├── README.md
├── assets
└── snippets
│ └── cssjs
│ ├── .htaccess
│ ├── class.magic-min.php
│ ├── lessc.inc.php
│ ├── scss.inc.php
│ ├── snippet.css.php
│ └── snippet.js.php
└── install
└── assets
└── snippets
├── css.tpl
└── js.tpl
/README.md:
--------------------------------------------------------------------------------
1 | CcsJs-for-Evolution
2 | =====================
3 | Component CssJs for MODX Evolution
4 |
5 | Описание
6 | ----------
7 | Сниппеты основанны на компоненте MinifyX под MODX EVO, решат вопрос работы с файлами ститей и скриптов.
8 | - Обновление версии файла (основанной на дате последнего обновления)
9 | - Минификация файлов
10 | - Соединение всех файлов в 1.
11 |
12 |
13 | Установка
14 | ----------
15 | - Установить через Extras или PackageManager
16 | - Ручная установка: залить на сервер папку Assets, создать 2 сниппета js и css с кодом из файлов(istall/assets/snippets)
17 |
18 | Пример вызова
19 | ----------
20 |
21 |
22 | [!css? &files=`assets/templates/tpl/css/bootstrap.css,
23 | assets/js/prettify/prettify.css`
24 | &minify=`1`!]
25 |
26 | [!js? &files=`assets/js/jquery-1.8.3.min.js,
27 | assets/templates/tpl/js/modernizr.custom.28468.js,
28 | assets/js/jquery.validate.js,
29 | assets/js/jquery.form.min.js,
30 | assets/js/prettify/prettify.js`
31 | &minify=`1`!]
32 |
33 |
34 |
35 | Параметры сниппета
36 | -------
37 | - **files** Список файлов с CSS стилями, которые нужно включить в конечный файл и сжать
38 | - **minify** - сжимать и обьеденять файлик
39 | - **inhtml** - разместить сразу в HTML, в тегах
40 | - **folder** в какую папку сохранять сжатый файл. По умолчанию корень сайта
41 |
42 | TODO
43 | -------
44 | - Добавить обработку LESS
45 | - Добавить обработку SASS
46 | - Добавить обработку inline css и js
47 |
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/assets/snippets/cssjs/.htaccess:
--------------------------------------------------------------------------------
1 | IndexIgnore */*
2 |
3 | Order Deny,Allow
4 | Deny from all
5 |
6 |
--------------------------------------------------------------------------------
/assets/snippets/cssjs/class.magic-min.php:
--------------------------------------------------------------------------------
1 | minify( '[source filename]', '[output filename (optional)]', '[version (optional)]' ); ?>">
30 | **
31 | **
32 | ** Usage example for merge and minify:
33 | ** $min->merge( 'output filename and location', 'directory', 'type (js or css)', array( of items to exclude ) );
34 | ** $min->merge( 'js/one-file-merged.js', 'js', 'js', array( 'js/inline-edit.js', 'js/autogrow.js' ) );
35 | **
36 | ** Normalized output example using merge and minify:
37 | **
38 | **
39 | ** Adding gzip, base64 image encoding, or returning rather than echo:
40 | ** $vars = array(
41 | ** 'echo' => false,
42 | ** 'encode' => true,
43 | ** 'timer' => true,
44 | ** 'gzip' => true
45 | ** );
46 | ** $minified = new Minifier( $vars );
47 | **
48 | ** Using JShrink for js minification as opposed to google closure (default set to google closure)
49 | ** $vars = array(
50 | ** 'closure' => false,
51 | ** 'gzip' => true,
52 | ** 'encode' => true
53 | ** );
54 | ** $minified = new Minifier( $vars );
55 | **
56 | **------------------------------------------------------------------------------ */
57 |
58 | class Minifier {
59 |
60 | public $content;
61 | public $output_file;
62 | public $extension;
63 | private $type;
64 | private $directory;
65 | private $create_new;
66 | private $compilation;
67 | private $file;
68 | private $compressed;
69 | private $prequel;
70 | private $new_file;
71 | private $compiled;
72 | private $source;
73 | private $output;
74 | private $handle;
75 | //Max image size for inclusion
76 | const IMAGE_MAX_SIZE = 5;
77 | //For script execution time (src: http://bit.ly/18O3VWw)
78 | private $mtime;
79 | //Sum of output messages
80 | private $messages = array();
81 | //array of settings to add-to/adjust
82 | private $settings = array();
83 | //List of available config keys that can be set via init
84 | private $config_keys = array(
85 | 'echo' => false, //Return or echo the values
86 | 'encode' => false, //base64 images from CSS and include as part of the file?
87 | 'timer' => true, //Ouput script execution time
88 | 'gzip' => false, //Output as php with gzip?
89 | 'closure' => true, //Use google closure (utilizes cURL)
90 | 'remove_comments' => true // remove comments
91 | );
92 |
93 |
94 | /**
95 | * Construct function
96 | * @access public
97 | * @param array $vars
98 | * @return mixed
99 | */
100 | public function __construct( $vars = array() )
101 | {
102 | global $messages;
103 | $this->mtime = microtime( true );
104 | foreach( $this->config_keys as $key => $default )
105 | {
106 | if( isset( $vars[$key] ) )
107 | {
108 | $this->messages[]['Minifier Log'] = $key .': '. $vars[$key];
109 | $this->settings[$key] = $vars[$key];
110 | }
111 | else
112 | {
113 | $this->messages[]['Minifier Log'] = $key .': '. $default;
114 | $this->settings[$key] = $default;
115 | }
116 | }
117 |
118 | } //end __construct()
119 |
120 |
121 | /**
122 | * Private function to strip directory names from TOC output
123 | * Used for make_min()
124 | *
125 | * @access private
126 | * @param array $input
127 | * @return array $output
128 | */
129 | private function strip_directory( $input )
130 | {
131 | return basename( $input );
132 | }
133 |
134 |
135 | /**
136 | * Private function to determine if files are local or remote
137 | * Used for merge_images() and minify() to determine if filemtime can be used
138 | *
139 | * @access private
140 | * @param string $file
141 | * @return bool
142 | */
143 | private function remote_file( $file )
144 | {
145 | //It is a remote file
146 | if( preg_match( "/(http|https)/", $file ) )
147 | {
148 | return true;
149 | }
150 | //Local file
151 | else
152 | {
153 | return false;
154 | }
155 | }
156 |
157 |
158 | /**
159 | * Function to seek out and replace image references within CSS with base64_encoded data streams
160 | * Used in minify_contents function IF global for $this->encode
161 | * This function will retrieve the contents of local OR remote images, and is based on
162 | * Matthias Mullie 's function, "importFiles" from the JavaScript and CSS minifier
163 | * http://www.phpclasses.org/package/7519-PHP-Optimize-JavaScript-and-CSS-files.html
164 | *
165 | * @access private
166 | * @param string $source_file (used for location)
167 | * @param string $contents
168 | * @return string $updated_style
169 | */
170 | private function merge_images( $source_file, $contents )
171 | {
172 | global $messages;
173 |
174 | $this->directory = dirname( $source_file ) .'/';
175 |
176 | if( preg_match_all( '/url\((["\']?)((?!["\']?data:).*?\.(gif|png|jpg|jpeg))\\1\)/i', $contents, $this->matches, PREG_SET_ORDER ) )
177 | {
178 | $this->find = array();
179 | $this->replace = array();
180 |
181 | foreach( $this->matches as $this->graphic )
182 | {
183 |
184 | $this->extension = pathinfo( $this->graphic[2], PATHINFO_EXTENSION );
185 |
186 | $this->image_file = '';
187 |
188 | //See if the file is remote or local
189 | if( $this->remote_file( $this->graphic[2] ) )
190 | {
191 |
192 | //It's remote, and CURL is pretty fast
193 | $ch = curl_init();
194 | curl_setopt( $ch, CURLOPT_URL, $this->graphic[2] );
195 | curl_setopt( $ch, CURLOPT_NOBODY, 1 );
196 | curl_setopt( $ch, CURLOPT_FAILONERROR, 1 );
197 | curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1 );
198 |
199 | //And it WAS remote, and it DOES exist
200 | if( curl_exec( $ch ) !== FALSE )
201 | {
202 |
203 | //Get the image file
204 | $cd = curl_init( $this->graphic[2] );
205 | curl_setopt( $cd, CURLOPT_HEADER, 0 );
206 | curl_setopt( $cd, CURLOPT_RETURNTRANSFER, 1 );
207 | curl_setopt( $cd, CURLOPT_BINARYTRANSFER, 1 );
208 | $this->image_file = curl_exec( $cd );
209 | //Get the remote filesize
210 | $this->filesize = curl_getinfo( $cd, CURLINFO_CONTENT_LENGTH_DOWNLOAD );
211 | curl_close( $cd );
212 |
213 | if( $this->filesize <= Minifier::IMAGE_MAX_SIZE * 1024 )
214 | {
215 | //Assign the find and replace
216 | $this->find[] = $this->graphic[0];
217 | $this->replace[] = 'url(data:'.$this->extension.';base64,'.base64_encode( $this->image_file ).')';
218 | }
219 |
220 | } //End file exists
221 | curl_close( $ch );
222 |
223 | } //End remote file
224 |
225 | elseif( file_exists( $this->directory . $this->graphic[2] ) )
226 | {
227 | //File DOES exist locally, get the contents
228 |
229 | //Check the filesize
230 | $this->filesize = filesize( $this->directory . $this->graphic[2] );
231 |
232 | if( $this->filesize <= Minifier::IMAGE_MAX_SIZE * 1024 )
233 | {
234 | //File is within the filesize requirements so add it
235 | $this->image_file = file_get_contents( $this->directory . $this->graphic[2] );
236 |
237 | //Assign the find and replace
238 | $this->find[] = $this->graphic[0];
239 | $this->replace[] = 'url(data:'.$this->extension.';base64,'.base64_encode( $this->image_file ).')';
240 | }
241 |
242 | } //End local file
243 |
244 | }
245 |
246 | //Log the number of replacements to the console
247 | $this->messages[]['Minifier Log: merge_images'] = count( $this->replace ) .' files base64_encoded into ' . $source_file;
248 |
249 | //Find and replace all the images with the base64 data
250 | $this->updated_style = str_replace( $this->find, $this->replace, $contents );
251 |
252 | return $this->updated_style;
253 |
254 | } //End if( regex for images)
255 | else
256 | {
257 | //No images found in the sheet, just return the contents
258 | return $contents;
259 | }
260 |
261 | } //end merge_images()
262 |
263 |
264 | /**
265 | * Private function to handle minification of file contents
266 | * Supports CSS and JS files
267 | *
268 | * @access private
269 | * @param string $src_file
270 | * @param bool $run_minification (default true)
271 | * @return string $content
272 | */
273 | private function minify_contents( $src_file, $run_minification = true )
274 | {
275 | global $messages;
276 |
277 | $this->source = @file_get_contents( $src_file );
278 |
279 | //Log the error and continue if we can't get the file contents
280 | if( !$this->source )
281 | {
282 | $this->messages[]['Minifier ERROR'] = 'Unable to retrieve the contents of '. $src_file . '. Skipping at '. __LINE__ .' in '. basename( __FILE__ );
283 |
284 | //This will cause potential js errors, but allow the script to continue processing while notifying the user via console
285 | $this->source = '';
286 | }
287 |
288 | $this->type = strtolower( pathinfo( $src_file, PATHINFO_EXTENSION ) );
289 |
290 | $this->output = '';
291 |
292 | /**
293 | * If the filename indicates that the contents are already minified, we'll just return the contents
294 | * If the switch is flipped (useful for loading things such as jquery via google cdn)
295 | */
296 | if( preg_match( '/\.min\./i', $src_file ) || $run_minification === false )
297 | {
298 | return $this->source;
299 | }
300 | else
301 | {
302 | if( !empty( $this->type ) && $this->type == 'css' )
303 | {
304 | $this->content = $this->source;
305 | //If the param is set to merge images into the css before minifying...
306 | if( $this->settings['encode'] )
307 | {
308 | $this->content = $this->merge_images( $src_file, $this->content );
309 | }
310 |
311 | /* remove comments */
312 | if( $this->settings['remove_comments'] )
313 | {
314 | $this->content = preg_replace( '!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $this->content );
315 | }
316 |
317 | /* remove tabs, spaces, newlines, etc. */
318 | $this->content = preg_replace( '/(\s\s+|\t|\n)/', ' ', $this->content );
319 | /* remove other spaces before/after ; */
320 | $this->content = preg_replace( array('(( )+{)','({( )+)'), '{', $this->content );
321 | $this->content = preg_replace( array('(( )+})','(}( )+)','(;( )*})'), '}', $this->content );
322 | $this->content = preg_replace( array('(;( )+)','(( )+;)'), ';', $this->content );
323 |
324 | } //end $this->type == 'css'
325 |
326 | if( !empty( $this->type ) && $this->type == 'js' )
327 | {
328 | $this->content = $this->source;
329 |
330 | /**
331 | * Migrated preg_replace and str_replace custom minification to use google closure API
332 | * OR jsMin on 15-Jun-2013 due to js minification irregularities with most regex's:
333 | * https://github.com/tedivm/JShrink
334 | * https://developers.google.com/closure/compiler/
335 | * Accomodates lack of local file for JShrink by getting contents from github
336 | * and writing to a local file for the class (just in case)
337 | * If bool is passed for 'closure' => true during class initiation, cURL request processes
338 | */
339 | if( $this->settings['closure'] )
340 | {
341 |
342 | //Build the data array
343 | $data = array(
344 | 'compilation_level' => 'SIMPLE_OPTIMIZATIONS',
345 | 'output_format' => 'text',
346 | 'output_info' => 'compiled_code',
347 | 'js_code' => urlencode( $this->content )
348 | );
349 |
350 | //Compile it into a post compatible format
351 | $fields_string = '';
352 | foreach( $data as $key => $value )
353 | {
354 | $fields_string .= $key . '=' . $value . '&';
355 | }
356 | rtrim( $fields_string, '&' );
357 |
358 | //Initiate and execute the curl request
359 | $h = curl_init();
360 | curl_setopt( $h, CURLOPT_URL, 'http://closure-compiler.appspot.com/compile' );
361 | curl_setopt( $h, CURLOPT_POST, true );
362 | curl_setopt( $h, CURLOPT_POSTFIELDS, $fields_string );
363 | curl_setopt( $h, CURLOPT_HEADER, false );
364 | curl_setopt( $h, CURLOPT_RETURNTRANSFER, 1 );
365 | $result = curl_exec( $h );
366 | $this->content = $result;
367 |
368 | //close connection
369 | curl_close( $h );
370 |
371 | } //end if( $this->settings['closure'] )
372 | else
373 | {
374 | //Not using google closure, default to JShrink but make sure the file exists
375 | if( !file_exists( dirname( __FILE__ ) .'/jShrink.php' ) )
376 | {
377 | $this->messages[]['Minifier Log'] = 'jShrink does not exist locally. Retrieving...';
378 |
379 | $this->handle = fopen( dirname( __FILE__ ) .'/jShrink.php', 'w' );
380 | $this->jshrink = file_get_contents( 'https://raw.github.com/tedivm/JShrink/master/src/JShrink/Minifier.php' );
381 | fwrite( $this->handle, $this->jshrink );
382 | fclose( $this->handle );
383 | }
384 |
385 | //Include jsmin
386 | require_once( dirname( __FILE__ ) .'/jShrink.php' );
387 |
388 | //Minify the javascript
389 | $this->content = JShrink\Minifier::minify( $this->content, array( 'flaggedComments' => $this->settings['remove_comments'] ) );
390 |
391 | } //end if( !$this->settings['closure'] )
392 |
393 | } //end $this->type == 'js'
394 |
395 | //Add to the output and return it
396 | $this->output .= $this->content;
397 | return $this->output;
398 | }
399 |
400 | } //end minify_contents()
401 |
402 |
403 | /**
404 | * Private function to create file with, or without minified contents
405 | *
406 | * @access private
407 | * @param string path to, and name of source file
408 | * @param string path to, and name of new minified file
409 | * @param bool $do_minify (default is true) (used for remote files)
410 | * @return string new filename/location (same as path to variable)
411 | */
412 | private function make_min( $src_file, $new_file, $do_minify = true )
413 | {
414 | global $messages;
415 |
416 | $this->messages[]['Minifier note'] = 'Writing new file to '. dirname( $new_file );
417 |
418 | //Make sure the directory exists and is writable
419 | if( !is_dir( dirname( $new_file ) ) || !is_writeable( dirname( $new_file ) ) )
420 | {
421 | $this->messages[]['Minifier ERROR'] = dirname( $new_file ) . ' is not writable. Cannot create minified file.';
422 | trigger_error( dirname( $new_file ) . ' is not writable. Cannot create minified file.' );
423 | return false;
424 | }
425 |
426 | //Output gzip data as needed, but default to none
427 | //Lengthy line usage is intentional to provide cleanly formatted fwrite contents
428 | $this->prequel = '';
429 | if( $this->settings['gzip'] )
430 | {
431 | $this->prequel = 'prequel .= 'if( extension_loaded( "zlib" ) )' . PHP_EOL;
433 | $this->prequel .= '{' . PHP_EOL;
434 | $this->prequel .= ' ob_start( "ob_gzhandler" );' . PHP_EOL;
435 | $this->prequel .= '}' . PHP_EOL;
436 | $this->prequel .= 'else' . PHP_EOL;
437 | $this->prequel .= '{' . PHP_EOL;
438 | $this->prequel .= ' ob_start();' . PHP_EOL;
439 | $this->prequel .= '}' . PHP_EOL;
440 |
441 | //Get the actual file type for header
442 | $this->extension = strtolower( pathinfo( $new_file, PATHINFO_EXTENSION ) );
443 |
444 | /**
445 | * If gzip is enabled, the .php extension is added automatically
446 | * and must be accounted for to prevent files from being recreated
447 | */
448 | if( $this->extension != 'php' )
449 | {
450 | $new_file = $new_file. '.php';
451 | }
452 |
453 | //Close out the php row so we can continue with normal content
454 | $offset = 60 * 60 * 24 * 31;
455 | $this->prequel .= 'header( \'Content-Encoding: gzip\' );' . PHP_EOL;
456 | $this->prequel .= 'header( \'Cache-Control: max-age=' . $offset.'\' );' . PHP_EOL;
457 | $this->prequel .= 'header( \'Expires: ' . gmdate( "D, d M Y H:i:s", time() + $offset ) . ' GMT\' );' . PHP_EOL;
458 | $this->prequel .= 'header( \'Last-Modified: ' . gmdate( "D, d M Y H:i:s", filemtime( __FILE__ ) ) . ' GMT\' );' . PHP_EOL;
459 |
460 | //Add the header content type output for correct rendering
461 | if( $this->extension == 'css' || ( strpos( $new_file, 'css' ) !== false ) )
462 | {
463 | $this->prequel .= 'header( \'Content-type: text/css; charset: UTF-8\' );' . PHP_EOL;
464 | }
465 | if( $this->extension == 'js' || ( strpos( $new_file, 'js' ) !== false ) )
466 | {
467 | $this->prequel .= 'header( \'Content-type: application/javascript; charset: UTF-8\' );' . PHP_EOL;
468 | }
469 |
470 | //Close out the php tag that gets written to the file
471 | $this->prequel .= '?>' . PHP_EOL;
472 |
473 | } //End if( $this->gzip )
474 |
475 | //Single files
476 | if( !is_array( $src_file ) )
477 | {
478 | $this->filetag = '/**' . PHP_EOL;
479 | $this->filetag .= ' * Filename: '. basename( $src_file ) . PHP_EOL;
480 | $this->filetag .= ' * Generated by MagicMin '.date('Y-m-d'). ' at '. date('h:i:s A') . PHP_EOL;
481 | $this->filetag .= ' */' . PHP_EOL;
482 | $this->content = $this->prequel . $this->filetag . $this->minify_contents( $src_file, $do_minify );
483 | }
484 | else
485 | {
486 | //Strip the directory names from the $src_file array for security
487 | $filenames = array_map( array( $this, 'strip_directory' ), $src_file );
488 |
489 | //Make a temporary var to store the data and write a TOC
490 | $this->compiled = '/**' . PHP_EOL;
491 | $this->compiled .= ' * Table of contents: ' . PHP_EOL;
492 | $this->compiled .= ' * '. implode( PHP_EOL. ' * ', $filenames ) . PHP_EOL;
493 | $this->compiled .= ' * Generated by MagicMin: ' . date( 'Y-m-d h:i:s' ). PHP_EOL;
494 | $this->compiled .= ' */' . PHP_EOL;
495 |
496 | //Loop through an array of files to write to the new file
497 | foreach( $src_file as $this->new_file )
498 | {
499 |
500 | /**
501 | * It's relatively safe to assume that remote files being retrieved
502 | * already have minified contents (ie. Google CDN hosted jquery)
503 | * so prevent re-minification, but default to $do_minify = true;
504 | */
505 | $do_minify = true;
506 | if( $this->remote_file( $this->new_file ) )
507 | {
508 | //Remote files should not have compressed content
509 | $do_minify = false;
510 | }
511 |
512 | //Add the sourcefile minified content
513 | $this->compiled .= PHP_EOL . PHP_EOL . '/* Filename: '. basename( $this->new_file ) . ' */' . PHP_EOL;
514 | $this->compiled .= $this->minify_contents( $this->new_file, $do_minify );
515 | }
516 |
517 | //Write the temporary contents to the full contents
518 | $this->content = trim( $this->prequel . $this->compiled );
519 |
520 | //Remove the temporary data
521 | unset( $this->compiled );
522 |
523 | } //End $src_file is_array
524 |
525 | //If the file already exists, open it and empty it
526 | if( file_exists( $new_file ) && is_writeable( $new_file ) )
527 | {
528 | $f = fopen( $new_file, 'w' );
529 | fclose( $f );
530 | }
531 |
532 | //Create the new file
533 | $this->handle = fopen( $new_file, 'w' );
534 |
535 | //Log any error messages from the new file creation
536 | if( !$this->handle )
537 | {
538 | $this->messages[]['Minifier ERROR'] = 'Unable to open file: '.$new_file;
539 | trigger_error( 'Unable to open file: '.$new_file );
540 | return false;
541 | }
542 | else
543 | {
544 | //Write the minified contents to it
545 | fwrite( $this->handle, $this->content );
546 | fclose( $this->handle );
547 |
548 | //Log to the console
549 | $this->messages[]['Minifier Log: New file'] = 'Successfully created '. $new_file;
550 |
551 | //Return filename and location
552 | return $new_file;
553 | }
554 |
555 | } //end make_min()
556 |
557 |
558 | /**
559 | * Get contents of JS or CSS script, create minified version
560 | * Idea and partial adaptation from: http://davidwalsh.name/php-cache-function
561 | * Dependent on "make_min" function
562 | *
563 | * Example usage:
564 | *
565 | *
566 | * $min->minify( 'source file', 'output file', 'version' );
567 | *
568 | * @access public
569 | * @param string $src_file (filename and location for original file)
570 | * @param string $file (filename and location for output file. Empty defaults to [filename].min.[extension])
571 | * @param string $version
572 | * @return string $output_file (includes provided location)
573 | */
574 | public function minify( $src_file, $file = '', $version = '' )
575 | {
576 | global $messages;
577 |
578 | //Since the $file (output) filename is optional, if empty, just add .min.[ext]
579 | if( empty( $file ) )
580 | {
581 | //Get the pathinfo
582 | $ext = pathinfo( $src_file );
583 | //Create a new filename
584 | $file = $ext['dirname'] . '/' . $ext['filename'] . '.min.' . $ext['extension'];
585 |
586 | }
587 |
588 | //If we have gzip enabled, we must account for the .php extension
589 | if( $this->settings['gzip'] && ( strtolower( pathinfo( $file, PATHINFO_EXTENSION ) ) != '.php' ) )
590 | {
591 | $file .= '.php';
592 | }
593 |
594 | //The source file is remote, and we can't check for an updated version anyway
595 | if( $this->remote_file( $src_file ) && file_exists( $file ) )
596 | {
597 | $this->output_file = $file;
598 | }
599 | //The local version doesn't exist, but we don't need to minify
600 | elseif( $this->remote_file( $src_file ) && !file_exists( $file ) )
601 | {
602 | $this->output_file = $this->make_min( $src_file, $file, false );
603 |
604 | //Add the filename to the output log
605 | $this->messages[]['Minifier Log: minify'] = 'Retrieving contents of '.$src_file .' to add to '.$file;
606 | }
607 | //The file already exists and doesn't need to be recreated
608 | elseif( ( file_exists( $file ) && file_exists( $src_file ) ) && ( filemtime( $src_file ) < filemtime( $file ) ) )
609 | {
610 | //No change, so the output is the same as the input
611 | $this->output_file = $file;
612 |
613 | }
614 | //The file exists, but the development version is newer
615 | elseif( ( file_exists( $file ) && file_exists( $src_file ) ) && ( filemtime( $src_file ) > filemtime( $file ) ) )
616 | {
617 | //Remove the file so we can do a clean recreate
618 | chmod( $file, 0777 );
619 | unlink( $file );
620 |
621 | //Make the cached version
622 | $this->output_file = $this->make_min( $src_file, $file );
623 |
624 | //Add to the console.log output
625 | $this->messages[]['Minifier Log: minify'] = 'Made new version of '.$src_file.' into '.$file;
626 | }
627 | //The minified file doesn't exist, make one
628 | else
629 | {
630 | //Make the cached version
631 | $this->output_file = $this->make_min( $src_file, $file );
632 |
633 | //Add to the console.log output if desired
634 | $this->messages[]['Minifier Log: minify'] = 'Made new version of '.$src_file.' into '.$file;
635 | }
636 |
637 | //Add the ? params if they exist
638 | if( !empty( $version ) )
639 | {
640 | $this->output_file .= '?v='. $version;
641 | }
642 |
643 | //Return the output filename or echo
644 | if( $this->settings['echo'] )
645 | {
646 | echo $this->output_file;
647 | }
648 | else
649 | {
650 | return $this->output_file;
651 | }
652 |
653 | } //end minify()
654 |
655 |
656 | /**
657 | * Get the contents of js or css files, minify, and merge into a single file
658 | *
659 | * Example usage:
660 | *
664 | *
665 | *
666 | *
667 | * @access public
668 | * @param string $output_filename
669 | * @param string $directory to loop through
670 | * @param mixed $list_or_type (css, js, selective - default is js)
671 | **** $list_or_type will also accept "selective" array which overrides glob and only includes specified files
672 | **** $list_or_type array passed files are included in order, and no other files will be included
673 | **** files must all be the same type in order to prevent eronious output contents (js and css do not mix)
674 | * @param array $exclude files to exclude
675 | * @param array $order to specify output order
676 | * @return string new filenae
677 | */
678 | public function merge( $output_filename, $directory, $list_or_type = 'js', $exclude = array(), $order = array() )
679 | {
680 | global $messages;
681 |
682 | /**
683 | * Added selective inclusion to override glob and exclusion 13-Jun-2013 ala Ray Beriau
684 | * This assumes the user has passed an array of filenames, in order rather than a file type
685 | * By doing so, we'll set the directory to indicate no contents, and priorize directly into $order
686 | */
687 | if( is_array( $list_or_type ) && !empty( $list_or_type ) )
688 | {
689 | //Direct the directory to be an empty array
690 | $this->directory = array();
691 | //Utilize the $order variable
692 | $order = $list_or_type;
693 | }
694 | else
695 | {
696 | //Open the directory for looping and seek out files of appropriate type
697 | $this->directory = glob( $directory .'/*.'.$list_or_type );
698 | }
699 |
700 | /**
701 | * Reassign the $output_filename if gzip is enabled as we must account for the .php
702 | * extension in order to prevent the file from being recreated
703 | */
704 | if( $this->settings['gzip'] && ( strtolower( pathinfo( $output_filename, PATHINFO_EXTENSION ) ) != '.php' ) )
705 | {
706 | $output_filename .= '.php';
707 | }
708 |
709 | //Create a bool to determine if a new file needs to be created
710 | $this->create_new = false;
711 |
712 | //Start the array of files to add to the cache
713 | $this->compilation = array();
714 |
715 | //Determine if a specific order is needed, if so remove only those files from glob seek
716 | if( !empty( $order ) )
717 | {
718 |
719 | $this->messages[]['Minifier Log: Merge order'] = 'Order specified with '. count( $order ) .' files';
720 |
721 | foreach( $order as $this->file )
722 | {
723 |
724 | //Check each file for modification greater than the output file if it exists
725 | if( file_exists( $output_filename ) && ( $this->file != $output_filename ) && ( !$this->remote_file( $this->file ) ) && ( filemtime( $this->file ) > filemtime( $output_filename ) ) )
726 | {
727 | $this->messages[]['Minifier Log: New File Flagged'] = 'Flagged for update by '. $this->file;
728 | $this->create_new = true;
729 | }
730 |
731 | //Add the specified files to the beginning of the use array passed to $this->make_min
732 | $this->compilation[] = $this->file;
733 |
734 | }
735 |
736 | //Now remove the same files from the glob directory
737 | $this->directory = array_diff( $this->directory, $this->compilation );
738 |
739 | } //End !empty( $order )
740 |
741 | //Loop through the directory grabbing files along the way
742 | foreach( $this->directory as $this->file )
743 | {
744 |
745 | //Make sure we didn't want to exclude this file before adding it
746 | if( !in_array( $this->file, $exclude ) && ( $this->file != $output_filename ) )
747 | {
748 | //Check each file for modification greater than the output file if it exists
749 | if( file_exists( $output_filename ) && ( !$this->remote_file( $this->file ) ) && ( filemtime( $this->file ) > filemtime( $output_filename ) ) )
750 | {
751 | $this->messages[]['Minifier Log: New File Flagged'] = 'Flagged for update by '. $this->file;
752 | $this->create_new = true;
753 | }
754 |
755 | $this->compilation[] = $this->file;
756 | }
757 |
758 | } //End foreach( $this->directory )
759 |
760 | //Only recreate the file as needed
761 | if( $this->create_new || !file_exists( $output_filename ) )
762 | {
763 | //Group and minify the contents
764 | $this->compressed = $this->make_min( $this->compilation, $output_filename );
765 | }
766 | else
767 | {
768 | $this->compressed = $output_filename;
769 | }
770 |
771 | //Echo or return
772 | if( $this->settings['echo'] )
773 | {
774 | echo $this->compressed;
775 | }
776 | else
777 | {
778 | return $this->compressed;
779 | }
780 |
781 | } //end merge()
782 |
783 |
784 | /**
785 | * Output any return data to the javascript console/source of page
786 | * Usage (assuming minifier is initiated as $minifier):
787 | * logs(); ?>
788 | *
789 | * @param none
790 | * @return string
791 | */
792 | public function logs()
793 | {
794 | global $messages;
795 |
796 | //Add the timer the console.log output if desired
797 | if( $this->settings['timer'] )
798 | {
799 | $this->messages[]['Minifier Log: timer'] = 'MagicMin processed and loaded in '. ( microtime( true ) - $this->mtime ) .' seconds';
800 | }
801 |
802 | if( !empty( $this->messages ) )
803 | {
804 |
805 | echo '';
814 |
815 | } //end !empty( $this-messages )
816 |
817 | } //end logs()
818 |
819 |
820 | } //End class Minifier
821 |
--------------------------------------------------------------------------------
/assets/snippets/cssjs/lessc.inc.php:
--------------------------------------------------------------------------------
1 |
10 | * Licensed under MIT or GPLv3, see LICENSE
11 | */
12 |
13 |
14 | /**
15 | * The less compiler and parser.
16 | *
17 | * Converting LESS to CSS is a three stage process. The incoming file is parsed
18 | * by `lessc_parser` into a syntax tree, then it is compiled into another tree
19 | * representing the CSS structure by `lessc`. The CSS tree is fed into a
20 | * formatter, like `lessc_formatter` which then outputs CSS as a string.
21 | *
22 | * During the first compile, all values are *reduced*, which means that their
23 | * types are brought to the lowest form before being dump as strings. This
24 | * handles math equations, variable dereferences, and the like.
25 | *
26 | * The `parse` function of `lessc` is the entry point.
27 | *
28 | * In summary:
29 | *
30 | * The `lessc` class creates an intstance of the parser, feeds it LESS code,
31 | * then transforms the resulting tree to a CSS tree. This class also holds the
32 | * evaluation context, such as all available mixins and variables at any given
33 | * time.
34 | *
35 | * The `lessc_parser` class is only concerned with parsing its input.
36 | *
37 | * The `lessc_formatter` takes a CSS tree, and dumps it to a formatted string,
38 | * handling things like indentation.
39 | */
40 | class lessc {
41 | static public $VERSION = "v0.4.0";
42 | static protected $TRUE = array("keyword", "true");
43 | static protected $FALSE = array("keyword", "false");
44 |
45 | protected $libFunctions = array();
46 | protected $registeredVars = array();
47 | protected $preserveComments = false;
48 |
49 | public $vPrefix = '@'; // prefix of abstract properties
50 | public $mPrefix = '$'; // prefix of abstract blocks
51 | public $parentSelector = '&';
52 |
53 | public $importDisabled = false;
54 | public $importDir = '';
55 |
56 | protected $numberPrecision = null;
57 |
58 | protected $allParsedFiles = array();
59 |
60 | // set to the parser that generated the current line when compiling
61 | // so we know how to create error messages
62 | protected $sourceParser = null;
63 | protected $sourceLoc = null;
64 |
65 | static public $defaultValue = array("keyword", "");
66 |
67 | static protected $nextImportId = 0; // uniquely identify imports
68 |
69 | // attempts to find the path of an import url, returns null for css files
70 | protected function findImport($url) {
71 | foreach ((array)$this->importDir as $dir) {
72 | $full = $dir.(substr($dir, -1) != '/' ? '/' : '').$url;
73 | if ($this->fileExists($file = $full.'.less') || $this->fileExists($file = $full)) {
74 | return $file;
75 | }
76 | }
77 |
78 | return null;
79 | }
80 |
81 | protected function fileExists($name) {
82 | return is_file($name);
83 | }
84 |
85 | static public function compressList($items, $delim) {
86 | if (!isset($items[1]) && isset($items[0])) return $items[0];
87 | else return array('list', $delim, $items);
88 | }
89 |
90 | static public function preg_quote($what) {
91 | return preg_quote($what, '/');
92 | }
93 |
94 | protected function tryImport($importPath, $parentBlock, $out) {
95 | if ($importPath[0] == "function" && $importPath[1] == "url") {
96 | $importPath = $this->flattenList($importPath[2]);
97 | }
98 |
99 | $str = $this->coerceString($importPath);
100 | if ($str === null) return false;
101 |
102 | $url = $this->compileValue($this->lib_e($str));
103 |
104 | // don't import if it ends in css
105 | if (substr_compare($url, '.css', -4, 4) === 0) return false;
106 |
107 | $realPath = $this->findImport($url);
108 |
109 | if ($realPath === null) return false;
110 |
111 | if ($this->importDisabled) {
112 | return array(false, "/* import disabled */");
113 | }
114 |
115 | if (isset($this->allParsedFiles[realpath($realPath)])) {
116 | return array(false, null);
117 | }
118 |
119 | $this->addParsedFile($realPath);
120 | $parser = $this->makeParser($realPath);
121 | $root = $parser->parse(file_get_contents($realPath));
122 |
123 | // set the parents of all the block props
124 | foreach ($root->props as $prop) {
125 | if ($prop[0] == "block") {
126 | $prop[1]->parent = $parentBlock;
127 | }
128 | }
129 |
130 | // copy mixins into scope, set their parents
131 | // bring blocks from import into current block
132 | // TODO: need to mark the source parser these came from this file
133 | foreach ($root->children as $childName => $child) {
134 | if (isset($parentBlock->children[$childName])) {
135 | $parentBlock->children[$childName] = array_merge(
136 | $parentBlock->children[$childName],
137 | $child);
138 | } else {
139 | $parentBlock->children[$childName] = $child;
140 | }
141 | }
142 |
143 | $pi = pathinfo($realPath);
144 | $dir = $pi["dirname"];
145 |
146 | list($top, $bottom) = $this->sortProps($root->props, true);
147 | $this->compileImportedProps($top, $parentBlock, $out, $parser, $dir);
148 |
149 | return array(true, $bottom, $parser, $dir);
150 | }
151 |
152 | protected function compileImportedProps($props, $block, $out, $sourceParser, $importDir) {
153 | $oldSourceParser = $this->sourceParser;
154 |
155 | $oldImport = $this->importDir;
156 |
157 | // TODO: this is because the importDir api is stupid
158 | $this->importDir = (array)$this->importDir;
159 | array_unshift($this->importDir, $importDir);
160 |
161 | foreach ($props as $prop) {
162 | $this->compileProp($prop, $block, $out);
163 | }
164 |
165 | $this->importDir = $oldImport;
166 | $this->sourceParser = $oldSourceParser;
167 | }
168 |
169 | /**
170 | * Recursively compiles a block.
171 | *
172 | * A block is analogous to a CSS block in most cases. A single LESS document
173 | * is encapsulated in a block when parsed, but it does not have parent tags
174 | * so all of it's children appear on the root level when compiled.
175 | *
176 | * Blocks are made up of props and children.
177 | *
178 | * Props are property instructions, array tuples which describe an action
179 | * to be taken, eg. write a property, set a variable, mixin a block.
180 | *
181 | * The children of a block are just all the blocks that are defined within.
182 | * This is used to look up mixins when performing a mixin.
183 | *
184 | * Compiling the block involves pushing a fresh environment on the stack,
185 | * and iterating through the props, compiling each one.
186 | *
187 | * See lessc::compileProp()
188 | *
189 | */
190 | protected function compileBlock($block) {
191 | switch ($block->type) {
192 | case "root":
193 | $this->compileRoot($block);
194 | break;
195 | case null:
196 | $this->compileCSSBlock($block);
197 | break;
198 | case "media":
199 | $this->compileMedia($block);
200 | break;
201 | case "directive":
202 | $name = "@" . $block->name;
203 | if (!empty($block->value)) {
204 | $name .= " " . $this->compileValue($this->reduce($block->value));
205 | }
206 |
207 | $this->compileNestedBlock($block, array($name));
208 | break;
209 | default:
210 | $this->throwError("unknown block type: $block->type\n");
211 | }
212 | }
213 |
214 | protected function compileCSSBlock($block) {
215 | $env = $this->pushEnv();
216 |
217 | $selectors = $this->compileSelectors($block->tags);
218 | $env->selectors = $this->multiplySelectors($selectors);
219 | $out = $this->makeOutputBlock(null, $env->selectors);
220 |
221 | $this->scope->children[] = $out;
222 | $this->compileProps($block, $out);
223 |
224 | $block->scope = $env; // mixins carry scope with them!
225 | $this->popEnv();
226 | }
227 |
228 | protected function compileMedia($media) {
229 | $env = $this->pushEnv($media);
230 | $parentScope = $this->mediaParent($this->scope);
231 |
232 | $query = $this->compileMediaQuery($this->multiplyMedia($env));
233 |
234 | $this->scope = $this->makeOutputBlock($media->type, array($query));
235 | $parentScope->children[] = $this->scope;
236 |
237 | $this->compileProps($media, $this->scope);
238 |
239 | if (count($this->scope->lines) > 0) {
240 | $orphanSelelectors = $this->findClosestSelectors();
241 | if (!is_null($orphanSelelectors)) {
242 | $orphan = $this->makeOutputBlock(null, $orphanSelelectors);
243 | $orphan->lines = $this->scope->lines;
244 | array_unshift($this->scope->children, $orphan);
245 | $this->scope->lines = array();
246 | }
247 | }
248 |
249 | $this->scope = $this->scope->parent;
250 | $this->popEnv();
251 | }
252 |
253 | protected function mediaParent($scope) {
254 | while (!empty($scope->parent)) {
255 | if (!empty($scope->type) && $scope->type != "media") {
256 | break;
257 | }
258 | $scope = $scope->parent;
259 | }
260 |
261 | return $scope;
262 | }
263 |
264 | protected function compileNestedBlock($block, $selectors) {
265 | $this->pushEnv($block);
266 | $this->scope = $this->makeOutputBlock($block->type, $selectors);
267 | $this->scope->parent->children[] = $this->scope;
268 |
269 | $this->compileProps($block, $this->scope);
270 |
271 | $this->scope = $this->scope->parent;
272 | $this->popEnv();
273 | }
274 |
275 | protected function compileRoot($root) {
276 | $this->pushEnv();
277 | $this->scope = $this->makeOutputBlock($root->type);
278 | $this->compileProps($root, $this->scope);
279 | $this->popEnv();
280 | }
281 |
282 | protected function compileProps($block, $out) {
283 | foreach ($this->sortProps($block->props) as $prop) {
284 | $this->compileProp($prop, $block, $out);
285 | }
286 |
287 | $out->lines = array_values(array_unique($out->lines));
288 | }
289 |
290 | protected function sortProps($props, $split = false) {
291 | $vars = array();
292 | $imports = array();
293 | $other = array();
294 |
295 | foreach ($props as $prop) {
296 | switch ($prop[0]) {
297 | case "assign":
298 | if (isset($prop[1][0]) && $prop[1][0] == $this->vPrefix) {
299 | $vars[] = $prop;
300 | } else {
301 | $other[] = $prop;
302 | }
303 | break;
304 | case "import":
305 | $id = self::$nextImportId++;
306 | $prop[] = $id;
307 | $imports[] = $prop;
308 | $other[] = array("import_mixin", $id);
309 | break;
310 | default:
311 | $other[] = $prop;
312 | }
313 | }
314 |
315 | if ($split) {
316 | return array(array_merge($vars, $imports), $other);
317 | } else {
318 | return array_merge($vars, $imports, $other);
319 | }
320 | }
321 |
322 | protected function compileMediaQuery($queries) {
323 | $compiledQueries = array();
324 | foreach ($queries as $query) {
325 | $parts = array();
326 | foreach ($query as $q) {
327 | switch ($q[0]) {
328 | case "mediaType":
329 | $parts[] = implode(" ", array_slice($q, 1));
330 | break;
331 | case "mediaExp":
332 | if (isset($q[2])) {
333 | $parts[] = "($q[1]: " .
334 | $this->compileValue($this->reduce($q[2])) . ")";
335 | } else {
336 | $parts[] = "($q[1])";
337 | }
338 | break;
339 | case "variable":
340 | $parts[] = $this->compileValue($this->reduce($q));
341 | break;
342 | }
343 | }
344 |
345 | if (count($parts) > 0) {
346 | $compiledQueries[] = implode(" and ", $parts);
347 | }
348 | }
349 |
350 | $out = "@media";
351 | if (!empty($parts)) {
352 | $out .= " " .
353 | implode($this->formatter->selectorSeparator, $compiledQueries);
354 | }
355 | return $out;
356 | }
357 |
358 | protected function multiplyMedia($env, $childQueries = null) {
359 | if (is_null($env) ||
360 | !empty($env->block->type) && $env->block->type != "media")
361 | {
362 | return $childQueries;
363 | }
364 |
365 | // plain old block, skip
366 | if (empty($env->block->type)) {
367 | return $this->multiplyMedia($env->parent, $childQueries);
368 | }
369 |
370 | $out = array();
371 | $queries = $env->block->queries;
372 | if (is_null($childQueries)) {
373 | $out = $queries;
374 | } else {
375 | foreach ($queries as $parent) {
376 | foreach ($childQueries as $child) {
377 | $out[] = array_merge($parent, $child);
378 | }
379 | }
380 | }
381 |
382 | return $this->multiplyMedia($env->parent, $out);
383 | }
384 |
385 | protected function expandParentSelectors(&$tag, $replace) {
386 | $parts = explode("$&$", $tag);
387 | $count = 0;
388 | foreach ($parts as &$part) {
389 | $part = str_replace($this->parentSelector, $replace, $part, $c);
390 | $count += $c;
391 | }
392 | $tag = implode($this->parentSelector, $parts);
393 | return $count;
394 | }
395 |
396 | protected function findClosestSelectors() {
397 | $env = $this->env;
398 | $selectors = null;
399 | while ($env !== null) {
400 | if (isset($env->selectors)) {
401 | $selectors = $env->selectors;
402 | break;
403 | }
404 | $env = $env->parent;
405 | }
406 |
407 | return $selectors;
408 | }
409 |
410 |
411 | // multiply $selectors against the nearest selectors in env
412 | protected function multiplySelectors($selectors) {
413 | // find parent selectors
414 |
415 | $parentSelectors = $this->findClosestSelectors();
416 | if (is_null($parentSelectors)) {
417 | // kill parent reference in top level selector
418 | foreach ($selectors as &$s) {
419 | $this->expandParentSelectors($s, "");
420 | }
421 |
422 | return $selectors;
423 | }
424 |
425 | $out = array();
426 | foreach ($parentSelectors as $parent) {
427 | foreach ($selectors as $child) {
428 | $count = $this->expandParentSelectors($child, $parent);
429 |
430 | // don't prepend the parent tag if & was used
431 | if ($count > 0) {
432 | $out[] = trim($child);
433 | } else {
434 | $out[] = trim($parent . ' ' . $child);
435 | }
436 | }
437 | }
438 |
439 | return $out;
440 | }
441 |
442 | // reduces selector expressions
443 | protected function compileSelectors($selectors) {
444 | $out = array();
445 |
446 | foreach ($selectors as $s) {
447 | if (is_array($s)) {
448 | list(, $value) = $s;
449 | $out[] = trim($this->compileValue($this->reduce($value)));
450 | } else {
451 | $out[] = $s;
452 | }
453 | }
454 |
455 | return $out;
456 | }
457 |
458 | protected function eq($left, $right) {
459 | return $left == $right;
460 | }
461 |
462 | protected function patternMatch($block, $orderedArgs, $keywordArgs) {
463 | // match the guards if it has them
464 | // any one of the groups must have all its guards pass for a match
465 | if (!empty($block->guards)) {
466 | $groupPassed = false;
467 | foreach ($block->guards as $guardGroup) {
468 | foreach ($guardGroup as $guard) {
469 | $this->pushEnv();
470 | $this->zipSetArgs($block->args, $orderedArgs, $keywordArgs);
471 |
472 | $negate = false;
473 | if ($guard[0] == "negate") {
474 | $guard = $guard[1];
475 | $negate = true;
476 | }
477 |
478 | $passed = $this->reduce($guard) == self::$TRUE;
479 | if ($negate) $passed = !$passed;
480 |
481 | $this->popEnv();
482 |
483 | if ($passed) {
484 | $groupPassed = true;
485 | } else {
486 | $groupPassed = false;
487 | break;
488 | }
489 | }
490 |
491 | if ($groupPassed) break;
492 | }
493 |
494 | if (!$groupPassed) {
495 | return false;
496 | }
497 | }
498 |
499 | if (empty($block->args)) {
500 | return $block->isVararg || empty($orderedArgs) && empty($keywordArgs);
501 | }
502 |
503 | $remainingArgs = $block->args;
504 | if ($keywordArgs) {
505 | $remainingArgs = array();
506 | foreach ($block->args as $arg) {
507 | if ($arg[0] == "arg" && isset($keywordArgs[$arg[1]])) {
508 | continue;
509 | }
510 |
511 | $remainingArgs[] = $arg;
512 | }
513 | }
514 |
515 | $i = -1; // no args
516 | // try to match by arity or by argument literal
517 | foreach ($remainingArgs as $i => $arg) {
518 | switch ($arg[0]) {
519 | case "lit":
520 | if (empty($orderedArgs[$i]) || !$this->eq($arg[1], $orderedArgs[$i])) {
521 | return false;
522 | }
523 | break;
524 | case "arg":
525 | // no arg and no default value
526 | if (!isset($orderedArgs[$i]) && !isset($arg[2])) {
527 | return false;
528 | }
529 | break;
530 | case "rest":
531 | $i--; // rest can be empty
532 | break 2;
533 | }
534 | }
535 |
536 | if ($block->isVararg) {
537 | return true; // not having enough is handled above
538 | } else {
539 | $numMatched = $i + 1;
540 | // greater than becuase default values always match
541 | return $numMatched >= count($orderedArgs);
542 | }
543 | }
544 |
545 | protected function patternMatchAll($blocks, $orderedArgs, $keywordArgs, $skip=array()) {
546 | $matches = null;
547 | foreach ($blocks as $block) {
548 | // skip seen blocks that don't have arguments
549 | if (isset($skip[$block->id]) && !isset($block->args)) {
550 | continue;
551 | }
552 |
553 | if ($this->patternMatch($block, $orderedArgs, $keywordArgs)) {
554 | $matches[] = $block;
555 | }
556 | }
557 |
558 | return $matches;
559 | }
560 |
561 | // attempt to find blocks matched by path and args
562 | protected function findBlocks($searchIn, $path, $orderedArgs, $keywordArgs, $seen=array()) {
563 | if ($searchIn == null) return null;
564 | if (isset($seen[$searchIn->id])) return null;
565 | $seen[$searchIn->id] = true;
566 |
567 | $name = $path[0];
568 |
569 | if (isset($searchIn->children[$name])) {
570 | $blocks = $searchIn->children[$name];
571 | if (count($path) == 1) {
572 | $matches = $this->patternMatchAll($blocks, $orderedArgs, $keywordArgs, $seen);
573 | if (!empty($matches)) {
574 | // This will return all blocks that match in the closest
575 | // scope that has any matching block, like lessjs
576 | return $matches;
577 | }
578 | } else {
579 | $matches = array();
580 | foreach ($blocks as $subBlock) {
581 | $subMatches = $this->findBlocks($subBlock,
582 | array_slice($path, 1), $orderedArgs, $keywordArgs, $seen);
583 |
584 | if (!is_null($subMatches)) {
585 | foreach ($subMatches as $sm) {
586 | $matches[] = $sm;
587 | }
588 | }
589 | }
590 |
591 | return count($matches) > 0 ? $matches : null;
592 | }
593 | }
594 | if ($searchIn->parent === $searchIn) return null;
595 | return $this->findBlocks($searchIn->parent, $path, $orderedArgs, $keywordArgs, $seen);
596 | }
597 |
598 | // sets all argument names in $args to either the default value
599 | // or the one passed in through $values
600 | protected function zipSetArgs($args, $orderedValues, $keywordValues) {
601 | $assignedValues = array();
602 |
603 | $i = 0;
604 | foreach ($args as $a) {
605 | if ($a[0] == "arg") {
606 | if (isset($keywordValues[$a[1]])) {
607 | // has keyword arg
608 | $value = $keywordValues[$a[1]];
609 | } elseif (isset($orderedValues[$i])) {
610 | // has ordered arg
611 | $value = $orderedValues[$i];
612 | $i++;
613 | } elseif (isset($a[2])) {
614 | // has default value
615 | $value = $a[2];
616 | } else {
617 | $this->throwError("Failed to assign arg " . $a[1]);
618 | $value = null; // :(
619 | }
620 |
621 | $value = $this->reduce($value);
622 | $this->set($a[1], $value);
623 | $assignedValues[] = $value;
624 | } else {
625 | // a lit
626 | $i++;
627 | }
628 | }
629 |
630 | // check for a rest
631 | $last = end($args);
632 | if ($last[0] == "rest") {
633 | $rest = array_slice($orderedValues, count($args) - 1);
634 | $this->set($last[1], $this->reduce(array("list", " ", $rest)));
635 | }
636 |
637 | // wow is this the only true use of PHP's + operator for arrays?
638 | $this->env->arguments = $assignedValues + $orderedValues;
639 | }
640 |
641 | // compile a prop and update $lines or $blocks appropriately
642 | protected function compileProp($prop, $block, $out) {
643 | // set error position context
644 | $this->sourceLoc = isset($prop[-1]) ? $prop[-1] : -1;
645 |
646 | switch ($prop[0]) {
647 | case 'assign':
648 | list(, $name, $value) = $prop;
649 | if ($name[0] == $this->vPrefix) {
650 | $this->set($name, $value);
651 | } else {
652 | $out->lines[] = $this->formatter->property($name,
653 | $this->compileValue($this->reduce($value)));
654 | }
655 | break;
656 | case 'block':
657 | list(, $child) = $prop;
658 | $this->compileBlock($child);
659 | break;
660 | case 'mixin':
661 | list(, $path, $args, $suffix) = $prop;
662 |
663 | $orderedArgs = array();
664 | $keywordArgs = array();
665 | foreach ((array)$args as $arg) {
666 | $argval = null;
667 | switch ($arg[0]) {
668 | case "arg":
669 | if (!isset($arg[2])) {
670 | $orderedArgs[] = $this->reduce(array("variable", $arg[1]));
671 | } else {
672 | $keywordArgs[$arg[1]] = $this->reduce($arg[2]);
673 | }
674 | break;
675 |
676 | case "lit":
677 | $orderedArgs[] = $this->reduce($arg[1]);
678 | break;
679 | default:
680 | $this->throwError("Unknown arg type: " . $arg[0]);
681 | }
682 | }
683 |
684 | $mixins = $this->findBlocks($block, $path, $orderedArgs, $keywordArgs);
685 |
686 | if ($mixins === null) {
687 | // fwrite(STDERR,"failed to find block: ".implode(" > ", $path)."\n");
688 | break; // throw error here??
689 | }
690 |
691 | foreach ($mixins as $mixin) {
692 | if ($mixin === $block && !$orderedArgs) {
693 | continue;
694 | }
695 |
696 | $haveScope = false;
697 | if (isset($mixin->parent->scope)) {
698 | $haveScope = true;
699 | $mixinParentEnv = $this->pushEnv();
700 | $mixinParentEnv->storeParent = $mixin->parent->scope;
701 | }
702 |
703 | $haveArgs = false;
704 | if (isset($mixin->args)) {
705 | $haveArgs = true;
706 | $this->pushEnv();
707 | $this->zipSetArgs($mixin->args, $orderedArgs, $keywordArgs);
708 | }
709 |
710 | $oldParent = $mixin->parent;
711 | if ($mixin != $block) $mixin->parent = $block;
712 |
713 | foreach ($this->sortProps($mixin->props) as $subProp) {
714 | if ($suffix !== null &&
715 | $subProp[0] == "assign" &&
716 | is_string($subProp[1]) &&
717 | $subProp[1]{0} != $this->vPrefix)
718 | {
719 | $subProp[2] = array(
720 | 'list', ' ',
721 | array($subProp[2], array('keyword', $suffix))
722 | );
723 | }
724 |
725 | $this->compileProp($subProp, $mixin, $out);
726 | }
727 |
728 | $mixin->parent = $oldParent;
729 |
730 | if ($haveArgs) $this->popEnv();
731 | if ($haveScope) $this->popEnv();
732 | }
733 |
734 | break;
735 | case 'raw':
736 | $out->lines[] = $prop[1];
737 | break;
738 | case "directive":
739 | list(, $name, $value) = $prop;
740 | $out->lines[] = "@$name " . $this->compileValue($this->reduce($value)).';';
741 | break;
742 | case "comment":
743 | $out->lines[] = $prop[1];
744 | break;
745 | case "import";
746 | list(, $importPath, $importId) = $prop;
747 | $importPath = $this->reduce($importPath);
748 |
749 | if (!isset($this->env->imports)) {
750 | $this->env->imports = array();
751 | }
752 |
753 | $result = $this->tryImport($importPath, $block, $out);
754 |
755 | $this->env->imports[$importId] = $result === false ?
756 | array(false, "@import " . $this->compileValue($importPath).";") :
757 | $result;
758 |
759 | break;
760 | case "import_mixin":
761 | list(,$importId) = $prop;
762 | $import = $this->env->imports[$importId];
763 | if ($import[0] === false) {
764 | if (isset($import[1])) {
765 | $out->lines[] = $import[1];
766 | }
767 | } else {
768 | list(, $bottom, $parser, $importDir) = $import;
769 | $this->compileImportedProps($bottom, $block, $out, $parser, $importDir);
770 | }
771 |
772 | break;
773 | default:
774 | $this->throwError("unknown op: {$prop[0]}\n");
775 | }
776 | }
777 |
778 |
779 | /**
780 | * Compiles a primitive value into a CSS property value.
781 | *
782 | * Values in lessphp are typed by being wrapped in arrays, their format is
783 | * typically:
784 | *
785 | * array(type, contents [, additional_contents]*)
786 | *
787 | * The input is expected to be reduced. This function will not work on
788 | * things like expressions and variables.
789 | */
790 | protected function compileValue($value) {
791 | switch ($value[0]) {
792 | case 'list':
793 | // [1] - delimiter
794 | // [2] - array of values
795 | return implode($value[1], array_map(array($this, 'compileValue'), $value[2]));
796 | case 'raw_color':
797 | if (!empty($this->formatter->compressColors)) {
798 | return $this->compileValue($this->coerceColor($value));
799 | }
800 | return $value[1];
801 | case 'keyword':
802 | // [1] - the keyword
803 | return $value[1];
804 | case 'number':
805 | list(, $num, $unit) = $value;
806 | // [1] - the number
807 | // [2] - the unit
808 | if ($this->numberPrecision !== null) {
809 | $num = round($num, $this->numberPrecision);
810 | }
811 | return $num . $unit;
812 | case 'string':
813 | // [1] - contents of string (includes quotes)
814 | list(, $delim, $content) = $value;
815 | foreach ($content as &$part) {
816 | if (is_array($part)) {
817 | $part = $this->compileValue($part);
818 | }
819 | }
820 | return $delim . implode($content) . $delim;
821 | case 'color':
822 | // [1] - red component (either number or a %)
823 | // [2] - green component
824 | // [3] - blue component
825 | // [4] - optional alpha component
826 | list(, $r, $g, $b) = $value;
827 | $r = round($r);
828 | $g = round($g);
829 | $b = round($b);
830 |
831 | if (count($value) == 5 && $value[4] != 1) { // rgba
832 | return 'rgba('.$r.','.$g.','.$b.','.$value[4].')';
833 | }
834 |
835 | $h = sprintf("#%02x%02x%02x", $r, $g, $b);
836 |
837 | if (!empty($this->formatter->compressColors)) {
838 | // Converting hex color to short notation (e.g. #003399 to #039)
839 | if ($h[1] === $h[2] && $h[3] === $h[4] && $h[5] === $h[6]) {
840 | $h = '#' . $h[1] . $h[3] . $h[5];
841 | }
842 | }
843 |
844 | return $h;
845 |
846 | case 'function':
847 | list(, $name, $args) = $value;
848 | return $name.'('.$this->compileValue($args).')';
849 | default: // assumed to be unit
850 | $this->throwError("unknown value type: $value[0]");
851 | }
852 | }
853 |
854 | protected function lib_pow($args) {
855 | list($base, $exp) = $this->assertArgs($args, 2, "pow");
856 | return pow($this->assertNumber($base), $this->assertNumber($exp));
857 | }
858 |
859 | protected function lib_pi() {
860 | return pi();
861 | }
862 |
863 | protected function lib_mod($args) {
864 | list($a, $b) = $this->assertArgs($args, 2, "mod");
865 | return $this->assertNumber($a) % $this->assertNumber($b);
866 | }
867 |
868 | protected function lib_tan($num) {
869 | return tan($this->assertNumber($num));
870 | }
871 |
872 | protected function lib_sin($num) {
873 | return sin($this->assertNumber($num));
874 | }
875 |
876 | protected function lib_cos($num) {
877 | return cos($this->assertNumber($num));
878 | }
879 |
880 | protected function lib_atan($num) {
881 | $num = atan($this->assertNumber($num));
882 | return array("number", $num, "rad");
883 | }
884 |
885 | protected function lib_asin($num) {
886 | $num = asin($this->assertNumber($num));
887 | return array("number", $num, "rad");
888 | }
889 |
890 | protected function lib_acos($num) {
891 | $num = acos($this->assertNumber($num));
892 | return array("number", $num, "rad");
893 | }
894 |
895 | protected function lib_sqrt($num) {
896 | return sqrt($this->assertNumber($num));
897 | }
898 |
899 | protected function lib_extract($value) {
900 | list($list, $idx) = $this->assertArgs($value, 2, "extract");
901 | $idx = $this->assertNumber($idx);
902 | // 1 indexed
903 | if ($list[0] == "list" && isset($list[2][$idx - 1])) {
904 | return $list[2][$idx - 1];
905 | }
906 | }
907 |
908 | protected function lib_isnumber($value) {
909 | return $this->toBool($value[0] == "number");
910 | }
911 |
912 | protected function lib_isstring($value) {
913 | return $this->toBool($value[0] == "string");
914 | }
915 |
916 | protected function lib_iscolor($value) {
917 | return $this->toBool($this->coerceColor($value));
918 | }
919 |
920 | protected function lib_iskeyword($value) {
921 | return $this->toBool($value[0] == "keyword");
922 | }
923 |
924 | protected function lib_ispixel($value) {
925 | return $this->toBool($value[0] == "number" && $value[2] == "px");
926 | }
927 |
928 | protected function lib_ispercentage($value) {
929 | return $this->toBool($value[0] == "number" && $value[2] == "%");
930 | }
931 |
932 | protected function lib_isem($value) {
933 | return $this->toBool($value[0] == "number" && $value[2] == "em");
934 | }
935 |
936 | protected function lib_isrem($value) {
937 | return $this->toBool($value[0] == "number" && $value[2] == "rem");
938 | }
939 |
940 | protected function lib_rgbahex($color) {
941 | $color = $this->coerceColor($color);
942 | if (is_null($color))
943 | $this->throwError("color expected for rgbahex");
944 |
945 | return sprintf("#%02x%02x%02x%02x",
946 | isset($color[4]) ? $color[4]*255 : 255,
947 | $color[1],$color[2], $color[3]);
948 | }
949 |
950 | protected function lib_argb($color){
951 | return $this->lib_rgbahex($color);
952 | }
953 |
954 | // utility func to unquote a string
955 | protected function lib_e($arg) {
956 | switch ($arg[0]) {
957 | case "list":
958 | $items = $arg[2];
959 | if (isset($items[0])) {
960 | return $this->lib_e($items[0]);
961 | }
962 | return self::$defaultValue;
963 | case "string":
964 | $arg[1] = "";
965 | return $arg;
966 | case "keyword":
967 | return $arg;
968 | default:
969 | return array("keyword", $this->compileValue($arg));
970 | }
971 | }
972 |
973 | protected function lib__sprintf($args) {
974 | if ($args[0] != "list") return $args;
975 | $values = $args[2];
976 | $string = array_shift($values);
977 | $template = $this->compileValue($this->lib_e($string));
978 |
979 | $i = 0;
980 | if (preg_match_all('/%[dsa]/', $template, $m)) {
981 | foreach ($m[0] as $match) {
982 | $val = isset($values[$i]) ?
983 | $this->reduce($values[$i]) : array('keyword', '');
984 |
985 | // lessjs compat, renders fully expanded color, not raw color
986 | if ($color = $this->coerceColor($val)) {
987 | $val = $color;
988 | }
989 |
990 | $i++;
991 | $rep = $this->compileValue($this->lib_e($val));
992 | $template = preg_replace('/'.self::preg_quote($match).'/',
993 | $rep, $template, 1);
994 | }
995 | }
996 |
997 | $d = $string[0] == "string" ? $string[1] : '"';
998 | return array("string", $d, array($template));
999 | }
1000 |
1001 | protected function lib_floor($arg) {
1002 | $value = $this->assertNumber($arg);
1003 | return array("number", floor($value), $arg[2]);
1004 | }
1005 |
1006 | protected function lib_ceil($arg) {
1007 | $value = $this->assertNumber($arg);
1008 | return array("number", ceil($value), $arg[2]);
1009 | }
1010 |
1011 | protected function lib_round($arg) {
1012 | $value = $this->assertNumber($arg);
1013 | return array("number", round($value), $arg[2]);
1014 | }
1015 |
1016 | protected function lib_unit($arg) {
1017 | if ($arg[0] == "list") {
1018 | list($number, $newUnit) = $arg[2];
1019 | return array("number", $this->assertNumber($number),
1020 | $this->compileValue($this->lib_e($newUnit)));
1021 | } else {
1022 | return array("number", $this->assertNumber($arg), "");
1023 | }
1024 | }
1025 |
1026 | /**
1027 | * Helper function to get arguments for color manipulation functions.
1028 | * takes a list that contains a color like thing and a percentage
1029 | */
1030 | protected function colorArgs($args) {
1031 | if ($args[0] != 'list' || count($args[2]) < 2) {
1032 | return array(array('color', 0, 0, 0), 0);
1033 | }
1034 | list($color, $delta) = $args[2];
1035 | $color = $this->assertColor($color);
1036 | $delta = floatval($delta[1]);
1037 |
1038 | return array($color, $delta);
1039 | }
1040 |
1041 | protected function lib_darken($args) {
1042 | list($color, $delta) = $this->colorArgs($args);
1043 |
1044 | $hsl = $this->toHSL($color);
1045 | $hsl[3] = $this->clamp($hsl[3] - $delta, 100);
1046 | return $this->toRGB($hsl);
1047 | }
1048 |
1049 | protected function lib_lighten($args) {
1050 | list($color, $delta) = $this->colorArgs($args);
1051 |
1052 | $hsl = $this->toHSL($color);
1053 | $hsl[3] = $this->clamp($hsl[3] + $delta, 100);
1054 | return $this->toRGB($hsl);
1055 | }
1056 |
1057 | protected function lib_saturate($args) {
1058 | list($color, $delta) = $this->colorArgs($args);
1059 |
1060 | $hsl = $this->toHSL($color);
1061 | $hsl[2] = $this->clamp($hsl[2] + $delta, 100);
1062 | return $this->toRGB($hsl);
1063 | }
1064 |
1065 | protected function lib_desaturate($args) {
1066 | list($color, $delta) = $this->colorArgs($args);
1067 |
1068 | $hsl = $this->toHSL($color);
1069 | $hsl[2] = $this->clamp($hsl[2] - $delta, 100);
1070 | return $this->toRGB($hsl);
1071 | }
1072 |
1073 | protected function lib_spin($args) {
1074 | list($color, $delta) = $this->colorArgs($args);
1075 |
1076 | $hsl = $this->toHSL($color);
1077 |
1078 | $hsl[1] = $hsl[1] + $delta % 360;
1079 | if ($hsl[1] < 0) $hsl[1] += 360;
1080 |
1081 | return $this->toRGB($hsl);
1082 | }
1083 |
1084 | protected function lib_fadeout($args) {
1085 | list($color, $delta) = $this->colorArgs($args);
1086 | $color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) - $delta/100);
1087 | return $color;
1088 | }
1089 |
1090 | protected function lib_fadein($args) {
1091 | list($color, $delta) = $this->colorArgs($args);
1092 | $color[4] = $this->clamp((isset($color[4]) ? $color[4] : 1) + $delta/100);
1093 | return $color;
1094 | }
1095 |
1096 | protected function lib_hue($color) {
1097 | $hsl = $this->toHSL($this->assertColor($color));
1098 | return round($hsl[1]);
1099 | }
1100 |
1101 | protected function lib_saturation($color) {
1102 | $hsl = $this->toHSL($this->assertColor($color));
1103 | return round($hsl[2]);
1104 | }
1105 |
1106 | protected function lib_lightness($color) {
1107 | $hsl = $this->toHSL($this->assertColor($color));
1108 | return round($hsl[3]);
1109 | }
1110 |
1111 | // get the alpha of a color
1112 | // defaults to 1 for non-colors or colors without an alpha
1113 | protected function lib_alpha($value) {
1114 | if (!is_null($color = $this->coerceColor($value))) {
1115 | return isset($color[4]) ? $color[4] : 1;
1116 | }
1117 | }
1118 |
1119 | // set the alpha of the color
1120 | protected function lib_fade($args) {
1121 | list($color, $alpha) = $this->colorArgs($args);
1122 | $color[4] = $this->clamp($alpha / 100.0);
1123 | return $color;
1124 | }
1125 |
1126 | protected function lib_percentage($arg) {
1127 | $num = $this->assertNumber($arg);
1128 | return array("number", $num*100, "%");
1129 | }
1130 |
1131 | // mixes two colors by weight
1132 | // mix(@color1, @color2, [@weight: 50%]);
1133 | // http://sass-lang.com/docs/yardoc/Sass/Script/Functions.html#mix-instance_method
1134 | protected function lib_mix($args) {
1135 | if ($args[0] != "list" || count($args[2]) < 2)
1136 | $this->throwError("mix expects (color1, color2, weight)");
1137 |
1138 | list($first, $second) = $args[2];
1139 | $first = $this->assertColor($first);
1140 | $second = $this->assertColor($second);
1141 |
1142 | $first_a = $this->lib_alpha($first);
1143 | $second_a = $this->lib_alpha($second);
1144 |
1145 | if (isset($args[2][2])) {
1146 | $weight = $args[2][2][1] / 100.0;
1147 | } else {
1148 | $weight = 0.5;
1149 | }
1150 |
1151 | $w = $weight * 2 - 1;
1152 | $a = $first_a - $second_a;
1153 |
1154 | $w1 = (($w * $a == -1 ? $w : ($w + $a)/(1 + $w * $a)) + 1) / 2.0;
1155 | $w2 = 1.0 - $w1;
1156 |
1157 | $new = array('color',
1158 | $w1 * $first[1] + $w2 * $second[1],
1159 | $w1 * $first[2] + $w2 * $second[2],
1160 | $w1 * $first[3] + $w2 * $second[3],
1161 | );
1162 |
1163 | if ($first_a != 1.0 || $second_a != 1.0) {
1164 | $new[] = $first_a * $weight + $second_a * ($weight - 1);
1165 | }
1166 |
1167 | return $this->fixColor($new);
1168 | }
1169 |
1170 | protected function lib_contrast($args) {
1171 | if ($args[0] != 'list' || count($args[2]) < 3) {
1172 | return array(array('color', 0, 0, 0), 0);
1173 | }
1174 |
1175 | list($inputColor, $darkColor, $lightColor) = $args[2];
1176 |
1177 | $inputColor = $this->assertColor($inputColor);
1178 | $darkColor = $this->assertColor($darkColor);
1179 | $lightColor = $this->assertColor($lightColor);
1180 | $hsl = $this->toHSL($inputColor);
1181 |
1182 | if ($hsl[3] > 50) {
1183 | return $darkColor;
1184 | }
1185 |
1186 | return $lightColor;
1187 | }
1188 |
1189 | protected function assertColor($value, $error = "expected color value") {
1190 | $color = $this->coerceColor($value);
1191 | if (is_null($color)) $this->throwError($error);
1192 | return $color;
1193 | }
1194 |
1195 | protected function assertNumber($value, $error = "expecting number") {
1196 | if ($value[0] == "number") return $value[1];
1197 | $this->throwError($error);
1198 | }
1199 |
1200 | protected function assertArgs($value, $expectedArgs, $name="") {
1201 | if ($expectedArgs == 1) {
1202 | return $value;
1203 | } else {
1204 | if ($value[0] !== "list" || $value[1] != ",") $this->throwError("expecting list");
1205 | $values = $value[2];
1206 | $numValues = count($values);
1207 | if ($expectedArgs != $numValues) {
1208 | if ($name) {
1209 | $name = $name . ": ";
1210 | }
1211 |
1212 | $this->throwError("${name}expecting $expectedArgs arguments, got $numValues");
1213 | }
1214 |
1215 | return $values;
1216 | }
1217 | }
1218 |
1219 | protected function toHSL($color) {
1220 | if ($color[0] == 'hsl') return $color;
1221 |
1222 | $r = $color[1] / 255;
1223 | $g = $color[2] / 255;
1224 | $b = $color[3] / 255;
1225 |
1226 | $min = min($r, $g, $b);
1227 | $max = max($r, $g, $b);
1228 |
1229 | $L = ($min + $max) / 2;
1230 | if ($min == $max) {
1231 | $S = $H = 0;
1232 | } else {
1233 | if ($L < 0.5)
1234 | $S = ($max - $min)/($max + $min);
1235 | else
1236 | $S = ($max - $min)/(2.0 - $max - $min);
1237 |
1238 | if ($r == $max) $H = ($g - $b)/($max - $min);
1239 | elseif ($g == $max) $H = 2.0 + ($b - $r)/($max - $min);
1240 | elseif ($b == $max) $H = 4.0 + ($r - $g)/($max - $min);
1241 |
1242 | }
1243 |
1244 | $out = array('hsl',
1245 | ($H < 0 ? $H + 6 : $H)*60,
1246 | $S*100,
1247 | $L*100,
1248 | );
1249 |
1250 | if (count($color) > 4) $out[] = $color[4]; // copy alpha
1251 | return $out;
1252 | }
1253 |
1254 | protected function toRGB_helper($comp, $temp1, $temp2) {
1255 | if ($comp < 0) $comp += 1.0;
1256 | elseif ($comp > 1) $comp -= 1.0;
1257 |
1258 | if (6 * $comp < 1) return $temp1 + ($temp2 - $temp1) * 6 * $comp;
1259 | if (2 * $comp < 1) return $temp2;
1260 | if (3 * $comp < 2) return $temp1 + ($temp2 - $temp1)*((2/3) - $comp) * 6;
1261 |
1262 | return $temp1;
1263 | }
1264 |
1265 | /**
1266 | * Converts a hsl array into a color value in rgb.
1267 | * Expects H to be in range of 0 to 360, S and L in 0 to 100
1268 | */
1269 | protected function toRGB($color) {
1270 | if ($color[0] == 'color') return $color;
1271 |
1272 | $H = $color[1] / 360;
1273 | $S = $color[2] / 100;
1274 | $L = $color[3] / 100;
1275 |
1276 | if ($S == 0) {
1277 | $r = $g = $b = $L;
1278 | } else {
1279 | $temp2 = $L < 0.5 ?
1280 | $L*(1.0 + $S) :
1281 | $L + $S - $L * $S;
1282 |
1283 | $temp1 = 2.0 * $L - $temp2;
1284 |
1285 | $r = $this->toRGB_helper($H + 1/3, $temp1, $temp2);
1286 | $g = $this->toRGB_helper($H, $temp1, $temp2);
1287 | $b = $this->toRGB_helper($H - 1/3, $temp1, $temp2);
1288 | }
1289 |
1290 | // $out = array('color', round($r*255), round($g*255), round($b*255));
1291 | $out = array('color', $r*255, $g*255, $b*255);
1292 | if (count($color) > 4) $out[] = $color[4]; // copy alpha
1293 | return $out;
1294 | }
1295 |
1296 | protected function clamp($v, $max = 1, $min = 0) {
1297 | return min($max, max($min, $v));
1298 | }
1299 |
1300 | /**
1301 | * Convert the rgb, rgba, hsl color literals of function type
1302 | * as returned by the parser into values of color type.
1303 | */
1304 | protected function funcToColor($func) {
1305 | $fname = $func[1];
1306 | if ($func[2][0] != 'list') return false; // need a list of arguments
1307 | $rawComponents = $func[2][2];
1308 |
1309 | if ($fname == 'hsl' || $fname == 'hsla') {
1310 | $hsl = array('hsl');
1311 | $i = 0;
1312 | foreach ($rawComponents as $c) {
1313 | $val = $this->reduce($c);
1314 | $val = isset($val[1]) ? floatval($val[1]) : 0;
1315 |
1316 | if ($i == 0) $clamp = 360;
1317 | elseif ($i < 3) $clamp = 100;
1318 | else $clamp = 1;
1319 |
1320 | $hsl[] = $this->clamp($val, $clamp);
1321 | $i++;
1322 | }
1323 |
1324 | while (count($hsl) < 4) $hsl[] = 0;
1325 | return $this->toRGB($hsl);
1326 |
1327 | } elseif ($fname == 'rgb' || $fname == 'rgba') {
1328 | $components = array();
1329 | $i = 1;
1330 | foreach ($rawComponents as $c) {
1331 | $c = $this->reduce($c);
1332 | if ($i < 4) {
1333 | if ($c[0] == "number" && $c[2] == "%") {
1334 | $components[] = 255 * ($c[1] / 100);
1335 | } else {
1336 | $components[] = floatval($c[1]);
1337 | }
1338 | } elseif ($i == 4) {
1339 | if ($c[0] == "number" && $c[2] == "%") {
1340 | $components[] = 1.0 * ($c[1] / 100);
1341 | } else {
1342 | $components[] = floatval($c[1]);
1343 | }
1344 | } else break;
1345 |
1346 | $i++;
1347 | }
1348 | while (count($components) < 3) $components[] = 0;
1349 | array_unshift($components, 'color');
1350 | return $this->fixColor($components);
1351 | }
1352 |
1353 | return false;
1354 | }
1355 |
1356 | protected function reduce($value, $forExpression = false) {
1357 | switch ($value[0]) {
1358 | case "interpolate":
1359 | $reduced = $this->reduce($value[1]);
1360 | $var = $this->compileValue($reduced);
1361 | $res = $this->reduce(array("variable", $this->vPrefix . $var));
1362 |
1363 | if ($res[0] == "raw_color") {
1364 | $res = $this->coerceColor($res);
1365 | }
1366 |
1367 | if (empty($value[2])) $res = $this->lib_e($res);
1368 |
1369 | return $res;
1370 | case "variable":
1371 | $key = $value[1];
1372 | if (is_array($key)) {
1373 | $key = $this->reduce($key);
1374 | $key = $this->vPrefix . $this->compileValue($this->lib_e($key));
1375 | }
1376 |
1377 | $seen =& $this->env->seenNames;
1378 |
1379 | if (!empty($seen[$key])) {
1380 | $this->throwError("infinite loop detected: $key");
1381 | }
1382 |
1383 | $seen[$key] = true;
1384 | $out = $this->reduce($this->get($key, self::$defaultValue));
1385 | $seen[$key] = false;
1386 | return $out;
1387 | case "list":
1388 | foreach ($value[2] as &$item) {
1389 | $item = $this->reduce($item, $forExpression);
1390 | }
1391 | return $value;
1392 | case "expression":
1393 | return $this->evaluate($value);
1394 | case "string":
1395 | foreach ($value[2] as &$part) {
1396 | if (is_array($part)) {
1397 | $strip = $part[0] == "variable";
1398 | $part = $this->reduce($part);
1399 | if ($strip) $part = $this->lib_e($part);
1400 | }
1401 | }
1402 | return $value;
1403 | case "escape":
1404 | list(,$inner) = $value;
1405 | return $this->lib_e($this->reduce($inner));
1406 | case "function":
1407 | $color = $this->funcToColor($value);
1408 | if ($color) return $color;
1409 |
1410 | list(, $name, $args) = $value;
1411 | if ($name == "%") $name = "_sprintf";
1412 | $f = isset($this->libFunctions[$name]) ?
1413 | $this->libFunctions[$name] : array($this, 'lib_'.$name);
1414 |
1415 | if (is_callable($f)) {
1416 | if ($args[0] == 'list')
1417 | $args = self::compressList($args[2], $args[1]);
1418 |
1419 | $ret = call_user_func($f, $this->reduce($args, true), $this);
1420 |
1421 | if (is_null($ret)) {
1422 | return array("string", "", array(
1423 | $name, "(", $args, ")"
1424 | ));
1425 | }
1426 |
1427 | // convert to a typed value if the result is a php primitive
1428 | if (is_numeric($ret)) $ret = array('number', $ret, "");
1429 | elseif (!is_array($ret)) $ret = array('keyword', $ret);
1430 |
1431 | return $ret;
1432 | }
1433 |
1434 | // plain function, reduce args
1435 | $value[2] = $this->reduce($value[2]);
1436 | return $value;
1437 | case "unary":
1438 | list(, $op, $exp) = $value;
1439 | $exp = $this->reduce($exp);
1440 |
1441 | if ($exp[0] == "number") {
1442 | switch ($op) {
1443 | case "+":
1444 | return $exp;
1445 | case "-":
1446 | $exp[1] *= -1;
1447 | return $exp;
1448 | }
1449 | }
1450 | return array("string", "", array($op, $exp));
1451 | }
1452 |
1453 | if ($forExpression) {
1454 | switch ($value[0]) {
1455 | case "keyword":
1456 | if ($color = $this->coerceColor($value)) {
1457 | return $color;
1458 | }
1459 | break;
1460 | case "raw_color":
1461 | return $this->coerceColor($value);
1462 | }
1463 | }
1464 |
1465 | return $value;
1466 | }
1467 |
1468 |
1469 | // coerce a value for use in color operation
1470 | protected function coerceColor($value) {
1471 | switch($value[0]) {
1472 | case 'color': return $value;
1473 | case 'raw_color':
1474 | $c = array("color", 0, 0, 0);
1475 | $colorStr = substr($value[1], 1);
1476 | $num = hexdec($colorStr);
1477 | $width = strlen($colorStr) == 3 ? 16 : 256;
1478 |
1479 | for ($i = 3; $i > 0; $i--) { // 3 2 1
1480 | $t = $num % $width;
1481 | $num /= $width;
1482 |
1483 | $c[$i] = $t * (256/$width) + $t * floor(16/$width);
1484 | }
1485 |
1486 | return $c;
1487 | case 'keyword':
1488 | $name = $value[1];
1489 | if (isset(self::$cssColors[$name])) {
1490 | $rgba = explode(',', self::$cssColors[$name]);
1491 |
1492 | if(isset($rgba[3]))
1493 | return array('color', $rgba[0], $rgba[1], $rgba[2], $rgba[3]);
1494 |
1495 | return array('color', $rgba[0], $rgba[1], $rgba[2]);
1496 | }
1497 | return null;
1498 | }
1499 | }
1500 |
1501 | // make something string like into a string
1502 | protected function coerceString($value) {
1503 | switch ($value[0]) {
1504 | case "string":
1505 | return $value;
1506 | case "keyword":
1507 | return array("string", "", array($value[1]));
1508 | }
1509 | return null;
1510 | }
1511 |
1512 | // turn list of length 1 into value type
1513 | protected function flattenList($value) {
1514 | if ($value[0] == "list" && count($value[2]) == 1) {
1515 | return $this->flattenList($value[2][0]);
1516 | }
1517 | return $value;
1518 | }
1519 |
1520 | protected function toBool($a) {
1521 | if ($a) return self::$TRUE;
1522 | else return self::$FALSE;
1523 | }
1524 |
1525 | // evaluate an expression
1526 | protected function evaluate($exp) {
1527 | list(, $op, $left, $right, $whiteBefore, $whiteAfter) = $exp;
1528 |
1529 | $left = $this->reduce($left, true);
1530 | $right = $this->reduce($right, true);
1531 |
1532 | if ($leftColor = $this->coerceColor($left)) {
1533 | $left = $leftColor;
1534 | }
1535 |
1536 | if ($rightColor = $this->coerceColor($right)) {
1537 | $right = $rightColor;
1538 | }
1539 |
1540 | $ltype = $left[0];
1541 | $rtype = $right[0];
1542 |
1543 | // operators that work on all types
1544 | if ($op == "and") {
1545 | return $this->toBool($left == self::$TRUE && $right == self::$TRUE);
1546 | }
1547 |
1548 | if ($op == "=") {
1549 | return $this->toBool($this->eq($left, $right) );
1550 | }
1551 |
1552 | if ($op == "+" && !is_null($str = $this->stringConcatenate($left, $right))) {
1553 | return $str;
1554 | }
1555 |
1556 | // type based operators
1557 | $fname = "op_${ltype}_${rtype}";
1558 | if (is_callable(array($this, $fname))) {
1559 | $out = $this->$fname($op, $left, $right);
1560 | if (!is_null($out)) return $out;
1561 | }
1562 |
1563 | // make the expression look it did before being parsed
1564 | $paddedOp = $op;
1565 | if ($whiteBefore) $paddedOp = " " . $paddedOp;
1566 | if ($whiteAfter) $paddedOp .= " ";
1567 |
1568 | return array("string", "", array($left, $paddedOp, $right));
1569 | }
1570 |
1571 | protected function stringConcatenate($left, $right) {
1572 | if ($strLeft = $this->coerceString($left)) {
1573 | if ($right[0] == "string") {
1574 | $right[1] = "";
1575 | }
1576 | $strLeft[2][] = $right;
1577 | return $strLeft;
1578 | }
1579 |
1580 | if ($strRight = $this->coerceString($right)) {
1581 | array_unshift($strRight[2], $left);
1582 | return $strRight;
1583 | }
1584 | }
1585 |
1586 |
1587 | // make sure a color's components don't go out of bounds
1588 | protected function fixColor($c) {
1589 | foreach (range(1, 3) as $i) {
1590 | if ($c[$i] < 0) $c[$i] = 0;
1591 | if ($c[$i] > 255) $c[$i] = 255;
1592 | }
1593 |
1594 | return $c;
1595 | }
1596 |
1597 | protected function op_number_color($op, $lft, $rgt) {
1598 | if ($op == '+' || $op == '*') {
1599 | return $this->op_color_number($op, $rgt, $lft);
1600 | }
1601 | }
1602 |
1603 | protected function op_color_number($op, $lft, $rgt) {
1604 | if ($rgt[0] == '%') $rgt[1] /= 100;
1605 |
1606 | return $this->op_color_color($op, $lft,
1607 | array_fill(1, count($lft) - 1, $rgt[1]));
1608 | }
1609 |
1610 | protected function op_color_color($op, $left, $right) {
1611 | $out = array('color');
1612 | $max = count($left) > count($right) ? count($left) : count($right);
1613 | foreach (range(1, $max - 1) as $i) {
1614 | $lval = isset($left[$i]) ? $left[$i] : 0;
1615 | $rval = isset($right[$i]) ? $right[$i] : 0;
1616 | switch ($op) {
1617 | case '+':
1618 | $out[] = $lval + $rval;
1619 | break;
1620 | case '-':
1621 | $out[] = $lval - $rval;
1622 | break;
1623 | case '*':
1624 | $out[] = $lval * $rval;
1625 | break;
1626 | case '%':
1627 | $out[] = $lval % $rval;
1628 | break;
1629 | case '/':
1630 | if ($rval == 0) $this->throwError("evaluate error: can't divide by zero");
1631 | $out[] = $lval / $rval;
1632 | break;
1633 | default:
1634 | $this->throwError('evaluate error: color op number failed on op '.$op);
1635 | }
1636 | }
1637 | return $this->fixColor($out);
1638 | }
1639 |
1640 | function lib_red($color){
1641 | $color = $this->coerceColor($color);
1642 | if (is_null($color)) {
1643 | $this->throwError('color expected for red()');
1644 | }
1645 |
1646 | return $color[1];
1647 | }
1648 |
1649 | function lib_green($color){
1650 | $color = $this->coerceColor($color);
1651 | if (is_null($color)) {
1652 | $this->throwError('color expected for green()');
1653 | }
1654 |
1655 | return $color[2];
1656 | }
1657 |
1658 | function lib_blue($color){
1659 | $color = $this->coerceColor($color);
1660 | if (is_null($color)) {
1661 | $this->throwError('color expected for blue()');
1662 | }
1663 |
1664 | return $color[3];
1665 | }
1666 |
1667 |
1668 | // operator on two numbers
1669 | protected function op_number_number($op, $left, $right) {
1670 | $unit = empty($left[2]) ? $right[2] : $left[2];
1671 |
1672 | $value = 0;
1673 | switch ($op) {
1674 | case '+':
1675 | $value = $left[1] + $right[1];
1676 | break;
1677 | case '*':
1678 | $value = $left[1] * $right[1];
1679 | break;
1680 | case '-':
1681 | $value = $left[1] - $right[1];
1682 | break;
1683 | case '%':
1684 | $value = $left[1] % $right[1];
1685 | break;
1686 | case '/':
1687 | if ($right[1] == 0) $this->throwError('parse error: divide by zero');
1688 | $value = $left[1] / $right[1];
1689 | break;
1690 | case '<':
1691 | return $this->toBool($left[1] < $right[1]);
1692 | case '>':
1693 | return $this->toBool($left[1] > $right[1]);
1694 | case '>=':
1695 | return $this->toBool($left[1] >= $right[1]);
1696 | case '=<':
1697 | return $this->toBool($left[1] <= $right[1]);
1698 | default:
1699 | $this->throwError('parse error: unknown number operator: '.$op);
1700 | }
1701 |
1702 | return array("number", $value, $unit);
1703 | }
1704 |
1705 |
1706 | /* environment functions */
1707 |
1708 | protected function makeOutputBlock($type, $selectors = null) {
1709 | $b = new stdclass;
1710 | $b->lines = array();
1711 | $b->children = array();
1712 | $b->selectors = $selectors;
1713 | $b->type = $type;
1714 | $b->parent = $this->scope;
1715 | return $b;
1716 | }
1717 |
1718 | // the state of execution
1719 | protected function pushEnv($block = null) {
1720 | $e = new stdclass;
1721 | $e->parent = $this->env;
1722 | $e->store = array();
1723 | $e->block = $block;
1724 |
1725 | $this->env = $e;
1726 | return $e;
1727 | }
1728 |
1729 | // pop something off the stack
1730 | protected function popEnv() {
1731 | $old = $this->env;
1732 | $this->env = $this->env->parent;
1733 | return $old;
1734 | }
1735 |
1736 | // set something in the current env
1737 | protected function set($name, $value) {
1738 | $this->env->store[$name] = $value;
1739 | }
1740 |
1741 |
1742 | // get the highest occurrence entry for a name
1743 | protected function get($name, $default=null) {
1744 | $current = $this->env;
1745 |
1746 | $isArguments = $name == $this->vPrefix . 'arguments';
1747 | while ($current) {
1748 | if ($isArguments && isset($current->arguments)) {
1749 | return array('list', ' ', $current->arguments);
1750 | }
1751 |
1752 | if (isset($current->store[$name]))
1753 | return $current->store[$name];
1754 | else {
1755 | $current = isset($current->storeParent) ?
1756 | $current->storeParent : $current->parent;
1757 | }
1758 | }
1759 |
1760 | return $default;
1761 | }
1762 |
1763 | // inject array of unparsed strings into environment as variables
1764 | protected function injectVariables($args) {
1765 | $this->pushEnv();
1766 | $parser = new lessc_parser($this, __METHOD__);
1767 | foreach ($args as $name => $strValue) {
1768 | if ($name{0} != '@') $name = '@'.$name;
1769 | $parser->count = 0;
1770 | $parser->buffer = (string)$strValue;
1771 | if (!$parser->propertyValue($value)) {
1772 | throw new Exception("failed to parse passed in variable $name: $strValue");
1773 | }
1774 |
1775 | $this->set($name, $value);
1776 | }
1777 | }
1778 |
1779 | /**
1780 | * Initialize any static state, can initialize parser for a file
1781 | * $opts isn't used yet
1782 | */
1783 | public function __construct($fname = null) {
1784 | if ($fname !== null) {
1785 | // used for deprecated parse method
1786 | $this->_parseFile = $fname;
1787 | }
1788 | }
1789 |
1790 | public function compile($string, $name = null) {
1791 | $locale = setlocale(LC_NUMERIC, 0);
1792 | setlocale(LC_NUMERIC, "C");
1793 |
1794 | $this->parser = $this->makeParser($name);
1795 | $root = $this->parser->parse($string);
1796 |
1797 | $this->env = null;
1798 | $this->scope = null;
1799 |
1800 | $this->formatter = $this->newFormatter();
1801 |
1802 | if (!empty($this->registeredVars)) {
1803 | $this->injectVariables($this->registeredVars);
1804 | }
1805 |
1806 | $this->sourceParser = $this->parser; // used for error messages
1807 | $this->compileBlock($root);
1808 |
1809 | ob_start();
1810 | $this->formatter->block($this->scope);
1811 | $out = ob_get_clean();
1812 | setlocale(LC_NUMERIC, $locale);
1813 | return $out;
1814 | }
1815 |
1816 | public function compileFile($fname, $outFname = null) {
1817 | if (!is_readable($fname)) {
1818 | throw new Exception('load error: failed to find '.$fname);
1819 | }
1820 |
1821 | $pi = pathinfo($fname);
1822 |
1823 | $oldImport = $this->importDir;
1824 |
1825 | $this->importDir = (array)$this->importDir;
1826 | $this->importDir[] = $pi['dirname'].'/';
1827 |
1828 | $this->addParsedFile($fname);
1829 |
1830 | $out = $this->compile(file_get_contents($fname), $fname);
1831 |
1832 | $this->importDir = $oldImport;
1833 |
1834 | if ($outFname !== null) {
1835 | return file_put_contents($outFname, $out);
1836 | }
1837 |
1838 | return $out;
1839 | }
1840 |
1841 | // compile only if changed input has changed or output doesn't exist
1842 | public function checkedCompile($in, $out) {
1843 | if (!is_file($out) || filemtime($in) > filemtime($out)) {
1844 | $this->compileFile($in, $out);
1845 | return true;
1846 | }
1847 | return false;
1848 | }
1849 |
1850 | /**
1851 | * Execute lessphp on a .less file or a lessphp cache structure
1852 | *
1853 | * The lessphp cache structure contains information about a specific
1854 | * less file having been parsed. It can be used as a hint for future
1855 | * calls to determine whether or not a rebuild is required.
1856 | *
1857 | * The cache structure contains two important keys that may be used
1858 | * externally:
1859 | *
1860 | * compiled: The final compiled CSS
1861 | * updated: The time (in seconds) the CSS was last compiled
1862 | *
1863 | * The cache structure is a plain-ol' PHP associative array and can
1864 | * be serialized and unserialized without a hitch.
1865 | *
1866 | * @param mixed $in Input
1867 | * @param bool $force Force rebuild?
1868 | * @return array lessphp cache structure
1869 | */
1870 | public function cachedCompile($in, $force = false) {
1871 | // assume no root
1872 | $root = null;
1873 |
1874 | if (is_string($in)) {
1875 | $root = $in;
1876 | } elseif (is_array($in) and isset($in['root'])) {
1877 | if ($force or ! isset($in['files'])) {
1878 | // If we are forcing a recompile or if for some reason the
1879 | // structure does not contain any file information we should
1880 | // specify the root to trigger a rebuild.
1881 | $root = $in['root'];
1882 | } elseif (isset($in['files']) and is_array($in['files'])) {
1883 | foreach ($in['files'] as $fname => $ftime ) {
1884 | if (!file_exists($fname) or filemtime($fname) > $ftime) {
1885 | // One of the files we knew about previously has changed
1886 | // so we should look at our incoming root again.
1887 | $root = $in['root'];
1888 | break;
1889 | }
1890 | }
1891 | }
1892 | } else {
1893 | // TODO: Throw an exception? We got neither a string nor something
1894 | // that looks like a compatible lessphp cache structure.
1895 | return null;
1896 | }
1897 |
1898 | if ($root !== null) {
1899 | // If we have a root value which means we should rebuild.
1900 | $out = array();
1901 | $out['root'] = $root;
1902 | $out['compiled'] = $this->compileFile($root);
1903 | $out['files'] = $this->allParsedFiles();
1904 | $out['updated'] = time();
1905 | return $out;
1906 | } else {
1907 | // No changes, pass back the structure
1908 | // we were given initially.
1909 | return $in;
1910 | }
1911 |
1912 | }
1913 |
1914 | // parse and compile buffer
1915 | // This is deprecated
1916 | public function parse($str = null, $initialVariables = null) {
1917 | if (is_array($str)) {
1918 | $initialVariables = $str;
1919 | $str = null;
1920 | }
1921 |
1922 | $oldVars = $this->registeredVars;
1923 | if ($initialVariables !== null) {
1924 | $this->setVariables($initialVariables);
1925 | }
1926 |
1927 | if ($str == null) {
1928 | if (empty($this->_parseFile)) {
1929 | throw new exception("nothing to parse");
1930 | }
1931 |
1932 | $out = $this->compileFile($this->_parseFile);
1933 | } else {
1934 | $out = $this->compile($str);
1935 | }
1936 |
1937 | $this->registeredVars = $oldVars;
1938 | return $out;
1939 | }
1940 |
1941 | protected function makeParser($name) {
1942 | $parser = new lessc_parser($this, $name);
1943 | $parser->writeComments = $this->preserveComments;
1944 |
1945 | return $parser;
1946 | }
1947 |
1948 | public function setFormatter($name) {
1949 | $this->formatterName = $name;
1950 | }
1951 |
1952 | protected function newFormatter() {
1953 | $className = "lessc_formatter_lessjs";
1954 | if (!empty($this->formatterName)) {
1955 | if (!is_string($this->formatterName))
1956 | return $this->formatterName;
1957 | $className = "lessc_formatter_$this->formatterName";
1958 | }
1959 |
1960 | return new $className;
1961 | }
1962 |
1963 | public function setPreserveComments($preserve) {
1964 | $this->preserveComments = $preserve;
1965 | }
1966 |
1967 | public function registerFunction($name, $func) {
1968 | $this->libFunctions[$name] = $func;
1969 | }
1970 |
1971 | public function unregisterFunction($name) {
1972 | unset($this->libFunctions[$name]);
1973 | }
1974 |
1975 | public function setVariables($variables) {
1976 | $this->registeredVars = array_merge($this->registeredVars, $variables);
1977 | }
1978 |
1979 | public function unsetVariable($name) {
1980 | unset($this->registeredVars[$name]);
1981 | }
1982 |
1983 | public function setImportDir($dirs) {
1984 | $this->importDir = (array)$dirs;
1985 | }
1986 |
1987 | public function addImportDir($dir) {
1988 | $this->importDir = (array)$this->importDir;
1989 | $this->importDir[] = $dir;
1990 | }
1991 |
1992 | public function allParsedFiles() {
1993 | return $this->allParsedFiles;
1994 | }
1995 |
1996 | protected function addParsedFile($file) {
1997 | $this->allParsedFiles[realpath($file)] = filemtime($file);
1998 | }
1999 |
2000 | /**
2001 | * Uses the current value of $this->count to show line and line number
2002 | */
2003 | protected function throwError($msg = null) {
2004 | if ($this->sourceLoc >= 0) {
2005 | $this->sourceParser->throwError($msg, $this->sourceLoc);
2006 | }
2007 | throw new exception($msg);
2008 | }
2009 |
2010 | // compile file $in to file $out if $in is newer than $out
2011 | // returns true when it compiles, false otherwise
2012 | public static function ccompile($in, $out, $less = null) {
2013 | if ($less === null) {
2014 | $less = new self;
2015 | }
2016 | return $less->checkedCompile($in, $out);
2017 | }
2018 |
2019 | public static function cexecute($in, $force = false, $less = null) {
2020 | if ($less === null) {
2021 | $less = new self;
2022 | }
2023 | return $less->cachedCompile($in, $force);
2024 | }
2025 |
2026 | static protected $cssColors = array(
2027 | 'aliceblue' => '240,248,255',
2028 | 'antiquewhite' => '250,235,215',
2029 | 'aqua' => '0,255,255',
2030 | 'aquamarine' => '127,255,212',
2031 | 'azure' => '240,255,255',
2032 | 'beige' => '245,245,220',
2033 | 'bisque' => '255,228,196',
2034 | 'black' => '0,0,0',
2035 | 'blanchedalmond' => '255,235,205',
2036 | 'blue' => '0,0,255',
2037 | 'blueviolet' => '138,43,226',
2038 | 'brown' => '165,42,42',
2039 | 'burlywood' => '222,184,135',
2040 | 'cadetblue' => '95,158,160',
2041 | 'chartreuse' => '127,255,0',
2042 | 'chocolate' => '210,105,30',
2043 | 'coral' => '255,127,80',
2044 | 'cornflowerblue' => '100,149,237',
2045 | 'cornsilk' => '255,248,220',
2046 | 'crimson' => '220,20,60',
2047 | 'cyan' => '0,255,255',
2048 | 'darkblue' => '0,0,139',
2049 | 'darkcyan' => '0,139,139',
2050 | 'darkgoldenrod' => '184,134,11',
2051 | 'darkgray' => '169,169,169',
2052 | 'darkgreen' => '0,100,0',
2053 | 'darkgrey' => '169,169,169',
2054 | 'darkkhaki' => '189,183,107',
2055 | 'darkmagenta' => '139,0,139',
2056 | 'darkolivegreen' => '85,107,47',
2057 | 'darkorange' => '255,140,0',
2058 | 'darkorchid' => '153,50,204',
2059 | 'darkred' => '139,0,0',
2060 | 'darksalmon' => '233,150,122',
2061 | 'darkseagreen' => '143,188,143',
2062 | 'darkslateblue' => '72,61,139',
2063 | 'darkslategray' => '47,79,79',
2064 | 'darkslategrey' => '47,79,79',
2065 | 'darkturquoise' => '0,206,209',
2066 | 'darkviolet' => '148,0,211',
2067 | 'deeppink' => '255,20,147',
2068 | 'deepskyblue' => '0,191,255',
2069 | 'dimgray' => '105,105,105',
2070 | 'dimgrey' => '105,105,105',
2071 | 'dodgerblue' => '30,144,255',
2072 | 'firebrick' => '178,34,34',
2073 | 'floralwhite' => '255,250,240',
2074 | 'forestgreen' => '34,139,34',
2075 | 'fuchsia' => '255,0,255',
2076 | 'gainsboro' => '220,220,220',
2077 | 'ghostwhite' => '248,248,255',
2078 | 'gold' => '255,215,0',
2079 | 'goldenrod' => '218,165,32',
2080 | 'gray' => '128,128,128',
2081 | 'green' => '0,128,0',
2082 | 'greenyellow' => '173,255,47',
2083 | 'grey' => '128,128,128',
2084 | 'honeydew' => '240,255,240',
2085 | 'hotpink' => '255,105,180',
2086 | 'indianred' => '205,92,92',
2087 | 'indigo' => '75,0,130',
2088 | 'ivory' => '255,255,240',
2089 | 'khaki' => '240,230,140',
2090 | 'lavender' => '230,230,250',
2091 | 'lavenderblush' => '255,240,245',
2092 | 'lawngreen' => '124,252,0',
2093 | 'lemonchiffon' => '255,250,205',
2094 | 'lightblue' => '173,216,230',
2095 | 'lightcoral' => '240,128,128',
2096 | 'lightcyan' => '224,255,255',
2097 | 'lightgoldenrodyellow' => '250,250,210',
2098 | 'lightgray' => '211,211,211',
2099 | 'lightgreen' => '144,238,144',
2100 | 'lightgrey' => '211,211,211',
2101 | 'lightpink' => '255,182,193',
2102 | 'lightsalmon' => '255,160,122',
2103 | 'lightseagreen' => '32,178,170',
2104 | 'lightskyblue' => '135,206,250',
2105 | 'lightslategray' => '119,136,153',
2106 | 'lightslategrey' => '119,136,153',
2107 | 'lightsteelblue' => '176,196,222',
2108 | 'lightyellow' => '255,255,224',
2109 | 'lime' => '0,255,0',
2110 | 'limegreen' => '50,205,50',
2111 | 'linen' => '250,240,230',
2112 | 'magenta' => '255,0,255',
2113 | 'maroon' => '128,0,0',
2114 | 'mediumaquamarine' => '102,205,170',
2115 | 'mediumblue' => '0,0,205',
2116 | 'mediumorchid' => '186,85,211',
2117 | 'mediumpurple' => '147,112,219',
2118 | 'mediumseagreen' => '60,179,113',
2119 | 'mediumslateblue' => '123,104,238',
2120 | 'mediumspringgreen' => '0,250,154',
2121 | 'mediumturquoise' => '72,209,204',
2122 | 'mediumvioletred' => '199,21,133',
2123 | 'midnightblue' => '25,25,112',
2124 | 'mintcream' => '245,255,250',
2125 | 'mistyrose' => '255,228,225',
2126 | 'moccasin' => '255,228,181',
2127 | 'navajowhite' => '255,222,173',
2128 | 'navy' => '0,0,128',
2129 | 'oldlace' => '253,245,230',
2130 | 'olive' => '128,128,0',
2131 | 'olivedrab' => '107,142,35',
2132 | 'orange' => '255,165,0',
2133 | 'orangered' => '255,69,0',
2134 | 'orchid' => '218,112,214',
2135 | 'palegoldenrod' => '238,232,170',
2136 | 'palegreen' => '152,251,152',
2137 | 'paleturquoise' => '175,238,238',
2138 | 'palevioletred' => '219,112,147',
2139 | 'papayawhip' => '255,239,213',
2140 | 'peachpuff' => '255,218,185',
2141 | 'peru' => '205,133,63',
2142 | 'pink' => '255,192,203',
2143 | 'plum' => '221,160,221',
2144 | 'powderblue' => '176,224,230',
2145 | 'purple' => '128,0,128',
2146 | 'red' => '255,0,0',
2147 | 'rosybrown' => '188,143,143',
2148 | 'royalblue' => '65,105,225',
2149 | 'saddlebrown' => '139,69,19',
2150 | 'salmon' => '250,128,114',
2151 | 'sandybrown' => '244,164,96',
2152 | 'seagreen' => '46,139,87',
2153 | 'seashell' => '255,245,238',
2154 | 'sienna' => '160,82,45',
2155 | 'silver' => '192,192,192',
2156 | 'skyblue' => '135,206,235',
2157 | 'slateblue' => '106,90,205',
2158 | 'slategray' => '112,128,144',
2159 | 'slategrey' => '112,128,144',
2160 | 'snow' => '255,250,250',
2161 | 'springgreen' => '0,255,127',
2162 | 'steelblue' => '70,130,180',
2163 | 'tan' => '210,180,140',
2164 | 'teal' => '0,128,128',
2165 | 'thistle' => '216,191,216',
2166 | 'tomato' => '255,99,71',
2167 | 'transparent' => '0,0,0,0',
2168 | 'turquoise' => '64,224,208',
2169 | 'violet' => '238,130,238',
2170 | 'wheat' => '245,222,179',
2171 | 'white' => '255,255,255',
2172 | 'whitesmoke' => '245,245,245',
2173 | 'yellow' => '255,255,0',
2174 | 'yellowgreen' => '154,205,50'
2175 | );
2176 | }
2177 |
2178 | // responsible for taking a string of LESS code and converting it into a
2179 | // syntax tree
2180 | class lessc_parser {
2181 | static protected $nextBlockId = 0; // used to uniquely identify blocks
2182 |
2183 | static protected $precedence = array(
2184 | '=<' => 0,
2185 | '>=' => 0,
2186 | '=' => 0,
2187 | '<' => 0,
2188 | '>' => 0,
2189 |
2190 | '+' => 1,
2191 | '-' => 1,
2192 | '*' => 2,
2193 | '/' => 2,
2194 | '%' => 2,
2195 | );
2196 |
2197 | static protected $whitePattern;
2198 | static protected $commentMulti;
2199 |
2200 | static protected $commentSingle = "//";
2201 | static protected $commentMultiLeft = "/*";
2202 | static protected $commentMultiRight = "*/";
2203 |
2204 | // regex string to match any of the operators
2205 | static protected $operatorString;
2206 |
2207 | // these properties will supress division unless it's inside parenthases
2208 | static protected $supressDivisionProps =
2209 | array('/border-radius$/i', '/^font$/i');
2210 |
2211 | protected $blockDirectives = array("font-face", "keyframes", "page", "-moz-document", "viewport", "-moz-viewport", "-o-viewport", "-ms-viewport");
2212 | protected $lineDirectives = array("charset");
2213 |
2214 | /**
2215 | * if we are in parens we can be more liberal with whitespace around
2216 | * operators because it must evaluate to a single value and thus is less
2217 | * ambiguous.
2218 | *
2219 | * Consider:
2220 | * property1: 10 -5; // is two numbers, 10 and -5
2221 | * property2: (10 -5); // should evaluate to 5
2222 | */
2223 | protected $inParens = false;
2224 |
2225 | // caches preg escaped literals
2226 | static protected $literalCache = array();
2227 |
2228 | public function __construct($lessc, $sourceName = null) {
2229 | $this->eatWhiteDefault = true;
2230 | // reference to less needed for vPrefix, mPrefix, and parentSelector
2231 | $this->lessc = $lessc;
2232 |
2233 | $this->sourceName = $sourceName; // name used for error messages
2234 |
2235 | $this->writeComments = false;
2236 |
2237 | if (!self::$operatorString) {
2238 | self::$operatorString =
2239 | '('.implode('|', array_map(array('lessc', 'preg_quote'),
2240 | array_keys(self::$precedence))).')';
2241 |
2242 | $commentSingle = lessc::preg_quote(self::$commentSingle);
2243 | $commentMultiLeft = lessc::preg_quote(self::$commentMultiLeft);
2244 | $commentMultiRight = lessc::preg_quote(self::$commentMultiRight);
2245 |
2246 | self::$commentMulti = $commentMultiLeft.'.*?'.$commentMultiRight;
2247 | self::$whitePattern = '/'.$commentSingle.'[^\n]*\s*|('.self::$commentMulti.')\s*|\s+/Ais';
2248 | }
2249 | }
2250 |
2251 | public function parse($buffer) {
2252 | $this->count = 0;
2253 | $this->line = 1;
2254 |
2255 | $this->env = null; // block stack
2256 | $this->buffer = $this->writeComments ? $buffer : $this->removeComments($buffer);
2257 | $this->pushSpecialBlock("root");
2258 | $this->eatWhiteDefault = true;
2259 | $this->seenComments = array();
2260 |
2261 | // trim whitespace on head
2262 | // if (preg_match('/^\s+/', $this->buffer, $m)) {
2263 | // $this->line += substr_count($m[0], "\n");
2264 | // $this->buffer = ltrim($this->buffer);
2265 | // }
2266 | $this->whitespace();
2267 |
2268 | // parse the entire file
2269 | $lastCount = $this->count;
2270 | while (false !== $this->parseChunk());
2271 |
2272 | if ($this->count != strlen($this->buffer))
2273 | $this->throwError();
2274 |
2275 | // TODO report where the block was opened
2276 | if (!is_null($this->env->parent))
2277 | throw new exception('parse error: unclosed block');
2278 |
2279 | return $this->env;
2280 | }
2281 |
2282 | /**
2283 | * Parse a single chunk off the head of the buffer and append it to the
2284 | * current parse environment.
2285 | * Returns false when the buffer is empty, or when there is an error.
2286 | *
2287 | * This function is called repeatedly until the entire document is
2288 | * parsed.
2289 | *
2290 | * This parser is most similar to a recursive descent parser. Single
2291 | * functions represent discrete grammatical rules for the language, and
2292 | * they are able to capture the text that represents those rules.
2293 | *
2294 | * Consider the function lessc::keyword(). (all parse functions are
2295 | * structured the same)
2296 | *
2297 | * The function takes a single reference argument. When calling the
2298 | * function it will attempt to match a keyword on the head of the buffer.
2299 | * If it is successful, it will place the keyword in the referenced
2300 | * argument, advance the position in the buffer, and return true. If it
2301 | * fails then it won't advance the buffer and it will return false.
2302 | *
2303 | * All of these parse functions are powered by lessc::match(), which behaves
2304 | * the same way, but takes a literal regular expression. Sometimes it is
2305 | * more convenient to use match instead of creating a new function.
2306 | *
2307 | * Because of the format of the functions, to parse an entire string of
2308 | * grammatical rules, you can chain them together using &&.
2309 | *
2310 | * But, if some of the rules in the chain succeed before one fails, then
2311 | * the buffer position will be left at an invalid state. In order to
2312 | * avoid this, lessc::seek() is used to remember and set buffer positions.
2313 | *
2314 | * Before parsing a chain, use $s = $this->seek() to remember the current
2315 | * position into $s. Then if a chain fails, use $this->seek($s) to
2316 | * go back where we started.
2317 | */
2318 | protected function parseChunk() {
2319 | if (empty($this->buffer)) return false;
2320 | $s = $this->seek();
2321 |
2322 | // setting a property
2323 | if ($this->keyword($key) && $this->assign() &&
2324 | $this->propertyValue($value, $key) && $this->end())
2325 | {
2326 | $this->append(array('assign', $key, $value), $s);
2327 | return true;
2328 | } else {
2329 | $this->seek($s);
2330 | }
2331 |
2332 |
2333 | // look for special css blocks
2334 | if ($this->literal('@', false)) {
2335 | $this->count--;
2336 |
2337 | // media
2338 | if ($this->literal('@media')) {
2339 | if (($this->mediaQueryList($mediaQueries) || true)
2340 | && $this->literal('{'))
2341 | {
2342 | $media = $this->pushSpecialBlock("media");
2343 | $media->queries = is_null($mediaQueries) ? array() : $mediaQueries;
2344 | return true;
2345 | } else {
2346 | $this->seek($s);
2347 | return false;
2348 | }
2349 | }
2350 |
2351 | if ($this->literal("@", false) && $this->keyword($dirName)) {
2352 | if ($this->isDirective($dirName, $this->blockDirectives)) {
2353 | if (($this->openString("{", $dirValue, null, array(";")) || true) &&
2354 | $this->literal("{"))
2355 | {
2356 | $dir = $this->pushSpecialBlock("directive");
2357 | $dir->name = $dirName;
2358 | if (isset($dirValue)) $dir->value = $dirValue;
2359 | return true;
2360 | }
2361 | } elseif ($this->isDirective($dirName, $this->lineDirectives)) {
2362 | if ($this->propertyValue($dirValue) && $this->end()) {
2363 | $this->append(array("directive", $dirName, $dirValue));
2364 | return true;
2365 | }
2366 | }
2367 | }
2368 |
2369 | $this->seek($s);
2370 | }
2371 |
2372 | // setting a variable
2373 | if ($this->variable($var) && $this->assign() &&
2374 | $this->propertyValue($value) && $this->end())
2375 | {
2376 | $this->append(array('assign', $var, $value), $s);
2377 | return true;
2378 | } else {
2379 | $this->seek($s);
2380 | }
2381 |
2382 | if ($this->import($importValue)) {
2383 | $this->append($importValue, $s);
2384 | return true;
2385 | }
2386 |
2387 | // opening parametric mixin
2388 | if ($this->tag($tag, true) && $this->argumentDef($args, $isVararg) &&
2389 | ($this->guards($guards) || true) &&
2390 | $this->literal('{'))
2391 | {
2392 | $block = $this->pushBlock($this->fixTags(array($tag)));
2393 | $block->args = $args;
2394 | $block->isVararg = $isVararg;
2395 | if (!empty($guards)) $block->guards = $guards;
2396 | return true;
2397 | } else {
2398 | $this->seek($s);
2399 | }
2400 |
2401 | // opening a simple block
2402 | if ($this->tags($tags) && $this->literal('{')) {
2403 | $tags = $this->fixTags($tags);
2404 | $this->pushBlock($tags);
2405 | return true;
2406 | } else {
2407 | $this->seek($s);
2408 | }
2409 |
2410 | // closing a block
2411 | if ($this->literal('}', false)) {
2412 | try {
2413 | $block = $this->pop();
2414 | } catch (exception $e) {
2415 | $this->seek($s);
2416 | $this->throwError($e->getMessage());
2417 | }
2418 |
2419 | $hidden = false;
2420 | if (is_null($block->type)) {
2421 | $hidden = true;
2422 | if (!isset($block->args)) {
2423 | foreach ($block->tags as $tag) {
2424 | if (!is_string($tag) || $tag{0} != $this->lessc->mPrefix) {
2425 | $hidden = false;
2426 | break;
2427 | }
2428 | }
2429 | }
2430 |
2431 | foreach ($block->tags as $tag) {
2432 | if (is_string($tag)) {
2433 | $this->env->children[$tag][] = $block;
2434 | }
2435 | }
2436 | }
2437 |
2438 | if (!$hidden) {
2439 | $this->append(array('block', $block), $s);
2440 | }
2441 |
2442 | // this is done here so comments aren't bundled into he block that
2443 | // was just closed
2444 | $this->whitespace();
2445 | return true;
2446 | }
2447 |
2448 | // mixin
2449 | if ($this->mixinTags($tags) &&
2450 | ($this->argumentDef($argv, $isVararg) || true) &&
2451 | ($this->keyword($suffix) || true) && $this->end())
2452 | {
2453 | $tags = $this->fixTags($tags);
2454 | $this->append(array('mixin', $tags, $argv, $suffix), $s);
2455 | return true;
2456 | } else {
2457 | $this->seek($s);
2458 | }
2459 |
2460 | // spare ;
2461 | if ($this->literal(';')) return true;
2462 |
2463 | return false; // got nothing, throw error
2464 | }
2465 |
2466 | protected function isDirective($dirname, $directives) {
2467 | // TODO: cache pattern in parser
2468 | $pattern = implode("|",
2469 | array_map(array("lessc", "preg_quote"), $directives));
2470 | $pattern = '/^(-[a-z-]+-)?(' . $pattern . ')$/i';
2471 |
2472 | return preg_match($pattern, $dirname);
2473 | }
2474 |
2475 | protected function fixTags($tags) {
2476 | // move @ tags out of variable namespace
2477 | foreach ($tags as &$tag) {
2478 | if ($tag{0} == $this->lessc->vPrefix)
2479 | $tag[0] = $this->lessc->mPrefix;
2480 | }
2481 | return $tags;
2482 | }
2483 |
2484 | // a list of expressions
2485 | protected function expressionList(&$exps) {
2486 | $values = array();
2487 |
2488 | while ($this->expression($exp)) {
2489 | $values[] = $exp;
2490 | }
2491 |
2492 | if (count($values) == 0) return false;
2493 |
2494 | $exps = lessc::compressList($values, ' ');
2495 | return true;
2496 | }
2497 |
2498 | /**
2499 | * Attempt to consume an expression.
2500 | * @link http://en.wikipedia.org/wiki/Operator-precedence_parser#Pseudo-code
2501 | */
2502 | protected function expression(&$out) {
2503 | if ($this->value($lhs)) {
2504 | $out = $this->expHelper($lhs, 0);
2505 |
2506 | // look for / shorthand
2507 | if (!empty($this->env->supressedDivision)) {
2508 | unset($this->env->supressedDivision);
2509 | $s = $this->seek();
2510 | if ($this->literal("/") && $this->value($rhs)) {
2511 | $out = array("list", "",
2512 | array($out, array("keyword", "/"), $rhs));
2513 | } else {
2514 | $this->seek($s);
2515 | }
2516 | }
2517 |
2518 | return true;
2519 | }
2520 | return false;
2521 | }
2522 |
2523 | /**
2524 | * recursively parse infix equation with $lhs at precedence $minP
2525 | */
2526 | protected function expHelper($lhs, $minP) {
2527 | $this->inExp = true;
2528 | $ss = $this->seek();
2529 |
2530 | while (true) {
2531 | $whiteBefore = isset($this->buffer[$this->count - 1]) &&
2532 | ctype_space($this->buffer[$this->count - 1]);
2533 |
2534 | // If there is whitespace before the operator, then we require
2535 | // whitespace after the operator for it to be an expression
2536 | $needWhite = $whiteBefore && !$this->inParens;
2537 |
2538 | if ($this->match(self::$operatorString.($needWhite ? '\s' : ''), $m) && self::$precedence[$m[1]] >= $minP) {
2539 | if (!$this->inParens && isset($this->env->currentProperty) && $m[1] == "/" && empty($this->env->supressedDivision)) {
2540 | foreach (self::$supressDivisionProps as $pattern) {
2541 | if (preg_match($pattern, $this->env->currentProperty)) {
2542 | $this->env->supressedDivision = true;
2543 | break 2;
2544 | }
2545 | }
2546 | }
2547 |
2548 |
2549 | $whiteAfter = isset($this->buffer[$this->count - 1]) &&
2550 | ctype_space($this->buffer[$this->count - 1]);
2551 |
2552 | if (!$this->value($rhs)) break;
2553 |
2554 | // peek for next operator to see what to do with rhs
2555 | if ($this->peek(self::$operatorString, $next) && self::$precedence[$next[1]] > self::$precedence[$m[1]]) {
2556 | $rhs = $this->expHelper($rhs, self::$precedence[$next[1]]);
2557 | }
2558 |
2559 | $lhs = array('expression', $m[1], $lhs, $rhs, $whiteBefore, $whiteAfter);
2560 | $ss = $this->seek();
2561 |
2562 | continue;
2563 | }
2564 |
2565 | break;
2566 | }
2567 |
2568 | $this->seek($ss);
2569 |
2570 | return $lhs;
2571 | }
2572 |
2573 | // consume a list of values for a property
2574 | public function propertyValue(&$value, $keyName = null) {
2575 | $values = array();
2576 |
2577 | if ($keyName !== null) $this->env->currentProperty = $keyName;
2578 |
2579 | $s = null;
2580 | while ($this->expressionList($v)) {
2581 | $values[] = $v;
2582 | $s = $this->seek();
2583 | if (!$this->literal(',')) break;
2584 | }
2585 |
2586 | if ($s) $this->seek($s);
2587 |
2588 | if ($keyName !== null) unset($this->env->currentProperty);
2589 |
2590 | if (count($values) == 0) return false;
2591 |
2592 | $value = lessc::compressList($values, ', ');
2593 | return true;
2594 | }
2595 |
2596 | protected function parenValue(&$out) {
2597 | $s = $this->seek();
2598 |
2599 | // speed shortcut
2600 | if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "(") {
2601 | return false;
2602 | }
2603 |
2604 | $inParens = $this->inParens;
2605 | if ($this->literal("(") &&
2606 | ($this->inParens = true) && $this->expression($exp) &&
2607 | $this->literal(")"))
2608 | {
2609 | $out = $exp;
2610 | $this->inParens = $inParens;
2611 | return true;
2612 | } else {
2613 | $this->inParens = $inParens;
2614 | $this->seek($s);
2615 | }
2616 |
2617 | return false;
2618 | }
2619 |
2620 | // a single value
2621 | protected function value(&$value) {
2622 | $s = $this->seek();
2623 |
2624 | // speed shortcut
2625 | if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "-") {
2626 | // negation
2627 | if ($this->literal("-", false) &&
2628 | (($this->variable($inner) && $inner = array("variable", $inner)) ||
2629 | $this->unit($inner) ||
2630 | $this->parenValue($inner)))
2631 | {
2632 | $value = array("unary", "-", $inner);
2633 | return true;
2634 | } else {
2635 | $this->seek($s);
2636 | }
2637 | }
2638 |
2639 | if ($this->parenValue($value)) return true;
2640 | if ($this->unit($value)) return true;
2641 | if ($this->color($value)) return true;
2642 | if ($this->func($value)) return true;
2643 | if ($this->string($value)) return true;
2644 |
2645 | if ($this->keyword($word)) {
2646 | $value = array('keyword', $word);
2647 | return true;
2648 | }
2649 |
2650 | // try a variable
2651 | if ($this->variable($var)) {
2652 | $value = array('variable', $var);
2653 | return true;
2654 | }
2655 |
2656 | // unquote string (should this work on any type?
2657 | if ($this->literal("~") && $this->string($str)) {
2658 | $value = array("escape", $str);
2659 | return true;
2660 | } else {
2661 | $this->seek($s);
2662 | }
2663 |
2664 | // css hack: \0
2665 | if ($this->literal('\\') && $this->match('([0-9]+)', $m)) {
2666 | $value = array('keyword', '\\'.$m[1]);
2667 | return true;
2668 | } else {
2669 | $this->seek($s);
2670 | }
2671 |
2672 | return false;
2673 | }
2674 |
2675 | // an import statement
2676 | protected function import(&$out) {
2677 | $s = $this->seek();
2678 | if (!$this->literal('@import')) return false;
2679 |
2680 | // @import "something.css" media;
2681 | // @import url("something.css") media;
2682 | // @import url(something.css) media;
2683 |
2684 | if ($this->propertyValue($value)) {
2685 | $out = array("import", $value);
2686 | return true;
2687 | }
2688 | }
2689 |
2690 | protected function mediaQueryList(&$out) {
2691 | if ($this->genericList($list, "mediaQuery", ",", false)) {
2692 | $out = $list[2];
2693 | return true;
2694 | }
2695 | return false;
2696 | }
2697 |
2698 | protected function mediaQuery(&$out) {
2699 | $s = $this->seek();
2700 |
2701 | $expressions = null;
2702 | $parts = array();
2703 |
2704 | if (($this->literal("only") && ($only = true) || $this->literal("not") && ($not = true) || true) && $this->keyword($mediaType)) {
2705 | $prop = array("mediaType");
2706 | if (isset($only)) $prop[] = "only";
2707 | if (isset($not)) $prop[] = "not";
2708 | $prop[] = $mediaType;
2709 | $parts[] = $prop;
2710 | } else {
2711 | $this->seek($s);
2712 | }
2713 |
2714 |
2715 | if (!empty($mediaType) && !$this->literal("and")) {
2716 | // ~
2717 | } else {
2718 | $this->genericList($expressions, "mediaExpression", "and", false);
2719 | if (is_array($expressions)) $parts = array_merge($parts, $expressions[2]);
2720 | }
2721 |
2722 | if (count($parts) == 0) {
2723 | $this->seek($s);
2724 | return false;
2725 | }
2726 |
2727 | $out = $parts;
2728 | return true;
2729 | }
2730 |
2731 | protected function mediaExpression(&$out) {
2732 | $s = $this->seek();
2733 | $value = null;
2734 | if ($this->literal("(") &&
2735 | $this->keyword($feature) &&
2736 | ($this->literal(":") && $this->expression($value) || true) &&
2737 | $this->literal(")"))
2738 | {
2739 | $out = array("mediaExp", $feature);
2740 | if ($value) $out[] = $value;
2741 | return true;
2742 | } elseif ($this->variable($variable)) {
2743 | $out = array('variable', $variable);
2744 | return true;
2745 | }
2746 |
2747 | $this->seek($s);
2748 | return false;
2749 | }
2750 |
2751 | // an unbounded string stopped by $end
2752 | protected function openString($end, &$out, $nestingOpen=null, $rejectStrs = null) {
2753 | $oldWhite = $this->eatWhiteDefault;
2754 | $this->eatWhiteDefault = false;
2755 |
2756 | $stop = array("'", '"', "@{", $end);
2757 | $stop = array_map(array("lessc", "preg_quote"), $stop);
2758 | // $stop[] = self::$commentMulti;
2759 |
2760 | if (!is_null($rejectStrs)) {
2761 | $stop = array_merge($stop, $rejectStrs);
2762 | }
2763 |
2764 | $patt = '(.*?)('.implode("|", $stop).')';
2765 |
2766 | $nestingLevel = 0;
2767 |
2768 | $content = array();
2769 | while ($this->match($patt, $m, false)) {
2770 | if (!empty($m[1])) {
2771 | $content[] = $m[1];
2772 | if ($nestingOpen) {
2773 | $nestingLevel += substr_count($m[1], $nestingOpen);
2774 | }
2775 | }
2776 |
2777 | $tok = $m[2];
2778 |
2779 | $this->count-= strlen($tok);
2780 | if ($tok == $end) {
2781 | if ($nestingLevel == 0) {
2782 | break;
2783 | } else {
2784 | $nestingLevel--;
2785 | }
2786 | }
2787 |
2788 | if (($tok == "'" || $tok == '"') && $this->string($str)) {
2789 | $content[] = $str;
2790 | continue;
2791 | }
2792 |
2793 | if ($tok == "@{" && $this->interpolation($inter)) {
2794 | $content[] = $inter;
2795 | continue;
2796 | }
2797 |
2798 | if (!empty($rejectStrs) && in_array($tok, $rejectStrs)) {
2799 | break;
2800 | }
2801 |
2802 | $content[] = $tok;
2803 | $this->count+= strlen($tok);
2804 | }
2805 |
2806 | $this->eatWhiteDefault = $oldWhite;
2807 |
2808 | if (count($content) == 0) return false;
2809 |
2810 | // trim the end
2811 | if (is_string(end($content))) {
2812 | $content[count($content) - 1] = rtrim(end($content));
2813 | }
2814 |
2815 | $out = array("string", "", $content);
2816 | return true;
2817 | }
2818 |
2819 | protected function string(&$out) {
2820 | $s = $this->seek();
2821 | if ($this->literal('"', false)) {
2822 | $delim = '"';
2823 | } elseif ($this->literal("'", false)) {
2824 | $delim = "'";
2825 | } else {
2826 | return false;
2827 | }
2828 |
2829 | $content = array();
2830 |
2831 | // look for either ending delim , escape, or string interpolation
2832 | $patt = '([^\n]*?)(@\{|\\\\|' .
2833 | lessc::preg_quote($delim).')';
2834 |
2835 | $oldWhite = $this->eatWhiteDefault;
2836 | $this->eatWhiteDefault = false;
2837 |
2838 | while ($this->match($patt, $m, false)) {
2839 | $content[] = $m[1];
2840 | if ($m[2] == "@{") {
2841 | $this->count -= strlen($m[2]);
2842 | if ($this->interpolation($inter, false)) {
2843 | $content[] = $inter;
2844 | } else {
2845 | $this->count += strlen($m[2]);
2846 | $content[] = "@{"; // ignore it
2847 | }
2848 | } elseif ($m[2] == '\\') {
2849 | $content[] = $m[2];
2850 | if ($this->literal($delim, false)) {
2851 | $content[] = $delim;
2852 | }
2853 | } else {
2854 | $this->count -= strlen($delim);
2855 | break; // delim
2856 | }
2857 | }
2858 |
2859 | $this->eatWhiteDefault = $oldWhite;
2860 |
2861 | if ($this->literal($delim)) {
2862 | $out = array("string", $delim, $content);
2863 | return true;
2864 | }
2865 |
2866 | $this->seek($s);
2867 | return false;
2868 | }
2869 |
2870 | protected function interpolation(&$out) {
2871 | $oldWhite = $this->eatWhiteDefault;
2872 | $this->eatWhiteDefault = true;
2873 |
2874 | $s = $this->seek();
2875 | if ($this->literal("@{") &&
2876 | $this->openString("}", $interp, null, array("'", '"', ";")) &&
2877 | $this->literal("}", false))
2878 | {
2879 | $out = array("interpolate", $interp);
2880 | $this->eatWhiteDefault = $oldWhite;
2881 | if ($this->eatWhiteDefault) $this->whitespace();
2882 | return true;
2883 | }
2884 |
2885 | $this->eatWhiteDefault = $oldWhite;
2886 | $this->seek($s);
2887 | return false;
2888 | }
2889 |
2890 | protected function unit(&$unit) {
2891 | // speed shortcut
2892 | if (isset($this->buffer[$this->count])) {
2893 | $char = $this->buffer[$this->count];
2894 | if (!ctype_digit($char) && $char != ".") return false;
2895 | }
2896 |
2897 | if ($this->match('([0-9]+(?:\.[0-9]*)?|\.[0-9]+)([%a-zA-Z]+)?', $m)) {
2898 | $unit = array("number", $m[1], empty($m[2]) ? "" : $m[2]);
2899 | return true;
2900 | }
2901 | return false;
2902 | }
2903 |
2904 | // a # color
2905 | protected function color(&$out) {
2906 | if ($this->match('(#(?:[0-9a-f]{8}|[0-9a-f]{6}|[0-9a-f]{3}))', $m)) {
2907 | if (strlen($m[1]) > 7) {
2908 | $out = array("string", "", array($m[1]));
2909 | } else {
2910 | $out = array("raw_color", $m[1]);
2911 | }
2912 | return true;
2913 | }
2914 |
2915 | return false;
2916 | }
2917 |
2918 | // consume an argument definition list surrounded by ()
2919 | // each argument is a variable name with optional value
2920 | // or at the end a ... or a variable named followed by ...
2921 | // arguments are separated by , unless a ; is in the list, then ; is the
2922 | // delimiter.
2923 | protected function argumentDef(&$args, &$isVararg) {
2924 | $s = $this->seek();
2925 | if (!$this->literal('(')) return false;
2926 |
2927 | $values = array();
2928 | $delim = ",";
2929 | $method = "expressionList";
2930 |
2931 | $isVararg = false;
2932 | while (true) {
2933 | if ($this->literal("...")) {
2934 | $isVararg = true;
2935 | break;
2936 | }
2937 |
2938 | if ($this->$method($value)) {
2939 | if ($value[0] == "variable") {
2940 | $arg = array("arg", $value[1]);
2941 | $ss = $this->seek();
2942 |
2943 | if ($this->assign() && $this->$method($rhs)) {
2944 | $arg[] = $rhs;
2945 | } else {
2946 | $this->seek($ss);
2947 | if ($this->literal("...")) {
2948 | $arg[0] = "rest";
2949 | $isVararg = true;
2950 | }
2951 | }
2952 |
2953 | $values[] = $arg;
2954 | if ($isVararg) break;
2955 | continue;
2956 | } else {
2957 | $values[] = array("lit", $value);
2958 | }
2959 | }
2960 |
2961 |
2962 | if (!$this->literal($delim)) {
2963 | if ($delim == "," && $this->literal(";")) {
2964 | // found new delim, convert existing args
2965 | $delim = ";";
2966 | $method = "propertyValue";
2967 |
2968 | // transform arg list
2969 | if (isset($values[1])) { // 2 items
2970 | $newList = array();
2971 | foreach ($values as $i => $arg) {
2972 | switch($arg[0]) {
2973 | case "arg":
2974 | if ($i) {
2975 | $this->throwError("Cannot mix ; and , as delimiter types");
2976 | }
2977 | $newList[] = $arg[2];
2978 | break;
2979 | case "lit":
2980 | $newList[] = $arg[1];
2981 | break;
2982 | case "rest":
2983 | $this->throwError("Unexpected rest before semicolon");
2984 | }
2985 | }
2986 |
2987 | $newList = array("list", ", ", $newList);
2988 |
2989 | switch ($values[0][0]) {
2990 | case "arg":
2991 | $newArg = array("arg", $values[0][1], $newList);
2992 | break;
2993 | case "lit":
2994 | $newArg = array("lit", $newList);
2995 | break;
2996 | }
2997 |
2998 | } elseif ($values) { // 1 item
2999 | $newArg = $values[0];
3000 | }
3001 |
3002 | if ($newArg) {
3003 | $values = array($newArg);
3004 | }
3005 | } else {
3006 | break;
3007 | }
3008 | }
3009 | }
3010 |
3011 | if (!$this->literal(')')) {
3012 | $this->seek($s);
3013 | return false;
3014 | }
3015 |
3016 | $args = $values;
3017 |
3018 | return true;
3019 | }
3020 |
3021 | // consume a list of tags
3022 | // this accepts a hanging delimiter
3023 | protected function tags(&$tags, $simple = false, $delim = ',') {
3024 | $tags = array();
3025 | while ($this->tag($tt, $simple)) {
3026 | $tags[] = $tt;
3027 | if (!$this->literal($delim)) break;
3028 | }
3029 | if (count($tags) == 0) return false;
3030 |
3031 | return true;
3032 | }
3033 |
3034 | // list of tags of specifying mixin path
3035 | // optionally separated by > (lazy, accepts extra >)
3036 | protected function mixinTags(&$tags) {
3037 | $s = $this->seek();
3038 | $tags = array();
3039 | while ($this->tag($tt, true)) {
3040 | $tags[] = $tt;
3041 | $this->literal(">");
3042 | }
3043 |
3044 | if (count($tags) == 0) return false;
3045 |
3046 | return true;
3047 | }
3048 |
3049 | // a bracketed value (contained within in a tag definition)
3050 | protected function tagBracket(&$parts, &$hasExpression) {
3051 | // speed shortcut
3052 | if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] != "[") {
3053 | return false;
3054 | }
3055 |
3056 | $s = $this->seek();
3057 |
3058 | $hasInterpolation = false;
3059 |
3060 | if ($this->literal("[", false)) {
3061 | $attrParts = array("[");
3062 | // keyword, string, operator
3063 | while (true) {
3064 | if ($this->literal("]", false)) {
3065 | $this->count--;
3066 | break; // get out early
3067 | }
3068 |
3069 | if ($this->match('\s+', $m)) {
3070 | $attrParts[] = " ";
3071 | continue;
3072 | }
3073 | if ($this->string($str)) {
3074 | // escape parent selector, (yuck)
3075 | foreach ($str[2] as &$chunk) {
3076 | $chunk = str_replace($this->lessc->parentSelector, "$&$", $chunk);
3077 | }
3078 |
3079 | $attrParts[] = $str;
3080 | $hasInterpolation = true;
3081 | continue;
3082 | }
3083 |
3084 | if ($this->keyword($word)) {
3085 | $attrParts[] = $word;
3086 | continue;
3087 | }
3088 |
3089 | if ($this->interpolation($inter, false)) {
3090 | $attrParts[] = $inter;
3091 | $hasInterpolation = true;
3092 | continue;
3093 | }
3094 |
3095 | // operator, handles attr namespace too
3096 | if ($this->match('[|-~\$\*\^=]+', $m)) {
3097 | $attrParts[] = $m[0];
3098 | continue;
3099 | }
3100 |
3101 | break;
3102 | }
3103 |
3104 | if ($this->literal("]", false)) {
3105 | $attrParts[] = "]";
3106 | foreach ($attrParts as $part) {
3107 | $parts[] = $part;
3108 | }
3109 | $hasExpression = $hasExpression || $hasInterpolation;
3110 | return true;
3111 | }
3112 | $this->seek($s);
3113 | }
3114 |
3115 | $this->seek($s);
3116 | return false;
3117 | }
3118 |
3119 | // a space separated list of selectors
3120 | protected function tag(&$tag, $simple = false) {
3121 | if ($simple)
3122 | $chars = '^@,:;{}\][>\(\) "\'';
3123 | else
3124 | $chars = '^@,;{}["\'';
3125 |
3126 | $s = $this->seek();
3127 |
3128 | $hasExpression = false;
3129 | $parts = array();
3130 | while ($this->tagBracket($parts, $hasExpression));
3131 |
3132 | $oldWhite = $this->eatWhiteDefault;
3133 | $this->eatWhiteDefault = false;
3134 |
3135 | while (true) {
3136 | if ($this->match('(['.$chars.'0-9]['.$chars.']*)', $m)) {
3137 | $parts[] = $m[1];
3138 | if ($simple) break;
3139 |
3140 | while ($this->tagBracket($parts, $hasExpression));
3141 | continue;
3142 | }
3143 |
3144 | if (isset($this->buffer[$this->count]) && $this->buffer[$this->count] == "@") {
3145 | if ($this->interpolation($interp)) {
3146 | $hasExpression = true;
3147 | $interp[2] = true; // don't unescape
3148 | $parts[] = $interp;
3149 | continue;
3150 | }
3151 |
3152 | if ($this->literal("@")) {
3153 | $parts[] = "@";
3154 | continue;
3155 | }
3156 | }
3157 |
3158 | if ($this->unit($unit)) { // for keyframes
3159 | $parts[] = $unit[1];
3160 | $parts[] = $unit[2];
3161 | continue;
3162 | }
3163 |
3164 | break;
3165 | }
3166 |
3167 | $this->eatWhiteDefault = $oldWhite;
3168 | if (!$parts) {
3169 | $this->seek($s);
3170 | return false;
3171 | }
3172 |
3173 | if ($hasExpression) {
3174 | $tag = array("exp", array("string", "", $parts));
3175 | } else {
3176 | $tag = trim(implode($parts));
3177 | }
3178 |
3179 | $this->whitespace();
3180 | return true;
3181 | }
3182 |
3183 | // a css function
3184 | protected function func(&$func) {
3185 | $s = $this->seek();
3186 |
3187 | if ($this->match('(%|[\w\-_][\w\-_:\.]+|[\w_])', $m) && $this->literal('(')) {
3188 | $fname = $m[1];
3189 |
3190 | $sPreArgs = $this->seek();
3191 |
3192 | $args = array();
3193 | while (true) {
3194 | $ss = $this->seek();
3195 | // this ugly nonsense is for ie filter properties
3196 | if ($this->keyword($name) && $this->literal('=') && $this->expressionList($value)) {
3197 | $args[] = array("string", "", array($name, "=", $value));
3198 | } else {
3199 | $this->seek($ss);
3200 | if ($this->expressionList($value)) {
3201 | $args[] = $value;
3202 | }
3203 | }
3204 |
3205 | if (!$this->literal(',')) break;
3206 | }
3207 | $args = array('list', ',', $args);
3208 |
3209 | if ($this->literal(')')) {
3210 | $func = array('function', $fname, $args);
3211 | return true;
3212 | } elseif ($fname == 'url') {
3213 | // couldn't parse and in url? treat as string
3214 | $this->seek($sPreArgs);
3215 | if ($this->openString(")", $string) && $this->literal(")")) {
3216 | $func = array('function', $fname, $string);
3217 | return true;
3218 | }
3219 | }
3220 | }
3221 |
3222 | $this->seek($s);
3223 | return false;
3224 | }
3225 |
3226 | // consume a less variable
3227 | protected function variable(&$name) {
3228 | $s = $this->seek();
3229 | if ($this->literal($this->lessc->vPrefix, false) &&
3230 | ($this->variable($sub) || $this->keyword($name)))
3231 | {
3232 | if (!empty($sub)) {
3233 | $name = array('variable', $sub);
3234 | } else {
3235 | $name = $this->lessc->vPrefix.$name;
3236 | }
3237 | return true;
3238 | }
3239 |
3240 | $name = null;
3241 | $this->seek($s);
3242 | return false;
3243 | }
3244 |
3245 | /**
3246 | * Consume an assignment operator
3247 | * Can optionally take a name that will be set to the current property name
3248 | */
3249 | protected function assign($name = null) {
3250 | if ($name) $this->currentProperty = $name;
3251 | return $this->literal(':') || $this->literal('=');
3252 | }
3253 |
3254 | // consume a keyword
3255 | protected function keyword(&$word) {
3256 | if ($this->match('([\w_\-\*!"][\w\-_"]*)', $m)) {
3257 | $word = $m[1];
3258 | return true;
3259 | }
3260 | return false;
3261 | }
3262 |
3263 | // consume an end of statement delimiter
3264 | protected function end() {
3265 | if ($this->literal(';')) {
3266 | return true;
3267 | } elseif ($this->count == strlen($this->buffer) || $this->buffer[$this->count] == '}') {
3268 | // if there is end of file or a closing block next then we don't need a ;
3269 | return true;
3270 | }
3271 | return false;
3272 | }
3273 |
3274 | protected function guards(&$guards) {
3275 | $s = $this->seek();
3276 |
3277 | if (!$this->literal("when")) {
3278 | $this->seek($s);
3279 | return false;
3280 | }
3281 |
3282 | $guards = array();
3283 |
3284 | while ($this->guardGroup($g)) {
3285 | $guards[] = $g;
3286 | if (!$this->literal(",")) break;
3287 | }
3288 |
3289 | if (count($guards) == 0) {
3290 | $guards = null;
3291 | $this->seek($s);
3292 | return false;
3293 | }
3294 |
3295 | return true;
3296 | }
3297 |
3298 | // a bunch of guards that are and'd together
3299 | // TODO rename to guardGroup
3300 | protected function guardGroup(&$guardGroup) {
3301 | $s = $this->seek();
3302 | $guardGroup = array();
3303 | while ($this->guard($guard)) {
3304 | $guardGroup[] = $guard;
3305 | if (!$this->literal("and")) break;
3306 | }
3307 |
3308 | if (count($guardGroup) == 0) {
3309 | $guardGroup = null;
3310 | $this->seek($s);
3311 | return false;
3312 | }
3313 |
3314 | return true;
3315 | }
3316 |
3317 | protected function guard(&$guard) {
3318 | $s = $this->seek();
3319 | $negate = $this->literal("not");
3320 |
3321 | if ($this->literal("(") && $this->expression($exp) && $this->literal(")")) {
3322 | $guard = $exp;
3323 | if ($negate) $guard = array("negate", $guard);
3324 | return true;
3325 | }
3326 |
3327 | $this->seek($s);
3328 | return false;
3329 | }
3330 |
3331 | /* raw parsing functions */
3332 |
3333 | protected function literal($what, $eatWhitespace = null) {
3334 | if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault;
3335 |
3336 | // shortcut on single letter
3337 | if (!isset($what[1]) && isset($this->buffer[$this->count])) {
3338 | if ($this->buffer[$this->count] == $what) {
3339 | if (!$eatWhitespace) {
3340 | $this->count++;
3341 | return true;
3342 | }
3343 | // goes below...
3344 | } else {
3345 | return false;
3346 | }
3347 | }
3348 |
3349 | if (!isset(self::$literalCache[$what])) {
3350 | self::$literalCache[$what] = lessc::preg_quote($what);
3351 | }
3352 |
3353 | return $this->match(self::$literalCache[$what], $m, $eatWhitespace);
3354 | }
3355 |
3356 | protected function genericList(&$out, $parseItem, $delim="", $flatten=true) {
3357 | $s = $this->seek();
3358 | $items = array();
3359 | while ($this->$parseItem($value)) {
3360 | $items[] = $value;
3361 | if ($delim) {
3362 | if (!$this->literal($delim)) break;
3363 | }
3364 | }
3365 |
3366 | if (count($items) == 0) {
3367 | $this->seek($s);
3368 | return false;
3369 | }
3370 |
3371 | if ($flatten && count($items) == 1) {
3372 | $out = $items[0];
3373 | } else {
3374 | $out = array("list", $delim, $items);
3375 | }
3376 |
3377 | return true;
3378 | }
3379 |
3380 |
3381 | // advance counter to next occurrence of $what
3382 | // $until - don't include $what in advance
3383 | // $allowNewline, if string, will be used as valid char set
3384 | protected function to($what, &$out, $until = false, $allowNewline = false) {
3385 | if (is_string($allowNewline)) {
3386 | $validChars = $allowNewline;
3387 | } else {
3388 | $validChars = $allowNewline ? "." : "[^\n]";
3389 | }
3390 | if (!$this->match('('.$validChars.'*?)'.lessc::preg_quote($what), $m, !$until)) return false;
3391 | if ($until) $this->count -= strlen($what); // give back $what
3392 | $out = $m[1];
3393 | return true;
3394 | }
3395 |
3396 | // try to match something on head of buffer
3397 | protected function match($regex, &$out, $eatWhitespace = null) {
3398 | if ($eatWhitespace === null) $eatWhitespace = $this->eatWhiteDefault;
3399 |
3400 | $r = '/'.$regex.($eatWhitespace && !$this->writeComments ? '\s*' : '').'/Ais';
3401 | if (preg_match($r, $this->buffer, $out, null, $this->count)) {
3402 | $this->count += strlen($out[0]);
3403 | if ($eatWhitespace && $this->writeComments) $this->whitespace();
3404 | return true;
3405 | }
3406 | return false;
3407 | }
3408 |
3409 | // match some whitespace
3410 | protected function whitespace() {
3411 | if ($this->writeComments) {
3412 | $gotWhite = false;
3413 | while (preg_match(self::$whitePattern, $this->buffer, $m, null, $this->count)) {
3414 | if (isset($m[1]) && empty($this->commentsSeen[$this->count])) {
3415 | $this->append(array("comment", $m[1]));
3416 | $this->commentsSeen[$this->count] = true;
3417 | }
3418 | $this->count += strlen($m[0]);
3419 | $gotWhite = true;
3420 | }
3421 | return $gotWhite;
3422 | } else {
3423 | $this->match("", $m);
3424 | return strlen($m[0]) > 0;
3425 | }
3426 | }
3427 |
3428 | // match something without consuming it
3429 | protected function peek($regex, &$out = null, $from=null) {
3430 | if (is_null($from)) $from = $this->count;
3431 | $r = '/'.$regex.'/Ais';
3432 | $result = preg_match($r, $this->buffer, $out, null, $from);
3433 |
3434 | return $result;
3435 | }
3436 |
3437 | // seek to a spot in the buffer or return where we are on no argument
3438 | protected function seek($where = null) {
3439 | if ($where === null) return $this->count;
3440 | else $this->count = $where;
3441 | return true;
3442 | }
3443 |
3444 | /* misc functions */
3445 |
3446 | public function throwError($msg = "parse error", $count = null) {
3447 | $count = is_null($count) ? $this->count : $count;
3448 |
3449 | $line = $this->line +
3450 | substr_count(substr($this->buffer, 0, $count), "\n");
3451 |
3452 | if (!empty($this->sourceName)) {
3453 | $loc = "$this->sourceName on line $line";
3454 | } else {
3455 | $loc = "line: $line";
3456 | }
3457 |
3458 | // TODO this depends on $this->count
3459 | if ($this->peek("(.*?)(\n|$)", $m, $count)) {
3460 | throw new exception("$msg: failed at `$m[1]` $loc");
3461 | } else {
3462 | throw new exception("$msg: $loc");
3463 | }
3464 | }
3465 |
3466 | protected function pushBlock($selectors=null, $type=null) {
3467 | $b = new stdclass;
3468 | $b->parent = $this->env;
3469 |
3470 | $b->type = $type;
3471 | $b->id = self::$nextBlockId++;
3472 |
3473 | $b->isVararg = false; // TODO: kill me from here
3474 | $b->tags = $selectors;
3475 |
3476 | $b->props = array();
3477 | $b->children = array();
3478 |
3479 | $this->env = $b;
3480 | return $b;
3481 | }
3482 |
3483 | // push a block that doesn't multiply tags
3484 | protected function pushSpecialBlock($type) {
3485 | return $this->pushBlock(null, $type);
3486 | }
3487 |
3488 | // append a property to the current block
3489 | protected function append($prop, $pos = null) {
3490 | if ($pos !== null) $prop[-1] = $pos;
3491 | $this->env->props[] = $prop;
3492 | }
3493 |
3494 | // pop something off the stack
3495 | protected function pop() {
3496 | $old = $this->env;
3497 | $this->env = $this->env->parent;
3498 | return $old;
3499 | }
3500 |
3501 | // remove comments from $text
3502 | // todo: make it work for all functions, not just url
3503 | protected function removeComments($text) {
3504 | $look = array(
3505 | 'url(', '//', '/*', '"', "'"
3506 | );
3507 |
3508 | $out = '';
3509 | $min = null;
3510 | while (true) {
3511 | // find the next item
3512 | foreach ($look as $token) {
3513 | $pos = strpos($text, $token);
3514 | if ($pos !== false) {
3515 | if (!isset($min) || $pos < $min[1]) $min = array($token, $pos);
3516 | }
3517 | }
3518 |
3519 | if (is_null($min)) break;
3520 |
3521 | $count = $min[1];
3522 | $skip = 0;
3523 | $newlines = 0;
3524 | switch ($min[0]) {
3525 | case 'url(':
3526 | if (preg_match('/url\(.*?\)/', $text, $m, 0, $count))
3527 | $count += strlen($m[0]) - strlen($min[0]);
3528 | break;
3529 | case '"':
3530 | case "'":
3531 | if (preg_match('/'.$min[0].'.*?(?indentLevel = 0;
3579 | }
3580 |
3581 | public function indentStr($n = 0) {
3582 | return str_repeat($this->indentChar, max($this->indentLevel + $n, 0));
3583 | }
3584 |
3585 | public function property($name, $value) {
3586 | return $name . $this->assignSeparator . $value . ";";
3587 | }
3588 |
3589 | protected function isEmpty($block) {
3590 | if (empty($block->lines)) {
3591 | foreach ($block->children as $child) {
3592 | if (!$this->isEmpty($child)) return false;
3593 | }
3594 |
3595 | return true;
3596 | }
3597 | return false;
3598 | }
3599 |
3600 | public function block($block) {
3601 | if ($this->isEmpty($block)) return;
3602 |
3603 | $inner = $pre = $this->indentStr();
3604 |
3605 | $isSingle = !$this->disableSingle &&
3606 | is_null($block->type) && count($block->lines) == 1;
3607 |
3608 | if (!empty($block->selectors)) {
3609 | $this->indentLevel++;
3610 |
3611 | if ($this->breakSelectors) {
3612 | $selectorSeparator = $this->selectorSeparator . $this->break . $pre;
3613 | } else {
3614 | $selectorSeparator = $this->selectorSeparator;
3615 | }
3616 |
3617 | echo $pre .
3618 | implode($selectorSeparator, $block->selectors);
3619 | if ($isSingle) {
3620 | echo $this->openSingle;
3621 | $inner = "";
3622 | } else {
3623 | echo $this->open . $this->break;
3624 | $inner = $this->indentStr();
3625 | }
3626 |
3627 | }
3628 |
3629 | if (!empty($block->lines)) {
3630 | $glue = $this->break.$inner;
3631 | echo $inner . implode($glue, $block->lines);
3632 | if (!$isSingle && !empty($block->children)) {
3633 | echo $this->break;
3634 | }
3635 | }
3636 |
3637 | foreach ($block->children as $child) {
3638 | $this->block($child);
3639 | }
3640 |
3641 | if (!empty($block->selectors)) {
3642 | if (!$isSingle && empty($block->children)) echo $this->break;
3643 |
3644 | if ($isSingle) {
3645 | echo $this->closeSingle . $this->break;
3646 | } else {
3647 | echo $pre . $this->close . $this->break;
3648 | }
3649 |
3650 | $this->indentLevel--;
3651 | }
3652 | }
3653 | }
3654 |
3655 | class lessc_formatter_compressed extends lessc_formatter_classic {
3656 | public $disableSingle = true;
3657 | public $open = "{";
3658 | public $selectorSeparator = ",";
3659 | public $assignSeparator = ":";
3660 | public $break = "";
3661 | public $compressColors = true;
3662 |
3663 | public function indentStr($n = 0) {
3664 | return "";
3665 | }
3666 | }
3667 |
3668 | class lessc_formatter_lessjs extends lessc_formatter_classic {
3669 | public $disableSingle = true;
3670 | public $breakSelectors = true;
3671 | public $assignSeparator = ": ";
3672 | public $selectorSeparator = ",";
3673 | }
3674 |
3675 |
3676 |
--------------------------------------------------------------------------------
/assets/snippets/cssjs/snippet.css.php:
--------------------------------------------------------------------------------
1 |
9 | $filename = isset($filename) ? $filename : 'styles'; // Filename
10 | $filepre = isset($filepre) ? $filepre : ''; // Load file, e.g., (media="print" onload="this.media='all'")
11 | $link_rel = isset($link_rel) ? $link_rel : 'stylesheet'; // Link attribute
12 |
13 | // Process files, convert less and scss
14 | $filesArr = explode(',', str_replace('\n', '', $files));
15 | foreach ($filesArr as $key => $value) {
16 | $file = MODX_BASE_PATH . trim($value);
17 | $fileinfo = pathinfo($file);
18 | $v[$key] = filemtime($file);
19 | switch ($fileinfo['extension']) {
20 | case 'css':
21 | $filesForMin[$key] = $file;
22 | break;
23 | /*case 'less':
24 | require_once(MODX_BASE_PATH. "assets/snippets/cssjs/less.inc.php");
25 | $less = new lessc;
26 | $less->checkedCompile($file, $folder.$fileinfo['filename'].'.css');
27 | $filesForMin[$key] = $folder.$fileinfo['filename'].'.css';
28 | break;*/
29 | }
30 | }
31 |
32 | // The $filename variable is passed in parameters, so use it to create the styles file name.
33 | if ($minify == '1') {
34 | include_once(MODX_BASE_PATH. "assets/snippets/cssjs/class.magic-min.php");
35 | $minified = new Minifier();
36 | $min = $minified->merge(MODX_BASE_PATH.$folder.$filename.'.min.css', 'css', $filesForMin);
37 | if ($inhtml) {
38 | return '';
39 | } else {
40 | return '';
41 | }
42 | } else {
43 | $links = '';
44 | foreach ($filesArr as $key => $value) {
45 | if ($inhtml) {
46 | $links .= '';
47 | } else {
48 | $links .= '';
49 | }
50 | }
51 | return $links;
52 | }
53 | ?>
54 |
--------------------------------------------------------------------------------
/assets/snippets/cssjs/snippet.js.php:
--------------------------------------------------------------------------------
1 | $value) {
14 | $file = MODX_BASE_PATH . trim($value);
15 | $v[$key] = filemtime($file);
16 | $filesForMin[$key] = $file;
17 | }
18 |
19 | if ($minify == '1') {
20 | include_once(MODX_BASE_PATH. "assets/snippets/cssjs/class.magic-min.php");
21 | $minified = new Minifier();
22 | $min = $minified->merge(MODX_BASE_PATH.$folder.$filename.'.min.js', 'js', $filesForMin);
23 | return '';
24 | } else {
25 | $links = '';
26 | foreach ($filesArr as $key => $value) {
27 | $links .= '';
28 | }
29 | return $links;
30 | }
31 | ?>
32 |
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/install/assets/snippets/css.tpl:
--------------------------------------------------------------------------------
1 | //