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| Редакция | Автор | № строки | Строка |
|---|---|---|---|
| 304 | alex-w | 1 | <?php |
| 2 | |||
| 3 | /** |
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| 4 | * Smarty Internal Plugin Config File Compiler |
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| 5 | * |
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| 6 | * This is the config file compiler class. It calls the lexer and parser to |
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| 7 | * perform the compiling. |
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| 8 | * |
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| 9 | * @package Smarty |
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| 10 | * @subpackage Config |
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| 11 | * @author Uwe Tews |
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| 12 | */ |
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| 13 | /** |
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| 14 | * Main config file compiler class |
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| 15 | */ |
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| 16 | class Smarty_Internal_Config_File_Compiler { |
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| 17 | public $compile_error= false; |
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| 18 | /** |
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| 19 | * Initialize compiler |
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| 20 | */ |
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| 21 | public function __construct($smarty) |
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| 22 | { |
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| 23 | $this->smarty = $smarty; |
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| 24 | // get required plugins |
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| 25 | $this->smarty->loadPlugin('Smarty_Internal_Configfilelexer'); |
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| 26 | $this->smarty->loadPlugin('Smarty_Internal_Configfileparser'); |
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| 27 | $this->config_data['sections'] = array(); |
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| 28 | $this->config_data['vars'] = array(); |
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| 29 | } |
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| 30 | |||
| 31 | /** |
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| 32 | * Methode to compile a Smarty template |
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| 33 | * |
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| 34 | * @param $template template object to compile |
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| 35 | * @return bool true if compiling succeeded, false if it failed |
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| 36 | */ |
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| 37 | public function compileSource($config) |
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| 38 | { |
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| 39 | /* here is where the compiling takes place. Smarty |
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| 40 | tags in the templates are replaces with PHP code, |
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| 41 | then written to compiled files. */ |
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| 42 | $this->config = $config; |
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| 43 | // get config file source |
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| 44 | $_content = $config->getConfigSource(); |
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| 45 | // on empty template just return |
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| 46 | if ($_content == '') { |
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| 47 | return true; |
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| 48 | } |
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| 49 | // init the lexer/parser to compile the config file |
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| 50 | $lex = new Smarty_Internal_Configfilelexer($_content, $this->smarty); |
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| 51 | $parser = new Smarty_Internal_Configfileparser($lex, $this); |
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| 52 | // $parser->PrintTrace(); |
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| 53 | // get tokens from lexer and parse them |
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| 54 | while ($lex->yylex()) { |
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| 55 | // echo "<br>Parsing {$parser->yyTokenName[$lex->token]} Token {$lex->value} Line {$lex->line} \n"; |
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| 56 | $parser->doParse($lex->token, $lex->value); |
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| 57 | } |
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| 58 | // finish parsing process |
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| 59 | $parser->doParse(0, 0); |
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| 60 | |||
| 61 | $config->compiled_config = serialize($this->config_data); |
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| 62 | if (!$this->compile_error) { |
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| 63 | return true; |
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| 64 | } else { |
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| 65 | // compilation error |
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| 66 | return false; |
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| 67 | } |
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| 68 | } |
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| 69 | /** |
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| 70 | * display compiler error messages without dying |
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| 71 | * |
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| 72 | * If parameter $args is empty it is a parser detected syntax error. |
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| 73 | * In this case the parser is called to obtain information about exspected tokens. |
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| 74 | * |
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| 75 | * If parameter $args contains a string this is used as error message |
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| 76 | * |
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| 77 | * @todo output exact position of parse error in source line |
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| 78 | * @param $args string individual error message or null |
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| 79 | */ |
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| 80 | public function trigger_config_file_error($args = null) |
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| 81 | { |
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| 82 | $this->lex = Smarty_Internal_Configfilelexer::instance(); |
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| 83 | $this->parser = Smarty_Internal_Configfileparser::instance(); |
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| 84 | // get template source line which has error |
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| 85 | $line = $this->lex->line; |
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| 86 | if (isset($args)) { |
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| 87 | // $line--; |
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| 88 | } |
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| 89 | $match = preg_split("/\n/", $this->lex->data); |
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| 90 | $error_text = 'Syntax Error in config file "' . $this->config->getConfigFilepath() . '" on line ' . $line . ' "'. $match[$line-1].'" '; |
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| 91 | if (isset($args)) { |
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| 92 | // individual error message |
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| 93 | $error_text .= $args; |
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| 94 | } else { |
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| 95 | // exspected token from parser |
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| 96 | foreach ($this->parser->yy_get_expected_tokens($this->parser->yymajor) as $token) { |
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| 97 | $exp_token = $this->parser->yyTokenName[$token]; |
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| 98 | if (isset($this->lex->smarty_token_names[$exp_token])) { |
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| 99 | // token type from lexer |
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| 100 | $expect[] = '"' . $this->lex->smarty_token_names[$exp_token] . '"'; |
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| 101 | } else { |
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| 102 | // otherwise internal token name |
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| 103 | $expect[] = $this->parser->yyTokenName[$token]; |
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| 104 | } |
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| 105 | } |
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| 106 | // output parser error message |
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| 107 | $error_text .= ' - Unexpected "' . $this->lex->value . '", expected one of: ' . implode(' , ', $expect); |
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| 108 | } |
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| 109 | throw new Exception($error_text); |
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| 110 | // set error flag |
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| 111 | $this->compile_error = true; |
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| 112 | } |
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| 113 | |||
| 114 | } |
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| 115 | |||
| 116 | ?> |