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<?php |
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/** |
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* Copyright (c) 2013-2016 |
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* |
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* @category Library |
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* @package Dwoo\Plugins\Blocks |
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* @author Jordi Boggiano <[email protected]> |
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* @author David Sanchez <[email protected]> |
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* @copyright 2008-2013 Jordi Boggiano |
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* @copyright 2013-2016 David Sanchez |
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* @license http://dwoo.org/LICENSE Modified BSD License |
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* @version 1.3.0 |
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* @date 2016-09-19 |
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* @link http://dwoo.org/ |
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*/ |
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namespace Dwoo\Plugins\Blocks; |
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use Dwoo\Compiler; |
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use Dwoo\IElseable; |
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use Dwoo\Block\Plugin as BlockPlugin; |
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use Dwoo\ICompilable\Block as ICompilableBlock; |
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/** |
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* Loops over an array and moves the scope into each value, allowing for shorter loop constructs. |
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* Note that to access the array key within a loop block, you have to use the {$_key} variable, |
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* you can not specify it yourself. |
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* <pre> |
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* * from : the array that you want to iterate over |
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* * name : loop name to access it's iterator variables through {$.loop.name.var} see {@link |
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* http://wiki.dwoo.org/index.php/IteratorVariables} for details |
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* </pre> |
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* Example : |
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* instead of a foreach block such as : |
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* <code> |
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* {foreach $variable value} |
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* {$value.foo} {$value.bar} |
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* {/foreach} |
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* </code> |
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* you can do : |
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* <code> |
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* {loop $variable} |
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* {$foo} {$bar} |
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* {/loop} |
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* </code> |
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* This software is provided 'as-is', without any express or implied warranty. |
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* In no event will the authors be held liable for any damages arising from the use of this software. |
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*/ |
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class PluginLoop extends BlockPlugin implements ICompilableBlock, IElseable |
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{ |
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public static $cnt = 0; |
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/** |
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* @param $from |
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* @param string $name |
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*/ |
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public function init($from, $name = 'default') |
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{ |
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} |
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/** |
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* @param Compiler $compiler |
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* @param array $params |
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* @param string $prepend |
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* @param string $append |
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* @param string $type |
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* |
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* @return string |
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*/ |
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public static function preProcessing(Compiler $compiler, array $params, $prepend, $append, $type) |
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{ |
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// get block params and save the current template pointer to use it in the postProcessing method |
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$currentBlock = &$compiler->getCurrentBlock(); |
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$currentBlock['params']['tplPointer'] = $compiler->getPointer(); |
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return ''; |
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} |
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/** |
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* @param Compiler $compiler |
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* @param array $params |
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* @param string $prepend |
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* @param string $append |
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* @param string $content |
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* |
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* @return string |
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*/ |
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public static function postProcessing(Compiler $compiler, array $params, $prepend, $append, $content) |
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{ |
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$params = $compiler->getCompiledParams($params); |
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$tpl = $compiler->getTemplateSource($params['tplPointer']); |
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// assigns params |
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$src = $params['from']; |
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$name = $params['name']; |
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// evaluates which global variables have to be computed |
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$varName = '$dwoo.loop.' . trim($name, '"\'') . '.'; |
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$shortVarName = '$.loop.' . trim($name, '"\'') . '.'; |
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$usesAny = strpos($tpl, $varName) !== false || strpos($tpl, $shortVarName) !== false; |
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$usesFirst = strpos($tpl, $varName . 'first') !== false || strpos($tpl, $shortVarName . 'first') !== false; |
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$usesLast = strpos($tpl, $varName . 'last') !== false || strpos($tpl, $shortVarName . 'last') !== false; |
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$usesIndex = $usesFirst || strpos($tpl, $varName . 'index') !== false || strpos($tpl, $shortVarName . 'index') !== false; |
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$usesIteration = $usesLast || strpos($tpl, $varName . 'iteration') !== false || strpos($tpl, $shortVarName . 'iteration') !== false; |
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$usesShow = strpos($tpl, $varName . 'show') !== false || strpos($tpl, $shortVarName . 'show') !== false; |
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$usesTotal = $usesLast || strpos($tpl, $varName . 'total') !== false || strpos($tpl, $shortVarName . 'total') !== false; |
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if (strpos($name, '$this->scope[') !== false) { |
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$usesAny = $usesFirst = $usesLast = $usesIndex = $usesIteration = $usesShow = $usesTotal = true; |
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} |
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// gets foreach id |
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$cnt = self::$cnt ++; |
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// builds pre processing output |
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$pre = Compiler::PHP_OPEN . "\n" . '$_loop' . $cnt . '_data = ' . $src . ';'; |
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// adds foreach properties |
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if ($usesAny) { |
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$pre .= "\n" . '$this->globals["loop"][' . $name . '] = array' . "\n("; |
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if ($usesIndex) { |
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$pre .= "\n\t" . '"index" => 0,'; |
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} |
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if ($usesIteration) { |
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$pre .= "\n\t" . '"iteration" => 1,'; |
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} |
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if ($usesFirst) { |
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$pre .= "\n\t" . '"first" => null,'; |
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} |
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if ($usesLast) { |
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$pre .= "\n\t" . '"last" => null,'; |
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} |
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if ($usesShow) { |
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$pre .= "\n\t" . '"show" => $this->isTraversable($_loop' . $cnt . '_data, true),'; |
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} |
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if ($usesTotal) { |
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$pre .= "\n\t" . '"total" => $this->count($_loop' . $cnt . '_data),'; |
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} |
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$pre .= "\n);\n" . '$_loop' . $cnt . '_glob =& $this->globals["loop"][' . $name . '];'; |
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} |
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// checks if the loop must be looped |
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$pre .= "\n" . 'if ($this->isTraversable($_loop' . $cnt . '_data' . (isset($params['hasElse']) ? ', true' : '') . ') == true)' . "\n{"; |
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// iterates over keys |
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$pre .= "\n\t" . 'foreach ($_loop' . $cnt . '_data as $tmp_key => $this->scope["-loop-"])' . "\n\t{"; |
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// updates properties |
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if ($usesFirst) { |
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$pre .= "\n\t\t" . '$_loop' . $cnt . '_glob["first"] = (string) ($_loop' . $cnt . '_glob["index"] === 0);'; |
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} |
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if ($usesLast) { |
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$pre .= "\n\t\t" . '$_loop' . $cnt . '_glob["last"] = (string) ($_loop' . $cnt . '_glob["iteration"] === $_loop' . $cnt . '_glob["total"]);'; |
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} |
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$pre .= "\n\t\t" . '$_loop' . $cnt . '_scope = $this->setScope(array("-loop-"));' . "\n/* -- loop start output */\n" . Compiler::PHP_CLOSE; |
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// build post processing output and cache it |
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$post = Compiler::PHP_OPEN . "\n" . '/* -- loop end output */' . "\n\t\t" . '$this->setScope($_loop' . $cnt . '_scope, true);'; |
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// update properties |
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if ($usesIndex) { |
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$post .= "\n\t\t" . '$_loop' . $cnt . '_glob["index"]+=1;'; |
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} |
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if ($usesIteration) { |
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$post .= "\n\t\t" . '$_loop' . $cnt . '_glob["iteration"]+=1;'; |
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} |
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// end loop |
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$post .= "\n\t}\n}\n" . Compiler::PHP_CLOSE; |
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if (isset($params['hasElse'])) { |
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$post .= $params['hasElse']; |
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} |
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return $pre . $content . $post; |
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} |
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} |
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JuKu /
JuKuCMS
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This check looks for parameters that have been defined for a function or method, but which are not used in the method body.