Viewing file:  smarty_internal_compile_for.php (5.91 KB) -rw-r--r--
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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
*/
class Smarty_Internal_Compile_For extends Smarty_Internal_CompileBase {
/**
* Compiles code for the {for} tag
*
* Smarty 3 does implement two different sytaxes:
*
* - {for $var in $array}
* For looping over arrays or iterators
*
* - {for $x=0; $x<$y; $x++}
* For general loops
*
* The parser is gereration different sets of attribute by which this compiler can
* determin which syntax is used.
*
* @param array $args array with attributes from parser
* @param object $compiler compiler object
* @return string compiled code
*/
public function compile($args, $compiler)
{
$this->compiler = $compiler;
// {for $x=0; $x<$y; $x++} syntax
if (isset($args['ifexp'])) {
$this->required_attributes = array('ifexp', 'start', 'loop', 'varloop');
} else {
$this->required_attributes = array('start', 'to');
$this->optional_attributes = array('step', 'max');
}
// check and get attributes
$_attr = $this->_get_attributes($args);
$local_vars = array();
$output = "<?php ";
if (isset($_attr['ifexp'])) {
foreach ($_attr['start'] as $_statement) {
$output .= " \$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
$output .= " \$_smarty_tpl->tpl_vars[$_statement[var]]->value = $_statement[value];\n";
$compiler->local_var[$_statement['var']] = true;
$local_vars[] = $_statement['var'];
}
$output .= " if ($_attr[ifexp]){ for (\$_foo=true;$_attr[ifexp]; \$_smarty_tpl->tpl_vars[$_attr[varloop]]->value$_attr[loop]){\n";
} else {
$_statement = $_attr['start'];
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]] = new Smarty_Variable;";
$compiler->local_var[$_statement['var']] = true;
$local_vars[] = $_statement['var'];
if (isset($_attr['step'])) {
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = $_attr[step];";
} else {
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->step = ($_attr[to] - ($_statement[value]) < 0) ? -1 : 1;";
}
if (isset($_attr['max'])) {
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->total = (int)min(ceil((\$_smarty_tpl->tpl_vars[$_statement[var]]->step > 0 ? $_attr[to]+1 - $_statement[value] : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$_statement[var]]->step)),$_attr[max]);\n";
} else {
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->total = (int)ceil((\$_smarty_tpl->tpl_vars[$_statement[var]]->step > 0 ? $_attr[to]+1 - $_statement[value] : $_statement[value]-($_attr[to])+1)/abs(\$_smarty_tpl->tpl_vars[$_statement[var]]->step));\n";
}
$output .= "if (\$_smarty_tpl->tpl_vars[$_statement[var]]->total > 0){\n";
$output .= "for (\$_smarty_tpl->tpl_vars[$_statement[var]]->value = $_statement[value], \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration = 1;\$_smarty_tpl->tpl_vars[$_statement[var]]->iteration <= \$_smarty_tpl->tpl_vars[$_statement[var]]->total;\$_smarty_tpl->tpl_vars[$_statement[var]]->value += \$_smarty_tpl->tpl_vars[$_statement[var]]->step, \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration++){\n";
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->first = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == 1;";
$output .= "\$_smarty_tpl->tpl_vars[$_statement[var]]->last = \$_smarty_tpl->tpl_vars[$_statement[var]]->iteration == \$_smarty_tpl->tpl_vars[$_statement[var]]->total;";
}
$output .= "?>";
$this->_open_tag('for', array('for', $this->compiler->nocache, $local_vars));
// maybe nocache because of nocache variables
$this->compiler->nocache = $this->compiler->nocache | $this->compiler->tag_nocache;
// return compiled code
return $output;
}
}
/**
* Smarty Internal Plugin Compile Forelse Class
*/
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 $compiler compiler object
* @return string compiled code
*/
public function compile($args, $compiler)
{
$this->compiler = $compiler;
// check and get attributes
$_attr = $this->_get_attributes($args);
list($_open_tag, $nocache, $local_vars) = $this->_close_tag(array('for'));
$this->_open_tag('forelse', array('forelse', $nocache, $local_vars));
return "<?php }} else { ?>";
}
}
/**
* Smarty Internal Plugin Compile Forclose Class
*/
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 $compiler compiler object
* @return string compiled code
*/
public function compile($args, $compiler)
{
$this->compiler = $compiler;
// check and get attributes
$_attr = $this->_get_attributes($args);
// must endblock be nocache?
if ($this->compiler->nocache) {
$this->compiler->tag_nocache = true;
}
list($_open_tag, $this->compiler->nocache, $local_vars) = $this->_close_tag(array('for', 'forelse'));
foreach ($local_vars as $var) {
unset($compiler->local_var[$var]);
}
if ($_open_tag == 'forelse')
return "<?php } ?>";
else
return "<?php }} ?>";
}
}
?>
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