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aschwarz
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<?php
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/**
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* Smarty Internal Plugin Config File Compiler
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* This is the config file compiler class. It calls the lexer and parser to
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* perform the compiling.
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*
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* @package Smarty
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* @subpackage Config
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* @author Uwe Tews
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*/
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/**
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* Main config file compiler class
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*
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* @package Smarty
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* @subpackage Config
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*/
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class Smarty_Internal_Config_File_Compiler
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{
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/**
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* Lexer class name
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*
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* @var string
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*/
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public $lexer_class;
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/**
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* Parser class name
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*
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* @var string
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*/
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public $parser_class;
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/**
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* Lexer object
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*
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* @var object
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*/
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public $lex;
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/**
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* Parser object
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*
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* @var object
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*/
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public $parser;
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/**
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* Smarty object
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*
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* @var Smarty object
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*/
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public $smarty;
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/**
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* Smarty object
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*
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* @var Smarty_Internal_Template object
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*/
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public $template;
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/**
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* Compiled config data sections and variables
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*
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* @var array
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*/
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public $config_data = array();
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/**
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* compiled config data must always be written
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*
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* @var bool
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*/
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public $write_compiled_code = true;
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/**
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* Initialize compiler
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*
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* @param string $lexer_class class name
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* @param string $parser_class class name
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* @param Smarty $smarty global instance
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*/
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public function __construct($lexer_class, $parser_class, Smarty $smarty)
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{
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$this->smarty = $smarty;
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// get required plugins
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$this->lexer_class = $lexer_class;
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$this->parser_class = $parser_class;
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$this->smarty = $smarty;
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$this->config_data[ 'sections' ] = array();
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$this->config_data[ 'vars' ] = array();
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}
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/**
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* Method to compile Smarty config source.
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*
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* @param Smarty_Internal_Template $template
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*
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* @return bool true if compiling succeeded, false if it failed
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* @throws \SmartyException
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*/
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public function compileTemplate(Smarty_Internal_Template $template)
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{
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$this->template = $template;
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$this->template->compiled->file_dependency[ $this->template->source->uid ] =
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array(
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$this->template->source->filepath,
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$this->template->source->getTimeStamp(),
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$this->template->source->type
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);
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if ($this->smarty->debugging) {
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if (!isset($this->smarty->_debug)) {
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$this->smarty->_debug = new Smarty_Internal_Debug();
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}
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$this->smarty->_debug->start_compile($this->template);
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}
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// init the lexer/parser to compile the config file
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/* @var Smarty_Internal_ConfigFileLexer $this->lex */
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$this->lex = new $this->lexer_class(
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str_replace(
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array(
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"\r\n",
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"\r"
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),
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"\n",
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$template->source->getContent()
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) . "\n",
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$this
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);
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/* @var Smarty_Internal_ConfigFileParser $this->parser */
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$this->parser = new $this->parser_class($this->lex, $this);
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if (function_exists('mb_internal_encoding')
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&& function_exists('ini_get')
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&& ((int)ini_get('mbstring.func_overload')) & 2
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) {
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$mbEncoding = mb_internal_encoding();
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mb_internal_encoding('ASCII');
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} else {
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$mbEncoding = null;
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}
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if ($this->smarty->_parserdebug) {
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$this->parser->PrintTrace();
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}
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// get tokens from lexer and parse them
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while ($this->lex->yylex()) {
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if ($this->smarty->_parserdebug) {
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echo "<br>Parsing {$this->parser->yyTokenName[$this->lex->token]} Token {$this->lex->value} Line {$this->lex->line} \n";
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}
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$this->parser->doParse($this->lex->token, $this->lex->value);
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}
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// finish parsing process
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$this->parser->doParse(0, 0);
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if ($mbEncoding) {
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mb_internal_encoding($mbEncoding);
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}
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if ($this->smarty->debugging) {
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$this->smarty->_debug->end_compile($this->template);
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}
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// template header code
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$template_header =
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"<?php /* Smarty version " . Smarty::SMARTY_VERSION . ", created on " . strftime("%Y-%m-%d %H:%M:%S") .
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"\n";
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$template_header .= " compiled from '{$this->template->source->filepath}' */ ?>\n";
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$code = '<?php $_smarty_tpl->smarty->ext->configLoad->_loadConfigVars($_smarty_tpl, ' .
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var_export($this->config_data, true) . '); ?>';
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return $template_header . $this->template->smarty->ext->_codeFrame->create($this->template, $code);
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}
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/**
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* display compiler error messages without dying
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* If parameter $args is empty it is a parser detected syntax error.
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* In this case the parser is called to obtain information about expected tokens.
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* If parameter $args contains a string this is used as error message
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*
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* @param string $args individual error message or null
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*
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* @throws SmartyCompilerException
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*/
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public function trigger_config_file_error($args = null)
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{
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// get config source line which has error
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$line = $this->lex->line;
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if (isset($args)) {
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// $line--;
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}
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$match = preg_split("/\n/", $this->lex->data);
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$error_text =
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"Syntax error in config file '{$this->template->source->filepath}' on line {$line} '{$match[$line - 1]}' ";
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if (isset($args)) {
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// individual error message
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$error_text .= $args;
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} else {
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// expected token from parser
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foreach ($this->parser->yy_get_expected_tokens($this->parser->yymajor) as $token) {
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$exp_token = $this->parser->yyTokenName[ $token ];
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if (isset($this->lex->smarty_token_names[ $exp_token ])) {
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// token type from lexer
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$expect[] = '"' . $this->lex->smarty_token_names[ $exp_token ] . '"';
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} else {
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// otherwise internal token name
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$expect[] = $this->parser->yyTokenName[ $token ];
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}
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}
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// output parser error message
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$error_text .= ' - Unexpected "' . $this->lex->value . '", expected one of: ' . implode(' , ', $expect);
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}
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throw new SmartyCompilerException($error_text);
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}
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}
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