ProfessionalWiki /
Bootstrap
| Total Complexity | 721 |
| Total Lines | 3629 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Parser often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Parser, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 27 | class Parser |
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| 28 | { |
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| 29 | const SOURCE_INDEX = -1; |
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| 30 | const SOURCE_LINE = -2; |
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| 31 | const SOURCE_COLUMN = -3; |
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| 32 | |||
| 33 | /** |
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| 34 | * @var array |
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| 35 | */ |
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| 36 | protected static $precedence = [ |
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| 37 | '=' => 0, |
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| 38 | 'or' => 1, |
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| 39 | 'and' => 2, |
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| 40 | '==' => 3, |
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| 41 | '!=' => 3, |
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| 42 | '<=>' => 3, |
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| 43 | '<=' => 4, |
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| 44 | '>=' => 4, |
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| 45 | '<' => 4, |
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| 46 | '>' => 4, |
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| 47 | '+' => 5, |
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| 48 | '-' => 5, |
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| 49 | '*' => 6, |
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| 50 | '/' => 6, |
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| 51 | '%' => 6, |
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| 52 | ]; |
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| 53 | |||
| 54 | protected static $commentPattern; |
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| 55 | protected static $operatorPattern; |
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| 56 | protected static $whitePattern; |
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| 57 | |||
| 58 | protected $cache; |
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| 59 | |||
| 60 | private $sourceName; |
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| 61 | private $sourceIndex; |
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| 62 | private $sourcePositions; |
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| 63 | private $charset; |
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| 64 | private $count; |
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| 65 | private $env; |
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| 66 | private $inParens; |
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| 67 | private $eatWhiteDefault; |
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| 68 | private $discardComments; |
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| 69 | private $allowVars; |
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| 70 | private $buffer; |
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| 71 | private $utf8; |
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| 72 | private $encoding; |
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| 73 | private $patternModifiers; |
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| 74 | private $commentsSeen; |
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| 75 | |||
| 76 | private $cssOnly; |
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| 77 | |||
| 78 | /** |
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| 79 | * Constructor |
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| 80 | * |
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| 81 | * @api |
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| 82 | * |
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| 83 | * @param string $sourceName |
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| 84 | * @param integer $sourceIndex |
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| 85 | * @param string $encoding |
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| 86 | * @param \ScssPhp\ScssPhp\Cache $cache |
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| 87 | */ |
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| 88 | public function __construct($sourceName, $sourceIndex = 0, $encoding = 'utf-8', $cache = null, $cssOnly = false) |
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| 89 | { |
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| 90 | $this->sourceName = $sourceName ?: '(stdin)'; |
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| 91 | $this->sourceIndex = $sourceIndex; |
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| 92 | $this->charset = null; |
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| 93 | $this->utf8 = ! $encoding || strtolower($encoding) === 'utf-8'; |
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| 94 | $this->patternModifiers = $this->utf8 ? 'Aisu' : 'Ais'; |
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| 95 | $this->commentsSeen = []; |
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| 96 | $this->commentsSeen = []; |
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| 97 | $this->allowVars = true; |
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| 98 | $this->cssOnly = $cssOnly; |
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| 99 | |||
| 100 | if (empty(static::$operatorPattern)) { |
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| 101 | static::$operatorPattern = '([*\/%+-]|[!=]\=|\>\=?|\<\=\>|\<\=?|and|or)'; |
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| 102 | |||
| 103 | $commentSingle = '\/\/'; |
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| 104 | $commentMultiLeft = '\/\*'; |
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| 105 | $commentMultiRight = '\*\/'; |
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| 106 | |||
| 107 | static::$commentPattern = $commentMultiLeft . '.*?' . $commentMultiRight; |
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| 108 | static::$whitePattern = $this->utf8 |
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| 109 | ? '/' . $commentSingle . '[^\n]*\s*|(' . static::$commentPattern . ')\s*|\s+/AisuS' |
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| 110 | : '/' . $commentSingle . '[^\n]*\s*|(' . static::$commentPattern . ')\s*|\s+/AisS'; |
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| 111 | } |
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| 112 | |||
| 113 | if ($cache) { |
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| 114 | $this->cache = $cache; |
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| 115 | } |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Get source file name |
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| 120 | * |
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| 121 | * @api |
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| 122 | * |
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| 123 | * @return string |
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| 124 | */ |
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| 125 | public function getSourceName() |
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| 126 | { |
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| 127 | return $this->sourceName; |
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| 128 | } |
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| 129 | |||
| 130 | /** |
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| 131 | * Throw parser error |
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| 132 | * |
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| 133 | * @api |
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| 134 | * |
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| 135 | * @param string $msg |
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| 136 | * |
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| 137 | * @throws \ScssPhp\ScssPhp\Exception\ParserException |
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| 138 | */ |
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| 139 | public function throwParseError($msg = 'parse error') |
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| 162 | } |
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| 163 | |||
| 164 | /** |
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| 165 | * Parser buffer |
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| 166 | * |
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| 167 | * @api |
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| 168 | * |
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| 169 | * @param string $buffer |
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| 170 | * |
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| 171 | * @return \ScssPhp\ScssPhp\Block |
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| 172 | */ |
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| 173 | public function parse($buffer) |
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| 174 | { |
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| 175 | if ($this->cache) { |
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| 176 | $cacheKey = $this->sourceName . ':' . md5($buffer); |
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| 177 | $parseOptions = [ |
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| 178 | 'charset' => $this->charset, |
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| 179 | 'utf8' => $this->utf8, |
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| 180 | ]; |
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| 181 | $v = $this->cache->getCache('parse', $cacheKey, $parseOptions); |
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| 182 | |||
| 183 | if (! \is_null($v)) { |
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| 184 | return $v; |
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| 185 | } |
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| 186 | } |
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| 187 | |||
| 188 | // strip BOM (byte order marker) |
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| 189 | if (substr($buffer, 0, 3) === "\xef\xbb\xbf") { |
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| 190 | $buffer = substr($buffer, 3); |
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| 191 | } |
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| 192 | |||
| 193 | $this->buffer = rtrim($buffer, "\x00..\x1f"); |
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| 194 | $this->count = 0; |
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| 195 | $this->env = null; |
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| 196 | $this->inParens = false; |
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| 197 | $this->eatWhiteDefault = true; |
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| 198 | |||
| 199 | $this->saveEncoding(); |
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| 200 | $this->extractLineNumbers($buffer); |
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| 201 | |||
| 202 | $this->pushBlock(null); // root block |
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| 203 | $this->whitespace(); |
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| 204 | $this->pushBlock(null); |
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| 205 | $this->popBlock(); |
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| 206 | |||
| 207 | while ($this->parseChunk()) { |
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| 208 | ; |
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| 209 | } |
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| 210 | |||
| 211 | if ($this->count !== \strlen($this->buffer)) { |
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| 212 | $this->throwParseError(); |
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| 213 | } |
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| 214 | |||
| 215 | if (! empty($this->env->parent)) { |
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| 216 | $this->throwParseError('unclosed block'); |
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| 217 | } |
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| 218 | |||
| 219 | if ($this->charset) { |
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| 220 | array_unshift($this->env->children, $this->charset); |
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| 221 | } |
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| 222 | |||
| 223 | $this->restoreEncoding(); |
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| 224 | |||
| 225 | if ($this->cache) { |
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| 226 | $this->cache->setCache('parse', $cacheKey, $this->env, $parseOptions); |
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| 227 | } |
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| 228 | |||
| 229 | return $this->env; |
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| 230 | } |
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| 231 | |||
| 232 | /** |
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| 233 | * Parse a value or value list |
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| 234 | * |
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| 235 | * @api |
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| 236 | * |
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| 237 | * @param string $buffer |
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| 238 | * @param string|array $out |
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| 239 | * |
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| 240 | * @return boolean |
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| 241 | */ |
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| 242 | public function parseValue($buffer, &$out) |
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| 243 | { |
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| 244 | $this->count = 0; |
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| 245 | $this->env = null; |
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| 246 | $this->inParens = false; |
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| 247 | $this->eatWhiteDefault = true; |
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| 248 | $this->buffer = (string) $buffer; |
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| 249 | |||
| 250 | $this->saveEncoding(); |
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| 251 | |||
| 252 | $list = $this->valueList($out); |
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| 253 | |||
| 254 | $this->restoreEncoding(); |
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| 255 | |||
| 256 | return $list; |
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| 257 | } |
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| 258 | |||
| 259 | /** |
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| 260 | * Parse a selector or selector list |
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| 261 | * |
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| 262 | * @api |
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| 263 | * |
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| 264 | * @param string $buffer |
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| 265 | * @param string|array $out |
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| 266 | * |
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| 267 | * @return boolean |
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| 268 | */ |
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| 269 | public function parseSelector($buffer, &$out) |
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| 270 | { |
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| 271 | $this->count = 0; |
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| 272 | $this->env = null; |
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| 273 | $this->inParens = false; |
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| 274 | $this->eatWhiteDefault = true; |
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| 275 | $this->buffer = (string) $buffer; |
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| 276 | |||
| 277 | $this->saveEncoding(); |
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| 278 | |||
| 279 | $selector = $this->selectors($out); |
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| 280 | |||
| 281 | $this->restoreEncoding(); |
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| 282 | |||
| 283 | return $selector; |
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| 284 | } |
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| 285 | |||
| 286 | /** |
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| 287 | * Parse a media Query |
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| 288 | * |
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| 289 | * @api |
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| 290 | * |
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| 291 | * @param string $buffer |
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| 292 | * @param string|array $out |
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| 293 | * |
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| 294 | * @return boolean |
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| 295 | */ |
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| 296 | public function parseMediaQueryList($buffer, &$out) |
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| 297 | { |
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| 298 | $this->count = 0; |
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| 299 | $this->env = null; |
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| 300 | $this->inParens = false; |
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| 301 | $this->eatWhiteDefault = true; |
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| 302 | $this->buffer = (string) $buffer; |
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| 303 | |||
| 304 | $this->saveEncoding(); |
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| 305 | |||
| 306 | $isMediaQuery = $this->mediaQueryList($out); |
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| 307 | |||
| 308 | $this->restoreEncoding(); |
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| 309 | |||
| 310 | return $isMediaQuery; |
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| 311 | } |
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| 312 | |||
| 313 | /** |
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| 314 | * Parse a single chunk off the head of the buffer and append it to the |
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| 315 | * current parse environment. |
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| 316 | * |
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| 317 | * Returns false when the buffer is empty, or when there is an error. |
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| 318 | * |
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| 319 | * This function is called repeatedly until the entire document is |
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| 320 | * parsed. |
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| 321 | * |
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| 322 | * This parser is most similar to a recursive descent parser. Single |
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| 323 | * functions represent discrete grammatical rules for the language, and |
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| 324 | * they are able to capture the text that represents those rules. |
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| 325 | * |
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| 326 | * Consider the function Compiler::keyword(). (All parse functions are |
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| 327 | * structured the same.) |
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| 328 | * |
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| 329 | * The function takes a single reference argument. When calling the |
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| 330 | * function it will attempt to match a keyword on the head of the buffer. |
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| 331 | * If it is successful, it will place the keyword in the referenced |
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| 332 | * argument, advance the position in the buffer, and return true. If it |
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| 333 | * fails then it won't advance the buffer and it will return false. |
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| 334 | * |
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| 335 | * All of these parse functions are powered by Compiler::match(), which behaves |
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| 336 | * the same way, but takes a literal regular expression. Sometimes it is |
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| 337 | * more convenient to use match instead of creating a new function. |
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| 338 | * |
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| 339 | * Because of the format of the functions, to parse an entire string of |
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| 340 | * grammatical rules, you can chain them together using &&. |
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| 341 | * |
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| 342 | * But, if some of the rules in the chain succeed before one fails, then |
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| 343 | * the buffer position will be left at an invalid state. In order to |
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| 344 | * avoid this, Compiler::seek() is used to remember and set buffer positions. |
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| 345 | * |
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| 346 | * Before parsing a chain, use $s = $this->count to remember the current |
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| 347 | * position into $s. Then if a chain fails, use $this->seek($s) to |
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| 348 | * go back where we started. |
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| 349 | * |
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| 350 | * @return boolean |
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| 351 | */ |
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| 352 | protected function parseChunk() |
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| 353 | { |
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| 354 | $s = $this->count; |
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| 355 | |||
| 356 | // the directives |
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| 357 | if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] === '@') { |
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| 358 | if ( |
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| 359 | $this->literal('@at-root', 8) && |
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| 360 | ($this->selectors($selector) || true) && |
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| 361 | ($this->map($with) || true) && |
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| 362 | (($this->matchChar('(') && |
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| 363 | $this->interpolation($with) && |
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| 364 | $this->matchChar(')')) || true) && |
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| 365 | $this->matchChar('{', false) |
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| 366 | ) { |
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| 367 | if ($this->cssOnly) { |
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| 368 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 369 | } |
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| 370 | |||
| 371 | $atRoot = $this->pushSpecialBlock(Type::T_AT_ROOT, $s); |
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| 372 | $atRoot->selector = $selector; |
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| 373 | $atRoot->with = $with; |
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| 374 | |||
| 375 | return true; |
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| 376 | } |
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| 377 | |||
| 378 | $this->seek($s); |
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| 379 | |||
| 380 | if ( |
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| 381 | $this->literal('@media', 6) && |
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| 382 | $this->mediaQueryList($mediaQueryList) && |
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| 383 | $this->matchChar('{', false) |
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| 384 | ) { |
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| 385 | $media = $this->pushSpecialBlock(Type::T_MEDIA, $s); |
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| 386 | $media->queryList = $mediaQueryList[2]; |
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| 387 | |||
| 388 | return true; |
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| 389 | } |
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| 390 | |||
| 391 | $this->seek($s); |
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| 392 | |||
| 393 | if ( |
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| 394 | $this->literal('@mixin', 6) && |
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| 395 | $this->keyword($mixinName) && |
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| 396 | ($this->argumentDef($args) || true) && |
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| 397 | $this->matchChar('{', false) |
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| 398 | ) { |
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| 399 | if ($this->cssOnly) { |
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| 400 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 401 | } |
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| 402 | |||
| 403 | $mixin = $this->pushSpecialBlock(Type::T_MIXIN, $s); |
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| 404 | $mixin->name = $mixinName; |
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| 405 | $mixin->args = $args; |
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| 406 | |||
| 407 | return true; |
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| 408 | } |
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| 409 | |||
| 410 | $this->seek($s); |
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| 411 | |||
| 412 | if ( |
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| 413 | ($this->literal('@include', 8) && |
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| 414 | $this->keyword($mixinName) && |
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| 415 | ($this->matchChar('(') && |
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| 416 | ($this->argValues($argValues) || true) && |
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| 417 | $this->matchChar(')') || true) && |
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| 418 | ($this->end()) || |
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| 419 | ($this->literal('using', 5) && |
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| 420 | $this->argumentDef($argUsing) && |
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| 421 | ($this->end() || $this->matchChar('{') && $hasBlock = true)) || |
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| 422 | $this->matchChar('{') && $hasBlock = true) |
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| 423 | ) { |
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| 424 | if ($this->cssOnly) { |
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| 425 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 426 | } |
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| 427 | |||
| 428 | $child = [ |
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| 429 | Type::T_INCLUDE, |
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| 430 | $mixinName, |
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| 431 | isset($argValues) ? $argValues : null, |
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| 432 | null, |
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| 433 | isset($argUsing) ? $argUsing : null |
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| 434 | ]; |
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| 435 | |||
| 436 | if (! empty($hasBlock)) { |
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| 437 | $include = $this->pushSpecialBlock(Type::T_INCLUDE, $s); |
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| 438 | $include->child = $child; |
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| 439 | } else { |
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| 440 | $this->append($child, $s); |
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| 441 | } |
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| 442 | |||
| 443 | return true; |
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| 444 | } |
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| 445 | |||
| 446 | $this->seek($s); |
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| 447 | |||
| 448 | if ( |
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| 449 | $this->literal('@scssphp-import-once', 20) && |
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| 450 | $this->valueList($importPath) && |
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| 451 | $this->end() |
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| 452 | ) { |
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| 453 | if ($this->cssOnly) { |
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| 454 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 455 | } |
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| 456 | |||
| 457 | $this->append([Type::T_SCSSPHP_IMPORT_ONCE, $importPath], $s); |
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| 458 | |||
| 459 | return true; |
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| 460 | } |
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| 461 | |||
| 462 | $this->seek($s); |
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| 463 | |||
| 464 | if ( |
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| 465 | $this->literal('@import', 7) && |
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| 466 | $this->valueList($importPath) && |
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| 467 | $importPath[0] !== Type::T_FUNCTION_CALL && |
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| 468 | $this->end() |
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| 469 | ) { |
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| 470 | $this->append([Type::T_IMPORT, $importPath], $s); |
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| 471 | |||
| 472 | return true; |
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| 473 | } |
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| 474 | |||
| 475 | $this->seek($s); |
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| 476 | |||
| 477 | if ( |
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| 478 | $this->literal('@import', 7) && |
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| 479 | $this->url($importPath) && |
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| 480 | $this->end() |
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| 481 | ) { |
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| 482 | if ($this->cssOnly) { |
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| 483 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 484 | } |
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| 485 | |||
| 486 | $this->append([Type::T_IMPORT, $importPath], $s); |
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| 487 | |||
| 488 | return true; |
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| 489 | } |
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| 490 | |||
| 491 | $this->seek($s); |
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| 492 | |||
| 493 | if ( |
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| 494 | $this->literal('@extend', 7) && |
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| 495 | $this->selectors($selectors) && |
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| 496 | $this->end() |
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| 497 | ) { |
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| 498 | if ($this->cssOnly) { |
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| 499 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 500 | } |
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| 501 | |||
| 502 | // check for '!flag' |
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| 503 | $optional = $this->stripOptionalFlag($selectors); |
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| 504 | $this->append([Type::T_EXTEND, $selectors, $optional], $s); |
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| 505 | |||
| 506 | return true; |
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| 507 | } |
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| 508 | |||
| 509 | $this->seek($s); |
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| 510 | |||
| 511 | if ( |
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| 512 | $this->literal('@function', 9) && |
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| 513 | $this->keyword($fnName) && |
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| 514 | $this->argumentDef($args) && |
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| 515 | $this->matchChar('{', false) |
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| 516 | ) { |
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| 517 | if ($this->cssOnly) { |
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| 518 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 519 | } |
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| 520 | |||
| 521 | $func = $this->pushSpecialBlock(Type::T_FUNCTION, $s); |
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| 522 | $func->name = $fnName; |
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| 523 | $func->args = $args; |
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| 524 | |||
| 525 | return true; |
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| 526 | } |
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| 527 | |||
| 528 | $this->seek($s); |
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| 529 | |||
| 530 | if ( |
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| 531 | $this->literal('@break', 6) && |
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| 532 | $this->end() |
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| 533 | ) { |
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| 534 | if ($this->cssOnly) { |
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| 535 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 536 | } |
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| 537 | |||
| 538 | $this->append([Type::T_BREAK], $s); |
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| 539 | |||
| 540 | return true; |
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| 541 | } |
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| 542 | |||
| 543 | $this->seek($s); |
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| 544 | |||
| 545 | if ( |
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| 546 | $this->literal('@continue', 9) && |
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| 547 | $this->end() |
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| 548 | ) { |
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| 549 | if ($this->cssOnly) { |
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| 550 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 551 | } |
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| 552 | |||
| 553 | $this->append([Type::T_CONTINUE], $s); |
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| 554 | |||
| 555 | return true; |
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| 556 | } |
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| 557 | |||
| 558 | $this->seek($s); |
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| 559 | |||
| 560 | if ( |
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| 561 | $this->literal('@return', 7) && |
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| 562 | ($this->valueList($retVal) || true) && |
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| 563 | $this->end() |
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| 564 | ) { |
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| 565 | if ($this->cssOnly) { |
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| 566 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 567 | } |
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| 568 | |||
| 569 | $this->append([Type::T_RETURN, isset($retVal) ? $retVal : [Type::T_NULL]], $s); |
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| 570 | |||
| 571 | return true; |
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| 572 | } |
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| 573 | |||
| 574 | $this->seek($s); |
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| 575 | |||
| 576 | if ( |
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| 577 | $this->literal('@each', 5) && |
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| 578 | $this->genericList($varNames, 'variable', ',', false) && |
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| 579 | $this->literal('in', 2) && |
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| 580 | $this->valueList($list) && |
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| 581 | $this->matchChar('{', false) |
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| 582 | ) { |
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| 583 | if ($this->cssOnly) { |
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| 584 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
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| 585 | } |
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| 586 | |||
| 587 | $each = $this->pushSpecialBlock(Type::T_EACH, $s); |
||
| 588 | |||
| 589 | foreach ($varNames[2] as $varName) { |
||
| 590 | $each->vars[] = $varName[1]; |
||
| 591 | } |
||
| 592 | |||
| 593 | $each->list = $list; |
||
| 594 | |||
| 595 | return true; |
||
| 596 | } |
||
| 597 | |||
| 598 | $this->seek($s); |
||
| 599 | |||
| 600 | if ( |
||
| 601 | $this->literal('@while', 6) && |
||
| 602 | $this->expression($cond) && |
||
| 603 | $this->matchChar('{', false) |
||
| 604 | ) { |
||
| 605 | if ($this->cssOnly) { |
||
| 606 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 607 | } |
||
| 608 | |||
| 609 | while ( |
||
| 610 | $cond[0] === Type::T_LIST && |
||
| 611 | ! empty($cond['enclosing']) && |
||
| 612 | $cond['enclosing'] === 'parent' && |
||
| 613 | \count($cond[2]) == 1 |
||
| 614 | ) { |
||
| 615 | $cond = reset($cond[2]); |
||
| 616 | } |
||
| 617 | |||
| 618 | $while = $this->pushSpecialBlock(Type::T_WHILE, $s); |
||
| 619 | $while->cond = $cond; |
||
| 620 | |||
| 621 | return true; |
||
| 622 | } |
||
| 623 | |||
| 624 | $this->seek($s); |
||
| 625 | |||
| 626 | if ( |
||
| 627 | $this->literal('@for', 4) && |
||
| 628 | $this->variable($varName) && |
||
| 629 | $this->literal('from', 4) && |
||
| 630 | $this->expression($start) && |
||
| 631 | ($this->literal('through', 7) || |
||
| 632 | ($forUntil = true && $this->literal('to', 2))) && |
||
| 633 | $this->expression($end) && |
||
| 634 | $this->matchChar('{', false) |
||
| 635 | ) { |
||
| 636 | if ($this->cssOnly) { |
||
| 637 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 638 | } |
||
| 639 | |||
| 640 | $for = $this->pushSpecialBlock(Type::T_FOR, $s); |
||
| 641 | $for->var = $varName[1]; |
||
| 642 | $for->start = $start; |
||
| 643 | $for->end = $end; |
||
| 644 | $for->until = isset($forUntil); |
||
| 645 | |||
| 646 | return true; |
||
| 647 | } |
||
| 648 | |||
| 649 | $this->seek($s); |
||
| 650 | |||
| 651 | if ( |
||
| 652 | $this->literal('@if', 3) && |
||
| 653 | $this->functionCallArgumentsList($cond, false) && |
||
| 654 | $this->matchChar('{', false) |
||
| 655 | ) { |
||
| 656 | if ($this->cssOnly) { |
||
| 657 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 658 | } |
||
| 659 | |||
| 660 | $if = $this->pushSpecialBlock(Type::T_IF, $s); |
||
| 661 | |||
| 662 | while ( |
||
| 663 | $cond[0] === Type::T_LIST && |
||
| 664 | ! empty($cond['enclosing']) && |
||
| 665 | $cond['enclosing'] === 'parent' && |
||
| 666 | \count($cond[2]) == 1 |
||
| 667 | ) { |
||
| 668 | $cond = reset($cond[2]); |
||
| 669 | } |
||
| 670 | |||
| 671 | $if->cond = $cond; |
||
| 672 | $if->cases = []; |
||
| 673 | |||
| 674 | return true; |
||
| 675 | } |
||
| 676 | |||
| 677 | $this->seek($s); |
||
| 678 | |||
| 679 | if ( |
||
| 680 | $this->literal('@debug', 6) && |
||
| 681 | $this->functionCallArgumentsList($value, false) && |
||
| 682 | $this->end() |
||
| 683 | ) { |
||
| 684 | if ($this->cssOnly) { |
||
| 685 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 686 | } |
||
| 687 | |||
| 688 | $this->append([Type::T_DEBUG, $value], $s); |
||
| 689 | |||
| 690 | return true; |
||
| 691 | } |
||
| 692 | |||
| 693 | $this->seek($s); |
||
| 694 | |||
| 695 | if ( |
||
| 696 | $this->literal('@warn', 5) && |
||
| 697 | $this->functionCallArgumentsList($value, false) && |
||
| 698 | $this->end() |
||
| 699 | ) { |
||
| 700 | if ($this->cssOnly) { |
||
| 701 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 702 | } |
||
| 703 | |||
| 704 | $this->append([Type::T_WARN, $value], $s); |
||
| 705 | |||
| 706 | return true; |
||
| 707 | } |
||
| 708 | |||
| 709 | $this->seek($s); |
||
| 710 | |||
| 711 | if ( |
||
| 712 | $this->literal('@error', 6) && |
||
| 713 | $this->functionCallArgumentsList($value, false) && |
||
| 714 | $this->end() |
||
| 715 | ) { |
||
| 716 | if ($this->cssOnly) { |
||
| 717 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 718 | } |
||
| 719 | |||
| 720 | $this->append([Type::T_ERROR, $value], $s); |
||
| 721 | |||
| 722 | return true; |
||
| 723 | } |
||
| 724 | |||
| 725 | $this->seek($s); |
||
| 726 | |||
| 727 | if ( |
||
| 728 | $this->literal('@content', 8) && |
||
| 729 | ($this->end() || |
||
| 730 | $this->matchChar('(') && |
||
| 731 | $this->argValues($argContent) && |
||
| 732 | $this->matchChar(')') && |
||
| 733 | $this->end()) |
||
| 734 | ) { |
||
| 735 | if ($this->cssOnly) { |
||
| 736 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 737 | } |
||
| 738 | |||
| 739 | $this->append([Type::T_MIXIN_CONTENT, isset($argContent) ? $argContent : null], $s); |
||
| 740 | |||
| 741 | return true; |
||
| 742 | } |
||
| 743 | |||
| 744 | $this->seek($s); |
||
| 745 | |||
| 746 | $last = $this->last(); |
||
| 747 | |||
| 748 | if (isset($last) && $last[0] === Type::T_IF) { |
||
| 749 | list(, $if) = $last; |
||
| 750 | |||
| 751 | if ($this->literal('@else', 5)) { |
||
| 752 | if ($this->matchChar('{', false)) { |
||
| 753 | $else = $this->pushSpecialBlock(Type::T_ELSE, $s); |
||
| 754 | } elseif ( |
||
| 755 | $this->literal('if', 2) && |
||
| 756 | $this->valueList($cond) && |
||
| 757 | $this->matchChar('{', false) |
||
| 758 | ) { |
||
| 759 | $else = $this->pushSpecialBlock(Type::T_ELSEIF, $s); |
||
| 760 | $else->cond = $cond; |
||
| 761 | } |
||
| 762 | |||
| 763 | if (isset($else)) { |
||
| 764 | $else->dontAppend = true; |
||
| 765 | $if->cases[] = $else; |
||
| 766 | |||
| 767 | return true; |
||
| 768 | } |
||
| 769 | } |
||
| 770 | |||
| 771 | $this->seek($s); |
||
| 772 | } |
||
| 773 | |||
| 774 | // only retain the first @charset directive encountered |
||
| 775 | if ( |
||
| 776 | $this->literal('@charset', 8) && |
||
| 777 | $this->valueList($charset) && |
||
| 778 | $this->end() |
||
| 779 | ) { |
||
| 780 | if (! isset($this->charset)) { |
||
| 781 | $statement = [Type::T_CHARSET, $charset]; |
||
| 782 | |||
| 783 | list($line, $column) = $this->getSourcePosition($s); |
||
| 784 | |||
| 785 | $statement[static::SOURCE_LINE] = $line; |
||
| 786 | $statement[static::SOURCE_COLUMN] = $column; |
||
| 787 | $statement[static::SOURCE_INDEX] = $this->sourceIndex; |
||
| 788 | |||
| 789 | $this->charset = $statement; |
||
| 790 | } |
||
| 791 | |||
| 792 | return true; |
||
| 793 | } |
||
| 794 | |||
| 795 | $this->seek($s); |
||
| 796 | |||
| 797 | if ( |
||
| 798 | $this->literal('@supports', 9) && |
||
| 799 | ($t1 = $this->supportsQuery($supportQuery)) && |
||
| 800 | ($t2 = $this->matchChar('{', false)) |
||
| 801 | ) { |
||
| 802 | $directive = $this->pushSpecialBlock(Type::T_DIRECTIVE, $s); |
||
| 803 | $directive->name = 'supports'; |
||
| 804 | $directive->value = $supportQuery; |
||
| 805 | |||
| 806 | return true; |
||
| 807 | } |
||
| 808 | |||
| 809 | $this->seek($s); |
||
| 810 | |||
| 811 | // doesn't match built in directive, do generic one |
||
| 812 | if ( |
||
| 813 | $this->matchChar('@', false) && |
||
| 814 | $this->keyword($dirName) && |
||
| 815 | $this->directiveValue($dirValue, '{') |
||
| 816 | ) { |
||
| 817 | if ($dirName === 'media') { |
||
| 818 | $directive = $this->pushSpecialBlock(Type::T_MEDIA, $s); |
||
| 819 | } else { |
||
| 820 | $directive = $this->pushSpecialBlock(Type::T_DIRECTIVE, $s); |
||
| 821 | $directive->name = $dirName; |
||
| 822 | } |
||
| 823 | |||
| 824 | if (isset($dirValue)) { |
||
| 825 | $directive->value = $dirValue; |
||
| 826 | } |
||
| 827 | |||
| 828 | return true; |
||
| 829 | } |
||
| 830 | |||
| 831 | $this->seek($s); |
||
| 832 | |||
| 833 | // maybe it's a generic blockless directive |
||
| 834 | if ( |
||
| 835 | $this->matchChar('@', false) && |
||
| 836 | $this->keyword($dirName) && |
||
| 837 | $this->directiveValue($dirValue) && |
||
| 838 | $this->end() |
||
| 839 | ) { |
||
| 840 | $this->append([Type::T_DIRECTIVE, [$dirName, $dirValue]], $s); |
||
| 841 | |||
| 842 | return true; |
||
| 843 | } |
||
| 844 | |||
| 845 | $this->seek($s); |
||
| 846 | |||
| 847 | return false; |
||
| 848 | } |
||
| 849 | |||
| 850 | $inCssSelector = null; |
||
| 851 | if ($this->cssOnly) { |
||
| 852 | $inCssSelector = (! empty($this->env->parent) && |
||
| 853 | ! in_array($this->env->type, [Type::T_DIRECTIVE, Type::T_MEDIA])); |
||
| 854 | } |
||
| 855 | // custom properties : right part is static |
||
| 856 | if ( |
||
| 857 | ($this->customProperty($name) || |
||
| 858 | ($inCssSelector && $this->propertyName($name))) && |
||
| 859 | $this->matchChar(':', false) |
||
| 860 | ) { |
||
| 861 | $start = $this->count; |
||
| 862 | |||
| 863 | // but can be complex and finish with ; or } |
||
| 864 | foreach ([';','}'] as $ending) { |
||
| 865 | if ( |
||
| 866 | $this->openString($ending, $stringValue, '(', ')', false) && |
||
| 867 | $this->end() |
||
| 868 | ) { |
||
| 869 | $end = $this->count; |
||
| 870 | $value = $stringValue; |
||
| 871 | |||
| 872 | // check if we have only a partial value due to nested [] or { } to take in account |
||
| 873 | $nestingPairs = [['[', ']'], ['{', '}']]; |
||
| 874 | |||
| 875 | foreach ($nestingPairs as $nestingPair) { |
||
| 876 | $p = strpos($this->buffer, $nestingPair[0], $start); |
||
| 877 | |||
| 878 | if ($p && $p < $end) { |
||
| 879 | $this->seek($start); |
||
| 880 | |||
| 881 | if ( |
||
| 882 | $this->openString($ending, $stringValue, $nestingPair[0], $nestingPair[1], false) && |
||
| 883 | $this->end() && |
||
| 884 | $this->count > $end |
||
| 885 | ) { |
||
| 886 | $end = $this->count; |
||
| 887 | $value = $stringValue; |
||
| 888 | } |
||
| 889 | } |
||
| 890 | } |
||
| 891 | |||
| 892 | $this->seek($end); |
||
| 893 | $this->append([Type::T_CUSTOM_PROPERTY, $name, $value], $s); |
||
| 894 | |||
| 895 | return true; |
||
| 896 | } |
||
| 897 | } |
||
| 898 | |||
| 899 | // TODO: output an error here if nothing found according to sass spec |
||
| 900 | } |
||
| 901 | |||
| 902 | $this->seek($s); |
||
| 903 | |||
| 904 | // property shortcut |
||
| 905 | // captures most properties before having to parse a selector |
||
| 906 | if ( |
||
| 907 | $this->keyword($name, false) && |
||
| 908 | $this->literal(': ', 2) && |
||
| 909 | $this->valueList($value) && |
||
| 910 | $this->end() |
||
| 911 | ) { |
||
| 912 | $name = [Type::T_STRING, '', [$name]]; |
||
| 913 | $this->append([Type::T_ASSIGN, $name, $value], $s); |
||
| 914 | |||
| 915 | return true; |
||
| 916 | } |
||
| 917 | |||
| 918 | $this->seek($s); |
||
| 919 | |||
| 920 | // variable assigns |
||
| 921 | if ( |
||
| 922 | $this->variable($name) && |
||
| 923 | $this->matchChar(':') && |
||
| 924 | $this->valueList($value) && |
||
| 925 | $this->end() |
||
| 926 | ) { |
||
| 927 | if ($this->cssOnly) { |
||
| 928 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 929 | } |
||
| 930 | |||
| 931 | // check for '!flag' |
||
| 932 | $assignmentFlags = $this->stripAssignmentFlags($value); |
||
| 933 | $this->append([Type::T_ASSIGN, $name, $value, $assignmentFlags], $s); |
||
| 934 | |||
| 935 | return true; |
||
| 936 | } |
||
| 937 | |||
| 938 | $this->seek($s); |
||
| 939 | |||
| 940 | // misc |
||
| 941 | if ($this->literal('-->', 3)) { |
||
| 942 | return true; |
||
| 943 | } |
||
| 944 | |||
| 945 | // opening css block |
||
| 946 | if ( |
||
| 947 | $this->selectors($selectors) && |
||
| 948 | $this->matchChar('{', false) |
||
| 949 | ) { |
||
| 950 | if ($this->cssOnly) { |
||
| 951 | if ($inCssSelector) { |
||
| 952 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 953 | } |
||
| 954 | } |
||
| 955 | |||
| 956 | $this->pushBlock($selectors, $s); |
||
| 957 | |||
| 958 | if ($this->eatWhiteDefault) { |
||
| 959 | $this->whitespace(); |
||
| 960 | $this->append(null); // collect comments at the beginning if needed |
||
| 961 | } |
||
| 962 | |||
| 963 | return true; |
||
| 964 | } |
||
| 965 | |||
| 966 | $this->seek($s); |
||
| 967 | |||
| 968 | // property assign, or nested assign |
||
| 969 | if ( |
||
| 970 | $this->propertyName($name) && |
||
| 971 | $this->matchChar(':') |
||
| 972 | ) { |
||
| 973 | $foundSomething = false; |
||
| 974 | |||
| 975 | if ($this->valueList($value)) { |
||
| 976 | if (empty($this->env->parent)) { |
||
| 977 | $this->throwParseError('expected "{"'); |
||
| 978 | } |
||
| 979 | |||
| 980 | $this->append([Type::T_ASSIGN, $name, $value], $s); |
||
| 981 | $foundSomething = true; |
||
| 982 | } |
||
| 983 | |||
| 984 | if ($this->matchChar('{', false)) { |
||
| 985 | if ($this->cssOnly) { |
||
| 986 | $this->throwParseError('SCSS syntax not allowed in CSS file'); |
||
| 987 | } |
||
| 988 | |||
| 989 | $propBlock = $this->pushSpecialBlock(Type::T_NESTED_PROPERTY, $s); |
||
| 990 | $propBlock->prefix = $name; |
||
| 991 | $propBlock->hasValue = $foundSomething; |
||
| 992 | |||
| 993 | $foundSomething = true; |
||
| 994 | } elseif ($foundSomething) { |
||
| 995 | $foundSomething = $this->end(); |
||
| 996 | } |
||
| 997 | |||
| 998 | if ($foundSomething) { |
||
| 999 | return true; |
||
| 1000 | } |
||
| 1001 | } |
||
| 1002 | |||
| 1003 | $this->seek($s); |
||
| 1004 | |||
| 1005 | // closing a block |
||
| 1006 | if ($this->matchChar('}', false)) { |
||
| 1007 | $block = $this->popBlock(); |
||
| 1008 | |||
| 1009 | if (! isset($block->type) || $block->type !== Type::T_IF) { |
||
| 1010 | if ($this->env->parent) { |
||
| 1011 | $this->append(null); // collect comments before next statement if needed |
||
| 1012 | } |
||
| 1013 | } |
||
| 1014 | |||
| 1015 | if (isset($block->type) && $block->type === Type::T_INCLUDE) { |
||
| 1016 | $include = $block->child; |
||
| 1017 | unset($block->child); |
||
| 1018 | $include[3] = $block; |
||
| 1019 | $this->append($include, $s); |
||
| 1020 | } elseif (empty($block->dontAppend)) { |
||
| 1021 | $type = isset($block->type) ? $block->type : Type::T_BLOCK; |
||
| 1022 | $this->append([$type, $block], $s); |
||
| 1023 | } |
||
| 1024 | |||
| 1025 | // collect comments just after the block closing if needed |
||
| 1026 | if ($this->eatWhiteDefault) { |
||
| 1027 | $this->whitespace(); |
||
| 1028 | |||
| 1029 | if ($this->env->comments) { |
||
| 1030 | $this->append(null); |
||
| 1031 | } |
||
| 1032 | } |
||
| 1033 | |||
| 1034 | return true; |
||
| 1035 | } |
||
| 1036 | |||
| 1037 | // extra stuff |
||
| 1038 | if ( |
||
| 1039 | $this->matchChar(';') || |
||
| 1040 | $this->literal('<!--', 4) |
||
| 1041 | ) { |
||
| 1042 | return true; |
||
| 1043 | } |
||
| 1044 | |||
| 1045 | return false; |
||
| 1046 | } |
||
| 1047 | |||
| 1048 | /** |
||
| 1049 | * Push block onto parse tree |
||
| 1050 | * |
||
| 1051 | * @param array $selectors |
||
| 1052 | * @param integer $pos |
||
| 1053 | * |
||
| 1054 | * @return \ScssPhp\ScssPhp\Block |
||
| 1055 | */ |
||
| 1056 | protected function pushBlock($selectors, $pos = 0) |
||
| 1057 | { |
||
| 1058 | list($line, $column) = $this->getSourcePosition($pos); |
||
| 1059 | |||
| 1060 | $b = new Block(); |
||
| 1061 | $b->sourceName = $this->sourceName; |
||
| 1062 | $b->sourceLine = $line; |
||
| 1063 | $b->sourceColumn = $column; |
||
| 1064 | $b->sourceIndex = $this->sourceIndex; |
||
| 1065 | $b->selectors = $selectors; |
||
| 1066 | $b->comments = []; |
||
| 1067 | $b->parent = $this->env; |
||
| 1068 | |||
| 1069 | if (! $this->env) { |
||
| 1070 | $b->children = []; |
||
| 1071 | } elseif (empty($this->env->children)) { |
||
| 1072 | $this->env->children = $this->env->comments; |
||
| 1073 | $b->children = []; |
||
| 1074 | $this->env->comments = []; |
||
| 1075 | } else { |
||
| 1076 | $b->children = $this->env->comments; |
||
| 1077 | $this->env->comments = []; |
||
| 1078 | } |
||
| 1079 | |||
| 1080 | $this->env = $b; |
||
| 1081 | |||
| 1082 | // collect comments at the beginning of a block if needed |
||
| 1083 | if ($this->eatWhiteDefault) { |
||
| 1084 | $this->whitespace(); |
||
| 1085 | |||
| 1086 | if ($this->env->comments) { |
||
| 1087 | $this->append(null); |
||
| 1088 | } |
||
| 1089 | } |
||
| 1090 | |||
| 1091 | return $b; |
||
| 1092 | } |
||
| 1093 | |||
| 1094 | /** |
||
| 1095 | * Push special (named) block onto parse tree |
||
| 1096 | * |
||
| 1097 | * @param string $type |
||
| 1098 | * @param integer $pos |
||
| 1099 | * |
||
| 1100 | * @return \ScssPhp\ScssPhp\Block |
||
| 1101 | */ |
||
| 1102 | protected function pushSpecialBlock($type, $pos) |
||
| 1103 | { |
||
| 1104 | $block = $this->pushBlock(null, $pos); |
||
| 1105 | $block->type = $type; |
||
| 1106 | |||
| 1107 | return $block; |
||
| 1108 | } |
||
| 1109 | |||
| 1110 | /** |
||
| 1111 | * Pop scope and return last block |
||
| 1112 | * |
||
| 1113 | * @return \ScssPhp\ScssPhp\Block |
||
| 1114 | * |
||
| 1115 | * @throws \Exception |
||
| 1116 | */ |
||
| 1117 | protected function popBlock() |
||
| 1118 | { |
||
| 1119 | |||
| 1120 | // collect comments ending just before of a block closing |
||
| 1121 | if ($this->env->comments) { |
||
| 1122 | $this->append(null); |
||
| 1123 | } |
||
| 1124 | |||
| 1125 | // pop the block |
||
| 1126 | $block = $this->env; |
||
| 1127 | |||
| 1128 | if (empty($block->parent)) { |
||
| 1129 | $this->throwParseError('unexpected }'); |
||
| 1130 | } |
||
| 1131 | |||
| 1132 | if ($block->type == Type::T_AT_ROOT) { |
||
| 1133 | // keeps the parent in case of self selector & |
||
| 1134 | $block->selfParent = $block->parent; |
||
| 1135 | } |
||
| 1136 | |||
| 1137 | $this->env = $block->parent; |
||
| 1138 | |||
| 1139 | unset($block->parent); |
||
| 1140 | |||
| 1141 | return $block; |
||
| 1142 | } |
||
| 1143 | |||
| 1144 | /** |
||
| 1145 | * Peek input stream |
||
| 1146 | * |
||
| 1147 | * @param string $regex |
||
| 1148 | * @param array $out |
||
| 1149 | * @param integer $from |
||
| 1150 | * |
||
| 1151 | * @return integer |
||
| 1152 | */ |
||
| 1153 | protected function peek($regex, &$out, $from = null) |
||
| 1154 | { |
||
| 1155 | if (! isset($from)) { |
||
| 1156 | $from = $this->count; |
||
| 1157 | } |
||
| 1158 | |||
| 1159 | $r = '/' . $regex . '/' . $this->patternModifiers; |
||
| 1160 | $result = preg_match($r, $this->buffer, $out, null, $from); |
||
| 1161 | |||
| 1162 | return $result; |
||
| 1163 | } |
||
| 1164 | |||
| 1165 | /** |
||
| 1166 | * Seek to position in input stream (or return current position in input stream) |
||
| 1167 | * |
||
| 1168 | * @param integer $where |
||
| 1169 | */ |
||
| 1170 | protected function seek($where) |
||
| 1171 | { |
||
| 1172 | $this->count = $where; |
||
| 1173 | } |
||
| 1174 | |||
| 1175 | /** |
||
| 1176 | * Match string looking for either ending delim, escape, or string interpolation |
||
| 1177 | * |
||
| 1178 | * {@internal This is a workaround for preg_match's 250K string match limit. }} |
||
| 1179 | * |
||
| 1180 | * @param array $m Matches (passed by reference) |
||
| 1181 | * @param string $delim Delimiter |
||
| 1182 | * |
||
| 1183 | * @return boolean True if match; false otherwise |
||
| 1184 | */ |
||
| 1185 | protected function matchString(&$m, $delim) |
||
| 1186 | { |
||
| 1187 | $token = null; |
||
| 1188 | |||
| 1189 | $end = \strlen($this->buffer); |
||
| 1190 | |||
| 1191 | // look for either ending delim, escape, or string interpolation |
||
| 1192 | foreach (['#{', '\\', "\r", $delim] as $lookahead) { |
||
| 1193 | $pos = strpos($this->buffer, $lookahead, $this->count); |
||
| 1194 | |||
| 1195 | if ($pos !== false && $pos < $end) { |
||
| 1196 | $end = $pos; |
||
| 1197 | $token = $lookahead; |
||
| 1198 | } |
||
| 1199 | } |
||
| 1200 | |||
| 1201 | if (! isset($token)) { |
||
| 1202 | return false; |
||
| 1203 | } |
||
| 1204 | |||
| 1205 | $match = substr($this->buffer, $this->count, $end - $this->count); |
||
| 1206 | $m = [ |
||
| 1207 | $match . $token, |
||
| 1208 | $match, |
||
| 1209 | $token |
||
| 1210 | ]; |
||
| 1211 | $this->count = $end + \strlen($token); |
||
| 1212 | |||
| 1213 | return true; |
||
| 1214 | } |
||
| 1215 | |||
| 1216 | /** |
||
| 1217 | * Try to match something on head of buffer |
||
| 1218 | * |
||
| 1219 | * @param string $regex |
||
| 1220 | * @param array $out |
||
| 1221 | * @param boolean $eatWhitespace |
||
| 1222 | * |
||
| 1223 | * @return boolean |
||
| 1224 | */ |
||
| 1225 | protected function match($regex, &$out, $eatWhitespace = null) |
||
| 1226 | { |
||
| 1227 | $r = '/' . $regex . '/' . $this->patternModifiers; |
||
| 1228 | |||
| 1229 | if (! preg_match($r, $this->buffer, $out, null, $this->count)) { |
||
| 1230 | return false; |
||
| 1231 | } |
||
| 1232 | |||
| 1233 | $this->count += \strlen($out[0]); |
||
| 1234 | |||
| 1235 | if (! isset($eatWhitespace)) { |
||
| 1236 | $eatWhitespace = $this->eatWhiteDefault; |
||
| 1237 | } |
||
| 1238 | |||
| 1239 | if ($eatWhitespace) { |
||
| 1240 | $this->whitespace(); |
||
| 1241 | } |
||
| 1242 | |||
| 1243 | return true; |
||
| 1244 | } |
||
| 1245 | |||
| 1246 | /** |
||
| 1247 | * Match a single string |
||
| 1248 | * |
||
| 1249 | * @param string $char |
||
| 1250 | * @param boolean $eatWhitespace |
||
| 1251 | * |
||
| 1252 | * @return boolean |
||
| 1253 | */ |
||
| 1254 | protected function matchChar($char, $eatWhitespace = null) |
||
| 1255 | { |
||
| 1256 | if (! isset($this->buffer[$this->count]) || $this->buffer[$this->count] !== $char) { |
||
| 1257 | return false; |
||
| 1258 | } |
||
| 1259 | |||
| 1260 | $this->count++; |
||
| 1261 | |||
| 1262 | if (! isset($eatWhitespace)) { |
||
| 1263 | $eatWhitespace = $this->eatWhiteDefault; |
||
| 1264 | } |
||
| 1265 | |||
| 1266 | if ($eatWhitespace) { |
||
| 1267 | $this->whitespace(); |
||
| 1268 | } |
||
| 1269 | |||
| 1270 | return true; |
||
| 1271 | } |
||
| 1272 | |||
| 1273 | /** |
||
| 1274 | * Match literal string |
||
| 1275 | * |
||
| 1276 | * @param string $what |
||
| 1277 | * @param integer $len |
||
| 1278 | * @param boolean $eatWhitespace |
||
| 1279 | * |
||
| 1280 | * @return boolean |
||
| 1281 | */ |
||
| 1282 | protected function literal($what, $len, $eatWhitespace = null) |
||
| 1283 | { |
||
| 1284 | if (strcasecmp(substr($this->buffer, $this->count, $len), $what) !== 0) { |
||
| 1285 | return false; |
||
| 1286 | } |
||
| 1287 | |||
| 1288 | $this->count += $len; |
||
| 1289 | |||
| 1290 | if (! isset($eatWhitespace)) { |
||
| 1291 | $eatWhitespace = $this->eatWhiteDefault; |
||
| 1292 | } |
||
| 1293 | |||
| 1294 | if ($eatWhitespace) { |
||
| 1295 | $this->whitespace(); |
||
| 1296 | } |
||
| 1297 | |||
| 1298 | return true; |
||
| 1299 | } |
||
| 1300 | |||
| 1301 | /** |
||
| 1302 | * Match some whitespace |
||
| 1303 | * |
||
| 1304 | * @return boolean |
||
| 1305 | */ |
||
| 1306 | protected function whitespace() |
||
| 1307 | { |
||
| 1308 | $gotWhite = false; |
||
| 1309 | |||
| 1310 | while (preg_match(static::$whitePattern, $this->buffer, $m, null, $this->count)) { |
||
| 1311 | if (isset($m[1]) && empty($this->commentsSeen[$this->count])) { |
||
| 1312 | // comment that are kept in the output CSS |
||
| 1313 | $comment = []; |
||
| 1314 | $startCommentCount = $this->count; |
||
| 1315 | $endCommentCount = $this->count + \strlen($m[1]); |
||
| 1316 | |||
| 1317 | // find interpolations in comment |
||
| 1318 | $p = strpos($this->buffer, '#{', $this->count); |
||
| 1319 | |||
| 1320 | while ($p !== false && $p < $endCommentCount) { |
||
| 1321 | $c = substr($this->buffer, $this->count, $p - $this->count); |
||
| 1322 | $comment[] = $c; |
||
| 1323 | $this->count = $p; |
||
| 1324 | $out = null; |
||
| 1325 | |||
| 1326 | if ($this->interpolation($out)) { |
||
| 1327 | // keep right spaces in the following string part |
||
| 1328 | if ($out[3]) { |
||
| 1329 | while ($this->buffer[$this->count - 1] !== '}') { |
||
| 1330 | $this->count--; |
||
| 1331 | } |
||
| 1332 | |||
| 1333 | $out[3] = ''; |
||
| 1334 | } |
||
| 1335 | |||
| 1336 | $comment[] = [Type::T_COMMENT, substr($this->buffer, $p, $this->count - $p), $out]; |
||
| 1337 | } else { |
||
| 1338 | $comment[] = substr($this->buffer, $this->count, 2); |
||
| 1339 | |||
| 1340 | $this->count += 2; |
||
| 1341 | } |
||
| 1342 | |||
| 1343 | $p = strpos($this->buffer, '#{', $this->count); |
||
| 1344 | } |
||
| 1345 | |||
| 1346 | // remaining part |
||
| 1347 | $c = substr($this->buffer, $this->count, $endCommentCount - $this->count); |
||
| 1348 | |||
| 1349 | if (! $comment) { |
||
| 1350 | // single part static comment |
||
| 1351 | $this->appendComment([Type::T_COMMENT, $c]); |
||
| 1352 | } else { |
||
| 1353 | $comment[] = $c; |
||
| 1354 | $staticComment = substr($this->buffer, $startCommentCount, $endCommentCount - $startCommentCount); |
||
| 1355 | $this->appendComment([Type::T_COMMENT, $staticComment, [Type::T_STRING, '', $comment]]); |
||
| 1356 | } |
||
| 1357 | |||
| 1358 | $this->commentsSeen[$startCommentCount] = true; |
||
| 1359 | $this->count = $endCommentCount; |
||
| 1360 | } else { |
||
| 1361 | // comment that are ignored and not kept in the output css |
||
| 1362 | $this->count += \strlen($m[0]); |
||
| 1363 | } |
||
| 1364 | |||
| 1365 | $gotWhite = true; |
||
| 1366 | } |
||
| 1367 | |||
| 1368 | return $gotWhite; |
||
| 1369 | } |
||
| 1370 | |||
| 1371 | /** |
||
| 1372 | * Append comment to current block |
||
| 1373 | * |
||
| 1374 | * @param array $comment |
||
| 1375 | */ |
||
| 1376 | protected function appendComment($comment) |
||
| 1377 | { |
||
| 1378 | if (! $this->discardComments) { |
||
| 1379 | $this->env->comments[] = $comment; |
||
| 1380 | } |
||
| 1381 | } |
||
| 1382 | |||
| 1383 | /** |
||
| 1384 | * Append statement to current block |
||
| 1385 | * |
||
| 1386 | * @param array $statement |
||
| 1387 | * @param integer $pos |
||
| 1388 | */ |
||
| 1389 | protected function append($statement, $pos = null) |
||
| 1390 | { |
||
| 1391 | if (! \is_null($statement)) { |
||
| 1392 | if (! \is_null($pos)) { |
||
| 1393 | list($line, $column) = $this->getSourcePosition($pos); |
||
| 1394 | |||
| 1395 | $statement[static::SOURCE_LINE] = $line; |
||
| 1396 | $statement[static::SOURCE_COLUMN] = $column; |
||
| 1397 | $statement[static::SOURCE_INDEX] = $this->sourceIndex; |
||
| 1398 | } |
||
| 1399 | |||
| 1400 | $this->env->children[] = $statement; |
||
| 1401 | } |
||
| 1402 | |||
| 1403 | $comments = $this->env->comments; |
||
| 1404 | |||
| 1405 | if ($comments) { |
||
| 1406 | $this->env->children = array_merge($this->env->children, $comments); |
||
| 1407 | $this->env->comments = []; |
||
| 1408 | } |
||
| 1409 | } |
||
| 1410 | |||
| 1411 | /** |
||
| 1412 | * Returns last child was appended |
||
| 1413 | * |
||
| 1414 | * @return array|null |
||
| 1415 | */ |
||
| 1416 | protected function last() |
||
| 1417 | { |
||
| 1418 | $i = \count($this->env->children) - 1; |
||
| 1419 | |||
| 1420 | if (isset($this->env->children[$i])) { |
||
| 1421 | return $this->env->children[$i]; |
||
| 1422 | } |
||
| 1423 | } |
||
| 1424 | |||
| 1425 | /** |
||
| 1426 | * Parse media query list |
||
| 1427 | * |
||
| 1428 | * @param array $out |
||
| 1429 | * |
||
| 1430 | * @return boolean |
||
| 1431 | */ |
||
| 1432 | protected function mediaQueryList(&$out) |
||
| 1433 | { |
||
| 1434 | return $this->genericList($out, 'mediaQuery', ',', false); |
||
| 1435 | } |
||
| 1436 | |||
| 1437 | /** |
||
| 1438 | * Parse media query |
||
| 1439 | * |
||
| 1440 | * @param array $out |
||
| 1441 | * |
||
| 1442 | * @return boolean |
||
| 1443 | */ |
||
| 1444 | protected function mediaQuery(&$out) |
||
| 1445 | { |
||
| 1446 | $expressions = null; |
||
| 1447 | $parts = []; |
||
| 1448 | |||
| 1449 | if ( |
||
| 1450 | ($this->literal('only', 4) && ($only = true) || |
||
| 1451 | $this->literal('not', 3) && ($not = true) || true) && |
||
| 1452 | $this->mixedKeyword($mediaType) |
||
| 1453 | ) { |
||
| 1454 | $prop = [Type::T_MEDIA_TYPE]; |
||
| 1455 | |||
| 1456 | if (isset($only)) { |
||
| 1457 | $prop[] = [Type::T_KEYWORD, 'only']; |
||
| 1458 | } |
||
| 1459 | |||
| 1460 | if (isset($not)) { |
||
| 1461 | $prop[] = [Type::T_KEYWORD, 'not']; |
||
| 1462 | } |
||
| 1463 | |||
| 1464 | $media = [Type::T_LIST, '', []]; |
||
| 1465 | |||
| 1466 | foreach ((array) $mediaType as $type) { |
||
| 1467 | if (\is_array($type)) { |
||
| 1468 | $media[2][] = $type; |
||
| 1469 | } else { |
||
| 1470 | $media[2][] = [Type::T_KEYWORD, $type]; |
||
| 1471 | } |
||
| 1472 | } |
||
| 1473 | |||
| 1474 | $prop[] = $media; |
||
| 1475 | $parts[] = $prop; |
||
| 1476 | } |
||
| 1477 | |||
| 1478 | if (empty($parts) || $this->literal('and', 3)) { |
||
| 1479 | $this->genericList($expressions, 'mediaExpression', 'and', false); |
||
| 1480 | |||
| 1481 | if (\is_array($expressions)) { |
||
| 1482 | $parts = array_merge($parts, $expressions[2]); |
||
| 1483 | } |
||
| 1484 | } |
||
| 1485 | |||
| 1486 | $out = $parts; |
||
| 1487 | |||
| 1488 | return true; |
||
| 1489 | } |
||
| 1490 | |||
| 1491 | /** |
||
| 1492 | * Parse supports query |
||
| 1493 | * |
||
| 1494 | * @param array $out |
||
| 1495 | * |
||
| 1496 | * @return boolean |
||
| 1497 | */ |
||
| 1498 | protected function supportsQuery(&$out) |
||
| 1499 | { |
||
| 1500 | $expressions = null; |
||
| 1501 | $parts = []; |
||
| 1502 | |||
| 1503 | $s = $this->count; |
||
| 1504 | |||
| 1505 | $not = false; |
||
| 1506 | |||
| 1507 | if ( |
||
| 1508 | ($this->literal('not', 3) && ($not = true) || true) && |
||
| 1509 | $this->matchChar('(') && |
||
| 1510 | ($this->expression($property)) && |
||
| 1511 | $this->literal(': ', 2) && |
||
| 1512 | $this->valueList($value) && |
||
| 1513 | $this->matchChar(')') |
||
| 1514 | ) { |
||
| 1515 | $support = [Type::T_STRING, '', [[Type::T_KEYWORD, ($not ? 'not ' : '') . '(']]]; |
||
| 1516 | $support[2][] = $property; |
||
| 1517 | $support[2][] = [Type::T_KEYWORD, ': ']; |
||
| 1518 | $support[2][] = $value; |
||
| 1519 | $support[2][] = [Type::T_KEYWORD, ')']; |
||
| 1520 | |||
| 1521 | $parts[] = $support; |
||
| 1522 | $s = $this->count; |
||
| 1523 | } else { |
||
| 1524 | $this->seek($s); |
||
| 1525 | } |
||
| 1526 | |||
| 1527 | if ( |
||
| 1528 | $this->matchChar('(') && |
||
| 1529 | $this->supportsQuery($subQuery) && |
||
| 1530 | $this->matchChar(')') |
||
| 1531 | ) { |
||
| 1532 | $parts[] = [Type::T_STRING, '', [[Type::T_KEYWORD, '('], $subQuery, [Type::T_KEYWORD, ')']]]; |
||
| 1533 | $s = $this->count; |
||
| 1534 | } else { |
||
| 1535 | $this->seek($s); |
||
| 1536 | } |
||
| 1537 | |||
| 1538 | if ( |
||
| 1539 | $this->literal('not', 3) && |
||
| 1540 | $this->supportsQuery($subQuery) |
||
| 1541 | ) { |
||
| 1542 | $parts[] = [Type::T_STRING, '', [[Type::T_KEYWORD, 'not '], $subQuery]]; |
||
| 1543 | $s = $this->count; |
||
| 1544 | } else { |
||
| 1545 | $this->seek($s); |
||
| 1546 | } |
||
| 1547 | |||
| 1548 | if ( |
||
| 1549 | $this->literal('selector(', 9) && |
||
| 1550 | $this->selector($selector) && |
||
| 1551 | $this->matchChar(')') |
||
| 1552 | ) { |
||
| 1553 | $support = [Type::T_STRING, '', [[Type::T_KEYWORD, 'selector(']]]; |
||
| 1554 | |||
| 1555 | $selectorList = [Type::T_LIST, '', []]; |
||
| 1556 | |||
| 1557 | foreach ($selector as $sc) { |
||
| 1558 | $compound = [Type::T_STRING, '', []]; |
||
| 1559 | |||
| 1560 | foreach ($sc as $scp) { |
||
| 1561 | if (\is_array($scp)) { |
||
| 1562 | $compound[2][] = $scp; |
||
| 1563 | } else { |
||
| 1564 | $compound[2][] = [Type::T_KEYWORD, $scp]; |
||
| 1565 | } |
||
| 1566 | } |
||
| 1567 | |||
| 1568 | $selectorList[2][] = $compound; |
||
| 1569 | } |
||
| 1570 | |||
| 1571 | $support[2][] = $selectorList; |
||
| 1572 | $support[2][] = [Type::T_KEYWORD, ')']; |
||
| 1573 | $parts[] = $support; |
||
| 1574 | $s = $this->count; |
||
| 1575 | } else { |
||
| 1576 | $this->seek($s); |
||
| 1577 | } |
||
| 1578 | |||
| 1579 | if ($this->variable($var) or $this->interpolation($var)) { |
||
| 1580 | $parts[] = $var; |
||
| 1581 | $s = $this->count; |
||
| 1582 | } else { |
||
| 1583 | $this->seek($s); |
||
| 1584 | } |
||
| 1585 | |||
| 1586 | if ( |
||
| 1587 | $this->literal('and', 3) && |
||
| 1588 | $this->genericList($expressions, 'supportsQuery', ' and', false) |
||
| 1589 | ) { |
||
| 1590 | array_unshift($expressions[2], [Type::T_STRING, '', $parts]); |
||
| 1591 | |||
| 1592 | $parts = [$expressions]; |
||
| 1593 | $s = $this->count; |
||
| 1594 | } else { |
||
| 1595 | $this->seek($s); |
||
| 1596 | } |
||
| 1597 | |||
| 1598 | if ( |
||
| 1599 | $this->literal('or', 2) && |
||
| 1600 | $this->genericList($expressions, 'supportsQuery', ' or', false) |
||
| 1601 | ) { |
||
| 1602 | array_unshift($expressions[2], [Type::T_STRING, '', $parts]); |
||
| 1603 | |||
| 1604 | $parts = [$expressions]; |
||
| 1605 | $s = $this->count; |
||
| 1606 | } else { |
||
| 1607 | $this->seek($s); |
||
| 1608 | } |
||
| 1609 | |||
| 1610 | if (\count($parts)) { |
||
| 1611 | if ($this->eatWhiteDefault) { |
||
| 1612 | $this->whitespace(); |
||
| 1613 | } |
||
| 1614 | |||
| 1615 | $out = [Type::T_STRING, '', $parts]; |
||
| 1616 | |||
| 1617 | return true; |
||
| 1618 | } |
||
| 1619 | |||
| 1620 | return false; |
||
| 1621 | } |
||
| 1622 | |||
| 1623 | |||
| 1624 | /** |
||
| 1625 | * Parse media expression |
||
| 1626 | * |
||
| 1627 | * @param array $out |
||
| 1628 | * |
||
| 1629 | * @return boolean |
||
| 1630 | */ |
||
| 1631 | protected function mediaExpression(&$out) |
||
| 1632 | { |
||
| 1633 | $s = $this->count; |
||
| 1634 | $value = null; |
||
| 1635 | |||
| 1636 | if ( |
||
| 1637 | $this->matchChar('(') && |
||
| 1638 | $this->expression($feature) && |
||
| 1639 | ($this->matchChar(':') && |
||
| 1640 | $this->expression($value) || true) && |
||
| 1641 | $this->matchChar(')') |
||
| 1642 | ) { |
||
| 1643 | $out = [Type::T_MEDIA_EXPRESSION, $feature]; |
||
| 1644 | |||
| 1645 | if ($value) { |
||
| 1646 | $out[] = $value; |
||
| 1647 | } |
||
| 1648 | |||
| 1649 | return true; |
||
| 1650 | } |
||
| 1651 | |||
| 1652 | $this->seek($s); |
||
| 1653 | |||
| 1654 | return false; |
||
| 1655 | } |
||
| 1656 | |||
| 1657 | /** |
||
| 1658 | * Parse argument values |
||
| 1659 | * |
||
| 1660 | * @param array $out |
||
| 1661 | * |
||
| 1662 | * @return boolean |
||
| 1663 | */ |
||
| 1664 | protected function argValues(&$out) |
||
| 1665 | { |
||
| 1666 | $discardComments = $this->discardComments; |
||
| 1667 | $this->discardComments = true; |
||
| 1668 | |||
| 1669 | if ($this->genericList($list, 'argValue', ',', false)) { |
||
| 1670 | $out = $list[2]; |
||
| 1671 | |||
| 1672 | $this->discardComments = $discardComments; |
||
| 1673 | |||
| 1674 | return true; |
||
| 1675 | } |
||
| 1676 | |||
| 1677 | $this->discardComments = $discardComments; |
||
| 1678 | |||
| 1679 | return false; |
||
| 1680 | } |
||
| 1681 | |||
| 1682 | /** |
||
| 1683 | * Parse argument value |
||
| 1684 | * |
||
| 1685 | * @param array $out |
||
| 1686 | * |
||
| 1687 | * @return boolean |
||
| 1688 | */ |
||
| 1689 | protected function argValue(&$out) |
||
| 1690 | { |
||
| 1691 | $s = $this->count; |
||
| 1692 | |||
| 1693 | $keyword = null; |
||
| 1694 | |||
| 1695 | if (! $this->variable($keyword) || ! $this->matchChar(':')) { |
||
| 1696 | $this->seek($s); |
||
| 1697 | |||
| 1698 | $keyword = null; |
||
| 1699 | } |
||
| 1700 | |||
| 1701 | if ($this->genericList($value, 'expression', '', true)) { |
||
| 1702 | $out = [$keyword, $value, false]; |
||
| 1703 | $s = $this->count; |
||
| 1704 | |||
| 1705 | if ($this->literal('...', 3)) { |
||
| 1706 | $out[2] = true; |
||
| 1707 | } else { |
||
| 1708 | $this->seek($s); |
||
| 1709 | } |
||
| 1710 | |||
| 1711 | return true; |
||
| 1712 | } |
||
| 1713 | |||
| 1714 | return false; |
||
| 1715 | } |
||
| 1716 | |||
| 1717 | /** |
||
| 1718 | * Parse directive value list that considers $vars as keyword |
||
| 1719 | * |
||
| 1720 | * @param array $out |
||
| 1721 | * @param boolean|string $endChar |
||
| 1722 | * |
||
| 1723 | * @return boolean |
||
| 1724 | */ |
||
| 1725 | protected function directiveValue(&$out, $endChar = false) |
||
| 1726 | { |
||
| 1727 | $s = $this->count; |
||
| 1728 | |||
| 1729 | if ($this->variable($out)) { |
||
| 1730 | if ($endChar && $this->matchChar($endChar, false)) { |
||
| 1731 | return true; |
||
| 1732 | } |
||
| 1733 | |||
| 1734 | if (! $endChar && $this->end()) { |
||
| 1735 | return true; |
||
| 1736 | } |
||
| 1737 | } |
||
| 1738 | |||
| 1739 | $this->seek($s); |
||
| 1740 | |||
| 1741 | if ($endChar && $this->openString($endChar, $out)) { |
||
| 1742 | if ($this->matchChar($endChar, false)) { |
||
| 1743 | return true; |
||
| 1744 | } |
||
| 1745 | } |
||
| 1746 | |||
| 1747 | $this->seek($s); |
||
| 1748 | |||
| 1749 | $allowVars = $this->allowVars; |
||
| 1750 | $this->allowVars = false; |
||
| 1751 | |||
| 1752 | $res = $this->genericList($out, 'spaceList', ','); |
||
| 1753 | $this->allowVars = $allowVars; |
||
| 1754 | |||
| 1755 | if ($res) { |
||
| 1756 | if ($endChar && $this->matchChar($endChar, false)) { |
||
| 1757 | return true; |
||
| 1758 | } |
||
| 1759 | |||
| 1760 | if (! $endChar && $this->end()) { |
||
| 1761 | return true; |
||
| 1762 | } |
||
| 1763 | } |
||
| 1764 | |||
| 1765 | $this->seek($s); |
||
| 1766 | |||
| 1767 | if ($endChar && $this->matchChar($endChar, false)) { |
||
| 1768 | return true; |
||
| 1769 | } |
||
| 1770 | |||
| 1771 | return false; |
||
| 1772 | } |
||
| 1773 | |||
| 1774 | /** |
||
| 1775 | * Parse comma separated value list |
||
| 1776 | * |
||
| 1777 | * @param array $out |
||
| 1778 | * |
||
| 1779 | * @return boolean |
||
| 1780 | */ |
||
| 1781 | protected function valueList(&$out) |
||
| 1782 | { |
||
| 1783 | $discardComments = $this->discardComments; |
||
| 1784 | $this->discardComments = true; |
||
| 1785 | $res = $this->genericList($out, 'spaceList', ','); |
||
| 1786 | $this->discardComments = $discardComments; |
||
| 1787 | |||
| 1788 | return $res; |
||
| 1789 | } |
||
| 1790 | |||
| 1791 | /** |
||
| 1792 | * Parse a function call, where externals () are part of the call |
||
| 1793 | * and not of the value list |
||
| 1794 | * |
||
| 1795 | * @param $out |
||
| 1796 | * @param bool $mandatoryParenthesis |
||
| 1797 | * @return bool |
||
| 1798 | */ |
||
| 1799 | protected function functionCallArgumentsList(&$out, $mandatoryParenthesis = true) |
||
| 1800 | { |
||
| 1801 | $s = $this->count; |
||
| 1802 | |||
| 1803 | if ( |
||
| 1804 | $this->matchChar('(') && |
||
| 1805 | $this->valueList($out) && |
||
| 1806 | $this->matchChar(')') |
||
| 1807 | ) { |
||
| 1808 | return true; |
||
| 1809 | } |
||
| 1810 | |||
| 1811 | if (! $mandatoryParenthesis) { |
||
| 1812 | $this->seek($s); |
||
| 1813 | |||
| 1814 | if ($this->valueList($out)) { |
||
| 1815 | return true; |
||
| 1816 | } |
||
| 1817 | } |
||
| 1818 | |||
| 1819 | $this->seek($s); |
||
| 1820 | |||
| 1821 | return false; |
||
| 1822 | } |
||
| 1823 | |||
| 1824 | /** |
||
| 1825 | * Parse space separated value list |
||
| 1826 | * |
||
| 1827 | * @param array $out |
||
| 1828 | * |
||
| 1829 | * @return boolean |
||
| 1830 | */ |
||
| 1831 | protected function spaceList(&$out) |
||
| 1834 | } |
||
| 1835 | |||
| 1836 | /** |
||
| 1837 | * Parse generic list |
||
| 1838 | * |
||
| 1839 | * @param array $out |
||
| 1840 | * @param callable $parseItem |
||
| 1841 | * @param string $delim |
||
| 1842 | * @param boolean $flatten |
||
| 1843 | * |
||
| 1844 | * @return boolean |
||
| 1845 | */ |
||
| 1846 | protected function genericList(&$out, $parseItem, $delim = '', $flatten = true) |
||
| 1847 | { |
||
| 1848 | $s = $this->count; |
||
| 1849 | $items = []; |
||
| 1850 | $value = null; |
||
| 1851 | |||
| 1852 | while ($this->$parseItem($value)) { |
||
| 1853 | $trailing_delim = false; |
||
| 1854 | $items[] = $value; |
||
| 1855 | |||
| 1856 | if ($delim) { |
||
| 1857 | if (! $this->literal($delim, \strlen($delim))) { |
||
| 1858 | break; |
||
| 1859 | } |
||
| 1860 | |||
| 1861 | $trailing_delim = true; |
||
| 1862 | } else { |
||
| 1863 | // if no delim watch that a keyword didn't eat the single/double quote |
||
| 1864 | // from the following starting string |
||
| 1865 | if ($value[0] === Type::T_KEYWORD) { |
||
| 1866 | $word = $value[1]; |
||
| 1867 | |||
| 1868 | $last_char = substr($word, -1); |
||
| 1869 | |||
| 1870 | if ( |
||
| 1871 | strlen($word) > 1 && |
||
| 1872 | in_array($last_char, [ "'", '"']) && |
||
| 1873 | substr($word, -2, 1) !== '\\' |
||
| 1874 | ) { |
||
| 1875 | // if there is a non escaped opening quote in the keyword, this seems unlikely a mistake |
||
| 1876 | $word = str_replace('\\' . $last_char, '\\\\', $word); |
||
| 1877 | if (strpos($word, $last_char) < strlen($word) - 1) { |
||
| 1878 | continue; |
||
| 1879 | } |
||
| 1880 | |||
| 1881 | $currentCount = $this->count; |
||
| 1882 | |||
| 1883 | // let's try to rewind to previous char and try a parse |
||
| 1884 | $this->count--; |
||
| 1885 | // in case the keyword also eat spaces |
||
| 1886 | while (substr($this->buffer, $this->count, 1) !== $last_char) { |
||
| 1887 | $this->count--; |
||
| 1888 | } |
||
| 1889 | |||
| 1890 | $nextValue = null; |
||
| 1891 | if ($this->$parseItem($nextValue)) { |
||
| 1892 | if ($nextValue[0] === Type::T_KEYWORD && $nextValue[1] === $last_char) { |
||
| 1893 | // bad try, forget it |
||
| 1894 | $this->seek($currentCount); |
||
| 1895 | continue; |
||
| 1896 | } |
||
| 1897 | if ($nextValue[0] !== Type::T_STRING) { |
||
| 1898 | // bad try, forget it |
||
| 1899 | $this->seek($currentCount); |
||
| 1900 | continue; |
||
| 1901 | } |
||
| 1902 | |||
| 1903 | // OK it was a good idea |
||
| 1904 | $value[1] = substr($value[1], 0, -1); |
||
| 1905 | array_pop($items); |
||
| 1906 | $items[] = $value; |
||
| 1907 | $items[] = $nextValue; |
||
| 1908 | } else { |
||
| 1909 | // bad try, forget it |
||
| 1910 | $this->seek($currentCount); |
||
| 1911 | continue; |
||
| 1912 | } |
||
| 1913 | } |
||
| 1914 | } |
||
| 1915 | } |
||
| 1916 | } |
||
| 1917 | |||
| 1918 | if (! $items) { |
||
| 1919 | $this->seek($s); |
||
| 1920 | |||
| 1921 | return false; |
||
| 1922 | } |
||
| 1923 | |||
| 1924 | if ($trailing_delim) { |
||
| 1925 | $items[] = [Type::T_NULL]; |
||
| 1926 | } |
||
| 1927 | |||
| 1928 | if ($flatten && \count($items) === 1) { |
||
| 1929 | $out = $items[0]; |
||
| 1930 | } else { |
||
| 1931 | $out = [Type::T_LIST, $delim, $items]; |
||
| 1932 | } |
||
| 1933 | |||
| 1934 | return true; |
||
| 1935 | } |
||
| 1936 | |||
| 1937 | /** |
||
| 1938 | * Parse expression |
||
| 1939 | * |
||
| 1940 | * @param array $out |
||
| 1941 | * @param boolean $listOnly |
||
| 1942 | * @param boolean $lookForExp |
||
| 1943 | * |
||
| 1944 | * @return boolean |
||
| 1945 | */ |
||
| 1946 | protected function expression(&$out, $listOnly = false, $lookForExp = true) |
||
| 1947 | { |
||
| 1948 | $s = $this->count; |
||
| 1949 | $discard = $this->discardComments; |
||
| 1950 | $this->discardComments = true; |
||
| 1951 | $allowedTypes = ($listOnly ? [Type::T_LIST] : [Type::T_LIST, Type::T_MAP]); |
||
| 1952 | |||
| 1953 | if ($this->matchChar('(')) { |
||
| 1954 | if ($this->enclosedExpression($lhs, $s, ')', $allowedTypes)) { |
||
| 1955 | if ($lookForExp) { |
||
| 1956 | $out = $this->expHelper($lhs, 0); |
||
| 1957 | } else { |
||
| 1958 | $out = $lhs; |
||
| 1959 | } |
||
| 1960 | |||
| 1961 | $this->discardComments = $discard; |
||
| 1962 | |||
| 1963 | return true; |
||
| 1964 | } |
||
| 1965 | |||
| 1966 | $this->seek($s); |
||
| 1967 | } |
||
| 1968 | |||
| 1969 | if (\in_array(Type::T_LIST, $allowedTypes) && $this->matchChar('[')) { |
||
| 1970 | if ($this->enclosedExpression($lhs, $s, ']', [Type::T_LIST])) { |
||
| 1971 | if ($lookForExp) { |
||
| 1972 | $out = $this->expHelper($lhs, 0); |
||
| 1973 | } else { |
||
| 1974 | $out = $lhs; |
||
| 1975 | } |
||
| 1976 | |||
| 1977 | $this->discardComments = $discard; |
||
| 1978 | |||
| 1979 | return true; |
||
| 1980 | } |
||
| 1981 | |||
| 1982 | $this->seek($s); |
||
| 1983 | } |
||
| 1984 | |||
| 1985 | if (! $listOnly && $this->value($lhs)) { |
||
| 1986 | if ($lookForExp) { |
||
| 1987 | $out = $this->expHelper($lhs, 0); |
||
| 1988 | } else { |
||
| 1989 | $out = $lhs; |
||
| 1990 | } |
||
| 1991 | |||
| 1992 | $this->discardComments = $discard; |
||
| 1993 | |||
| 1994 | return true; |
||
| 1995 | } |
||
| 1996 | |||
| 1997 | $this->discardComments = $discard; |
||
| 1998 | |||
| 1999 | return false; |
||
| 2000 | } |
||
| 2001 | |||
| 2002 | /** |
||
| 2003 | * Parse expression specifically checking for lists in parenthesis or brackets |
||
| 2004 | * |
||
| 2005 | * @param array $out |
||
| 2006 | * @param integer $s |
||
| 2007 | * @param string $closingParen |
||
| 2008 | * @param array $allowedTypes |
||
| 2009 | * |
||
| 2010 | * @return boolean |
||
| 2011 | */ |
||
| 2012 | protected function enclosedExpression(&$out, $s, $closingParen = ')', $allowedTypes = [Type::T_LIST, Type::T_MAP]) |
||
| 2013 | { |
||
| 2014 | if ($this->matchChar($closingParen) && \in_array(Type::T_LIST, $allowedTypes)) { |
||
| 2015 | $out = [Type::T_LIST, '', []]; |
||
| 2016 | |||
| 2017 | switch ($closingParen) { |
||
| 2018 | case ')': |
||
| 2019 | $out['enclosing'] = 'parent'; // parenthesis list |
||
| 2020 | break; |
||
| 2021 | |||
| 2022 | case ']': |
||
| 2023 | $out['enclosing'] = 'bracket'; // bracketed list |
||
| 2024 | break; |
||
| 2025 | } |
||
| 2026 | |||
| 2027 | return true; |
||
| 2028 | } |
||
| 2029 | |||
| 2030 | if ( |
||
| 2031 | $this->valueList($out) && |
||
| 2032 | $this->matchChar($closingParen) && ! ($closingParen === ')' && |
||
| 2033 | \in_array($out[0], [Type::T_EXPRESSION, Type::T_UNARY])) && |
||
| 2034 | \in_array(Type::T_LIST, $allowedTypes) |
||
| 2035 | ) { |
||
| 2036 | if ($out[0] !== Type::T_LIST || ! empty($out['enclosing'])) { |
||
| 2037 | $out = [Type::T_LIST, '', [$out]]; |
||
| 2038 | } |
||
| 2039 | |||
| 2040 | switch ($closingParen) { |
||
| 2041 | case ')': |
||
| 2042 | $out['enclosing'] = 'parent'; // parenthesis list |
||
| 2043 | break; |
||
| 2044 | |||
| 2045 | case ']': |
||
| 2046 | $out['enclosing'] = 'bracket'; // bracketed list |
||
| 2047 | break; |
||
| 2048 | } |
||
| 2049 | |||
| 2050 | return true; |
||
| 2051 | } |
||
| 2052 | |||
| 2053 | $this->seek($s); |
||
| 2054 | |||
| 2055 | if (\in_array(Type::T_MAP, $allowedTypes) && $this->map($out)) { |
||
| 2056 | return true; |
||
| 2057 | } |
||
| 2058 | |||
| 2059 | return false; |
||
| 2060 | } |
||
| 2061 | |||
| 2062 | /** |
||
| 2063 | * Parse left-hand side of subexpression |
||
| 2064 | * |
||
| 2065 | * @param array $lhs |
||
| 2066 | * @param integer $minP |
||
| 2067 | * |
||
| 2068 | * @return array |
||
| 2069 | */ |
||
| 2070 | protected function expHelper($lhs, $minP) |
||
| 2071 | { |
||
| 2072 | $operators = static::$operatorPattern; |
||
| 2073 | |||
| 2074 | $ss = $this->count; |
||
| 2075 | $whiteBefore = isset($this->buffer[$this->count - 1]) && |
||
| 2076 | ctype_space($this->buffer[$this->count - 1]); |
||
| 2077 | |||
| 2078 | while ($this->match($operators, $m, false) && static::$precedence[$m[1]] >= $minP) { |
||
| 2079 | $whiteAfter = isset($this->buffer[$this->count]) && |
||
| 2080 | ctype_space($this->buffer[$this->count]); |
||
| 2081 | $varAfter = isset($this->buffer[$this->count]) && |
||
| 2082 | $this->buffer[$this->count] === '$'; |
||
| 2083 | |||
| 2084 | $this->whitespace(); |
||
| 2085 | |||
| 2086 | $op = $m[1]; |
||
| 2087 | |||
| 2088 | // don't turn negative numbers into expressions |
||
| 2089 | if ($op === '-' && $whiteBefore && ! $whiteAfter && ! $varAfter) { |
||
| 2090 | break; |
||
| 2091 | } |
||
| 2092 | |||
| 2093 | if (! $this->value($rhs) && ! $this->expression($rhs, true, false)) { |
||
| 2094 | break; |
||
| 2095 | } |
||
| 2096 | |||
| 2097 | // peek and see if rhs belongs to next operator |
||
| 2098 | if ($this->peek($operators, $next) && static::$precedence[$next[1]] > static::$precedence[$op]) { |
||
| 2099 | $rhs = $this->expHelper($rhs, static::$precedence[$next[1]]); |
||
| 2100 | } |
||
| 2101 | |||
| 2102 | $lhs = [Type::T_EXPRESSION, $op, $lhs, $rhs, $this->inParens, $whiteBefore, $whiteAfter]; |
||
| 2103 | $ss = $this->count; |
||
| 2104 | $whiteBefore = isset($this->buffer[$this->count - 1]) && |
||
| 2105 | ctype_space($this->buffer[$this->count - 1]); |
||
| 2106 | } |
||
| 2107 | |||
| 2108 | $this->seek($ss); |
||
| 2109 | |||
| 2110 | return $lhs; |
||
| 2111 | } |
||
| 2112 | |||
| 2113 | /** |
||
| 2114 | * Parse value |
||
| 2115 | * |
||
| 2116 | * @param array $out |
||
| 2117 | * |
||
| 2118 | * @return boolean |
||
| 2119 | */ |
||
| 2120 | protected function value(&$out) |
||
| 2121 | { |
||
| 2122 | if (! isset($this->buffer[$this->count])) { |
||
| 2123 | return false; |
||
| 2124 | } |
||
| 2125 | |||
| 2126 | $s = $this->count; |
||
| 2127 | $char = $this->buffer[$this->count]; |
||
| 2128 | |||
| 2129 | if ( |
||
| 2130 | $this->literal('url(', 4) && |
||
| 2131 | $this->match('data:([a-z]+)\/([a-z0-9.+-]+);base64,', $m, false) |
||
| 2132 | ) { |
||
| 2133 | $len = strspn( |
||
| 2134 | $this->buffer, |
||
| 2135 | 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwyxz0123456789+/=', |
||
| 2136 | $this->count |
||
| 2137 | ); |
||
| 2138 | |||
| 2139 | $this->count += $len; |
||
| 2140 | |||
| 2141 | if ($this->matchChar(')')) { |
||
| 2142 | $content = substr($this->buffer, $s, $this->count - $s); |
||
| 2143 | $out = [Type::T_KEYWORD, $content]; |
||
| 2144 | |||
| 2145 | return true; |
||
| 2146 | } |
||
| 2147 | } |
||
| 2148 | |||
| 2149 | $this->seek($s); |
||
| 2150 | |||
| 2151 | if ( |
||
| 2152 | $this->literal('url(', 4, false) && |
||
| 2153 | $this->match('\s*(\/\/[^\s\)]+)\s*', $m) |
||
| 2154 | ) { |
||
| 2155 | $content = 'url(' . $m[1]; |
||
| 2156 | |||
| 2157 | if ($this->matchChar(')')) { |
||
| 2158 | $content .= ')'; |
||
| 2159 | $out = [Type::T_KEYWORD, $content]; |
||
| 2160 | |||
| 2161 | return true; |
||
| 2162 | } |
||
| 2163 | } |
||
| 2164 | |||
| 2165 | $this->seek($s); |
||
| 2166 | |||
| 2167 | // not |
||
| 2168 | if ($char === 'n' && $this->literal('not', 3, false)) { |
||
| 2169 | if ( |
||
| 2170 | $this->whitespace() && |
||
| 2171 | $this->value($inner) |
||
| 2172 | ) { |
||
| 2173 | $out = [Type::T_UNARY, 'not', $inner, $this->inParens]; |
||
| 2174 | |||
| 2175 | return true; |
||
| 2176 | } |
||
| 2177 | |||
| 2178 | $this->seek($s); |
||
| 2179 | |||
| 2180 | if ($this->parenValue($inner)) { |
||
| 2181 | $out = [Type::T_UNARY, 'not', $inner, $this->inParens]; |
||
| 2182 | |||
| 2183 | return true; |
||
| 2184 | } |
||
| 2185 | |||
| 2186 | $this->seek($s); |
||
| 2187 | } |
||
| 2188 | |||
| 2189 | // addition |
||
| 2190 | if ($char === '+') { |
||
| 2191 | $this->count++; |
||
| 2192 | |||
| 2193 | $follow_white = $this->whitespace(); |
||
| 2194 | |||
| 2195 | if ($this->value($inner)) { |
||
| 2196 | $out = [Type::T_UNARY, '+', $inner, $this->inParens]; |
||
| 2197 | |||
| 2198 | return true; |
||
| 2199 | } |
||
| 2200 | |||
| 2201 | if ($follow_white) { |
||
| 2202 | $out = [Type::T_KEYWORD, $char]; |
||
| 2203 | return true; |
||
| 2204 | } |
||
| 2205 | |||
| 2206 | $this->seek($s); |
||
| 2207 | |||
| 2208 | return false; |
||
| 2209 | } |
||
| 2210 | |||
| 2211 | // negation |
||
| 2212 | if ($char === '-') { |
||
| 2213 | if ($this->customProperty($out)) { |
||
| 2214 | return true; |
||
| 2215 | } |
||
| 2216 | |||
| 2217 | $this->count++; |
||
| 2218 | |||
| 2219 | $follow_white = $this->whitespace(); |
||
| 2220 | |||
| 2221 | if ($this->variable($inner) || $this->unit($inner) || $this->parenValue($inner)) { |
||
| 2222 | $out = [Type::T_UNARY, '-', $inner, $this->inParens]; |
||
| 2223 | |||
| 2224 | return true; |
||
| 2225 | } |
||
| 2226 | |||
| 2227 | if ( |
||
| 2228 | $this->keyword($inner) && |
||
| 2229 | ! $this->func($inner, $out) |
||
| 2230 | ) { |
||
| 2231 | $out = [Type::T_UNARY, '-', $inner, $this->inParens]; |
||
| 2232 | |||
| 2233 | return true; |
||
| 2234 | } |
||
| 2235 | |||
| 2236 | if ($follow_white) { |
||
| 2237 | $out = [Type::T_KEYWORD, $char]; |
||
| 2238 | |||
| 2239 | return true; |
||
| 2240 | } |
||
| 2241 | |||
| 2242 | $this->seek($s); |
||
| 2243 | } |
||
| 2244 | |||
| 2245 | // paren |
||
| 2246 | if ($char === '(' && $this->parenValue($out)) { |
||
| 2247 | return true; |
||
| 2248 | } |
||
| 2249 | |||
| 2250 | if ($char === '#') { |
||
| 2251 | if ($this->interpolation($out) || $this->color($out)) { |
||
| 2252 | return true; |
||
| 2253 | } |
||
| 2254 | |||
| 2255 | $this->count++; |
||
| 2256 | |||
| 2257 | if ($this->keyword($keyword)) { |
||
| 2258 | $out = [Type::T_KEYWORD, '#' . $keyword]; |
||
| 2259 | |||
| 2260 | return true; |
||
| 2261 | } |
||
| 2262 | |||
| 2263 | $this->count--; |
||
| 2264 | } |
||
| 2265 | |||
| 2266 | if ($this->matchChar('&', true)) { |
||
| 2267 | $out = [Type::T_SELF]; |
||
| 2268 | |||
| 2269 | return true; |
||
| 2270 | } |
||
| 2271 | |||
| 2272 | if ($char === '$' && $this->variable($out)) { |
||
| 2273 | return true; |
||
| 2274 | } |
||
| 2275 | |||
| 2276 | if ($char === 'p' && $this->progid($out)) { |
||
| 2277 | return true; |
||
| 2278 | } |
||
| 2279 | |||
| 2280 | if (($char === '"' || $char === "'") && $this->string($out)) { |
||
| 2281 | return true; |
||
| 2282 | } |
||
| 2283 | |||
| 2284 | if ($this->unit($out)) { |
||
| 2285 | return true; |
||
| 2286 | } |
||
| 2287 | |||
| 2288 | // unicode range with wildcards |
||
| 2289 | if ( |
||
| 2290 | $this->literal('U+', 2) && |
||
| 2291 | $this->match('([0-9A-F]+\?*)(-([0-9A-F]+))?', $m, false) |
||
| 2292 | ) { |
||
| 2293 | $out = [Type::T_KEYWORD, 'U+' . $m[0]]; |
||
| 2294 | |||
| 2295 | return true; |
||
| 2296 | } |
||
| 2297 | |||
| 2298 | if ($this->keyword($keyword, false)) { |
||
| 2299 | if ($this->func($keyword, $out)) { |
||
| 2300 | return true; |
||
| 2301 | } |
||
| 2302 | |||
| 2303 | $this->whitespace(); |
||
| 2304 | |||
| 2305 | if ($keyword === 'null') { |
||
| 2306 | $out = [Type::T_NULL]; |
||
| 2307 | } else { |
||
| 2308 | $out = [Type::T_KEYWORD, $keyword]; |
||
| 2309 | } |
||
| 2310 | |||
| 2311 | return true; |
||
| 2312 | } |
||
| 2313 | |||
| 2314 | return false; |
||
| 2315 | } |
||
| 2316 | |||
| 2317 | /** |
||
| 2318 | * Parse parenthesized value |
||
| 2319 | * |
||
| 2320 | * @param array $out |
||
| 2321 | * |
||
| 2322 | * @return boolean |
||
| 2323 | */ |
||
| 2324 | protected function parenValue(&$out) |
||
| 2325 | { |
||
| 2326 | $s = $this->count; |
||
| 2327 | |||
| 2328 | $inParens = $this->inParens; |
||
| 2329 | |||
| 2330 | if ($this->matchChar('(')) { |
||
| 2331 | if ($this->matchChar(')')) { |
||
| 2332 | $out = [Type::T_LIST, '', []]; |
||
| 2333 | |||
| 2334 | return true; |
||
| 2335 | } |
||
| 2336 | |||
| 2337 | $this->inParens = true; |
||
| 2338 | |||
| 2339 | if ( |
||
| 2340 | $this->expression($exp) && |
||
| 2341 | $this->matchChar(')') |
||
| 2342 | ) { |
||
| 2343 | $out = $exp; |
||
| 2344 | $this->inParens = $inParens; |
||
| 2345 | |||
| 2346 | return true; |
||
| 2347 | } |
||
| 2348 | } |
||
| 2349 | |||
| 2350 | $this->inParens = $inParens; |
||
| 2351 | $this->seek($s); |
||
| 2352 | |||
| 2353 | return false; |
||
| 2354 | } |
||
| 2355 | |||
| 2356 | /** |
||
| 2357 | * Parse "progid:" |
||
| 2358 | * |
||
| 2359 | * @param array $out |
||
| 2360 | * |
||
| 2361 | * @return boolean |
||
| 2362 | */ |
||
| 2363 | protected function progid(&$out) |
||
| 2364 | { |
||
| 2365 | $s = $this->count; |
||
| 2366 | |||
| 2367 | if ( |
||
| 2368 | $this->literal('progid:', 7, false) && |
||
| 2369 | $this->openString('(', $fn) && |
||
| 2370 | $this->matchChar('(') |
||
| 2371 | ) { |
||
| 2372 | $this->openString(')', $args, '('); |
||
| 2373 | |||
| 2374 | if ($this->matchChar(')')) { |
||
| 2375 | $out = [Type::T_STRING, '', [ |
||
| 2376 | 'progid:', $fn, '(', $args, ')' |
||
| 2377 | ]]; |
||
| 2378 | |||
| 2379 | return true; |
||
| 2380 | } |
||
| 2381 | } |
||
| 2382 | |||
| 2383 | $this->seek($s); |
||
| 2384 | |||
| 2385 | return false; |
||
| 2386 | } |
||
| 2387 | |||
| 2388 | /** |
||
| 2389 | * Parse function call |
||
| 2390 | * |
||
| 2391 | * @param string $name |
||
| 2392 | * @param array $func |
||
| 2393 | * |
||
| 2394 | * @return boolean |
||
| 2395 | */ |
||
| 2396 | protected function func($name, &$func) |
||
| 2441 | } |
||
| 2442 | |||
| 2443 | /** |
||
| 2444 | * Parse function call argument list |
||
| 2445 | * |
||
| 2446 | * @param array $out |
||
| 2447 | * |
||
| 2448 | * @return boolean |
||
| 2449 | */ |
||
| 2450 | protected function argumentList(&$out) |
||
| 2451 | { |
||
| 2452 | $s = $this->count; |
||
| 2453 | $this->matchChar('('); |
||
| 2454 | |||
| 2455 | $args = []; |
||
| 2456 | |||
| 2457 | while ($this->keyword($var)) { |
||
| 2458 | if ( |
||
| 2459 | $this->matchChar('=') && |
||
| 2460 | $this->expression($exp) |
||
| 2461 | ) { |
||
| 2462 | $args[] = [Type::T_STRING, '', [$var . '=']]; |
||
| 2463 | $arg = $exp; |
||
| 2464 | } else { |
||
| 2465 | break; |
||
| 2466 | } |
||
| 2467 | |||
| 2468 | $args[] = $arg; |
||
| 2469 | |||
| 2470 | if (! $this->matchChar(',')) { |
||
| 2471 | break; |
||
| 2472 | } |
||
| 2473 | |||
| 2474 | $args[] = [Type::T_STRING, '', [', ']]; |
||
| 2475 | } |
||
| 2476 | |||
| 2477 | if (! $this->matchChar(')') || ! $args) { |
||
| 2478 | $this->seek($s); |
||
| 2479 | |||
| 2480 | return false; |
||
| 2481 | } |
||
| 2482 | |||
| 2483 | $out = $args; |
||
| 2484 | |||
| 2485 | return true; |
||
| 2486 | } |
||
| 2487 | |||
| 2488 | /** |
||
| 2489 | * Parse mixin/function definition argument list |
||
| 2490 | * |
||
| 2491 | * @param array $out |
||
| 2492 | * |
||
| 2493 | * @return boolean |
||
| 2494 | */ |
||
| 2495 | protected function argumentDef(&$out) |
||
| 2496 | { |
||
| 2497 | $s = $this->count; |
||
| 2498 | $this->matchChar('('); |
||
| 2499 | |||
| 2500 | $args = []; |
||
| 2501 | |||
| 2502 | while ($this->variable($var)) { |
||
| 2503 | $arg = [$var[1], null, false]; |
||
| 2504 | |||
| 2505 | $ss = $this->count; |
||
| 2506 | |||
| 2507 | if ( |
||
| 2508 | $this->matchChar(':') && |
||
| 2509 | $this->genericList($defaultVal, 'expression', '', true) |
||
| 2510 | ) { |
||
| 2511 | $arg[1] = $defaultVal; |
||
| 2512 | } else { |
||
| 2513 | $this->seek($ss); |
||
| 2514 | } |
||
| 2515 | |||
| 2516 | $ss = $this->count; |
||
| 2517 | |||
| 2518 | if ($this->literal('...', 3)) { |
||
| 2519 | $sss = $this->count; |
||
| 2520 | |||
| 2521 | if (! $this->matchChar(')')) { |
||
| 2522 | $this->throwParseError('... has to be after the final argument'); |
||
| 2523 | } |
||
| 2524 | |||
| 2525 | $arg[2] = true; |
||
| 2526 | |||
| 2527 | $this->seek($sss); |
||
| 2528 | } else { |
||
| 2529 | $this->seek($ss); |
||
| 2530 | } |
||
| 2531 | |||
| 2532 | $args[] = $arg; |
||
| 2533 | |||
| 2534 | if (! $this->matchChar(',')) { |
||
| 2535 | break; |
||
| 2536 | } |
||
| 2537 | } |
||
| 2538 | |||
| 2539 | if (! $this->matchChar(')')) { |
||
| 2540 | $this->seek($s); |
||
| 2541 | |||
| 2542 | return false; |
||
| 2543 | } |
||
| 2544 | |||
| 2545 | $out = $args; |
||
| 2546 | |||
| 2547 | return true; |
||
| 2548 | } |
||
| 2549 | |||
| 2550 | /** |
||
| 2551 | * Parse map |
||
| 2552 | * |
||
| 2553 | * @param array $out |
||
| 2554 | * |
||
| 2555 | * @return boolean |
||
| 2556 | */ |
||
| 2557 | protected function map(&$out) |
||
| 2558 | { |
||
| 2559 | $s = $this->count; |
||
| 2560 | |||
| 2561 | if (! $this->matchChar('(')) { |
||
| 2562 | return false; |
||
| 2563 | } |
||
| 2564 | |||
| 2565 | $keys = []; |
||
| 2566 | $values = []; |
||
| 2567 | |||
| 2568 | while ( |
||
| 2569 | $this->genericList($key, 'expression', '', true) && |
||
| 2570 | $this->matchChar(':') && |
||
| 2571 | $this->genericList($value, 'expression', '', true) |
||
| 2572 | ) { |
||
| 2573 | $keys[] = $key; |
||
| 2574 | $values[] = $value; |
||
| 2575 | |||
| 2576 | if (! $this->matchChar(',')) { |
||
| 2577 | break; |
||
| 2578 | } |
||
| 2579 | } |
||
| 2580 | |||
| 2581 | if (! $keys || ! $this->matchChar(')')) { |
||
| 2582 | $this->seek($s); |
||
| 2583 | |||
| 2584 | return false; |
||
| 2585 | } |
||
| 2586 | |||
| 2587 | $out = [Type::T_MAP, $keys, $values]; |
||
| 2588 | |||
| 2589 | return true; |
||
| 2590 | } |
||
| 2591 | |||
| 2592 | /** |
||
| 2593 | * Parse color |
||
| 2594 | * |
||
| 2595 | * @param array $out |
||
| 2596 | * |
||
| 2597 | * @return boolean |
||
| 2598 | */ |
||
| 2599 | protected function color(&$out) |
||
| 2600 | { |
||
| 2601 | $s = $this->count; |
||
| 2602 | |||
| 2603 | if ($this->match('(#([0-9a-f]+)\b)', $m)) { |
||
| 2604 | if (\in_array(\strlen($m[2]), [3,4,6,8])) { |
||
| 2605 | $out = [Type::T_KEYWORD, $m[0]]; |
||
| 2606 | |||
| 2607 | return true; |
||
| 2608 | } |
||
| 2609 | |||
| 2610 | $this->seek($s); |
||
| 2611 | |||
| 2612 | return false; |
||
| 2613 | } |
||
| 2614 | |||
| 2615 | return false; |
||
| 2616 | } |
||
| 2617 | |||
| 2618 | /** |
||
| 2619 | * Parse number with unit |
||
| 2620 | * |
||
| 2621 | * @param array $unit |
||
| 2622 | * |
||
| 2623 | * @return boolean |
||
| 2624 | */ |
||
| 2625 | protected function unit(&$unit) |
||
| 2626 | { |
||
| 2627 | $s = $this->count; |
||
| 2628 | |||
| 2629 | if ($this->match('([0-9]*(\.)?[0-9]+)([%a-zA-Z]+)?', $m, false)) { |
||
| 2630 | if (\strlen($this->buffer) === $this->count || ! ctype_digit($this->buffer[$this->count])) { |
||
| 2631 | $this->whitespace(); |
||
| 2632 | |||
| 2633 | $unit = new Node\Number($m[1], empty($m[3]) ? '' : $m[3]); |
||
| 2634 | |||
| 2635 | return true; |
||
| 2636 | } |
||
| 2637 | |||
| 2638 | $this->seek($s); |
||
| 2639 | } |
||
| 2640 | |||
| 2641 | return false; |
||
| 2642 | } |
||
| 2643 | |||
| 2644 | /** |
||
| 2645 | * Parse string |
||
| 2646 | * |
||
| 2647 | * @param array $out |
||
| 2648 | * |
||
| 2649 | * @return boolean |
||
| 2650 | */ |
||
| 2651 | protected function string(&$out) |
||
| 2652 | { |
||
| 2653 | $s = $this->count; |
||
| 2654 | |||
| 2655 | if ($this->matchChar('"', false)) { |
||
| 2656 | $delim = '"'; |
||
| 2657 | } elseif ($this->matchChar("'", false)) { |
||
| 2658 | $delim = "'"; |
||
| 2659 | } else { |
||
| 2660 | return false; |
||
| 2661 | } |
||
| 2662 | |||
| 2663 | $content = []; |
||
| 2664 | $oldWhite = $this->eatWhiteDefault; |
||
| 2665 | $this->eatWhiteDefault = false; |
||
| 2666 | $hasInterpolation = false; |
||
| 2667 | |||
| 2668 | while ($this->matchString($m, $delim)) { |
||
| 2669 | if ($m[1] !== '') { |
||
| 2670 | $content[] = $m[1]; |
||
| 2671 | } |
||
| 2672 | |||
| 2673 | if ($m[2] === '#{') { |
||
| 2674 | $this->count -= \strlen($m[2]); |
||
| 2675 | |||
| 2676 | if ($this->interpolation($inter, false)) { |
||
| 2677 | $content[] = $inter; |
||
| 2678 | $hasInterpolation = true; |
||
| 2679 | } else { |
||
| 2680 | $this->count += \strlen($m[2]); |
||
| 2681 | $content[] = '#{'; // ignore it |
||
| 2682 | } |
||
| 2683 | } elseif ($m[2] === "\r") { |
||
| 2684 | $content[] = '\\a'; |
||
| 2685 | // TODO : warning |
||
| 2686 | # DEPRECATION WARNING on line x, column y of zzz: |
||
| 2687 | # Unescaped multiline strings are deprecated and will be removed in a future version of Sass. |
||
| 2688 | # To include a newline in a string, use "\a" or "\a " as in CSS. |
||
| 2689 | if ($this->matchChar("\n", false)) { |
||
| 2690 | $content[] = ' '; |
||
| 2691 | } |
||
| 2692 | } elseif ($m[2] === '\\') { |
||
| 2693 | if ( |
||
| 2694 | $this->literal("\r\n", 2, false) || |
||
| 2695 | $this->matchChar("\r", false) || |
||
| 2696 | $this->matchChar("\n", false) || |
||
| 2697 | $this->matchChar("\f", false) |
||
| 2698 | ) { |
||
| 2699 | // this is a continuation escaping, to be ignored |
||
| 2700 | } elseif ($this->matchEscapeCharacter($c)) { |
||
| 2701 | $content[] = $c; |
||
| 2702 | } else { |
||
| 2703 | $this->throwParseError('Unterminated escape sequence'); |
||
| 2704 | } |
||
| 2705 | } else { |
||
| 2706 | $this->count -= \strlen($delim); |
||
| 2707 | break; // delim |
||
| 2708 | } |
||
| 2709 | } |
||
| 2710 | |||
| 2711 | $this->eatWhiteDefault = $oldWhite; |
||
| 2712 | |||
| 2713 | if ($this->literal($delim, \strlen($delim))) { |
||
| 2714 | if ($hasInterpolation) { |
||
| 2715 | $delim = '"'; |
||
| 2716 | } |
||
| 2717 | |||
| 2718 | $out = [Type::T_STRING, $delim, $content]; |
||
| 2719 | |||
| 2720 | return true; |
||
| 2721 | } |
||
| 2722 | |||
| 2723 | $this->seek($s); |
||
| 2724 | |||
| 2725 | return false; |
||
| 2726 | } |
||
| 2727 | |||
| 2728 | protected function matchEscapeCharacter(&$out) |
||
| 2729 | { |
||
| 2730 | if ($this->match('[a-f0-9]', $m, false)) { |
||
| 2731 | $hex = $m[0]; |
||
| 2732 | |||
| 2733 | for ($i = 5; $i--;) { |
||
| 2734 | if ($this->match('[a-f0-9]', $m, false)) { |
||
| 2735 | $hex .= $m[0]; |
||
| 2736 | } else { |
||
| 2737 | break; |
||
| 2738 | } |
||
| 2739 | } |
||
| 2740 | |||
| 2741 | $value = hexdec($hex); |
||
| 2742 | |||
| 2743 | if ($value == 0 || ($value >= 0xD800 && $value <= 0xDFFF) || $value >= 0x10FFFF) { |
||
| 2744 | $out = "\u{FFFD}"; |
||
| 2745 | } else { |
||
| 2746 | $out = Util::mbChr($value); |
||
| 2747 | } |
||
| 2748 | |||
| 2749 | return true; |
||
| 2750 | } |
||
| 2751 | |||
| 2752 | if ($this->match('.', $m, false)) { |
||
| 2753 | $out = $m[0]; |
||
| 2754 | |||
| 2755 | return true; |
||
| 2756 | } |
||
| 2757 | |||
| 2758 | return false; |
||
| 2759 | } |
||
| 2760 | |||
| 2761 | /** |
||
| 2762 | * Parse keyword or interpolation |
||
| 2763 | * |
||
| 2764 | * @param array $out |
||
| 2765 | * @param boolean $restricted |
||
| 2766 | * |
||
| 2767 | * @return boolean |
||
| 2768 | */ |
||
| 2769 | protected function mixedKeyword(&$out, $restricted = false) |
||
| 2803 | } |
||
| 2804 | |||
| 2805 | /** |
||
| 2806 | * Parse an unbounded string stopped by $end |
||
| 2807 | * |
||
| 2808 | * @param string $end |
||
| 2809 | * @param array $out |
||
| 2810 | * @param string $nestingOpen |
||
| 2811 | * @param string $nestingClose |
||
| 2812 | * @param boolean $trimEnd |
||
| 2813 | * |
||
| 2814 | * @return boolean |
||
| 2815 | */ |
||
| 2816 | protected function openString($end, &$out, $nestingOpen = null, $nestingClose = null, $trimEnd = true) |
||
| 2817 | { |
||
| 2818 | $oldWhite = $this->eatWhiteDefault; |
||
| 2819 | $this->eatWhiteDefault = false; |
||
| 2820 | |||
| 2821 | if ($nestingOpen && ! $nestingClose) { |
||
| 2822 | $nestingClose = $end; |
||
| 2823 | } |
||
| 2824 | |||
| 2825 | $patt = '(.*?)([\'"]|#\{|' |
||
| 2826 | . $this->pregQuote($end) . '|' |
||
| 2827 | . (($nestingClose && $nestingClose !== $end) ? $this->pregQuote($nestingClose) . '|' : '') |
||
| 2828 | . static::$commentPattern . ')'; |
||
| 2829 | |||
| 2830 | $nestingLevel = 0; |
||
| 2831 | |||
| 2832 | $content = []; |
||
| 2833 | |||
| 2834 | while ($this->match($patt, $m, false)) { |
||
| 2835 | if (isset($m[1]) && $m[1] !== '') { |
||
| 2836 | $content[] = $m[1]; |
||
| 2837 | |||
| 2838 | if ($nestingOpen) { |
||
| 2839 | $nestingLevel += substr_count($m[1], $nestingOpen); |
||
| 2840 | } |
||
| 2841 | } |
||
| 2842 | |||
| 2843 | $tok = $m[2]; |
||
| 2844 | |||
| 2845 | $this->count -= \strlen($tok); |
||
| 2846 | |||
| 2847 | if ($tok === $end && ! $nestingLevel) { |
||
| 2848 | break; |
||
| 2849 | } |
||
| 2850 | |||
| 2851 | if ($tok === $nestingClose) { |
||
| 2852 | $nestingLevel--; |
||
| 2853 | } |
||
| 2854 | |||
| 2855 | if (($tok === "'" || $tok === '"') && $this->string($str)) { |
||
| 2856 | $content[] = $str; |
||
| 2857 | continue; |
||
| 2858 | } |
||
| 2859 | |||
| 2860 | if ($tok === '#{' && $this->interpolation($inter)) { |
||
| 2861 | $content[] = $inter; |
||
| 2862 | continue; |
||
| 2863 | } |
||
| 2864 | |||
| 2865 | $content[] = $tok; |
||
| 2866 | $this->count += \strlen($tok); |
||
| 2867 | } |
||
| 2868 | |||
| 2869 | $this->eatWhiteDefault = $oldWhite; |
||
| 2870 | |||
| 2871 | if (! $content || $tok !== $end) { |
||
| 2872 | return false; |
||
| 2873 | } |
||
| 2874 | |||
| 2875 | // trim the end |
||
| 2876 | if ($trimEnd && \is_string(end($content))) { |
||
| 2877 | $content[\count($content) - 1] = rtrim(end($content)); |
||
| 2878 | } |
||
| 2879 | |||
| 2880 | $out = [Type::T_STRING, '', $content]; |
||
| 2881 | |||
| 2882 | return true; |
||
| 2883 | } |
||
| 2884 | |||
| 2885 | /** |
||
| 2886 | * Parser interpolation |
||
| 2887 | * |
||
| 2888 | * @param string|array $out |
||
| 2889 | * @param boolean $lookWhite save information about whitespace before and after |
||
| 2890 | * |
||
| 2891 | * @return boolean |
||
| 2892 | */ |
||
| 2893 | protected function interpolation(&$out, $lookWhite = true) |
||
| 2894 | { |
||
| 2895 | $oldWhite = $this->eatWhiteDefault; |
||
| 2896 | $allowVars = $this->allowVars; |
||
| 2897 | $this->allowVars = true; |
||
| 2898 | $this->eatWhiteDefault = true; |
||
| 2899 | |||
| 2900 | $s = $this->count; |
||
| 2901 | |||
| 2902 | if ( |
||
| 2903 | $this->literal('#{', 2) && |
||
| 2904 | $this->valueList($value) && |
||
| 2905 | $this->matchChar('}', false) |
||
| 2906 | ) { |
||
| 2907 | if ($value === [Type::T_SELF]) { |
||
| 2908 | $out = $value; |
||
| 2909 | } else { |
||
| 2910 | if ($lookWhite) { |
||
| 2911 | $left = ($s > 0 && preg_match('/\s/', $this->buffer[$s - 1])) ? ' ' : ''; |
||
| 2912 | $right = preg_match('/\s/', $this->buffer[$this->count]) ? ' ' : ''; |
||
| 2913 | } else { |
||
| 2914 | $left = $right = false; |
||
| 2915 | } |
||
| 2916 | |||
| 2917 | $out = [Type::T_INTERPOLATE, $value, $left, $right]; |
||
| 2918 | } |
||
| 2919 | |||
| 2920 | $this->eatWhiteDefault = $oldWhite; |
||
| 2921 | $this->allowVars = $allowVars; |
||
| 2922 | |||
| 2923 | if ($this->eatWhiteDefault) { |
||
| 2924 | $this->whitespace(); |
||
| 2925 | } |
||
| 2926 | |||
| 2927 | return true; |
||
| 2928 | } |
||
| 2929 | |||
| 2930 | $this->seek($s); |
||
| 2931 | |||
| 2932 | $this->eatWhiteDefault = $oldWhite; |
||
| 2933 | $this->allowVars = $allowVars; |
||
| 2934 | |||
| 2935 | return false; |
||
| 2936 | } |
||
| 2937 | |||
| 2938 | /** |
||
| 2939 | * Parse property name (as an array of parts or a string) |
||
| 2940 | * |
||
| 2941 | * @param array $out |
||
| 2942 | * |
||
| 2943 | * @return boolean |
||
| 2944 | */ |
||
| 2945 | protected function propertyName(&$out) |
||
| 2946 | { |
||
| 2947 | $parts = []; |
||
| 2948 | |||
| 2949 | $oldWhite = $this->eatWhiteDefault; |
||
| 2950 | $this->eatWhiteDefault = false; |
||
| 2951 | |||
| 2952 | for (;;) { |
||
| 2953 | if ($this->interpolation($inter)) { |
||
| 2954 | $parts[] = $inter; |
||
| 2955 | continue; |
||
| 2956 | } |
||
| 2957 | |||
| 2958 | if ($this->keyword($text)) { |
||
| 2959 | $parts[] = $text; |
||
| 2960 | continue; |
||
| 2961 | } |
||
| 2962 | |||
| 2963 | if (! $parts && $this->match('[:.#]', $m, false)) { |
||
| 2964 | // css hacks |
||
| 2965 | $parts[] = $m[0]; |
||
| 2966 | continue; |
||
| 2967 | } |
||
| 2968 | |||
| 2969 | break; |
||
| 2970 | } |
||
| 2971 | |||
| 2972 | $this->eatWhiteDefault = $oldWhite; |
||
| 2973 | |||
| 2974 | if (! $parts) { |
||
| 2975 | return false; |
||
| 2976 | } |
||
| 2977 | |||
| 2978 | // match comment hack |
||
| 2979 | if (preg_match(static::$whitePattern, $this->buffer, $m, null, $this->count)) { |
||
| 2980 | if (! empty($m[0])) { |
||
| 2981 | $parts[] = $m[0]; |
||
| 2982 | $this->count += \strlen($m[0]); |
||
| 2983 | } |
||
| 2984 | } |
||
| 2985 | |||
| 2986 | $this->whitespace(); // get any extra whitespace |
||
| 2987 | |||
| 2988 | $out = [Type::T_STRING, '', $parts]; |
||
| 2989 | |||
| 2990 | return true; |
||
| 2991 | } |
||
| 2992 | |||
| 2993 | /** |
||
| 2994 | * Parse custom property name (as an array of parts or a string) |
||
| 2995 | * |
||
| 2996 | * @param array $out |
||
| 2997 | * |
||
| 2998 | * @return boolean |
||
| 2999 | */ |
||
| 3000 | protected function customProperty(&$out) |
||
| 3001 | { |
||
| 3002 | $s = $this->count; |
||
| 3003 | |||
| 3004 | if (! $this->literal('--', 2, false)) { |
||
| 3005 | return false; |
||
| 3006 | } |
||
| 3007 | |||
| 3008 | $parts = ['--']; |
||
| 3009 | |||
| 3010 | $oldWhite = $this->eatWhiteDefault; |
||
| 3011 | $this->eatWhiteDefault = false; |
||
| 3012 | |||
| 3013 | for (;;) { |
||
| 3014 | if ($this->interpolation($inter)) { |
||
| 3015 | $parts[] = $inter; |
||
| 3016 | continue; |
||
| 3017 | } |
||
| 3018 | |||
| 3019 | if ($this->matchChar('&', false)) { |
||
| 3020 | $parts[] = [Type::T_SELF]; |
||
| 3021 | continue; |
||
| 3022 | } |
||
| 3023 | |||
| 3024 | if ($this->variable($var)) { |
||
| 3025 | $parts[] = $var; |
||
| 3026 | continue; |
||
| 3027 | } |
||
| 3028 | |||
| 3029 | if ($this->keyword($text)) { |
||
| 3030 | $parts[] = $text; |
||
| 3031 | continue; |
||
| 3032 | } |
||
| 3033 | |||
| 3034 | break; |
||
| 3035 | } |
||
| 3036 | |||
| 3037 | $this->eatWhiteDefault = $oldWhite; |
||
| 3038 | |||
| 3039 | if (\count($parts) == 1) { |
||
| 3040 | $this->seek($s); |
||
| 3041 | |||
| 3042 | return false; |
||
| 3043 | } |
||
| 3044 | |||
| 3045 | $this->whitespace(); // get any extra whitespace |
||
| 3046 | |||
| 3047 | $out = [Type::T_STRING, '', $parts]; |
||
| 3048 | |||
| 3049 | return true; |
||
| 3050 | } |
||
| 3051 | |||
| 3052 | /** |
||
| 3053 | * Parse comma separated selector list |
||
| 3054 | * |
||
| 3055 | * @param array $out |
||
| 3056 | * @param boolean $subSelector |
||
| 3057 | * |
||
| 3058 | * @return boolean |
||
| 3059 | */ |
||
| 3060 | protected function selectors(&$out, $subSelector = false) |
||
| 3061 | { |
||
| 3062 | $s = $this->count; |
||
| 3063 | $selectors = []; |
||
| 3064 | |||
| 3065 | while ($this->selector($sel, $subSelector)) { |
||
| 3066 | $selectors[] = $sel; |
||
| 3067 | |||
| 3068 | if (! $this->matchChar(',', true)) { |
||
| 3069 | break; |
||
| 3070 | } |
||
| 3071 | |||
| 3072 | while ($this->matchChar(',', true)) { |
||
| 3073 | ; // ignore extra |
||
| 3074 | } |
||
| 3075 | } |
||
| 3076 | |||
| 3077 | if (! $selectors) { |
||
| 3078 | $this->seek($s); |
||
| 3079 | |||
| 3080 | return false; |
||
| 3081 | } |
||
| 3082 | |||
| 3083 | $out = $selectors; |
||
| 3084 | |||
| 3085 | return true; |
||
| 3086 | } |
||
| 3087 | |||
| 3088 | /** |
||
| 3089 | * Parse whitespace separated selector list |
||
| 3090 | * |
||
| 3091 | * @param array $out |
||
| 3092 | * @param boolean $subSelector |
||
| 3093 | * |
||
| 3094 | * @return boolean |
||
| 3095 | */ |
||
| 3096 | protected function selector(&$out, $subSelector = false) |
||
| 3097 | { |
||
| 3098 | $selector = []; |
||
| 3099 | |||
| 3100 | for (;;) { |
||
| 3101 | $s = $this->count; |
||
| 3102 | |||
| 3103 | if ($this->match('[>+~]+', $m, true)) { |
||
| 3104 | if ( |
||
| 3105 | $subSelector && \is_string($subSelector) && strpos($subSelector, 'nth-') === 0 && |
||
| 3106 | $m[0] === '+' && $this->match("(\d+|n\b)", $counter) |
||
| 3107 | ) { |
||
| 3108 | $this->seek($s); |
||
| 3109 | } else { |
||
| 3110 | $selector[] = [$m[0]]; |
||
| 3111 | continue; |
||
| 3112 | } |
||
| 3113 | } |
||
| 3114 | |||
| 3115 | if ($this->selectorSingle($part, $subSelector)) { |
||
| 3116 | $selector[] = $part; |
||
| 3117 | $this->match('\s+', $m); |
||
| 3118 | continue; |
||
| 3119 | } |
||
| 3120 | |||
| 3121 | if ($this->match('\/[^\/]+\/', $m, true)) { |
||
| 3122 | $selector[] = [$m[0]]; |
||
| 3123 | continue; |
||
| 3124 | } |
||
| 3125 | |||
| 3126 | break; |
||
| 3127 | } |
||
| 3128 | |||
| 3129 | if (! $selector) { |
||
| 3130 | return false; |
||
| 3131 | } |
||
| 3132 | |||
| 3133 | $out = $selector; |
||
| 3134 | |||
| 3135 | return true; |
||
| 3136 | } |
||
| 3137 | |||
| 3138 | /** |
||
| 3139 | * Parse the parts that make up a selector |
||
| 3140 | * |
||
| 3141 | * {@internal |
||
| 3142 | * div[yes=no]#something.hello.world:nth-child(-2n+1)%placeholder |
||
| 3143 | * }} |
||
| 3144 | * |
||
| 3145 | * @param array $out |
||
| 3146 | * @param boolean $subSelector |
||
| 3147 | * |
||
| 3148 | * @return boolean |
||
| 3149 | */ |
||
| 3150 | protected function selectorSingle(&$out, $subSelector = false) |
||
| 3151 | { |
||
| 3152 | $oldWhite = $this->eatWhiteDefault; |
||
| 3153 | $this->eatWhiteDefault = false; |
||
| 3154 | |||
| 3155 | $parts = []; |
||
| 3156 | |||
| 3157 | if ($this->matchChar('*', false)) { |
||
| 3158 | $parts[] = '*'; |
||
| 3159 | } |
||
| 3160 | |||
| 3161 | for (;;) { |
||
| 3162 | if (! isset($this->buffer[$this->count])) { |
||
| 3163 | break; |
||
| 3164 | } |
||
| 3165 | |||
| 3166 | $s = $this->count; |
||
| 3167 | $char = $this->buffer[$this->count]; |
||
| 3168 | |||
| 3169 | // see if we can stop early |
||
| 3170 | if ($char === '{' || $char === ',' || $char === ';' || $char === '}' || $char === '@') { |
||
| 3171 | break; |
||
| 3172 | } |
||
| 3173 | |||
| 3174 | // parsing a sub selector in () stop with the closing ) |
||
| 3175 | if ($subSelector && $char === ')') { |
||
| 3176 | break; |
||
| 3177 | } |
||
| 3178 | |||
| 3179 | //self |
||
| 3180 | switch ($char) { |
||
| 3181 | case '&': |
||
| 3182 | $parts[] = Compiler::$selfSelector; |
||
| 3183 | $this->count++; |
||
| 3184 | continue 2; |
||
| 3185 | |||
| 3186 | case '.': |
||
| 3187 | $parts[] = '.'; |
||
| 3188 | $this->count++; |
||
| 3189 | continue 2; |
||
| 3190 | |||
| 3191 | case '|': |
||
| 3192 | $parts[] = '|'; |
||
| 3193 | $this->count++; |
||
| 3194 | continue 2; |
||
| 3195 | } |
||
| 3196 | |||
| 3197 | if ($char === '\\' && $this->match('\\\\\S', $m)) { |
||
| 3198 | $parts[] = $m[0]; |
||
| 3199 | continue; |
||
| 3200 | } |
||
| 3201 | |||
| 3202 | if ($char === '%') { |
||
| 3203 | $this->count++; |
||
| 3204 | |||
| 3205 | if ($this->placeholder($placeholder)) { |
||
| 3206 | $parts[] = '%'; |
||
| 3207 | $parts[] = $placeholder; |
||
| 3208 | continue; |
||
| 3209 | } |
||
| 3210 | |||
| 3211 | break; |
||
| 3212 | } |
||
| 3213 | |||
| 3214 | if ($char === '#') { |
||
| 3215 | if ($this->interpolation($inter)) { |
||
| 3216 | $parts[] = $inter; |
||
| 3217 | continue; |
||
| 3218 | } |
||
| 3219 | |||
| 3220 | $parts[] = '#'; |
||
| 3221 | $this->count++; |
||
| 3222 | continue; |
||
| 3223 | } |
||
| 3224 | |||
| 3225 | // a pseudo selector |
||
| 3226 | if ($char === ':') { |
||
| 3227 | if ($this->buffer[$this->count + 1] === ':') { |
||
| 3228 | $this->count += 2; |
||
| 3229 | $part = '::'; |
||
| 3230 | } else { |
||
| 3231 | $this->count++; |
||
| 3232 | $part = ':'; |
||
| 3233 | } |
||
| 3234 | |||
| 3235 | if ($this->mixedKeyword($nameParts, true)) { |
||
| 3236 | $parts[] = $part; |
||
| 3237 | |||
| 3238 | foreach ($nameParts as $sub) { |
||
| 3239 | $parts[] = $sub; |
||
| 3240 | } |
||
| 3241 | |||
| 3242 | $ss = $this->count; |
||
| 3243 | |||
| 3244 | if ( |
||
| 3245 | $nameParts === ['not'] || |
||
| 3246 | $nameParts === ['is'] || |
||
| 3247 | $nameParts === ['has'] || |
||
| 3248 | $nameParts === ['where'] || |
||
| 3249 | $nameParts === ['slotted'] || |
||
| 3250 | $nameParts === ['nth-child'] || |
||
| 3251 | $nameParts === ['nth-last-child'] || |
||
| 3252 | $nameParts === ['nth-of-type'] || |
||
| 3253 | $nameParts === ['nth-last-of-type'] |
||
| 3254 | ) { |
||
| 3255 | if ( |
||
| 3256 | $this->matchChar('(', true) && |
||
| 3257 | ($this->selectors($subs, reset($nameParts)) || true) && |
||
| 3258 | $this->matchChar(')') |
||
| 3259 | ) { |
||
| 3260 | $parts[] = '('; |
||
| 3261 | |||
| 3262 | while ($sub = array_shift($subs)) { |
||
| 3263 | while ($ps = array_shift($sub)) { |
||
| 3264 | foreach ($ps as &$p) { |
||
| 3265 | $parts[] = $p; |
||
| 3266 | } |
||
| 3267 | |||
| 3268 | if (\count($sub) && reset($sub)) { |
||
| 3269 | $parts[] = ' '; |
||
| 3270 | } |
||
| 3271 | } |
||
| 3272 | |||
| 3273 | if (\count($subs) && reset($subs)) { |
||
| 3274 | $parts[] = ', '; |
||
| 3275 | } |
||
| 3276 | } |
||
| 3277 | |||
| 3278 | $parts[] = ')'; |
||
| 3279 | } else { |
||
| 3280 | $this->seek($ss); |
||
| 3281 | } |
||
| 3282 | } elseif ( |
||
| 3283 | $this->matchChar('(') && |
||
| 3284 | ($this->openString(')', $str, '(') || true) && |
||
| 3285 | $this->matchChar(')') |
||
| 3286 | ) { |
||
| 3287 | $parts[] = '('; |
||
| 3288 | |||
| 3289 | if (! empty($str)) { |
||
| 3290 | $parts[] = $str; |
||
| 3291 | } |
||
| 3292 | |||
| 3293 | $parts[] = ')'; |
||
| 3294 | } else { |
||
| 3295 | $this->seek($ss); |
||
| 3296 | } |
||
| 3297 | |||
| 3298 | continue; |
||
| 3299 | } |
||
| 3300 | } |
||
| 3301 | |||
| 3302 | $this->seek($s); |
||
| 3303 | |||
| 3304 | // 2n+1 |
||
| 3305 | if ($subSelector && \is_string($subSelector) && strpos($subSelector, 'nth-') === 0) { |
||
| 3306 | if ($this->match("(\s*(\+\s*|\-\s*)?(\d+|n|\d+n))+", $counter)) { |
||
| 3307 | $parts[] = $counter[0]; |
||
| 3308 | //$parts[] = str_replace(' ', '', $counter[0]); |
||
| 3309 | continue; |
||
| 3310 | } |
||
| 3311 | } |
||
| 3312 | |||
| 3313 | $this->seek($s); |
||
| 3314 | |||
| 3315 | // attribute selector |
||
| 3316 | if ( |
||
| 3317 | $char === '[' && |
||
| 3318 | $this->matchChar('[') && |
||
| 3319 | ($this->openString(']', $str, '[') || true) && |
||
| 3320 | $this->matchChar(']') |
||
| 3321 | ) { |
||
| 3322 | $parts[] = '['; |
||
| 3323 | |||
| 3324 | if (! empty($str)) { |
||
| 3325 | $parts[] = $str; |
||
| 3326 | } |
||
| 3327 | |||
| 3328 | $parts[] = ']'; |
||
| 3329 | continue; |
||
| 3330 | } |
||
| 3331 | |||
| 3332 | $this->seek($s); |
||
| 3333 | |||
| 3334 | // for keyframes |
||
| 3335 | if ($this->unit($unit)) { |
||
| 3336 | $parts[] = $unit; |
||
| 3337 | continue; |
||
| 3338 | } |
||
| 3339 | |||
| 3340 | if ($this->restrictedKeyword($name)) { |
||
| 3341 | $parts[] = $name; |
||
| 3342 | continue; |
||
| 3343 | } |
||
| 3344 | |||
| 3345 | break; |
||
| 3346 | } |
||
| 3347 | |||
| 3348 | $this->eatWhiteDefault = $oldWhite; |
||
| 3349 | |||
| 3350 | if (! $parts) { |
||
| 3351 | return false; |
||
| 3352 | } |
||
| 3353 | |||
| 3354 | $out = $parts; |
||
| 3355 | |||
| 3356 | return true; |
||
| 3357 | } |
||
| 3358 | |||
| 3359 | /** |
||
| 3360 | * Parse a variable |
||
| 3361 | * |
||
| 3362 | * @param array $out |
||
| 3363 | * |
||
| 3364 | * @return boolean |
||
| 3365 | */ |
||
| 3366 | protected function variable(&$out) |
||
| 3367 | { |
||
| 3368 | $s = $this->count; |
||
| 3369 | |||
| 3370 | if ( |
||
| 3371 | $this->matchChar('$', false) && |
||
| 3372 | $this->keyword($name) |
||
| 3373 | ) { |
||
| 3374 | if ($this->allowVars) { |
||
| 3375 | $out = [Type::T_VARIABLE, $name]; |
||
| 3376 | } else { |
||
| 3377 | $out = [Type::T_KEYWORD, '$' . $name]; |
||
| 3378 | } |
||
| 3379 | |||
| 3380 | return true; |
||
| 3381 | } |
||
| 3382 | |||
| 3383 | $this->seek($s); |
||
| 3384 | |||
| 3385 | return false; |
||
| 3386 | } |
||
| 3387 | |||
| 3388 | /** |
||
| 3389 | * Parse a keyword |
||
| 3390 | * |
||
| 3391 | * @param string $word |
||
| 3392 | * @param boolean $eatWhitespace |
||
| 3393 | * |
||
| 3394 | * @return boolean |
||
| 3395 | */ |
||
| 3396 | protected function keyword(&$word, $eatWhitespace = null) |
||
| 3397 | { |
||
| 3398 | $match = $this->match( |
||
| 3399 | $this->utf8 |
||
| 3400 | ? '(([\pL\w\x{00A0}-\x{10FFFF}_\-\*!"\']|[\\\\].)([\pL\w\x{00A0}-\x{10FFFF}\-_"\']|[\\\\].)*)' |
||
| 3401 | : '(([\w_\-\*!"\']|[\\\\].)([\w\-_"\']|[\\\\].)*)', |
||
| 3402 | $m, |
||
| 3403 | $eatWhitespace |
||
| 3404 | ); |
||
| 3405 | |||
| 3406 | if ($match) { |
||
| 3407 | $word = $m[1]; |
||
| 3408 | |||
| 3409 | return true; |
||
| 3410 | } |
||
| 3411 | |||
| 3412 | return false; |
||
| 3413 | } |
||
| 3414 | |||
| 3415 | /** |
||
| 3416 | * Parse a keyword that should not start with a number |
||
| 3417 | * |
||
| 3418 | * @param string $word |
||
| 3419 | * @param boolean $eatWhitespace |
||
| 3420 | * |
||
| 3421 | * @return boolean |
||
| 3422 | */ |
||
| 3423 | protected function restrictedKeyword(&$word, $eatWhitespace = null) |
||
| 3434 | } |
||
| 3435 | |||
| 3436 | /** |
||
| 3437 | * Parse a placeholder |
||
| 3438 | * |
||
| 3439 | * @param string|array $placeholder |
||
| 3440 | * |
||
| 3441 | * @return boolean |
||
| 3442 | */ |
||
| 3443 | protected function placeholder(&$placeholder) |
||
| 3444 | { |
||
| 3445 | $match = $this->match( |
||
| 3446 | $this->utf8 |
||
| 3447 | ? '([\pL\w\-_]+)' |
||
| 3448 | : '([\w\-_]+)', |
||
| 3449 | $m |
||
| 3450 | ); |
||
| 3451 | |||
| 3452 | if ($match) { |
||
| 3453 | $placeholder = $m[1]; |
||
| 3454 | |||
| 3455 | return true; |
||
| 3456 | } |
||
| 3457 | |||
| 3458 | if ($this->interpolation($placeholder)) { |
||
| 3459 | return true; |
||
| 3460 | } |
||
| 3461 | |||
| 3462 | return false; |
||
| 3463 | } |
||
| 3464 | |||
| 3465 | /** |
||
| 3466 | * Parse a url |
||
| 3467 | * |
||
| 3468 | * @param array $out |
||
| 3469 | * |
||
| 3470 | * @return boolean |
||
| 3471 | */ |
||
| 3472 | protected function url(&$out) |
||
| 3473 | { |
||
| 3474 | //if ($this->match('(url\(\s*(["\']?)([^)]+)\2\s*\))', $m)) { |
||
| 3475 | if ( |
||
| 3476 | $this->literal('url(', 4) && |
||
| 3477 | ($this->string($out) || $this->openString(')', $out)) && |
||
| 3478 | $this->matchChar(')') |
||
| 3479 | ) { |
||
| 3480 | $out = [Type::T_STRING, '', ['url(', $out, ')']]; |
||
| 3481 | |||
| 3482 | return true; |
||
| 3483 | } |
||
| 3484 | |||
| 3485 | return false; |
||
| 3486 | } |
||
| 3487 | |||
| 3488 | /** |
||
| 3489 | * Consume an end of statement delimiter |
||
| 3490 | * |
||
| 3491 | * @return boolean |
||
| 3492 | */ |
||
| 3493 | protected function end() |
||
| 3494 | { |
||
| 3495 | if ($this->matchChar(';')) { |
||
| 3496 | return true; |
||
| 3497 | } |
||
| 3498 | |||
| 3499 | if ($this->count === \strlen($this->buffer) || $this->buffer[$this->count] === '}') { |
||
| 3500 | // if there is end of file or a closing block next then we don't need a ; |
||
| 3501 | return true; |
||
| 3502 | } |
||
| 3503 | |||
| 3504 | return false; |
||
| 3505 | } |
||
| 3506 | |||
| 3507 | /** |
||
| 3508 | * Strip assignment flag from the list |
||
| 3509 | * |
||
| 3510 | * @param array $value |
||
| 3511 | * |
||
| 3512 | * @return array |
||
| 3513 | */ |
||
| 3514 | protected function stripAssignmentFlags(&$value) |
||
| 3515 | { |
||
| 3516 | $flags = []; |
||
| 3517 | |||
| 3518 | for ($token = &$value; $token[0] === Type::T_LIST && ($s = \count($token[2])); $token = &$lastNode) { |
||
| 3519 | $lastNode = &$token[2][$s - 1]; |
||
| 3520 | |||
| 3521 | while ($lastNode[0] === Type::T_KEYWORD && \in_array($lastNode[1], ['!default', '!global'])) { |
||
| 3522 | array_pop($token[2]); |
||
| 3523 | |||
| 3524 | $node = end($token[2]); |
||
| 3525 | $token = $this->flattenList($token); |
||
| 3526 | $flags[] = $lastNode[1]; |
||
| 3527 | $lastNode = $node; |
||
| 3528 | } |
||
| 3529 | } |
||
| 3530 | |||
| 3531 | return $flags; |
||
| 3532 | } |
||
| 3533 | |||
| 3534 | /** |
||
| 3535 | * Strip optional flag from selector list |
||
| 3536 | * |
||
| 3537 | * @param array $selectors |
||
| 3538 | * |
||
| 3539 | * @return string |
||
| 3540 | */ |
||
| 3541 | protected function stripOptionalFlag(&$selectors) |
||
| 3542 | { |
||
| 3543 | $optional = false; |
||
| 3544 | $selector = end($selectors); |
||
| 3545 | $part = end($selector); |
||
| 3546 | |||
| 3547 | if ($part === ['!optional']) { |
||
| 3548 | array_pop($selectors[\count($selectors) - 1]); |
||
| 3549 | |||
| 3550 | $optional = true; |
||
| 3551 | } |
||
| 3552 | |||
| 3553 | return $optional; |
||
| 3554 | } |
||
| 3555 | |||
| 3556 | /** |
||
| 3557 | * Turn list of length 1 into value type |
||
| 3558 | * |
||
| 3559 | * @param array $value |
||
| 3560 | * |
||
| 3561 | * @return array |
||
| 3562 | */ |
||
| 3563 | protected function flattenList($value) |
||
| 3570 | } |
||
| 3571 | |||
| 3572 | /** |
||
| 3573 | * Quote regular expression |
||
| 3574 | * |
||
| 3575 | * @param string $what |
||
| 3576 | * |
||
| 3577 | * @return string |
||
| 3578 | */ |
||
| 3579 | private function pregQuote($what) |
||
| 3580 | { |
||
| 3581 | return preg_quote($what, '/'); |
||
| 3582 | } |
||
| 3583 | |||
| 3584 | /** |
||
| 3585 | * Extract line numbers from buffer |
||
| 3586 | * |
||
| 3587 | * @param string $buffer |
||
| 3588 | */ |
||
| 3589 | private function extractLineNumbers($buffer) |
||
| 3590 | { |
||
| 3591 | $this->sourcePositions = [0 => 0]; |
||
| 3592 | $prev = 0; |
||
| 3593 | |||
| 3594 | while (($pos = strpos($buffer, "\n", $prev)) !== false) { |
||
| 3595 | $this->sourcePositions[] = $pos; |
||
| 3596 | $prev = $pos + 1; |
||
| 3597 | } |
||
| 3598 | |||
| 3599 | $this->sourcePositions[] = \strlen($buffer); |
||
| 3600 | |||
| 3601 | if (substr($buffer, -1) !== "\n") { |
||
| 3602 | $this->sourcePositions[] = \strlen($buffer) + 1; |
||
| 3603 | } |
||
| 3604 | } |
||
| 3605 | |||
| 3606 | /** |
||
| 3607 | * Get source line number and column (given character position in the buffer) |
||
| 3608 | * |
||
| 3609 | * @param integer $pos |
||
| 3610 | * |
||
| 3611 | * @return array |
||
| 3612 | */ |
||
| 3613 | private function getSourcePosition($pos) |
||
| 3614 | { |
||
| 3615 | $low = 0; |
||
| 3616 | $high = \count($this->sourcePositions); |
||
| 3617 | |||
| 3618 | while ($low < $high) { |
||
| 3619 | $mid = (int) (($high + $low) / 2); |
||
| 3620 | |||
| 3621 | if ($pos < $this->sourcePositions[$mid]) { |
||
| 3622 | $high = $mid - 1; |
||
| 3623 | continue; |
||
| 3624 | } |
||
| 3625 | |||
| 3626 | if ($pos >= $this->sourcePositions[$mid + 1]) { |
||
| 3627 | $low = $mid + 1; |
||
| 3628 | continue; |
||
| 3629 | } |
||
| 3630 | |||
| 3631 | return [$mid + 1, $pos - $this->sourcePositions[$mid]]; |
||
| 3632 | } |
||
| 3633 | |||
| 3634 | return [$low + 1, $pos - $this->sourcePositions[$low]]; |
||
| 3635 | } |
||
| 3636 | |||
| 3637 | /** |
||
| 3638 | * Save internal encoding |
||
| 3639 | */ |
||
| 3640 | private function saveEncoding() |
||
| 3646 | } |
||
| 3647 | } |
||
| 3648 | |||
| 3649 | /** |
||
| 3650 | * Restore internal encoding |
||
| 3651 | */ |
||
| 3652 | private function restoreEncoding() |
||
| 3653 | { |
||
| 3654 | if (\extension_loaded('mbstring') && $this->encoding) { |
||
| 3655 | mb_internal_encoding($this->encoding); |
||
| 3656 | } |
||
| 3657 | } |
||
| 3658 | } |
||
| 3659 |
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