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<?php |
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/** |
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* Platine Template |
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* |
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* Platine Template is a template engine that has taken a lot of inspiration from Django. |
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* |
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* This content is released under the MIT License (MIT) |
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* |
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* Copyright (c) 2020 Platine Template |
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* Copyright (c) 2014 Guz Alexander, http://guzalexander.com |
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* Copyright (c) 2011, 2012 Harald Hanek, http://www.delacap.com |
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* Copyright (c) 2006 Mateo Murphy |
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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 all |
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* 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 THE |
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* SOFTWARE. |
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*/ |
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/** |
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* @file CycleTag.php |
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* |
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* The "cycle" Template tag class |
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* |
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* @package Platine\Template\Tag |
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* @author Platine Developers Team |
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* @copyright Copyright (c) 2020 |
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* @license http://opensource.org/licenses/MIT MIT License |
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* @link https://www.platine-php.com |
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* @version 1.0.0 |
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* @filesource |
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*/ |
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declare(strict_types=1); |
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namespace Platine\Template\Tag; |
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use Platine\Template\Exception\ParseException; |
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use Platine\Template\Parser\AbstractTag; |
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use Platine\Template\Parser\Context; |
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use Platine\Template\Parser\Lexer; |
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use Platine\Template\Parser\Parser; |
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use Platine\Template\Parser\Token; |
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/** |
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* @class CycleTag |
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* @package Platine\Template\Tag |
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*/ |
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class CycleTag extends AbstractTag |
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{ |
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/** |
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* The name of the cycle; if none is given one |
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* is created using the value list |
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* @var string |
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*/ |
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protected string $name; |
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/** |
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* The variables to cycle between |
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* @var array<int, string> |
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*/ |
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protected array $variables = []; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct(string $markup, array &$tokens, Parser $parser) |
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{ |
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$lexerSimple = new Lexer('/' . Token::QUOTED_FRAGMENT . '/'); |
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$lexerNamed = new Lexer('/(' . Token::QUOTED_FRAGMENT . ')\s*\:\s*(.*)/'); |
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if ($lexerNamed->match($markup)) { |
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$this->variables = $this->variablesFromString($lexerNamed->getStringMatch(2)); |
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$this->name = $lexerNamed->getStringMatch(1); |
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} elseif ($lexerSimple->match($markup)) { |
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$this->variables = $this->variablesFromString($markup); |
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$this->name = "'" . implode('', $this->variables) . "'"; |
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} else { |
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throw new ParseException(sprintf( |
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'Syntax Error in "%s" - Valid syntax: cycle [name :] var [, var2, var3 ...]', |
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'cycle' |
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)); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function render(Context $context): string |
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{ |
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$context->push(); |
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$iteration = 0; |
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$key = $context->get($this->name); |
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if ($context->hasRegister('cycle')) { |
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$cycle = $context->getRegister('cycle'); |
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if (isset($cycle[$key])) { |
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$iteration = $cycle[$key]; |
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} |
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} |
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$result = $context->get($this->variables[$iteration]); |
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if ($result === null) { |
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$result = ''; |
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} |
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$iteration++; |
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if ($iteration >= count($this->variables)) { |
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$iteration = 0; |
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} |
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$context->setRegister('cycle', [$key => $iteration]); |
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$context->pop(); |
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return $result; |
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} |
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/** |
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* |
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* @param string $markup |
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* @return array<int,string> |
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*/ |
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protected function variablesFromString(string $markup): array |
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{ |
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$lexer = new Lexer('/\s*(' . Token::QUOTED_FRAGMENT . ')\s*/'); |
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$parts = explode(',', $markup); |
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$result = []; |
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foreach ($parts as $part) { |
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$lexer->match($part); |
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if ($lexer->getStringMatch(1)) { |
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$result[] = $lexer->getStringMatch(1); |
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} |
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} |
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return $result; |
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} |
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} |
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platine-php /
template
