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class.csstidy.php
1310 lines
| 1 | <?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
| 2 | /** |
| 3 | * CSSTidy - CSS Parser and Optimiser |
| 4 | * |
| 5 | * CSS Parser class |
| 6 | * |
| 7 | * Copyright 2005, 2006, 2007 Florian Schmitz |
| 8 | * |
| 9 | * This file is part of CSSTidy. |
| 10 | * |
| 11 | * CSSTidy is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU Lesser General Public License as published by |
| 13 | * the Free Software Foundation; either version 2.1 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | * |
| 16 | * CSSTidy is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU Lesser General Public License |
| 22 | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
| 23 | * |
| 24 | * @license https://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License |
| 25 | * @package csstidy |
| 26 | * @author Florian Schmitz (floele at gmail dot com) 2005-2007 |
| 27 | * @author Brett Zamir (brettz9 at yahoo dot com) 2007 |
| 28 | * @author Nikolay Matsievsky (speed at webo dot name) 2009-2010 |
| 29 | * @author Cedric Morin (cedric at yterium dot com) 2010 |
| 30 | */ |
| 31 | |
| 32 | // phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged |
| 33 | |
| 34 | /** |
| 35 | * Defines ctype functions if required |
| 36 | * |
| 37 | * @version 1.0 |
| 38 | */ |
| 39 | require_once __DIR__ . '/class.csstidy-ctype.php'; |
| 40 | |
| 41 | /** |
| 42 | * Various CSS data needed for correct optimisations etc. |
| 43 | * |
| 44 | * @version 1.3 |
| 45 | */ |
| 46 | require __DIR__ . '/data.inc.php'; |
| 47 | |
| 48 | /** |
| 49 | * Contains a class for printing CSS code |
| 50 | * |
| 51 | * @version 1.0 |
| 52 | */ |
| 53 | require __DIR__ . '/class.csstidy-print.php'; |
| 54 | |
| 55 | /** |
| 56 | * Contains a class for optimising CSS code |
| 57 | * |
| 58 | * @version 1.0 |
| 59 | */ |
| 60 | require __DIR__ . '/class.csstidy-optimise.php'; |
| 61 | |
| 62 | /** |
| 63 | * CSS Parser class |
| 64 | |
| 65 | * This class represents a CSS parser which reads CSS code and saves it in an array. |
| 66 | * In opposite to most other CSS parsers, it does not use regular expressions and |
| 67 | * thus has full CSS2 support and a higher reliability. |
| 68 | * Additional to that it applies some optimisations and fixes to the CSS code. |
| 69 | * An online version should be available here: https://cdburnerxp.se/cssparse/css_optimiser.php |
| 70 | * |
| 71 | * @package csstidy |
| 72 | * @author Florian Schmitz (floele at gmail dot com) 2005-2006 |
| 73 | * @version 1.3.1 |
| 74 | */ |
| 75 | #[AllowDynamicProperties] |
| 76 | class csstidy { // phpcs:ignore |
| 77 | |
| 78 | /** |
| 79 | * Saves the parsed CSS. This array is empty if preserve_css is on. |
| 80 | * |
| 81 | * @var array |
| 82 | * @access public |
| 83 | */ |
| 84 | public $css = array(); |
| 85 | /** |
| 86 | * Saves the parsed CSS (raw) |
| 87 | * |
| 88 | * @var array |
| 89 | * @access private |
| 90 | */ |
| 91 | public $tokens = array(); |
| 92 | /** |
| 93 | * Printer class |
| 94 | * |
| 95 | * @see csstidy_print |
| 96 | * @var object |
| 97 | * @access public |
| 98 | */ |
| 99 | public $print; |
| 100 | /** |
| 101 | * Optimiser class |
| 102 | * |
| 103 | * @see csstidy_optimise |
| 104 | * @var object |
| 105 | * @access private |
| 106 | */ |
| 107 | public $optimise; |
| 108 | /** |
| 109 | * Saves the CSS charset (@charset) |
| 110 | * |
| 111 | * @var string |
| 112 | * @access private |
| 113 | */ |
| 114 | public $charset = ''; |
| 115 | /** |
| 116 | * Saves all @import URLs |
| 117 | * |
| 118 | * @var array |
| 119 | * @access private |
| 120 | */ |
| 121 | public $import = array(); |
| 122 | /** |
| 123 | * Saves the namespace |
| 124 | * |
| 125 | * @var string |
| 126 | * @access private |
| 127 | */ |
| 128 | public $namespace = ''; |
| 129 | /** |
| 130 | * Contains the version of csstidy |
| 131 | * |
| 132 | * @var string |
| 133 | * @access private |
| 134 | */ |
| 135 | public $version = '1.3'; |
| 136 | /** |
| 137 | * Stores the settings |
| 138 | * |
| 139 | * @var array |
| 140 | * @access private |
| 141 | */ |
| 142 | public $settings = array(); |
| 143 | /** |
| 144 | * Saves the parser-status. |
| 145 | * |
| 146 | * Possible values: |
| 147 | * - is = in selector |
| 148 | * - ip = in property |
| 149 | * - iv = in value |
| 150 | * - instr = in string (started at " or ' or ( ) |
| 151 | * - ic = in comment (ignore everything) |
| 152 | * - at = in @-block |
| 153 | * |
| 154 | * @var string |
| 155 | * @access private |
| 156 | */ |
| 157 | public $status = 'is'; |
| 158 | /** |
| 159 | * Saves the current at rule (@media) |
| 160 | * |
| 161 | * @var string |
| 162 | * @access private |
| 163 | */ |
| 164 | public $at = ''; |
| 165 | /** |
| 166 | * Saves the current selector |
| 167 | * |
| 168 | * @var string |
| 169 | * @access private |
| 170 | */ |
| 171 | public $selector = ''; |
| 172 | /** |
| 173 | * Saves the current property |
| 174 | * |
| 175 | * @var string |
| 176 | * @access private |
| 177 | */ |
| 178 | public $property = ''; |
| 179 | /** |
| 180 | * Saves the position of , in selectors |
| 181 | * |
| 182 | * @var array |
| 183 | * @access private |
| 184 | */ |
| 185 | public $sel_separate = array(); |
| 186 | /** |
| 187 | * Saves the current value |
| 188 | * |
| 189 | * @var string |
| 190 | * @access private |
| 191 | */ |
| 192 | public $value = ''; |
| 193 | /** |
| 194 | * Saves the current sub-value |
| 195 | * |
| 196 | * Example for a subvalue: |
| 197 | * background:url(foo.png) red no-repeat; |
| 198 | * "url(foo.png)", "red", and "no-repeat" are subvalues, |
| 199 | * separated by whitespace |
| 200 | * |
| 201 | * @var string |
| 202 | * @access private |
| 203 | */ |
| 204 | public $sub_value = ''; |
| 205 | /** |
| 206 | * Array which saves all subvalues for a property. |
| 207 | * |
| 208 | * @var array |
| 209 | * @see sub_value |
| 210 | * @access private |
| 211 | */ |
| 212 | public $sub_value_arr = array(); |
| 213 | /** |
| 214 | * Saves the stack of characters that opened the current strings |
| 215 | * |
| 216 | * @var array |
| 217 | * @access private |
| 218 | */ |
| 219 | public $str_char = array(); |
| 220 | /** |
| 221 | * Current strings. |
| 222 | * |
| 223 | * @var array |
| 224 | * @access private |
| 225 | */ |
| 226 | public $cur_string = array(); |
| 227 | /** |
| 228 | * Status from which the parser switched to ic or instr |
| 229 | * |
| 230 | * @var array |
| 231 | * @access private |
| 232 | */ |
| 233 | public $from = array(); |
| 234 | /** |
| 235 | /** |
| 236 | * =true if in invalid at-rule |
| 237 | * |
| 238 | * @var bool |
| 239 | * @access private |
| 240 | */ |
| 241 | public $invalid_at = false; |
| 242 | /** |
| 243 | * =true if something has been added to the current selector |
| 244 | * |
| 245 | * @var bool |
| 246 | * @access private |
| 247 | */ |
| 248 | public $added = false; |
| 249 | /** |
| 250 | * Array which saves the message log |
| 251 | * |
| 252 | * @var array |
| 253 | * @access private |
| 254 | */ |
| 255 | public $log = array(); |
| 256 | /** |
| 257 | * Saves the line number |
| 258 | * |
| 259 | * @var integer |
| 260 | * @access private |
| 261 | */ |
| 262 | public $line = 1; |
| 263 | /** |
| 264 | * Marks if we need to leave quotes for a string |
| 265 | * |
| 266 | * @var array |
| 267 | * @access private |
| 268 | */ |
| 269 | public $quoted_string = array(); |
| 270 | |
| 271 | /** |
| 272 | * List of tokens |
| 273 | * |
| 274 | * @var string |
| 275 | */ |
| 276 | public $tokens_list = ''; |
| 277 | |
| 278 | /** |
| 279 | * Loads standard template and sets default settings. |
| 280 | * |
| 281 | * @access private |
| 282 | * @version 1.3 |
| 283 | */ |
| 284 | public function __construct() { |
| 285 | $this->settings['remove_bslash'] = true; |
| 286 | $this->settings['compress_colors'] = true; |
| 287 | $this->settings['compress_font-weight'] = true; |
| 288 | $this->settings['lowercase_s'] = false; |
| 289 | |
| 290 | /* |
| 291 | 1 common shorthands optimization |
| 292 | 2 + font property optimization |
| 293 | 3 + background property optimization |
| 294 | */ |
| 295 | $this->settings['optimise_shorthands'] = 1; |
| 296 | $this->settings['remove_last_;'] = true; |
| 297 | /* rewrite all properties with low case, better for later gzip OK, safe*/ |
| 298 | $this->settings['case_properties'] = 1; |
| 299 | |
| 300 | /* |
| 301 | * sort properties in alpabetic order, better for later gzip |
| 302 | * but can cause trouble in case of overiding same propertie or using hack |
| 303 | */ |
| 304 | $this->settings['sort_properties'] = false; |
| 305 | |
| 306 | /* |
| 307 | 1, 3, 5, etc -- enable sorting selectors inside @media: a{}b{}c{} |
| 308 | 2, 5, 8, etc -- enable sorting selectors inside one CSS declaration: a,b,c{} |
| 309 | preserve order by default cause it can break functionnality |
| 310 | */ |
| 311 | $this->settings['sort_selectors'] = 0; |
| 312 | /* is dangeroues to be used: CSS is broken sometimes */ |
| 313 | $this->settings['merge_selectors'] = 0; |
| 314 | /* preserve or not browser hacks */ |
| 315 | $this->settings['discard_invalid_selectors'] = false; |
| 316 | $this->settings['discard_invalid_properties'] = false; |
| 317 | $this->settings['css_level'] = 'CSS2.1'; |
| 318 | $this->settings['preserve_css'] = false; |
| 319 | $this->settings['timestamp'] = false; |
| 320 | $this->settings['template'] = ''; // say that propertie exist. |
| 321 | $this->set_cfg( 'template', 'default' ); // call load_template. |
| 322 | /* Tells csstidy_optimise to keep leading zeros on decimal numbers, e.g., 0.7 */ |
| 323 | $this->settings['preserve_leading_zeros'] = false; |
| 324 | $this->optimise = new csstidy_optimise( $this ); |
| 325 | |
| 326 | $this->tokens_list = & $GLOBALS['csstidy']['tokens']; |
| 327 | } |
| 328 | |
| 329 | /** |
| 330 | * Call the construct function. |
| 331 | */ |
| 332 | public function csstidy() { |
| 333 | $this->__construct(); |
| 334 | } |
| 335 | |
| 336 | /** |
| 337 | * Get the value of a setting. |
| 338 | * |
| 339 | * @param string $setting - the settings. |
| 340 | * @access public |
| 341 | * @return mixed |
| 342 | * @version 1.0 |
| 343 | */ |
| 344 | public function get_cfg( $setting ) { |
| 345 | if ( isset( $this->settings[ $setting ] ) ) { |
| 346 | return $this->settings[ $setting ]; |
| 347 | } |
| 348 | return false; |
| 349 | } |
| 350 | |
| 351 | /** |
| 352 | * Load a template |
| 353 | * |
| 354 | * @param string $template used by set_cfg to load a template via a configuration setting. |
| 355 | * @access private |
| 356 | * @version 1.4 |
| 357 | */ |
| 358 | public function _load_template( $template ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore |
| 359 | switch ( $template ) { |
| 360 | case 'default': |
| 361 | $this->load_template( 'default' ); |
| 362 | break; |
| 363 | |
| 364 | case 'highest': |
| 365 | $this->load_template( 'highest_compression' ); |
| 366 | break; |
| 367 | |
| 368 | case 'high': |
| 369 | $this->load_template( 'high_compression' ); |
| 370 | break; |
| 371 | |
| 372 | case 'low': |
| 373 | $this->load_template( 'low_compression' ); |
| 374 | break; |
| 375 | |
| 376 | default: |
| 377 | $this->load_template( $template ); |
| 378 | break; |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | /** |
| 383 | * Set the value of a setting. |
| 384 | * |
| 385 | * @param string $setting - the setting. |
| 386 | * @param mixed $value - the value we're setting. |
| 387 | * @access public |
| 388 | * @return bool |
| 389 | * @version 1.0 |
| 390 | */ |
| 391 | public function set_cfg( $setting, $value = null ) { |
| 392 | if ( is_array( $setting ) && null === $value ) { |
| 393 | foreach ( $setting as $setprop => $setval ) { |
| 394 | $this->settings[ $setprop ] = $setval; |
| 395 | } |
| 396 | if ( array_key_exists( 'template', $setting ) ) { |
| 397 | $this->_load_template( $this->settings['template'] ); |
| 398 | } |
| 399 | return true; |
| 400 | } elseif ( isset( $this->settings[ $setting ] ) && '' !== $value ) { |
| 401 | $this->settings[ $setting ] = $value; |
| 402 | if ( 'template' === $setting ) { |
| 403 | $this->_load_template( $this->settings['template'] ); |
| 404 | } |
| 405 | return true; |
| 406 | } |
| 407 | return false; |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * Adds a token to $this->tokens |
| 412 | * |
| 413 | * @param mixed $type - the type. |
| 414 | * @param string $data - data. |
| 415 | * @param bool $do add a token even if preserve_css is off. |
| 416 | * @access private |
| 417 | * @version 1.0 |
| 418 | */ |
| 419 | public function _add_token( $type, $data, $do = false ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore |
| 420 | if ( $this->get_cfg( 'preserve_css' ) || $do ) { |
| 421 | $this->tokens[] = array( $type, ( COMMENT === $type ) ? $data : trim( $data ) ); |
| 422 | } |
| 423 | } |
| 424 | |
| 425 | /** |
| 426 | * Add a message to the message log |
| 427 | * |
| 428 | * @param string $message - the message. |
| 429 | * @param string $type - the type of message. |
| 430 | * @param integer $line - the line. |
| 431 | * @access private |
| 432 | * @version 1.0 |
| 433 | */ |
| 434 | public function log( $message, $type, $line = -1 ) { |
| 435 | if ( -1 === $line ) { |
| 436 | $line = $this->line; |
| 437 | } |
| 438 | $line = (int) $line; |
| 439 | $add = array( |
| 440 | 'm' => $message, |
| 441 | 't' => $type, |
| 442 | ); |
| 443 | if ( ! isset( $this->log[ $line ] ) || ! in_array( $add, $this->log[ $line ], true ) ) { |
| 444 | $this->log[ $line ][] = $add; |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | /** |
| 449 | * Parse unicode notations and find a replacement character |
| 450 | * |
| 451 | * @param string $string - a string. |
| 452 | * @param integer $i - counting integer. |
| 453 | * @access private |
| 454 | * @return string |
| 455 | * @version 1.2 |
| 456 | */ |
| 457 | public function _unicode( &$string, &$i ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore |
| 458 | ++$i; |
| 459 | $add = ''; |
| 460 | $replaced = false; |
| 461 | |
| 462 | while ( $i < strlen( $string ) && ( ctype_xdigit( $string[ $i ] ) || ctype_space( $string[ $i ] ) ) && strlen( $add ) < 6 ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found |
| 463 | $add .= $string[ $i ]; |
| 464 | |
| 465 | if ( ctype_space( $string[ $i ] ) ) { |
| 466 | break; |
| 467 | } |
| 468 | ++$i; |
| 469 | } |
| 470 | |
| 471 | if ( hexdec( $add ) > 47 && hexdec( $add ) < 58 || hexdec( $add ) > 64 && hexdec( $add ) < 91 || hexdec( $add ) > 96 && hexdec( $add ) < 123 ) { |
| 472 | $this->log( 'Replaced unicode notation: Changed \\' . $add . ' to ' . chr( hexdec( $add ) ), 'Information' ); |
| 473 | $add = chr( hexdec( $add ) ); |
| 474 | $replaced = true; |
| 475 | } else { |
| 476 | $add = trim( '\\' . $add ); |
| 477 | } |
| 478 | |
| 479 | if ( @ctype_xdigit( $string[ $i + 1 ] ) && ctype_space( $string[ $i ] ) |
| 480 | && ! $replaced || ! ctype_space( $string[ $i ] ) ) { |
| 481 | --$i; |
| 482 | } |
| 483 | |
| 484 | if ( '\\' !== $add || ! $this->get_cfg( 'remove_bslash' ) || strpos( $this->tokens_list, $string[ $i + 1 ] ) !== false ) { |
| 485 | return $add; |
| 486 | } |
| 487 | |
| 488 | if ( '\\' === $add ) { |
| 489 | $this->log( 'Removed unnecessary backslash', 'Information' ); |
| 490 | } |
| 491 | return ''; |
| 492 | } |
| 493 | |
| 494 | /** |
| 495 | * Write formatted output to a file |
| 496 | * |
| 497 | * @param string $filename - the file na,e. |
| 498 | * @param string $doctype when printing formatted, is a shorthand for the document type. |
| 499 | * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet. |
| 500 | * @param string $title when printing formatted, is the title to be added in the head of the document. |
| 501 | * @param string $lang when printing formatted, gives a two-letter language code to be added to the output. |
| 502 | * @access public |
| 503 | * @version 1.4 |
| 504 | */ |
| 505 | public function write_page( $filename, $doctype = 'xhtml1.1', $externalcss = true, $title = '', $lang = 'en' ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 506 | $this->write( $filename, true ); |
| 507 | } |
| 508 | |
| 509 | /** |
| 510 | * Write plain output to a file |
| 511 | * |
| 512 | * @param string $filename the file name. |
| 513 | * @param bool $formatted whether to print formatted or not. |
| 514 | * @param string $doctype when printing formatted, is a shorthand for the document type. |
| 515 | * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet. |
| 516 | * @param string $title when printing formatted, is the title to be added in the head of the document. |
| 517 | * @param string $lang when printing formatted, gives a two-letter language code to be added to the output. |
| 518 | * @param bool $pre_code whether to add pre and code tags around the code (for light HTML formatted templates). |
| 519 | * @access public |
| 520 | * @version 1.4 |
| 521 | */ |
| 522 | public function write( $filename, $formatted = false, $doctype = 'xhtml1.1', $externalcss = true, $title = '', $lang = 'en', $pre_code = true ) { |
| 523 | $filename .= ( $formatted ) ? '.xhtml' : '.css'; |
| 524 | |
| 525 | if ( ! is_dir( 'temp' ) ) { |
| 526 | $madedir = mkdir( 'temp' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_mkdir |
| 527 | if ( ! $madedir ) { |
| 528 | print 'Could not make directory "temp" in ' . __DIR__; |
| 529 | exit; |
| 530 | } |
| 531 | } |
| 532 | $handle = fopen( 'temp/' . $filename, 'w' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_fopen |
| 533 | if ( $handle ) { |
| 534 | if ( ! $formatted ) { |
| 535 | fwrite( $handle, $this->print->plain() ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_fwrite |
| 536 | } else { |
| 537 | fwrite( $handle, $this->print->formatted_page( $doctype, $externalcss, $title, $lang, $pre_code ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_fwrite |
| 538 | } |
| 539 | } |
| 540 | fclose( $handle ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_operations_fclose |
| 541 | } |
| 542 | |
| 543 | /** |
| 544 | * Loads a new template |
| 545 | * |
| 546 | * @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default". |
| 547 | * @param bool $from_file uses $content as filename if true. |
| 548 | * @access public |
| 549 | * @version 1.1 |
| 550 | * @see http://csstidy.sourceforge.net/templates.php |
| 551 | */ |
| 552 | public function load_template( $content, $from_file = true ) { |
| 553 | $predefined_templates = & $GLOBALS['csstidy']['predefined_templates']; |
| 554 | if ( 'high_compression' === $content || 'default' === $content || 'highest_compression' === $content || 'low_compression' === $content ) { |
| 555 | $this->template = $predefined_templates[ $content ]; |
| 556 | return; |
| 557 | } |
| 558 | |
| 559 | if ( $from_file ) { |
| 560 | $content = strip_tags( file_get_contents( $content ), '<span>' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents |
| 561 | } |
| 562 | $content = str_replace( "\r\n", "\n", $content ); // Unify newlines (because the output also only uses \n). |
| 563 | $template = explode( '|', $content ); |
| 564 | |
| 565 | $this->template = array_replace( $this->template, $template ); |
| 566 | } |
| 567 | |
| 568 | /** |
| 569 | * Starts parsing from URL |
| 570 | * |
| 571 | * @param string $url - the URL. |
| 572 | * @access public |
| 573 | * @version 1.0 |
| 574 | */ |
| 575 | public function parse_from_url( $url ) { |
| 576 | return $this->parse( @file_get_contents( $url ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents |
| 577 | } |
| 578 | |
| 579 | /** |
| 580 | * Checks if there is a token at the current position |
| 581 | * |
| 582 | * @param string $string - the string we're checking. |
| 583 | * @param integer $i - an int. |
| 584 | * @access public |
| 585 | * @version 1.11 |
| 586 | */ |
| 587 | public function is_token( &$string, $i ) { |
| 588 | return ( strpos( $this->tokens_list, $string[ $i ] ) !== false && ! self::escaped( $string, $i ) ); |
| 589 | } |
| 590 | |
| 591 | /** |
| 592 | * Parses CSS in $string. The code is saved as array in $this->css |
| 593 | * |
| 594 | * @param string $string the CSS code. |
| 595 | * @access public |
| 596 | * @return bool |
| 597 | * @version 1.1 |
| 598 | */ |
| 599 | public function parse( $string ) { |
| 600 | // Temporarily set locale to en_US in order to handle floats properly. |
| 601 | $old = @setlocale( LC_ALL, 0 ); |
| 602 | @setlocale( LC_ALL, 'C' ); |
| 603 | |
| 604 | // PHP bug? Settings need to be refreshed in PHP4. |
| 605 | $this->print = new csstidy_print( $this ); |
| 606 | |
| 607 | $at_rules = & $GLOBALS['csstidy']['at_rules']; |
| 608 | $quoted_string_properties = & $GLOBALS['csstidy']['quoted_string_properties']; |
| 609 | |
| 610 | $this->css = array(); |
| 611 | $this->print->input_css = $string; |
| 612 | $string = str_replace( "\r\n", "\n", $string ) . ' '; |
| 613 | $cur_comment = ''; |
| 614 | |
| 615 | for ( $i = 0, $size = strlen( $string ); $i < $size; $i++ ) { |
| 616 | if ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) { |
| 617 | ++$this->line; |
| 618 | } |
| 619 | |
| 620 | switch ( $this->status ) { |
| 621 | /* Case in at-block */ |
| 622 | case 'at': |
| 623 | if ( self::is_token( $string, $i ) ) { |
| 624 | if ( '/' === $string[ $i ] && '*' === @$string[ $i + 1 ] ) { |
| 625 | $this->status = 'ic'; |
| 626 | ++$i; |
| 627 | $this->from[] = 'at'; |
| 628 | } elseif ( '{' === $string[ $i ] ) { |
| 629 | $this->status = 'is'; |
| 630 | $this->at = $this->css_new_media_section( $this->at ); |
| 631 | $this->_add_token( AT_START, $this->at ); |
| 632 | } elseif ( ',' === $string[ $i ] ) { |
| 633 | $this->at = trim( $this->at ) . ','; |
| 634 | } elseif ( '\\' === $string[ $i ] ) { |
| 635 | $this->at .= $this->_unicode( $string, $i ); |
| 636 | } elseif ( in_array( $string[ $i ], array( '(', ')', ':', '.', '/' ), true ) ) { |
| 637 | // fix for complicated media, i.e @media screen and (-webkit-min-device-pixel-ratio:1.5) |
| 638 | // '/' is included for ratios in Opera: (-o-min-device-pixel-ratio: 3/2). |
| 639 | $this->at .= $string[ $i ]; |
| 640 | } |
| 641 | } else { |
| 642 | $lastpos = strlen( $this->at ) - 1; |
| 643 | if ( ! ( ( ctype_space( $this->at[ $lastpos ] ) || self::is_token( $this->at, $lastpos ) && ',' === $this->at[ $lastpos ] ) && ctype_space( $string[ $i ] ) ) ) { |
| 644 | $this->at .= $string[ $i ]; |
| 645 | } |
| 646 | } |
| 647 | break; |
| 648 | |
| 649 | /* Case in-selector */ |
| 650 | case 'is': |
| 651 | if ( self::is_token( $string, $i ) ) { |
| 652 | if ( '/' === $string[ $i ] && '*' === @$string[ $i + 1 ] && '' === trim( $this->selector ) ) { |
| 653 | $this->status = 'ic'; |
| 654 | ++$i; |
| 655 | $this->from[] = 'is'; |
| 656 | } elseif ( '@' === $string[ $i ] && '' === trim( $this->selector ) ) { |
| 657 | // Check for at-rule. |
| 658 | $this->invalid_at = true; |
| 659 | foreach ( $at_rules as $name => $type ) { |
| 660 | if ( ! strcasecmp( substr( $string, $i + 1, strlen( $name ) ), $name ) ) { |
| 661 | ( 'at' === $type ) ? $this->at = '@' . $name : $this->selector = '@' . $name; |
| 662 | $this->status = $type; |
| 663 | $i += strlen( $name ); |
| 664 | $this->invalid_at = false; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | if ( $this->invalid_at ) { |
| 669 | $this->selector = '@'; |
| 670 | $invalid_at_name = ''; |
| 671 | for ( $j = $i + 1; $j < $size; ++$j ) { |
| 672 | if ( ! ctype_alpha( $string[ $j ] ) ) { |
| 673 | break; |
| 674 | } |
| 675 | $invalid_at_name .= $string[ $j ]; |
| 676 | } |
| 677 | $this->log( 'Invalid @-rule: ' . $invalid_at_name . ' (removed)', 'Warning' ); |
| 678 | } |
| 679 | } elseif ( ( '"' === $string[ $i ] || "'" === $string[ $i ] ) ) { |
| 680 | $this->cur_string[] = $string[ $i ]; |
| 681 | $this->status = 'instr'; |
| 682 | $this->str_char[] = $string[ $i ]; |
| 683 | $this->from[] = 'is'; |
| 684 | /* fixing CSS3 attribute selectors, i.e. a[href$=".mp3" */ |
| 685 | $this->quoted_string[] = ( '=' === $string[ $i - 1 ] ); |
| 686 | } elseif ( $this->invalid_at && ';' === $string[ $i ] ) { |
| 687 | $this->invalid_at = false; |
| 688 | $this->status = 'is'; |
| 689 | } elseif ( '{' === $string[ $i ] ) { |
| 690 | $this->status = 'ip'; |
| 691 | if ( '' === $this->at ) { |
| 692 | $this->at = $this->css_new_media_section( DEFAULT_AT ); |
| 693 | } |
| 694 | $this->selector = $this->css_new_selector( $this->at, $this->selector ); |
| 695 | $this->_add_token( SEL_START, $this->selector ); |
| 696 | $this->added = false; |
| 697 | } elseif ( '}' === $string[ $i ] ) { |
| 698 | $this->_add_token( AT_END, $this->at ); |
| 699 | $this->at = ''; |
| 700 | $this->selector = ''; |
| 701 | $this->sel_separate = array(); |
| 702 | } elseif ( ',' === $string[ $i ] ) { |
| 703 | $this->selector = trim( $this->selector ) . ','; |
| 704 | $this->sel_separate[] = strlen( $this->selector ); |
| 705 | } elseif ( '\\' === $string[ $i ] ) { |
| 706 | $this->selector .= $this->_unicode( $string, $i ); |
| 707 | } elseif ( '*' === $string[ $i ] && @in_array( $string[ $i + 1 ], array( '.', '#', '[', ':' ), true ) ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedElseif |
| 708 | // remove unnecessary universal selector, FS#147. |
| 709 | } else { |
| 710 | $this->selector .= $string[ $i ]; |
| 711 | } |
| 712 | } else { |
| 713 | $lastpos = strlen( $this->selector ) - 1; |
| 714 | if ( -1 === $lastpos || ! ( ( ctype_space( $this->selector[ $lastpos ] ) || self::is_token( $this->selector, $lastpos ) && ',' === $this->selector[ $lastpos ] ) && ctype_space( $string[ $i ] ) ) ) { |
| 715 | $this->selector .= $string[ $i ]; |
| 716 | } elseif ( ctype_space( $string[ $i ] ) && $this->get_cfg( 'preserve_css' ) && ! $this->get_cfg( 'merge_selectors' ) ) { |
| 717 | $this->selector .= $string[ $i ]; |
| 718 | } |
| 719 | } |
| 720 | break; |
| 721 | |
| 722 | /* Case in-property */ |
| 723 | case 'ip': |
| 724 | if ( self::is_token( $string, $i ) ) { |
| 725 | if ( ( ':' === $string[ $i ] || '=' === $string[ $i ] ) && '' !== $this->property ) { |
| 726 | $this->status = 'iv'; |
| 727 | if ( ! $this->get_cfg( 'discard_invalid_properties' ) || self::property_is_valid( $this->property ) ) { |
| 728 | $this->property = $this->css_new_property( $this->at, $this->selector, $this->property ); |
| 729 | $this->_add_token( PROPERTY, $this->property ); |
| 730 | } |
| 731 | } elseif ( '/' === $string[ $i ] && '*' === @$string[ $i + 1 ] && '' === $this->property ) { |
| 732 | $this->status = 'ic'; |
| 733 | ++$i; |
| 734 | $this->from[] = 'ip'; |
| 735 | } elseif ( '}' === $string[ $i ] ) { |
| 736 | $this->explode_selectors(); |
| 737 | $this->status = 'is'; |
| 738 | $this->invalid_at = false; |
| 739 | $this->_add_token( SEL_END, $this->selector ); |
| 740 | $this->selector = ''; |
| 741 | $this->property = ''; |
| 742 | } elseif ( ';' === $string[ $i ] ) { |
| 743 | $this->property = ''; |
| 744 | } elseif ( '\\' === $string[ $i ] ) { |
| 745 | $this->property .= $this->_unicode( $string, $i ); |
| 746 | } elseif ( '' === $this->property && ! ctype_space( $string[ $i ] ) ) { |
| 747 | // else this is dumb IE a hack, keep it. |
| 748 | $this->property .= $string[ $i ]; |
| 749 | } |
| 750 | } elseif ( ! ctype_space( $string[ $i ] ) ) { |
| 751 | $this->property .= $string[ $i ]; |
| 752 | } |
| 753 | break; |
| 754 | |
| 755 | /* Case in-value */ |
| 756 | case 'iv': |
| 757 | $pn = ( ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) && $this->property_is_next( $string, $i + 1 ) || strlen( $string ) - 1 === $i ); |
| 758 | if ( ( self::is_token( $string, $i ) || $pn ) && ( ! ( ',' === $string[ $i ] && ! ctype_space( $string[ $i + 1 ] ) ) ) ) { |
| 759 | if ( '/' === $string[ $i ] && '*' === @$string[ $i + 1 ] ) { |
| 760 | $this->status = 'ic'; |
| 761 | ++$i; |
| 762 | $this->from[] = 'iv'; |
| 763 | } elseif ( ( '"' === $string[ $i ] || "'" === $string[ $i ] || '(' === $string[ $i ] ) ) { |
| 764 | $this->cur_string[] = $string[ $i ]; |
| 765 | $this->str_char[] = ( '(' === $string[ $i ] ) ? ')' : $string[ $i ]; |
| 766 | $this->status = 'instr'; |
| 767 | $this->from[] = 'iv'; |
| 768 | $this->quoted_string[] = in_array( strtolower( $this->property ), $quoted_string_properties, true ); |
| 769 | } elseif ( ',' === $string[ $i ] ) { |
| 770 | $this->sub_value = trim( $this->sub_value ) . ','; |
| 771 | } elseif ( '\\' === $string[ $i ] ) { |
| 772 | $this->sub_value .= $this->_unicode( $string, $i ); |
| 773 | } elseif ( ';' === $string[ $i ] || $pn ) { |
| 774 | if ( '@' === $this->selector[0] && isset( $at_rules[ substr( $this->selector, 1 ) ] ) && 'iv' === $at_rules[ substr( $this->selector, 1 ) ] ) { |
| 775 | $this->status = 'is'; |
| 776 | |
| 777 | switch ( $this->selector ) { |
| 778 | case '@charset': |
| 779 | /* Add quotes to charset */ |
| 780 | $this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"'; |
| 781 | $this->charset = $this->sub_value_arr[0]; |
| 782 | break; |
| 783 | case '@namespace': |
| 784 | /* Add quotes to namespace */ |
| 785 | $this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"'; |
| 786 | $this->namespace = implode( ' ', $this->sub_value_arr ); |
| 787 | break; |
| 788 | case '@import': |
| 789 | $this->sub_value = trim( $this->sub_value ); |
| 790 | |
| 791 | if ( empty( $this->sub_value_arr ) ) { |
| 792 | // Quote URLs in imports only if they're not already inside url() and not already quoted. |
| 793 | if ( substr( $this->sub_value, 0, 4 ) !== 'url(' ) { |
| 794 | if ( ! ( substr( $this->sub_value, -1 ) === $this->sub_value[0] && in_array( $this->sub_value[0], array( "'", '"' ), true ) ) ) { |
| 795 | $this->sub_value = '"' . $this->sub_value . '"'; |
| 796 | } |
| 797 | } |
| 798 | } |
| 799 | |
| 800 | $this->sub_value_arr[] = $this->sub_value; |
| 801 | $this->import[] = implode( ' ', $this->sub_value_arr ); |
| 802 | break; |
| 803 | } |
| 804 | |
| 805 | $this->sub_value_arr = array(); |
| 806 | $this->sub_value = ''; |
| 807 | $this->selector = ''; |
| 808 | $this->sel_separate = array(); |
| 809 | } else { |
| 810 | $this->status = 'ip'; |
| 811 | } |
| 812 | } elseif ( '}' !== $string[ $i ] ) { |
| 813 | $this->sub_value .= $string[ $i ]; |
| 814 | } |
| 815 | if ( ( '}' === $string[ $i ] || ';' === $string[ $i ] || $pn ) && ! empty( $this->selector ) ) { |
| 816 | if ( '' === $this->at ) { |
| 817 | $this->at = $this->css_new_media_section( DEFAULT_AT ); |
| 818 | } |
| 819 | |
| 820 | // case settings. |
| 821 | if ( $this->get_cfg( 'lowercase_s' ) ) { |
| 822 | $this->selector = strtolower( $this->selector ); |
| 823 | } |
| 824 | $this->property = strtolower( $this->property ); |
| 825 | |
| 826 | $this->optimise->subvalue(); |
| 827 | if ( '' !== $this->sub_value ) { |
| 828 | if ( substr( $this->sub_value, 0, 6 ) === 'format' ) { |
| 829 | $format_strings = self::parse_string_list( substr( $this->sub_value, 7, -1 ) ); |
| 830 | if ( ! $format_strings ) { |
| 831 | $this->sub_value = ''; |
| 832 | } else { |
| 833 | $this->sub_value = 'format('; |
| 834 | |
| 835 | foreach ( $format_strings as $format_string ) { |
| 836 | $this->sub_value .= '"' . str_replace( '"', '\\"', $format_string ) . '",'; |
| 837 | } |
| 838 | |
| 839 | $this->sub_value = substr( $this->sub_value, 0, -1 ) . ')'; |
| 840 | } |
| 841 | } |
| 842 | if ( '' !== $this->sub_value ) { |
| 843 | $this->sub_value_arr[] = $this->sub_value; |
| 844 | } |
| 845 | $this->sub_value = ''; |
| 846 | } |
| 847 | |
| 848 | $this->value = array_shift( $this->sub_value_arr ); |
| 849 | while ( $this->sub_value_arr ) { |
| 850 | $this->value .= ' ' . array_shift( $this->sub_value_arr ); |
| 851 | } |
| 852 | |
| 853 | $this->optimise->value(); |
| 854 | |
| 855 | $valid = self::property_is_valid( $this->property ); |
| 856 | if ( ( ! $this->invalid_at || $this->get_cfg( 'preserve_css' ) ) && ( ! $this->get_cfg( 'discard_invalid_properties' ) || $valid ) ) { |
| 857 | $this->css_add_property( $this->at, $this->selector, $this->property, $this->value ); |
| 858 | $this->_add_token( VALUE, $this->value ); |
| 859 | $this->optimise->shorthands(); |
| 860 | } |
| 861 | if ( ! $valid ) { |
| 862 | if ( $this->get_cfg( 'discard_invalid_properties' ) ) { |
| 863 | $this->log( 'Removed invalid property: ' . $this->property, 'Warning' ); |
| 864 | } else { |
| 865 | $this->log( 'Invalid property in ' . strtoupper( $this->get_cfg( 'css_level' ) ) . ': ' . $this->property, 'Warning' ); |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | $this->property = ''; |
| 870 | $this->sub_value_arr = array(); |
| 871 | $this->value = ''; |
| 872 | } |
| 873 | if ( '}' === $string[ $i ] ) { |
| 874 | $this->explode_selectors(); |
| 875 | $this->_add_token( SEL_END, $this->selector ); |
| 876 | $this->status = 'is'; |
| 877 | $this->invalid_at = false; |
| 878 | $this->selector = ''; |
| 879 | } |
| 880 | } elseif ( ! $pn ) { |
| 881 | $this->sub_value .= $string[ $i ]; |
| 882 | |
| 883 | if ( ctype_space( $string[ $i ] ) || ',' === $string[ $i ] ) { |
| 884 | $this->optimise->subvalue(); |
| 885 | if ( '' !== $this->sub_value ) { |
| 886 | $this->sub_value_arr[] = $this->sub_value; |
| 887 | $this->sub_value = ''; |
| 888 | } |
| 889 | } |
| 890 | } |
| 891 | break; |
| 892 | |
| 893 | /* Case in string */ |
| 894 | case 'instr': |
| 895 | $_str_char = $this->str_char[ count( $this->str_char ) - 1 ]; |
| 896 | $_cur_string = $this->cur_string[ count( $this->cur_string ) - 1 ]; |
| 897 | $temp_add = $string[ $i ]; |
| 898 | |
| 899 | // Add another string to the stack. Strings can't be nested inside of quotes, only parentheses, but |
| 900 | // parentheticals can be nested more than once. |
| 901 | if ( ')' === $_str_char && ( '(' === $string[ $i ] || '"' === $string[ $i ] || '\'' === $string[ $i ] ) && ! self::escaped( $string, $i ) ) { |
| 902 | $this->cur_string[] = $string[ $i ]; |
| 903 | $this->str_char[] = $string[ $i ] === '(' ? ')' : $string[ $i ]; |
| 904 | $this->from[] = 'instr'; |
| 905 | $this->quoted_string[] = ! ( '(' === $string[ $i ] ); |
| 906 | continue 2; |
| 907 | } |
| 908 | |
| 909 | if ( ')' !== $_str_char && ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) && ! ( '\\' === $string[ $i - 1 ] && ! self::escaped( $string, $i - 1 ) ) ) { |
| 910 | $temp_add = '\\A'; |
| 911 | $this->log( 'Fixed incorrect newline in string', 'Warning' ); |
| 912 | } |
| 913 | |
| 914 | $_cur_string .= $temp_add; |
| 915 | |
| 916 | if ( $string[ $i ] === $_str_char && ! self::escaped( $string, $i ) ) { |
| 917 | $_quoted_string = array_pop( $this->quoted_string ); |
| 918 | |
| 919 | $this->status = array_pop( $this->from ); |
| 920 | |
| 921 | if ( ! preg_match( '|[' . implode( '', $GLOBALS['csstidy']['whitespace'] ) . ']|uis', $_cur_string ) && 'content' !== $this->property ) { |
| 922 | if ( ! $_quoted_string ) { |
| 923 | if ( ')' !== $_str_char ) { |
| 924 | // Convert properties like |
| 925 | // font-family: 'Arial'; |
| 926 | // to |
| 927 | // font-family: Arial; |
| 928 | // or |
| 929 | // url("abc") |
| 930 | // to |
| 931 | // url(abc). |
| 932 | $_cur_string = substr( $_cur_string, 1, -1 ); |
| 933 | } |
| 934 | } else { |
| 935 | $_quoted_string = false; |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | array_pop( $this->cur_string ); |
| 940 | array_pop( $this->str_char ); |
| 941 | |
| 942 | if ( ')' === $_str_char ) { |
| 943 | $_cur_string = '(' . trim( substr( $_cur_string, 1, -1 ) ) . ')'; |
| 944 | } |
| 945 | |
| 946 | if ( 'iv' === $this->status ) { |
| 947 | // phpcs:disable Squiz.PHP.CommentedOutCode.Found, Squiz.Commenting.BlockComment.NoNewLine |
| 948 | // WPCOM hack: prevents CSSTidy from removing spaces after commas inside |
| 949 | // declaration's values. |
| 950 | // For more information, see D74626-code. |
| 951 | /*if ( ! $_quoted_string ) { |
| 952 | if ( strpos( $_cur_string, ',' ) !== false ) { |
| 953 | // we can on only remove space next to ','. |
| 954 | $_cur_string = implode( ',', array_map( 'trim', explode( ',', $_cur_string ) ) ); |
| 955 | } |
| 956 | // and multiple spaces (too expensive). |
| 957 | if ( strpos( $_cur_string, ' ' ) !== false ) { |
| 958 | $_cur_string = preg_replace( ',\s+,', ' ', $_cur_string ); |
| 959 | } |
| 960 | }*/ |
| 961 | // phpcs:enable Squiz.PHP.CommentedOutCode.Found, Squiz.Commenting.BlockComment.NoNewLine |
| 962 | $this->sub_value .= $_cur_string; |
| 963 | } elseif ( 'is' === $this->status ) { |
| 964 | $this->selector .= $_cur_string; |
| 965 | } elseif ( 'instr' === $this->status ) { |
| 966 | $this->cur_string[ count( $this->cur_string ) - 1 ] .= $_cur_string; |
| 967 | } |
| 968 | } else { |
| 969 | $this->cur_string[ count( $this->cur_string ) - 1 ] = $_cur_string; |
| 970 | } |
| 971 | break; |
| 972 | |
| 973 | /* Case in-comment */ |
| 974 | case 'ic': |
| 975 | if ( '*' === $string[ $i ] && '/' === $string[ $i + 1 ] ) { |
| 976 | $this->status = array_pop( $this->from ); |
| 977 | ++$i; |
| 978 | $this->_add_token( COMMENT, $cur_comment ); |
| 979 | $cur_comment = ''; |
| 980 | } else { |
| 981 | $cur_comment .= $string[ $i ]; |
| 982 | } |
| 983 | break; |
| 984 | } |
| 985 | } |
| 986 | |
| 987 | $this->optimise->postparse(); |
| 988 | |
| 989 | $this->print->_reset(); |
| 990 | |
| 991 | @setlocale( LC_ALL, $old ); // Set locale back to original setting. |
| 992 | |
| 993 | return ! ( empty( $this->css ) && empty( $this->import ) && empty( $this->charset ) && empty( $this->tokens ) && empty( $this->namespace ) ); |
| 994 | } |
| 995 | |
| 996 | /** |
| 997 | * Explodes selectors |
| 998 | * |
| 999 | * @access private |
| 1000 | * @version 1.0 |
| 1001 | */ |
| 1002 | public function explode_selectors() { |
| 1003 | // Explode multiple selectors. |
| 1004 | if ( $this->get_cfg( 'merge_selectors' ) === 1 ) { |
| 1005 | $new_sels = array(); |
| 1006 | $lastpos = 0; |
| 1007 | $this->sel_separate[] = strlen( $this->selector ); |
| 1008 | foreach ( $this->sel_separate as $num => $pos ) { |
| 1009 | if ( count( $this->sel_separate ) - 1 === $num ) { |
| 1010 | ++$pos; |
| 1011 | } |
| 1012 | |
| 1013 | $new_sels[] = substr( $this->selector, $lastpos, $pos - $lastpos - 1 ); |
| 1014 | $lastpos = $pos; |
| 1015 | } |
| 1016 | |
| 1017 | if ( count( $new_sels ) > 1 ) { |
| 1018 | foreach ( $new_sels as $selector ) { |
| 1019 | if ( isset( $this->css[ $this->at ][ $this->selector ] ) ) { |
| 1020 | $this->merge_css_blocks( $this->at, $selector, $this->css[ $this->at ][ $this->selector ] ); |
| 1021 | } |
| 1022 | } |
| 1023 | unset( $this->css[ $this->at ][ $this->selector ] ); |
| 1024 | } |
| 1025 | } |
| 1026 | $this->sel_separate = array(); |
| 1027 | } |
| 1028 | |
| 1029 | /** |
| 1030 | * Checks if a character is escaped (and returns true if it is) |
| 1031 | * |
| 1032 | * @param string $string - the string. |
| 1033 | * @param integer $pos - the position. |
| 1034 | * @access public |
| 1035 | * @return bool |
| 1036 | * @version 1.02 |
| 1037 | */ |
| 1038 | public static function escaped( &$string, $pos ) { |
| 1039 | return ! ( @( '\\' !== $string[ $pos - 1 ] ) || self::escaped( $string, $pos - 1 ) ); |
| 1040 | } |
| 1041 | |
| 1042 | /** |
| 1043 | * Adds a property with value to the existing CSS code |
| 1044 | * |
| 1045 | * @param string $media - the media. |
| 1046 | * @param string $selector - the selector. |
| 1047 | * @param string $property - the property. |
| 1048 | * @param string $new_val - new value. |
| 1049 | * @access private |
| 1050 | * @version 1.2 |
| 1051 | */ |
| 1052 | public function css_add_property( $media, $selector, $property, $new_val ) { |
| 1053 | if ( $this->get_cfg( 'preserve_css' ) || '' === trim( $new_val ) ) { |
| 1054 | return; |
| 1055 | } |
| 1056 | |
| 1057 | $this->added = true; |
| 1058 | if ( isset( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1059 | if ( ( self::is_important( $this->css[ $media ][ $selector ][ $property ] ) && self::is_important( $new_val ) ) || ! self::is_important( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1060 | $this->css[ $media ][ $selector ][ $property ] = trim( $new_val ); |
| 1061 | } |
| 1062 | } else { |
| 1063 | $this->css[ $media ][ $selector ][ $property ] = trim( $new_val ); |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | /** |
| 1068 | * Start a new media section. |
| 1069 | * Check if the media is not already known, |
| 1070 | * else rename it with extra spaces |
| 1071 | * to avoid merging |
| 1072 | * |
| 1073 | * @param string $media - the media. |
| 1074 | * @return string |
| 1075 | */ |
| 1076 | public function css_new_media_section( $media ) { |
| 1077 | if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1078 | return $media; |
| 1079 | } |
| 1080 | |
| 1081 | // if the last @media is the same as this keep it. |
| 1082 | if ( ! $this->css || ! is_array( $this->css ) || empty( $this->css ) ) { |
| 1083 | return $media; |
| 1084 | } |
| 1085 | end( $this->css ); |
| 1086 | $at = current( $this->css ); |
| 1087 | if ( $at === $media ) { |
| 1088 | return $media; |
| 1089 | } |
| 1090 | while ( isset( $this->css[ $media ] ) ) { |
| 1091 | if ( is_numeric( $media ) ) { |
| 1092 | ++$media; |
| 1093 | } else { |
| 1094 | $media .= ' '; |
| 1095 | } |
| 1096 | } |
| 1097 | return $media; |
| 1098 | } |
| 1099 | |
| 1100 | /** |
| 1101 | * Start a new selector. |
| 1102 | * If already referenced in this media section, |
| 1103 | * rename it with extra space to avoid merging |
| 1104 | * except if merging is required, |
| 1105 | * or last selector is the same (merge siblings) |
| 1106 | * |
| 1107 | * Never merge @font-face |
| 1108 | * |
| 1109 | * @param string $media - the media. |
| 1110 | * @param string $selector - the selector. |
| 1111 | * @return string |
| 1112 | */ |
| 1113 | public function css_new_selector( $media, $selector ) { |
| 1114 | if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1115 | return $selector; |
| 1116 | } |
| 1117 | $selector = trim( $selector ); |
| 1118 | if ( strncmp( $selector, '@font-face', 10 ) !== 0 ) { |
| 1119 | if ( $this->settings['merge_selectors'] ) { |
| 1120 | return $selector; |
| 1121 | } |
| 1122 | |
| 1123 | if ( ! $this->css || ! isset( $this->css[ $media ] ) || ! $this->css[ $media ] ) { |
| 1124 | return $selector; |
| 1125 | } |
| 1126 | |
| 1127 | // if last is the same, keep it. |
| 1128 | end( $this->css[ $media ] ); |
| 1129 | $sel = current( $this->css[ $media ] ); |
| 1130 | if ( $sel === $selector ) { |
| 1131 | return $selector; |
| 1132 | } |
| 1133 | } |
| 1134 | |
| 1135 | while ( isset( $this->css[ $media ][ $selector ] ) ) { |
| 1136 | $selector .= ' '; |
| 1137 | } |
| 1138 | return $selector; |
| 1139 | } |
| 1140 | |
| 1141 | /** |
| 1142 | * Start a new propertie. |
| 1143 | * If already references in this selector, |
| 1144 | * rename it with extra space to avoid override |
| 1145 | * |
| 1146 | * @param string $media - the media. |
| 1147 | * @param string $selector - the selector. |
| 1148 | * @param string $property - the property. |
| 1149 | * @return string |
| 1150 | */ |
| 1151 | public function css_new_property( $media, $selector, $property ) { |
| 1152 | if ( $this->get_cfg( 'preserve_css' ) ) { |
| 1153 | return $property; |
| 1154 | } |
| 1155 | if ( ! $this->css || ! isset( $this->css[ $media ][ $selector ] ) || ! $this->css[ $media ][ $selector ] ) { |
| 1156 | return $property; |
| 1157 | } |
| 1158 | |
| 1159 | while ( isset( $this->css[ $media ][ $selector ][ $property ] ) ) { |
| 1160 | $property .= ' '; |
| 1161 | } |
| 1162 | |
| 1163 | return $property; |
| 1164 | } |
| 1165 | |
| 1166 | /** |
| 1167 | * Adds CSS to an existing media/selector |
| 1168 | * |
| 1169 | * @param string $media - the media. |
| 1170 | * @param string $selector - the selector. |
| 1171 | * @param array $css_add - css being added. |
| 1172 | * @access private |
| 1173 | * @version 1.1 |
| 1174 | */ |
| 1175 | public function merge_css_blocks( $media, $selector, $css_add ) { |
| 1176 | foreach ( $css_add as $property => $value ) { |
| 1177 | $this->css_add_property( $media, $selector, $property, $value ); |
| 1178 | } |
| 1179 | } |
| 1180 | |
| 1181 | /** |
| 1182 | * Checks if $value is !important. |
| 1183 | * |
| 1184 | * @param string $value - the value. |
| 1185 | * @return bool |
| 1186 | * @access public |
| 1187 | * @version 1.0 |
| 1188 | */ |
| 1189 | public static function is_important( &$value ) { |
| 1190 | return ( ! strcasecmp( substr( str_replace( $GLOBALS['csstidy']['whitespace'], '', $value ), -10, 10 ), '!important' ) ); |
| 1191 | } |
| 1192 | |
| 1193 | /** |
| 1194 | * Returns a value without !important |
| 1195 | * |
| 1196 | * @param string $value - the value. |
| 1197 | * @return string |
| 1198 | * @access public |
| 1199 | * @version 1.0 |
| 1200 | */ |
| 1201 | public static function gvw_important( $value ) { |
| 1202 | if ( self::is_important( $value ) ) { |
| 1203 | $value = trim( $value ); |
| 1204 | $value = substr( $value, 0, -9 ); |
| 1205 | $value = trim( $value ); |
| 1206 | $value = substr( $value, 0, -1 ); |
| 1207 | $value = trim( $value ); |
| 1208 | return $value; |
| 1209 | } |
| 1210 | return $value; |
| 1211 | } |
| 1212 | |
| 1213 | /** |
| 1214 | * Checks if the next word in a string from pos is a CSS property |
| 1215 | * |
| 1216 | * @param string $istring - if it's a string. |
| 1217 | * @param integer $pos - position. |
| 1218 | * @return bool |
| 1219 | * @access private |
| 1220 | * @version 1.2 |
| 1221 | */ |
| 1222 | public function property_is_next( $istring, $pos ) { |
| 1223 | $all_properties = & $GLOBALS['csstidy']['all_properties']; |
| 1224 | $istring = substr( $istring, $pos, strlen( $istring ) - $pos ); |
| 1225 | $pos = strpos( $istring, ':' ); |
| 1226 | if ( false === $pos ) { |
| 1227 | return false; |
| 1228 | } |
| 1229 | $istring = strtolower( trim( substr( $istring, 0, $pos ) ) ); |
| 1230 | if ( isset( $all_properties[ $istring ] ) ) { |
| 1231 | $this->log( 'Added semicolon to the end of declaration', 'Warning' ); |
| 1232 | return true; |
| 1233 | } |
| 1234 | return false; |
| 1235 | } |
| 1236 | |
| 1237 | /** |
| 1238 | * Checks if a property is valid |
| 1239 | * |
| 1240 | * @param string $property - the property. |
| 1241 | * @return bool; |
| 1242 | * @access public |
| 1243 | * @version 1.0 |
| 1244 | */ |
| 1245 | public function property_is_valid( $property ) { |
| 1246 | $property = strtolower( $property ); |
| 1247 | if ( in_array( trim( $property ), $GLOBALS['csstidy']['multiple_properties'], true ) ) { |
| 1248 | $property = trim( $property ); |
| 1249 | } |
| 1250 | $all_properties = & $GLOBALS['csstidy']['all_properties']; |
| 1251 | return ( isset( $all_properties[ $property ] ) && strpos( $all_properties[ $property ], strtoupper( $this->get_cfg( 'css_level' ) ) ) !== false ); |
| 1252 | } |
| 1253 | |
| 1254 | /** |
| 1255 | * Accepts a list of strings (e.g., the argument to format() in a @font-face src property) |
| 1256 | * and returns a list of the strings. Converts things like: |
| 1257 | * |
| 1258 | * Format(abc) => format("abc") |
| 1259 | * format(abc def) => format("abc","def") |
| 1260 | * format(abc "def") => format("abc","def") |
| 1261 | * format(abc, def, ghi) => format("abc","def","ghi") |
| 1262 | * format("abc",'def') => format("abc","def") |
| 1263 | * format("abc, def, ghi") => format("abc, def, ghi") |
| 1264 | * |
| 1265 | * @param string $value - the value. |
| 1266 | * @return array |
| 1267 | */ |
| 1268 | public function parse_string_list( $value ) { |
| 1269 | $value = trim( $value ); |
| 1270 | |
| 1271 | // Case: if it's empty. |
| 1272 | if ( ! $value ) { |
| 1273 | return array(); |
| 1274 | } |
| 1275 | |
| 1276 | $strings = array(); |
| 1277 | |
| 1278 | $in_str = false; |
| 1279 | $current_string = ''; |
| 1280 | |
| 1281 | for ( $i = 0, $_len = strlen( $value ); $i < $_len; $i++ ) { |
| 1282 | if ( ( ',' === $value[ $i ] || ' ' === $value[ $i ] ) && true === $in_str ) { |
| 1283 | $in_str = false; |
| 1284 | $strings[] = $current_string; |
| 1285 | $current_string = ''; |
| 1286 | } elseif ( '"' === $value[ $i ] || "'" === $value[ $i ] ) { |
| 1287 | if ( $in_str === $value[ $i ] ) { |
| 1288 | $strings[] = $current_string; |
| 1289 | $in_str = false; |
| 1290 | $current_string = ''; |
| 1291 | continue; |
| 1292 | } elseif ( ! $in_str ) { |
| 1293 | $in_str = $value[ $i ]; |
| 1294 | } |
| 1295 | } elseif ( $in_str ) { |
| 1296 | $current_string .= $value[ $i ]; |
| 1297 | } elseif ( ! preg_match( '/[\s,]/', $value[ $i ] ) ) { |
| 1298 | $in_str = true; |
| 1299 | $current_string = $value[ $i ]; |
| 1300 | } |
| 1301 | } |
| 1302 | |
| 1303 | if ( $current_string ) { |
| 1304 | $strings[] = $current_string; |
| 1305 | } |
| 1306 | |
| 1307 | return $strings; |
| 1308 | } |
| 1309 | } |
| 1310 |