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<?php |
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/** |
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* Copyright (c) 2008-2011 Andreas Heigl<[email protected]> |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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* |
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* @category Hyphenation |
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* @package Org\Heigl\Hyphenator |
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* @subpackage Tokenizer |
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* @author Andreas Heigl <[email protected]> |
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* @copyright 2008-2011 Andreas Heigl<[email protected]> |
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* @license http://www.opensource.org/licenses/mit-license.php MIT-License |
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* @version 2.0.1 |
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* @link http://github.com/heiglandreas/Hyphenator |
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* @since 04.11.2011 |
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*/ |
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namespace Org\Heigl\Hyphenator\Tokenizer; |
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/** |
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* This class provides a registry for storing Tokens |
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* |
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* @category Hyphenation |
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* @package Org\Heigl\Hyphenator |
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* @subpackage Tokenizer |
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* @author Andreas Heigl <[email protected]> |
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* @copyright 2008-2011 Andreas Heigl<[email protected]> |
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* @license http://www.opensource.org/licenses/mit-license.php MIT-License |
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* @version 2.0.1 |
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* @link http://github.com/heiglandreas/Hyphenator |
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* @since 04.11.2011 |
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*/ |
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class TokenRegistry implements \Iterator, \Countable |
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{ |
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/** |
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* Storage for the Tokens. |
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* |
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* @var \Org\Heigl\Hyphenator\Tokenizer\Token[] $registry |
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*/ |
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private $registry = array(); |
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/** |
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* Add an item to the registry |
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* |
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* @param \Org\Heigl\Hyphenator\Tokenizer\Token $token The token to add |
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* |
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* @return \Org\Heigl\Hyphenator\Tokenizer\TokenRegistry |
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*/ |
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public function add(Token $token) |
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{ |
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$this->registry[] = $token; |
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return $this; |
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} |
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/** |
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* Replace a given token with an array of new tokens |
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* |
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* This will be used when a tokenizer has to replace a token that has been |
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* divided into multiple tokens. |
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* |
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* @param Token $oldToken The token to be replaced |
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* @param Token[] $newTokens The array of tokens replacing the old one |
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* |
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* @return TokenRegistry |
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*/ |
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public function replace(Token $oldToken, array $newTokens) |
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{ |
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// Get the current key of the element. |
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$key = array_search($oldToken, $this->registry, true); |
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if (false === $key) { |
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return $this; |
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} |
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$replacement = array(); |
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// Check for any non-token-elements and remove them. |
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foreach ($newTokens as $token) { |
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if (! $token instanceof Token) { |
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continue; |
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} |
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$replacement[] = $token; |
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} |
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// Replace the old element with the newly created array |
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array_splice($this->registry, $key, 1, $replacement); |
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return $this; |
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} |
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/** |
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* Get a Token entry by its key |
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* |
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* @param mixed $key The key to get the token for |
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* |
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* @return Token|null |
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*/ |
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public function getTokenWithKey($key) |
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{ |
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if (array_key_exists($key, $this->registry)) { |
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return $this->registry[$key]; |
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} |
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return null; |
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} |
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/** |
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* Implementation of \Iterator |
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* |
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* @see \Iterator::rewind() |
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* |
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* @return void |
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*/ |
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public function rewind() |
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{ |
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reset($this->registry); |
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} |
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/** |
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* Get the current object |
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* |
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* @see \Iterator::current() |
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* |
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* @return \Org\Heigl\Hyphenator\Tokenizer\Token |
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*/ |
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public function current() |
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{ |
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return current($this->registry); |
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} |
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/** |
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* Get the current key |
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* |
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* @see \Iterator::key() |
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* |
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* @return mixed |
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*/ |
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public function key() |
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{ |
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return key($this->registry); |
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} |
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/** |
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* Get the number of items in the registry |
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* |
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* @see \Countable::count() |
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* |
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* @return int |
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*/ |
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public function count() |
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{ |
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return count($this->registry); |
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} |
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/** |
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* Push the internal pointer forward one step |
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* |
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* @see \Iterator::next() |
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* |
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* @return void |
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*/ |
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public function next() |
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{ |
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next($this->registry); |
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} |
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/** |
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* Check whether the current pointer is in a valid place |
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* |
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* @see \Iterator::valid() |
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* |
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* @return boolean |
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*/ |
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public function valid() |
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{ |
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if (false === current($this->registry)) { |
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return false; |
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} |
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return true; |
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} |
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} |
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heiglandreas /
Org_Heigl_Hyphenator
