |
$parts[] = $m[0]; |
| 3785 |
$this->count += strlen($m[0]); |
| 3786 |
} |
| 3787 |
} |
| 3788 |
|
| 3789 |
$this->whitespace(); // get any extra whitespace |
| 3790 |
|
| 3791 |
$out = array("string", "", $parts); |
| 3792 |
return true; |
| 3793 |
} |
| 3794 |
|
| 3795 |
// comma separated list of selectors |
| 3796 |
protected function selectors(&$out) { |
| 3797 |
$s = $this->seek(); |
| 3798 |
$selectors = array(); |
| 3799 |
while ($this->selector($sel)) { |
| 3800 |
$selectors[] = $sel; |
| 3801 |
if (!$this->literal(",")) break; |
| 3802 |
while ($this->literal(",")); // ignore extra |
| 3803 |
} |
| 3804 |
|
| 3805 |
if (count($selectors) == 0) { |
| 3806 |
$this->seek($s); |
| 3807 |
return false; |
| 3808 |
} |
| 3809 |
|
| 3810 |
$out = $selectors; |
| 3811 |
return true; |
| 3812 |
} |
| 3813 |
|
| 3814 |
// whitespace separated list of selectorSingle |
| 3815 |
protected function selector(&$out) { |
| 3816 |
$selector = array(); |
| 3817 |
|
| 3818 |
while (true) { |
| 3819 |
if ($this->match('[>+~]+', $m)) { |
| 3820 |
$selector[] = array($m[0]); |
| 3821 |
} elseif ($this->selectorSingle($part)) { |
| 3822 |
$selector[] = $part; |
| 3823 |
$this->whitespace(); |
| 3824 |
} elseif ($this->match('\/[^\/]+\/', $m)) { |
| 3825 |
$selector[] = array($m[0]); |
| 3826 |
} else { |
| 3827 |
break; |
| 3828 |
} |
| 3829 |
|
| 3830 |
} |
| 3831 |
|
| 3832 |
if (count($selector) == 0) { |
| 3833 |
return false; |
| 3834 |
} |
| 3835 |
|
| 3836 |
$out = $selector; |
| 3837 |
return true; |
| 3838 |
} |
| 3839 |
|
| 3840 |
// the parts that make up |
| 3841 |
// div[yes=no]#something.hello.world:nth-child(-2n+1)%placeholder |
| 3842 |
protected function selectorSingle(&$out) { |
| 3843 |
$oldWhite = $this->eatWhiteDefault; |
| 3844 |
$this->eatWhiteDefault = false; |
| 3845 |
|
| 3846 |
$parts = array(); |
| 3847 |
|
| 3848 |
if ($this->literal("*", false)) { |
| 3849 |
$parts[] = "*"; |
| 3850 |
} |
| 3851 |
|
| 3852 |
while (true) { |
| 3853 |
// see if we can stop early |
| 3854 |
if ($this->match("\s*[{,]", $m)) { |
| 3855 |
$this->count--; |
| 3856 |
break; |
| 3857 |
} |
| 3858 |
|
| 3859 |
$s = $this->seek(); |
| 3860 |
// self |
| 3861 |
if ($this->literal("&", false)) { |
| 3862 |
$parts[] = scssc::$selfSelector; |
| 3863 |
continue; |
| 3864 |
} |
| 3865 |
|
| 3866 |
if ($this->literal(".", false)) { |
| 3867 |
$parts[] = "."; |
| 3868 |
continue; |
| 3869 |
} |
| 3870 |
|
| 3871 |
if ($this->literal("|", false)) { |
| 3872 |
$parts[] = "|"; |
| 3873 |
continue; |
| 3874 |
} |
| 3875 |
|
| 3876 |
// for keyframes |
| 3877 |
if ($this->unit($unit)) { |
| 3878 |
$parts[] = $unit; |
| 3879 |
continue; |
| 3880 |
} |
| 3881 |
|
| 3882 |
if ($this->keyword($name)) { |
| 3883 |
$parts[] = $name; |
| 3884 |
continue; |
| 3885 |
} |
| 3886 |
|
| 3887 |
if ($this->interpolation($inter)) { |
| 3888 |
$parts[] = $inter; |
| 3889 |
continue; |
| 3890 |
} |
| 3891 |
|
| 3892 |
if ($this->literal('%', false) && $this->placeholder($placeholder)) { |
| 3893 |
$parts[] = '%'; |
| 3894 |
$parts[] = $placeholder; |
| 3895 |
continue; |
| 3896 |
} |
| 3897 |
|
| 3898 |
if ($this->literal("#", false)) { |
| 3899 |
$parts[] = "#"; |
| 3900 |
continue; |
| 3901 |
} |
| 3902 |
|
| 3903 |
// a pseudo selector |
| 3904 |
if ($this->match("::?", $m) && $this->mixedKeyword($nameParts)) { |
| 3905 |
$parts[] = $m[0]; |
| 3906 |
foreach ($nameParts as $sub) { |
| 3907 |
$parts[] = $sub; |
| 3908 |
} |
| 3909 |
|
| 3910 |
$ss = $this->seek(); |
| 3911 |
if ($this->literal("(") && |
| 3912 |
($this->openString(")", $str, "(") || true ) && |
| 3913 |
$this->literal(")")) |
| 3914 |
{ |
| 3915 |
$parts[] = "("; |
| 3916 |
if (!empty($str)) $parts[] = $str; |
| 3917 |
$parts[] = ")"; |
| 3918 |
} else { |
| 3919 |
$this->seek($ss); |
| 3920 |
} |
| 3921 |
|
| 3922 |
continue; |
| 3923 |
} else { |
| 3924 |
$this->seek($s); |
| 3925 |
} |
| 3926 |
|
| 3927 |
// attribute selector |
| 3928 |
// TODO: replace with open string? |
| 3929 |
if ($this->literal("[", false)) { |
| 3930 |
$attrParts = array("["); |
| 3931 |
// keyword, string, operator |
| 3932 |
while (true) { |
| 3933 |
if ($this->literal("]", false)) { |
| 3934 |
$this->count--; |
| 3935 |
break; // get out early |
| 3936 |
} |
| 3937 |
|
| 3938 |
if ($this->match('\s+', $m)) { |
| 3939 |
$attrParts[] = " "; |
| 3940 |
continue; |
| 3941 |
} |
| 3942 |
if ($this->string($str)) { |
| 3943 |
$attrParts[] = $str; |
| 3944 |
continue; |
| 3945 |
} |
| 3946 |
|
| 3947 |
if ($this->keyword($word)) { |
| 3948 |
$attrParts[] = $word; |
| 3949 |
continue; |
| 3950 |
} |
| 3951 |
|
| 3952 |
if ($this->interpolation($inter, false)) { |
| 3953 |
$attrParts[] = $inter; |
| 3954 |
continue; |
| 3955 |
} |
| 3956 |
|
| 3957 |
// operator, handles attr namespace too |
| 3958 |
if ($this->match('[|-~\$\*\^=]+', $m)) { |
| 3959 |
$attrParts[] = $m[0]; |
| 3960 |
continue; |
| 3961 |
} |
| 3962 |
|
| 3963 |
break; |
| 3964 |
} |
| 3965 |
|
| 3966 |
if ($this->literal("]", false)) { |
| 3967 |
$attrParts[] = "]"; |
| 3968 |
foreach ($attrParts as $part) { |
| 3969 |
$parts[] = $part; |
| 3970 |
} |
| 3971 |
continue; |
| 3972 |
} |
| 3973 |
$this->seek($s); |
| 3974 |
// should just break here? |
| 3975 |
} |
| 3976 |
|
| 3977 |
break; |
| 3978 |
} |
| 3979 |
|
| 3980 |
$this->eatWhiteDefault = $oldWhite; |
| 3981 |
|
| 3982 |
if (count($parts) == 0) return false; |
| 3983 |
|
| 3984 |
$out = $parts; |
| 3985 |
return true; |
| 3986 |
} |
| 3987 |
|
| 3988 |
protected function variable(&$out) { |
| 3989 |
$s = $this->seek(); |
| 3990 |
if ($this->literal("$", false) && $this->keyword($name)) { |
| 3991 |
$out = array("var", $name); |
| 3992 |
return true; |
| 3993 |
} |
| 3994 |
$this->seek($s); |
| 3995 |
return false; |
| 3996 |
} |
| 3997 |
|
| 3998 |
protected function keyword(&$word, $eatWhitespace = null) { |
| 3999 |
if ($this->match('([\w_\-\*!"\'\\\\][\w\-_"\'\\\\]*)', |
| 4000 |
$m, $eatWhitespace)) |
| 4001 |
{ |
| 4002 |
$word = $m[1]; |
| 4003 |
return true; |
| 4004 |
} |
| 4005 |
return false; |
| 4006 |
} |
| 4007 |
|
| 4008 |
protected function placeholder(&$placeholder) { |
| 4009 |
if ($this->match('([\w\-_]+)', $m)) { |
| 4010 |
$placeholder = $m[1]; |
| 4011 |
return true; |
| 4012 |
} |
| 4013 |
return false; |
| 4014 |
} |
| 4015 |
|
| 4016 |
// consume an end of statement delimiter |
| 4017 |
protected function end() { |
| 4018 |
if ($this->literal(';')) { |
| 4019 |
return true; |
| 4020 |
} elseif ($this->count == strlen($this->buffer) || $this->buffer[$this->count] == '}') { |
| 4021 |
// if there is end of file or a closing block next then we don't need a ; |
| 4022 |
return true; |
| 4023 |
} |
| 4024 |
return false; |
| 4025 |
} |
| 4026 |
|
| 4027 |
// advance counter to next occurrence of $what |
| 4028 |
// $until - don't include $what in advance |
| 4029 |
// $allowNewline, if string, will be used as valid char set |
| 4030 |
protected function to($what, &$out, $until = false, $allowNewline = false) { |
| 4031 |
if (is_string($allowNewline)) { |
| 4032 |
$validChars = $allowNewline; |
| 4033 |
} else { |
| 4034 |
$validChars = $allowNewline ? "." : "[^\n]"; |
| 4035 |
} |
| 4036 |
if (!$this->match('('.$validChars.'*?)'.$this->preg_quote($what), $m, !$until)) return false; |
| 4037 |
if ($until) $this->count -= strlen($what); // give back $what |
| 4038 |
$out = $m[1]; |
| 4039 |
return true; |
| 4040 |
} |
| 4041 |
|
| 4042 |
public function throwParseError($msg = "parse error", $count = null) { |
| 4043 |
$count = !isset($count) ? $this->count : $count; |
| 4044 |
|
| 4045 |
$line = $this->getLineNo($count); |
| 4046 |
|
| 4047 |
if (!empty($this->sourceName)) { |
| 4048 |
$loc = "$this->sourceName on line $line"; |
| 4049 |
} else { |
| 4050 |
$loc = "line: $line"; |
| 4051 |
} |
| 4052 |
|
| 4053 |
if ($this->peek("(.*?)(\n|$)", $m, $count)) { |
| 4054 |
throw new Exception("$msg: failed at `$m[1]` $loc"); |
| 4055 |
} else { |
| 4056 |
throw new Exception("$msg: $loc"); |
| 4057 |
} |
| 4058 |
} |
| 4059 |
|
| 4060 |
public function getLineNo($pos) { |
| 4061 |
return 1 + substr_count(substr($this->buffer, 0, $pos), "\n"); |
| 4062 |
} |
| 4063 |
|
| 4064 |
/** |
| 4065 |
* Match string looking for either ending delim, escape, or string interpolation |
| 4066 |
* |
| 4067 |
* {@internal This is a workaround for preg_match's 250K string match limit. }} |
| 4068 |
* |
| 4069 |
* @param array $m Matches (passed by reference) |
| 4070 |
* @param string $delim Delimeter |
| 4071 |
* |
| 4072 |
* @return boolean True if match; false otherwise |
| 4073 |
*/ |
| 4074 |
protected function matchString(&$m, $delim) { |
| 4075 |
$token = null; |
| 4076 |
|
| 4077 |
$end = strpos($this->buffer, "\n", $this->count); |
| 4078 |
if ($end === false || $this->buffer[$end - 1] == '\\' || $this->buffer[$end - 2] == '\\' && $this->buffer[$end - 1] == "\r") { |
| 4079 |
$end = strlen($this->buffer); |
| 4080 |
} |
| 4081 |
|
| 4082 |
// look for either ending delim, escape, or string interpolation |
| 4083 |
foreach (array('#{', '\\', $delim) as $lookahead) { |
| 4084 |
$pos = strpos($this->buffer, $lookahead, $this->count); |
| 4085 |
if ($pos !== false && $pos < $end) { |
| 4086 |
$end = $pos; |
| 4087 |
$token = $lookahead; |
| 4088 |
} |
| 4089 |
} |
| 4090 |
|
| 4091 |
if (!isset($token)) { |
| 4092 |
return false; |
| 4093 |
} |
| 4094 |
|
| 4095 |
$match = substr($this->buffer, $this->count, $end - $this->count); |
| 4096 |
$m = array( |
| 4097 |
$match . $token, |
| 4098 |
$match, |
| 4099 |
$token |
| 4100 |
); |
| 4101 |
$this->count = $end + strlen($token); |
| 4102 |
|
| 4103 |
return true; |
| 4104 |
} |
| 4105 |
|
| 4106 |
// try to match something on head of buffer |
| 4107 |
protected function match($regex, &$out, $eatWhitespace = null) { |
| 4108 |
if (!isset($eatWhitespace)) $eatWhitespace = $this->eatWhiteDefault; |
| 4109 |
|
| 4110 |
$r = '/'.$regex.'/Ais'; |
| 4111 |
if (preg_match($r, $this->buffer, $out, null, $this->count)) { |
| 4112 |
$this->count += strlen($out[0]); |
| 4113 |
if ($eatWhitespace) $this->whitespace(); |
| 4114 |
return true; |
| 4115 |
} |
| 4116 |
return false; |
| 4117 |
} |
| 4118 |
|
| 4119 |
// match some whitespace |
| 4120 |
protected function whitespace() { |
| 4121 |
$gotWhite = false; |
| 4122 |
while (preg_match(self::$whitePattern, $this->buffer, $m, null, $this->count)) { |
| 4123 |
if ($this->insertComments) { |
| 4124 |
if (isset($m[1]) && empty($this->commentsSeen[$this->count])) { |
| 4125 |
$this->append(array("comment", $m[1])); |
| 4126 |
$this->commentsSeen[$this->count] = true; |
| 4127 |
} |
| 4128 |
} |
| 4129 |
$this->count += strlen($m[0]); |
| 4130 |
$gotWhite = true; |
| 4131 |
} |
| 4132 |
return $gotWhite; |
| 4133 |
} |
| 4134 |
|
| 4135 |
protected function peek($regex, &$out, $from=null) { |
| 4136 |
if (!isset($from)) $from = $this->count; |
| 4137 |
|
| 4138 |
$r = '/'.$regex.'/Ais'; |
| 4139 |
$result = preg_match($r, $this->buffer, $out, null, $from); |
| 4140 |
|
| 4141 |
return $result; |
| 4142 |
} |
| 4143 |
|
| 4144 |
protected function seek($where = null) { |
| 4145 |
if ($where === null) return $this->count; |
| 4146 |
else $this->count = $where; |
| 4147 |
return true; |
| 4148 |
} |
| 4149 |
|
| 4150 |
static function preg_quote($what) { |
| 4151 |
return preg_quote($what, '/'); |
| 4152 |
} |
| 4153 |
|
| 4154 |
protected function show() { |
| 4155 |
if ($this->peek("(.*?)(\n|$)", $m, $this->count)) { |
| 4156 |
return $m[1]; |
| 4157 |
} |
| 4158 |
return ""; |
| 4159 |
} |
| 4160 |
|
| 4161 |
// turn list of length 1 into value type |
| 4162 |
protected function flattenList($value) { |
| 4163 |
if ($value[0] == "list" && count($value[2]) == 1) { |
| 4164 |
return $this->flattenList($value[2][0]); |
| 4165 |
} |
| 4166 |
return $value; |
| 4167 |
} |
| 4168 |
} |
| 4169 |
|
| 4170 |
/** |
| 4171 |
* SCSS base formatter |
| 4172 |
* |
| 4173 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 4174 |
*/ |
| 4175 |
class scss_formatter { |
| 4176 |
public $indentChar = " "; |
| 4177 |
|
| 4178 |
public $break = "\n"; |
| 4179 |
public $open = " {"; |
| 4180 |
public $close = "}"; |
| 4181 |
public $tagSeparator = ", "; |
| 4182 |
public $assignSeparator = ": "; |
| 4183 |
|
| 4184 |
public function __construct() { |
| 4185 |
$this->indentLevel = 0; |
| 4186 |
} |
| 4187 |
|
| 4188 |
public function indentStr($n = 0) { |
| 4189 |
return str_repeat($this->indentChar, max($this->indentLevel + $n, 0)); |
| 4190 |
} |
| 4191 |
|
| 4192 |
public function property($name, $value) { |
| 4193 |
return $name . $this->assignSeparator . $value . ";"; |
| 4194 |
} |
| 4195 |
|
| 4196 |
protected function block($block) { |
| 4197 |
if (empty($block->lines) && empty($block->children)) return; |
| 4198 |
|
| 4199 |
$inner = $pre = $this->indentStr(); |
| 4200 |
|
| 4201 |
if (!empty($block->selectors)) { |
| 4202 |
echo $pre . |
| 4203 |
implode($this->tagSeparator, $block->selectors) . |
| 4204 |
$this->open . $this->break; |
| 4205 |
$this->indentLevel++; |
| 4206 |
$inner = $this->indentStr(); |
| 4207 |
} |
| 4208 |
|
| 4209 |
if (!empty($block->lines)) { |
| 4210 |
$glue = $this->break.$inner; |
| 4211 |
echo $inner . implode($glue, $block->lines); |
| 4212 |
if (!empty($block->children)) { |
| 4213 |
echo $this->break; |
| 4214 |
} |
| 4215 |
} |
| 4216 |
|
| 4217 |
foreach ($block->children as $child) { |
| 4218 |
$this->block($child); |
| 4219 |
} |
| 4220 |
|
| 4221 |
if (!empty($block->selectors)) { |
| 4222 |
$this->indentLevel--; |
| 4223 |
if (empty($block->children)) echo $this->break; |
| 4224 |
echo $pre . $this->close . $this->break; |
| 4225 |
} |
| 4226 |
} |
| 4227 |
|
| 4228 |
public function format($block) { |
| 4229 |
ob_start(); |
| 4230 |
$this->block($block); |
| 4231 |
$out = ob_get_clean(); |
| 4232 |
|
| 4233 |
return $out; |
| 4234 |
} |
| 4235 |
} |
| 4236 |
|
| 4237 |
/** |
| 4238 |
* SCSS nested formatter |
| 4239 |
* |
| 4240 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 4241 |
*/ |
| 4242 |
class scss_formatter_nested extends scss_formatter { |
| 4243 |
public $close = " }"; |
| 4244 |
|
| 4245 |
// adjust the depths of all children, depth first |
| 4246 |
public function adjustAllChildren($block) { |
| 4247 |
// flatten empty nested blocks |
| 4248 |
$children = array(); |
| 4249 |
foreach ($block->children as $i => $child) { |
| 4250 |
if (empty($child->lines) && empty($child->children)) { |
| 4251 |
if (isset($block->children[$i + 1])) { |
| 4252 |
$block->children[$i + 1]->depth = $child->depth; |
| 4253 |
} |
| 4254 |
continue; |
| 4255 |
} |
| 4256 |
$children[] = $child; |
| 4257 |
} |
| 4258 |
|
| 4259 |
$count = count($children); |
| 4260 |
for ($i = 0; $i < $count; $i++) { |
| 4261 |
$depth = $children[$i]->depth; |
| 4262 |
$j = $i + 1; |
| 4263 |
if (isset($children[$j]) && $depth < $children[$j]->depth) { |
| 4264 |
$childDepth = $children[$j]->depth; |
| 4265 |
for (; $j < $count; $j++) { |
| 4266 |
if ($depth < $children[$j]->depth && $childDepth >= $children[$j]->depth) { |
| 4267 |
$children[$j]->depth = $depth + 1; |
| 4268 |
} |
| 4269 |
} |
| 4270 |
} |
| 4271 |
} |
| 4272 |
|
| 4273 |
$block->children = $children; |
| 4274 |
|
| 4275 |
// make relative to parent |
| 4276 |
foreach ($block->children as $child) { |
| 4277 |
$this->adjustAllChildren($child); |
| 4278 |
$child->depth = $child->depth - $block->depth; |
| 4279 |
} |
| 4280 |
} |
| 4281 |
|
| 4282 |
protected function block($block) { |
| 4283 |
if ($block->type == "root") { |
| 4284 |
$this->adjustAllChildren($block); |
| 4285 |
} |
| 4286 |
|
| 4287 |
$inner = $pre = $this->indentStr($block->depth - 1); |
| 4288 |
if (!empty($block->selectors)) { |
| 4289 |
echo $pre . |
| 4290 |
implode($this->tagSeparator, $block->selectors) . |
| 4291 |
$this->open . $this->break; |
| 4292 |
$this->indentLevel++; |
| 4293 |
$inner = $this->indentStr($block->depth - 1); |
| 4294 |
} |
| 4295 |
|
| 4296 |
if (!empty($block->lines)) { |
| 4297 |
$glue = $this->break.$inner; |
| 4298 |
echo $inner . implode($glue, $block->lines); |
| 4299 |
if (!empty($block->children)) echo $this->break; |
| 4300 |
} |
| 4301 |
|
| 4302 |
foreach ($block->children as $i => $child) { |
| 4303 |
// echo "*** block: ".$block->depth." child: ".$child->depth."\n"; |
| 4304 |
$this->block($child); |
| 4305 |
if ($i < count($block->children) - 1) { |
| 4306 |
echo $this->break; |
| 4307 |
|
| 4308 |
if (isset($block->children[$i + 1])) { |
| 4309 |
$next = $block->children[$i + 1]; |
| 4310 |
if ($next->depth == max($block->depth, 1) && $child->depth >= $next->depth) { |
| 4311 |
echo $this->break; |
| 4312 |
} |
| 4313 |
} |
| 4314 |
} |
| 4315 |
} |
| 4316 |
|
| 4317 |
if (!empty($block->selectors)) { |
| 4318 |
$this->indentLevel--; |
| 4319 |
echo $this->close; |
| 4320 |
} |
| 4321 |
|
| 4322 |
if ($block->type == "root") { |
| 4323 |
echo $this->break; |
| 4324 |
} |
| 4325 |
} |
| 4326 |
} |
| 4327 |
|
| 4328 |
/** |
| 4329 |
* SCSS compressed formatter |
| 4330 |
* |
| 4331 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 4332 |
*/ |
| 4333 |
class scss_formatter_compressed extends scss_formatter { |
| 4334 |
public $open = "{"; |
| 4335 |
public $tagSeparator = ","; |
| 4336 |
public $assignSeparator = ":"; |
| 4337 |
public $break = ""; |
| 4338 |
|
| 4339 |
public function indentStr($n = 0) { |
| 4340 |
return ""; |
| 4341 |
} |
| 4342 |
} |
| 4343 |
|
| 4344 |
/** |
| 4345 |
* SCSS server |
| 4346 |
* |
| 4347 |
* @author Leaf Corcoran <leafot@gmail.com> |
| 4348 |
*/ |
| 4349 |
class scss_server { |
| 4350 |
/** |
| 4351 |
* Join path components |
| 4352 |
* |
| 4353 |
* @param string $left Path component, left of the directory separator |
| 4354 |
* @param string $right Path component, right of the directory separator |
| 4355 |
* |
| 4356 |
* @return string |
| 4357 |
*/ |
| 4358 |
protected function join($left, $right) { |
| 4359 |
return rtrim($left, '/\\') . DIRECTORY_SEPARATOR . ltrim($right, '/\\'); |
| 4360 |
} |
| 4361 |
|
| 4362 |
/** |
| 4363 |
* Get name of requested .scss file |
| 4364 |
* |
| 4365 |
* @return string|null |
| 4366 |
*/ |
| 4367 |
protected function inputName() { |
| 4368 |
switch (true) { |
| 4369 |
case isset($_GET['p']): |
| 4370 |
return $_GET['p']; |
| 4371 |
case isset($_SERVER['PATH_INFO']): |
| 4372 |
return $_SERVER['PATH_INFO']; |
| 4373 |
case isset($_SERVER['DOCUMENT_URI']): |
| 4374 |
return substr($_SERVER['DOCUMENT_URI'], strlen($_SERVER['SCRIPT_NAME'])); |
| 4375 |
} |
| 4376 |
} |
| 4377 |
|
| 4378 |
/** |
| 4379 |
* Get path to requested .scss file |
| 4380 |
* |
| 4381 |
* @return string |
| 4382 |
*/ |
| 4383 |
protected function findInput() { |
| 4384 |
if (($input = $this->inputName()) |
| 4385 |
&& strpos($input, '..') === false |
| 4386 |
&& substr($input, -5) === '.scss' |
| 4387 |
) { |
| 4388 |
$name = $this->join($this->dir, $input); |
| 4389 |
|
| 4390 |
if (is_file($name) && is_readable($name)) { |
| 4391 |
return $name; |
| 4392 |
} |
| 4393 |
} |
| 4394 |
|
| 4395 |
return false; |
| 4396 |
} |
| 4397 |
|
| 4398 |
/** |
| 4399 |
* Get path to cached .css file |
| 4400 |
* |
| 4401 |
* @return string |
| 4402 |
*/ |
| 4403 |
protected function cacheName($fname) { |
| 4404 |
return $this->join($this->cacheDir, md5($fname) . '.css'); |
| 4405 |
} |
| 4406 |
|
| 4407 |
/** |
| 4408 |
* Get path to cached imports |
| 4409 |
* |
| 4410 |
* @return string |
| 4411 |
*/ |
| 4412 |
protected function importsCacheName($out) { |
| 4413 |
return $out . '.imports'; |
| 4414 |
} |
| 4415 |
|
| 4416 |
/** |
| 4417 |
* Determine whether .scss file needs to be re-compiled. |
| 4418 |
* |
| 4419 |
* @param string $in Input path |
| 4420 |
* @param string $out Output path |
| 4421 |
* |
| 4422 |
* @return boolean True if compile required. |
| 4423 |
*/ |
| 4424 |
protected function needsCompile($in, $out) { |
| 4425 |
if (!is_file($out)) return true; |
| 4426 |
|
| 4427 |
$mtime = filemtime($out); |
| 4428 |
if (filemtime($in) > $mtime) return true; |
| 4429 |
|
| 4430 |
// look for modified imports |
| 4431 |
$icache = $this->importsCacheName($out); |
| 4432 |
if (is_readable($icache)) { |
| 4433 |
$imports = unserialize(file_get_contents($icache)); |
| 4434 |
foreach ($imports as $import) { |
| 4435 |
if (filemtime($import) > $mtime) return true; |
| 4436 |
} |
| 4437 |
} |
| 4438 |
return false; |
| 4439 |
} |
| 4440 |
|
| 4441 |
/** |
| 4442 |
* Get If-Modified-Since header from client request |
| 4443 |
* |
| 4444 |
* @return string |
| 4445 |
*/ |
| 4446 |
protected function getModifiedSinceHeader() |
| 4447 |
{ |
| 4448 |
$modifiedSince = ''; |
| 4449 |
|
| 4450 |
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) { |
| 4451 |
$modifiedSince = $_SERVER['HTTP_IF_MODIFIED_SINCE']; |
| 4452 |
|
| 4453 |
if (false !== ($semicolonPos = strpos($modifiedSince, ';'))) { |
| 4454 |
$modifiedSince = substr($modifiedSince, 0, $semicolonPos); |
| 4455 |
} |
| 4456 |
} |
| 4457 |
|
| 4458 |
return $modifiedSince; |
| 4459 |
} |
| 4460 |
|
| 4461 |
/** |
| 4462 |
* Compile .scss file |
| 4463 |
* |
| 4464 |
* @param string $in Input path (.scss) |
| 4465 |
* @param string $out Output path (.css) |
| 4466 |
* |
| 4467 |
* @return string |
| 4468 |
*/ |
| 4469 |
protected function compile($in, $out) { |
| 4470 |
$start = microtime(true); |
| 4471 |
$css = $this->scss->compile(file_get_contents($in), $in); |
| 4472 |
$elapsed = round((microtime(true) - $start), 4); |
| 4473 |
|
| 4474 |
$v = scssc::$VERSION; |
| 4475 |
$t = @date('r'); |
| 4476 |
$css = "/* compiled by scssphp $v on $t (${elapsed}s) */\n\n" . $css; |
| 4477 |
|
| 4478 |
file_put_contents($out, $css); |
| 4479 |
file_put_contents($this->importsCacheName($out), |
| 4480 |
serialize($this->scss->getParsedFiles())); |
| 4481 |
return $css; |
| 4482 |
} |
| 4483 |
|
| 4484 |
/** |
| 4485 |
* Compile requested scss and serve css. Outputs HTTP response. |
| 4486 |
* |
| 4487 |
* @param string $salt Prefix a string to the filename for creating the cache name hash |
| 4488 |
*/ |
| 4489 |
public function serve($salt = '') { |
| 4490 |
$protocol = isset($_SERVER['SERVER_PROTOCOL']) |
| 4491 |
? $_SERVER['SERVER_PROTOCOL'] |
| 4492 |
: 'HTTP/1.0'; |
| 4493 |
|
| 4494 |
if ($input = $this->findInput()) { |
| 4495 |
$output = $this->cacheName($salt . $input); |
| 4496 |
|
| 4497 |
if ($this->needsCompile($input, $output)) { |
| 4498 |
try { |
| 4499 |
$css = $this->compile($input, $output); |
| 4500 |
|
| 4501 |
$lastModified = gmdate('D, d M Y H:i:s', filemtime($output)) . ' GMT'; |
| 4502 |
|
| 4503 |
header('Last-Modified: ' . $lastModified); |
| 4504 |
header('Content-type: text/css'); |
| 4505 |
|
| 4506 |
echo $css; |
| 4507 |
|
| 4508 |
return; |
| 4509 |
} catch (Exception $e) { |
| 4510 |
header($protocol . ' 500 Internal Server Error'); |
| 4511 |
header('Content-type: text/plain'); |
| 4512 |
|
| 4513 |
echo 'Parse error: ' . $e->getMessage() . "\n"; |
| 4514 |
} |
| 4515 |
} |
| 4516 |
|
| 4517 |
header('X-SCSS-Cache: true'); |
| 4518 |
header('Content-type: text/css'); |
| 4519 |
|
| 4520 |
$modifiedSince = $this->getModifiedSinceHeader(); |
| 4521 |
$mtime = filemtime($output); |
| 4522 |
|
| 4523 |
if (@strtotime($modifiedSince) === $mtime) { |
| 4524 |
header($protocol . ' 304 Not Modified'); |
| 4525 |
|
| 4526 |
return; |
| 4527 |
} |
| 4528 |
|
| 4529 |
$lastModified = gmdate('D, d M Y H:i:s', $mtime) . ' GMT'; |
| 4530 |
header('Last-Modified: ' . $lastModified); |
| 4531 |
|
| 4532 |
echo file_get_contents($output); |
| 4533 |
|
| 4534 |
return; |
| 4535 |
} |
| 4536 |
|
| 4537 |
header($protocol . ' 404 Not Found'); |
| 4538 |
header('Content-type: text/plain'); |
| 4539 |
|
| 4540 |
$v = scssc::$VERSION; |
| 4541 |
echo "/* INPUT NOT FOUND scss $v */\n"; |
| 4542 |
} |
| 4543 |
|
| 4544 |
/** |
| 4545 |
* Constructor |
| 4546 |
* |
| 4547 |
* @param string $dir Root directory to .scss files |
| 4548 |
* @param string $cacheDir Cache directory |
| 4549 |
* @param \scssc|null $scss SCSS compiler instance |
| 4550 |
*/ |
| 4551 |
public function __construct($dir, $cacheDir=null, $scss=null) { |
| 4552 |
$this->dir = $dir; |
| 4553 |
|
| 4554 |
if (!isset($cacheDir)) { |
| 4555 |
$cacheDir = $this->join($dir, 'scss_cache'); |
| 4556 |
} |
| 4557 |
|
| 4558 |
$this->cacheDir = $cacheDir; |
| 4559 |
if (!is_dir($this->cacheDir)) mkdir($this->cacheDir, 0755, true); |
| 4560 |
|
| 4561 |
if (!isset($scss)) { |
| 4562 |
$scss = new scssc(); |
| 4563 |
$scss->setImportPaths($this->dir); |
| 4564 |
} |
| 4565 |
$this->scss = $scss; |
| 4566 |
} |
| 4567 |
|
| 4568 |
/** |
| 4569 |
* Helper method to serve compiled scss |
| 4570 |
* |
| 4571 |
* @param string $path Root path |
| 4572 |
*/ |
| 4573 |
static public function serveFrom($path) { |
| 4574 |
$server = new self($path); |
| 4575 |
$server->serve(); |
| 4576 |
} |
| 4577 |
} |
| 4578 |
|
