<?php

/**

 * Smarty Internal Plugin Compile Foreach

 *

 * Compiles the {foreach} {foreachelse} {/foreach} tags

 *

 * @package Smarty

 * @subpackage Compiler

 * @author Uwe Tews

 */



/**

 * Smarty Internal Plugin Compile Foreach Class

 *

 * @package Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Foreach extends Smarty_Internal_CompileBase {

    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $required_attributes = array('from', 'item');

    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $optional_attributes = array('name', 'key');

    /**

     * Attribute definition: Overwrites base class.

     *

     * @var array

     * @see Smarty_Internal_CompileBase

     */

    public $shorttag_order = array('from','item','key','name');



    /**

     * Compiles code for the {foreach} tag

     *

     * @param array  $args      array with attributes from parser

     * @param object $compiler  compiler object

     * @param array  $parameter array with compilation parameter

     * @return string compiled code

     */

    public function compile($args, $compiler, $parameter)

    {

        $tpl = $compiler->template;

        // check and get attributes

        $_attr = $this->getAttributes($compiler, $args);



        $from = $_attr['from'];

        $item = $_attr['item'];

        if (!strncmp("\$_smarty_tpl->tpl_vars[$item]", $from, strlen($item) + 24)) {

            $compiler->trigger_template_error("item variable {$item} may not be the same variable as at 'from'", $compiler->lex->taglineno);

        }



        if (isset($_attr['key'])) {

            $key = $_attr['key'];

        } else {

            $key = null;

        }



        $this->openTag($compiler, 'foreach', array('foreach', $compiler->nocache, $item, $key));

        // maybe nocache because of nocache variables

        $compiler->nocache = $compiler->nocache | $compiler->tag_nocache;



        if (isset($_attr['name'])) {

            $name = $_attr['name'];

            $has_name = true;

            $SmartyVarName = '$smarty.foreach.' . trim($name, '\'"') . '.';

        } else {

            $name = null;

            $has_name = false;

        }

        $ItemVarName = '$' . trim($item, '\'"') . '@';

        // evaluates which Smarty variables and properties have to be computed

        if ($has_name) {

            $usesSmartyFirst = strpos($tpl->source->content, $SmartyVarName . 'first') !== false;

            $usesSmartyLast = strpos($tpl->source->content, $SmartyVarName . 'last') !== false;

            $usesSmartyIndex = strpos($tpl->source->content, $SmartyVarName . 'index') !== false;

            $usesSmartyIteration = strpos($tpl->source->content, $SmartyVarName . 'iteration') !== false;

            $usesSmartyShow = strpos($tpl->source->content, $SmartyVarName . 'show') !== false;

            $usesSmartyTotal = strpos($tpl->source->content, $SmartyVarName . 'total') !== false;

        } else {

            $usesSmartyFirst = false;

            $usesSmartyLast = false;

            $usesSmartyTotal = false;

            $usesSmartyShow = false;

        }



        $usesPropFirst = $usesSmartyFirst || strpos($tpl->source->content, $ItemVarName . 'first') !== false;

        $usesPropLast = $usesSmartyLast || strpos($tpl->source->content, $ItemVarName . 'last') !== false;

        $usesPropIndex = $usesPropFirst || strpos($tpl->source->content, $ItemVarName . 'index') !== false;

        $usesPropIteration = $usesPropLast || strpos($tpl->source->content, $ItemVarName . 'iteration') !== false;

        $usesPropShow = strpos($tpl->source->content, $ItemVarName . 'show') !== false;

        $usesPropTotal = $usesSmartyTotal || $usesSmartyShow || $usesPropShow || $usesPropLast || strpos($tpl->source->content, $ItemVarName . 'total') !== false;

        // generate output code

        $output = "<?php ";

        $output .= " \$_smarty_tpl->tpl_vars[$item] = new Smarty_Variable; \$_smarty_tpl->tpl_vars[$item]->_loop = false;\n";

        if ($key != null) {

            $output .= " \$_smarty_tpl->tpl_vars[$key] = new Smarty_Variable;\n";

        }

        $output .= " \$_from = $from; if (!is_array(\$_from) && !is_object(\$_from)) { settype(\$_from, 'array');}\n";

        if ($usesPropTotal) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->total= \$_smarty_tpl->_count(\$_from);\n";

        }

        if ($usesPropIteration) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration=0;\n";

        }

        if ($usesPropIndex) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->index=-1;\n";

        }

        if ($usesPropShow) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->show = (\$_smarty_tpl->tpl_vars[$item]->total > 0);\n";

        }

        if ($has_name) {

            if ($usesSmartyTotal) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['total'] = \$_smarty_tpl->tpl_vars[$item]->total;\n";

            }

            if ($usesSmartyIteration) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']=0;\n";

            }

            if ($usesSmartyIndex) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']=-1;\n";

            }

            if ($usesSmartyShow) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['show']=(\$_smarty_tpl->tpl_vars[$item]->total > 0);\n";

            }

        }

        $output .= "foreach (\$_from as \$_smarty_tpl->tpl_vars[$item]->key => \$_smarty_tpl->tpl_vars[$item]->value){\n\$_smarty_tpl->tpl_vars[$item]->_loop = true;\n";

        if ($key != null) {

            $output .= " \$_smarty_tpl->tpl_vars[$key]->value = \$_smarty_tpl->tpl_vars[$item]->key;\n";

        }

        if ($usesPropIteration) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->iteration++;\n";

        }

        if ($usesPropIndex) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->index++;\n";

        }

        if ($usesPropFirst) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->first = \$_smarty_tpl->tpl_vars[$item]->index === 0;\n";

        }

        if ($usesPropLast) {

            $output .= " \$_smarty_tpl->tpl_vars[$item]->last = \$_smarty_tpl->tpl_vars[$item]->iteration === \$_smarty_tpl->tpl_vars[$item]->total;\n";

        }

        if ($has_name) {

            if ($usesSmartyFirst) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['first'] = \$_smarty_tpl->tpl_vars[$item]->first;\n";

            }

            if ($usesSmartyIteration) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['iteration']++;\n";

            }

            if ($usesSmartyIndex) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['index']++;\n";

            }

            if ($usesSmartyLast) {

                $output .= " \$_smarty_tpl->tpl_vars['smarty']->value['foreach'][$name]['last'] = \$_smarty_tpl->tpl_vars[$item]->last;\n";

            }

        }

        $output .= "?>";



        return $output;

    }

}



/**

 * Smarty Internal Plugin Compile Foreachelse Class

 *

 * @package Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Foreachelse extends Smarty_Internal_CompileBase {



    /**

     * Compiles code for the {foreachelse} tag

     *

     * @param array  $args array with attributes from parser

     * @param object $compiler compiler object

     * @param array  $parameter array with compilation parameter

     * @return string compiled code

     */

    public function compile($args, $compiler, $parameter)

    {

        // check and get attributes

        $_attr = $this->getAttributes($compiler, $args);



        list($openTag, $nocache, $item, $key) = $this->closeTag($compiler, array('foreach'));

        $this->openTag($compiler, 'foreachelse', array('foreachelse', $nocache, $item, $key));



        return "<?php }\nif (!\$_smarty_tpl->tpl_vars[$item]->_loop) {\n?>";

    }



}



/**

 * Smarty Internal Plugin Compile Foreachclose Class

 *

 * @package Smarty

 * @subpackage Compiler

 */

class Smarty_Internal_Compile_Foreachclose extends Smarty_Internal_CompileBase {



    /**

     * Compiles code for the {/foreach} tag

     *

     * @param array  $args      array with attributes from parser

     * @param object $compiler  compiler object

     * @param array  $parameter array with compilation parameter

     * @return string compiled code

     */

    public function compile($args, $compiler, $parameter)

    {

        // check and get attributes

        $_attr = $this->getAttributes($compiler, $args);

        // must endblock be nocache?

        if ($compiler->nocache) {

            $compiler->tag_nocache = true;

        }



        list($openTag, $compiler->nocache, $item, $key) = $this->closeTag($compiler, array('foreach', 'foreachelse'));



        return "<?php } ?>";

    }



}



?>