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<?php
/**
* Smarty Internal Plugin Config File Compiler
* This is the config file compiler class. It calls the lexer and parser to
* perform the compiling.
*
* @author Uwe Tews
*/
namespace Smarty\Compiler;
use Smarty\Lexer\ConfigfileLexer;
use Smarty\Parser\ConfigfileParser;
use Smarty\Smarty;
use Smarty\Template;
use Smarty\CompilerException;
/**
* Main config file compiler class
*
*/
class Configfile extends BaseCompiler {
/**
* Lexer object
*
* @var ConfigfileLexer
*/
public $lex;
/**
* Parser object
*
* @var ConfigfileParser
*/
public $parser;
/**
* Smarty object
*
* @var Smarty object
*/
public $smarty;
/**
* Smarty object
*
* @var Template object
*/
public $template;
/**
* Compiled config data sections and variables
*
* @var array
*/
public $config_data = [];
/**
* Initialize compiler
*
* @param Smarty $smarty global instance
*/
public function __construct(Smarty $smarty) {
$this->smarty = $smarty;
$this->config_data['sections'] = [];
$this->config_data['vars'] = [];
}
/**
* Method to compile Smarty config source.
*
* @param Template $template
*
* @return bool true if compiling succeeded, false if it failed
* @throws \Smarty\Exception
*/
public function compileTemplate(Template $template) {
$this->template = $template;
$this->template->getCompiled()->file_dependency[$this->template->getSource()->uid] =
[
$this->template->getSource()->getResourceName(),
$this->template->getSource()->getTimeStamp(),
$this->template->getSource()->type,
];
if ($this->smarty->debugging) {
$this->smarty->getDebug()->start_compile($this->template);
}
// init the lexer/parser to compile the config file
/* @var ConfigfileLexer $this->lex */
$this->lex = new ConfigfileLexer(
str_replace(
[
"\r\n",
"\r",
],
"\n",
$template->getSource()->getContent()
) . "\n",
$this
);
$this->parser = new ConfigfileParser($this->lex, $this);
if ($this->smarty->_parserdebug) {
$this->parser->PrintTrace();
}
// get tokens from lexer and parse them
while ($this->lex->yylex()) {
if ($this->smarty->_parserdebug) {
echo "Parsing {$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
$this->parser->doParse(0, 0);
if ($this->smarty->debugging) {
$this->smarty->getDebug()->end_compile($this->template);
}
// template header code
$template_header = sprintf(
"<?php /* Smarty version %s, created on %s\n compiled from '%s' */ ?>\n",
\Smarty\Smarty::SMARTY_VERSION,
date("Y-m-d H:i:s"),
str_replace('*/', '* /', $this->template->getSource()->getFullResourceName())
);
$code = '<?php $_smarty_tpl->parent->assignConfigVars(' .
var_export($this->config_data, true) . ', $_smarty_tpl->getValue("sections")); ?>';
return $template_header . $this->template->createCodeFrame($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 $args individual error message or null
*
* @throws CompilerException
*/
public function trigger_config_file_error($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->getSource()->getFullResourceName()}' 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(' , ', $expect);
}
throw new CompilerException($error_text);
}
}
|
