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304 alex-w 1
<?php
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/**
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* Smarty Internal Plugin Compile Section
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*
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* Compiles the {section} 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 Section Class
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*/
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class Smarty_Internal_Compile_Section extends Smarty_Internal_CompileBase {
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    /**
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    * Compiles code for the {section} tag
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    *
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    * @param array $args array with attributes from parser
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    * @param object $compiler compiler object
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    * @return string compiled code
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    */
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    public function compile($args, $compiler)
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    {
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        $this->compiler = $compiler;
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        $this->required_attributes = array('name', 'loop');
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        $this->optional_attributes = array('start', 'step', 'max', 'show');
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        // check and get attributes
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        $_attr = $this->_get_attributes($args);
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        $this->_open_tag('section');
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        $output = "<?php ";
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        $section_name = $_attr['name'];
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        $output .= "unset(\$_smarty_tpl->tpl_vars['smarty']->value['section'][$section_name]);\n";
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        $section_props = "\$_smarty_tpl->tpl_vars['smarty']->value['section'][$section_name]";
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        foreach ($_attr as $attr_name => $attr_value) {
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            switch ($attr_name) {
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                case 'loop':
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                    $output .= "{$section_props}['loop'] = is_array(\$_loop=$attr_value) ? count(\$_loop) : max(0, (int)\$_loop); unset(\$_loop);\n";
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                    break;
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                case 'show':
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                    if (is_bool($attr_value))
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                        $show_attr_value = $attr_value ? 'true' : 'false';
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                    else
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                        $show_attr_value = "(bool)$attr_value";
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                    $output .= "{$section_props}['show'] = $show_attr_value;\n";
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                    break;
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                case 'name':
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                    $output .= "{$section_props}['$attr_name'] = $attr_value;\n";
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                    break;
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                case 'max':
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                case 'start':
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                    $output .= "{$section_props}['$attr_name'] = (int)$attr_value;\n";
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                    break;
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                case 'step':
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                    $output .= "{$section_props}['$attr_name'] = ((int)$attr_value) == 0 ? 1 : (int)$attr_value;\n";
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                    break;
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            }
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        }
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        if (!isset($_attr['show']))
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            $output .= "{$section_props}['show'] = true;\n";
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        if (!isset($_attr['loop']))
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            $output .= "{$section_props}['loop'] = 1;\n";
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        if (!isset($_attr['max']))
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            $output .= "{$section_props}['max'] = {$section_props}['loop'];\n";
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        else
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            $output .= "if ({$section_props}['max'] < 0)\n" . "    {$section_props}['max'] = {$section_props}['loop'];\n";
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        if (!isset($_attr['step']))
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            $output .= "{$section_props}['step'] = 1;\n";
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        if (!isset($_attr['start']))
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            $output .= "{$section_props}['start'] = {$section_props}['step'] > 0 ? 0 : {$section_props}['loop']-1;\n";
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        else {
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            $output .= "if ({$section_props}['start'] < 0)\n" . "    {$section_props}['start'] = max({$section_props}['step'] > 0 ? 0 : -1, {$section_props}['loop'] + {$section_props}['start']);\n" . "else\n" . "    {$section_props}['start'] = min({$section_props}['start'], {$section_props}['step'] > 0 ? {$section_props}['loop'] : {$section_props}['loop']-1);\n";
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        }
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        $output .= "if ({$section_props}['show']) {\n";
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        if (!isset($_attr['start']) && !isset($_attr['step']) && !isset($_attr['max'])) {
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            $output .= "    {$section_props}['total'] = {$section_props}['loop'];\n";
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        } else {
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            $output .= "    {$section_props}['total'] = min(ceil(({$section_props}['step'] > 0 ? {$section_props}['loop'] - {$section_props}['start'] : {$section_props}['start']+1)/abs({$section_props}['step'])), {$section_props}['max']);\n";
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        }
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        $output .= "    if ({$section_props}['total'] == 0)\n" . "        {$section_props}['show'] = false;\n" . "} else\n" . "    {$section_props}['total'] = 0;\n";
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        $output .= "if ({$section_props}['show']):\n";
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        $output .= "
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            for ({$section_props}['index'] = {$section_props}['start'], {$section_props}['iteration'] = 1;
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                 {$section_props}['iteration'] <= {$section_props}['total'];
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                 {$section_props}['index'] += {$section_props}['step'], {$section_props}['iteration']++):\n";
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        $output .= "{$section_props}['rownum'] = {$section_props}['iteration'];\n";
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        $output .= "{$section_props}['index_prev'] = {$section_props}['index'] - {$section_props}['step'];\n";
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        $output .= "{$section_props}['index_next'] = {$section_props}['index'] + {$section_props}['step'];\n";
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        $output .= "{$section_props}['first']      = ({$section_props}['iteration'] == 1);\n";
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        $output .= "{$section_props}['last']       = ({$section_props}['iteration'] == {$section_props}['total']);\n";
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        $output .= "?>";
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        return $output;
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    }
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}
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?>