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<?php
/**
* Smarty Internal Plugin Compile Break
* Compiles the {break} tag
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* Smarty Internal Plugin Compile Break Class
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_Compile_Break extends Smarty_Internal_CompileBase
{
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $optional_attributes = array('levels');
/**
* Attribute definition: Overwrites base class.
*
* @var array
* @see Smarty_Internal_CompileBase
*/
public $shorttag_order = array('levels');
/**
* Tag name may be overloaded by Smarty_Internal_Compile_Continue
*
* @var string
*/
public $tag = 'break';
/**
* Compiles code for the {break} tag
*
* @param array $args array with attributes from parser
* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
*
* @return string compiled code
* @throws \SmartyCompilerException
*/
public function compile($args, Smarty_Internal_TemplateCompilerBase $compiler)
{
list($levels, $foreachLevels) = $this->checkLevels($args, $compiler);
$output = "<?php ";
if ($foreachLevels > 0 && $this->tag === 'continue') {
$foreachLevels--;
}
if ($foreachLevels > 0) {
/* @var Smarty_Internal_Compile_Foreach $foreachCompiler */
$foreachCompiler = $compiler->getTagCompiler('foreach');
$output .= $foreachCompiler->compileRestore($foreachLevels);
}
$output .= "{$this->tag} {$levels};?>";
return $output;
}
/**
* check attributes and return array of break and foreach levels
*
* @param array $args array with attributes from parser
* @param \Smarty_Internal_TemplateCompilerBase $compiler compiler object
*
* @return array
* @throws \SmartyCompilerException
*/
public function checkLevels($args, Smarty_Internal_TemplateCompilerBase $compiler)
{
static $_is_loopy = array('for' => true, 'foreach' => true, 'while' => true, 'section' => true);
// check and get attributes
$_attr = $this->getAttributes($compiler, $args);
if ($_attr[ 'nocache' ] === true) {
$compiler->trigger_template_error('nocache option not allowed', null, true);
}
if (isset($_attr[ 'levels' ])) {
if (!is_numeric($_attr[ 'levels' ])) {
$compiler->trigger_template_error('level attribute must be a numeric constant', null, true);
}
$levels = $_attr[ 'levels' ];
} else {
$levels = 1;
}
$level_count = $levels;
$stack_count = count($compiler->_tag_stack) - 1;
$foreachLevels = 0;
$lastTag = '';
while ($level_count > 0 && $stack_count >= 0) {
if (isset($_is_loopy[ $compiler->_tag_stack[ $stack_count ][ 0 ] ])) {
$lastTag = $compiler->_tag_stack[ $stack_count ][ 0 ];
if ($level_count === 0) {
break;
}
$level_count--;
if ($compiler->_tag_stack[ $stack_count ][ 0 ] === 'foreach') {
$foreachLevels++;
}
}
$stack_count--;
}
if ($level_count !== 0) {
$compiler->trigger_template_error("cannot {$this->tag} {$levels} level(s)", null, true);
}
if ($lastTag === 'foreach' && $this->tag === 'break' && $foreachLevels > 0) {
$foreachLevels--;
}
return array($levels, $foreachLevels);
}
}
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