84 lines
3.8 KiB
PHP
84 lines
3.8 KiB
PHP
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<?php
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/**
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* Smarty Internal Plugin Compile Assign
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*
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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 $parameter array with compilation parameter
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* @return string compiled code
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*/
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public function compile($args, $compiler, $parameter)
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{
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// the following must be assigned at runtime because it will be overwritten in Smarty_Internal_Compile_Append
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$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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$compiler->template->tpl_vars[trim($_attr['var'], "'")] = new Smarty_variable(null, true);
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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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}
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?>
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