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  1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (http://nette.org)
  5:  *
  6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
  7:  *
  8:  * For the full copyright and license information, please view
  9:  * the file license.txt that was distributed with this source code.
 10:  * @package Nette\Application\Routers
 11:  */
 12: 
 13: 
 14: 
 15: /**
 16:  * The bidirectional route is responsible for mapping
 17:  * HTTP request to a Request object for dispatch and vice-versa.
 18:  *
 19:  * @author     David Grudl
 20:  *
 21:  * @property-read string $mask
 22:  * @property-read array $defaults
 23:  * @property-read int $flags
 24:  * @property-read string|FALSE $targetPresenter
 25:  * @package Nette\Application\Routers
 26:  */
 27: class NRoute extends NObject implements IRouter
 28: {
 29:     const PRESENTER_KEY = 'presenter';
 30:     const MODULE_KEY = 'module';
 31: 
 32:     /** flag */
 33:     const CASE_SENSITIVE = 256;
 34: 
 35:     /** @internal url type */
 36:     const HOST = 1,
 37:         PATH = 2,
 38:         RELATIVE = 3;
 39: 
 40:     /** key used in {@link NRoute::$styles} or metadata {@link NRoute::__construct} */
 41:     const VALUE = 'value';
 42:     const PATTERN = 'pattern';
 43:     const FILTER_IN = 'filterIn';
 44:     const FILTER_OUT = 'filterOut';
 45:     const FILTER_TABLE = 'filterTable';
 46:     const FILTER_STRICT = 'filterStrict';
 47: 
 48:     /** @internal fixity types - how to handle default value? {@link NRoute::$metadata} */
 49:     const OPTIONAL = 0,
 50:         PATH_OPTIONAL = 1,
 51:         CONSTANT = 2;
 52: 
 53:     /** @var int */
 54:     public static $defaultFlags = 0;
 55: 
 56:     /** @var array */
 57:     public static $styles = array(
 58:         '#' => array( // default style for path parameters
 59:             self::PATTERN => '[^/]+',
 60:             self::FILTER_IN => 'rawurldecode',
 61:             self::FILTER_OUT => array(__CLASS__, 'param2path'),
 62:         ),
 63:         '?#' => array( // default style for query parameters
 64:         ),
 65:         'module' => array(
 66:             self::PATTERN => '[a-z][a-z0-9.-]*',
 67:             self::FILTER_IN => array(__CLASS__, 'path2presenter'),
 68:             self::FILTER_OUT => array(__CLASS__, 'presenter2path'),
 69:         ),
 70:         'presenter' => array(
 71:             self::PATTERN => '[a-z][a-z0-9.-]*',
 72:             self::FILTER_IN => array(__CLASS__, 'path2presenter'),
 73:             self::FILTER_OUT => array(__CLASS__, 'presenter2path'),
 74:         ),
 75:         'action' => array(
 76:             self::PATTERN => '[a-z][a-z0-9-]*',
 77:             self::FILTER_IN => array(__CLASS__, 'path2action'),
 78:             self::FILTER_OUT => array(__CLASS__, 'action2path'),
 79:         ),
 80:         '?module' => array(
 81:         ),
 82:         '?presenter' => array(
 83:         ),
 84:         '?action' => array(
 85:         ),
 86:     );
 87: 
 88:     /** @var string */
 89:     private $mask;
 90: 
 91:     /** @var array */
 92:     private $sequence;
 93: 
 94:     /** @var string  regular expression pattern */
 95:     private $re;
 96: 
 97:     /** @var array of [value & fixity, filterIn, filterOut] */
 98:     private $metadata = array();
 99: 
100:     /** @var array  */
101:     private $xlat;
102: 
103:     /** @var int HOST, PATH, RELATIVE */
104:     private $type;
105: 
106:     /** @var int */
107:     private $flags;
108: 
109: 
110: 
111:     /**
112:      * @param  string  URL mask, e.g. '<presenter>/<action>/<id \d{1,3}>'
113:      * @param  array|string   default values or metadata
114:      * @param  int     flags
115:      */
116:     public function __construct($mask, $metadata = array(), $flags = 0)
117:     {
118:         if (is_string($metadata)) {
119:             $a = strrpos($metadata, ':');
120:             if (!$a) {
121:                 throw new InvalidArgumentException("Second argument must be array or string in format Presenter:action, '$metadata' given.");
122:             }
123:             $metadata = array(
124:                 self::PRESENTER_KEY => substr($metadata, 0, $a),
125:                 'action' => $a === strlen($metadata) - 1 ? NULL : substr($metadata, $a + 1),
126:             );
127:         } elseif ($metadata instanceof Closure || $metadata instanceof NCallback) {
128:             $metadata = array(
129:                 self::PRESENTER_KEY => 'Nette:Micro',
130:                 'callback' => $metadata,
131:             );
132:         }
133: 
134:         $this->flags = $flags | self::$defaultFlags;
135:         $this->setMask($mask, $metadata);
136:     }
137: 
138: 
139: 
140:     /**
141:      * Maps HTTP request to a Request object.
142:      * @return NPresenterRequest|NULL
143:      */
144:     public function match(IHttpRequest $httpRequest)
145:     {
146:         // combine with precedence: mask (params in URL-path), fixity, query, (post,) defaults
147: 
148:         // 1) URL MASK
149:         $url = $httpRequest->getUrl();
150: 
151:         if ($this->type === self::HOST) {
152:             $path = '//' . $url->getHost() . $url->getPath();
153: 
154:         } elseif ($this->type === self::RELATIVE) {
155:             $basePath = $url->getBasePath();
156:             if (strncmp($url->getPath(), $basePath, strlen($basePath)) !== 0) {
157:                 return NULL;
158:             }
159:             $path = (string) substr($url->getPath(), strlen($basePath));
160: 
161:         } else {
162:             $path = $url->getPath();
163:         }
164: 
165:         if ($path !== '') {
166:             $path = rtrim($path, '/') . '/';
167:         }
168: 
169:         if (!$matches = NStrings::match($path, $this->re)) {
170:             // stop, not matched
171:             return NULL;
172:         }
173: 
174:         // deletes numeric keys, restore '-' chars
175:         $params = array();
176:         foreach ($matches as $k => $v) {
177:             if (is_string($k) && $v !== '') {
178:                 $params[str_replace('___', '-', $k)] = $v; // trick
179:             }
180:         }
181: 
182: 
183:         // 2) CONSTANT FIXITY
184:         foreach ($this->metadata as $name => $meta) {
185:             if (isset($params[$name])) {
186:                 //$params[$name] = $this->flags & self::CASE_SENSITIVE === 0 ? strtolower($params[$name]) : */$params[$name]; // strtolower damages UTF-8
187: 
188:             } elseif (isset($meta['fixity']) && $meta['fixity'] !== self::OPTIONAL) {
189:                 $params[$name] = NULL; // cannot be overwriten in 3) and detected by isset() in 4)
190:             }
191:         }
192: 
193: 
194:         // 3) QUERY
195:         if ($this->xlat) {
196:             $params += self::renameKeys($httpRequest->getQuery(), array_flip($this->xlat));
197:         } else {
198:             $params += $httpRequest->getQuery();
199:         }
200: 
201: 
202:         // 4) APPLY FILTERS & FIXITY
203:         foreach ($this->metadata as $name => $meta) {
204:             if (isset($params[$name])) {
205:                 if (!is_scalar($params[$name])) {
206: 
207:                 } elseif (isset($meta[self::FILTER_TABLE][$params[$name]])) { // applies filterTable only to scalar parameters
208:                     $params[$name] = $meta[self::FILTER_TABLE][$params[$name]];
209: 
210:                 } elseif (isset($meta[self::FILTER_TABLE]) && !empty($meta[self::FILTER_STRICT])) {
211:                     return NULL; // rejected by filterTable
212: 
213:                 } elseif (isset($meta[self::FILTER_IN])) { // applies filterIn only to scalar parameters
214:                     $params[$name] = call_user_func($meta[self::FILTER_IN], (string) $params[$name]);
215:                     if ($params[$name] === NULL && !isset($meta['fixity'])) {
216:                         return NULL; // rejected by filter
217:                     }
218:                 }
219: 
220:             } elseif (isset($meta['fixity'])) {
221:                 $params[$name] = $meta[self::VALUE];
222:             }
223:         }
224: 
225: 
226:         // 5) BUILD Request
227:         if (!isset($params[self::PRESENTER_KEY])) {
228:             throw new InvalidStateException('Missing presenter in route definition.');
229:         }
230:         if (isset($this->metadata[self::MODULE_KEY])) {
231:             if (!isset($params[self::MODULE_KEY])) {
232:                 throw new InvalidStateException('Missing module in route definition.');
233:             }
234:             $presenter = $params[self::MODULE_KEY] . ':' . $params[self::PRESENTER_KEY];
235:             unset($params[self::MODULE_KEY], $params[self::PRESENTER_KEY]);
236: 
237:         } else {
238:             $presenter = $params[self::PRESENTER_KEY];
239:             unset($params[self::PRESENTER_KEY]);
240:         }
241: 
242:         return new NPresenterRequest(
243:             $presenter,
244:             $httpRequest->getMethod(),
245:             $params,
246:             $httpRequest->getPost(),
247:             $httpRequest->getFiles(),
248:             array(NPresenterRequest::SECURED => $httpRequest->isSecured())
249:         );
250:     }
251: 
252: 
253: 
254:     /**
255:      * Constructs absolute URL from Request object.
256:      * @return string|NULL
257:      */
258:     public function constructUrl(NPresenterRequest $appRequest, NUrl $refUrl)
259:     {
260:         if ($this->flags & self::ONE_WAY) {
261:             return NULL;
262:         }
263: 
264:         $params = $appRequest->getParameters();
265:         $metadata = $this->metadata;
266: 
267:         $presenter = $appRequest->getPresenterName();
268:         $params[self::PRESENTER_KEY] = $presenter;
269: 
270:         if (isset($metadata[self::MODULE_KEY])) { // try split into module and [submodule:]presenter parts
271:             $module = $metadata[self::MODULE_KEY];
272:             if (isset($module['fixity']) && strncasecmp($presenter, $module[self::VALUE] . ':', strlen($module[self::VALUE]) + 1) === 0) {
273:                 $a = strlen($module[self::VALUE]);
274:             } else {
275:                 $a = strrpos($presenter, ':');
276:             }
277:             if ($a === FALSE) {
278:                 $params[self::MODULE_KEY] = '';
279:             } else {
280:                 $params[self::MODULE_KEY] = substr($presenter, 0, $a);
281:                 $params[self::PRESENTER_KEY] = substr($presenter, $a + 1);
282:             }
283:         }
284: 
285:         foreach ($metadata as $name => $meta) {
286:             if (!isset($params[$name])) {
287:                 continue; // retains NULL values
288:             }
289: 
290:             if (isset($meta['fixity'])) {
291:                 if ($params[$name] === FALSE) {
292:                     $params[$name] = '0';
293:                 }
294:                 if (is_scalar($params[$name]) ? strcasecmp($params[$name], $meta[self::VALUE]) === 0
295:                     : $params[$name] === $meta[self::VALUE]
296:                 ) { // remove default values; NULL values are retain
297:                     unset($params[$name]);
298:                     continue;
299: 
300:                 } elseif ($meta['fixity'] === self::CONSTANT) {
301:                     return NULL; // missing or wrong parameter '$name'
302:                 }
303:             }
304: 
305:             if (!is_scalar($params[$name])) {
306: 
307:             } elseif (isset($meta['filterTable2'][$params[$name]])) {
308:                 $params[$name] = $meta['filterTable2'][$params[$name]];
309: 
310:             } elseif (isset($meta['filterTable2']) && !empty($meta[self::FILTER_STRICT])) {
311:                 return NULL;
312: 
313:             } elseif (isset($meta[self::FILTER_OUT])) {
314:                 $params[$name] = call_user_func($meta[self::FILTER_OUT], $params[$name]);
315:             }
316: 
317:             if (isset($meta[self::PATTERN]) && !preg_match($meta[self::PATTERN], rawurldecode($params[$name]))) {
318:                 return NULL; // pattern not match
319:             }
320:         }
321: 
322:         // compositing path
323:         $sequence = $this->sequence;
324:         $brackets = array();
325:         $required = NULL; // NULL for auto-optional
326:         $url = '';
327:         $i = count($sequence) - 1;
328:         do {
329:             $url = $sequence[$i] . $url;
330:             if ($i === 0) {
331:                 break;
332:             }
333:             $i--;
334: 
335:             $name = $sequence[$i]; $i--; // parameter name
336: 
337:             if ($name === ']') { // opening optional part
338:                 $brackets[] = $url;
339: 
340:             } elseif ($name[0] === '[') { // closing optional part
341:                 $tmp = array_pop($brackets);
342:                 if ($required < count($brackets) + 1) { // is this level optional?
343:                     if ($name !== '[!') { // and not "required"-optional
344:                         $url = $tmp;
345:                     }
346:                 } else {
347:                     $required = count($brackets);
348:                 }
349: 
350:             } elseif ($name[0] === '?') { // "foo" parameter
351:                 continue;
352: 
353:             } elseif (isset($params[$name]) && $params[$name] != '') { // intentionally ==
354:                 $required = count($brackets); // make this level required
355:                 $url = $params[$name] . $url;
356:                 unset($params[$name]);
357: 
358:             } elseif (isset($metadata[$name]['fixity'])) { // has default value?
359:                 if ($required === NULL && !$brackets) { // auto-optional
360:                     $url = '';
361:                 } else {
362:                     $url = $metadata[$name]['defOut'] . $url;
363:                 }
364: 
365:             } else {
366:                 return NULL; // missing parameter '$name'
367:             }
368:         } while (TRUE);
369: 
370: 
371:         // build query string
372:         if ($this->xlat) {
373:             $params = self::renameKeys($params, $this->xlat);
374:         }
375: 
376:         $sep = ini_get('arg_separator.input');
377:         $query = http_build_query($params, '', $sep ? $sep[0] : '&');
378:         if ($query != '') { // intentionally ==
379:             $url .= '?' . $query;
380:         }
381: 
382:         // absolutize path
383:         if ($this->type === self::RELATIVE) {
384:             $url = '//' . $refUrl->getAuthority() . $refUrl->getBasePath() . $url;
385: 
386:         } elseif ($this->type === self::PATH) {
387:             $url = '//' . $refUrl->getAuthority() . $url;
388:         }
389: 
390:         if (strpos($url, '//', 2) !== FALSE) {
391:             return NULL; // TODO: implement counterpart in match() ?
392:         }
393: 
394:         $url = ($this->flags & self::SECURED ? 'https:' : 'http:') . $url;
395: 
396:         return $url;
397:     }
398: 
399: 
400: 
401:     /**
402:      * Parse mask and array of default values; initializes object.
403:      * @param  string
404:      * @param  array
405:      * @return void
406:      */
407:     private function setMask($mask, array $metadata)
408:     {
409:         $this->mask = $mask;
410: 
411:         // detect '//host/path' vs. '/abs. path' vs. 'relative path'
412:         if (substr($mask, 0, 2) === '//') {
413:             $this->type = self::HOST;
414: 
415:         } elseif (substr($mask, 0, 1) === '/') {
416:             $this->type = self::PATH;
417: 
418:         } else {
419:             $this->type = self::RELATIVE;
420:         }
421: 
422:         foreach ($metadata as $name => $meta) {
423:             if (!is_array($meta)) {
424:                 $metadata[$name] = array(self::VALUE => $meta, 'fixity' => self::CONSTANT);
425: 
426:             } elseif (array_key_exists(self::VALUE, $meta)) {
427:                 $metadata[$name]['fixity'] = self::CONSTANT;
428:             }
429:         }
430: 
431:         // PARSE MASK
432:         // <parameter-name[=default] [pattern] [#class]> or [ or ] or ?...
433:         $parts = NStrings::split($mask, '/<([^>#= ]+)(=[^># ]*)? *([^>#]*)(#?[^>\[\]]*)>|(\[!?|\]|\s*\?.*)/');
434: 
435:         $this->xlat = array();
436:         $i = count($parts) - 1;
437: 
438:         // PARSE QUERY PART OF MASK
439:         if (isset($parts[$i - 1]) && substr(ltrim($parts[$i - 1]), 0, 1) === '?') {
440:             // name=<parameter-name [pattern][#class]>
441:             $matches = NStrings::matchAll($parts[$i - 1], '/(?:([a-zA-Z0-9_.-]+)=)?<([^># ]+) *([^>#]*)(#?[^>]*)>/');
442: 
443:             foreach ($matches as $match) {
444:                 list(, $param, $name, $pattern, $class) = $match;  // $pattern is not used
445: 
446:                 if ($class !== '') {
447:                     if (!isset(self::$styles[$class])) {
448:                         throw new InvalidStateException("Parameter '$name' has '$class' flag, but Route::\$styles['$class'] is not set.");
449:                     }
450:                     $meta = self::$styles[$class];
451: 
452:                 } elseif (isset(self::$styles['?' . $name])) {
453:                     $meta = self::$styles['?' . $name];
454: 
455:                 } else {
456:                     $meta = self::$styles['?#'];
457:                 }
458: 
459:                 if (isset($metadata[$name])) {
460:                     $meta = $metadata[$name] + $meta;
461:                 }
462: 
463:                 if (array_key_exists(self::VALUE, $meta)) {
464:                     $meta['fixity'] = self::OPTIONAL;
465:                 }
466: 
467:                 unset($meta['pattern']);
468:                 $meta['filterTable2'] = empty($meta[self::FILTER_TABLE]) ? NULL : array_flip($meta[self::FILTER_TABLE]);
469: 
470:                 $metadata[$name] = $meta;
471:                 if ($param !== '') {
472:                     $this->xlat[$name] = $param;
473:                 }
474:             }
475:             $i -= 6;
476:         }
477: 
478:         // PARSE PATH PART OF MASK
479:         $brackets = 0; // optional level
480:         $re = '';
481:         $sequence = array();
482:         $autoOptional = TRUE;
483:         do {
484:             array_unshift($sequence, $parts[$i]);
485:             $re = preg_quote($parts[$i], '#') . $re;
486:             if ($i === 0) {
487:                 break;
488:             }
489:             $i--;
490: 
491:             $part = $parts[$i]; // [ or ]
492:             if ($part === '[' || $part === ']' || $part === '[!') {
493:                 $brackets += $part[0] === '[' ? -1 : 1;
494:                 if ($brackets < 0) {
495:                     throw new InvalidArgumentException("Unexpected '$part' in mask '$mask'.");
496:                 }
497:                 array_unshift($sequence, $part);
498:                 $re = ($part[0] === '[' ? '(?:' : ')?') . $re;
499:                 $i -= 5;
500:                 continue;
501:             }
502: 
503:             $class = $parts[$i]; $i--; // validation class
504:             $pattern = trim($parts[$i]); $i--; // validation condition (as regexp)
505:             $default = $parts[$i]; $i--; // default value
506:             $name = $parts[$i]; $i--; // parameter name
507:             array_unshift($sequence, $name);
508: 
509:             if ($name[0] === '?') { // "foo" parameter
510:                 $re = '(?:' . preg_quote(substr($name, 1), '#') . '|' . $pattern . ')' . $re;
511:                 $sequence[1] = substr($name, 1) . $sequence[1];
512:                 continue;
513:             }
514: 
515:             // check name (limitation by regexp)
516:             if (preg_match('#[^a-z0-9_-]#i', $name)) {
517:                 throw new InvalidArgumentException("Parameter name must be alphanumeric string due to limitations of PCRE, '$name' given.");
518:             }
519: 
520:             // pattern, condition & metadata
521:             if ($class !== '') {
522:                 if (!isset(self::$styles[$class])) {
523:                     throw new InvalidStateException("Parameter '$name' has '$class' flag, but Route::\$styles['$class'] is not set.");
524:                 }
525:                 $meta = self::$styles[$class];
526: 
527:             } elseif (isset(self::$styles[$name])) {
528:                 $meta = self::$styles[$name];
529: 
530:             } else {
531:                 $meta = self::$styles['#'];
532:             }
533: 
534:             if (isset($metadata[$name])) {
535:                 $meta = $metadata[$name] + $meta;
536:             }
537: 
538:             if ($pattern == '' && isset($meta[self::PATTERN])) {
539:                 $pattern = $meta[self::PATTERN];
540:             }
541: 
542:             if ($default !== '') {
543:                 $meta[self::VALUE] = (string) substr($default, 1);
544:                 $meta['fixity'] = self::PATH_OPTIONAL;
545:             }
546: 
547:             $meta['filterTable2'] = empty($meta[self::FILTER_TABLE]) ? NULL : array_flip($meta[self::FILTER_TABLE]);
548:             if (array_key_exists(self::VALUE, $meta)) {
549:                 if (isset($meta['filterTable2'][$meta[self::VALUE]])) {
550:                     $meta['defOut'] = $meta['filterTable2'][$meta[self::VALUE]];
551: 
552:                 } elseif (isset($meta[self::FILTER_OUT])) {
553:                     $meta['defOut'] = call_user_func($meta[self::FILTER_OUT], $meta[self::VALUE]);
554: 
555:                 } else {
556:                     $meta['defOut'] = $meta[self::VALUE];
557:                 }
558:             }
559:             $meta[self::PATTERN] = "#(?:$pattern)\\z#A" . ($this->flags & self::CASE_SENSITIVE ? '' : 'iu');
560: 
561:             // include in expression
562:             $re = '(?P<' . str_replace('-', '___', $name) . '>(?U)' . $pattern . ')' . $re; // str_replace is dirty trick to enable '-' in parameter name
563:             if ($brackets) { // is in brackets?
564:                 if (!isset($meta[self::VALUE])) {
565:                     $meta[self::VALUE] = $meta['defOut'] = NULL;
566:                 }
567:                 $meta['fixity'] = self::PATH_OPTIONAL;
568: 
569:             } elseif (!$autoOptional) {
570:                 unset($meta['fixity']);
571: 
572:             } elseif (isset($meta['fixity'])) { // auto-optional
573:                 $re = '(?:' . $re . ')?';
574:                 $meta['fixity'] = self::PATH_OPTIONAL;
575: 
576:             } else {
577:                 $autoOptional = FALSE;
578:             }
579: 
580:             $metadata[$name] = $meta;
581:         } while (TRUE);
582: 
583:         if ($brackets) {
584:             throw new InvalidArgumentException("Missing closing ']' in mask '$mask'.");
585:         }
586: 
587:         $this->re = '#' . $re . '/?\z#A' . ($this->flags & self::CASE_SENSITIVE ? '' : 'iu');
588:         $this->metadata = $metadata;
589:         $this->sequence = $sequence;
590:     }
591: 
592: 
593: 
594:     /**
595:      * Returns mask.
596:      * @return string
597:      */
598:     public function getMask()
599:     {
600:         return $this->mask;
601:     }
602: 
603: 
604: 
605:     /**
606:      * Returns default values.
607:      * @return array
608:      */
609:     public function getDefaults()
610:     {
611:         $defaults = array();
612:         foreach ($this->metadata as $name => $meta) {
613:             if (isset($meta['fixity'])) {
614:                 $defaults[$name] = $meta[self::VALUE];
615:             }
616:         }
617:         return $defaults;
618:     }
619: 
620: 
621: 
622:     /**
623:      * Returns flags.
624:      * @return int
625:      */
626:     public function getFlags()
627:     {
628:         return $this->flags;
629:     }
630: 
631: 
632: 
633:     /********************* Utilities ****************d*g**/
634: 
635: 
636: 
637:     /**
638:      * Proprietary cache aim.
639:      * @return string|FALSE
640:      */
641:     public function getTargetPresenter()
642:     {
643:         if ($this->flags & self::ONE_WAY) {
644:             return FALSE;
645:         }
646: 
647:         $m = $this->metadata;
648:         $module = '';
649: 
650:         if (isset($m[self::MODULE_KEY])) {
651:             if (isset($m[self::MODULE_KEY]['fixity']) && $m[self::MODULE_KEY]['fixity'] === self::CONSTANT) {
652:                 $module = $m[self::MODULE_KEY][self::VALUE] . ':';
653:             } else {
654:                 return NULL;
655:             }
656:         }
657: 
658:         if (isset($m[self::PRESENTER_KEY]['fixity']) && $m[self::PRESENTER_KEY]['fixity'] === self::CONSTANT) {
659:             return $module . $m[self::PRESENTER_KEY][self::VALUE];
660:         }
661:         return NULL;
662:     }
663: 
664: 
665: 
666:     /**
667:      * Rename keys in array.
668:      * @param  array
669:      * @param  array
670:      * @return array
671:      */
672:     private static function renameKeys($arr, $xlat)
673:     {
674:         if (empty($xlat)) {
675:             return $arr;
676:         }
677: 
678:         $res = array();
679:         $occupied = array_flip($xlat);
680:         foreach ($arr as $k => $v) {
681:             if (isset($xlat[$k])) {
682:                 $res[$xlat[$k]] = $v;
683: 
684:             } elseif (!isset($occupied[$k])) {
685:                 $res[$k] = $v;
686:             }
687:         }
688:         return $res;
689:     }
690: 
691: 
692: 
693:     /********************* Inflectors ****************d*g**/
694: 
695: 
696: 
697:     /**
698:      * camelCaseAction name -> dash-separated.
699:      * @param  string
700:      * @return string
701:      */
702:     private static function action2path($s)
703:     {
704:         $s = preg_replace('#(.)(?=[A-Z])#', '$1-', $s);
705:         $s = strtolower($s);
706:         $s = rawurlencode($s);
707:         return $s;
708:     }
709: 
710: 
711: 
712:     /**
713:      * dash-separated -> camelCaseAction name.
714:      * @param  string
715:      * @return string
716:      */
717:     private static function path2action($s)
718:     {
719:         $s = strtolower($s);
720:         $s = preg_replace('#-(?=[a-z])#', ' ', $s);
721:         $s = substr(ucwords('x' . $s), 1);
722:         //$s = lcfirst(ucwords($s));
723:         $s = str_replace(' ', '', $s);
724:         return $s;
725:     }
726: 
727: 
728: 
729:     /**
730:      * PascalCase:Presenter name -> dash-and-dot-separated.
731:      * @param  string
732:      * @return string
733:      */
734:     private static function presenter2path($s)
735:     {
736:         $s = strtr($s, ':', '.');
737:         $s = preg_replace('#([^.])(?=[A-Z])#', '$1-', $s);
738:         $s = strtolower($s);
739:         $s = rawurlencode($s);
740:         return $s;
741:     }
742: 
743: 
744: 
745:     /**
746:      * dash-and-dot-separated -> PascalCase:Presenter name.
747:      * @param  string
748:      * @return string
749:      */
750:     private static function path2presenter($s)
751:     {
752:         $s = strtolower($s);
753:         $s = preg_replace('#([.-])(?=[a-z])#', '$1 ', $s);
754:         $s = ucwords($s);
755:         $s = str_replace('. ', ':', $s);
756:         $s = str_replace('- ', '', $s);
757:         return $s;
758:     }
759: 
760: 
761: 
762:     /**
763:      * Url encode.
764:      * @param  string
765:      * @return string
766:      */
767:     private static function param2path($s)
768:     {
769:         return str_replace('%2F', '/', rawurlencode($s));
770:     }
771: 
772: 
773: 
774:     /********************* NRoute::$styles manipulator ****************d*g**/
775: 
776: 
777: 
778:     /**
779:      * Creates new style.
780:      * @param  string  style name (#style, urlParameter, ?queryParameter)
781:      * @param  string  optional parent style name
782:      * @return void
783:      */
784:     public static function addStyle($style, $parent = '#')
785:     {
786:         if (isset(self::$styles[$style])) {
787:             throw new InvalidArgumentException("Style '$style' already exists.");
788:         }
789: 
790:         if ($parent !== NULL) {
791:             if (!isset(self::$styles[$parent])) {
792:                 throw new InvalidArgumentException("Parent style '$parent' doesn't exist.");
793:             }
794:             self::$styles[$style] = self::$styles[$parent];
795: 
796:         } else {
797:             self::$styles[$style] = array();
798:         }
799:     }
800: 
801: 
802: 
803:     /**
804:      * Changes style property value.
805:      * @param  string  style name (#style, urlParameter, ?queryParameter)
806:      * @param  string  property name (NRoute::PATTERN, NRoute::FILTER_IN, NRoute::FILTER_OUT, NRoute::FILTER_TABLE)
807:      * @param  mixed   property value
808:      * @return void
809:      */
810:     public static function setStyleProperty($style, $key, $value)
811:     {
812:         if (!isset(self::$styles[$style])) {
813:             throw new InvalidArgumentException("Style '$style' doesn't exist.");
814:         }
815:         self::$styles[$style][$key] = $value;
816:     }
817: 
818: }
819: 
Nette Framework 2.0.7 (for PHP 5.2, prefixed) API API documentation generated by ApiGen 2.8.0