grammar.c 47 KB

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  1. #include "__grammar.h"
  2. ParserMessage *makeParserMessage(char *file_dir) {
  3. ParserMessage *tmp = memCalloc(1, sizeof(ParserMessage));
  4. tmp->file = file_dir;
  5. tmp->tm = makeTokenMessage(file_dir);
  6. tmp->status = success;
  7. tmp->status_message = NULL;
  8. return tmp;
  9. }
  10. void freeParserMessage(ParserMessage *pm, bool self) {
  11. freeBase(pm, return_);
  12. freeTokenMessage(pm->tm, true, true);
  13. memFree(pm->status_message);
  14. if (self)
  15. memFree(pm);
  16. return_:
  17. return;
  18. }
  19. /**
  20. * 命令表匹配
  21. * parserCommandList :
  22. * | MATHER_EOF
  23. * | MATHER_ENTER
  24. * | MATHER_SEMICOLON
  25. * | parserCommand MATHER_ENTER
  26. * | parserCommand MATHER_SEMICOLON
  27. * | parserCommand MATHER_EOF
  28. */
  29. void parserCommandList(PASERSSIGNATURE, bool global, Statement *st) {
  30. int token_type;
  31. char *command_message = global ? "ERROR from command list(get parserCommand)" : NULL;
  32. int save_enter = pm->tm->file->filter_data.enter;
  33. pm->tm->file->filter_data.enter = 0;
  34. while (true){
  35. token_type = readBackToken(pm);
  36. if (token_type == MATHER_EOF){
  37. delToken(pm);
  38. goto return_;
  39. }
  40. else if (token_type == MATHER_ENTER || token_type == MATHER_SEMICOLON){
  41. delToken(pm);
  42. continue;
  43. }
  44. else{
  45. Token *command_token = NULL;
  46. int stop;
  47. if (!callChildToken(CALLPASERSSIGNATURE, parserCommand, COMMAND, &command_token, command_message, command_list_error))
  48. goto return_;
  49. stop = readBackToken(pm);
  50. if (stop == MATHER_ENTER || stop == MATHER_SEMICOLON)
  51. delToken(pm);
  52. else if(stop != MATHER_EOF){
  53. if (global) {
  54. fprintf(stderr, "stop = %d\n", stop);
  55. Token *tk = popNewToken(pm->tm);
  56. freeToken(tk, true);
  57. syntaxError(pm, command_list_error, command_token->line, 1, "ERROR from parserCommand list(get stop)");
  58. freeToken(command_token, true);
  59. }
  60. else{
  61. connectStatement(st, command_token->data.st);
  62. freeToken(command_token, false);
  63. }
  64. goto return_;
  65. }
  66. connectStatement(st, command_token->data.st);
  67. freeToken(command_token, false);
  68. }
  69. }
  70. return_:
  71. pm->tm->file->filter_data.enter = save_enter;
  72. return;
  73. }
  74. /**
  75. * 命令匹配
  76. * parserCommand:
  77. * | MATHER_DEF parserDef
  78. * | MATHER_IF parserIf
  79. * | MATHER_WHILE parserWhile
  80. * | MATHER_TRY parserTry
  81. * | MATHER_BREAK parserControl
  82. * | MATHER_CONTINUE parserControl
  83. * | MATHER_RESTART parserControl
  84. * | MATHER_REGO parserControl
  85. * | MATHER_RETURN parserControl
  86. * | MATHER_RAISE parserControl
  87. * | parserOperation
  88. */
  89. void parserCommand(PASERSSIGNATURE){
  90. int token_type, status;
  91. Statement *st = NULL;
  92. token_type = readBackToken(pm);
  93. switch (token_type) {
  94. case MATHER_AT :
  95. status = commandCallBack_(CALLPASERSSIGNATURE, parserDecoration, DECORATION, &st, "Command: call decoration\n");
  96. break;
  97. case MATHER_NONLOCAL :
  98. case MATHER_GLOBAL :
  99. case MATHER_DEFAULT :
  100. status = commandCallBack_(CALLPASERSSIGNATURE, parserVarControl, VARCONTROL, &st, "Command: call var control\n"); // TODO-szh 取消message
  101. break;
  102. case MATHER_CLASS :
  103. case MATHER_DEF :
  104. status = commandCallBack_(CALLPASERSSIGNATURE, parserDef, FUNCTION, &st, "Command: call def/class\n");
  105. break;
  106. case MATHER_GOTO :
  107. status = commandCallBack_(CALLPASERSSIGNATURE, parserGoto, GOTO, &st, "Command: call goto\n");
  108. break;
  109. case MATHER_LABEL :
  110. status = commandCallBack_(CALLPASERSSIGNATURE, parserLabel, LABEL, &st, "Command: call label\n");
  111. break;
  112. case MATHER_DO :
  113. status = commandCallBack_(CALLPASERSSIGNATURE, parserDo, DO_BRANCH, &st, "Command: call do\n");
  114. break;
  115. case MATHER_WITH :
  116. status = commandCallBack_(CALLPASERSSIGNATURE, parserWith, WITH_BRANCH, &st, "Command: call with\n");
  117. break;
  118. case MATHER_IF :
  119. status = commandCallBack_(CALLPASERSSIGNATURE, parserIf, IF_BRANCH, &st, "Command: call if\n");
  120. break;
  121. case MATHER_WHILE :
  122. status = commandCallBack_(CALLPASERSSIGNATURE, parserWhile, WHILE_BRANCH, &st, "Command: call while\n");
  123. break;
  124. case MATHER_TRY :
  125. status = commandCallBack_(CALLPASERSSIGNATURE, parserTry, TRY_BRANCH, &st, "Command: call try\n");
  126. break;
  127. case MATHER_BREAK :
  128. status = commandCallControl_(CALLPASERSSIGNATURE, makeBreakStatement, BREAK, &st,
  129. "Command: call break\n", false, NULL);
  130. break;
  131. case MATHER_CONTINUE :
  132. status = commandCallControl_(CALLPASERSSIGNATURE, makeContinueStatement, CONTINUE, &st,
  133. "Command: call continue\n", false, NULL);
  134. break;
  135. case MATHER_RESTART :
  136. status = commandCallControl_(CALLPASERSSIGNATURE, makeRestartStatement, RESTART, &st,
  137. "Command: call restart\n", false, NULL);
  138. break;
  139. case MATHER_REGO :
  140. status = commandCallControl_(CALLPASERSSIGNATURE, makeRegoStatement, REGO, &st,
  141. "Command: call rego\n", false, NULL);
  142. break;
  143. case MATHER_RETURN :
  144. status = commandCallControl_(CALLPASERSSIGNATURE, makeReturnStatement, RETURN, &st,
  145. "Command: call return\n", false, NULL);
  146. break;
  147. case MATHER_YIELD :
  148. status = commandCallControl_(CALLPASERSSIGNATURE, makeYieldStatement, YIELD, &st,
  149. "Command: call yield\n", false, NULL);
  150. break;
  151. case MATHER_RAISE :
  152. status = commandCallControl_(CALLPASERSSIGNATURE, makeRaiseStatement, RAISE, &st,
  153. "Command: call raise\n", false, NULL);
  154. case MATHER_ASSERT :
  155. status = commandCallControl_(CALLPASERSSIGNATURE, makeAssertStatement, ASSERT, &st,
  156. "Command: call assert\n", true,
  157. "parserAssert: Don't get conditions after assert");
  158. break;
  159. case MATHER_INCLUDE :
  160. status = commandCallControl_(CALLPASERSSIGNATURE, makeIncludeStatement, INCLUDE, &st,
  161. "Command: call include\n", true,
  162. "parserInclude: Don't get file after include");
  163. break;
  164. case MATHER_FROM :
  165. case MATHER_IMPORT :
  166. status = commandCallBack_(CALLPASERSSIGNATURE, parserImport, IMPORT, &st, "Command: call import\n");
  167. break;
  168. case MATHER_STRING:
  169. case MATHER_NUMBER:
  170. case MATHER_VAR:
  171. case MATHER_SVAR:
  172. case MATHER_LC:
  173. case MATHER_LB:
  174. case MATHER_LP:
  175. case MATHER_SUB:
  176. case MATHER_PROTECT:
  177. case MATHER_PRIVATE:
  178. case MATHER_PUBLIC:
  179. status = commandCallBack_(CALLPASERSSIGNATURE, parserOperation, OPERATION, &st,
  180. "Command: call operation\n");
  181. break;
  182. default:
  183. status = false;
  184. break;
  185. }
  186. if (!status)
  187. goto return_;
  188. addStatementToken(COMMAND, st, pm);
  189. return_: return;
  190. }
  191. void parserDecoration(PASERSSIGNATURE){
  192. Statement *st = NULL;
  193. DecorationStatement *ds = NULL;
  194. int tmp;
  195. long int line = 0;
  196. while ((tmp = readBackToken(pm)) == MATHER_AT || tmp == MATHER_ENTER){
  197. Statement *dst = NULL;
  198. line = delToken(pm);
  199. if (tmp == MATHER_ENTER)
  200. continue;
  201. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &dst, "Don't get a decoration operation"))
  202. goto error_;
  203. ds = connectDecorationStatement(dst, ds);
  204. }
  205. if (tmp!= MATHER_CLASS && tmp != MATHER_DEF) {
  206. syntaxError(pm, syntax_error, line, 1, "Don't get a decoration object");
  207. goto error_;
  208. }
  209. if (!callChildStatement(CALLPASERSSIGNATURE, parserDef, FUNCTION, &st, "Don't get a decoration object"))
  210. goto error_;
  211. if (tmp == MATHER_CLASS)
  212. st->u.set_class.decoration = ds;
  213. else
  214. st->u.set_function.decoration = ds;
  215. addStatementToken(DECORATION, st, pm);
  216. return;
  217. error_:
  218. freeDecorationStatement(ds);
  219. return;
  220. }
  221. /**
  222. * label语句匹配
  223. * parserLabel:
  224. * | MATHER_LABEL MATHER_COLON MATHER_STRING(MATHER_VAR) stop_token [缺省所有参数]
  225. * | MATHER_LABEL MATHER_COLON MATHER_STRING(MATHER_VAR) MATHER_AS parserOperation stop_token [缺省command参数]
  226. * | MATHER_LABEL MATHER_COLON MATHER_STRING(MATHER_VAR) MATHER_COLON parserOperation stop_token
  227. * | MATHER_LABEL MATHER_COLON MATHER_STRING(MATHER_VAR) MATHER_AS parserOperation MATHER_COLON parserOperation [缺省var参数]
  228. * @param pm
  229. * @param inter
  230. */
  231. void parserLabel(PASERSSIGNATURE){
  232. Statement *st = NULL;
  233. Statement *var = NULL;
  234. Statement *command = NULL;
  235. Token *label_tk = NULL;
  236. int tmp;
  237. char *label = NULL;
  238. long int line = delToken(pm);
  239. if (!checkToken(pm, MATHER_COLON)){
  240. syntaxError(pm, syntax_error, line, 1, "Don't get : afther label");
  241. goto error_;
  242. }
  243. switch (readBackToken(pm)) {
  244. case MATHER_STRING:
  245. case MATHER_VAR:
  246. label_tk = popNewToken(pm->tm);
  247. label = memStrcpy(label_tk->data.str);
  248. freeToken(label_tk, false);
  249. break;
  250. default:
  251. syntaxError(pm, syntax_error, line, 1, "Don't get a label name");
  252. goto error_;
  253. }
  254. if ((tmp = readBackToken(pm)) == MATHER_ENTER || tmp == MATHER_SEMICOLON || tmp == MATHER_EOF) // 匹配到stop_token则label后参数缺省
  255. goto make;
  256. if (tmp != MATHER_COLON) { // 匹配到 : 则label的times参数缺省
  257. if (!checkToken(pm, MATHER_AS)) {
  258. syntaxError(pm, syntax_error, line, 1, "Don't get as afther goto label");
  259. goto error_;
  260. } else if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &var, "Don't get a goto var"))
  261. goto error_;
  262. }
  263. if ((tmp = readBackToken(pm)) == MATHER_ENTER || tmp == MATHER_SEMICOLON || tmp == MATHER_EOF) // 如匹配到stop_token则label的command参数缺省
  264. goto make;
  265. else if (!checkToken(pm, MATHER_COLON)){
  266. syntaxError(pm, syntax_error, line, 1, "Don't get : afther goto var");
  267. goto error_;
  268. }
  269. else if (!callChildStatement(CALLPASERSSIGNATURE, parserCommand, COMMAND, &command, "Don't get a label command"))
  270. goto error_;
  271. make:
  272. st = makeLabelStatement(var, command, label, line, pm->file);
  273. addStatementToken(LABEL, st, pm);
  274. memFree(label);
  275. return;
  276. error_:
  277. freeStatement(var);
  278. freeStatement(command);
  279. memFree(label);
  280. return;
  281. }
  282. /**
  283. * goto语句匹配
  284. * parserGoto:
  285. * | MATHER_GOTO MATHER_AT parserOperation stop_token [缺省所有参数]
  286. * | MATHER_GOTO MATHER_AT parserOperation MATHER_COLON parserOperation stop_token [缺省return_参数]
  287. * | MATHER_GOTO MATHER_AT parserOperation MATHER_COLON parserOperation MATHER_COLON parserOperation
  288. * | MATHER_GOTO MATHER_AT parserOperation MATHER_COLON MATHER_COLON parserOperation [缺省times参数]
  289. */
  290. void parserGoto(PASERSSIGNATURE){
  291. Statement *st = NULL;
  292. Statement *label = NULL;
  293. Statement *times = NULL;
  294. Statement *return_ = NULL;
  295. int tmp;
  296. long int line = delToken(pm);
  297. if (!checkToken(pm, MATHER_AT)){
  298. syntaxError(pm, syntax_error, line, 1, "Don't get @ afther goto");
  299. goto error_;
  300. }
  301. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &label, "Don't get a goto times"))
  302. goto error_;
  303. if ((tmp = readBackToken(pm)) == MATHER_ENTER || tmp == MATHER_SEMICOLON || tmp == MATHER_EOF) // 如匹配到stop_token则goto后面参数缺省
  304. goto make;
  305. else if (!checkToken(pm, MATHER_COLON)){
  306. syntaxError(pm, syntax_error, line, 1, "Don't get : afther goto label");
  307. goto error_;
  308. }
  309. else if (!checkToken(pm, MATHER_COLON) && !callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &times, "Don't get a goto times"))
  310. goto error_; // 若再次匹配到 MATHER_COLON 则表示goto的times参数缺省
  311. if ((tmp = readBackToken(pm)) == MATHER_ENTER || tmp == MATHER_SEMICOLON || tmp == MATHER_EOF) // 如匹配到stop_token则goto的return_参数缺省
  312. goto make;
  313. else if (times != NULL && !checkToken(pm, MATHER_COLON)){
  314. syntaxError(pm, syntax_error, line, 1, "Don't get : afther goto times");
  315. goto error_;
  316. }
  317. else if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &return_, "Don't get a goto return"))
  318. goto error_;
  319. make:
  320. st = makeGotoStatement(return_, times, label, line, pm->file);
  321. addStatementToken(GOTO, st, pm);
  322. return;
  323. error_:
  324. freeStatement(label);
  325. freeStatement(times);
  326. freeStatement(return_);
  327. return;
  328. }
  329. /**
  330. * import 匹配
  331. * parserImport
  332. * | parserControl AS parserOperation
  333. * @param callBack statement生成函数
  334. * @param type 输出token的类型
  335. * @param must_operation 必须匹配 operation
  336. */
  337. void parserImport(PASERSSIGNATURE) {
  338. Statement *opt = NULL;
  339. Statement *st = NULL;
  340. int token_type = readBackToken(pm);
  341. long int line = delToken(pm);
  342. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &opt, "Don't get a import file"))
  343. goto return_;
  344. if (token_type == MATHER_IMPORT) {
  345. Statement *as = NULL;
  346. if (checkToken(pm, MATHER_AS) && !callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &as, "Don't get a as after import")) {
  347. freeStatement(opt);
  348. goto return_;
  349. }
  350. st = makeImportStatement(opt, as);
  351. }
  352. else{
  353. Parameter *pt = NULL;
  354. Parameter *as = NULL;
  355. if (!checkToken(pm, MATHER_IMPORT)) {
  356. syntaxError(pm, syntax_error, opt->line, 1, "Don't get a as after import");
  357. freeStatement(opt);
  358. goto return_;
  359. }
  360. if (checkToken(pm, MATHER_MUL)) // 导入所有
  361. goto mul_;
  362. if (!parserParameter(CALLPASERSSIGNATURE, &pt, false, false, false, false, MATHER_COMMA, MATHER_ASSIGNMENT) || pt == NULL) {
  363. syntaxError(pm, syntax_error, line, 1, "Don't get any value to import");
  364. freeStatement(opt);
  365. goto return_;
  366. }
  367. if (checkToken(pm, MATHER_AS) && (!parserParameter(CALLPASERSSIGNATURE, &as, false, true, false, false, MATHER_COMMA, MATHER_ASSIGNMENT) || as == NULL)) {
  368. freeParameter(pt, true);
  369. syntaxError(pm, syntax_error, opt->line, 1, "Don't get any value after import");
  370. freeStatement(opt);
  371. goto return_;
  372. }
  373. if (as == NULL && !checkFormal(pt)){
  374. freeParameter(pt, true);
  375. syntaxError(pm, syntax_error, opt->line, 1, "Don't get success value to import");
  376. freeStatement(opt);
  377. goto return_;
  378. }
  379. mul_:
  380. st = makeFromImportStatement(opt, as, pt);
  381. }
  382. addStatementToken(IMPORT, st, pm);
  383. return_:
  384. return;
  385. }
  386. /**
  387. * 控制语句匹配
  388. * parserControl
  389. * | (control token) NULL
  390. * | (control token) parserOperation
  391. * @param callBack statement生成函数
  392. * @param type 输出token的类型
  393. * @param must_operation 必须匹配 operation
  394. */
  395. void parserVarControl(PASERSSIGNATURE) {
  396. Parameter *var = NULL;
  397. Statement *st = NULL;
  398. Token *tmp = NULL;
  399. int token_type = readBackToken(pm);
  400. long int line = delToken(pm);
  401. if (!parserParameter(CALLPASERSSIGNATURE, &var, false, true, true, true, MATHER_COMMA, MATHER_ASSIGNMENT) || var == NULL) {
  402. syntaxError(pm, syntax_error, line, 1, "Don't get any var");
  403. goto return_;
  404. }
  405. st = makeDefaultVarStatement(var, line, pm->file, token_type == MATHER_DEFAULT ? default_ : token_type == MATHER_GLOBAL ? global_ : nonlocal_);
  406. addStatementToken(VARCONTROL, st, pm);
  407. return_:
  408. return;
  409. }
  410. /**
  411. * 控制语句匹配
  412. * parserControl
  413. * | (control token) NULL
  414. * | (control token) parserOperation
  415. * @param callBack statement生成函数
  416. * @param type 输出token的类型
  417. * @param must_operation 必须匹配 operation
  418. */
  419. void parserControl(PASERSSIGNATURE, MakeControlFunction callBack, int type, bool must_operation, char *message) {
  420. Statement *opt = NULL;
  421. Statement *st = NULL;
  422. Token *tmp = NULL;
  423. long int line = delToken(pm);
  424. parserOperation(CALLPASERSSIGNATURE);
  425. if (!call_success(pm) || readBackToken(pm) != OPERATION && must_operation){
  426. syntaxError(pm, syntax_error, line, 1, message);
  427. goto return_;
  428. }
  429. tmp = popNewToken(pm->tm);
  430. opt = tmp->data.st;
  431. freeToken(tmp, false);
  432. st = callBack(opt, line, pm->file);
  433. addStatementToken(type, st, pm);
  434. return_:
  435. return;
  436. }
  437. void parserDo(PASERSSIGNATURE){
  438. Statement *st = NULL;
  439. Statement *do_code = NULL;
  440. long int line = delToken(pm);
  441. if (readBackToken(pm) == MATHER_WHILE){ // do...while语句
  442. if (!callChildStatement(CALLPASERSSIGNATURE, parserWhile, WHILE_BRANCH, &st, "Don't get a while code"))
  443. goto error_;
  444. st->u.while_branch.type = do_while_;
  445. }
  446. else {
  447. if (!callParserCode(CALLPASERSSIGNATURE, &do_code, "Don't get a if...else code", line))
  448. goto error_;
  449. again:
  450. switch (readBackToken(pm)){
  451. case MATHER_IF: {
  452. StatementList *do_sl = NULL;
  453. if (!callChildStatement(CALLPASERSSIGNATURE, parserIf, IF_BRANCH, &st, "Don't get a if code after do"))
  454. goto error_;
  455. do_sl = makeStatementList(NULL, NULL, do_code, do_b);
  456. do_sl->next = st->u.if_branch.if_list;
  457. st->u.if_branch.if_list = do_sl;
  458. break;
  459. }
  460. case MATHER_WHILE:
  461. if (!callChildStatement(CALLPASERSSIGNATURE, parserWhile, WHILE_BRANCH, &st, "Don't get a if code after do"))
  462. goto error_;
  463. st->u.while_branch.first = do_code;
  464. break;
  465. case MATHER_DO: {
  466. long int tmp_line = delToken(pm);
  467. if (readBackToken(pm) != MATHER_WHILE){
  468. syntaxError(pm, syntax_error, tmp_line, 1, "Don't get while after do");
  469. goto error_;
  470. }
  471. if (!callChildStatement(CALLPASERSSIGNATURE, parserWhile, WHILE_BRANCH, &st, "Don't get a while code"))
  472. goto error_;
  473. st->u.while_branch.type = do_while_;
  474. st->u.while_branch.first = do_code;
  475. break;
  476. }
  477. case MATHER_ENTER:
  478. delToken(pm);
  479. goto again;
  480. default: {
  481. Token *tmp = popNewToken(pm->tm);
  482. syntaxError(pm, syntax_error, tmp->line, 1, "Get don't support branch after do");
  483. backToken_(pm, tmp);
  484. goto error_;
  485. }
  486. }
  487. }
  488. addStatementToken(DO_BRANCH, st, pm);
  489. return;
  490. error_:
  491. freeStatement(do_code);
  492. freeStatement(st);
  493. return;
  494. }
  495. void parserWith(PASERSSIGNATURE){
  496. Statement *st = NULL;
  497. Statement *code_tmp = NULL;
  498. Statement *var_tmp = NULL;
  499. Statement *condition_tmp = NULL;
  500. Statement *else_st = NULL;
  501. Statement *finally_st = NULL;
  502. StatementList *sl = NULL;
  503. long int line = 0;
  504. long int tmp_line;
  505. line = delToken(pm);
  506. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &condition_tmp, "Don't get a with operation"))
  507. goto error_;
  508. if (!callParserAs(CALLPASERSSIGNATURE, &var_tmp, "Don't get a with var"))
  509. goto error_;
  510. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a with code", line))
  511. goto error_;
  512. sl = makeConnectStatementList(sl, condition_tmp, var_tmp, code_tmp, if_b);
  513. condition_tmp = NULL;
  514. var_tmp = NULL;
  515. code_tmp = NULL;
  516. for (int tk=readBackToken(pm); tk == MATHER_ENTER; tk = readBackToken(pm))
  517. delToken(pm);
  518. if (readBackToken(pm) == MATHER_ELSE) {
  519. tmp_line = delToken(pm);
  520. if (!callParserCode(CALLPASERSSIGNATURE, &else_st, "Don't get a with...else code", tmp_line))
  521. goto error_;
  522. }
  523. for (int tk=readBackToken(pm); tk == MATHER_ENTER; tk = readBackToken(pm))
  524. delToken(pm);
  525. if (readBackToken(pm) == MATHER_FINALLY) {
  526. tmp_line = delToken(pm);
  527. if (!callParserCode(CALLPASERSSIGNATURE, &finally_st, "Don't get a wilt...finally code", tmp_line))
  528. goto error_;
  529. }
  530. addLexToken(pm, MATHER_ENTER);
  531. st = makeWithStatement(line, pm->file);
  532. st->u.with_branch.with_list = sl;
  533. st->u.with_branch.else_list = else_st;
  534. st->u.with_branch.finally = finally_st;
  535. addStatementToken(WITH_BRANCH, st, pm);
  536. return;
  537. error_:
  538. freeStatement(condition_tmp);
  539. freeStatement(var_tmp);
  540. freeStatement(else_st);
  541. freeStatement(finally_st);
  542. freeStatementList(sl);
  543. return;
  544. }
  545. /**
  546. * 条件分支匹配
  547. * parserIf:
  548. * | MATHER_IF parserOperation (MATHER_AS parserOperation) callParserCode
  549. * | parserIf MATHER_ELIF parserOperation (MATHER_AS parserOperation) callParserCode
  550. * | parserIf MATHER_DO callParserCode [不允许两次连用]
  551. * | parserIf MATHER_ELSE callParserCode [不允许再出现if和elif以及do] [只出现一次] [4]
  552. * | parserIf MATHER_FINALLY callParserCode [结尾]
  553. * 注释:会自动过滤 <ENTER> , 可以使用 <SEMICOLON> 作为结束表示
  554. * 注释:自动添加 <ENTER> 结尾符号
  555. * 注释:(MATHER_AS parserOperation) 表示允许出现或者不出现, 若出现则 MATHER_AS parserOperation 必须一起出现
  556. * 特别注意:自进入模式[4]后,匹配顺序自上而下不可逆
  557. * @param pm
  558. * @param inter
  559. */
  560. void parserIf(PASERSSIGNATURE){
  561. Statement *st = NULL;
  562. Statement *else_st = NULL;
  563. Statement *finally_st = NULL;
  564. StatementList *sl = NULL;
  565. bool have_if = false;
  566. long int line = 0;
  567. again:
  568. switch (readBackToken(pm)) {
  569. case MATHER_IF:
  570. if (have_if)
  571. goto default_;
  572. else
  573. have_if = true;
  574. line = delToken(pm);
  575. goto not_del;
  576. case MATHER_ELIF: {
  577. Statement *code_tmp = NULL, *var_tmp = NULL, *condition_tmp = NULL;
  578. long int tmp_line = delToken(pm);
  579. if (else_st != NULL) {
  580. syntaxError(pm, syntax_error, tmp_line, 1, "get elif after else");
  581. goto error_;
  582. }
  583. not_del:
  584. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &condition_tmp, "Don't get a if condition"))
  585. goto error_;
  586. if (!callParserAs(CALLPASERSSIGNATURE, &var_tmp, "Don't get a while var")) {
  587. freeStatement(condition_tmp);
  588. goto error_;
  589. }
  590. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a if code", tmp_line)) {
  591. freeStatement(condition_tmp);
  592. freeStatement(var_tmp);
  593. goto error_;
  594. }
  595. sl = makeConnectStatementList(sl, condition_tmp, var_tmp, code_tmp, if_b);
  596. goto again;
  597. }
  598. case MATHER_DO: {
  599. if (else_st != NULL)
  600. goto default_;
  601. Statement *code_tmp = NULL;
  602. long int tmp_line = delToken(pm);
  603. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a if...do code", tmp_line))
  604. goto error_;
  605. sl = makeConnectStatementList(sl, NULL, NULL, code_tmp, do_b);
  606. goto again;
  607. }
  608. case MATHER_ELSE: {
  609. long int tmp_line = delToken(pm);
  610. if (else_st != NULL) {
  611. syntaxError(pm, syntax_error, tmp_line, 1, "get else after else");
  612. goto error_;
  613. }
  614. if (!callParserCode(CALLPASERSSIGNATURE, &else_st, "Don't get a if...else code", tmp_line))
  615. goto error_;
  616. goto again;
  617. }
  618. case MATHER_FINALLY: {
  619. long int tmp_line = delToken(pm);
  620. if (!callParserCode(CALLPASERSSIGNATURE, &finally_st, "Don't get a if...finally code", tmp_line))
  621. goto error_;
  622. break;
  623. }
  624. case MATHER_ENTER:
  625. delToken(pm);
  626. goto again;
  627. case MATHER_SEMICOLON:
  628. break;
  629. default:{
  630. default_:
  631. addLexToken(pm, MATHER_ENTER);
  632. break;
  633. }
  634. }
  635. st = makeIfStatement(line, pm->file);
  636. st->u.if_branch.if_list = sl;
  637. st->u.if_branch.else_list = else_st;
  638. st->u.if_branch.finally = finally_st;
  639. addStatementToken(IF_BRANCH, st, pm);
  640. return;
  641. error_:
  642. freeStatement(else_st);
  643. freeStatement(finally_st);
  644. freeStatementList(sl);
  645. return;
  646. }
  647. /**
  648. * 条件循环匹配
  649. * parserWhile:
  650. * | MATHER_WHILE parserOperation (MATHER_AS parserOperation) callParserCode
  651. * | parserWhile MATHER_DO callParserCode [只出现一次]
  652. * | parserWhile MATHER_ELSE callParserCode [只出现一次]
  653. * | parserWhile MATHER_FINALLY callParserCode [结尾]
  654. * 注释:同 ``parserIf``
  655. * 特别注意:匹配顺序自上而下不可逆
  656. * @param pm
  657. * @param inter
  658. */
  659. void parserWhile(PASERSSIGNATURE){
  660. Statement *st = NULL;
  661. Statement *else_st = NULL;
  662. Statement *finally_st = NULL;
  663. Statement *do_st = NULL;
  664. StatementList *sl = NULL;
  665. bool have_while = false;
  666. long int line = 0;
  667. again:
  668. switch (readBackToken(pm)) {
  669. case MATHER_WHILE: {
  670. if (have_while)
  671. goto default_;
  672. else
  673. have_while = true;
  674. Statement *code_tmp = NULL, *var_tmp = NULL, *condition_tmp = NULL;
  675. line = delToken(pm);
  676. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &condition_tmp, "Don't get a while condition"))
  677. goto error_;
  678. if (!callParserAs(CALLPASERSSIGNATURE, &var_tmp, "Don't get a while var")){
  679. freeStatement(condition_tmp);
  680. goto error_;
  681. }
  682. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a while code", line)) {
  683. freeStatement(condition_tmp);
  684. freeStatement(var_tmp);
  685. goto error_;
  686. }
  687. if (sl != NULL)
  688. freeStatementList(sl);
  689. sl = makeStatementList(condition_tmp, var_tmp, code_tmp, while_b);
  690. goto again;
  691. }
  692. case MATHER_DO: {
  693. if (do_st != NULL || else_st != NULL)
  694. goto default_;
  695. long int tmp_line = delToken(pm);
  696. if (!callParserCode(CALLPASERSSIGNATURE, &do_st, "Don't get a while...do code", tmp_line))
  697. goto error_;
  698. goto again;
  699. }
  700. case MATHER_ELSE: {
  701. long int tmp_line = delToken(pm);
  702. if (else_st != NULL) {
  703. syntaxError(pm, syntax_error, tmp_line, 1, "get else after else\n");
  704. goto error_;
  705. }
  706. if (!callParserCode(CALLPASERSSIGNATURE, &else_st, "Don't get a while...else code", tmp_line))
  707. goto error_;
  708. goto again;
  709. }
  710. case MATHER_FINALLY: {
  711. long int tmp_line = delToken(pm);
  712. if (!callParserCode(CALLPASERSSIGNATURE, &finally_st, "Don't get a while...finally code", tmp_line))
  713. goto error_;
  714. break;
  715. }
  716. case MATHER_ENTER:
  717. delToken(pm);
  718. goto again;
  719. case MATHER_SEMICOLON:
  720. break;
  721. default: {
  722. default_:
  723. addLexToken(pm, MATHER_ENTER);
  724. break;
  725. }
  726. }
  727. st = makeWhileStatement(line, pm->file);
  728. st->u.while_branch.while_list = sl;
  729. st->u.while_branch.else_list = else_st;
  730. st->u.while_branch.finally = finally_st;
  731. st->u.while_branch.after = do_st;
  732. addStatementToken(WHILE_BRANCH, st, pm);
  733. return;
  734. error_:
  735. freeStatement(else_st);
  736. freeStatement(finally_st);
  737. freeStatement(do_st);
  738. freeStatementList(sl);
  739. return;
  740. }
  741. /**
  742. * 异常捕获分支匹配
  743. * parserTry:
  744. * | MATHER_TRY callParserCode
  745. * | parserTry MATHER_EXCEPT (MATHER_AS parserOperation) callParserCode
  746. * | parserTry MATHER_ELSE callParserCode [只出现一次]
  747. * | parserTry MATHER_FINALLY callParserCode [结尾]
  748. * 注释:同 ``parserIf``
  749. * 特别注意:匹配顺序自上而下不可逆
  750. * @param pm
  751. * @param inter
  752. */
  753. void parserTry(PASERSSIGNATURE){
  754. Statement *st = NULL;
  755. Statement *try_st = NULL;
  756. Statement *else_st = NULL;
  757. Statement *finally_st = NULL;
  758. StatementList *sl = NULL;
  759. long int line = 0;
  760. again:
  761. switch (readBackToken(pm)) {
  762. case MATHER_TRY:{
  763. if (try_st != NULL)
  764. goto default_;
  765. line = delToken(pm);
  766. if (!callParserCode(CALLPASERSSIGNATURE, &try_st, "Don't get a try code", line))
  767. goto error_;
  768. goto again;
  769. }
  770. case MATHER_EXCEPT: {
  771. Statement *code_tmp = NULL, *var_tmp = NULL, *condition_tmp = NULL;
  772. long int tmp_line = delToken(pm);
  773. if (else_st != NULL) {
  774. syntaxError(pm, syntax_error, tmp_line, 1, "get except after else");
  775. goto error_;
  776. }
  777. if (readBackToken(pm) != MATHER_LC)
  778. callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &condition_tmp, NULL);
  779. if (!callParserAs(CALLPASERSSIGNATURE, &var_tmp, "Don't get a except var")){
  780. freeStatement(condition_tmp);
  781. goto error_;
  782. }
  783. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a except code", tmp_line)) {
  784. freeStatement(condition_tmp);
  785. freeStatement(var_tmp);
  786. goto error_;
  787. }
  788. sl = makeConnectStatementList(sl, condition_tmp, var_tmp, code_tmp, except_b);
  789. goto again;
  790. }
  791. case MATHER_ELSE: {
  792. long int tmp_line = delToken(pm);
  793. if (else_st != NULL) {
  794. syntaxError(pm, syntax_error, tmp_line, 1, "get else after else");
  795. goto error_;
  796. }
  797. if (!callParserCode(CALLPASERSSIGNATURE, &else_st, "Don't get a try...else code", tmp_line))
  798. goto error_;
  799. goto again;
  800. }
  801. case MATHER_FINALLY: {
  802. long int tmp_line = delToken(pm);
  803. if (!callParserCode(CALLPASERSSIGNATURE, &finally_st, "Don't get a try...finally code", tmp_line))
  804. goto error_;
  805. break;
  806. }
  807. case MATHER_ENTER:
  808. delToken(pm);
  809. goto again;
  810. case MATHER_SEMICOLON:
  811. break;
  812. default: {
  813. default_:
  814. addLexToken(pm, MATHER_ENTER);
  815. break;
  816. }
  817. }
  818. st = makeTryStatement(line, pm->file);
  819. st->u.try_branch.try = try_st;
  820. st->u.try_branch.except_list = sl;
  821. st->u.try_branch.else_list = else_st;
  822. st->u.try_branch.finally = finally_st;
  823. addStatementToken(TRY_BRANCH, st, pm);
  824. return;
  825. error_:
  826. freeStatement(try_st);
  827. freeStatement(else_st);
  828. freeStatement(finally_st);
  829. freeStatementList(sl);
  830. return;
  831. }
  832. /**
  833. * 函数定义匹配
  834. * parserDef:
  835. * | parserBaseValue MATHER_LP parserParameter(is_formal) MATHER_RP callParserCode
  836. * 注释:自动添加 <ENTER> 结尾符号
  837. * @param pm
  838. * @param inter
  839. */
  840. void parserDef(PASERSSIGNATURE){
  841. Statement *st = NULL;
  842. Statement *name_tmp = NULL;
  843. Statement *code_tmp = NULL;
  844. Parameter *pt = NULL;
  845. int type = readBackToken(pm);
  846. long int line = delToken(pm);
  847. if (!callChildStatement(CALLPASERSSIGNATURE, parserBaseValue, BASEVALUE, &name_tmp,
  848. "Don't get a function/class name"))
  849. goto error_;
  850. if (!checkToken(pm, MATHER_LP)) {
  851. syntaxError(pm, syntax_error, line, 1, "Don't get a function/class ( before parameter");
  852. goto error_;
  853. }
  854. if (!parserParameter(CALLPASERSSIGNATURE, &pt, true, true, false, false, MATHER_COMMA, MATHER_ASSIGNMENT)) {
  855. lexEnter(pm, false);
  856. syntaxError(pm, syntax_error, line, 1, "Don't get a function/class parameter");
  857. goto error_;
  858. }
  859. if (!checkToken(pm, MATHER_RP)) {
  860. syntaxError(pm, syntax_error, line, 1, "Don't get a function/class ) after parameter");
  861. goto error_;
  862. }
  863. if (!callParserCode(CALLPASERSSIGNATURE, &code_tmp, "Don't get a function code", line)) {
  864. syntaxError(pm, syntax_error, line, 1, "Don't get a function code");
  865. goto error_;
  866. }
  867. if (type == MATHER_DEF)
  868. st = makeFunctionStatement(name_tmp, code_tmp, pt);
  869. else
  870. st = makeClassStatement(name_tmp, code_tmp, pt);
  871. addLexToken(pm, MATHER_ENTER);
  872. addStatementToken(FUNCTION, st, pm);
  873. return;
  874. error_:
  875. freeStatement(name_tmp);
  876. freeStatement(code_tmp);
  877. freeParameter(pt, true);
  878. return;
  879. }
  880. /**
  881. * 函数定义匹配
  882. * parserCode:
  883. * | MATHER_LC parserCommandList MATHER_RC
  884. * 注释:自动忽略MATHER_LC前的空格
  885. * @param pm
  886. * @param inter
  887. */
  888. void parserCode(PASERSSIGNATURE) {
  889. long int line = 0;
  890. Statement *st = makeStatement(line, pm->file);
  891. while (true){
  892. if (readBackToken(pm) != MATHER_LC)
  893. goto again_;
  894. line = delToken(pm);
  895. break;
  896. again_:
  897. if (!checkToken(pm, MATHER_ENTER))
  898. goto return_;
  899. }
  900. parserCommandList(CALLPASERSSIGNATURE, false, st);
  901. if (!call_success(pm))
  902. goto error_;
  903. if (!checkToken(pm, MATHER_RC)) {
  904. printf("tk = %d\n", readBackToken(pm));
  905. syntaxError(pm, syntax_error, line, 1, "Don't get the }"); // 使用{的行号
  906. goto error_;
  907. }
  908. return_:
  909. addStatementToken(CODE, st, pm);
  910. return;
  911. error_:
  912. freeStatement(st);
  913. return;
  914. }
  915. /**
  916. * 表达式匹配
  917. * parserOperation:
  918. * | parserAssignment
  919. */
  920. void parserOperation(PASERSSIGNATURE){
  921. Statement *operation_st = NULL;
  922. if (!callChildStatement(CALLPASERSSIGNATURE, parserAssignment, ASSIGNMENT, &operation_st, NULL))
  923. goto return_;
  924. addStatementToken(OPERATION, operation_st, pm);
  925. return_:
  926. return;
  927. }
  928. /**
  929. * 赋值表达式匹配
  930. * parserAssignment:
  931. * | parserTuple
  932. * | parserAssignment ASSIGNMENT parserTuple [2]
  933. * 注意:在链接statement的时候, 模式[2]相当于 parserTuple ASSIGNMENT parserAssignment
  934. */
  935. bool checkAssignmentLeft(PASERSSIGNATURE, Statement *left){
  936. if (left->type == call_function && !checkFormal(left->u.call_function.parameter)){
  937. syntaxError(pm, syntax_error, left->line, 1, "Don't get success function definition from Assignmen");
  938. return false;
  939. }
  940. return true;
  941. }
  942. bool switchAssignment(PASERSSIGNATURE, int symbol, Statement **st){
  943. switch (symbol) {
  944. case MATHER_ASSIGNMENT:
  945. *st = makeOperationBaseStatement(OPT_ASS, 0, pm->file);
  946. break;
  947. default:
  948. return false;
  949. }
  950. return true;
  951. }
  952. void parserAssignment(PASERSSIGNATURE){
  953. return twoOperation(CALLPASERSSIGNATURE, parserTuple, switchAssignment, checkAssignmentLeft, TUPLE, ASSIGNMENT,
  954. "polynomial", "assignment", true);
  955. }
  956. /**
  957. * 元组匹配
  958. * parserTuple:
  959. * | parserPolynomial
  960. * | parserTuple COMMA parserPolynomial
  961. * @param pm
  962. * @param inter
  963. */
  964. void parserTuple(PASERSSIGNATURE){
  965. Parameter *pt = NULL;
  966. Statement *st = NULL;
  967. Token *tmp = NULL;
  968. long int line = 0;
  969. if (readBackToken(pm) == MATHER_MUL) {
  970. line = pm->tm->ts->token_list->line;
  971. goto parserPt;
  972. }
  973. if (!callChildToken(CALLPASERSSIGNATURE, parserPolynomial, POLYNOMIAL, &tmp, NULL, syntax_error))
  974. goto return_;
  975. if (readBackToken(pm) != MATHER_COMMA){
  976. tmp->token_type = TUPLE;
  977. addToken_(pm ,tmp);
  978. goto return_;
  979. }
  980. line = tmp->line;
  981. addToken_(pm ,tmp);
  982. parserPt:
  983. if (!parserParameter(CALLPASERSSIGNATURE, &pt, false, false, true, false, MATHER_COMMA, MATHER_ASSIGNMENT)) {
  984. syntaxError(pm, syntax_error, line, 1, "Don't get tuple element");
  985. goto return_;
  986. }
  987. st = makeTupleStatement(pt, value_tuple, pt->data.value->line, pm->file);
  988. addStatementToken(TUPLE, st, pm);
  989. return_:
  990. return;
  991. }
  992. /**
  993. * 多项式匹配
  994. * parserPolynomial:
  995. * | parserBaseValue
  996. * | parserPolynomial OPT_ADD parserFactor
  997. * | parserPolynomial OPT_SUB parserFactor
  998. */
  999. bool switchPolynomial(PASERSSIGNATURE, int symbol, Statement **st){
  1000. switch (symbol) {
  1001. case MATHER_ADD:
  1002. *st = makeOperationBaseStatement(OPT_ADD, 0, pm->file);
  1003. break;
  1004. case MATHER_SUB:
  1005. *st = makeOperationBaseStatement(OPT_SUB, 0, pm->file);
  1006. break;
  1007. default:
  1008. return false;
  1009. }
  1010. return true;
  1011. }
  1012. void parserPolynomial(PASERSSIGNATURE){
  1013. return twoOperation(CALLPASERSSIGNATURE, parserFactor, switchPolynomial, NULL, FACTOR, POLYNOMIAL,
  1014. "factor", "polynomial", false);
  1015. }
  1016. /**
  1017. * 因式匹配
  1018. * parserFactor:
  1019. * | parserCallBack
  1020. * | switchFactor OPT_ADD parserCallBack
  1021. * | switchFactor OPT_SUB parserCallBack
  1022. */
  1023. bool switchFactor(PASERSSIGNATURE, int symbol, Statement **st){
  1024. switch (symbol) {
  1025. case MATHER_MUL:
  1026. *st = makeOperationBaseStatement(OPT_MUL, 0, pm->file);
  1027. break;
  1028. case MATHER_DIV:
  1029. *st = makeOperationBaseStatement(OPT_DIV, 0, pm->file);
  1030. break;
  1031. default:
  1032. return false;
  1033. }
  1034. return true;
  1035. }
  1036. void parserFactor(PASERSSIGNATURE){
  1037. return twoOperation(CALLPASERSSIGNATURE, parserCallBack, switchFactor, NULL, CALLBACK, FACTOR,
  1038. "call back", "factor", false);
  1039. }
  1040. /**
  1041. * 函数回调匹配
  1042. * parserCallBack:
  1043. * | parserBaseValue
  1044. * | parserCallBack MATHER_LP parserParameter MATHER_RP
  1045. */
  1046. int tailCall(PASERSSIGNATURE, Token *left_token, Statement **st){
  1047. Parameter *pt = NULL;
  1048. if (readBackToken(pm) != MATHER_LP)
  1049. return -1;
  1050. long int line = delToken(pm);
  1051. if (checkToken(pm, MATHER_RP))
  1052. goto not_pt;
  1053. if (!parserParameter(CALLPASERSSIGNATURE, &pt, true, false, false, false, MATHER_COMMA, MATHER_ASSIGNMENT)) {
  1054. syntaxError(pm, syntax_error, line, 1, "Don't get call parameter");
  1055. return 0;
  1056. }
  1057. if (!checkToken(pm, MATHER_RP)){
  1058. freeParameter(pt, true);
  1059. syntaxError(pm, syntax_error, line, 1, "Don't get ) from call back");
  1060. return 0;
  1061. }
  1062. not_pt:
  1063. *st = makeCallStatement(left_token->data.st, pt);
  1064. return 1;
  1065. }
  1066. void parserCallBack(PASERSSIGNATURE){
  1067. return tailOperation(CALLPASERSSIGNATURE, parserPoint, tailCall, POINT, CALLBACK,
  1068. "point", "call back");
  1069. }
  1070. /**
  1071. * 成员运算符匹配
  1072. * parserPoint:
  1073. * | parserBaseValue
  1074. * | parserBaseValue POINT parserPoint
  1075. */
  1076. bool switchPoint(PASERSSIGNATURE, int symbol, Statement **st){
  1077. switch (symbol) {
  1078. case MATHER_POINT:
  1079. *st = makeOperationBaseStatement(OPT_POINT, 0, pm->file);
  1080. break;
  1081. default:
  1082. return false;
  1083. }
  1084. return true;
  1085. }
  1086. void parserPoint(PASERSSIGNATURE){
  1087. return twoOperation(CALLPASERSSIGNATURE, parserBaseValue, switchPoint, NULL, BASEVALUE, POINT,
  1088. "base value", "point", false);
  1089. }
  1090. /**
  1091. * 字面量匹配
  1092. * parserBaseValue:
  1093. * | MATHER_NUMBER
  1094. * | MATHER_STRING
  1095. * | MATHER_VAR
  1096. * | MATHER_LAMBDA parserParameter MATHER_COLON parserOperation
  1097. * | MATHER_LP parserOperation MATHER_LP
  1098. * | MATHER_LP parserOperation MATHER_LP -> list
  1099. * | MATHER_LP parserOperation MATHER_LP MATHER_VAR
  1100. * | MATHER_LC parserParameter(dict) MATHER_LC
  1101. */
  1102. int getOperation(PASERSSIGNATURE, int right_type, Statement **st, char *name){
  1103. *st = NULL;
  1104. if (checkToken(pm, right_type))
  1105. goto return_;
  1106. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, st, NULL))
  1107. return 0;
  1108. if (!checkToken(pm, right_type)){
  1109. freeStatement(*st);
  1110. return -1;
  1111. }
  1112. return_:
  1113. return 1;
  1114. }
  1115. void parserBaseValue(PASERSSIGNATURE){
  1116. Token *value_token = popNewToken(pm->tm);
  1117. Statement *st = NULL;
  1118. if (MATHER_NUMBER == value_token->token_type){
  1119. Statement *tmp = NULL;
  1120. tmp = makeBaseStrValueStatement(value_token->data.str, number_str, value_token->line, pm->file);
  1121. if (*value_token->data.second_str == NUL)
  1122. st = tmp;
  1123. else{
  1124. Statement *sencod_var = makeBaseVarStatement(value_token->data.second_str, NULL, value_token->line, pm->file);
  1125. st = makeCallStatement(sencod_var, makeValueParameter(tmp));
  1126. }
  1127. }
  1128. else if (MATHER_STRING == value_token->token_type){
  1129. Value *tmp_value = makeStringValue(value_token->data.str, inter);
  1130. Statement *tmp = NULL;
  1131. tmp = makeBaseStrValueStatement(value_token->data.str, string_str, value_token->line, pm->file);
  1132. if (*value_token->data.second_str == NUL)
  1133. st = tmp;
  1134. else{
  1135. Statement *sencod_var = makeBaseVarStatement(value_token->data.second_str, NULL, value_token->line, pm->file);
  1136. st = makeCallStatement(sencod_var, makeValueParameter(tmp));
  1137. }
  1138. }
  1139. else if (MATHER_TRUE == value_token->token_type)
  1140. st = makeBaseValueStatement(bool_true, value_token->line, pm->file);
  1141. else if (MATHER_FALSE == value_token->token_type)
  1142. st = makeBaseValueStatement(bool_false, value_token->line, pm->file);
  1143. else if (MATHER_NULL == value_token->token_type)
  1144. st = makeBaseValueStatement(null_value, value_token->line, pm->file);
  1145. else if (MATHER_PASSVALUE == value_token->token_type)
  1146. st = makeBaseValueStatement(pass_value, value_token->line, pm->file);
  1147. else if (MATHER_LAMBDA == value_token->token_type){
  1148. Parameter *pt = NULL;
  1149. Statement *lambda_st = NULL;
  1150. if (!parserParameter(CALLPASERSSIGNATURE, &pt, false, true, false, false, MATHER_COMMA, MATHER_ASSIGNMENT)) {
  1151. freeToken(value_token, true);
  1152. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get a lambda parameter");
  1153. goto return_;
  1154. }
  1155. if (!checkToken(pm, MATHER_COLON)){
  1156. lambda_st = makeStatement(value_token->line, pm->file);
  1157. goto not_lambda_st;
  1158. }
  1159. if (!callChildStatement(CALLPASERSSIGNATURE, parserOperation, OPERATION, &lambda_st, "Don't get a lambda operation")){
  1160. freeToken(value_token, true);
  1161. goto return_;
  1162. }
  1163. not_lambda_st:
  1164. st = makeLambdaStatement(lambda_st, pt);
  1165. }
  1166. else if (MATHER_VAR == value_token->token_type)
  1167. st = makeBaseVarStatement(value_token->data.str, NULL, value_token->line, pm->file);
  1168. else if (MATHER_SVAR == value_token->token_type){
  1169. Statement *svar_st = NULL;
  1170. if (!callChildStatement(CALLPASERSSIGNATURE, parserBaseValue, BASEVALUE, &svar_st, NULL)){
  1171. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get super var after $");
  1172. freeToken(value_token, true);
  1173. goto return_;
  1174. }
  1175. st = makeBaseSVarStatement(svar_st, NULL);
  1176. }
  1177. else if (MATHER_LB == value_token->token_type){
  1178. int tmp;
  1179. Statement *tmp_st = NULL;
  1180. lexEnter(pm, true);
  1181. tmp = getOperation(CALLPASERSSIGNATURE, MATHER_RB, &tmp_st, "base value");
  1182. lexEnter(pm, false);
  1183. if (tmp == 0){
  1184. freeToken(value_token, true);
  1185. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get operation from Base Value");
  1186. goto return_;
  1187. }
  1188. else if(tmp == -1){
  1189. freeToken(value_token, true);
  1190. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get ] from list/var");
  1191. goto return_; // 优化goto return freeToken
  1192. }
  1193. if (MATHER_VAR == readBackToken(pm)){
  1194. Token *var_token;
  1195. var_token = popNewToken(pm->tm);
  1196. st = makeBaseVarStatement(var_token->data.str, tmp_st, var_token->line, pm->file);
  1197. freeToken(var_token, false);
  1198. }
  1199. else{
  1200. if (tmp_st == NULL)
  1201. st = makeTupleStatement(NULL, value_list, value_token->line, pm->file);
  1202. else if (tmp_st->type == base_list && tmp_st->u.base_list.type == value_tuple){
  1203. tmp_st->u.base_list.type = value_list;
  1204. st = tmp_st;
  1205. }
  1206. else
  1207. st = makeTupleStatement(makeValueParameter(tmp_st), value_list, value_token->token_type, pm->file);
  1208. }
  1209. }
  1210. else if (MATHER_LP == value_token->token_type){
  1211. int tmp;
  1212. lexEnter(pm, true);
  1213. tmp = getOperation(CALLPASERSSIGNATURE, MATHER_RP, &st, "base value");
  1214. lexEnter(pm, false);
  1215. if (tmp == 0){
  1216. freeToken(value_token, true);
  1217. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get operation from Base Value");
  1218. goto return_;
  1219. }
  1220. else if(tmp == -1){
  1221. freeToken(value_token, true);
  1222. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get ) from Base Value");
  1223. goto return_;
  1224. }
  1225. }
  1226. else if (MATHER_LC == value_token->token_type){
  1227. Parameter *pt = NULL;
  1228. int parser_status;
  1229. parser_status = parserParameter(CALLPASERSSIGNATURE, &pt, true, false, false, true, MATHER_COMMA, MATHER_COLON);
  1230. if (!parser_status) {
  1231. freeToken(value_token, true);
  1232. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get a dict parameter");
  1233. goto return_;
  1234. }
  1235. if (!checkToken(pm, MATHER_RC)) {
  1236. freeToken(value_token, true);
  1237. freeParameter(pt, true);
  1238. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get a } after dict");
  1239. goto return_;
  1240. }
  1241. st = makeBaseDictStatement(pt, value_token->line, pm->file);
  1242. }
  1243. else if (MATHER_BLOCK == value_token->token_type){
  1244. Statement *block = NULL;
  1245. if (!callParserCode(CALLPASERSSIGNATURE, &block, "Don't get a while code", value_token->line)) {
  1246. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get block command");
  1247. freeToken(value_token, true);
  1248. goto return_;
  1249. }
  1250. st = makeOperationStatement(OPT_BLOCK, block, NULL);
  1251. }
  1252. else if (MATHER_PROTECT == value_token->token_type || MATHER_PRIVATE == value_token->token_type || MATHER_PUBLIC == value_token->token_type){
  1253. if (MATHER_COLON != readBackToken(pm)){
  1254. syntaxError(pm, syntax_error, value_token->line, 1, "Don't get a : after aut token");
  1255. freeToken(value_token, true);
  1256. goto return_;
  1257. }
  1258. delToken(pm);
  1259. if (!callChildStatement(CALLPASERSSIGNATURE, parserBaseValue, BASEVALUE, &st, "Don't get Base Value after aut token")){
  1260. freeToken(value_token, true);
  1261. goto return_;
  1262. }
  1263. switch (value_token->token_type) {
  1264. case MATHER_PROTECT:
  1265. st->aut = protect_aut;
  1266. break;
  1267. case MATHER_PRIVATE:
  1268. st->aut = private_aut;
  1269. break;
  1270. case MATHER_PUBLIC:
  1271. st->aut = public_aut;
  1272. break;
  1273. }
  1274. }
  1275. else{
  1276. backToken_(pm, value_token);
  1277. goto return_;
  1278. }
  1279. freeToken(value_token, false);
  1280. addStatementToken(BASEVALUE, st, pm);
  1281. return_:
  1282. return;
  1283. }