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Редакция | Автор | № строки | Строка |
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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 | ?> |