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