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<?php
/**
* Smarty Internal Plugin Smarty Template Compiler Base
* This file contains the basic classes and methods for compiling Smarty templates with lexer/parser
*
* @package Smarty
* @subpackage Compiler
* @author Uwe Tews
*/
/**
* Class SmartyTemplateCompiler
*
* @package Smarty
* @subpackage Compiler
*/
class Smarty_Internal_SmartyTemplateCompiler extends Smarty_Internal_TemplateCompilerBase
{
/**
* Lexer class name
*
* @var string
*/
public $lexer_class;
/**
* Parser class name
*
* @var string
*/
public $parser_class;
/**
* array of vars which can be compiled in local scope
*
* @var array
*/
public $local_var = array();
/**
* Initialize compiler
*
* @param string $lexer_class class name
* @param string $parser_class class name
* @param Smarty $smarty global instance
*/
public function __construct($lexer_class, $parser_class, $smarty)
{
$this->smarty = $smarty;
parent::__construct();
// get required plugins
$this->lexer_class = $lexer_class;
$this->parser_class = $parser_class;
}
/**
* method to compile a Smarty template
*
* @param mixed $_content template source
* @param bool $isTemplateSource
*
* @return bool true if compiling succeeded, false if it failed
* @throws \SmartyCompilerException
*/
protected function doCompile($_content, $isTemplateSource = false)
{
/* here is where the compiling takes place. Smarty
tags in the templates are replaces with PHP code,
then written to compiled files. */
// init the lexer/parser to compile the template
$this->parser = new $this->parser_class(new $this->lexer_class(str_replace(array("\r\n",
"\r"), "\n", $_content), $this), $this);
if ($isTemplateSource) {
$this->parser->insertPhpCode("<?php\n\$_smarty_tpl->properties['nocache_hash'] = '{$this->nocache_hash}';\n?>\n");
}
if ($this->inheritance_child) {
// start state on child templates
$this->parser->lex->yypushstate(Smarty_Internal_Templatelexer::CHILDBODY);
}
if (function_exists('mb_internal_encoding') && ((int) ini_get('mbstring.func_overload')) & 2) {
$mbEncoding = mb_internal_encoding();
mb_internal_encoding('ASCII');
} else {
$mbEncoding = null;
}
if ($this->smarty->_parserdebug) {
$this->parser->PrintTrace();
$this->parser->lex->PrintTrace();
}
// get tokens from lexer and parse them
while ($this->parser->lex->yylex()) {
if ($this->smarty->_parserdebug) {
echo "<pre>Line {$this->parser->lex->line} Parsing {$this->parser->yyTokenName[$this->parser->lex->token]} Token " .
htmlentities($this->parser->lex->value) . "</pre>";
}
$this->parser->doParse($this->parser->lex->token, $this->parser->lex->value);
}
// finish parsing process
$this->parser->doParse(0, 0);
if ($mbEncoding) {
mb_internal_encoding($mbEncoding);
}
// check for unclosed tags
if (count($this->_tag_stack) > 0) {
// get stacked info
list($openTag, $_data) = array_pop($this->_tag_stack);
$this->trigger_template_error("unclosed {$this->smarty->left_delimiter}" . $openTag .
"{$this->smarty->right_delimiter} tag");
}
// return compiled code
return $this->parser->retvalue;
}
}
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