/php-pear-CodeGen-PECL-1.1.3/CodeGen_PECL-1.1.3/PECL/Tools/ProtoLexer.php

# · PHP · 304 lines · 267 code · 31 blank · 6 comment · 13 complexity · d5f11e4cebc8b30d5927cf9dba167b8c MD5 · raw file 

    

  1. <?php
    2. 

  2. class CodeGen_PECL_Tools_ProtoLexer
    3. 

  3. {
    4. 

  4.     private $data;
    5. 

  5.     public $token;
    6. 

  6.     public $value;
    7. 

  7.     private $line;
    8. 

  8.     private $count;
    9. 

  9. 

  10.     function __construct($data)
    11. 

  11.     {
    12. 

  12.         $this->data  = $data;
    13. 

  13.         $this->count = 0;
    14. 

  14.         $this->line  = 1;
    15. 

  15.     }
    16. 

  16. 

  17. 

  18.     private $_yy_state = 1;
    19. 

  19.     private $_yy_stack = array();
    20. 

  20. 

  21.     function yylex()
    22. 

  22.     {
    23. 

  23.         return $this->{'yylex' . $this->_yy_state}();
    24. 

  24.     }
    25. 

  25. 

  26.     function yypushstate($state)
    27. 

  27.     {
    28. 

  28.         array_push($this->_yy_stack, $this->_yy_state);
    29. 

  29.         $this->_yy_state = $state;
    30. 

  30.     }
    31. 

  31. 

  32.     function yypopstate()
    33. 

  33.     {
    34. 

  34.         $this->_yy_state = array_pop($this->_yy_stack);
    35. 

  35.     }
    36. 

  36. 

  37.     function yybegin($state)
    38. 

  38.     {
    39. 

  39.         $this->_yy_state = $state;
    40. 

  40.     }
    41. 

  41. 

  42. 

  43. 

  44. 

  45.     function yylex1()
    46. 

  46.     {
    47. 

  47.         $tokenMap = array (
    48. 

  48.               1 => 0,
    49. 

  49.               2 => 0,
    50. 

  50.               3 => 0,
    51. 

  51.               4 => 0,
    52. 

  52.               5 => 0,
    53. 

  53.               6 => 0,
    54. 

  54.               7 => 0,
    55. 

  55.               8 => 0,
    56. 

  56.               9 => 0,
    57. 

  57.               10 => 0,
    58. 

  58.               11 => 0,
    59. 

  59.               12 => 0,
    60. 

  60.               13 => 2,
    61. 

  61.               16 => 0,
    62. 

  62.               17 => 0,
    63. 

  63.             );
    64. 

  64.         if ($this->count >= strlen($this->data)) {
    65. 

  65.             return false; // end of input
    66. 

  66.         }
    67. 

  67.         $yy_global_pattern = "/^([ \t\n]+)|^(\\()|^(\\))|^(\\[)|^(\\])|^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)/";
    68. 

  68. 

  69.         do {
    70. 

  70.             if (preg_match($yy_global_pattern, substr($this->data, $this->count), $yymatches)) {
    71. 

  71.                 $yysubmatches = $yymatches;
    72. 

  72.                 $yymatches = array_filter($yymatches, 'strlen'); // remove empty sub-patterns
    73. 

  73.                 if (!count($yymatches)) {
    74. 

  74.                     throw new Exception('Error: lexing failed because a rule matched' .
    75. 

  75.                         'an empty string.  Input "' . substr($this->data,
    76. 

  76.                         $this->count, 5) . '... state 1');
    77. 

  77.                 }
    78. 

  78.                 next($yymatches); // skip global match
    79. 

  79.                 $this->token = key($yymatches); // token number
    80. 

  80.                 if ($tokenMap[$this->token]) {
    81. 

  81.                     // extract sub-patterns for passing to lex function
    82. 

  82.                     $yysubmatches = array_slice($yysubmatches, $this->token + 1,
    83. 

  83.                         $tokenMap[$this->token]);
    84. 

  84.                 } else {
    85. 

  85.                     $yysubmatches = array();
    86. 

  86.                 }
    87. 

  87.                 $this->value = current($yymatches); // token value
    88. 

  88.                 $r = $this->{'yy_r1_' . $this->token}($yysubmatches);
    89. 

  89.                 if ($r === null) {
    90. 

  90.                     $this->count += strlen($this->value);
    91. 

  91.                     $this->line += substr_count($this->value, "\n");
    92. 

  92.                     // accept this token
    93. 

  93.                     return true;
    94. 

  94.                 } elseif ($r === true) {
    95. 

  95.                     // we have changed state
    96. 

  96.                     // process this token in the new state
    97. 

  97.                     return $this->yylex();
    98. 

  98.                 } elseif ($r === false) {
    99. 

  99.                     $this->count += strlen($this->value);
    100. 

  100.                     $this->line += substr_count($this->value, "\n");
    101. 

  101.                     if ($this->count >= strlen($this->data)) {
    102. 

  102.                         return false; // end of input
    103. 

  103.                     }
    104. 

  104.                     // skip this token
    105. 

  105.                     continue;
    106. 

  106.                 } else {                    $yy_yymore_patterns = array(
    107. 

  107.         1 => array(0, "^(\\()|^(\\))|^(\\[)|^(\\])|^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    108. 

  108.         2 => array(0, "^(\\))|^(\\[)|^(\\])|^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    109. 

  109.         3 => array(0, "^(\\[)|^(\\])|^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    110. 

  110.         4 => array(0, "^(\\])|^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    111. 

  111.         5 => array(0, "^(=)|^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    112. 

  112.         6 => array(0, "^(,)|^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    113. 

  113.         7 => array(0, "^(;)|^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    114. 

  114.         8 => array(0, "^(\\.\\.\\.)|^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    115. 

  115.         9 => array(0, "^([&@])|^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    116. 

  116.         10 => array(0, "^([_a-zA-Z][_a-zA-Z0-9]*)|^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    117. 

  117.         11 => array(0, "^(\"[^\"]*\"|'[^']*')|^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    118. 

  118.         12 => array(0, "^([0-9]*(\\.[0-9]+)?([eE][+-]?[0-9]+)?)|^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    119. 

  119.         13 => array(2, "^([+-]?[0-9]+)|^(0x[0-9a-fA-F]+)"),
    120. 

  120.         16 => array(2, "^(0x[0-9a-fA-F]+)"),
    121. 

  121.         17 => array(2, ""),
    122. 

  122.     );
    123. 

  123. 

  124.                     // yymore is needed
    125. 

  125.                     do {
    126. 

  126.                         if (!strlen($yy_yymore_patterns[$this->token][1])) {
    127. 

  127.                             throw new Exception('cannot do yymore for the last token');
    128. 

  128.                         }
    129. 

  129.                         $yysubmatches = array();
    130. 

  130.                         if (preg_match('/' . $yy_yymore_patterns[$this->token][1] . '/',
    131. 

  131.                               substr($this->data, $this->count), $yymatches)) {
    132. 

  132.                             $yysubmatches = $yymatches;
    133. 

  133.                             $yymatches = array_filter($yymatches, 'strlen'); // remove empty sub-patterns
    134. 

  134.                             next($yymatches); // skip global match
    135. 

  135.                             $this->token += key($yymatches) + $yy_yymore_patterns[$this->token][0]; // token number
    136. 

  136.                             $this->value = current($yymatches); // token value
    137. 

  137.                             $this->line = substr_count($this->value, "\n");
    138. 

  138.                             if ($tokenMap[$this->token]) {
    139. 

  139.                                 // extract sub-patterns for passing to lex function
    140. 

  140.                                 $yysubmatches = array_slice($yysubmatches, $this->token + 1,
    141. 

  141.                                     $tokenMap[$this->token]);
    142. 

  142.                             } else {
    143. 

  143.                                 $yysubmatches = array();
    144. 

  144.                             }
    145. 

  145.                         }
    146. 

  146.                     	$r = $this->{'yy_r1_' . $this->token}($yysubmatches);
    147. 

  147.                     } while ($r !== null && !is_bool($r));
    148. 

  148. 			        if ($r === true) {
    149. 

  149. 			            // we have changed state
    150. 

  150. 			            // process this token in the new state
    151. 

  151. 			            return $this->yylex();
    152. 

  152.                     } elseif ($r === false) {
    153. 

  153.                         $this->count += strlen($this->value);
    154. 

  154.                         $this->line += substr_count($this->value, "\n");
    155. 

  155.                         if ($this->count >= strlen($this->data)) {
    156. 

  156.                             return false; // end of input
    157. 

  157.                         }
    158. 

  158.                         // skip this token
    159. 

  159.                         continue;
    160. 

  160. 			        } else {
    161. 

  161. 	                    // accept
    162. 

  162. 	                    $this->count += strlen($this->value);
    163. 

  163. 	                    $this->line += substr_count($this->value, "\n");
    164. 

  164. 	                    return true;
    165. 

  165. 			        }
    166. 

  166.                 }
    167. 

  167.             } else {
    168. 

  168.                 throw new Exception('Unexpected input at line' . $this->line .
    169. 

  169.                     ': ' . $this->data[$this->count]);
    170. 

  170.             }
    171. 

  171.             break;
    172. 

  172.         } while (true);
    173. 

  173. 

  174.     } // end function
    175. 

  175. 

  176.     function yy_r1_1($yy_subpatterns)
    177. 

  177.     {
    178. 

  178. 

  179. 	return false;
    180. 

  180.     }
    181. 

  181.     function yy_r1_2($yy_subpatterns)
    182. 

  182.     {
    183. 

  183. 

  184. 	$this->token = CodeGen_PECL_Tools_ProtoParser::PAR_OPEN;
    185. 

  185.     }
    186. 

  186.     function yy_r1_3($yy_subpatterns)
    187. 

  187.     {
    188. 

  188. 

  189. 	$this->token = CodeGen_PECL_Tools_ProtoParser::PAR_CLOSE;
    190. 

  190.     }
    191. 

  191.     function yy_r1_4($yy_subpatterns)
    192. 

  192.     {
    193. 

  193. 

  194. 	$this->token = CodeGen_PECL_Tools_ProtoParser::SQUARE_OPEN;
    195. 

  195.     }
    196. 

  196.     function yy_r1_5($yy_subpatterns)
    197. 

  197.     {
    198. 

  198. 

  199. 	$this->token = CodeGen_PECL_Tools_ProtoParser::SQUARE_CLOSE;
    200. 

  200.     }
    201. 

  201.     function yy_r1_6($yy_subpatterns)
    202. 

  202.     {
    203. 

  203. 

  204. 	$this->token = CodeGen_PECL_Tools_ProtoParser::EQ;
    205. 

  205.     }
    206. 

  206.     function yy_r1_7($yy_subpatterns)
    207. 

  207.     {
    208. 

  208. 

  209. 	$this->token = CodeGen_PECL_Tools_ProtoParser::COMMA;
    210. 

  210.     }
    211. 

  211.     function yy_r1_8($yy_subpatterns)
    212. 

  212.     {
    213. 

  213. 

  214. 	$this->token = CodeGen_PECL_Tools_ProtoParser::SEMICOLON;
    215. 

  215.     }
    216. 

  216.     function yy_r1_9($yy_subpatterns)
    217. 

  217.     {
    218. 

  218. 

  219. 	$this->token = CodeGen_PECL_Tools_ProtoParser::ELLIPSE;
    220. 

  220.     }
    221. 

  221.     function yy_r1_10($yy_subpatterns)
    222. 

  222.     {
    223. 

  223. 

  224. 	$this->token = CodeGen_PECL_Tools_ProtoParser::AMPERSAND;
    225. 

  225.     }
    226. 

  226.     function yy_r1_11($yy_subpatterns)
    227. 

  227.     {
    228. 

  228. 

  229. 	switch ($this->value) {
    230. 

  230. 	case "void":
    231. 

  231. 		$this->token = CodeGen_PECL_Tools_ProtoParser::VOID;
    232. 

  232. 		break;
    233. 

  233. 	case "bool": 	
    234. 

  234.     case "boolean":
    235. 

  235. 	    $this->token = CodeGen_PECL_Tools_ProtoParser::BOOL;
    236. 

  236. 		break;
    237. 

  237. 	case "int": 
    238. 

  238. 	case "integer":
    239. 

  239. 	case "long":
    240. 

  240. 		$this->token = CodeGen_PECL_Tools_ProtoParser::INT;
    241. 

  241. 		break;
    242. 

  242. 	case "float":
    243. 

  243. 	case "double":
    244. 

  244. 		$this->token = CodeGen_PECL_Tools_ProtoParser::FLOAT;
    245. 

  245. 		break;
    246. 

  246. 	case "string": 
    247. 

  247. 		$this->token = CodeGen_PECL_Tools_ProtoParser::STRING;
    248. 

  248. 		break;
    249. 

  249. 	case "array": 
    250. 

  250. 		$this->token = CodeGen_PECL_Tools_ProtoParser::ARRAY_;
    251. 

  251. 		break;
    252. 

  252. 	case "class":
    253. 

  253. 	case "object":
    254. 

  254. 		$this->token = CodeGen_PECL_Tools_ProtoParser::CLASS_;
    255. 

  255. 		break;
    256. 

  256. 	case "resource": 
    257. 

  257. 		$this->token = CodeGen_PECL_Tools_ProtoParser::RESOURCE;
    258. 

  258. 		break;
    259. 

  259. 	case "mixed": 
    260. 

  260. 		$this->token = CodeGen_PECL_Tools_ProtoParser::MIXED;
    261. 

  261. 		break;
    262. 

  262. 	case "callback": 
    263. 

  263. 		$this->token = CodeGen_PECL_Tools_ProtoParser::CALLBACK;
    264. 

  264. 		break;
    265. 

  265. 	case "stream": 
    266. 

  266. 		$this->token = CodeGen_PECL_Tools_ProtoParser::STREAM;
    267. 

  267. 		break;
    268. 

  268. 	case "true": 
    269. 

  269. 		$this->token = CodeGen_PECL_Tools_ProtoParser::TRUE_;
    270. 

  270. 		break;
    271. 

  271. 	case "false":
    272. 

  272. 		$this->token = CodeGen_PECL_Tools_ProtoParser::FALSE_;
    273. 

  273. 		break;
    274. 

  274. 	case "null": 
    275. 

  275. 		$this->token = CodeGen_PECL_Tools_ProtoParser::NULL_;
    276. 

  276. 		break;
    277. 

  277. 	default:
    278. 

  278. 		$this->token = CodeGen_PECL_Tools_ProtoParser::NAME;
    279. 

  279. 		break;
    280. 

  280. 	}
    281. 

  281.     }
    282. 

  282.     function yy_r1_12($yy_subpatterns)
    283. 

  283.     {
    284. 

  284. 

  285. 	$this->token = CodeGen_PECL_Tools_ProtoParser::STRVAL;
    286. 

  286.     }
    287. 

  287.     function yy_r1_13($yy_subpatterns)
    288. 

  288.     {
    289. 

  289. 

  290. 	$this->token = CodeGen_PECL_Tools_ProtoParser::NUMVAL;
    291. 

  291.     }
    292. 

  292.     function yy_r1_16($yy_subpatterns)
    293. 

  293.     {
    294. 

  294. 

  295. 	$this->token = CodeGen_PECL_Tools_ProtoParser::NUMVAL;
    296. 

  296.     }
    297. 

  297.     function yy_r1_17($yy_subpatterns)
    298. 

  298.     {
    299. 

  299. 

  300. 	$this->token = CodeGen_PECL_Tools_ProtoParser::NUMVAL;
    301. 

  301.     }
    302. 

  302. 

  303. }
    304.