library/smarty/libs/sysplugins/smarty_internal_compile_break.php
author Markus Broeker<broeker.markus@googlemail.com>
Sun, 14 Feb 2016 21:40:29 +0100
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<?php
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/**
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 * Smarty Internal Plugin Compile Break
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 * Compiles the {break} 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 Break Class
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 *
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 * @package    Smarty
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 * @subpackage Compiler
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 */
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class Smarty_Internal_Compile_Break extends Smarty_Internal_CompileBase {
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    /**
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     * Attribute definition: Overwrites base class.
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     *
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     * @var array
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     * @see Smarty_Internal_CompileBase
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     */
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    public $optional_attributes = array('levels');
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    /**
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     * Attribute definition: Overwrites base class.
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     *
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     * @var array
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     * @see Smarty_Internal_CompileBase
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     */
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    public $shorttag_order = array('levels');
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    /**
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     * Compiles code for the {break} 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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     * @param  array $parameter array with compilation parameter
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     *
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     * @return string compiled code
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     */
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    public function compile($args, $compiler, $parameter) {
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        static $_is_loopy = array('for' => true, 'foreach' => true, 'while' => true, 'section' => true);
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        // check and get attributes
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        $_attr = $this->getAttributes($compiler, $args);
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        if ($_attr['nocache'] === true) {
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            $compiler->trigger_template_error('nocache option not allowed', $compiler->lex->taglineno);
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        }
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        if (isset($_attr['levels'])) {
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            if (!is_numeric($_attr['levels'])) {
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                $compiler->trigger_template_error('level attribute must be a numeric constant', $compiler->lex->taglineno);
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            }
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            $_levels = $_attr['levels'];
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        } else {
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            $_levels = 1;
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        }
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        $level_count = $_levels;
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        $stack_count = count($compiler->_tag_stack) - 1;
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        while ($level_count > 0 && $stack_count >= 0) {
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            if (isset($_is_loopy[$compiler->_tag_stack[$stack_count][0]])) {
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                $level_count--;
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            }
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            $stack_count--;
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        }
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        if ($level_count != 0) {
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            $compiler->trigger_template_error("cannot break {$_levels} level(s)", $compiler->lex->taglineno);
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        }
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        return "<?php break {$_levels};?>";
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    }
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}