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Editing: smarty_internal_config_file_compiler.php

<?php
/**
 * Smarty Internal Plugin Config File Compiler
 * This is the config file compiler class. It calls the lexer and parser to
 * perform the compiling.
 *
 * @package    Smarty
 * @subpackage Config
 * @author     Uwe Tews
 */

/**
 * Main config file compiler class
 *
 * @package    Smarty
 * @subpackage Config
 */
class Smarty_Internal_Config_File_Compiler
{
    /**
     * Lexer class name
     *
     * @var string
     */
    public $lexer_class;

/**
     * Parser class name
     *
     * @var string
     */
    public $parser_class;

/**
     * Lexer object
     *
     * @var object
     */
    public $lex;

/**
     * Parser object
     *
     * @var object
     */
    public $parser;

/**
     * Smarty object
     *
     * @var Smarty object
     */
    public $smarty;

/**
     * Smarty object
     *
     * @var Smarty_Internal_Template object
     */
    public $template;

/**
     * Compiled config data sections and variables
     *
     * @var array
     */
    public $config_data = array();

/**
     * compiled config data must always be written
     *
     * @var bool
     */
    public $write_compiled_code = true;

/**
     * 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 $smarty)
    {
        $this->smarty = $smarty;
        // get required plugins
        $this->lexer_class = $lexer_class;
        $this->parser_class = $parser_class;
        $this->smarty = $smarty;
        $this->config_data[ 'sections' ] = array();
        $this->config_data[ 'vars' ] = array();
    }

/**
     * Method to compile Smarty config source.
     *
     * @param Smarty_Internal_Template $template
     *
     * @return bool true if compiling succeeded, false if it failed
     * @throws \SmartyException
     */
    public function compileTemplate(Smarty_Internal_Template $template)
    {
        $this->template = $template;
        $this->template->compiled->file_dependency[ $this->template->source->uid ] =
            array(
                $this->template->source->filepath,
                $this->template->source->getTimeStamp(),
                $this->template->source->type
            );
        if ($this->smarty->debugging) {
            if (!isset($this->smarty->_debug)) {
                $this->smarty->_debug = new Smarty_Internal_Debug();
            }
            $this->smarty->_debug->start_compile($this->template);
        }
        // init the lexer/parser to compile the config file
        /* @var Smarty_Internal_ConfigFileLexer $this->lex */
        $this->lex = new $this->lexer_class(
            str_replace(
                array(
                    "\r\n",
                    "\r"
                ),
                "\n",
                $template->source->getContent()
            ) . "\n",
            $this
        );
        /* @var Smarty_Internal_ConfigFileParser $this->parser */
        $this->parser = new $this->parser_class($this->lex, $this);
        if (function_exists('mb_internal_encoding')
            && function_exists('ini_get')
            && ((int)ini_get('mbstring.func_overload')) & 2
        ) {
            $mbEncoding = mb_internal_encoding();
            mb_internal_encoding('ASCII');
        } else {
            $mbEncoding = null;
        }
        if ($this->smarty->_parserdebug) {
            $this->parser->PrintTrace();
        }
        // get tokens from lexer and parse them
        while ($this->lex->yylex()) {
            if ($this->smarty->_parserdebug) {
                echo "<br>Parsing  {$this->parser->yyTokenName[$this->lex->token]} Token {$this->lex->value} Line {$this->lex->line} \n";
            }
            $this->parser->doParse($this->lex->token, $this->lex->value);
        }
        // finish parsing process
        $this->parser->doParse(0, 0);
        if ($mbEncoding) {
            mb_internal_encoding($mbEncoding);
        }
        if ($this->smarty->debugging) {
            $this->smarty->_debug->end_compile($this->template);
        }
        // template header code
        $template_header = sprintf(
            "<?php /* Smarty version %s, created on %s\n         compiled from '%s' */ ?>\n",
            Smarty::SMARTY_VERSION,
            date("Y-m-d H:i:s"),
            str_replace('*/', '* /' , $this->template->source->filepath)
        );
        $code = '<?php $_smarty_tpl->smarty->ext->configLoad->_loadConfigVars($_smarty_tpl, ' .
                var_export($this->config_data, true) . '); ?>';
        return $template_header . $this->template->smarty->ext->_codeFrame->create($this->template, $code);
    }

/**
     * display compiler error messages without dying
     * If parameter $args is empty it is a parser detected syntax error.
     * In this case the parser is called to obtain information about expected tokens.
     * If parameter $args contains a string this is used as error message
     *
     * @param string $args individual error message or null
     *
     * @throws SmartyCompilerException
     */
    public function trigger_config_file_error($args = null)
    {
        // get config source line which has error
        $line = $this->lex->line;
        if (isset($args)) {
            // $line--;
        }
        $match = preg_split("/\n/", $this->lex->data);
        $error_text =
            "Syntax error in config file '{$this->template->source->filepath}' on line {$line} '{$match[$line - 1]}' ";
        if (isset($args)) {
            // individual error message
            $error_text .= $args;
        } else {
            // expected token from parser
            foreach ($this->parser->yy_get_expected_tokens($this->parser->yymajor) as $token) {
                $exp_token = $this->parser->yyTokenName[ $token ];
                if (isset($this->lex->smarty_token_names[ $exp_token ])) {
                    // token type from lexer
                    $expect[] = '"' . $this->lex->smarty_token_names[ $exp_token ] . '"';
                } else {
                    // otherwise internal token name
                    $expect[] = $this->parser->yyTokenName[ $token ];
                }
            }
            // output parser error message
            $error_text .= ' - Unexpected "' . $this->lex->value . '", expected one of: ' . implode(' , ', $expect);
        }
        throw new SmartyCompilerException($error_text);
    }
}

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