library/smarty/libs/sysplugins/smarty_internal_compile_assign.php
author Markus Bröker <broeker.markus@googlemail.com>
Sat, 14 Nov 2015 02:40:44 +0100
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Request::hasPost: Array ist immer gesetzt, Inhalt variiert
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<?php
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/**
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 * Smarty Internal Plugin Compile Assign
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 * Compiles the {assign} tag
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 *
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 * @package    Smarty
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 * @subpackage Compiler
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 * @author     Uwe Tews
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 */
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/**
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 * Smarty Internal Plugin Compile Assign Class
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 *
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 * @package    Smarty
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 * @subpackage Compiler
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 */
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class Smarty_Internal_Compile_Assign extends Smarty_Internal_CompileBase {
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    /**
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     * Compiles code for the {assign} tag
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     *
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     * @param  array $args array with attributes from parser
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     * @param  object $compiler compiler object
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     * @param  array $parameter array with compilation parameter
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     *
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     * @return string compiled code
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     */
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    public function compile($args, $compiler, $parameter) {
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        // the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append
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        $this->required_attributes = array('var', 'value');
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        $this->shorttag_order = array('var', 'value');
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        $this->optional_attributes = array('scope');
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        $_nocache = 'null';
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        $_scope = Smarty::SCOPE_LOCAL;
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        // check and get attributes
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        $_attr = $this->getAttributes($compiler, $args);
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        // nocache ?
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        if ($compiler->tag_nocache || $compiler->nocache) {
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            $_nocache = 'true';
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            // create nocache var to make it know for further compiling
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            if (isset($compiler->template->tpl_vars[trim($_attr['var'], "'")])) {
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                $compiler->template->tpl_vars[trim($_attr['var'], "'")]->nocache = true;
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            } else {
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                $compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_Variable(null, true);
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            }
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        }
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        // scope setup
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        if (isset($_attr['scope'])) {
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            $_attr['scope'] = trim($_attr['scope'], "'\"");
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            if ($_attr['scope'] == 'parent') {
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                $_scope = Smarty::SCOPE_PARENT;
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            } elseif ($_attr['scope'] == 'root') {
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                $_scope = Smarty::SCOPE_ROOT;
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            } elseif ($_attr['scope'] == 'global') {
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                $_scope = Smarty::SCOPE_GLOBAL;
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            } else {
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                $compiler->trigger_template_error('illegal value for "scope" attribute', $compiler->lex->taglineno);
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            }
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        }
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        // compiled output
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        if (isset($parameter['smarty_internal_index'])) {
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            $output = "<?php \$_smarty_tpl->createLocalArrayVariable($_attr[var], $_nocache, $_scope);\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value$parameter[smarty_internal_index] = $_attr[value];";
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        } else {
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            // implement Smarty2's behaviour of variables assigned by reference
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            if ($compiler->template->smarty instanceof SmartyBC) {
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                $output = "<?php if (isset(\$_smarty_tpl->tpl_vars[$_attr[var]])) {\$_smarty_tpl->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
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                $output .= "\n\$_smarty_tpl->tpl_vars[$_attr[var]]->value = $_attr[value]; \$_smarty_tpl->tpl_vars[$_attr[var]]->nocache = $_nocache; \$_smarty_tpl->tpl_vars[$_attr[var]]->scope = $_scope;";
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                $output .= "\n} else \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);";
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            } else {
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                $output = "<?php \$_smarty_tpl->tpl_vars[$_attr[var]] = new Smarty_Variable($_attr[value], $_nocache, $_scope);";
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            }
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        }
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        if ($_scope == Smarty::SCOPE_PARENT) {
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            $output .= "\nif (\$_smarty_tpl->parent != null) \$_smarty_tpl->parent->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
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        } elseif ($_scope == Smarty::SCOPE_ROOT || $_scope == Smarty::SCOPE_GLOBAL) {
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            $output .= "\n\$_ptr = \$_smarty_tpl->parent; while (\$_ptr != null) {\$_ptr->tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]]; \$_ptr = \$_ptr->parent; }";
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        }
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        if ($_scope == Smarty::SCOPE_GLOBAL) {
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            $output .= "\nSmarty::\$global_tpl_vars[$_attr[var]] = clone \$_smarty_tpl->tpl_vars[$_attr[var]];";
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        }
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        $output .= '?>';
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        return $output;
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    }
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}