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<?php |
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/* @description Transformation Style Sheets - Revolutionising PHP templating * |
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* @author Tom Butler [email protected] * |
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* @copyright 2015 Tom Butler <[email protected]> | https://r.je/ * |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License * |
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* @version 1.0 */ |
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namespace Transphporm\Parser; |
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class Tokens implements \Iterator, \Countable { |
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private $tokens; |
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private $iterator = 0; |
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public function __construct(array $tokens) { |
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$this->tokens = $tokens; |
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} |
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public function count() { |
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return count($this->tokens); |
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} |
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// Iterator Functions |
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public function current() { |
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return $this->tokens[$this->iterator]; |
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} |
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public function key() { |
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return $this->iterator; |
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} |
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public function next() { |
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++$this->iterator; |
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} |
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public function valid() { |
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return isset($this->tokens[$this->iterator]); |
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} |
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public function rewind() { |
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$this->iterator = 0; |
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} |
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private function getKeysOfTokenType($tokenType) { |
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return array_keys(array_column($this->tokens, 'type'), $tokenType); |
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} |
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View Code Duplication |
public function from($tokenType, $inclusive = false) { |
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$keys = $this->getKeysOfTokenType($tokenType); |
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if (count($keys) === 0) return new Tokens([]); |
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$key = $keys[0]; |
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for ($i = 0; $key < $this->iterator; $i++) $key = $keys[$i]; |
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if (!$inclusive) $key++; |
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return new Tokens(array_slice($this->tokens, $key)); |
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} |
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View Code Duplication |
public function to($tokenType, $inclusive = false) { |
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$keys = $this->getKeysOfTokenType($tokenType); |
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if (empty($keys)) return new Tokens([]); |
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$key = $keys[0]; |
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for ($i = 0; $key < $this->iterator; $i++) $key = $keys[$i]; |
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if ($inclusive) $key++; |
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return new Tokens(array_slice($this->tokens, 0, $key)); |
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} |
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public function skip($count) { |
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$this->iterator += $count; |
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} |
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public function splitOnToken($tokenType) { |
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$splitTokens = []; |
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$i = 0; |
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foreach ($this->tokens as $token) { |
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if ($token['type'] === $tokenType) $i++; |
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else $splitTokens[$i][] = $token; |
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} |
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return array_map(function ($tokens) { |
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return new Tokens($tokens); |
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}, $splitTokens); |
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//return $splitTokens; |
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} |
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public function trim() { |
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$tokens = $this->tokens; |
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// Remove end whitespace |
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while (end($tokens)['type'] === Tokenizer::WHITESPACE) { |
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array_pop($tokens); |
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} |
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// Remove begining whitespace |
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while (isset($tokens[0]) && $tokens[0]['type'] === Tokenizer::WHITESPACE) { |
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array_shift($tokens); |
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} |
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return new Tokens($tokens); |
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} |
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public function read($offset = 0) { |
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return isset($this->tokens[$offset]) ? $this->tokens[$offset]['value'] : false; |
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} |
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public function type($offset = 0) { |
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return isset($this->tokens[$offset]) ? $this->tokens[$offset]['type'] : false; |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.