| 1 |
<?php |
| 2 |
/** |
| 3 |
* CSSTidy Parsing PHP Class |
| 4 |
* |
| 5 |
* @package TablePress |
| 6 |
* @subpackage CSS |
| 7 |
* @author Florian Schmitz, Brett Zamir, Nikolay Matsievsky, Cedric Morin, Christopher Finke, Mark Scherer, Tobias Bäthge |
| 8 |
* @since 1.0.0 |
| 9 |
*/ |
| 10 |
|
| 11 |
// Prohibit direct script loading. |
| 12 |
defined( 'ABSPATH' ) || die( 'No direct script access allowed!' ); |
| 13 |
|
| 14 |
/** |
| 15 |
* Load the class for printing CSS code. |
| 16 |
* |
| 17 |
* @since 1.0.0 |
| 18 |
*/ |
| 19 |
require __DIR__ . '/class.csstidy_print.php'; |
| 20 |
|
| 21 |
/** |
| 22 |
* Load the class for optimising CSS code. |
| 23 |
* |
| 24 |
* @since 1.0.0 |
| 25 |
*/ |
| 26 |
require __DIR__ . '/class.csstidy_optimise.php'; |
| 27 |
|
| 28 |
/** |
| 29 |
* CSS Parser class |
| 30 |
* |
| 31 |
* This class represents a CSS parser which reads CSS code and saves it in an array. |
| 32 |
* In opposite to most other CSS parsers, it does not use regular expressions and |
| 33 |
* thus has full CSS2 support and a higher reliability. |
| 34 |
* Additionally to that, it applies some optimizations and fixes to the CSS code. |
| 35 |
* |
| 36 |
* @package CSSTidy |
| 37 |
* @since 1.0.0 |
| 38 |
*/ |
| 39 |
class TablePress_CSSTidy { |
| 40 |
|
| 41 |
/** |
| 42 |
* Defines constants. |
| 43 |
* |
| 44 |
* @since 1.0.0 |
| 45 |
*/ |
| 46 |
const AT_START = 1; |
| 47 |
const AT_END = 2; |
| 48 |
const SEL_START = 3; |
| 49 |
const SEL_END = 4; |
| 50 |
const PROPERTY = 5; |
| 51 |
const VALUE = 6; |
| 52 |
const COMMENT = 7; |
| 53 |
const IMPORTANT_COMMENT = 8; |
| 54 |
const DEFAULT_AT = 41; |
| 55 |
|
| 56 |
/** |
| 57 |
* The parsed CSS. |
| 58 |
* |
| 59 |
* This array is empty if preserve_css is on. |
| 60 |
* |
| 61 |
* @since 1.0.0 |
| 62 |
*/ |
| 63 |
public array $css = array(); |
| 64 |
|
| 65 |
/** |
| 66 |
* The raw parsed CSS. |
| 67 |
* |
| 68 |
* @since 1.0.0 |
| 69 |
*/ |
| 70 |
public array $tokens = array(); |
| 71 |
|
| 72 |
/** |
| 73 |
* Instance of the CSS Printer class. |
| 74 |
* |
| 75 |
* @since 1.0.0 |
| 76 |
*/ |
| 77 |
public \TablePress_CSSTidy_Print $print; |
| 78 |
|
| 79 |
/** |
| 80 |
* Instance of the CSS Optimiser class. |
| 81 |
* |
| 82 |
* @since 1.0.0 |
| 83 |
*/ |
| 84 |
public \TablePress_CSSTidy_Optimise $optimise; |
| 85 |
|
| 86 |
/** |
| 87 |
* The CSS charset. |
| 88 |
* |
| 89 |
* @since 1.0.0 |
| 90 |
*/ |
| 91 |
public string $charset = ''; |
| 92 |
|
| 93 |
/** |
| 94 |
* All @import URLs. |
| 95 |
* |
| 96 |
* @since 1.0.0 |
| 97 |
*/ |
| 98 |
public array $import = array(); |
| 99 |
|
| 100 |
/** |
| 101 |
* The namespace. |
| 102 |
* |
| 103 |
* @since 1.0.0 |
| 104 |
*/ |
| 105 |
public string $namespace = ''; |
| 106 |
|
| 107 |
/** |
| 108 |
* The settings. |
| 109 |
* |
| 110 |
* @since 1.0.0 |
| 111 |
*/ |
| 112 |
protected array $settings = array(); |
| 113 |
|
| 114 |
/** |
| 115 |
* The parser-status. |
| 116 |
* |
| 117 |
* Possible values: |
| 118 |
* - is = in selector |
| 119 |
* - ip = in property |
| 120 |
* - iv = in value |
| 121 |
* - instr = in string (started at " or ' or ( ) |
| 122 |
* - ic = in comment (ignore everything) |
| 123 |
* - at = in @-block |
| 124 |
* |
| 125 |
* @since 1.0.0 |
| 126 |
*/ |
| 127 |
protected string $status = 'is'; |
| 128 |
|
| 129 |
/** |
| 130 |
* The current at rule (@media). |
| 131 |
* |
| 132 |
* @since 1.0.0 |
| 133 |
*/ |
| 134 |
public string $at = ''; |
| 135 |
|
| 136 |
/** |
| 137 |
* The at rule for next selector (during @font-face or other @). |
| 138 |
* |
| 139 |
* @since 1.0.0 |
| 140 |
* @var string|int |
| 141 |
*/ |
| 142 |
protected $next_selector_at = ''; |
| 143 |
|
| 144 |
/** |
| 145 |
* The current selector. |
| 146 |
* |
| 147 |
* @since 1.0.0 |
| 148 |
*/ |
| 149 |
public string $selector = ''; |
| 150 |
|
| 151 |
/** |
| 152 |
* The current property. |
| 153 |
* |
| 154 |
* @since 1.0.0 |
| 155 |
*/ |
| 156 |
public string $property = ''; |
| 157 |
|
| 158 |
/** |
| 159 |
* The position of , in selectors. |
| 160 |
* |
| 161 |
* @since 1.0.0 |
| 162 |
*/ |
| 163 |
protected array $sel_separate = array(); |
| 164 |
|
| 165 |
/** |
| 166 |
* The current value. |
| 167 |
* |
| 168 |
* @since 1.0.0 |
| 169 |
*/ |
| 170 |
public string $value = ''; |
| 171 |
|
| 172 |
/** |
| 173 |
* The current sub-value. |
| 174 |
* |
| 175 |
* Example for a sub-value: In the CSS rule |
| 176 |
* background: url(foo.png) red no-repeat; |
| 177 |
* "url(foo.png)", "red", and "no-repeat" are sub-values, |
| 178 |
* separated by whitespace. |
| 179 |
* |
| 180 |
* @since 1.0.0 |
| 181 |
*/ |
| 182 |
public string $sub_value = ''; |
| 183 |
|
| 184 |
/** |
| 185 |
* All sub-values for a property. |
| 186 |
* |
| 187 |
* @since 1.0.0 |
| 188 |
*/ |
| 189 |
protected array $sub_value_arr = array(); |
| 190 |
|
| 191 |
/** |
| 192 |
* The stack of characters that opened the current strings. |
| 193 |
* |
| 194 |
* @since 1.0.0 |
| 195 |
*/ |
| 196 |
public array $str_char = array(); |
| 197 |
|
| 198 |
/** |
| 199 |
* [$cur_string description] |
| 200 |
* |
| 201 |
* @since 1.0.0 |
| 202 |
*/ |
| 203 |
public array $cur_string = array(); |
| 204 |
|
| 205 |
/** |
| 206 |
* Status from which the parser switched to ic or instr |
| 207 |
* |
| 208 |
* @since 1.0.0 |
| 209 |
*/ |
| 210 |
protected array $from = array(); |
| 211 |
|
| 212 |
/** |
| 213 |
* True if in invalid at-rule. |
| 214 |
* |
| 215 |
* @since 1.0.0 |
| 216 |
*/ |
| 217 |
protected bool $invalid_at = false; |
| 218 |
|
| 219 |
/** |
| 220 |
* True if something has been added to the current selector. |
| 221 |
* |
| 222 |
* @since 1.0.0 |
| 223 |
*/ |
| 224 |
protected bool $added = false; |
| 225 |
|
| 226 |
/** |
| 227 |
* The message log. |
| 228 |
* |
| 229 |
* @since 1.0.0 |
| 230 |
*/ |
| 231 |
public array $log = array(); |
| 232 |
|
| 233 |
/** |
| 234 |
* The line number. |
| 235 |
* |
| 236 |
* @since 1.0.0 |
| 237 |
*/ |
| 238 |
protected int $line = 1; |
| 239 |
|
| 240 |
/** |
| 241 |
* Marks if we need to leave quotes for a string. |
| 242 |
* |
| 243 |
* @since 1.0.0 |
| 244 |
*/ |
| 245 |
protected array $quoted_string = array(); |
| 246 |
|
| 247 |
/** |
| 248 |
* List of tokens. |
| 249 |
* |
| 250 |
* @since 1.0.0 |
| 251 |
*/ |
| 252 |
protected string $tokens_list = ''; |
| 253 |
|
| 254 |
/** |
| 255 |
* Various CSS Data for CSSTidy. |
| 256 |
* |
| 257 |
* @since 1.0.0 |
| 258 |
*/ |
| 259 |
public array $data = array(); |
| 260 |
|
| 261 |
/** |
| 262 |
* The output templates. |
| 263 |
* |
| 264 |
* @since 1.0.0 |
| 265 |
*/ |
| 266 |
public array $template = array(); |
| 267 |
|
| 268 |
/** |
| 269 |
* Loads standard template and sets default settings. |
| 270 |
* |
| 271 |
* @since 1.0.0 |
| 272 |
*/ |
| 273 |
public function __construct() { |
| 274 |
$this->data = require __DIR__ . '/data.inc.php'; |
| 275 |
|
| 276 |
$this->settings['remove_bslash'] = true; |
| 277 |
$this->settings['compress_colors'] = true; |
| 278 |
$this->settings['compress_font-weight'] = true; |
| 279 |
$this->settings['lowercase_s'] = false; |
| 280 |
|
| 281 |
/* |
| 282 |
* 1 common shorthands optimization |
| 283 |
* 2 + font property optimization |
| 284 |
* 3 + background property optimization |
| 285 |
*/ |
| 286 |
$this->settings['optimise_shorthands'] = 1; |
| 287 |
$this->settings['remove_last_;'] = true; |
| 288 |
// Rewrite all properties with lower case, better for later gzipping. |
| 289 |
$this->settings['case_properties'] = 1; |
| 290 |
|
| 291 |
/* |
| 292 |
* Sort properties in alphabetic order, better for later gzipping, |
| 293 |
* but can cause trouble in case of overriding same properties or using hacks. |
| 294 |
*/ |
| 295 |
$this->settings['sort_properties'] = false; |
| 296 |
|
| 297 |
/* |
| 298 |
* 1, 3, 5, etc -- Enable sorting selectors inside @media: a{}b{}c{}. |
| 299 |
* 2, 5, 8, etc -- Enable sorting selectors inside one CSS declaration: a,b,c{}. |
| 300 |
* Preserve order by default cause it can break functionality. |
| 301 |
*/ |
| 302 |
$this->settings['sort_selectors'] = 0; |
| 303 |
// Is dangerous to be used: CSS is broken sometimes. |
| 304 |
$this->settings['merge_selectors'] = 0; |
| 305 |
// Whether to preserve browser hacks. |
| 306 |
$this->settings['discard_invalid_selectors'] = false; |
| 307 |
$this->settings['discard_invalid_properties'] = false; |
| 308 |
$this->settings['css_level'] = 'CSS3.0'; |
| 309 |
$this->settings['preserve_css'] = false; |
| 310 |
$this->settings['timestamp'] = false; |
| 311 |
$this->settings['template'] = ''; // say that property exists. |
| 312 |
$this->set_cfg( 'template', 'default' ); // Call load_template. |
| 313 |
|
| 314 |
$this->print = new TablePress_CSSTidy_Print( $this ); |
| 315 |
$this->optimise = new TablePress_CSSTidy_Optimise( $this ); |
| 316 |
|
| 317 |
$this->tokens_list = &$this->data['csstidy']['tokens']; |
| 318 |
} |
| 319 |
|
| 320 |
/** |
| 321 |
* Gets the value of a setting. |
| 322 |
* |
| 323 |
* @since 1.0.0 |
| 324 |
* |
| 325 |
* @param string $setting Setting to get. |
| 326 |
* @return string|int|bool Value of the setting. |
| 327 |
*/ |
| 328 |
public function get_cfg( string $setting ) /* : string|int|bool */ { |
| 329 |
if ( isset( $this->settings[ $setting ] ) ) { |
| 330 |
return $this->settings[ $setting ]; |
| 331 |
} |
| 332 |
return false; |
| 333 |
} |
| 334 |
|
| 335 |
/** |
| 336 |
* Sets the value of a setting. |
| 337 |
* |
| 338 |
* @since 1.0.0 |
| 339 |
* |
| 340 |
* @param string $setting Setting. |
| 341 |
* @param string|int|bool|null $value Optional. Value of the setting. |
| 342 |
* @return bool Whether the setting was set. |
| 343 |
*/ |
| 344 |
public function set_cfg( string $setting, $value = null ): bool { |
| 345 |
if ( isset( $this->settings[ $setting ] ) && '' !== $value ) { |
| 346 |
$this->settings[ $setting ] = $value; |
| 347 |
if ( 'template' === $setting ) { |
| 348 |
$this->load_template( $this->settings['template'] ); |
| 349 |
} |
| 350 |
return true; |
| 351 |
} |
| 352 |
return false; |
| 353 |
} |
| 354 |
|
| 355 |
/** |
| 356 |
* Adds a token to $this->tokens. |
| 357 |
* |
| 358 |
* @since 1.0.0 |
| 359 |
* |
| 360 |
* @param mixed $type Type. |
| 361 |
* @param string $data Data. |
| 362 |
* @param bool $force Optional. Add a token even if preserve_css is off. |
| 363 |
*/ |
| 364 |
public function _add_token( $type, string $data, bool $force = false ): void { |
| 365 |
if ( $this->get_cfg( 'preserve_css' ) || $force ) { |
| 366 |
// nested @...: if opening a new part we just closed, remove the previous closing instead of adding opening. |
| 367 |
if ( self::AT_START === $type |
| 368 |
&& count( $this->tokens ) |
| 369 |
&& ( $last = end( $this->tokens ) ) // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found,Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure |
| 370 |
&& self::AT_END === $last[0] |
| 371 |
&& trim( $data ) === $last[1] ) { |
| 372 |
array_pop( $this->tokens ); |
| 373 |
} else { |
| 374 |
$this->tokens[] = array( $type, ( self::COMMENT === $type || self::IMPORTANT_COMMENT === $type ) ? $data : trim( $data ) ); |
| 375 |
} |
| 376 |
} |
| 377 |
} |
| 378 |
|
| 379 |
/** |
| 380 |
* Adds a message to the message log. |
| 381 |
* |
| 382 |
* @since 1.0.0 |
| 383 |
* |
| 384 |
* @param string $message Message. |
| 385 |
* @param string $type Type. |
| 386 |
* @param int $line Optional. Line number. -1 will use the current line. |
| 387 |
*/ |
| 388 |
public function log( string $message, string $type, int $line = -1 ): void { |
| 389 |
if ( -1 === $line ) { |
| 390 |
$line = $this->line; |
| 391 |
} |
| 392 |
$line = (int) $line; |
| 393 |
$add = array( |
| 394 |
'm' => $message, |
| 395 |
't' => $type, |
| 396 |
); |
| 397 |
if ( ! isset( $this->log[ $line ] ) || ! in_array( $add, $this->log[ $line ], true ) ) { |
| 398 |
$this->log[ $line ][] = $add; |
| 399 |
} |
| 400 |
} |
| 401 |
|
| 402 |
/** |
| 403 |
* Parses Unicode notations and find a replacement character. |
| 404 |
* |
| 405 |
* @since 1.0.0 |
| 406 |
* |
| 407 |
* @param string $a_string String. |
| 408 |
* @param int $i i. |
| 409 |
* @return string [return value] |
| 410 |
*/ |
| 411 |
public function _unicode( string &$a_string, int &$i ): string { |
| 412 |
++$i; |
| 413 |
$add = ''; |
| 414 |
$replaced = false; |
| 415 |
|
| 416 |
while ( $i < strlen( $a_string ) && ( ctype_xdigit( $a_string[ $i ] ) || ctype_space( $a_string[ $i ] ) ) && strlen( $add ) < 6 ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found |
| 417 |
$add .= $a_string[ $i ]; |
| 418 |
if ( ctype_space( $a_string[ $i ] ) ) { |
| 419 |
break; |
| 420 |
} |
| 421 |
++$i; |
| 422 |
} |
| 423 |
|
| 424 |
if ( ( hexdec( $add ) > 47 && hexdec( $add ) < 58 ) || ( hexdec( $add ) > 64 && hexdec( $add ) < 91 ) || ( hexdec( $add ) > 96 && hexdec( $add ) < 123 ) ) { |
| 425 |
$this->log( 'Replaced unicode notation: Changed \\' . $add . ' to ' . chr( hexdec( $add ) ), 'Information' ); |
| 426 |
$add = chr( hexdec( $add ) ); |
| 427 |
$replaced = true; |
| 428 |
} else { |
| 429 |
$add = trim( '\\' . $add ); |
| 430 |
} |
| 431 |
|
| 432 |
if ( ( @ctype_xdigit( $a_string[ $i + 1 ] ) && ctype_space( $a_string[ $i ] ) && ! $replaced ) || ! ctype_space( $a_string[ $i ] ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 433 |
--$i; |
| 434 |
} |
| 435 |
|
| 436 |
if ( '\\' !== $add || ! $this->get_cfg( 'remove_bslash' ) || str_contains( $this->tokens_list, $a_string[ $i + 1 ] ) ) { |
| 437 |
return $add; |
| 438 |
} |
| 439 |
|
| 440 |
if ( '\\' === $add ) { |
| 441 |
$this->log( 'Removed unnecessary backslash', 'Information' ); |
| 442 |
} |
| 443 |
|
| 444 |
return ''; |
| 445 |
} |
| 446 |
|
| 447 |
/** |
| 448 |
* Loads a new template. |
| 449 |
* |
| 450 |
* @since 1.0.0 |
| 451 |
* |
| 452 |
* @link https://csstidy.sourceforge.net/templates.php |
| 453 |
* |
| 454 |
* @param string $content Either file name (if $from_file is true), content of a template file, "default", "low", high", or "highest". |
| 455 |
* @param bool $from_file Optional. Uses $content as filename if true. |
| 456 |
*/ |
| 457 |
protected function load_template( string $content, bool $from_file = true ): void { |
| 458 |
if ( in_array( $content, array( 'default', 'low', 'high', 'highest' ), true ) ) { |
| 459 |
$this->template = $this->data['csstidy']['predefined_templates'][ $content ]; |
| 460 |
return; |
| 461 |
} |
| 462 |
|
| 463 |
if ( $from_file ) { |
| 464 |
$content = strip_tags( file_get_contents( $content ), '<span>' ); |
| 465 |
} |
| 466 |
|
| 467 |
// Unify newlines (because the output also only uses \n). |
| 468 |
$content = str_replace( "\r\n", "\n", $content ); |
| 469 |
$this->template = explode( '|', $content ); |
| 470 |
} |
| 471 |
|
| 472 |
/** |
| 473 |
* Starts parsing from URL. |
| 474 |
* |
| 475 |
* @since 1.0.0 |
| 476 |
* |
| 477 |
* @param string $url URL. |
| 478 |
* @return bool Whether the CSS code could be parsed successfully. |
| 479 |
*/ |
| 480 |
protected function parse_from_url( string $url ): bool { |
| 481 |
$data = file_get_contents( $url ); |
| 482 |
if ( false === $data ) { |
| 483 |
return false; |
| 484 |
} |
| 485 |
return $this->parse( $data ); |
| 486 |
} |
| 487 |
|
| 488 |
/** |
| 489 |
* Checks if there is a token at the current position. |
| 490 |
* |
| 491 |
* @since 1.0.0 |
| 492 |
* |
| 493 |
* @param string $a_string String. |
| 494 |
* @param int $i i. |
| 495 |
* @return bool [return value] |
| 496 |
*/ |
| 497 |
protected function is_token( string &$a_string, int $i ): bool { |
| 498 |
return ( str_contains( $this->tokens_list, $a_string[ $i ] ) && ! $this->escaped( $a_string, $i ) ); |
| 499 |
} |
| 500 |
|
| 501 |
/** |
| 502 |
* Parses CSS in a string. The output is saved as an array in $this->css. |
| 503 |
* |
| 504 |
* @since 1.0.0 |
| 505 |
* |
| 506 |
* @param string $a_string The CSS code. |
| 507 |
* @return bool Whether the CSS code could be parsed successfully. |
| 508 |
*/ |
| 509 |
public function parse( string $a_string ): bool { |
| 510 |
// Temporarily set locale to en_US in order to handle floats properly. |
| 511 |
$old = @setlocale( LC_ALL, 0 ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 512 |
@setlocale( LC_ALL, 'C' ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 513 |
|
| 514 |
$at_rules = &$this->data['csstidy']['at_rules']; |
| 515 |
$quoted_string_properties = &$this->data['csstidy']['quoted_string_properties']; |
| 516 |
|
| 517 |
$this->css = array(); |
| 518 |
$this->print->input_css = $a_string; |
| 519 |
$a_string = str_replace( "\r\n", "\n", $a_string ) . ' '; |
| 520 |
$cur_comment = ''; |
| 521 |
$cur_at = ''; |
| 522 |
|
| 523 |
for ( $i = 0, $size = strlen( $a_string ); $i < $size; $i++ ) { |
| 524 |
if ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) { |
| 525 |
++$this->line; |
| 526 |
} |
| 527 |
|
| 528 |
switch ( $this->status ) { |
| 529 |
/* Case in at-block */ |
| 530 |
case 'at': |
| 531 |
if ( $this->is_token( $a_string, $i ) ) { |
| 532 |
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 533 |
$this->status = 'ic'; |
| 534 |
++$i; |
| 535 |
$this->from[] = 'at'; |
| 536 |
} elseif ( '{' === $a_string[ $i ] ) { |
| 537 |
$this->status = 'is'; |
| 538 |
$this->at = $this->css_new_media_section( $this->at, $cur_at ); |
| 539 |
$this->_add_token( self::AT_START, $this->at ); |
| 540 |
} elseif ( ',' === $a_string[ $i ] ) { |
| 541 |
$cur_at = trim( $cur_at ) . ','; |
| 542 |
} elseif ( '\\' === $a_string[ $i ] ) { |
| 543 |
$cur_at .= $this->_unicode( $a_string, $i ); |
| 544 |
} elseif ( in_array( $a_string[ $i ], array( '(', ')', ':', '.', '/' ), true ) ) { |
| 545 |
// Fix for complicated media, i.e @media screen and (-webkit-min-device-pixel-ratio:1.5). |
| 546 |
// '/' is included for ratios in Opera: (-o-min-device-pixel-ratio: 3/2). |
| 547 |
$cur_at .= $a_string[ $i ]; |
| 548 |
} |
| 549 |
} else { |
| 550 |
$lastpos = strlen( $cur_at ) - 1; |
| 551 |
if ( ! ( ( ctype_space( $cur_at[ $lastpos ] ) || ( $this->is_token( $cur_at, $lastpos ) && ',' === $cur_at[ $lastpos ] ) ) && ctype_space( $a_string[ $i ] ) ) ) { |
| 552 |
$cur_at .= $a_string[ $i ]; |
| 553 |
} |
| 554 |
} |
| 555 |
break; |
| 556 |
/* Case in-selector */ |
| 557 |
case 'is': |
| 558 |
if ( $this->is_token( $a_string, $i ) ) { |
| 559 |
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] && '' === trim( $this->selector ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 560 |
$this->status = 'ic'; |
| 561 |
++$i; |
| 562 |
$this->from[] = 'is'; |
| 563 |
} elseif ( '@' === $a_string[ $i ] && '' === trim( $this->selector ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 564 |
// Check for at-rule. |
| 565 |
$this->invalid_at = true; |
| 566 |
foreach ( $at_rules as $name => $type ) { |
| 567 |
if ( ! strcasecmp( substr( $a_string, $i + 1, strlen( $name ) ), $name ) ) { |
| 568 |
if ( 'at' === $type ) { |
| 569 |
$cur_at = '@' . $name; |
| 570 |
} else { |
| 571 |
$this->selector = '@' . $name; |
| 572 |
} |
| 573 |
if ( 'atis' === $type ) { |
| 574 |
$this->next_selector_at = ( $this->next_selector_at ? $this->next_selector_at : ( $this->at ? $this->at : self::DEFAULT_AT ) ); |
| 575 |
$this->at = $this->css_new_media_section( $this->at, ' ', true ); |
| 576 |
$type = 'is'; |
| 577 |
} |
| 578 |
$this->status = $type; |
| 579 |
$i += strlen( $name ); |
| 580 |
$this->invalid_at = false; |
| 581 |
break; |
| 582 |
} |
| 583 |
} |
| 584 |
|
| 585 |
if ( $this->invalid_at ) { |
| 586 |
$this->selector = '@'; |
| 587 |
$invalid_at_name = ''; |
| 588 |
for ( $j = $i + 1; $j < $size; ++$j ) { |
| 589 |
if ( ! ctype_alpha( $a_string[ $j ] ) ) { |
| 590 |
break; |
| 591 |
} |
| 592 |
$invalid_at_name .= $a_string[ $j ]; |
| 593 |
} |
| 594 |
$this->log( 'Invalid @-rule: ' . $invalid_at_name . ' (removed)', 'Warning' ); |
| 595 |
} |
| 596 |
} elseif ( ( '"' === $a_string[ $i ] || "'" === $a_string[ $i ] ) ) { |
| 597 |
$this->cur_string[] = $a_string[ $i ]; |
| 598 |
$this->status = 'instr'; |
| 599 |
$this->str_char[] = $a_string[ $i ]; |
| 600 |
$this->from[] = 'is'; |
| 601 |
/* Fixing CSS3 attribute selectors, i.e. a[href$=".mp3" */ |
| 602 |
$this->quoted_string[] = ( '=' === $a_string[ $i - 1 ] ); |
| 603 |
} elseif ( $this->invalid_at && ';' === $a_string[ $i ] ) { |
| 604 |
$this->invalid_at = false; |
| 605 |
$this->status = 'is'; |
| 606 |
if ( $this->next_selector_at ) { |
| 607 |
$this->at = $this->css_close_media_section( $this->at ); |
| 608 |
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at ); |
| 609 |
$this->next_selector_at = ''; |
| 610 |
} |
| 611 |
} elseif ( '{' === $a_string[ $i ] ) { |
| 612 |
$this->status = 'ip'; |
| 613 |
if ( '' === $this->at ) { |
| 614 |
$this->at = $this->css_new_media_section( $this->at, self::DEFAULT_AT ); |
| 615 |
} |
| 616 |
$this->selector = $this->css_new_selector( $this->at, $this->selector ); |
| 617 |
$this->_add_token( self::SEL_START, $this->selector ); |
| 618 |
$this->added = false; |
| 619 |
} elseif ( '}' === $a_string[ $i ] ) { |
| 620 |
$this->_add_token( self::AT_END, $this->at ); |
| 621 |
$this->at = $this->css_close_media_section( $this->at ); |
| 622 |
$this->selector = ''; |
| 623 |
$this->sel_separate = array(); |
| 624 |
} elseif ( ',' === $a_string[ $i ] ) { |
| 625 |
$this->selector = trim( $this->selector ) . ','; |
| 626 |
$this->sel_separate[] = strlen( $this->selector ); |
| 627 |
} elseif ( '\\' === $a_string[ $i ] ) { |
| 628 |
$this->selector .= $this->_unicode( $a_string, $i ); |
| 629 |
} elseif ( '*' === $a_string[ $i ] && @in_array( $a_string[ $i + 1 ], array( '.', '#', '[', ':' ), true ) && ( 0 === $i || '/' !== $a_string[ $i - 1 ] ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged,Generic.CodeAnalysis.EmptyStatement.DetectedElseif |
| 630 |
// Remove unnecessary universal selector, FS#147, but not comment in selector. |
| 631 |
} else { |
| 632 |
$this->selector .= $a_string[ $i ]; |
| 633 |
} |
| 634 |
} else { |
| 635 |
$lastpos = strlen( $this->selector ) - 1; |
| 636 |
if ( -1 === $lastpos || ! ( ( ctype_space( $this->selector[ $lastpos ] ) || ( $this->is_token( $this->selector, $lastpos ) && ',' === $this->selector[ $lastpos ] ) ) && ctype_space( $a_string[ $i ] ) ) ) { |
| 637 |
$this->selector .= $a_string[ $i ]; |
| 638 |
} |
| 639 |
} |
| 640 |
break; |
| 641 |
/* Case in-property */ |
| 642 |
case 'ip': |
| 643 |
if ( $this->is_token( $a_string, $i ) ) { |
| 644 |
if ( ( ':' === $a_string[ $i ] || '=' === $a_string[ $i ] ) && '' !== $this->property ) { |
| 645 |
$this->status = 'iv'; |
| 646 |
if ( ! $this->get_cfg( 'discard_invalid_properties' ) || $this->property_is_valid( $this->property ) ) { |
| 647 |
$this->property = $this->css_new_property( $this->at, $this->selector, $this->property ); |
| 648 |
$this->property = strtolower( $this->property ); |
| 649 |
$this->_add_token( self::PROPERTY, $this->property ); |
| 650 |
} |
| 651 |
} elseif ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] && '' === $this->property ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 652 |
$this->status = 'ic'; |
| 653 |
++$i; |
| 654 |
$this->from[] = 'ip'; |
| 655 |
} elseif ( '}' === $a_string[ $i ] ) { |
| 656 |
$this->explode_selectors(); |
| 657 |
$this->status = 'is'; |
| 658 |
$this->invalid_at = false; |
| 659 |
$this->_add_token( self::SEL_END, $this->selector ); |
| 660 |
$this->selector = ''; |
| 661 |
$this->property = ''; |
| 662 |
if ( $this->next_selector_at ) { |
| 663 |
$this->at = $this->css_close_media_section( $this->at ); |
| 664 |
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at ); |
| 665 |
$this->next_selector_at = ''; |
| 666 |
} |
| 667 |
} elseif ( ';' === $a_string[ $i ] ) { |
| 668 |
$this->property = ''; |
| 669 |
} elseif ( '\\' === $a_string[ $i ] ) { |
| 670 |
$this->property .= $this->_unicode( $a_string, $i ); |
| 671 |
} elseif ( ( '' === $this->property && ! ctype_space( $a_string[ $i ] ) ) || ( '/' === $this->property || '/' === $a_string[ $i ] ) ) { |
| 672 |
// else this is dumb IE a hack, keep it. |
| 673 |
// including /. |
| 674 |
$this->property .= $a_string[ $i ]; |
| 675 |
} |
| 676 |
} elseif ( ! ctype_space( $a_string[ $i ] ) ) { |
| 677 |
$this->property .= $a_string[ $i ]; |
| 678 |
} |
| 679 |
break; |
| 680 |
/* Case in-value */ |
| 681 |
case 'iv': |
| 682 |
$pn = ( ( ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) && $this->property_is_next( $a_string, $i + 1 ) ) || ( strlen( $a_string ) - 1 ) === $i ); |
| 683 |
if ( ( $this->is_token( $a_string, $i ) || $pn ) && ( ! ( ',' === $a_string[ $i ] && ! ctype_space( $a_string[ $i + 1 ] ) ) ) ) { |
| 684 |
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 685 |
$this->status = 'ic'; |
| 686 |
++$i; |
| 687 |
$this->from[] = 'iv'; |
| 688 |
} elseif ( ( '"' === $a_string[ $i ] || "'" === $a_string[ $i ] || '(' === $a_string[ $i ] ) ) { |
| 689 |
$this->cur_string[] = $a_string[ $i ]; |
| 690 |
$this->str_char[] = ( '(' === $a_string[ $i ] ) ? ')' : $a_string[ $i ]; |
| 691 |
$this->status = 'instr'; |
| 692 |
$this->from[] = 'iv'; |
| 693 |
$this->quoted_string[] = in_array( strtolower( $this->property ), $quoted_string_properties, true ); |
| 694 |
} elseif ( ',' === $a_string[ $i ] ) { |
| 695 |
$this->sub_value = trim( $this->sub_value ) . ','; |
| 696 |
} elseif ( '\\' === $a_string[ $i ] ) { |
| 697 |
$this->sub_value .= $this->_unicode( $a_string, $i ); |
| 698 |
} elseif ( ';' === $a_string[ $i ] || $pn ) { |
| 699 |
if ( '@' === $this->selector[0] && isset( $at_rules[ substr( $this->selector, 1 ) ] ) && 'iv' === $at_rules[ substr( $this->selector, 1 ) ] ) { |
| 700 |
$this->status = 'is'; |
| 701 |
|
| 702 |
switch ( $this->selector ) { |
| 703 |
case '@charset': |
| 704 |
// Add quotes to charset. |
| 705 |
$this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"'; |
| 706 |
$this->charset = $this->sub_value_arr[0]; |
| 707 |
break; |
| 708 |
case '@namespace': |
| 709 |
// Add quotes to namespace. |
| 710 |
$this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"'; |
| 711 |
$this->namespace = implode( ' ', $this->sub_value_arr ); |
| 712 |
break; |
| 713 |
case '@import': |
| 714 |
$this->sub_value = trim( $this->sub_value ); |
| 715 |
|
| 716 |
if ( empty( $this->sub_value_arr ) ) { |
| 717 |
// Quote URLs in imports only if they're not already inside url() and not already quoted. |
| 718 |
if ( ! str_starts_with( $this->sub_value, 'url(' ) ) { |
| 719 |
if ( ! str_ends_with( $this->sub_value, $this->sub_value[0] ) && in_array( $this->sub_value[0], array( "'", '"' ), true ) ) { |
| 720 |
$this->sub_value = '"' . $this->sub_value . '"'; |
| 721 |
} |
| 722 |
} |
| 723 |
} |
| 724 |
|
| 725 |
$this->sub_value_arr[] = $this->sub_value; |
| 726 |
$this->import[] = implode( ' ', $this->sub_value_arr ); |
| 727 |
break; |
| 728 |
} |
| 729 |
|
| 730 |
$this->sub_value_arr = array(); |
| 731 |
$this->sub_value = ''; |
| 732 |
$this->selector = ''; |
| 733 |
$this->sel_separate = array(); |
| 734 |
} else { |
| 735 |
$this->status = 'ip'; |
| 736 |
} |
| 737 |
} elseif ( '}' !== $a_string[ $i ] ) { |
| 738 |
$this->sub_value .= $a_string[ $i ]; |
| 739 |
} |
| 740 |
if ( ( '}' === $a_string[ $i ] || ';' === $a_string[ $i ] || $pn ) && ! empty( $this->selector ) ) { |
| 741 |
if ( '' === $this->at ) { |
| 742 |
$this->at = $this->css_new_media_section( $this->at, self::DEFAULT_AT ); |
| 743 |
} |
| 744 |
|
| 745 |
// Case settings. |
| 746 |
if ( $this->get_cfg( 'lowercase_s' ) ) { |
| 747 |
$this->selector = strtolower( $this->selector ); |
| 748 |
} |
| 749 |
$this->property = strtolower( $this->property ); |
| 750 |
|
| 751 |
$this->optimise->subvalue(); |
| 752 |
if ( '' !== $this->sub_value ) { |
| 753 |
$this->sub_value_arr[] = $this->sub_value; |
| 754 |
$this->sub_value = ''; |
| 755 |
} |
| 756 |
|
| 757 |
$this->value = ''; |
| 758 |
while ( count( $this->sub_value_arr ) ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found |
| 759 |
$sub = array_shift( $this->sub_value_arr ); |
| 760 |
if ( strstr( $this->selector, 'font-face' ) ) { |
| 761 |
$sub = $this->quote_font_format( $sub ); |
| 762 |
} |
| 763 |
|
| 764 |
if ( '' !== $sub ) { |
| 765 |
if ( strlen( $this->value ) && ( ! str_ends_with( $this->value, ',' ) || $this->get_cfg( 'preserve_css' ) ) ) { |
| 766 |
$this->value .= ' '; |
| 767 |
} |
| 768 |
$this->value .= $sub; |
| 769 |
} |
| 770 |
} |
| 771 |
|
| 772 |
$this->optimise->value(); |
| 773 |
|
| 774 |
$valid = $this->property_is_valid( $this->property ); |
| 775 |
if ( ( ! $this->invalid_at || $this->get_cfg( 'preserve_css' ) ) && ( ! $this->get_cfg( 'discard_invalid_properties' ) || $valid ) ) { |
| 776 |
$this->css_add_property( $this->at, $this->selector, $this->property, $this->value ); |
| 777 |
$this->_add_token( self::VALUE, $this->value ); |
| 778 |
$this->optimise->shorthands(); |
| 779 |
} |
| 780 |
if ( ! $valid ) { |
| 781 |
if ( $this->get_cfg( 'discard_invalid_properties' ) ) { |
| 782 |
$this->log( 'Removed invalid property: ' . $this->property, 'Warning' ); |
| 783 |
} else { |
| 784 |
$this->log( 'Invalid property in ' . strtoupper( $this->get_cfg( 'css_level' ) ) . ': ' . $this->property, 'Warning' ); |
| 785 |
} |
| 786 |
} |
| 787 |
|
| 788 |
$this->property = ''; |
| 789 |
$this->sub_value_arr = array(); |
| 790 |
$this->value = ''; |
| 791 |
} |
| 792 |
if ( '}' === $a_string[ $i ] ) { |
| 793 |
$this->explode_selectors(); |
| 794 |
$this->_add_token( self::SEL_END, $this->selector ); |
| 795 |
$this->status = 'is'; |
| 796 |
$this->invalid_at = false; |
| 797 |
$this->selector = ''; |
| 798 |
if ( $this->next_selector_at ) { |
| 799 |
$this->at = $this->css_close_media_section( $this->at ); |
| 800 |
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at ); |
| 801 |
$this->next_selector_at = ''; |
| 802 |
} |
| 803 |
} |
| 804 |
} elseif ( ! $pn ) { |
| 805 |
$this->sub_value .= $a_string[ $i ]; |
| 806 |
|
| 807 |
if ( ctype_space( $a_string[ $i ] ) || ',' === $a_string[ $i ] ) { |
| 808 |
$this->optimise->subvalue(); |
| 809 |
if ( '' !== $this->sub_value ) { |
| 810 |
$this->sub_value_arr[] = $this->sub_value; |
| 811 |
$this->sub_value = ''; |
| 812 |
} |
| 813 |
} |
| 814 |
} |
| 815 |
break; |
| 816 |
/* Case in string */ |
| 817 |
case 'instr': |
| 818 |
$_str_char = $this->str_char[ count( $this->str_char ) - 1 ]; |
| 819 |
$_cur_string = $this->cur_string[ count( $this->cur_string ) - 1 ]; |
| 820 |
$_quoted_string = $this->quoted_string[ count( $this->quoted_string ) - 1 ]; |
| 821 |
$temp_add = $a_string[ $i ]; |
| 822 |
|
| 823 |
// Add another string to the stack. Strings can't be nested inside of quotes, only parentheses, |
| 824 |
// but parentheticals can be nested more than once. |
| 825 |
if ( ')' === $_str_char && ( '(' === $a_string[ $i ] || '"' === $a_string[ $i ] || '\\' === $a_string[ $i ] ) && ! $this->escaped( $a_string, $i ) ) { |
| 826 |
$this->cur_string[] = $a_string[ $i ]; |
| 827 |
$this->str_char[] = ( '(' === $a_string[ $i ] ) ? ')' : $a_string[ $i ]; |
| 828 |
$this->from[] = 'instr'; |
| 829 |
$this->quoted_string[] = ( ')' === $_str_char && '(' !== $a_string[ $i ] && '(' === trim( $_cur_string ) ) ? $_quoted_string : ( '(' !== $a_string[ $i ] ); |
| 830 |
continue 2; |
| 831 |
} |
| 832 |
|
| 833 |
if ( ')' !== $_str_char && ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) && ! ( '\\' === $a_string[ $i - 1 ] && ! $this->escaped( $a_string, $i - 1 ) ) ) { |
| 834 |
$temp_add = '\\A'; |
| 835 |
$this->log( 'Fixed incorrect newline in string', 'Warning' ); |
| 836 |
} |
| 837 |
|
| 838 |
$_cur_string .= $temp_add; |
| 839 |
|
| 840 |
if ( $a_string[ $i ] === $_str_char && ! $this->escaped( $a_string, $i ) ) { |
| 841 |
$this->status = array_pop( $this->from ); |
| 842 |
|
| 843 |
if ( ! preg_match( '|[' . implode( '', $this->data['csstidy']['whitespace'] ) . ']|uis', $_cur_string ) && 'content' !== $this->property ) { |
| 844 |
if ( ! $_quoted_string ) { |
| 845 |
if ( ')' !== $_str_char ) { |
| 846 |
/* |
| 847 |
* Convert properties like |
| 848 |
* font-family: 'Arial'; |
| 849 |
* to |
| 850 |
* font-family: Arial; |
| 851 |
* or |
| 852 |
* url("abc") |
| 853 |
* to |
| 854 |
* url(abc) |
| 855 |
*/ |
| 856 |
$_cur_string = substr( $_cur_string, 1, -1 ); |
| 857 |
} |
| 858 |
} else { |
| 859 |
$_quoted_string = false; |
| 860 |
} |
| 861 |
} |
| 862 |
|
| 863 |
array_pop( $this->cur_string ); |
| 864 |
array_pop( $this->quoted_string ); |
| 865 |
array_pop( $this->str_char ); |
| 866 |
|
| 867 |
if ( ')' === $_str_char ) { |
| 868 |
$_cur_string = '(' . trim( substr( $_cur_string, 1, -1 ) ) . ')'; |
| 869 |
} |
| 870 |
|
| 871 |
if ( 'iv' === $this->status ) { |
| 872 |
if ( ! $_quoted_string ) { |
| 873 |
if ( str_contains( $_cur_string, ',' ) ) { |
| 874 |
// We can on only remove space next to ','. |
| 875 |
$_cur_string = implode( ',', array_map( 'trim', explode( ',', $_cur_string ) ) ); |
| 876 |
} |
| 877 |
// and multiple spaces (too expensive). |
| 878 |
if ( str_contains( $_cur_string, ' ' ) ) { |
| 879 |
$_cur_string = preg_replace( ',\s+,', ' ', $_cur_string ); |
| 880 |
} |
| 881 |
} |
| 882 |
$this->sub_value .= $_cur_string; |
| 883 |
} elseif ( 'is' === $this->status ) { |
| 884 |
$this->selector .= $_cur_string; |
| 885 |
} elseif ( 'instr' === $this->status ) { |
| 886 |
$this->cur_string[ count( $this->cur_string ) - 1 ] .= $_cur_string; |
| 887 |
} |
| 888 |
} else { |
| 889 |
$this->cur_string[ count( $this->cur_string ) - 1 ] = $_cur_string; |
| 890 |
} |
| 891 |
break; |
| 892 |
/* Case in-comment */ |
| 893 |
case 'ic': |
| 894 |
if ( '*' === $a_string[ $i ] && '/' === $a_string[ $i + 1 ] ) { |
| 895 |
$this->status = array_pop( $this->from ); |
| 896 |
++$i; |
| 897 |
if ( strlen( $cur_comment ) > 1 && str_starts_with( $cur_comment, '!' ) ) { |
| 898 |
$this->_add_token( self::IMPORTANT_COMMENT, $cur_comment ); |
| 899 |
$this->css_add_important_comment( $cur_comment ); |
| 900 |
} else { |
| 901 |
$this->_add_token( self::COMMENT, $cur_comment ); |
| 902 |
} |
| 903 |
$cur_comment = ''; |
| 904 |
} else { |
| 905 |
$cur_comment .= $a_string[ $i ]; |
| 906 |
} |
| 907 |
break; |
| 908 |
} |
| 909 |
} |
| 910 |
|
| 911 |
$this->optimise->postparse(); |
| 912 |
$this->print->_reset(); |
| 913 |
|
| 914 |
// Set locale back to original setting. |
| 915 |
@setlocale( LC_ALL, $old ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 916 |
|
| 917 |
return ! ( empty( $this->css ) && empty( $this->import ) && empty( $this->charset ) && empty( $this->tokens ) && empty( $this->namespace ) ); |
| 918 |
} |
| 919 |
|
| 920 |
/** |
| 921 |
* Quoting: format() in font-face needs quoted values for some browser (FF at least). |
| 922 |
* |
| 923 |
* @since 1.0.0 |
| 924 |
* |
| 925 |
* @param string $value Value. |
| 926 |
* @return string String. |
| 927 |
*/ |
| 928 |
protected function quote_font_format( string $value ): string { |
| 929 |
if ( str_starts_with( $value, 'format' ) ) { |
| 930 |
$p = strpos( $value, ')', 7 ); |
| 931 |
$end = substr( $value, $p ); |
| 932 |
$format_strings = $this->parse_string_list( substr( $value, 7, $p - 7 ) ); |
| 933 |
if ( ! $format_strings ) { |
| 934 |
$value = ''; |
| 935 |
} else { |
| 936 |
$value = 'format('; |
| 937 |
foreach ( $format_strings as $format_string ) { |
| 938 |
$value .= '"' . str_replace( '"', '\\"', $format_string ) . '",'; |
| 939 |
} |
| 940 |
$value = substr( $value, 0, -1 ) . $end; |
| 941 |
} |
| 942 |
} |
| 943 |
return $value; |
| 944 |
} |
| 945 |
|
| 946 |
/** |
| 947 |
* Explodes selectors. |
| 948 |
* |
| 949 |
* @since 1.0.0 |
| 950 |
*/ |
| 951 |
protected function explode_selectors(): void { |
| 952 |
// Explode multiple selectors. |
| 953 |
if ( 1 === $this->get_cfg( 'merge_selectors' ) ) { |
| 954 |
$new_sels = array(); |
| 955 |
$lastpos = 0; |
| 956 |
$this->sel_separate[] = strlen( $this->selector ); |
| 957 |
foreach ( $this->sel_separate as $num => $pos ) { |
| 958 |
if ( ( count( $this->sel_separate ) - 1 ) === $num ) { |
| 959 |
++$pos; |
| 960 |
} |
| 961 |
|
| 962 |
$new_sels[] = substr( $this->selector, $lastpos, $pos - $lastpos - 1 ); |
| 963 |
$lastpos = $pos; |
| 964 |
} |
| 965 |
|
| 966 |
if ( count( $new_sels ) > 1 ) { |
| 967 |
foreach ( $new_sels as $selector ) { |
| 968 |
if ( isset( $this->css[ $this->at ][ $this->selector ] ) ) { |
| 969 |
$this->merge_css_blocks( $this->at, $selector, $this->css[ $this->at ][ $this->selector ] ); |
| 970 |
} |
| 971 |
} |
| 972 |
unset( $this->css[ $this->at ][ $this->selector ] ); |
| 973 |
} |
| 974 |
} |
| 975 |
$this->sel_separate = array(); |
| 976 |
} |
| 977 |
|
| 978 |
/** |
| 979 |
* Checks if a character is escaped. |
| 980 |
* |
| 981 |
* @since 1.0.0 |
| 982 |
* |
| 983 |
* @param string $a_string String. |
| 984 |
* @param int $pos Position. |
| 985 |
* @return bool Whether a character is escaped. |
| 986 |
*/ |
| 987 |
public function escaped( string &$a_string, int $pos ): bool { |
| 988 |
return $pos ? ! ( @( '\\' !== $a_string[ $pos - 1 ] ) || $this->escaped( $a_string, $pos - 1 ) ) : false; // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged |
| 989 |
} |
| 990 |
|
| 991 |
/** |
| 992 |
* Adds an important comment to the CSS code (one we want to keep when minifying). |
| 993 |
* |
| 994 |
* @since 1.10.0 |
| 995 |
* |
| 996 |
* @param string $comment CSS Comment. |
| 997 |
*/ |
| 998 |
protected function css_add_important_comment( string $comment ): void { |
| 999 |
if ( $this->get_cfg( 'preserve_css' ) || '' === trim( $comment ) ) { |
| 1000 |
return; |
| 1001 |
} |
| 1002 |
if ( ! isset( $this->css['!'] ) ) { |
| 1003 |
$this->css['!'] = ''; |
| 1004 |
} else { |
| 1005 |
$this->css['!'] .= "\n"; |
| 1006 |
} |
| 1007 |
$this->css['!'] .= $comment; |
| 1008 |
} |
| 1009 |
|
| 1010 |
/** |
| 1011 |
* Adds a property with value to the existing CSS code. |
| 1012 |
* |
| 1013 |
* @since 1.0.0 |
| 1014 |
* |
| 1015 |
* @param string $media Media. |
| 1016 |
* @param string $selector Selector. |
| 1017 |
* @param string $property Property. |
| 1018 |
* @param string $new_val New value. |
| 1019 |
*/ |
| 1020 |
protected function css_add_property( string $media, string $selector, string $property, string $new_val ): void { |
| 1021 |
if ( $this->get_cfg( 'preserve_css' ) || '' === trim( $new_val ) ) { |
| 1022 |
return; |
| 1023 |
} |
| 1024 |
|
| 1025 |
$this->added = true; |
| 1026 |
if ( isset( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1027 |
if ( ( $this->is_important( $this->css[ $media ][ $selector ][ $property ] ) && $this->is_important( $new_val ) ) || ! $this->is_important( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1028 |
$this->css[ $media ][ $selector ][ $property ] = trim( $new_val ); |
| 1029 |
} |
| 1030 |
} else { |
| 1031 |
$this->css[ $media ][ $selector ][ $property ] = trim( $new_val ); |
| 1032 |
} |
| 1033 |
} |
| 1034 |
|
| 1035 |
/** |
| 1036 |
* Checks if a current media section is the continuation of the last one. |
| 1037 |
* If not increase the name of the media section to avoid a merging. |
| 1038 |
* |
| 1039 |
* @since 1.10.0 |
| 1040 |
* |
| 1041 |
* @param int|string $media Media. |
| 1042 |
* @return int|string [return value] |
| 1043 |
*/ |
| 1044 |
protected function css_check_last_media_section_or_inc( $media ) /* : int|string */ { |
| 1045 |
// Are we starting? |
| 1046 |
if ( empty( $this->css ) || ! is_array( $this->css ) ) { |
| 1047 |
return $media; |
| 1048 |
} |
| 1049 |
// If the last @media is the same as this, keep it. |
| 1050 |
$at = array_key_last( $this->css ); |
| 1051 |
if ( $at === $media ) { |
| 1052 |
return $media; |
| 1053 |
} |
| 1054 |
// Otherwise increase the section in the array. |
| 1055 |
while ( isset( $this->css[ $media ] ) ) { |
| 1056 |
if ( is_numeric( $media ) ) { |
| 1057 |
++$media; |
| 1058 |
} else { |
| 1059 |
$media .= ' '; |
| 1060 |
} |
| 1061 |
} |
| 1062 |
return $media; |
| 1063 |
} |
| 1064 |
|
| 1065 |
/** |
| 1066 |
* Starts a new media section. |
| 1067 |
* |
| 1068 |
* Check if the media is not already known, else rename it with extra spaces to avoid merging. |
| 1069 |
* |
| 1070 |
* @since 1.0.0 |
| 1071 |
* |
| 1072 |
* @param string|int $current_media Media. |
| 1073 |
* @param string $new_media Media. |
| 1074 |
* @param bool $at_root Optional. Default false. |
| 1075 |
* @return int|string [return value] |
| 1076 |
*/ |
| 1077 |
protected function css_new_media_section( $current_media, string $new_media, bool $at_root = false ) /* : int|string */ { |
| 1078 |
if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1079 |
return $new_media; |
| 1080 |
} |
| 1081 |
// If we already are in a media and CSS level is 3, manage nested medias. |
| 1082 |
if ( $current_media |
| 1083 |
&& ! $at_root |
| 1084 |
// Numeric $current_media means self::DEFAULT_AT or inc. |
| 1085 |
&& ! is_numeric( $current_media ) |
| 1086 |
&& str_starts_with( $this->get_cfg( 'css_level' ), 'CSS3' ) ) { |
| 1087 |
$new_media = rtrim( $current_media ) . '{' . rtrim( $new_media ); |
| 1088 |
} |
| 1089 |
return $this->css_check_last_media_section_or_inc( $new_media ); |
| 1090 |
} |
| 1091 |
|
| 1092 |
/** |
| 1093 |
* Closes a media section. |
| 1094 |
* |
| 1095 |
* Finds the parent media we were in before or the root. |
| 1096 |
* |
| 1097 |
* @since 1.10.0 |
| 1098 |
* |
| 1099 |
* @param string $current_media Current Media. |
| 1100 |
* @return string [return value] |
| 1101 |
*/ |
| 1102 |
protected function css_close_media_section( string $current_media ): string { |
| 1103 |
if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1104 |
return ''; |
| 1105 |
} |
| 1106 |
if ( str_contains( $current_media, '{' ) ) { |
| 1107 |
$current_media = explode( '{', $current_media ); |
| 1108 |
array_pop( $current_media ); |
| 1109 |
$current_media = implode( '{', $current_media ); |
| 1110 |
return $current_media; |
| 1111 |
} |
| 1112 |
|
| 1113 |
return ''; |
| 1114 |
} |
| 1115 |
|
| 1116 |
/** |
| 1117 |
* Starts a new selector. |
| 1118 |
* |
| 1119 |
* If already referenced in this media section, rename it with extra space to avoid merging, |
| 1120 |
* except if merging is required, or last selector is the same (merge siblings). |
| 1121 |
* Never merge @font-face. |
| 1122 |
* |
| 1123 |
* @since 1.0.0 |
| 1124 |
* |
| 1125 |
* @param string $media Media. |
| 1126 |
* @param string $selector Selector. |
| 1127 |
* @return string [return value] |
| 1128 |
*/ |
| 1129 |
protected function css_new_selector( string $media, string $selector ): string { |
| 1130 |
if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1131 |
return $selector; |
| 1132 |
} |
| 1133 |
$selector = trim( $selector ); |
| 1134 |
if ( ! str_starts_with( $selector, '@font-face' ) ) { |
| 1135 |
if ( false !== $this->settings['merge_selectors'] ) { |
| 1136 |
return $selector; |
| 1137 |
} |
| 1138 |
|
| 1139 |
if ( empty( $this->css ) || ! isset( $this->css[ $media ] ) || ! $this->css[ $media ] ) { |
| 1140 |
return $selector; |
| 1141 |
} |
| 1142 |
|
| 1143 |
// If last is the same, keep it. |
| 1144 |
$sel = array_key_last( $this->css[ $media ] ); |
| 1145 |
if ( $sel === $selector ) { |
| 1146 |
return $selector; |
| 1147 |
} |
| 1148 |
} |
| 1149 |
|
| 1150 |
while ( isset( $this->css[ $media ][ $selector ] ) ) { |
| 1151 |
$selector .= ' '; |
| 1152 |
} |
| 1153 |
return $selector; |
| 1154 |
} |
| 1155 |
|
| 1156 |
/** |
| 1157 |
* Starts a new property. |
| 1158 |
* |
| 1159 |
* If already referenced in this selector, rename it with extra space to avoid override. |
| 1160 |
* |
| 1161 |
* @since 1.0.0 |
| 1162 |
* |
| 1163 |
* @param string $media Media. |
| 1164 |
* @param string $selector Selector. |
| 1165 |
* @param string $property Property. |
| 1166 |
* @return string [return value] |
| 1167 |
*/ |
| 1168 |
protected function css_new_property( string $media, string $selector, string $property ): string { |
| 1169 |
if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1170 |
return $property; |
| 1171 |
} |
| 1172 |
if ( empty( $this->css ) || ! isset( $this->css[ $media ][ $selector ] ) || ! $this->css[ $media ][ $selector ] ) { |
| 1173 |
return $property; |
| 1174 |
} |
| 1175 |
|
| 1176 |
while ( isset( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1177 |
$property .= ' '; |
| 1178 |
} |
| 1179 |
|
| 1180 |
return $property; |
| 1181 |
} |
| 1182 |
|
| 1183 |
/** |
| 1184 |
* Adds CSS to an existing media/selector. |
| 1185 |
* |
| 1186 |
* @since 1.0.0 |
| 1187 |
* |
| 1188 |
* @param string $media Media. |
| 1189 |
* @param string $selector Selector. |
| 1190 |
* @param array<string, string> $css_add Additional CSS. |
| 1191 |
*/ |
| 1192 |
public function merge_css_blocks( string $media, string $selector, array $css_add ): void { |
| 1193 |
foreach ( $css_add as $property => $value ) { |
| 1194 |
$this->css_add_property( $media, $selector, $property, $value ); |
| 1195 |
} |
| 1196 |
} |
| 1197 |
|
| 1198 |
/** |
| 1199 |
* Checks if $value is !important. |
| 1200 |
* |
| 1201 |
* @since 1.0.0 |
| 1202 |
* |
| 1203 |
* @param string $value Value. |
| 1204 |
* @return bool Whether the value has the !important keyword. |
| 1205 |
*/ |
| 1206 |
public function is_important( string &$value ): bool { |
| 1207 |
return ( |
| 1208 |
str_contains( $value, '!' ) // Quick test. |
| 1209 |
&& ! strcasecmp( substr( str_replace( $this->data['csstidy']['whitespace'], '', $value ), -10, 10 ), '!important' ) ); |
| 1210 |
} |
| 1211 |
|
| 1212 |
/** |
| 1213 |
* Returns a value without !important. |
| 1214 |
* |
| 1215 |
* @since 1.0.0 |
| 1216 |
* |
| 1217 |
* @param string $value Value. |
| 1218 |
* @return string Value without the !important; |
| 1219 |
*/ |
| 1220 |
public function gvw_important( string $value ): string { |
| 1221 |
if ( $this->is_important( $value ) ) { |
| 1222 |
$value = trim( $value ); |
| 1223 |
$value = substr( $value, 0, -9 ); |
| 1224 |
$value = trim( $value ); |
| 1225 |
$value = substr( $value, 0, -1 ); |
| 1226 |
$value = trim( $value ); |
| 1227 |
return $value; |
| 1228 |
} |
| 1229 |
return $value; |
| 1230 |
} |
| 1231 |
|
| 1232 |
/** |
| 1233 |
* Checks if the next word in a string from pos is a CSS property. |
| 1234 |
* |
| 1235 |
* @since 1.0.0 |
| 1236 |
* |
| 1237 |
* @param string $istring String. |
| 1238 |
* @param int $pos Position. |
| 1239 |
* @return bool [return value] |
| 1240 |
*/ |
| 1241 |
protected function property_is_next( string $istring, int $pos ): bool { |
| 1242 |
$all_properties = &$this->data['csstidy']['all_properties']; |
| 1243 |
$istring = substr( $istring, $pos, strlen( $istring ) - $pos ); |
| 1244 |
$pos = strpos( $istring, ':' ); |
| 1245 |
if ( false === $pos ) { |
| 1246 |
return false; |
| 1247 |
} |
| 1248 |
$istring = strtolower( trim( substr( $istring, 0, $pos ) ) ); |
| 1249 |
if ( isset( $all_properties[ $istring ] ) ) { |
| 1250 |
$this->log( 'Added semicolon to the end of declaration', 'Warning' ); |
| 1251 |
return true; |
| 1252 |
} |
| 1253 |
return false; |
| 1254 |
} |
| 1255 |
|
| 1256 |
/** |
| 1257 |
* Checks if a property is valid. |
| 1258 |
* |
| 1259 |
* @since 1.0.0 |
| 1260 |
* |
| 1261 |
* @param string $property Property. |
| 1262 |
* @return bool Whether the property is valid. |
| 1263 |
*/ |
| 1264 |
public function property_is_valid( string $property ): bool { |
| 1265 |
$property = strtolower( $property ); |
| 1266 |
if ( str_starts_with( $property, '--' ) ) { |
| 1267 |
$property = '--custom'; // Replace custom properties with a temporary placeholder that is marked as valid in the list of properties. |
| 1268 |
} elseif ( in_array( trim( $property ), $this->data['csstidy']['multiple_properties'], true ) ) { |
| 1269 |
$property = trim( $property ); |
| 1270 |
} |
| 1271 |
$all_properties = &$this->data['csstidy']['all_properties']; |
| 1272 |
return isset( $all_properties[ $property ] ) && str_contains( $all_properties[ $property ], strtoupper( $this->get_cfg( 'css_level' ) ) ); |
| 1273 |
} |
| 1274 |
|
| 1275 |
/** |
| 1276 |
* Accepts a list of strings (e.g. the argument to format() in a @font-face src property) |
| 1277 |
* and returns a list of the strings. Converts things like: |
| 1278 |
* format(abc) => format("abc") |
| 1279 |
* format(abc def) => format("abc","def") |
| 1280 |
* format(abc "def") => format("abc","def") |
| 1281 |
* format(abc, def, ghi) => format("abc","def","ghi") |
| 1282 |
* format("abc",'def') => format("abc","def") |
| 1283 |
* format("abc, def, ghi") => format("abc, def, ghi") |
| 1284 |
* |
| 1285 |
* @since 1.0.0 |
| 1286 |
* |
| 1287 |
* @param string $value [description]. |
| 1288 |
* @return string[] [description] |
| 1289 |
*/ |
| 1290 |
public function parse_string_list( string $value ): array { |
| 1291 |
$value = trim( $value ); |
| 1292 |
|
| 1293 |
// Case: empty. |
| 1294 |
if ( ! $value ) { |
| 1295 |
return array(); |
| 1296 |
} |
| 1297 |
|
| 1298 |
$a_strings = array(); |
| 1299 |
|
| 1300 |
$in_str = false; |
| 1301 |
$current_string = ''; |
| 1302 |
|
| 1303 |
for ( $i = 0, $_len = strlen( $value ); $i < $_len; $i++ ) { |
| 1304 |
if ( ( ',' === $value[ $i ] || ' ' === $value[ $i ] ) && true === $in_str ) { |
| 1305 |
$in_str = false; |
| 1306 |
$a_strings[] = $current_string; |
| 1307 |
$current_string = ''; |
| 1308 |
} elseif ( '"' === $value[ $i ] || "'" === $value[ $i ] ) { |
| 1309 |
if ( $in_str === $value[ $i ] ) { |
| 1310 |
$a_strings[] = $current_string; |
| 1311 |
$in_str = false; |
| 1312 |
$current_string = ''; |
| 1313 |
continue; |
| 1314 |
} elseif ( ! $in_str ) { |
| 1315 |
$in_str = $value[ $i ]; |
| 1316 |
} |
| 1317 |
} else { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found |
| 1318 |
if ( $in_str ) { |
| 1319 |
$current_string .= $value[ $i ]; |
| 1320 |
} else { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found |
| 1321 |
if ( ! preg_match( '/[\s,]/', $value[ $i ] ) ) { |
| 1322 |
$in_str = true; |
| 1323 |
$current_string = $value[ $i ]; |
| 1324 |
} |
| 1325 |
} |
| 1326 |
} |
| 1327 |
} |
| 1328 |
|
| 1329 |
if ( $current_string ) { |
| 1330 |
$a_strings[] = $current_string; |
| 1331 |
} |
| 1332 |
|
| 1333 |
return $a_strings; |
| 1334 |
} |
| 1335 |
|
| 1336 |
} // class TablePress_CSSTidy |
| 1337 |
|
