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<?php
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/**
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* Smarty Internal Plugin Compile For
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* Compiles the {for} {forelse} {/for} tags
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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 For 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_For extends Smarty_Internal_CompileBase
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{
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/**
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* Compiles code for the {for} tag
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* Smarty 3 does implement two different syntax's:
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* - {for $var in $array}
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* For looping over arrays or iterators
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* - {for $x=0; $x<$y; $x++}
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* For general loops
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* The parser is generating different sets of attribute by which this compiler can
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* determine which syntax is used.
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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, $parameter)
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{
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$compiler->loopNesting++;
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if ($parameter === 0) {
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$this->required_attributes = array('start', 'to');
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$this->optional_attributes = array('max', 'step');
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} else {
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$this->required_attributes = array('start', 'ifexp', 'var', 'step');
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$this->optional_attributes = array();
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}
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$this->mapCache = array();
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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$output = "<?php\n";
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if ($parameter === 1) {
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foreach ($_attr[ 'start' ] as $_statement) {
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if (is_array($_statement[ 'var' ])) {
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$var = $_statement[ 'var' ][ 'var' ];
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$index = $_statement[ 'var' ][ 'smarty_internal_index' ];
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} else {
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$var = $_statement[ 'var' ];
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$index = '';
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}
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$output .= "\$_smarty_tpl->tpl_vars[$var] = new Smarty_Variable(null, \$_smarty_tpl->isRenderingCache);\n";
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$output .= "\$_smarty_tpl->tpl_vars[$var]->value{$index} = {$_statement['value']};\n";
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}
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if (is_array($_attr[ 'var' ])) {
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$var = $_attr[ 'var' ][ 'var' ];
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$index = $_attr[ 'var' ][ 'smarty_internal_index' ];
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} else {
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$var = $_attr[ 'var' ];
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$index = '';
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}
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$output .= "if ($_attr[ifexp]) {\nfor (\$_foo=true;$_attr[ifexp]; \$_smarty_tpl->tpl_vars[$var]->value{$index}$_attr[step]) {\n";
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} else {
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$_statement = $_attr[ 'start' ];
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if (is_array($_statement[ 'var' ])) {
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$var = $_statement[ 'var' ][ 'var' ];
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$index = $_statement[ 'var' ][ 'smarty_internal_index' ];
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} else {
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$var = $_statement[ 'var' ];
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$index = '';
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}
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$output .= "\$_smarty_tpl->tpl_vars[$var] = new Smarty_Variable(null, \$_smarty_tpl->isRenderingCache);";
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if (isset($_attr[ 'step' ])) {
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$output .= "\$_smarty_tpl->tpl_vars[$var]->step = $_attr[step];";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$var]->step = 1;";
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}
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if (isset($_attr[ 'max' ])) {
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$output .= "\$_smarty_tpl->tpl_vars[$var]->total = (int) min(ceil((\$_smarty_tpl->tpl_vars[$var]->step > 0 ? $_attr[to]+1 - ($_statement[value]) : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$var]->step)),$_attr[max]);\n";
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} else {
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$output .= "\$_smarty_tpl->tpl_vars[$var]->total = (int) ceil((\$_smarty_tpl->tpl_vars[$var]->step > 0 ? $_attr[to]+1 - ($_statement[value]) : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$var]->step));\n";
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}
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$output .= "if (\$_smarty_tpl->tpl_vars[$var]->total > 0) {\n";
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$output .= "for (\$_smarty_tpl->tpl_vars[$var]->value{$index} = $_statement[value], \$_smarty_tpl->tpl_vars[$var]->iteration = 1;\$_smarty_tpl->tpl_vars[$var]->iteration <= \$_smarty_tpl->tpl_vars[$var]->total;\$_smarty_tpl->tpl_vars[$var]->value{$index} += \$_smarty_tpl->tpl_vars[$var]->step, \$_smarty_tpl->tpl_vars[$var]->iteration++) {\n";
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$output .= "\$_smarty_tpl->tpl_vars[$var]->first = \$_smarty_tpl->tpl_vars[$var]->iteration === 1;";
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$output .= "\$_smarty_tpl->tpl_vars[$var]->last = \$_smarty_tpl->tpl_vars[$var]->iteration === \$_smarty_tpl->tpl_vars[$var]->total;";
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}
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$output .= '?>';
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$this->openTag($compiler, 'for', array('for', $compiler->nocache));
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// maybe nocache because of nocache variables
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$compiler->nocache = $compiler->nocache | $compiler->tag_nocache;
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// return compiled code
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return $output;
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}
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}
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/**
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* Smarty Internal Plugin Compile Forelse 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_Forelse extends Smarty_Internal_CompileBase
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{
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/**
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* Compiles code for the {forelse} 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, $parameter)
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{
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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list($openTag, $nocache) = $this->closeTag($compiler, array('for'));
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$this->openTag($compiler, 'forelse', array('forelse', $nocache));
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return "<?php }} else { ?>";
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}
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}
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/**
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* Smarty Internal Plugin Compile Forclose 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_Forclose extends Smarty_Internal_CompileBase
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{
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/**
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* Compiles code for the {/for} 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, $parameter)
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{
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$compiler->loopNesting--;
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// check and get attributes
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$_attr = $this->getAttributes($compiler, $args);
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// must endblock be nocache?
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if ($compiler->nocache) {
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$compiler->tag_nocache = true;
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}
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list($openTag, $compiler->nocache) = $this->closeTag($compiler, array('for', 'forelse'));
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$output = "<?php }\n";
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if ($openTag !== 'forelse') {
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$output .= "}\n";
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}
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$output .= "?>";
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return $output;
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}
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}
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