libcm is a C development framework with an emphasis on audio signal processing applications.
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cmJson.c 108KB

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  1. #include "cmPrefix.h"
  2. #include "cmGlobal.h"
  3. #include "cmFloatTypes.h"
  4. #include "cmRpt.h"
  5. #include "cmErr.h"
  6. #include "cmCtx.h"
  7. #include "cmJson.h"
  8. #include "cmMem.h"
  9. #include "cmMallocDebug.h"
  10. #include "cmLex.h"
  11. #include "cmLinkedHeap.h"
  12. #include "cmFile.h"
  13. enum
  14. {
  15. kLCurlyLexTId = kUserLexTId+1,
  16. kRCurlyLexTId,
  17. kLHardLexTId,
  18. kRHardLexTId,
  19. kColonLexTId,
  20. kCommaLexTId,
  21. kTrueLexTId,
  22. kFalseLexTId,
  23. kNullLexTId
  24. };
  25. typedef struct
  26. {
  27. unsigned id;
  28. const char* text;
  29. } cmJsToken_t;
  30. // serialization buffer header
  31. typedef struct
  32. {
  33. unsigned id; // always set to 'json'
  34. unsigned byteCnt; // count of bytes following this field (total buf bytes = byteCnt + (2*sizeof(unsigned)))
  35. unsigned nodeCnt; // count of nodes in this buffer
  36. unsigned version; // buffer serialization version number
  37. } cmJsSerialHdr_t;
  38. // serialization helper record
  39. typedef struct
  40. {
  41. cmJsSerialHdr_t hdr;
  42. char* basePtr;
  43. char* nextPtr;
  44. char* endPtr;
  45. } cmJsSerial_t;
  46. // deserialization helper record
  47. typedef struct
  48. {
  49. unsigned nodeCnt;
  50. unsigned nodeIdx;
  51. const char* nextPtr;
  52. const char* endPtr;
  53. } cmJsDeserial_t;
  54. typedef struct
  55. {
  56. cmErr_t err; //
  57. cmLexH lexH; // parsing lexer
  58. cmLHeapH_t heapH; // linked heap stores all node memory
  59. cmJsonNode_t* rootPtr; // root of internal node tree
  60. cmJsonNode_t* basePtr; // base of parsing stack
  61. cmJsonNode_t* lastPtr; // top of parsing stack
  62. cmJsRC_t rc; // last error code
  63. char* serialBufPtr; // serial buffer pointer
  64. unsigned serialByteCnt; // count of bytes in serialBuf[]
  65. bool reportErrPosnFl;// report the file posn of syntax errors
  66. } cmJs_t;
  67. cmJsToken_t _cmJsTokenArray[] =
  68. {
  69. { kLCurlyLexTId, "{" },
  70. { kRCurlyLexTId, "}" },
  71. { kLHardLexTId, "[" },
  72. { kRHardLexTId, "]" },
  73. { kColonLexTId, ":" },
  74. { kCommaLexTId, "," },
  75. { kTrueLexTId, "true"},
  76. { kFalseLexTId, "false"},
  77. { kNullLexTId, "null" },
  78. { kErrorLexTId,""}
  79. };
  80. cmJsToken_t _cmJsNodeTypeLabel[] =
  81. {
  82. { kObjectTId, "object" },
  83. { kPairTId, "pair" },
  84. { kArrayTId, "array" },
  85. { kStringTId, "string" },
  86. { kIntTId, "int" },
  87. { kRealTId, "real" },
  88. { kNullTId, "null" },
  89. { kTrueTId, "true" },
  90. { kFalseTId, "false" },
  91. { kInvalidTId,"invalid"}
  92. };
  93. cmJsonH_t cmJsonNullHandle = cmSTATIC_NULL_HANDLE;
  94. cmJsRC_t _cmJsonRemoveNode( cmJs_t* p, cmJsonNode_t* np, bool freeFl, bool balancePairsFl );
  95. void _cmJsonFreeNode( cmJs_t* p, cmJsonNode_t* np);
  96. const char* _cmJsonNodeTypeIdToLabel( unsigned nodeTypeId )
  97. {
  98. unsigned i;
  99. for(i=0; _cmJsNodeTypeLabel[i].id != kInvalidTId; ++i)
  100. if( _cmJsNodeTypeLabel[i].id == nodeTypeId )
  101. break;
  102. return _cmJsNodeTypeLabel[i].text;
  103. }
  104. unsigned _cmJsonNodeTypeLabelToId( const char* typeLabel )
  105. {
  106. unsigned i;
  107. for(i=0; _cmJsNodeTypeLabel[i].id != kInvalidTId; ++i)
  108. if( strcmp(_cmJsNodeTypeLabel[i].text,typeLabel) == 0 )
  109. break;
  110. return _cmJsNodeTypeLabel[i].id;
  111. }
  112. cmJs_t* _cmJsonHandleToPtr( cmJsonH_t h )
  113. {
  114. cmJs_t* p = (cmJs_t*)h.h;
  115. assert(p != NULL);
  116. p->rc = kOkJsRC;
  117. return p;
  118. }
  119. cmJsRC_t _cmJsonError( cmJs_t* p, cmJsRC_t rc, const char* fmt, ... )
  120. {
  121. va_list vl;
  122. va_start(vl,fmt);
  123. rc = cmErrVMsg(&p->err,rc,fmt,vl);
  124. va_end(vl);
  125. return rc;
  126. }
  127. cmJsRC_t _cmJsonSyntaxError( cmJs_t* p, const char* fmt, ... )
  128. {
  129. int bn = 1024;
  130. char buf[bn+1];
  131. buf[0]=0;
  132. buf[bn]=0;
  133. va_list vl;
  134. va_start(vl,fmt);
  135. if( p->reportErrPosnFl )
  136. snprintf(buf,bn,"Syntax error on line:%i column:%i. ",cmLexCurrentLineNumber(p->lexH),cmLexCurrentColumnNumber(p->lexH));
  137. int n = strlen(buf);
  138. vsnprintf(buf+n,bn-n,fmt,vl);
  139. va_end(vl);
  140. return cmErrMsg(&p->err,kSyntaxErrJsRC,"%s",buf);
  141. }
  142. // Note that the stack is formed by a linked list
  143. // which is chained together using the nodes parentPtr.
  144. // This works beacause the parentPtr for object,array,
  145. // and pair nodes (the only nodes on the stack) is not
  146. // needed as long as the node is on the stack. Once the
  147. // node is popped the parentPtr is then set from the
  148. // new stack top.
  149. cmJsRC_t _cmJsonPushNode( cmJs_t* p, cmJsonNode_t* np )
  150. {
  151. np->ownerPtr = p->lastPtr;
  152. p->lastPtr = np;
  153. if( p->basePtr == NULL )
  154. p->basePtr = np;
  155. return kOkJsRC;
  156. }
  157. cmJsRC_t _cmJsonPopNode( cmJs_t* p )
  158. {
  159. if( p->lastPtr == NULL )
  160. return _cmJsonSyntaxError(p,"A parser stack underlow signalled a syntax error.");
  161. cmJsonNode_t* t = p->lastPtr;
  162. // remove the top element
  163. p->lastPtr = p->lastPtr->ownerPtr;
  164. // set the parent of the popped node
  165. t->ownerPtr = p->lastPtr;
  166. if( p->lastPtr == NULL )
  167. p->basePtr = NULL;
  168. return kOkJsRC;
  169. }
  170. cmJsRC_t cmJsonInitialize( cmJsonH_t* hp, cmCtx_t* ctx )
  171. {
  172. cmJsRC_t rc;
  173. cmJs_t* p;
  174. unsigned i;
  175. // finalize before initialize
  176. if((rc = cmJsonFinalize(hp)) != kOkJsRC )
  177. return rc;
  178. // allocate the main object record
  179. if((p = cmMemAllocZ( cmJs_t, 1 )) == NULL )
  180. return cmErrMsg(&ctx->err,kMemAllocErrJsRC,"Object memory allocation failed.");
  181. cmErrSetup(&p->err,&ctx->rpt,"JSON Parser");
  182. // allocate the linked heap mgr
  183. if( cmLHeapIsValid(p->heapH = cmLHeapCreate(1024,ctx)) == false )
  184. {
  185. rc = _cmJsonError(p,kMemAllocErrJsRC,"Linked heap object allocation failed.");
  186. goto errLabel;
  187. }
  188. // allocate the lexer
  189. if(cmLexIsValid(p->lexH = cmLexInit(NULL,0,0,&ctx->rpt)) == false )
  190. {
  191. rc = _cmJsonError(p,kLexErrJsRC,"Lex allocation failed.");
  192. goto errLabel;
  193. }
  194. // register json specific tokens with the lexer
  195. for(i=0; _cmJsTokenArray[i].id != kErrorLexTId; ++i)
  196. {
  197. cmRC_t lexRC;
  198. if( (lexRC = cmLexRegisterToken(p->lexH, _cmJsTokenArray[i].id, _cmJsTokenArray[i].text )) != kOkLexRC )
  199. {
  200. rc = _cmJsonError(p,kLexErrJsRC,"Lex token registration failed for:'%s'.\nLexer Error:%s",_cmJsTokenArray[i].text, cmLexRcToMsg(lexRC) );
  201. goto errLabel;
  202. }
  203. }
  204. hp->h = p;
  205. return kOkJsRC;
  206. errLabel:
  207. cmMemPtrFree(&p);
  208. if( cmLHeapIsValid(p->heapH) )
  209. cmLHeapDestroy(&p->heapH);
  210. if( cmLexIsValid(p->lexH) )
  211. cmLexFinal(&p->lexH);
  212. return rc;
  213. }
  214. cmJsRC_t cmJsonInitializeFromFile( cmJsonH_t* hp, const char* fn, cmCtx_t* ctx )
  215. {
  216. cmJsRC_t jsRC;
  217. if((jsRC = cmJsonInitialize(hp,ctx)) != kOkJsRC )
  218. return jsRC;
  219. if((jsRC = cmJsonParseFile(*hp,fn,NULL)) != kOkJsRC )
  220. cmJsonFinalize(hp);
  221. return jsRC;
  222. }
  223. cmJsRC_t cmJsonInitializeFromBuf( cmJsonH_t* hp, cmCtx_t* ctx, const char* buf, unsigned bufByteCnt )
  224. {
  225. cmJsRC_t jsRC;
  226. if((jsRC = cmJsonInitialize(hp,ctx)) != kOkJsRC )
  227. return jsRC;
  228. if((jsRC = cmJsonParse(*hp,buf,bufByteCnt,NULL)) != kOkJsRC )
  229. cmJsonFinalize(hp);
  230. return jsRC;
  231. }
  232. cmJsRC_t cmJsonFinalize( cmJsonH_t* hp )
  233. {
  234. cmRC_t lexRC;
  235. if( hp == NULL || hp->h == NULL )
  236. return kOkJsRC;
  237. cmJs_t* p = _cmJsonHandleToPtr(*hp);
  238. // free the internal heap object
  239. cmLHeapDestroy( &p->heapH );
  240. // free the lexer
  241. if( cmLexIsValid(p->lexH) )
  242. if((lexRC = cmLexFinal(&p->lexH)) != kOkLexRC )
  243. return _cmJsonError(p,kLexErrJsRC,"Lexer finalization failed.\nLexer Error:%s",cmLexRcToMsg(lexRC));
  244. cmMemPtrFree(&p->serialBufPtr);
  245. // free the handle
  246. cmMemPtrFree(&hp->h);
  247. return kOkJsRC;
  248. }
  249. bool cmJsonIsValid( cmJsonH_t h )
  250. { return h.h != NULL; }
  251. cmJsRC_t _cmJsonLinkInChild( cmJs_t* p, cmJsonNode_t* parentPtr, cmJsonNode_t* np )
  252. {
  253. cmJsRC_t rc = kOkJsRC;
  254. np->ownerPtr = parentPtr;
  255. switch( parentPtr->typeId )
  256. {
  257. case kObjectTId:
  258. case kArrayTId:
  259. case kPairTId:
  260. {
  261. // if the parent is an 'object' then the child must be a 'pair'
  262. if( parentPtr->typeId == kObjectTId && np->typeId != kPairTId )
  263. rc = _cmJsonSyntaxError(p,"Expect only 'pair' nodes as children of 'objects'.");
  264. // if the parent is a 'pair' then is may have a max of two children
  265. if( parentPtr->typeId == kPairTId && cmJsonChildCount(parentPtr) >= 2 )
  266. rc = _cmJsonSyntaxError(p,"'pair' nodes may only have 2 children.");
  267. // insert the new node into the parent child list
  268. // if the new node is the first child
  269. if( parentPtr->u.childPtr == NULL )
  270. parentPtr->u.childPtr = np;
  271. else
  272. {
  273. // if the new node is the second or greater child
  274. cmJsonNode_t* lp = parentPtr->u.childPtr;
  275. while( lp->siblingPtr != NULL )
  276. lp = lp->siblingPtr;
  277. lp->siblingPtr = np;
  278. }
  279. }
  280. break;
  281. default:
  282. rc = _cmJsonSyntaxError(p,"'%s' nodes cannot be parent nodes.",_cmJsonNodeTypeIdToLabel(parentPtr->typeId));
  283. break;
  284. }
  285. return rc;
  286. }
  287. // This function creates nodes it also:
  288. // 1. inserts array elments into their parents child list
  289. // 2. inserts pairs into their parents member list
  290. // 3. assigns values to pairs
  291. cmJsRC_t _cmJsonCreateNode( cmJs_t* p, cmJsonNode_t* parentPtr, unsigned newNodeTypeId, cmJsonNode_t** npp )
  292. {
  293. cmJsRC_t rc = kOkJsRC;
  294. cmJsonNode_t* np;
  295. assert( npp != NULL );
  296. *npp = NULL;
  297. // allocate the new node
  298. if((np = cmLHeapAllocZ( p->heapH, sizeof(cmJsonNode_t) )) == NULL )
  299. return _cmJsonError(p,kMemAllocErrJsRC,"Error allocating node memory.");
  300. // set the new node type
  301. np->typeId = newNodeTypeId;
  302. np->ownerPtr = parentPtr;
  303. if( parentPtr == NULL )
  304. {
  305. if( newNodeTypeId != kObjectTId && newNodeTypeId != kArrayTId )
  306. rc = _cmJsonSyntaxError(p,"'%s' nodes must have a parent node.",_cmJsonNodeTypeIdToLabel(newNodeTypeId));
  307. }
  308. else
  309. {
  310. // if the parent is an 'object', 'array', or 'pair' then the
  311. // new node must be a child - insert it into the parent child list
  312. if((rc = _cmJsonLinkInChild( p, parentPtr, np )) != kOkJsRC )
  313. return rc;
  314. switch( newNodeTypeId )
  315. {
  316. case kObjectTId:
  317. case kArrayTId:
  318. break;
  319. case kPairTId:
  320. if( parentPtr == NULL || parentPtr->typeId != kObjectTId )
  321. rc = _cmJsonSyntaxError(p,"'pair' nodes must be the child of an object 'node'.");
  322. break;
  323. default:
  324. if( parentPtr == NULL )
  325. rc = _cmJsonSyntaxError(p,"'%s' nodes must have parent nodes.",_cmJsonNodeTypeIdToLabel(newNodeTypeId));
  326. }
  327. }
  328. // assign the return value
  329. *npp = np;
  330. if( p->rootPtr == NULL)
  331. {
  332. if( np->typeId != kObjectTId && np->typeId != kArrayTId )
  333. rc = _cmJsonSyntaxError(p,"The root object must be an 'object' or 'array'.");
  334. p->rootPtr = np;
  335. }
  336. return rc;
  337. }
  338. cmJsRC_t _cmJsonCreateNumber( cmJs_t* p, cmJsonNode_t* parentPtr, unsigned nodeTId, cmJsonNode_t** npp )
  339. {
  340. // numbers may only occurr as children of a 'pair' or element of an 'array'
  341. if( (parentPtr==NULL) || (parentPtr->typeId != kPairTId && parentPtr->typeId != kArrayTId) )
  342. return _cmJsonSyntaxError(p, "The parent of scalar:%*s is not a 'pair' or 'array'.", cmLexTokenCharCount(p->lexH), cmLexTokenText(p->lexH) );
  343. return _cmJsonCreateNode(p,parentPtr,nodeTId,npp);
  344. }
  345. cmJsRC_t _cmJsonCreateReal(cmJs_t* p, cmJsonNode_t* parentPtr, double v, cmJsonNode_t** newNodePtrPtr )
  346. {
  347. cmJsRC_t rc;
  348. cmJsonNode_t* np = NULL;
  349. if( newNodePtrPtr != NULL )
  350. *newNodePtrPtr = NULL;
  351. if((rc= _cmJsonCreateNumber(p,parentPtr,kRealTId,&np)) == kOkJsRC )
  352. {
  353. np->u.realVal = v;
  354. if( newNodePtrPtr != NULL)
  355. *newNodePtrPtr = np;
  356. }
  357. return rc;
  358. }
  359. cmJsRC_t _cmJsonCreateInt(cmJs_t* p, cmJsonNode_t* parentPtr, int v, cmJsonNode_t** newNodePtrPtr )
  360. {
  361. cmJsRC_t rc;
  362. cmJsonNode_t* np = NULL;
  363. if( newNodePtrPtr != NULL )
  364. *newNodePtrPtr = NULL;
  365. if((rc= _cmJsonCreateNumber(p,parentPtr,kIntTId,&np)) == kOkJsRC )
  366. {
  367. np->u.intVal = v;
  368. if( newNodePtrPtr != NULL )
  369. *newNodePtrPtr = np;
  370. }
  371. return rc;
  372. }
  373. cmJsRC_t _cmJsonCreateBool(cmJs_t* p, cmJsonNode_t* parentPtr, bool fl, cmJsonNode_t** newNodePtrPtr )
  374. {
  375. cmJsRC_t rc;
  376. cmJsonNode_t* np = NULL;
  377. if( newNodePtrPtr != NULL )
  378. *newNodePtrPtr = NULL;
  379. if((rc= _cmJsonCreateNumber(p,parentPtr,fl?kTrueTId:kFalseTId,&np)) == kOkJsRC )
  380. {
  381. np->u.boolVal = fl;
  382. if( newNodePtrPtr != NULL )
  383. *newNodePtrPtr = np;
  384. }
  385. return rc;
  386. }
  387. cmJsRC_t _cmJsonCreateNull(cmJs_t* p, cmJsonNode_t* parentPtr, cmJsonNode_t** newNodePtrPtr )
  388. {
  389. cmJsRC_t rc;
  390. cmJsonNode_t* np = NULL;
  391. if( newNodePtrPtr != NULL )
  392. *newNodePtrPtr = NULL;
  393. if((rc = _cmJsonCreateNumber(p,parentPtr,kNullTId,&np)) == kOkJsRC )
  394. {
  395. if( newNodePtrPtr != NULL )
  396. *newNodePtrPtr = np;
  397. }
  398. return rc;
  399. }
  400. cmJsRC_t _cmJsonEscapeInt( cmJs_t* p, const char* sp, unsigned i, unsigned n, unsigned hexDigitCnt, char* rp )
  401. {
  402. char buf[hexDigitCnt+1];
  403. memset(buf,0,hexDigitCnt+1);
  404. // fill buf[] with the next two characters
  405. unsigned j;
  406. for(j=0; i<n && j<hexDigitCnt; ++i,++j)
  407. buf[j] = sp[i];
  408. // be sure the buffer was filled - we must get exactly two characters
  409. if( i == n )
  410. return _cmJsonError(p,kInvalidHexEscapeJsRC,"An invalid hex escape code was encountered.");
  411. // do the text to int conversion
  412. errno = 0;
  413. long val = strtol(buf,NULL,16);
  414. // validate the conversion
  415. if( errno != 0 )
  416. return _cmJsonError(p,kInvalidHexEscapeJsRC,"Hex escape value conversion failed.");
  417. // convert the long to a character
  418. if( val > 0xff )
  419. return _cmJsonError(p,kInvalidHexEscapeJsRC,"Hex escape value is out of range (0x00-0xff).");
  420. *rp = (char)val;
  421. return kOkJsRC;
  422. }
  423. cmJsRC_t _cmJsonEscapeString( cmJs_t* p, char* dp, const char* sp, unsigned n )
  424. {
  425. cmJsRC_t rc;
  426. unsigned hexDigCnt = 2; // count of digits in \u notation
  427. unsigned i,j;
  428. for(i=0,j=0; i<n; ++i,++j)
  429. {
  430. if( (sp[i] == '\\') && (i<(n-1) ))
  431. {
  432. switch( sp[i+1] )
  433. {
  434. case 'b': dp[j] = '\b'; break;
  435. case 'f': dp[j] = '\f'; break;
  436. case 'n': dp[j] = '\n'; break;
  437. case 'r': dp[j] = '\r'; break;
  438. case 't': dp[j] = '\t'; break;
  439. case 'u':
  440. {
  441. if((rc = _cmJsonEscapeInt( p, sp, i+2, n, hexDigCnt, dp+j )) != kOkJsRC )
  442. return rc;
  443. i += hexDigCnt; // skip hex digits
  444. }
  445. break;
  446. default:
  447. dp[j] = sp[i+1];
  448. break;
  449. }
  450. ++i; // skip the escape character '\'
  451. }
  452. else
  453. {
  454. dp[j] = sp[i];
  455. }
  456. }
  457. if( j < n )
  458. dp[j] = 0;
  459. return kOkJsRC;
  460. }
  461. // if 'cp' is NULL or 'cn' is 0 then the current string is dealloc'd
  462. // and the internal string value is left as NULL.
  463. cmJsRC_t _cmJsonSetString( cmJs_t* p, cmJsonNode_t* np, const char* cp, unsigned cn )
  464. {
  465. assert( np->typeId == kStringTId );
  466. cmJsRC_t rc = kOkJsRC;
  467. // deallocate the current string
  468. if( np->u.stringVal != NULL )
  469. {
  470. cmLHeapFree(p->heapH,np->u.stringVal);
  471. np->u.stringVal = NULL;
  472. }
  473. if( cp != NULL && cn>0 )
  474. {
  475. // allocate the node data memory to hold the string
  476. if((np->u.stringVal = cmLHeapAllocZ(p->heapH,cn+1)) == NULL )
  477. return _cmJsonError(p,kMemAllocErrJsRC,"Unable to allocate stirng memory.");
  478. // copy the string into the node data memory
  479. if((rc = _cmJsonEscapeString(p, np->u.stringVal, cp, cn)) != kOkJsRC )
  480. return rc;
  481. np->u.stringVal[cn]=0;
  482. }
  483. return rc;
  484. }
  485. cmJsRC_t _cmJsonCreateString(cmJs_t* p, cmJsonNode_t* parentPtr, const char* cp, unsigned cn, cmJsonNode_t** newNodePtrPtr )
  486. {
  487. cmJsRC_t rc;
  488. cmJsonNode_t* np = NULL;
  489. if( newNodePtrPtr != NULL )
  490. *newNodePtrPtr = NULL;
  491. // strings may only occurr as children of a 'pair' or element of an 'array'
  492. if( (parentPtr->typeId != kPairTId && parentPtr->typeId != kArrayTId ) )
  493. return _cmJsonSyntaxError(p, "The parent of string:%*s is not a 'pair', 'array', or 'object'.", cn,cp);
  494. // create the new node
  495. if((rc = _cmJsonCreateNode(p,parentPtr,kStringTId,&np)) != kOkJsRC )
  496. return rc;
  497. if((rc = _cmJsonSetString(p,np,cp,cn)) != kOkJsRC )
  498. return rc;
  499. /*
  500. // allocate the node data memory to hold the string
  501. if((np->u.stringVal = cmLHeapAllocZ(p->heapH,cn+1)) == NULL )
  502. return _cmJsonError(p,kMemAllocErrJsRC,"Unable to allocate stirng memory.");
  503. if((rc = _cmJsonEscapeString(p, np->u.stringVal, cp, cn)) != kOkJsRC )
  504. return rc;
  505. // copy the string into the node data memory
  506. //strncpy(np->u.stringVal,cp,cn);
  507. np->u.stringVal[cn]=0;
  508. */
  509. if( newNodePtrPtr != NULL )
  510. *newNodePtrPtr = np;
  511. return rc;
  512. }
  513. cmJsRC_t _cmJsonCreatePair( cmJs_t* p, cmJsonNode_t* parentPtr, const char* label, cmJsonNode_t** newNodePtrPtr )
  514. {
  515. cmJsRC_t rc;
  516. if((rc = _cmJsonCreateNode(p,parentPtr,kPairTId,newNodePtrPtr)) != kOkJsRC )
  517. return rc;
  518. return _cmJsonCreateString( p, *newNodePtrPtr, label, strlen(label), NULL);
  519. }
  520. // if fn == NULL then the buffer must contain the text to parse
  521. cmJsRC_t _cmJsonParse(cmJsonH_t h, const char* buf, unsigned bufCharCnt, const cmChar_t* fn, cmJsonNode_t* altRootPtr )
  522. {
  523. unsigned lexTId = kErrorLexTId;
  524. cmJs_t* p = _cmJsonHandleToPtr(h);
  525. cmJsonNode_t* cnp = altRootPtr == p->rootPtr ? altRootPtr : p->rootPtr;
  526. cmJsonNode_t* nnp = NULL;
  527. cmJsRC_t rc;
  528. p->reportErrPosnFl = true;
  529. // assign the text buffer and reset the lexer
  530. if( fn == NULL )
  531. rc = cmLexSetTextBuffer( p->lexH, buf, bufCharCnt );
  532. else
  533. rc = cmLexSetFile( p->lexH, fn );
  534. if( rc != kOkLexRC )
  535. return _cmJsonError( p, kLexErrJsRC, "Error setting lexer buffer.");
  536. // get the next token
  537. while( (lexTId = cmLexGetNextToken( p->lexH )) != kErrorLexTId && (lexTId != kEofLexTId ) && (rc==kOkJsRC) )
  538. {
  539. cnp = p->lastPtr;
  540. // if cnp is a pair and it's value has been assigned
  541. if( cnp != NULL && cnp->typeId == kPairTId && cmJsonChildCount(cnp)==2 )
  542. {
  543. if((rc = _cmJsonPopNode(p)) != kOkJsRC )
  544. break;
  545. cnp = p->lastPtr;
  546. }
  547. switch( lexTId )
  548. {
  549. case kRealLexTId: // real number
  550. rc = _cmJsonCreateReal(p, cnp, cmLexTokenDouble( p->lexH ), NULL);
  551. break;
  552. case kHexLexTId: // hexidecimal integer
  553. // allow hex integers to be equivalent to decimal integers
  554. case kIntLexTId: // decimal integer
  555. rc = _cmJsonCreateInt(p, cnp, cmLexTokenInt( p->lexH ), NULL );
  556. break;
  557. case kTrueLexTId: // true
  558. rc = _cmJsonCreateBool(p, cnp, true, NULL );
  559. break;
  560. case kFalseLexTId: // false
  561. rc = _cmJsonCreateBool(p, cnp, false, NULL );
  562. break;
  563. case kNullLexTId: // null
  564. rc = _cmJsonCreateNull(p, cnp, NULL );
  565. break;
  566. case kIdentLexTId: // identifier
  567. // allow identifiers to be equivalent to strings.
  568. case kQStrLexTId: // quoted string
  569. if( cnp == NULL )
  570. rc = _cmJsonSyntaxError(p,"Encountered a 'string' with no parent.");
  571. else
  572. if( cnp->typeId == kObjectTId )
  573. {
  574. if((rc = _cmJsonCreateNode(p,cnp,kPairTId,&nnp)) == kOkJsRC )
  575. {
  576. _cmJsonPushNode(p,nnp);
  577. cnp = nnp;
  578. }
  579. //if((rc = _cmJsonCreateNewParent(p,cnp,kPairTId)) == kOkJsRC )
  580. // cnp = p->lastPtr;
  581. }
  582. if( rc == kOkJsRC )
  583. rc = _cmJsonCreateString(p, cnp, cmLexTokenText(p->lexH), cmLexTokenCharCount(p->lexH), NULL);
  584. break;
  585. case kColonLexTId:
  586. if( cnp->typeId != kPairTId )
  587. rc = _cmJsonSyntaxError(p,"A colon was found outside of a 'pair' element.");
  588. break;
  589. case kLCurlyLexTId: // {
  590. //rc = _cmJsonCreateNewParent(p, cnp, kObjectTId );
  591. if((rc = _cmJsonCreateNode(p,cnp,kObjectTId,&nnp)) == kOkJsRC )
  592. _cmJsonPushNode(p,nnp);
  593. break;
  594. case kRCurlyLexTId: // }
  595. if( cnp == NULL || cnp->typeId != kObjectTId )
  596. rc = _cmJsonSyntaxError(p,"A '}' was found without an accompanying opening bracket.");
  597. else
  598. rc = _cmJsonPopNode(p);
  599. break;
  600. case kLHardLexTId: // [
  601. //rc = _cmJsonCreateNewParent(p, cnp, kArrayTId);
  602. if((rc = _cmJsonCreateNode(p,cnp,kArrayTId,&nnp)) == kOkJsRC )
  603. _cmJsonPushNode(p,nnp);
  604. break;
  605. case kRHardLexTId: // ]
  606. if( cnp == NULL || cnp->typeId != kArrayTId )
  607. rc = _cmJsonSyntaxError(p,"A ']' was found without an accompanying opening bracket.");
  608. else
  609. rc = _cmJsonPopNode(p);
  610. break;
  611. case kCommaLexTId: // ,
  612. if( (cnp==NULL) || (cnp->typeId != kArrayTId && cnp->typeId != kObjectTId) )
  613. rc = _cmJsonSyntaxError(p,"Commas may only occur in 'array' and 'object' nodes.");
  614. break;
  615. case kSpaceLexTId: // white space
  616. case kBlockCmtLexTId: // block comment
  617. case kLineCmtLexTId: // line comment
  618. assert(0);
  619. break;
  620. default:
  621. break;
  622. }
  623. }
  624. if( lexTId == kErrorLexTId )
  625. rc = _cmJsonSyntaxError( p, "The lexer failed: %s.", cmLexRcToMsg(cmLexErrorRC(p->lexH)));
  626. p->reportErrPosnFl = false;
  627. return rc;
  628. }
  629. cmJsRC_t cmJsonParse( cmJsonH_t h, const char* buf, unsigned bufCharCnt, cmJsonNode_t* altRootPtr )
  630. { return _cmJsonParse(h,buf,bufCharCnt,NULL,altRootPtr); }
  631. cmJsRC_t cmJsonParseFile( cmJsonH_t h, const char* fn, cmJsonNode_t* altRootPtr )
  632. { return _cmJsonParse(h,NULL,0,fn,altRootPtr); }
  633. /*
  634. cmJsRC_t cmJsonParseFile( cmJsonH_t h, const char* fn )
  635. {
  636. cmJsRC_t rc = kOkJsRC;
  637. FILE* fp = NULL;
  638. cmJs_t* p = _cmJsonHandleToPtr(h);
  639. unsigned n = 0;
  640. char* textBuf = NULL;
  641. assert( fn != NULL && p != NULL );
  642. // open the file
  643. if((fp = fopen(fn,"rb")) == NULL )
  644. return _cmJsonError(p,kFileOpenErrJsRC,"Unable to open the file:'%s'.",fn);
  645. // seek to the end
  646. if( fseek(fp,0,SEEK_END) != 0 )
  647. {
  648. rc= _cmJsonError(p,kFileSeekErrJsRC,"Unable to seek to the end of '%s'.",fn);
  649. goto errLabel;
  650. }
  651. // get the length of the file
  652. if( (n=ftell(fp)) == 0 )
  653. {
  654. rc = _cmJsonError(p,kFileOpenErrJsRC,"The file '%s' appears to be empty.",fn);
  655. goto errLabel;
  656. }
  657. // rewind the file
  658. if( fseek(fp,0,SEEK_SET) != 0 )
  659. {
  660. rc = _cmJsonError(p,kFileSeekErrJsRC,"Unable to seek to the beginning of '%s'.",fn);
  661. goto errLabel;
  662. }
  663. // allocate the text buffer
  664. if((textBuf = cmMemAllocZ( char, n+1)) == NULL )
  665. {
  666. rc = _cmJsonError(p,kMemAllocErrJsRC,"Unable to allocate the text file buffer for:'%s'.",fn);
  667. goto errLabel;
  668. }
  669. // read the file into the text buffer
  670. if( fread(textBuf,n,1,fp) != 1 )
  671. {
  672. rc = _cmJsonError(p,kFileReadErrJsRC,"File read failed on:'%s'.",fn);
  673. goto errLabel;
  674. }
  675. rc = cmJsonParse(h,textBuf,n,NULL);
  676. errLabel:
  677. // close the file
  678. if( fclose(fp) != 0 )
  679. {
  680. rc = _cmJsonError(p,kFileCloseErrJsRC,"File close failed on:'%s'.",fn);
  681. goto errLabel;
  682. }
  683. // free the buffer
  684. if( textBuf != NULL )
  685. cmMemFree(textBuf);
  686. return rc;
  687. }
  688. */
  689. cmJsonNode_t* cmJsonRoot( cmJsonH_t h )
  690. {
  691. cmJs_t* p = _cmJsonHandleToPtr(h);
  692. return p->rootPtr;
  693. }
  694. cmJsRC_t cmJsonClearTree( cmJsonH_t h )
  695. {
  696. cmJs_t* p = _cmJsonHandleToPtr(h);
  697. p->rootPtr = NULL;
  698. p->basePtr = NULL;
  699. p->lastPtr = NULL;
  700. cmLHeapClear(p->heapH,true);
  701. return kOkJsRC;
  702. }
  703. bool cmJsonIsObject( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kObjectTId); }
  704. bool cmJsonIsArray( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kArrayTId); }
  705. bool cmJsonIsPair( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kPairTId); }
  706. bool cmJsonIsString( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kStringTId); }
  707. bool cmJsonIsInt( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kIntTId); }
  708. bool cmJsonIsReal( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kRealTId); }
  709. bool cmJsonIsBool( const cmJsonNode_t* np ) { return cmIsFlag(np->typeId,kTrueTId | kFalseTId); }
  710. unsigned cmJsonChildCount( const cmJsonNode_t* np )
  711. {
  712. if( np == NULL )
  713. return 0;
  714. unsigned n = 0;
  715. switch( np->typeId )
  716. {
  717. case kObjectTId:
  718. case kArrayTId:
  719. case kPairTId:
  720. {
  721. const cmJsonNode_t* lp = np->u.childPtr;
  722. while( lp != NULL )
  723. {
  724. ++n;
  725. lp = lp->siblingPtr;
  726. }
  727. }
  728. break;
  729. default:
  730. break;
  731. }
  732. return n;
  733. }
  734. cmJsonNode_t* cmJsonArrayElement( cmJsonNode_t* np, unsigned index )
  735. {
  736. unsigned i;
  737. assert( index < cmJsonChildCount(np));
  738. np = np->u.childPtr;
  739. for(i=0; i<index; ++i)
  740. np = np->siblingPtr;
  741. return np;
  742. }
  743. const cmJsonNode_t* cmJsonArrayElementC( const cmJsonNode_t* np, unsigned index )
  744. { return cmJsonArrayElement( (cmJsonNode_t*)np, index ); }
  745. const char* cmJsonPairLabel( const cmJsonNode_t* pairPtr )
  746. {
  747. assert( pairPtr->typeId == kPairTId );
  748. if( pairPtr->typeId != kPairTId )
  749. return NULL;
  750. return pairPtr->u.childPtr->u.stringVal;
  751. }
  752. unsigned cmJsonPairTypeId( const cmJsonNode_t* pairPtr )
  753. {
  754. assert( pairPtr->typeId == kPairTId );
  755. return pairPtr->u.childPtr->siblingPtr->typeId;
  756. }
  757. cmJsonNode_t* cmJsonPairValue( cmJsonNode_t* pairPtr )
  758. {
  759. assert( pairPtr->typeId == kPairTId );
  760. if( pairPtr->typeId != kPairTId )
  761. return NULL;
  762. return pairPtr->u.childPtr->siblingPtr;
  763. }
  764. cmJsonNode_t* cmJsonFindValue( cmJsonH_t h, const char* label, const cmJsonNode_t* np, unsigned keyTypeMask )
  765. {
  766. cmJs_t* p = _cmJsonHandleToPtr(h);
  767. if( np == NULL )
  768. np = p->rootPtr;
  769. if( np == NULL )
  770. return NULL;
  771. // we are only interested in pairs
  772. if( np->typeId == kPairTId )
  773. {
  774. // pairs must have exactly two nodes - the first must be a string
  775. assert(np->u.childPtr != NULL && np->u.childPtr->typeId == kStringTId && np->u.childPtr->siblingPtr != NULL );
  776. if( strcmp(cmJsonPairLabel(np),label) == 0 )
  777. {
  778. if( (keyTypeMask==kInvalidTId) || (keyTypeMask & np->u.childPtr->siblingPtr->typeId) )
  779. return np->u.childPtr->siblingPtr;
  780. }
  781. }
  782. // if the node is an object,array, or pair ...
  783. if( np->typeId==kObjectTId || np->typeId==kArrayTId || np->typeId==kPairTId )
  784. {
  785. // ... then recurse on its children
  786. cmJsonNode_t* cnp = np->u.childPtr;
  787. while(cnp != NULL)
  788. {
  789. cmJsonNode_t* rp;
  790. if((rp = cmJsonFindValue(h,label,cnp,keyTypeMask)) != NULL )
  791. return rp;
  792. cnp = cnp->siblingPtr;
  793. }
  794. }
  795. return NULL;
  796. }
  797. cmJsRC_t _cmJsonFindPathValue( cmJs_t* p, const char* pathPrefix, const char* path, const cmJsonNode_t* rp, const cmJsonNode_t** rpp )
  798. {
  799. cmJsRC_t rc = kOkJsRC;
  800. if( rp == NULL )
  801. rp = p->rootPtr;
  802. if( rp == NULL )
  803. return kOkJsRC;
  804. assert( cmJsonIsObject(rp));
  805. assert( rpp != NULL );
  806. *rpp = NULL;
  807. // create a copy of the path
  808. unsigned i,j;
  809. unsigned sn = (pathPrefix==NULL ? 0 : strlen(pathPrefix)) + strlen(path) + 1; // add one for the possible extra seperator
  810. char ss[ 1024 ];
  811. char* sp = NULL;
  812. char* sm = NULL;
  813. char* sb = ss;
  814. // don't put more than 1k on the stack
  815. if( sn + 1 > 1024 )
  816. {
  817. sm = cmMemAllocZ(char,sn+1);
  818. sb = sm;
  819. }
  820. sp = sb;
  821. sp[0] = 0;
  822. if(pathPrefix != NULL )
  823. {
  824. strcpy(sp,pathPrefix);
  825. // if pathPrefix does not end in a '/' then insert one
  826. if( sp[ strlen(sp)-1 ] != '/' )
  827. strcat(sp,"/");
  828. }
  829. // the '/' has already been inserted - skip any leading '/' character in path
  830. strcat(sp,path[0]=='/' ? path+1 : path );
  831. // terminate each path label with a '/0'.
  832. sp = ss;
  833. for(i=0,j=0; sp < ss + sn; ++sp, ++i )
  834. if( *sp == '/' )
  835. {
  836. *sp = 0;
  837. ++j;
  838. }
  839. if( i > 0 )
  840. {
  841. sp = sb;
  842. while( sp < sb + sn )
  843. {
  844. // labeled values are always associated with pairs and
  845. // pairs only exist as the children of objects.
  846. if( cmJsonIsObject(rp) == false )
  847. {
  848. rc = cmErrMsg(&p->err,kInvalidNodeTypeJsRC,"A non-object node was encountered on a object path.");
  849. break;
  850. }
  851. // get the count of pairs in this object
  852. unsigned cn = cmJsonChildCount( rp );
  853. cmJsonNode_t* cp = rp->u.childPtr;
  854. unsigned k;
  855. for(k=0; k<cn; ++k)
  856. {
  857. // all children of an object must be pairs
  858. assert( cp != NULL && cmJsonIsPair(cp) );
  859. // if this is the labeled pair we are looking for
  860. if( strcmp(cmJsonPairLabel(cp),sp) == 0 )
  861. break;
  862. cp = cp->siblingPtr;
  863. }
  864. // if the search failed
  865. if( k == cn || cp == NULL )
  866. {
  867. rc = cmErrMsg(&p->err,kNodeNotFoundJsRC,"The path label '%s' could not be found.",cmStringNullGuard(sp));
  868. break;
  869. }
  870. // take the value of the located pair to continue the search
  871. rp = cmJsonPairValue(cp);
  872. // advance to the next label
  873. sp += strlen(sp) + 1;
  874. }
  875. }
  876. cmMemPtrFree(&sm);
  877. *rpp = rp;
  878. return rc;
  879. }
  880. cmJsRC_t _cmJsonPathToValueError( cmJs_t* p, cmJsRC_t rc, const char* pathPrefix, const char* path, const char* typeLabel )
  881. {
  882. if( pathPrefix != NULL )
  883. cmErrMsg(&p->err,rc,"The JSON value at '%s/%s' could not be converted to a '%s'.",cmStringNullGuard(pathPrefix),cmStringNullGuard(path),cmStringNullGuard(typeLabel));
  884. else
  885. cmErrMsg(&p->err,rc,"The JSON value at '%s' could not be converted to a '%s'.",cmStringNullGuard(path),cmStringNullGuard(typeLabel));
  886. return rc;
  887. }
  888. cmJsRC_t cmJsonPathToValueNode( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const cmJsonNode_t** nodePtrPtr )
  889. {
  890. cmJsRC_t rc = kOkJsRC;
  891. cmJs_t* p = _cmJsonHandleToPtr(h);
  892. if( objectNodePtr == NULL )
  893. objectNodePtr = p->rootPtr;
  894. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,nodePtrPtr)) != kOkJsRC )
  895. return rc;
  896. return rc;
  897. }
  898. cmJsRC_t cmJsonPathToBool( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, bool* retValPtr )
  899. {
  900. const cmJsonNode_t* rp;
  901. cmJsRC_t rc = kOkJsRC;
  902. cmJs_t* p = _cmJsonHandleToPtr(h);
  903. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  904. return rc;
  905. if((rc = cmJsonBoolValue(rp,retValPtr)) != kOkJsRC )
  906. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"bool");
  907. return rc;
  908. }
  909. cmJsRC_t cmJsonPathToInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, int* retValPtr )
  910. {
  911. const cmJsonNode_t* rp;
  912. cmJsRC_t rc = kOkJsRC;
  913. cmJs_t* p = _cmJsonHandleToPtr(h);
  914. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  915. return rc;
  916. if((rc = cmJsonIntValue(rp,retValPtr)) != kOkJsRC )
  917. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"bool");
  918. return rc;
  919. }
  920. cmJsRC_t cmJsonPathToUInt( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, unsigned* retValPtr )
  921. {
  922. const cmJsonNode_t* rp;
  923. cmJsRC_t rc = kOkJsRC;
  924. cmJs_t* p = _cmJsonHandleToPtr(h);
  925. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  926. return rc;
  927. if((rc = cmJsonUIntValue(rp,retValPtr)) != kOkJsRC )
  928. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"unsigned integer");
  929. return rc;
  930. }
  931. cmJsRC_t cmJsonPathToReal( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, double* retValPtr )
  932. {
  933. const cmJsonNode_t* rp;
  934. cmJsRC_t rc = kOkJsRC;
  935. cmJs_t* p = _cmJsonHandleToPtr(h);
  936. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  937. return rc;
  938. if((rc = cmJsonRealValue(rp,retValPtr)) != kOkJsRC )
  939. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"real");
  940. return rc;
  941. }
  942. cmJsRC_t cmJsonPathToString( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, const char** retValPtr )
  943. {
  944. const cmJsonNode_t* rp = NULL;
  945. cmJsRC_t rc = kOkJsRC;
  946. cmJs_t* p = _cmJsonHandleToPtr(h);
  947. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  948. return rc;
  949. if((rc = cmJsonStringValue(rp,retValPtr)) != kOkJsRC )
  950. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"string");
  951. return rc;
  952. }
  953. cmJsRC_t cmJsonPathToPair( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
  954. {
  955. const cmJsonNode_t* rp;
  956. cmJsRC_t rc = kOkJsRC;
  957. cmJs_t* p = _cmJsonHandleToPtr(h);
  958. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  959. return rc;
  960. if((rc = cmJsonPairNode(rp,retValPtr)) != kOkJsRC )
  961. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"pair");
  962. return rc;
  963. }
  964. cmJsRC_t cmJsonPathToArray( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
  965. {
  966. const cmJsonNode_t* rp;
  967. cmJsRC_t rc = kOkJsRC;
  968. cmJs_t* p = _cmJsonHandleToPtr(h);
  969. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  970. return rc;
  971. if((rc = cmJsonArrayNode(rp,retValPtr)) != kOkJsRC )
  972. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"array");
  973. return rc;
  974. }
  975. cmJsRC_t cmJsonPathToObject( cmJsonH_t h, const cmJsonNode_t* objectNodePtr, const char* pathPrefix, const char* path, cmJsonNode_t** retValPtr )
  976. {
  977. const cmJsonNode_t* rp;
  978. cmJsRC_t rc = kOkJsRC;
  979. cmJs_t* p = _cmJsonHandleToPtr(h);
  980. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objectNodePtr,&rp)) != kOkJsRC )
  981. return rc;
  982. if((rc = cmJsonObjectNode(rp,retValPtr)) != kOkJsRC )
  983. return _cmJsonPathToValueError(p,rc,pathPrefix,path,"object");
  984. return rc;
  985. }
  986. const cmJsonNode_t* cmJsonFindPathValueC( cmJsonH_t h, const char* path, const cmJsonNode_t* np, unsigned typeIdMask )
  987. {
  988. cmJs_t* p = _cmJsonHandleToPtr(h);
  989. const cmJsonNode_t* rp = NULL;
  990. cmJsRC_t rc = kOkJsRC;
  991. if((rc = _cmJsonFindPathValue(p,NULL,path,np,&rp)) != kOkJsRC )
  992. {
  993. // validate the return type
  994. if( rp != NULL )
  995. if( (typeIdMask!=kInvalidTId) && (typeIdMask & rp->typeId)==0 )
  996. {
  997. cmErrMsg(&p->err,kInvalidNodeTypeJsRC,"The value at the end of the path '%s' did not match the requested type.",cmStringNullGuard(path));
  998. rp = NULL;
  999. }
  1000. }
  1001. return rp;
  1002. }
  1003. cmJsonNode_t* cmJsonFindPathValue( cmJsonH_t h, const char* path, const cmJsonNode_t* np, unsigned typeIdMask )
  1004. { return (cmJsonNode_t*)cmJsonFindPathValueC(h,path,np,typeIdMask ); }
  1005. cmJsRC_t _cmJsonFindMemberValue( const cmJsonNode_t* np, const char* label, unsigned keyTypeId, cmJsonNode_t** npp )
  1006. {
  1007. *npp = NULL;
  1008. // the src node must be an object
  1009. if( np->typeId != kObjectTId )
  1010. return kNodeNotFoundJsRC;
  1011. // for each member pair
  1012. const cmJsonNode_t* cnp = np->u.childPtr;
  1013. while( cnp != NULL )
  1014. {
  1015. assert( (cnp->typeId & kMaskTId) == kPairTId );
  1016. // if the labels match ...
  1017. if( strcmp( label, cmJsonPairLabel(cnp)) == 0 )
  1018. {
  1019. // ... and the type flags match ...
  1020. if( (keyTypeId==kInvalidTId || cmIsFlag(cnp->u.childPtr->siblingPtr->typeId,keyTypeId) ) )
  1021. {
  1022. *npp = cnp->u.childPtr->siblingPtr;
  1023. return kOkJsRC; // ... then the key was found.
  1024. }
  1025. // ... label match but wrong type ... this is considered an error
  1026. return kNodeCannotCvtJsRC;
  1027. }
  1028. cnp = cnp->siblingPtr;
  1029. }
  1030. return kNodeNotFoundJsRC;
  1031. }
  1032. cmJsRC_t cmJsonUIntValue( const cmJsonNode_t* vp, unsigned* retPtr )
  1033. {
  1034. cmJsRC_t rc = kOkJsRC;
  1035. if( vp == NULL )
  1036. return kNodeCannotCvtJsRC;
  1037. switch(vp->typeId)
  1038. {
  1039. case kIntTId: *retPtr = vp->u.intVal; break;
  1040. case kRealTId: *retPtr = (unsigned)vp->u.realVal; break;
  1041. case kTrueTId: *retPtr = 1; break;
  1042. case kFalseTId: *retPtr = 0; break;
  1043. default:
  1044. rc = kNodeCannotCvtJsRC;
  1045. }
  1046. return rc;
  1047. }
  1048. cmJsRC_t cmJsonIntValue( const cmJsonNode_t* vp, int* retPtr )
  1049. {
  1050. cmJsRC_t rc = kOkJsRC;
  1051. if( vp == NULL )
  1052. return kNodeCannotCvtJsRC;
  1053. switch(vp->typeId)
  1054. {
  1055. case kIntTId: *retPtr = vp->u.intVal; break;
  1056. case kRealTId: *retPtr = (int)vp->u.realVal; break;
  1057. case kTrueTId: *retPtr = 1; break;
  1058. case kFalseTId: *retPtr = 0; break;
  1059. default:
  1060. rc = kNodeCannotCvtJsRC;
  1061. }
  1062. return rc;
  1063. }
  1064. cmJsRC_t cmJsonRealValue( const cmJsonNode_t* vp, double* retPtr )
  1065. {
  1066. cmJsRC_t rc = kOkJsRC;
  1067. if( vp == NULL )
  1068. return kNodeCannotCvtJsRC;
  1069. switch(vp->typeId)
  1070. {
  1071. case kIntTId: *retPtr = vp->u.intVal; break;
  1072. case kRealTId: *retPtr = vp->u.realVal; break;
  1073. case kTrueTId: *retPtr = 1; break;
  1074. case kFalseTId: *retPtr = 0; break;
  1075. default:
  1076. rc = kNodeCannotCvtJsRC;
  1077. }
  1078. return rc;
  1079. }
  1080. cmJsRC_t cmJsonBoolValue( const cmJsonNode_t* vp, bool* retPtr )
  1081. {
  1082. cmJsRC_t rc = kOkJsRC;
  1083. if( vp == NULL )
  1084. return kNodeCannotCvtJsRC;
  1085. switch(vp->typeId)
  1086. {
  1087. case kIntTId: *retPtr = vp->u.intVal != 0; break;
  1088. case kRealTId: *retPtr = (int)vp->u.realVal != 0; break;
  1089. case kTrueTId: *retPtr = 1; break;
  1090. case kFalseTId: *retPtr = 0; break;
  1091. default:
  1092. rc = kNodeCannotCvtJsRC;
  1093. }
  1094. return rc;
  1095. }
  1096. cmJsRC_t cmJsonStringValue( const cmJsonNode_t* vp, const char **retPtrPtr )
  1097. {
  1098. cmJsRC_t rc = kOkJsRC;
  1099. if( vp == NULL || vp->typeId != kStringTId )
  1100. return kNodeCannotCvtJsRC;
  1101. *retPtrPtr = vp->u.stringVal;
  1102. return rc;
  1103. }
  1104. cmJsRC_t cmJsonPairNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
  1105. {
  1106. cmJsRC_t rc = kOkJsRC;
  1107. if( !cmJsonIsPair(vp) )
  1108. return kNodeCannotCvtJsRC;
  1109. *retPtrPtr = (cmJsonNode_t*)vp;
  1110. return rc;
  1111. }
  1112. cmJsRC_t cmJsonArrayNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
  1113. {
  1114. cmJsRC_t rc = kOkJsRC;
  1115. if( !cmJsonIsArray(vp) )
  1116. return kNodeCannotCvtJsRC;
  1117. *retPtrPtr = (cmJsonNode_t*)vp;
  1118. return rc;
  1119. }
  1120. cmJsRC_t cmJsonObjectNode( const cmJsonNode_t* vp, cmJsonNode_t **retPtrPtr )
  1121. {
  1122. cmJsRC_t rc = kOkJsRC;
  1123. if( !cmJsonIsObject(vp) )
  1124. return kNodeCannotCvtJsRC;
  1125. *retPtrPtr = (cmJsonNode_t*)vp;
  1126. return rc;
  1127. }
  1128. cmJsRC_t cmJsonUIntMember( const cmJsonNode_t* np, const char* label, unsigned* retPtr )
  1129. {
  1130. cmJsonNode_t* vp;
  1131. cmJsRC_t rc;
  1132. if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
  1133. return rc;
  1134. return cmJsonUIntValue(vp,retPtr);
  1135. }
  1136. cmJsRC_t cmJsonIntMember( const cmJsonNode_t* np, const char* label, int* retPtr )
  1137. {
  1138. cmJsonNode_t* vp;
  1139. cmJsRC_t rc;
  1140. if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
  1141. return rc;
  1142. return cmJsonIntValue(vp,retPtr);
  1143. }
  1144. cmJsRC_t cmJsonRealMember( const cmJsonNode_t* np, const char* label, double* retPtr )
  1145. {
  1146. cmJsonNode_t* vp;
  1147. cmJsRC_t rc;
  1148. if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
  1149. return rc;
  1150. return cmJsonRealValue(vp,retPtr);
  1151. }
  1152. cmJsRC_t cmJsonBoolMember( const cmJsonNode_t* np, const char* label, bool* retPtr )
  1153. {
  1154. cmJsonNode_t* vp;
  1155. cmJsRC_t rc;
  1156. if((rc = _cmJsonFindMemberValue(np,label,kNumericTId,&vp)) != kOkJsRC )
  1157. return rc;
  1158. return cmJsonBoolValue(vp,retPtr);
  1159. }
  1160. cmJsRC_t cmJsonStringMember( const cmJsonNode_t* np, const char* label, const char** retPtrPtr )
  1161. {
  1162. cmJsonNode_t* vp;
  1163. cmJsRC_t rc;
  1164. *retPtrPtr = NULL;
  1165. if((rc = _cmJsonFindMemberValue(np,label,kStringTId,&vp)) != kOkJsRC )
  1166. return rc;
  1167. return cmJsonStringValue(vp,retPtrPtr);
  1168. }
  1169. cmJsRC_t cmJsonNodeMember( const cmJsonNode_t* np, const char* label, cmJsonNode_t** retPtrPtr )
  1170. {
  1171. cmJsonNode_t* vp;
  1172. cmJsRC_t rc;
  1173. *retPtrPtr = NULL;
  1174. if((rc = _cmJsonFindMemberValue(np,label,kArrayTId|kObjectTId,&vp)) != kOkJsRC )
  1175. return rc;
  1176. *retPtrPtr = vp;
  1177. return rc;
  1178. }
  1179. cmJsonNode_t* cmJsonNodeMemberValue( const cmJsonNode_t* np, const char* label )
  1180. {
  1181. assert( cmJsonIsObject(np) );
  1182. unsigned n = cmJsonChildCount(np);
  1183. unsigned j = 0;
  1184. for(; j<n; ++j)
  1185. {
  1186. const cmJsonNode_t* cnp = cmJsonArrayElementC(np,j);
  1187. assert( cnp != NULL && cmJsonIsPair(cnp) );
  1188. if( strcmp(label,cmJsonPairLabel(cnp))==0 )
  1189. return cmJsonPairValue((cmJsonNode_t*)cnp);
  1190. }
  1191. return NULL;
  1192. }
  1193. cmJsRC_t cmJsonVMemberValues( const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, va_list vl )
  1194. {
  1195. unsigned typeId;
  1196. cmJsRC_t rc = kOkJsRC;
  1197. if( errLabelPtrPtr != NULL )
  1198. *errLabelPtrPtr = NULL;
  1199. const char* label;
  1200. while( ((label = va_arg(vl,const char*)) != NULL) && (rc==kOkJsRC) )
  1201. {
  1202. typeId = va_arg(vl,unsigned);
  1203. switch( typeId & kMaskTId )
  1204. {
  1205. case kObjectTId:
  1206. case kPairTId:
  1207. case kArrayTId:
  1208. {
  1209. cmJsonNode_t** nodePtrPtr = va_arg(vl, cmJsonNode_t**);
  1210. if((rc = cmJsonNodeMember(objectNodePtr,label,nodePtrPtr )) == kOkJsRC )
  1211. {
  1212. cmJsonNode_t* np = *nodePtrPtr;
  1213. if( (np->typeId & kMaskTId) != (typeId&kMaskTId) )
  1214. rc = kNodeCannotCvtJsRC;
  1215. }
  1216. }
  1217. break;
  1218. case kIntTId:
  1219. {
  1220. int* ip = va_arg(vl, int* );
  1221. assert(ip != NULL);
  1222. rc = cmJsonIntMember(objectNodePtr, label, ip);
  1223. }
  1224. break;
  1225. case kRealTId:
  1226. {
  1227. double* dp = va_arg(vl, double*);
  1228. assert(dp != NULL);
  1229. rc = cmJsonRealMember(objectNodePtr, label, dp);
  1230. }
  1231. break;
  1232. case kStringTId:
  1233. {
  1234. const char** cpp = va_arg(vl, const char**);
  1235. assert(cpp != NULL);
  1236. rc = cmJsonStringMember(objectNodePtr, label, cpp);
  1237. }
  1238. break;
  1239. case kTrueTId:
  1240. case kFalseTId:
  1241. case kBoolTId:
  1242. {
  1243. bool* bp = va_arg(vl, bool* );
  1244. rc = cmJsonBoolMember(objectNodePtr, label, bp);
  1245. }
  1246. break;
  1247. default:
  1248. // missing terminating NULL on the var args list???
  1249. assert(0);
  1250. break;
  1251. }
  1252. if( (rc == kNodeNotFoundJsRC) && cmIsFlag(typeId,kOptArgJsFl) )
  1253. rc = kOkJsRC;
  1254. if( rc != kOkJsRC && errLabelPtrPtr != NULL )
  1255. *errLabelPtrPtr = label;
  1256. }
  1257. return rc;
  1258. }
  1259. cmJsRC_t cmJsonMemberValues( const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ...)
  1260. {
  1261. va_list vl;
  1262. va_start(vl,errLabelPtrPtr);
  1263. cmJsRC_t rc = cmJsonVMemberValues(objectNodePtr,errLabelPtrPtr,vl);
  1264. va_end(vl);
  1265. return rc;
  1266. }
  1267. cmJsRC_t cmJsonVPathValues( cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objNodePtr, const char** errLabelPtrPtr, va_list vl )
  1268. {
  1269. cmJsRC_t rc = kOkJsRC;
  1270. cmJs_t* p = _cmJsonHandleToPtr(h);
  1271. if( errLabelPtrPtr != NULL )
  1272. *errLabelPtrPtr = NULL;
  1273. const char* path;
  1274. while( ((path = va_arg(vl,const char*)) != NULL) && (rc==kOkJsRC) )
  1275. {
  1276. unsigned typeId;
  1277. const cmJsonNode_t* vnp;
  1278. typeId = va_arg(vl,unsigned);
  1279. // find the requested pair value
  1280. if((rc = _cmJsonFindPathValue(p,pathPrefix,path,objNodePtr,&vnp)) != kOkJsRC )
  1281. break;
  1282. switch( typeId & kMaskTId )
  1283. {
  1284. case kObjectTId:
  1285. case kPairTId:
  1286. case kArrayTId:
  1287. {
  1288. const cmJsonNode_t** nodePtrPtr = va_arg(vl, const cmJsonNode_t**);
  1289. if( (vnp->typeId & kMaskTId) != (typeId & kMaskTId) )
  1290. rc = kNodeCannotCvtJsRC;
  1291. else
  1292. *nodePtrPtr = vnp;
  1293. }
  1294. break;
  1295. case kIntTId:
  1296. {
  1297. int* ip = va_arg(vl, int* );
  1298. assert(ip != NULL);
  1299. rc = cmJsonIntValue(vnp, ip);
  1300. }
  1301. break;
  1302. case kRealTId:
  1303. {
  1304. double* dp = va_arg(vl, double*);
  1305. assert(dp != NULL);
  1306. rc = cmJsonRealValue(vnp, dp);
  1307. }
  1308. break;
  1309. case kStringTId:
  1310. {
  1311. const char** cpp = va_arg(vl, const char**);
  1312. assert(cpp != NULL);
  1313. rc = cmJsonStringValue(vnp, cpp);
  1314. }
  1315. break;
  1316. case kTrueTId:
  1317. case kFalseTId:
  1318. {
  1319. bool* bp = va_arg(vl, bool* );
  1320. rc = cmJsonBoolValue(vnp, bp);
  1321. }
  1322. break;
  1323. default:
  1324. // missing terminating NULL on the var args list???
  1325. assert(0);
  1326. break;
  1327. }
  1328. if( (rc == kNodeNotFoundJsRC) && cmIsFlag(typeId,kOptArgJsFl) )
  1329. rc = kOkJsRC;
  1330. if( rc != kOkJsRC && errLabelPtrPtr != NULL )
  1331. *errLabelPtrPtr = path;
  1332. }
  1333. return rc;
  1334. }
  1335. cmJsRC_t cmJsonPathValues( cmJsonH_t h, const char* pathPrefix, const cmJsonNode_t* objectNodePtr, const char** errLabelPtrPtr, ... )
  1336. {
  1337. va_list vl;
  1338. va_start(vl,errLabelPtrPtr);
  1339. cmJsRC_t rc = cmJsonVPathValues(h,pathPrefix,objectNodePtr,errLabelPtrPtr,vl);
  1340. va_end(vl);
  1341. return rc;
  1342. }
  1343. cmJsonNode_t* _cmJsonCreateNode2( cmJsonH_t h, unsigned newNodeTypeId, cmJsonNode_t* parentPtr )
  1344. {
  1345. cmJs_t* p = _cmJsonHandleToPtr(h);
  1346. cmJsonNode_t* np = NULL;
  1347. if((p->rc = _cmJsonCreateNode(p,parentPtr,newNodeTypeId,&np)) != kOkJsRC )
  1348. return NULL;
  1349. return np;
  1350. }
  1351. cmJsRC_t cmJsonCreate( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned typeId, const char* sv, int iv, double dv, cmJsonNode_t** rpp )
  1352. {
  1353. cmJsonNode_t* rp = NULL;
  1354. cmJsRC_t rc = kOkJsRC;
  1355. cmJs_t* p = _cmJsonHandleToPtr(h);
  1356. if( rpp != NULL )
  1357. *rpp = NULL;
  1358. switch( typeId )
  1359. {
  1360. case kObjectTId:
  1361. case kArrayTId:
  1362. if((rp = _cmJsonCreateNode2(h,typeId,parentPtr)) == NULL)
  1363. rc = p->rc;
  1364. else
  1365. {
  1366. if( rpp != NULL )
  1367. *rpp = rp;
  1368. }
  1369. break;
  1370. case kPairTId: rc = _cmJsonCreatePair(p,parentPtr,sv,rpp); break;
  1371. case kIntTId: rc = _cmJsonCreateInt(p,parentPtr,iv,rpp); break;
  1372. case kRealTId: rc = _cmJsonCreateReal(p,parentPtr,dv,rpp); break;
  1373. case kTrueTId: rc = _cmJsonCreateBool(p,parentPtr,true,rpp); break;
  1374. case kFalseTId: rc = _cmJsonCreateBool(p,parentPtr,false,rpp); break;
  1375. case kNullTId: rc = _cmJsonCreateNull(p,parentPtr,rpp); break;
  1376. case kStringTId: rc = _cmJsonCreateString(p,parentPtr,sv,strlen(sv),rpp); break;
  1377. default:
  1378. assert(0);
  1379. break;
  1380. }
  1381. return rc;
  1382. }
  1383. cmJsonNode_t* cmJsonCreateObject( cmJsonH_t h, cmJsonNode_t* parentPtr )
  1384. { return _cmJsonCreateNode2(h,kObjectTId,parentPtr); }
  1385. cmJsonNode_t* cmJsonCreateArray( cmJsonH_t h, cmJsonNode_t* parentPtr )
  1386. { return _cmJsonCreateNode2(h,kArrayTId,parentPtr); }
  1387. cmJsonNode_t* cmJsonCreatePair( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* label )
  1388. {
  1389. cmJsonNode_t* np;
  1390. cmJs_t* p = _cmJsonHandleToPtr(h);
  1391. if((_cmJsonCreatePair(p,parentPtr,label,&np)) != kOkJsRC )
  1392. return NULL;
  1393. return np;
  1394. }
  1395. cmJsRC_t cmJsonCreateString( cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue )
  1396. {
  1397. cmJs_t* p = _cmJsonHandleToPtr(h);
  1398. return _cmJsonCreateString( p, parentPtr, stringValue, strlen(stringValue),NULL);;
  1399. }
  1400. cmJsRC_t cmJsonCreateStringN(cmJsonH_t h, cmJsonNode_t* parentPtr, const char* stringValue, unsigned stringCharCnt )
  1401. {
  1402. cmJs_t* p = _cmJsonHandleToPtr(h);
  1403. return _cmJsonCreateString( p, parentPtr, stringValue, stringCharCnt,NULL);;
  1404. }
  1405. cmJsRC_t cmJsonCreateInt( cmJsonH_t h, cmJsonNode_t* parentPtr, int value )
  1406. {
  1407. cmJs_t* p = _cmJsonHandleToPtr(h);
  1408. return _cmJsonCreateInt( p, parentPtr, value, NULL );
  1409. }
  1410. cmJsRC_t cmJsonCreateReal( cmJsonH_t h, cmJsonNode_t* parentPtr, double value )
  1411. {
  1412. cmJs_t* p = _cmJsonHandleToPtr(h);
  1413. return _cmJsonCreateReal( p, parentPtr, value, NULL );
  1414. }
  1415. cmJsRC_t cmJsonCreateBool( cmJsonH_t h, cmJsonNode_t* parentPtr, bool value )
  1416. {
  1417. cmJs_t* p = _cmJsonHandleToPtr(h);
  1418. return _cmJsonCreateBool( p, parentPtr, value,NULL );
  1419. }
  1420. cmJsRC_t cmJsonCreateNull( cmJsonH_t h, cmJsonNode_t* parentPtr )
  1421. {
  1422. cmJs_t* p = _cmJsonHandleToPtr(h);
  1423. return _cmJsonCreateNull( p, parentPtr, NULL );
  1424. }
  1425. cmJsRC_t cmJsonCreateStringArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const char** value )
  1426. {
  1427. cmJs_t* p = _cmJsonHandleToPtr(h);
  1428. cmJsRC_t rc = kOkJsRC;
  1429. cmJsonNode_t* np;
  1430. unsigned i;
  1431. if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
  1432. return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'bool' array.");
  1433. for(i=0; i<n; ++i)
  1434. if((rc = cmJsonCreateString(h,np,value[i])) != kOkJsRC )
  1435. return _cmJsonError(p,rc,"Unable to create 'bool' array element at index %i.",i);
  1436. return rc;
  1437. }
  1438. cmJsRC_t cmJsonCreateIntArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const int* value )
  1439. {
  1440. cmJs_t* p = _cmJsonHandleToPtr(h);
  1441. cmJsRC_t rc = kOkJsRC;
  1442. cmJsonNode_t* np;
  1443. unsigned i;
  1444. if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
  1445. return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'int' array.");
  1446. for(i=0; i<n; ++i)
  1447. if((rc = cmJsonCreateInt(h,np,value[i])) != kOkJsRC )
  1448. return _cmJsonError(p,rc,"Unable to create 'int' array element at index %i.",i);
  1449. return rc;
  1450. }
  1451. cmJsRC_t cmJsonCreateRealArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const double* value )
  1452. {
  1453. cmJs_t* p = _cmJsonHandleToPtr(h);
  1454. cmJsRC_t rc = kOkJsRC;
  1455. cmJsonNode_t* np;
  1456. unsigned i;
  1457. if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
  1458. return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'real' array.");
  1459. for(i=0; i<n; ++i)
  1460. if((rc = cmJsonCreateReal(h,np,value[i])) != kOkJsRC )
  1461. return _cmJsonError(p,rc,"Unable to create 'real' array element at index %i.",i);
  1462. return rc;
  1463. }
  1464. cmJsRC_t cmJsonCreateBoolArray( cmJsonH_t h, cmJsonNode_t* parentPtr, unsigned n, const bool* value )
  1465. {
  1466. cmJs_t* p = _cmJsonHandleToPtr(h);
  1467. cmJsRC_t rc = kOkJsRC;
  1468. cmJsonNode_t* np;
  1469. unsigned i;
  1470. if((np = cmJsonCreateArray(h,parentPtr)) == NULL )
  1471. return _cmJsonError(p,cmErrLastRC(&p->err),"Unable to create 'bool' array.");
  1472. for(i=0; i<n; ++i)
  1473. if((rc = cmJsonCreateBool(h,np,value[i])) != kOkJsRC )
  1474. return _cmJsonError(p,rc,"Unable to create 'bool' array element at index %i.",i);
  1475. return rc;
  1476. }
  1477. cmJsRC_t cmJsonSetInt( cmJsonH_t h, cmJsonNode_t* np, int ival )
  1478. {
  1479. if( np->typeId != kIntTId )
  1480. return _cmJsonError(_cmJsonHandleToPtr(h),kInvalidNodeTypeJsRC,"Cannot assign type 'int' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
  1481. np->u.intVal = ival;
  1482. return kOkJsRC;
  1483. }
  1484. cmJsRC_t cmJsonSetReal( cmJsonH_t h, cmJsonNode_t * np, double rval )
  1485. {
  1486. if( np->typeId != kRealTId )
  1487. return _cmJsonError(_cmJsonHandleToPtr(h),kInvalidNodeTypeJsRC,"Cannot assign type 'real' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
  1488. np->u.realVal = rval;
  1489. return kOkJsRC;
  1490. }
  1491. cmJsRC_t cmJsonSetBool( cmJsonH_t h, cmJsonNode_t * np, bool bval )
  1492. {
  1493. if( np->typeId == kTrueTId || np->typeId==kFalseTId )
  1494. return _cmJsonError(_cmJsonHandleToPtr(h),kInvalidNodeTypeJsRC,"Cannot assign type 'bool' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
  1495. np->u.boolVal = bval;
  1496. return kOkJsRC;
  1497. }
  1498. cmJsRC_t cmJsonSetString( cmJsonH_t h, cmJsonNode_t* np, const char* sval )
  1499. {
  1500. cmJs_t* p = _cmJsonHandleToPtr(h);
  1501. if( np->typeId != kStringTId )
  1502. return _cmJsonError(p,kInvalidNodeTypeJsRC,"Cannot assign type 'string' to node type '%s'.",_cmJsonNodeTypeIdToLabel(np->typeId));
  1503. unsigned sn = strlen(sval);
  1504. if( np->u.stringVal != NULL && strlen(np->u.stringVal) <= sn )
  1505. strcpy(np->u.stringVal,sval);
  1506. else
  1507. return _cmJsonSetString(p,np,sval,sn);
  1508. return kOkJsRC;
  1509. }
  1510. cmJsonNode_t* cmJsonInsertPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned typeId, const char* sv, int iv, double dv )
  1511. {
  1512. assert( objectNodePtr->typeId == kObjectTId );
  1513. cmJsRC_t rc;
  1514. cmJsonNode_t* pairNodePtr;
  1515. cmJs_t* p = _cmJsonHandleToPtr(h);
  1516. if((rc = _cmJsonCreatePair(p,objectNodePtr,label,&pairNodePtr)) != kOkJsRC )
  1517. return NULL;
  1518. assert( pairNodePtr != NULL );
  1519. if((rc = cmJsonCreate(h,pairNodePtr,typeId,sv,iv,dv,NULL)) != kOkJsRC )
  1520. return NULL;
  1521. return pairNodePtr;
  1522. }
  1523. cmJsonNode_t* cmJsonInsertPairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
  1524. {
  1525. assert( objectNodePtr->typeId == kObjectTId );
  1526. cmJsonNode_t* pairNodePtr;
  1527. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1528. return NULL;
  1529. return cmJsonCreateObject(h,pairNodePtr);
  1530. }
  1531. cmJsonNode_t* cmJsonInsertPairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
  1532. {
  1533. assert( objectNodePtr->typeId == kObjectTId );
  1534. cmJsonNode_t* pairNodePtr;
  1535. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1536. return NULL;
  1537. return cmJsonCreateArray(h,pairNodePtr);
  1538. }
  1539. cmJsonNode_t* cmJsonInsertPairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* pairLabel )
  1540. {
  1541. assert( objectNodePtr->typeId == kObjectTId );
  1542. cmJsonNode_t* pairNodePtr;
  1543. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1544. return NULL;
  1545. return cmJsonCreatePair(h,pairNodePtr,pairLabel);
  1546. }
  1547. cmJsRC_t cmJsonInsertPairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, int intVal )
  1548. {
  1549. assert( objectNodePtr->typeId == kObjectTId );
  1550. cmJsonNode_t* pairNodePtr;
  1551. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1552. return cmJsonErrorCode(h);
  1553. return cmJsonCreateInt(h,pairNodePtr,intVal);
  1554. }
  1555. cmJsRC_t cmJsonInsertPairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, double realVal )
  1556. {
  1557. assert( objectNodePtr->typeId == kObjectTId );
  1558. cmJsonNode_t* pairNodePtr;
  1559. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1560. return cmJsonErrorCode(h);
  1561. return cmJsonCreateReal(h,pairNodePtr,realVal);
  1562. }
  1563. cmJsRC_t cmJsonInsertPairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* stringVal )
  1564. { return cmJsonInsertPairStringN(h,objectNodePtr,label,stringVal,stringVal==NULL ? 0 : strlen(stringVal)); }
  1565. cmJsRC_t cmJsonInsertPairStringN( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, const char* stringVal, unsigned stringCharCnt )
  1566. {
  1567. assert( objectNodePtr->typeId == kObjectTId );
  1568. cmJsonNode_t* pairNodePtr;
  1569. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1570. return cmJsonErrorCode(h);
  1571. return cmJsonCreateStringN(h,pairNodePtr,stringVal,stringCharCnt);
  1572. }
  1573. cmJsRC_t cmJsonInsertPairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, bool boolVal )
  1574. {
  1575. assert( objectNodePtr->typeId == kObjectTId );
  1576. cmJsonNode_t* pairNodePtr;
  1577. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1578. return cmJsonErrorCode(h);
  1579. return cmJsonCreateBool(h,pairNodePtr,boolVal);
  1580. }
  1581. cmJsRC_t cmJsonInsertPairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label )
  1582. {
  1583. assert( objectNodePtr->typeId == kObjectTId );
  1584. cmJsonNode_t* pairNodePtr;
  1585. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1586. return cmJsonErrorCode(h);
  1587. return cmJsonCreateNull(h,pairNodePtr);
  1588. }
  1589. cmJsRC_t cmJsonInsertPairIntArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values )
  1590. {
  1591. assert( objectNodePtr->typeId == kObjectTId );
  1592. cmJsonNode_t* pairNodePtr;
  1593. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1594. return cmJsonErrorCode(h);
  1595. return cmJsonCreateIntArray(h,pairNodePtr,n,values);
  1596. }
  1597. cmJsRC_t cmJsonInsertPairRealArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values )
  1598. {
  1599. assert( objectNodePtr->typeId == kObjectTId );
  1600. cmJsonNode_t* pairNodePtr;
  1601. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1602. return cmJsonErrorCode(h);
  1603. return cmJsonCreateRealArray(h,pairNodePtr,n,values);
  1604. }
  1605. cmJsRC_t cmJsonInsertPairStringArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values )
  1606. {
  1607. assert( objectNodePtr->typeId == kObjectTId );
  1608. cmJsonNode_t* pairNodePtr;
  1609. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1610. return cmJsonErrorCode(h);
  1611. return cmJsonCreateStringArray(h,pairNodePtr,n,values);
  1612. }
  1613. cmJsRC_t cmJsonInsertPairBoolArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values )
  1614. {
  1615. assert( objectNodePtr->typeId == kObjectTId );
  1616. cmJsonNode_t* pairNodePtr;
  1617. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) == NULL )
  1618. return cmJsonErrorCode(h);
  1619. return cmJsonCreateBoolArray(h,pairNodePtr,n,values);
  1620. }
  1621. cmJsonNode_t* cmJsonInsertPairIntArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const int* values )
  1622. {
  1623. assert( objectNodePtr->typeId == kObjectTId );
  1624. cmJsonNode_t* pairNodePtr;
  1625. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
  1626. if( cmJsonCreateIntArray(h,pairNodePtr,n,values) != kOkJsRC )
  1627. return NULL;
  1628. return pairNodePtr;
  1629. }
  1630. cmJsonNode_t* cmJsonInsertPairRealArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const double* values )
  1631. {
  1632. assert( objectNodePtr->typeId == kObjectTId );
  1633. cmJsonNode_t* pairNodePtr;
  1634. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
  1635. if( cmJsonCreateRealArray(h,pairNodePtr,n,values) != kOkJsRC )
  1636. return NULL;
  1637. return pairNodePtr;
  1638. }
  1639. cmJsonNode_t* cmJsonInsertPairStringArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const char** values )
  1640. {
  1641. assert( objectNodePtr->typeId == kObjectTId );
  1642. cmJsonNode_t* pairNodePtr;
  1643. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
  1644. if( cmJsonCreateStringArray(h,pairNodePtr,n,values) != kOkJsRC )
  1645. return NULL;
  1646. return pairNodePtr;
  1647. }
  1648. cmJsonNode_t* cmJsonInsertPairBoolArray2( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned n, const bool* values )
  1649. {
  1650. assert( objectNodePtr->typeId == kObjectTId );
  1651. cmJsonNode_t* pairNodePtr;
  1652. if((pairNodePtr = cmJsonCreatePair(h,objectNodePtr,label)) != NULL )
  1653. if( cmJsonCreateBoolArray(h,pairNodePtr,n,values) != kOkJsRC )
  1654. return NULL;
  1655. return pairNodePtr;
  1656. }
  1657. cmJsRC_t _cmJsonInsertOrReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned newTypeId, const char* sv, int iv, double dv, cmJsonNode_t* nv, bool insertFl, cmJsonNode_t** retNodePtrPtr )
  1658. {
  1659. cmJsRC_t rc = kOkJsRC;
  1660. cmJs_t* p = _cmJsonHandleToPtr(h);
  1661. cmJsonNode_t* valNodePtr = NULL;
  1662. cmJsonNode_t* pairNodePtr = NULL;
  1663. assert( objectNodePtr->typeId == kObjectTId );
  1664. if( retNodePtrPtr != NULL )
  1665. *retNodePtrPtr = NULL;
  1666. // if a matching pair was not found ....
  1667. if(( valNodePtr = cmJsonFindValue(h,label,objectNodePtr,matchTypeMask)) == NULL )
  1668. {
  1669. // ... and insertion is not allowed then return error
  1670. if( insertFl == false )
  1671. return kNodeNotFoundJsRC;
  1672. // ... otherwise insert a new pair and return a pointer to it
  1673. pairNodePtr = cmJsonInsertPair(h,objectNodePtr,label,newTypeId,sv,iv,dv);
  1674. goto errLabel;
  1675. }
  1676. // ... otherwise a match was found to at least the pair label.
  1677. // If matchTypeMask was set to kInvalidTId then the type id
  1678. // of the found pair may not be the same as newTypeId. To handle
  1679. // this case we proceed by first deallocating all resources held
  1680. // by the found node and then proceeding by either creating
  1681. // deleting the found node and creating a replacement node
  1682. // (object,array,pair) or forcing the found node to a new
  1683. // type (int,real,true,false,string,null).
  1684. assert( valNodePtr != NULL);
  1685. pairNodePtr = valNodePtr->ownerPtr;
  1686. // release any resources held by the found node
  1687. switch( valNodePtr->typeId )
  1688. {
  1689. case kObjectTId:
  1690. case kArrayTId:
  1691. case kPairTId:
  1692. // remove the pair value node and replace it with a 'null' node.
  1693. if((rc =_cmJsonRemoveNode( p, valNodePtr, true, true )) != kOkJsRC )
  1694. goto errLabel;
  1695. break;
  1696. case kStringTId:
  1697. // deallocate string memory
  1698. _cmJsonSetString( p, valNodePtr, NULL, 0 );
  1699. break;
  1700. }
  1701. // relace the found node with the new node
  1702. switch( newTypeId )
  1703. {
  1704. case kObjectTId:
  1705. case kArrayTId:
  1706. case kPairTId:
  1707. {
  1708. cmJsonNode_t* newValueNodePtr = NULL;
  1709. // remove the current pair value ....
  1710. if((rc =_cmJsonRemoveNode( p, valNodePtr, true, false )) != kOkJsRC )
  1711. goto errLabel;
  1712. // new pair nodes should have the pair label in 'sv'
  1713. assert( newTypeId!=kPairTId || (newTypeId==kPairTId && sv != NULL ));
  1714. // if no new value was given or the new value is a pair then ...
  1715. if( nv == NULL || newTypeId == kPairTId )
  1716. {
  1717. // ... create a new blank array,obj or pair
  1718. if((rc = cmJsonCreate( h, pairNodePtr, newTypeId, sv, 0, 0, &newValueNodePtr )) != kOkJsRC )
  1719. goto errLabel;
  1720. }
  1721. // if the new value is a pair and no value node was given then set the
  1722. // new pairs value node to NULL
  1723. if( nv == NULL && newTypeId == kPairTId )
  1724. {
  1725. if((rc = _cmJsonCreateNull(p,newValueNodePtr,NULL)) != kOkJsRC )
  1726. goto errLabel;
  1727. }
  1728. // if a new value node was given
  1729. if( nv != NULL )
  1730. {
  1731. // the new child node should not already be linked to a parent
  1732. assert( nv->ownerPtr == NULL );
  1733. // if the new value is an obj or array then the new
  1734. // value node type id should be the same
  1735. assert( newTypeId==kPairTId || newTypeId==nv->typeId );
  1736. //
  1737. cmJsonNode_t* pp = newTypeId==kPairTId ? newValueNodePtr : pairNodePtr;
  1738. assert( pp->typeId == kPairTId );
  1739. // link in the child to the pair
  1740. if((rc = _cmJsonLinkInChild(p,pp,nv)) != kOkJsRC )
  1741. goto errLabel;
  1742. }
  1743. }
  1744. break;
  1745. // All cases below follow the same pattern:
  1746. // 1. Set the type id to the replacement value type id
  1747. // 2. Assign the value to the node.
  1748. // This sequence is safe because all resources were freed
  1749. // by the earlier switch.
  1750. case kStringTId:
  1751. valNodePtr->typeId = kStringTId;
  1752. _cmJsonSetString( p, valNodePtr, sv, strlen(sv) );
  1753. break;
  1754. case kIntTId:
  1755. valNodePtr->typeId =kIntTId;
  1756. valNodePtr->u.intVal = iv;
  1757. break;
  1758. case kRealTId:
  1759. valNodePtr->typeId = kRealTId;
  1760. valNodePtr->u.realVal = dv;
  1761. break;
  1762. case kTrueTId:
  1763. valNodePtr->typeId = kTrueTId;
  1764. valNodePtr->u.boolVal = true;
  1765. break;
  1766. case kFalseTId:
  1767. valNodePtr->typeId = kFalseTId;
  1768. valNodePtr->u.boolVal = false;
  1769. break;
  1770. case kNullTId:
  1771. valNodePtr->typeId = kNullTId;
  1772. break;
  1773. default:
  1774. { assert(0); }
  1775. }
  1776. errLabel:
  1777. if( rc == kOkJsRC )
  1778. if( retNodePtrPtr != NULL )
  1779. *retNodePtrPtr = pairNodePtr;
  1780. return rc;
  1781. }
  1782. cmJsonNode_t* cmJsonInsertOrReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned typeId, const char* sv, int iv, double dv, cmJsonNode_t* nv )
  1783. {
  1784. cmJsonNode_t* retNodePtr = NULL;
  1785. _cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,typeId,sv,iv,dv,nv,true,&retNodePtr );
  1786. return retNodePtr;
  1787. }
  1788. cmJsonNode_t* cmJsonInsertOrReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newObjNodePtr )
  1789. {
  1790. cmJsonNode_t* pairPtr;
  1791. if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kObjectTId,NULL,0,0,newObjNodePtr)) == NULL )
  1792. return NULL;
  1793. return pairPtr->u.childPtr->siblingPtr;
  1794. }
  1795. cmJsonNode_t* cmJsonInsertOrReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr )
  1796. {
  1797. cmJsonNode_t* pairPtr;
  1798. if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kArrayTId,NULL,0,0,newArrayNodePtr)) == NULL )
  1799. return NULL;
  1800. return pairPtr->u.childPtr->siblingPtr;
  1801. }
  1802. cmJsonNode_t* cmJsonInsertOrReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValNodePtr )
  1803. {
  1804. cmJsonNode_t* pairPtr;
  1805. if((pairPtr = cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kPairTId,newPairLabel,0,0,newPairValNodePtr)) == NULL )
  1806. return NULL;
  1807. return pairPtr->u.childPtr->siblingPtr;
  1808. }
  1809. cmJsRC_t cmJsonInsertOrReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal )
  1810. { return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kIntTId,NULL,intVal,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1811. cmJsRC_t cmJsonInsertOrReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal )
  1812. { return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kRealTId,NULL,0,realVal,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1813. cmJsRC_t cmJsonInsertOrReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* stringVal )
  1814. { return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kStringTId,stringVal,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1815. cmJsRC_t cmJsonInsertOrReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal )
  1816. { return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,boolVal ? kTrueTId : kFalseTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1817. cmJsRC_t cmJsonInsertOrReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask )
  1818. { return cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,kNullTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1819. cmJsonNode_t* cmJsonReplacePair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, unsigned newTypeId, const char* sv, int iv, double dv, cmJsonNode_t* nv )
  1820. {
  1821. cmJsonNode_t* retNodePtr = NULL;
  1822. _cmJsonInsertOrReplacePair(h,objectNodePtr,label,matchTypeMask,newTypeId,sv,iv,dv,nv,false,&retNodePtr );
  1823. return retNodePtr;
  1824. }
  1825. cmJsonNode_t* cmJsonReplacePairObject( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newPairNodePtr )
  1826. {
  1827. cmJsonNode_t* pairPtr;
  1828. if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kObjectTId,NULL,0,0,newPairNodePtr)) == NULL )
  1829. return NULL;
  1830. return pairPtr->u.childPtr->siblingPtr;
  1831. }
  1832. cmJsonNode_t* cmJsonReplacePairArray( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, cmJsonNode_t* newArrayNodePtr )
  1833. {
  1834. cmJsonNode_t* pairPtr;
  1835. if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kArrayTId,NULL,0,0,newArrayNodePtr)) == NULL )
  1836. return NULL;
  1837. return pairPtr->u.childPtr->siblingPtr;
  1838. }
  1839. cmJsonNode_t* cmJsonReplacePairPair( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* newPairLabel, cmJsonNode_t* newPairValNodePtr )
  1840. {
  1841. cmJsonNode_t* pairPtr;
  1842. if((pairPtr = cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kPairTId,newPairLabel,0,0,newPairValNodePtr)) == NULL )
  1843. return NULL;
  1844. return pairPtr->u.childPtr->siblingPtr;
  1845. }
  1846. cmJsRC_t cmJsonReplacePairInt( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, int intVal )
  1847. { return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kIntTId,NULL,intVal,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1848. cmJsRC_t cmJsonReplacePairReal( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, double realVal )
  1849. { return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kRealTId,NULL,0,realVal,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1850. cmJsRC_t cmJsonReplacePairString( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, const char* stringVal )
  1851. { return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kStringTId,stringVal,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1852. cmJsRC_t cmJsonReplacePairBool( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask, bool boolVal )
  1853. { return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,boolVal ? kTrueTId : kFalseTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1854. cmJsRC_t cmJsonReplacePairNull( cmJsonH_t h, cmJsonNode_t* objectNodePtr, const char* label, unsigned matchTypeMask )
  1855. { return cmJsonReplacePair(h,objectNodePtr,label,matchTypeMask,kNullTId,NULL,0,0,NULL) == NULL ? cmJsonErrorCode(h) : kOkJsRC; }
  1856. cmJsRC_t cmJsonVInsertPairs( cmJsonH_t h, cmJsonNode_t* objNodePtr, va_list vl )
  1857. {
  1858. cmJsRC_t rc = kOkJsRC;
  1859. assert( objNodePtr->typeId == kObjectTId );
  1860. const char* label;
  1861. while( ((label = va_arg(vl,const char*)) != NULL) && (rc == kOkJsRC) )
  1862. {
  1863. unsigned sel = va_arg(vl,unsigned);
  1864. switch( sel )
  1865. {
  1866. case kObjectTId:
  1867. if( cmJsonInsertPairObject(h,objNodePtr,label) == NULL )
  1868. rc = cmJsonErrorCode(h);
  1869. break;
  1870. case kArrayTId:
  1871. if( cmJsonInsertPairArray(h,objNodePtr,label) == NULL )
  1872. rc = cmJsonErrorCode(h);
  1873. break;
  1874. case kPairTId:
  1875. if( cmJsonInsertPairPair(h,objNodePtr,label, va_arg(vl,const char*)) == NULL )
  1876. rc = cmJsonErrorCode(h);
  1877. break;
  1878. case kIntTId:
  1879. rc = cmJsonInsertPairInt(h,objNodePtr,label, va_arg(vl,int) );
  1880. break;
  1881. case kRealTId:
  1882. rc = cmJsonInsertPairReal(h,objNodePtr,label, va_arg(vl,double) );
  1883. break;
  1884. case kStringTId:
  1885. rc = cmJsonInsertPairString(h,objNodePtr,label, va_arg(vl,const char *) );
  1886. break;
  1887. case kTrueTId:
  1888. case kFalseTId:
  1889. case kBoolTId:
  1890. rc = cmJsonInsertPairBool(h,objNodePtr,label, va_arg(vl,int) );
  1891. break;
  1892. case kNullTId:
  1893. rc = cmJsonInsertPairNull(h,objNodePtr,label );
  1894. break;
  1895. default:
  1896. // missing terminating NULL on the var args list???
  1897. assert(0);
  1898. break;
  1899. }
  1900. }
  1901. return rc;
  1902. }
  1903. cmJsRC_t cmJsonInsertPairs( cmJsonH_t h, cmJsonNode_t* objectNodePtr, ... )
  1904. {
  1905. va_list vl;
  1906. va_start(vl,objectNodePtr);
  1907. cmJsRC_t rc = cmJsonVInsertPairs(h,objectNodePtr,vl);
  1908. va_end(vl);
  1909. return rc;
  1910. }
  1911. cmJsonNode_t* cmJsonVCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, va_list vl )
  1912. {
  1913. cmJsonNode_t* np;
  1914. if((np = cmJsonCreateObject(h,parentPtr)) == NULL)
  1915. return NULL;
  1916. if( cmJsonVInsertPairs(h,np,vl) != kOkJsRC )
  1917. {
  1918. cmJsonRemoveNode(h,np,true);
  1919. return NULL;
  1920. }
  1921. return np;
  1922. }
  1923. cmJsonNode_t* cmJsonCreateFilledObject( cmJsonH_t h, cmJsonNode_t* parentPtr, ... )
  1924. {
  1925. va_list vl;
  1926. va_start(vl,parentPtr);
  1927. cmJsonNode_t* np = cmJsonVCreateFilledObject(h,parentPtr,vl);
  1928. va_end(vl);
  1929. return np;
  1930. }
  1931. void _cmJsonFreeNode( cmJs_t* p, cmJsonNode_t* np )
  1932. {
  1933. switch( np->typeId )
  1934. {
  1935. case kObjectTId:
  1936. case kPairTId:
  1937. case kArrayTId:
  1938. {
  1939. cmJsonNode_t* cnp = np->u.childPtr;
  1940. while( cnp != NULL )
  1941. {
  1942. cmJsonNode_t* nnp = cnp->siblingPtr;
  1943. _cmJsonFreeNode(p,cnp);
  1944. cnp = nnp;
  1945. }
  1946. }
  1947. break;
  1948. case kStringTId:
  1949. if( np->u.stringVal != NULL )
  1950. cmLHeapFree(p->heapH,np->u.stringVal);
  1951. break;
  1952. }
  1953. cmLHeapFree(p->heapH,np);
  1954. }
  1955. cmJsRC_t _cmJsonRemoveNode( cmJs_t* p, cmJsonNode_t* np, bool freeFl, bool balancePairsFl )
  1956. {
  1957. if(np == NULL )
  1958. return kOkJsRC;
  1959. cmJsonNode_t* parentPtr = np->ownerPtr;
  1960. // if np is the root ...
  1961. if( np == p->rootPtr )
  1962. {
  1963. // ... we only need to set the root to null to remove the node.
  1964. p->rootPtr = NULL;
  1965. }
  1966. else
  1967. {
  1968. if( parentPtr != NULL )
  1969. {
  1970. // get the parents first child
  1971. cmJsonNode_t* cnp = parentPtr->u.childPtr;
  1972. // if np is the first child then make the second child the first child
  1973. if( cnp == np )
  1974. {
  1975. if( parentPtr->typeId == kPairTId )
  1976. return _cmJsonError( p, kCannotRemoveLabelJsRC, "Cannot remove pair label nodes because this would invalidate the tree structure.");
  1977. parentPtr->u.childPtr = cnp->siblingPtr;
  1978. }
  1979. else
  1980. {
  1981. // otherwise unlink it from the child chain
  1982. while( cnp != NULL )
  1983. {
  1984. if( cnp->siblingPtr == np )
  1985. {
  1986. cnp->siblingPtr = np->siblingPtr;
  1987. // if the parent is a pair then the removed node is a
  1988. // 'pair value' which must be replaced with a null node in order
  1989. // to maintain a valid tree.
  1990. if( (parentPtr->typeId == kPairTId) && balancePairsFl)
  1991. _cmJsonCreateNull( p, parentPtr, NULL );
  1992. break;
  1993. }
  1994. cnp = cnp->siblingPtr;
  1995. }
  1996. assert( cnp != NULL );
  1997. }
  1998. }
  1999. }
  2000. // if the memory assoc'd with the removed node should be released
  2001. if( freeFl )
  2002. {
  2003. _cmJsonFreeNode(p,np);
  2004. /*
  2005. if( np->typeId == kStringTId )
  2006. {
  2007. cmLHeapFree(p->heapH,np->u.stringVal);
  2008. np->u.stringVal = NULL;
  2009. }
  2010. cmLHeapFree(p->heapH,np);
  2011. */
  2012. }
  2013. return kOkJsRC;
  2014. }
  2015. cmJsRC_t cmJsonRemoveNode( cmJsonH_t h, cmJsonNode_t* np, bool freeFl )
  2016. {
  2017. cmJs_t* p = _cmJsonHandleToPtr(h);
  2018. return _cmJsonRemoveNode( p, np, freeFl, true );
  2019. }
  2020. cmJsRC_t _cmJsonValidateErr( cmJs_t* p, const char* text )
  2021. {
  2022. if( p != NULL )
  2023. return _cmJsonSyntaxError(p,text);
  2024. return kValidateFailJsRC;
  2025. }
  2026. // 'p' is optional. If 'p' is set to NULL the function will return kValidFailJsRC if the
  2027. // tree rooted at 'np' is invalid and will not print an error message.
  2028. cmJsRC_t _cmJsonValidateNode( cmJs_t* p, const cmJsonNode_t* np, const cmJsonNode_t* parentPtr )
  2029. {
  2030. cmJsRC_t rc = kOkJsRC;
  2031. if( parentPtr != np->ownerPtr )
  2032. return _cmJsonValidateErr(p,"A child->parent link does not agree with a parent->child link.");
  2033. if( parentPtr == NULL )
  2034. {
  2035. if( np->typeId != kArrayTId && np->typeId != kObjectTId )
  2036. return _cmJsonValidateErr(p,"Only 'array' and 'object' nodes may be the root element.");
  2037. }
  2038. else
  2039. {
  2040. if( parentPtr->typeId != kArrayTId && parentPtr->typeId != kObjectTId && parentPtr->typeId != kPairTId )
  2041. return _cmJsonValidateErr(p,"Parent nodes must be either 'object','array' or 'pair' nodes.");
  2042. }
  2043. switch( np->typeId )
  2044. {
  2045. case kPairTId:
  2046. if( cmJsonChildCount(np) != 2 )
  2047. return _cmJsonValidateErr(p,"'pair' nodes must have exactly two children.");
  2048. if( np->u.childPtr->typeId != kStringTId )
  2049. return _cmJsonValidateErr(p,"The first child of 'pair' nodes must be a 'string' node.");
  2050. // fall through
  2051. case kObjectTId:
  2052. case kArrayTId:
  2053. {
  2054. // validate each child node
  2055. cmJsonNode_t* cnp = np->u.childPtr;
  2056. while(cnp != NULL)
  2057. {
  2058. if( cnp->ownerPtr != np )
  2059. return _cmJsonValidateErr(p,"A parent->child pointer was not validated with a child->parent pointer.");
  2060. if( np->typeId == kObjectTId && cnp->typeId != kPairTId )
  2061. return _cmJsonValidateErr(p,"All 'object' child nodes must be 'pair' nodes.");
  2062. if((rc = _cmJsonValidateNode(p,cnp,np)) != kOkJsRC )
  2063. return rc;
  2064. cnp = cnp->siblingPtr;
  2065. }
  2066. }
  2067. break;
  2068. case kStringTId:
  2069. case kIntTId:
  2070. case kRealTId:
  2071. case kNullTId:
  2072. case kTrueTId:
  2073. case kFalseTId:
  2074. default:
  2075. break;
  2076. }
  2077. return rc;
  2078. }
  2079. cmJsRC_t cmJsonValidateTree( cmJsonH_t h )
  2080. {
  2081. cmJs_t* p = _cmJsonHandleToPtr(h);
  2082. return _cmJsonValidateNode(p,p->rootPtr,NULL);
  2083. }
  2084. cmJsRC_t cmJsonValidate( const cmJsonNode_t* np )
  2085. { return _cmJsonValidateNode(NULL,np,np->ownerPtr); }
  2086. cmJsonNode_t* _cmJsonDuplicateNode( cmJs_t* p, const cmJsonNode_t* np, cmJsonNode_t* parentPtr )
  2087. {
  2088. cmJsonNode_t* newParentPtr = NULL;
  2089. cmJsonNode_t* newNodePtr = NULL;
  2090. cmJsRC_t rc = kOkJsRC;
  2091. switch( np->typeId )
  2092. {
  2093. case kObjectTId:
  2094. case kArrayTId:
  2095. rc = _cmJsonCreateNode(p,parentPtr,np->typeId,&newParentPtr);
  2096. break;
  2097. case kPairTId:
  2098. rc = _cmJsonCreatePair(p,parentPtr,np->u.childPtr->u.stringVal,&newParentPtr);
  2099. break;
  2100. case kIntTId:
  2101. rc = _cmJsonCreateInt(p,parentPtr,np->u.intVal,&newNodePtr);
  2102. break;
  2103. case kRealTId:
  2104. rc = _cmJsonCreateReal(p,parentPtr,np->u.realVal,&newNodePtr);
  2105. break;
  2106. case kStringTId:
  2107. rc = _cmJsonCreateString(p,parentPtr,np->u.stringVal,strlen(np->u.stringVal),&newNodePtr);
  2108. break;
  2109. case kTrueTId:
  2110. case kFalseTId:
  2111. rc = _cmJsonCreateBool(p,parentPtr,np->u.boolVal,&newNodePtr);
  2112. break;
  2113. case kNullTId:
  2114. rc = _cmJsonCreateNull(p,parentPtr,&newNodePtr);
  2115. }
  2116. if( rc != kOkJsRC )
  2117. return NULL;
  2118. if( newParentPtr != NULL )
  2119. {
  2120. newNodePtr = newParentPtr;
  2121. cmJsonNode_t* cnp = np->u.childPtr;
  2122. if(np->typeId == kPairTId)
  2123. cnp = np->u.childPtr->siblingPtr;
  2124. while( cnp != NULL )
  2125. {
  2126. if( _cmJsonDuplicateNode(p,cnp,newParentPtr) != kOkJsRC )
  2127. return NULL;
  2128. cnp = cnp->siblingPtr;
  2129. }
  2130. }
  2131. return newNodePtr;
  2132. }
  2133. cmJsonNode_t* cmJsonDuplicateNode( cmJsonH_t h, const cmJsonNode_t* np, cmJsonNode_t* parentPtr )
  2134. {
  2135. cmJs_t* p = _cmJsonHandleToPtr(h);
  2136. assert( _cmJsonValidateNode(p,np,NULL) == kOkJsRC );
  2137. return _cmJsonDuplicateNode(p,np,parentPtr);
  2138. }
  2139. cmJsRC_t cmJsonMergeObjectNodes( cmJsonH_t h, cmJsonNode_t* dstObjNodePtr, const cmJsonNode_t* srcObjNodePtr )
  2140. {
  2141. assert( dstObjNodePtr!=NULL && dstObjNodePtr->typeId == kObjectTId );
  2142. assert( srcObjNodePtr!=NULL && srcObjNodePtr->typeId == kObjectTId );
  2143. cmJsRC_t rc = kOkJsRC;
  2144. cmJs_t* p = _cmJsonHandleToPtr(h);
  2145. cmJsonNode_t* cnp = NULL;
  2146. const cmJsonNode_t* snp = srcObjNodePtr->u.childPtr;
  2147. while( snp!=NULL && rc==kOkJsRC )
  2148. {
  2149. cmJsonNode_t* dnp;
  2150. assert( snp->typeId == kPairTId );
  2151. // if the src pair was not found in the dst object ...
  2152. if((rc = _cmJsonFindMemberValue(dstObjNodePtr, cmJsonPairLabel(snp), snp->u.childPtr->siblingPtr->typeId, &dnp )) != kOkJsRC )
  2153. {
  2154. cmJsonNode_t* newPairNodePtr;
  2155. // the only acceptable error is kNodeNotFoundJsRC
  2156. // (in particular we reject kNodeCannotCvtJsRC to avoid duplicating
  2157. // pairs with the same name but different types)
  2158. if( rc != kNodeNotFoundJsRC )
  2159. goto errLabel;
  2160. // create the new pair and attach it to the dst obj node
  2161. if((rc = _cmJsonCreatePair(p,dstObjNodePtr,cmJsonPairLabel(snp),&newPairNodePtr)) != kOkJsRC )
  2162. goto errLabel;
  2163. // duplicate the src pair value node and attcmh it to the new dst node
  2164. if( _cmJsonDuplicateNode(p,snp->u.childPtr->siblingPtr,newPairNodePtr) == NULL )
  2165. rc = p->rc;
  2166. // set kTempJsFl on the new node to use possible cleanup on error later
  2167. newPairNodePtr->typeId = cmSetFlag(newPairNodePtr->typeId,kTempJsFl);
  2168. }
  2169. snp = snp->siblingPtr;
  2170. }
  2171. errLabel:
  2172. // for each dst obj pair
  2173. cnp = dstObjNodePtr->u.childPtr;
  2174. while( cnp != NULL)
  2175. {
  2176. // if this child is a new node
  2177. if( cmIsFlag(cnp->typeId,kTempJsFl) )
  2178. {
  2179. // clear the temp fl
  2180. cnp->typeId = cmClrFlag(cnp->typeId,kTempJsFl);
  2181. // if there was an error remove all new pairs
  2182. if( rc != kOkJsRC )
  2183. cmJsonRemoveNode(h,cnp,true);
  2184. }
  2185. cnp = cnp->siblingPtr;
  2186. }
  2187. return rc;
  2188. }
  2189. void _cmJsonSerialCopy( cmJsSerial_t* rp, const void* sp, unsigned sn )
  2190. {
  2191. assert( rp->nextPtr + sn <= rp->endPtr );
  2192. memcpy(rp->nextPtr,sp,sn);
  2193. rp->nextPtr += sn;
  2194. }
  2195. cmJsRC_t _cmJsonSerializeNode( const cmJsonNode_t* np, cmJsSerial_t* rp )
  2196. {
  2197. cmJsRC_t rc = kOkJsRC;
  2198. // on the first pass rp->basePtr will be NULL so collect size information
  2199. // on the second pass rp->basePtr will be set so copy out data
  2200. // write the type id of this node
  2201. if( rp->basePtr != NULL )
  2202. _cmJsonSerialCopy(rp,&np->typeId,sizeof(np->typeId));
  2203. else
  2204. rp->hdr.byteCnt += sizeof(np->typeId);
  2205. rp->hdr.nodeCnt++;
  2206. switch( np->typeId )
  2207. {
  2208. // write the child count
  2209. case kObjectTId:
  2210. case kArrayTId:
  2211. if( rp->basePtr == NULL )
  2212. rp->hdr.byteCnt += sizeof(unsigned);
  2213. else
  2214. {
  2215. unsigned n = cmJsonChildCount( np );
  2216. _cmJsonSerialCopy(rp,&n,sizeof(unsigned));
  2217. }
  2218. // fall through
  2219. case kPairTId:
  2220. {
  2221. cmJsonNode_t* cnp = np->u.childPtr;
  2222. while(cnp != NULL )
  2223. {
  2224. _cmJsonSerializeNode(cnp,rp);
  2225. cnp = cnp->siblingPtr;
  2226. }
  2227. }
  2228. break;
  2229. case kStringTId:
  2230. // write the string contents
  2231. if( rp->basePtr == NULL )
  2232. rp->hdr.byteCnt += strlen(np->u.stringVal) + 1;
  2233. else
  2234. _cmJsonSerialCopy( rp, np->u.stringVal, strlen(np->u.stringVal)+1 );
  2235. break;
  2236. case kIntTId:
  2237. // write the int value
  2238. if( rp->basePtr == NULL )
  2239. rp->hdr.byteCnt += sizeof(np->u.intVal);
  2240. else
  2241. _cmJsonSerialCopy(rp,&np->u.intVal,sizeof(np->u.intVal));
  2242. break;
  2243. case kRealTId:
  2244. // write the real value
  2245. if( rp->basePtr == NULL )
  2246. rp->hdr.byteCnt += sizeof(np->u.realVal);
  2247. else
  2248. _cmJsonSerialCopy(rp, &np->u.realVal, sizeof(np->u.realVal));
  2249. break;
  2250. }
  2251. return rc;
  2252. }
  2253. unsigned cmJsonSerialByteCount( const cmJsonNode_t* np )
  2254. {
  2255. cmJsRC_t rc;
  2256. cmJsSerial_t vr;
  2257. memset(&vr,0,sizeof(vr));
  2258. // make a first pass to determine the size of the buffer
  2259. if((rc = _cmJsonSerializeNode(np,&vr)) != kOkJsRC )
  2260. return rc;
  2261. // increment the buffer size to include the buffer header
  2262. return (4*sizeof(unsigned)) + vr.hdr.byteCnt;
  2263. }
  2264. cmJsRC_t cmJsonSerialize( const cmJsonNode_t* np, void* buf, unsigned bufByteCnt )
  2265. {
  2266. cmJsRC_t rc = kOkJsRC;
  2267. cmJsSerial_t vr;
  2268. memset(&vr,0,sizeof(vr));
  2269. // setup the serial buffer
  2270. vr.hdr.id = 'json';
  2271. vr.hdr.byteCnt = bufByteCnt - (2*sizeof(unsigned));
  2272. vr.hdr.version = 0;
  2273. vr.basePtr = buf;
  2274. vr.nextPtr = vr.basePtr;
  2275. vr.endPtr = vr.basePtr + bufByteCnt;
  2276. // write the header recd
  2277. _cmJsonSerialCopy(&vr, &vr.hdr.id, sizeof(unsigned));
  2278. _cmJsonSerialCopy(&vr, &vr.hdr.byteCnt, sizeof(unsigned));
  2279. _cmJsonSerialCopy(&vr, &vr.hdr.nodeCnt, sizeof(unsigned));
  2280. _cmJsonSerialCopy(&vr, &vr.hdr.version, sizeof(unsigned));
  2281. // copy the node data into the serial buffer
  2282. if((rc = _cmJsonSerializeNode(np,&vr)) != kOkJsRC )
  2283. return rc;
  2284. vr.basePtr = buf;
  2285. vr.nextPtr = vr.basePtr;
  2286. _cmJsonSerialCopy(&vr, &vr.hdr.id, sizeof(unsigned));
  2287. _cmJsonSerialCopy(&vr, &vr.hdr.byteCnt, sizeof(unsigned));
  2288. _cmJsonSerialCopy(&vr, &vr.hdr.nodeCnt, sizeof(unsigned));
  2289. return rc;
  2290. }
  2291. cmJsRC_t cmJsonSerializeTree( cmJsonH_t h, const cmJsonNode_t* np, void** bufPtrPtr, unsigned* bufByteCntPtr)
  2292. {
  2293. cmJsRC_t rc;
  2294. cmJsSerial_t vr;
  2295. memset(&vr,0,sizeof(vr));
  2296. cmJs_t* p = _cmJsonHandleToPtr(h);
  2297. assert( bufPtrPtr != NULL && bufByteCntPtr != NULL );
  2298. *bufPtrPtr = NULL;
  2299. *bufByteCntPtr = 0;
  2300. if( np == NULL )
  2301. np = p->rootPtr;
  2302. // validate the tree
  2303. if((rc = _cmJsonValidateNode(p,np,np->ownerPtr)) != kOkJsRC )
  2304. return rc;
  2305. // increment the buffer size to include the buffer header
  2306. p->serialByteCnt = cmJsonSerialByteCount(np);
  2307. // allocate the serial buffer memory
  2308. p->serialBufPtr = cmMemResize( char, p->serialBufPtr, p->serialByteCnt );
  2309. // serialize the tree
  2310. if((rc = cmJsonSerialize(np, p->serialBufPtr, p->serialByteCnt )) != kOkJsRC )
  2311. return rc;
  2312. *bufPtrPtr = p->serialBufPtr;
  2313. *bufByteCntPtr = p->serialByteCnt;
  2314. return rc;
  2315. }
  2316. const void* _cmJsonDeserialAdv( cmJsDeserial_t* rp, unsigned n )
  2317. {
  2318. const void* vp = rp->nextPtr;
  2319. rp->nextPtr += n;
  2320. assert(rp->nextPtr <= rp->endPtr);
  2321. assert(rp->nodeIdx <= rp->nodeCnt);
  2322. return vp;
  2323. }
  2324. int _cmJsonDeserialInt( cmJsDeserial_t* rp )
  2325. { return *(const int*)_cmJsonDeserialAdv(rp,sizeof(int)); }
  2326. unsigned _cmJsonDeserialUint( cmJsDeserial_t* rp )
  2327. { return *(const unsigned*)_cmJsonDeserialAdv(rp,sizeof(unsigned)); }
  2328. double _cmJsonDeserialReal( cmJsDeserial_t* rp )
  2329. { return *(const double*)_cmJsonDeserialAdv(rp,sizeof(double)); }
  2330. cmJsRC_t _cmJsonDeserializeNode( cmJs_t* p, cmJsonNode_t* parentPtr, cmJsDeserial_t* rp )
  2331. {
  2332. cmJsRC_t rc = kOkJsRC;
  2333. unsigned typeId = _cmJsonDeserialUint(rp);
  2334. unsigned childCnt = 0;
  2335. cmJsonNode_t* newParentPtr = NULL;
  2336. rp->nodeIdx++;
  2337. switch( typeId )
  2338. {
  2339. case kPairTId:
  2340. rc = _cmJsonCreateNode(p,parentPtr,typeId,&newParentPtr);
  2341. childCnt = 2;
  2342. break;
  2343. case kObjectTId:
  2344. case kArrayTId:
  2345. rc = _cmJsonCreateNode(p,parentPtr,typeId,&newParentPtr);
  2346. childCnt = _cmJsonDeserialUint(rp);
  2347. break;
  2348. case kStringTId:
  2349. {
  2350. unsigned sn = strlen(rp->nextPtr);
  2351. rc = _cmJsonCreateString( p, parentPtr, rp->nextPtr, sn,NULL);
  2352. _cmJsonDeserialAdv(rp,sn+1);
  2353. }
  2354. break;
  2355. case kIntTId:
  2356. {
  2357. int v = _cmJsonDeserialInt(rp);
  2358. rc = _cmJsonCreateInt( p, parentPtr, v, NULL );
  2359. }
  2360. break;
  2361. case kRealTId:
  2362. {
  2363. double v = _cmJsonDeserialReal(rp);
  2364. rc = _cmJsonCreateReal( p, parentPtr, v, NULL );
  2365. }
  2366. break;
  2367. case kNullTId:
  2368. rc = _cmJsonCreateNull( p, parentPtr, NULL );
  2369. break;
  2370. case kTrueTId:
  2371. rc = _cmJsonCreateBool( p, parentPtr, true, NULL );
  2372. break;
  2373. case kFalseTId:
  2374. rc = _cmJsonCreateBool( p, parentPtr, false, NULL );
  2375. break;
  2376. default:
  2377. assert(0);
  2378. break;
  2379. }
  2380. if( rc != kOkJsRC )
  2381. return rc;
  2382. // if the current node is a parent
  2383. if( childCnt > 0 )
  2384. {
  2385. unsigned i;
  2386. assert( newParentPtr != NULL );
  2387. for(i=0; i<childCnt; ++i)
  2388. if((rc= _cmJsonDeserializeNode( p, newParentPtr, rp )) != kOkJsRC )
  2389. return rc;
  2390. }
  2391. return rc;
  2392. }
  2393. cmJsRC_t _cmJsonDeserialize( cmJs_t* p, const void* vbuf, cmJsonNode_t* altRootPtr )
  2394. {
  2395. cmJsDeserial_t r;
  2396. cmJsonNode_t* rootPtr = altRootPtr == NULL ? p->rootPtr : altRootPtr;
  2397. const char* buf = (const char*)vbuf;
  2398. memset(&r,0,sizeof(r));
  2399. r.nextPtr = buf;
  2400. r.endPtr = buf + (4*sizeof(unsigned)); // the buf must at least contain a header
  2401. // read the buffer header
  2402. unsigned hdrId = _cmJsonDeserialUint(&r);
  2403. unsigned byteCnt = _cmJsonDeserialUint(&r);
  2404. r.nodeCnt = _cmJsonDeserialUint(&r);
  2405. /*unsigned version =*/ _cmJsonDeserialUint(&r);
  2406. if( hdrId != 'json' )
  2407. return _cmJsonError(p,kSerialErrJsRC,"The buffer does not have the correct header.");
  2408. if( byteCnt < (4*sizeof(unsigned)) )
  2409. return _cmJsonError(p,kSerialErrJsRC,"The buffer is too small to be contain any information.");
  2410. // change the buffer end pointer to the correct size based
  2411. // on the the byte count stored in the buffer
  2412. r.endPtr = buf + byteCnt + (2*sizeof(unsigned));
  2413. return _cmJsonDeserializeNode(p, rootPtr, &r );
  2414. }
  2415. cmJsRC_t cmJsonDeserialize( cmJsonH_t h, const void* bufPtr, cmJsonNode_t* altRootPtr )
  2416. {
  2417. cmJs_t* p = _cmJsonHandleToPtr(h);
  2418. return _cmJsonDeserialize(p,bufPtr,altRootPtr);
  2419. }
  2420. cmJsRC_t cmJsonLeafToString( const cmJsonNode_t* np, cmChar_t* buf, unsigned bufCharCnt )
  2421. {
  2422. const char* cp = NULL;
  2423. unsigned n = 0;
  2424. assert( buf!=NULL && bufCharCnt > 0 );
  2425. switch(np->typeId & kMaskTId )
  2426. {
  2427. case kStringTId:
  2428. cp = np->u.stringVal==NULL ? "" : np->u.stringVal;
  2429. break;
  2430. case kNullTId:
  2431. cp = "null";
  2432. break;
  2433. case kTrueTId:
  2434. cp = "true";
  2435. break;
  2436. case kFalseTId:
  2437. cp = "false";
  2438. break;
  2439. case kIntTId:
  2440. n = snprintf(buf,bufCharCnt,"%i",np->u.intVal)+1;
  2441. break;
  2442. case kRealTId:
  2443. n = snprintf(buf,bufCharCnt,"%f",np->u.realVal)+1;
  2444. break;
  2445. default:
  2446. assert(0);
  2447. return kInvalidNodeTypeJsRC;
  2448. }
  2449. if( cp != NULL )
  2450. {
  2451. n = strlen(cp)+1;
  2452. if( bufCharCnt < n )
  2453. n = bufCharCnt;
  2454. strncpy(buf,cp,n);
  2455. /*
  2456. n = strlen(np->u.stringVal)+1;
  2457. if( bufCharCnt < n )
  2458. n = bufCharCnt;
  2459. strncpy(buf,np->u.stringVal,n);
  2460. */
  2461. }
  2462. buf[bufCharCnt-1]=0;
  2463. assert( n>0 && n < bufCharCnt );
  2464. return n == bufCharCnt ? kBufTooSmallJsRC : kOkJsRC ;
  2465. }
  2466. cmJsRC_t _cmJsonRptCsvTokErr( cmJs_t* p, unsigned lineNo, cmLexH lexH, const char* iFn )
  2467. {
  2468. unsigned n = cmMin(31,cmLexTokenCharCount(lexH));
  2469. char b[n+1];
  2470. strncpy(b,cmLexTokenText(lexH),n);
  2471. b[n]=0;
  2472. return _cmJsonError( p, kCsvErrJsRC, "Unexpected token '%s' during CSV parse on line %i of '%s'.",b,cmLexCurrentLineNumber(lexH),cmStringNullGuard(iFn));
  2473. }
  2474. cmJsRC_t _cmJsonRptCsvTypeErr( cmJs_t* p, unsigned lineNo, cmLexH lexH, const char* iFn, const char* actualTypeStr, unsigned expTypeId )
  2475. {
  2476. unsigned n = cmMin(31,cmLexTokenCharCount(lexH));
  2477. char b[n+1];
  2478. strncpy(b,cmLexTokenText(lexH),n);
  2479. b[n]=0;
  2480. return _cmJsonError( p, kCsvErrJsRC, "Unexpected token '%s' during CSV parse on line %i of '%s'.\nExpected type:%s actual type:%s",b,cmLexCurrentLineNumber(lexH),cmStringNullGuard(iFn),_cmJsonNodeTypeIdToLabel(expTypeId),actualTypeStr);
  2481. }
  2482. cmJsRC_t cmJsonFromCSV( cmJsonH_t h, const char* iFn, cmJsonNode_t* parentNodePtr, cmJsonNode_t** arrayNodePtrPtr )
  2483. {
  2484. enum
  2485. {
  2486. kCommaTokId = kUserLexTId+1,
  2487. kIntTokId,
  2488. kRealTokId,
  2489. kTrueTokId,
  2490. kFalseTokId,
  2491. kStringTokId,
  2492. kBoolTokId
  2493. };
  2494. typedef struct field_str
  2495. {
  2496. char* fieldLabel;
  2497. unsigned typeId;
  2498. struct field_str* linkPtr;
  2499. } field_t;
  2500. cmJsRC_t rc = kOkJsRC;
  2501. cmJs_t* p = _cmJsonHandleToPtr(h);
  2502. cmLexH lexH = cmLexInit( NULL, 0, 0, p->err.rpt );
  2503. field_t* fieldList = NULL;
  2504. cmJsonNode_t* arrayNodePtr = NULL;
  2505. cmJsonNode_t* objNodePtr = NULL;
  2506. unsigned lineNo = 0;
  2507. field_t* fieldPtr = NULL;
  2508. field_t* lp = NULL;
  2509. unsigned tokId;
  2510. unsigned fieldIdx = 0;
  2511. // validate the init state of the lexer
  2512. if( cmLexIsValid(lexH) == false )
  2513. {
  2514. rc = _cmJsonError( p, kLexErrJsRC, "Lexer initialization failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
  2515. goto errLabel;
  2516. }
  2517. // register CSV specific tokens
  2518. cmLexRegisterToken( lexH, kCommaTokId, ",");
  2519. cmLexRegisterToken( lexH, kIntTokId, "int");
  2520. cmLexRegisterToken( lexH, kRealTokId, "real");
  2521. cmLexRegisterToken( lexH, kTrueTokId, "true");
  2522. cmLexRegisterToken( lexH, kFalseTokId, "false");
  2523. cmLexRegisterToken( lexH, kStringTokId, "string");
  2524. cmLexRegisterToken( lexH, kBoolTokId, "bool");
  2525. // lex the file
  2526. if( cmLexSetFile( lexH, iFn ) != kOkLexRC )
  2527. {
  2528. rc = _cmJsonError( p, kLexErrJsRC, "Lex failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
  2529. goto errLabel;
  2530. }
  2531. // create the parent array
  2532. if((arrayNodePtr = cmJsonCreateArray( h, parentNodePtr )) == NULL )
  2533. {
  2534. rc = _cmJsonError( p, kCsvErrJsRC, "CSV array create failed during parse of '%s'.",cmStringNullGuard(iFn));
  2535. goto errLabel;
  2536. }
  2537. // iterate through the lexer file
  2538. while(((tokId = cmLexGetNextToken(lexH)) != kErrorLexTId) && (tokId != kEofLexTId) )
  2539. {
  2540. unsigned fieldTypeTokId = kInvalidTId;
  2541. switch( cmLexCurrentLineNumber(lexH) )
  2542. {
  2543. // line 1 contains the field type labels (e.g. int,real,string,true,false,bool)
  2544. case 1:
  2545. switch(tokId)
  2546. {
  2547. case kCommaTokId:
  2548. break;
  2549. case kIntTokId:
  2550. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kIntTId : fieldTypeTokId;
  2551. case kRealTokId:
  2552. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kRealTId : fieldTypeTokId;
  2553. case kTrueTokId:
  2554. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kTrueTId : fieldTypeTokId;
  2555. case kFalseTokId:
  2556. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kFalseTId : fieldTypeTokId;
  2557. case kBoolTokId:
  2558. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kFalseTId : fieldTypeTokId;
  2559. case kStringTokId:
  2560. fieldTypeTokId = (fieldTypeTokId==kInvalidTId) ? kStringTId : fieldTypeTokId;
  2561. // create and intitialize a new field
  2562. field_t* rp = cmMemAllocZ( field_t, 1 );
  2563. rp->fieldLabel = NULL;
  2564. rp->typeId = fieldTypeTokId;
  2565. rp->linkPtr = NULL;
  2566. // and add it to the end of the field list
  2567. if( fieldList == NULL )
  2568. fieldList = rp;
  2569. else
  2570. fieldPtr->linkPtr = rp;
  2571. // fieldPtr points to the end of the list
  2572. fieldPtr = rp;
  2573. break;
  2574. default:
  2575. rc = _cmJsonRptCsvTokErr( p, 1, lexH, iFn );
  2576. goto errLabel;
  2577. }
  2578. break;
  2579. // line 2 contains the field labels
  2580. case 2:
  2581. if( fieldIdx == 0 )
  2582. fieldPtr = fieldList;
  2583. ++fieldIdx;
  2584. switch(tokId)
  2585. {
  2586. case kCommaTokId:
  2587. break;
  2588. // all line 2 tokens must be identifiers or q-strings
  2589. case kIdentLexTId:
  2590. case kQStrLexTId:
  2591. if( fieldPtr == NULL )
  2592. {
  2593. rc = _cmJsonError( p, kCsvErrJsRC, "More fields on line 2 than type specifiers on line 1 of '%s'.",cmStringNullGuard(iFn));
  2594. goto errLabel;
  2595. }
  2596. else
  2597. {
  2598. // set the field name in the field list
  2599. unsigned n = cmLexTokenCharCount(lexH);
  2600. fieldPtr->fieldLabel = cmMemAllocZ( char, n+1 );
  2601. strncpy(fieldPtr->fieldLabel,cmLexTokenText(lexH),n);
  2602. fieldPtr->fieldLabel[n] = 0;
  2603. fieldPtr = fieldPtr->linkPtr;
  2604. }
  2605. break;
  2606. default:
  2607. rc = _cmJsonRptCsvTokErr( p, 2, lexH, iFn );
  2608. goto errLabel;
  2609. }
  2610. break;
  2611. // lines 3 to end of file contain data
  2612. default:
  2613. {
  2614. int ival = 0;
  2615. cmReal_t rval = 0;
  2616. // if we are starting a new line in the CSV file
  2617. if( lineNo != cmLexCurrentLineNumber(lexH) )
  2618. {
  2619. // verify that field ptr is pointing to the end of the field list
  2620. if( fieldPtr != NULL )
  2621. {
  2622. rc = _cmJsonError( p, kCsvErrJsRC, "Missing columns were detected on line %i in CSV file '%s'.", lineNo, cmStringNullGuard(iFn));
  2623. goto errLabel;
  2624. }
  2625. fieldPtr = fieldList;
  2626. lineNo = cmLexCurrentLineNumber(lexH);
  2627. // create the object to hold the fields on this line
  2628. if((objNodePtr = cmJsonCreateObject( h, arrayNodePtr )) == NULL )
  2629. {
  2630. rc = _cmJsonError( p, kCsvErrJsRC, "Object node create failed on line %i in CSV file '%s'.",lineNo,cmStringNullGuard(iFn));
  2631. goto errLabel;
  2632. }
  2633. }
  2634. if( tokId == kCommaTokId )
  2635. continue;
  2636. if( fieldPtr == NULL )
  2637. {
  2638. rc = _cmJsonError( p, kCsvErrJsRC, "More columns than fields on line %i in CSV file '%s'.", lineNo,cmStringNullGuard(iFn));
  2639. goto errLabel;
  2640. }
  2641. // given the tokens type convert the token string into a value
  2642. switch(tokId)
  2643. {
  2644. case kRealLexTId:
  2645. #ifdef CM_FLOAT_REAL
  2646. rval = cmLexTokenFloat(lexH);
  2647. #else
  2648. rval = cmLexTokenDouble(lexH);
  2649. #endif
  2650. ival = (int)rval;
  2651. if( fieldPtr->typeId == kStringTId )
  2652. {
  2653. rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "numeric", fieldPtr->typeId );
  2654. goto errLabel;
  2655. }
  2656. break;
  2657. case kIntLexTId:
  2658. case kHexLexTId:
  2659. ival = cmLexTokenInt(lexH);
  2660. rval = ival;
  2661. if( fieldPtr->typeId == kStringTId )
  2662. {
  2663. rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "numeric", fieldPtr->typeId );
  2664. goto errLabel;
  2665. }
  2666. break;
  2667. case kTrueTokId:
  2668. ival = 1;
  2669. rval = 1.0;
  2670. break;
  2671. case kFalseTokId:
  2672. ival = 0;
  2673. rval = 0.0;
  2674. break;
  2675. case kIdentLexTId:
  2676. case kQStrLexTId:
  2677. if( fieldPtr->typeId != kStringTId )
  2678. {
  2679. rc = _cmJsonRptCsvTypeErr(p, lineNo, lexH, iFn, "string", fieldPtr->typeId );
  2680. goto errLabel;
  2681. }
  2682. break;
  2683. default:
  2684. rc = _cmJsonRptCsvTokErr( p, lineNo, lexH, iFn );
  2685. goto errLabel;
  2686. }
  2687. // create the pair object from the current field label and value
  2688. switch(fieldPtr->typeId)
  2689. {
  2690. case kIntTId:
  2691. rc = cmJsonInsertPairInt( h, objNodePtr, fieldPtr->fieldLabel, ival );
  2692. break;
  2693. case kRealTId:
  2694. rc = cmJsonInsertPairReal( h, objNodePtr, fieldPtr->fieldLabel, rval );
  2695. break;
  2696. case kTrueTId:
  2697. case kFalseTId:
  2698. rc = cmJsonInsertPairBool( h, objNodePtr, fieldPtr->fieldLabel, ival );
  2699. break;
  2700. case kStringTId:
  2701. rc = cmJsonInsertPairStringN( h, objNodePtr, fieldPtr->fieldLabel, cmLexTokenText(lexH), cmLexTokenCharCount(lexH) );
  2702. break;
  2703. default:
  2704. {
  2705. assert(0);
  2706. goto errLabel;
  2707. }
  2708. }
  2709. if( rc != kOkJsRC )
  2710. goto errLabel;
  2711. fieldPtr = fieldPtr->linkPtr;
  2712. }
  2713. break;
  2714. }
  2715. }
  2716. errLabel:
  2717. if( cmLexFinal(&lexH) != kOkLexRC )
  2718. {
  2719. rc = _cmJsonError( p, kLexErrJsRC, "Lexer finalize failed on CSV parse of '%s'.",cmStringNullGuard(iFn));
  2720. goto errLabel;
  2721. }
  2722. lp = fieldList;
  2723. while( lp!=NULL )
  2724. {
  2725. field_t* pp = lp->linkPtr;
  2726. cmMemPtrFree(&lp->fieldLabel);
  2727. cmMemPtrFree(&lp);
  2728. lp = pp;
  2729. }
  2730. if( rc != kOkJsRC )
  2731. _cmJsonRemoveNode( p, arrayNodePtr, true, true );
  2732. if( rc == kOkJsRC && arrayNodePtrPtr != NULL )
  2733. *arrayNodePtrPtr = arrayNodePtr;
  2734. return rc;
  2735. }
  2736. cmJsRC_t cmJsonToCSV( cmJsonH_t h, const char* oFn, const cmJsonNode_t* arrayNodePtr )
  2737. {
  2738. assert( arrayNodePtr->typeId == kArrayTId );
  2739. typedef struct r_str
  2740. {
  2741. const char* fieldLabel;
  2742. unsigned typeId;
  2743. struct r_str* linkPtr;
  2744. } field_t;
  2745. cmJs_t* p = _cmJsonHandleToPtr(h);
  2746. cmJsRC_t rc = kOkJsRC;
  2747. unsigned arrayCnt = cmJsonChildCount(arrayNodePtr);
  2748. field_t* fieldList = NULL;
  2749. FILE* fp = NULL;
  2750. field_t* lp = NULL;
  2751. unsigned i,j;
  2752. // for each object in the array
  2753. for(i=0; i<arrayCnt; ++i)
  2754. {
  2755. const cmJsonNode_t* objNodePtr = cmJsonArrayElementC( arrayNodePtr, i );
  2756. assert( objNodePtr->typeId == kObjectTId );
  2757. // for each pair in the object
  2758. for(j=0; j<cmJsonChildCount(objNodePtr); ++j)
  2759. {
  2760. const cmJsonNode_t* pairNodePtr = cmJsonArrayElementC( objNodePtr, j );
  2761. const char* pairLabel = cmJsonPairLabel(pairNodePtr);
  2762. lp = fieldList;
  2763. // find this field in the field list
  2764. for(; lp != NULL; lp = lp->linkPtr )
  2765. if( strcmp(lp->fieldLabel,pairLabel) == 0)
  2766. {
  2767. unsigned typeId = cmJsonPairTypeId(pairNodePtr);
  2768. switch( typeId )
  2769. {
  2770. case kIntTId:
  2771. case kRealTId:
  2772. case kTrueTId:
  2773. case kFalseTId:
  2774. case kStringTId:
  2775. break;
  2776. default:
  2777. rc = _cmJsonError( p, kInvalidNodeTypeJsRC, "Field '%s' has type '%s' which cannot be written by cmJsonToCSV().",cmStringNullGuard(pairLabel),_cmJsonNodeTypeIdToLabel(typeId) );
  2778. goto errLabel;
  2779. }
  2780. if( typeId != lp->typeId )
  2781. {
  2782. rc = _cmJsonError( p, kInvalidNodeTypeJsRC, "All nodes for a field label '%s' do not have the same type. '%s' != '%s'",cmStringNullGuard(pairLabel), _cmJsonNodeTypeIdToLabel(typeId), _cmJsonNodeTypeIdToLabel(lp->typeId) );
  2783. goto errLabel;
  2784. }
  2785. break;
  2786. }
  2787. // if this field was not found then insert it
  2788. if( lp == NULL )
  2789. {
  2790. field_t* rp = (field_t*)cmLHeapAlloc(p->heapH,sizeof(field_t));
  2791. rp->fieldLabel = pairLabel;
  2792. rp->linkPtr = fieldList;
  2793. rp->typeId = cmJsonPairTypeId(pairNodePtr);
  2794. fieldList = rp;
  2795. }
  2796. }
  2797. }
  2798. // create the output file
  2799. if((fp = fopen(oFn,"wt")) == NULL )
  2800. {
  2801. rc = _cmJsonError( p, kFileCreateErrJsRC, "CSV file '%s' create failed.", oFn );
  2802. goto errLabel;
  2803. }
  2804. // write the field type
  2805. lp = fieldList;
  2806. for(; lp!=NULL; lp=lp->linkPtr)
  2807. {
  2808. fprintf(fp,"%s", _cmJsonNodeTypeIdToLabel(lp->typeId));
  2809. if( lp->linkPtr != NULL )
  2810. fprintf(fp,",");
  2811. }
  2812. fprintf(fp,"\n");
  2813. // write the field label
  2814. lp = fieldList;
  2815. for(; lp!=NULL; lp=lp->linkPtr)
  2816. {
  2817. fprintf(fp,"\"%s\"", lp->fieldLabel);
  2818. if( lp->linkPtr != NULL )
  2819. fprintf(fp,",");
  2820. }
  2821. fprintf(fp,"\n");
  2822. // for each object in the array
  2823. for(i=0; i<arrayCnt; ++i)
  2824. {
  2825. unsigned j;
  2826. const cmJsonNode_t* objNodePtr = cmJsonArrayElementC( arrayNodePtr, i );
  2827. unsigned fieldCnt = cmJsonChildCount(objNodePtr);
  2828. lp = fieldList;
  2829. // for each field ...
  2830. for(j=0; lp!=NULL; lp=lp->linkPtr,++j)
  2831. {
  2832. cmJsonNode_t* valNodePtr;
  2833. // ... locate the pair given the field label
  2834. if((valNodePtr = cmJsonFindValue(h,lp->fieldLabel, objNodePtr, lp->typeId )) == NULL)
  2835. {
  2836. // no pair was found for the field label - output a NULL value
  2837. switch( lp->typeId )
  2838. {
  2839. case kIntTId:
  2840. fprintf(fp,"%i",0);
  2841. break;
  2842. case kRealTId:
  2843. fprintf(fp,"%f",0.0);
  2844. break;
  2845. case kTrueTId:
  2846. case kFalseTId:
  2847. fprintf(fp,"%i",0);
  2848. break;
  2849. case kStringTId:
  2850. fprintf(fp,"\"\"");
  2851. break;
  2852. default:
  2853. assert(0);
  2854. break;
  2855. }
  2856. //rc = _cmJsonError( p, kNodeNotFoundJsRC,"No field with label '%s' was found.", lp->fieldLabel);
  2857. //goto errLabel;
  2858. }
  2859. else
  2860. {
  2861. switch( valNodePtr->typeId )
  2862. {
  2863. case kIntTId:
  2864. fprintf(fp,"%i", valNodePtr->u.intVal);
  2865. break;
  2866. case kRealTId:
  2867. fprintf(fp,"%e", valNodePtr->u.realVal);
  2868. break;
  2869. case kTrueTId:
  2870. case kFalseTId:
  2871. fprintf(fp,"%i", valNodePtr->u.boolVal);
  2872. break;
  2873. case kStringTId:
  2874. fprintf(fp,"\"%s\"", valNodePtr->u.stringVal);
  2875. break;
  2876. default:
  2877. assert(0);
  2878. break;
  2879. }
  2880. }
  2881. if( j < fieldCnt-1 )
  2882. fprintf(fp,",");
  2883. }
  2884. fprintf(fp,"\n");
  2885. }
  2886. errLabel:
  2887. if( fp != NULL )
  2888. fclose(fp);
  2889. lp = fieldList;
  2890. while( lp!=NULL )
  2891. {
  2892. field_t* pp = lp->linkPtr;
  2893. cmLHeapFree(p->heapH,lp);
  2894. lp = pp;
  2895. }
  2896. return rc;
  2897. }
  2898. void _cmJsonPrintIndent( cmRpt_t* rpt, unsigned indent )
  2899. {
  2900. if( indent )
  2901. {
  2902. char spaces[indent+1];
  2903. spaces[indent]=0;
  2904. memset(spaces,' ',indent);
  2905. cmRptPrint(rpt,spaces);
  2906. }
  2907. }
  2908. void _cmJsonPrintNode( const cmJsonNode_t* np, cmRpt_t* rpt, unsigned indent )
  2909. {
  2910. unsigned childCnt = 0;
  2911. char eoObjStr[] = "}";
  2912. char eoArrStr[] = "]";
  2913. char eoPairStr[] = "\n";
  2914. char commaStr[] = ",\n";
  2915. char colonStr[] = ": ";
  2916. const char* eleStr = NULL;
  2917. const char* lastEleStr = NULL;
  2918. const char* eoStr = NULL;
  2919. unsigned localIndent = 0;
  2920. switch(np->typeId)
  2921. {
  2922. case kObjectTId:
  2923. cmRptPrint(rpt,"\n");
  2924. _cmJsonPrintIndent(rpt,indent);
  2925. cmRptPrint(rpt,"{\n");
  2926. childCnt = cmJsonChildCount(np);
  2927. eoStr = eoObjStr;
  2928. localIndent = 2;
  2929. break;
  2930. case kArrayTId:
  2931. cmRptPrint(rpt,"\n");
  2932. _cmJsonPrintIndent(rpt,indent);
  2933. cmRptPrint(rpt,"[\n");
  2934. childCnt = cmJsonChildCount(np);
  2935. eoStr = eoArrStr;
  2936. localIndent = 2;
  2937. eleStr = commaStr;
  2938. lastEleStr = "\n";
  2939. break;
  2940. case kPairTId:
  2941. childCnt = cmJsonChildCount(np);
  2942. eleStr = colonStr;
  2943. eoStr = eoPairStr;
  2944. break;
  2945. case kStringTId:
  2946. {
  2947. const char* fmt0 = "\"%s\" ";
  2948. const char* fmt1 = "%s";
  2949. const char* fmt = fmt0;
  2950. // if this string is the label part of a pair
  2951. if( np->u.stringVal != NULL && np->ownerPtr != NULL && cmJsonIsPair(np->ownerPtr) && np->ownerPtr->u.childPtr == np )
  2952. {
  2953. // and the label has no white space
  2954. char* cp = np->u.stringVal;
  2955. while( *cp!=0 && isspace(*cp)==false )
  2956. ++cp;
  2957. // then print without quotes
  2958. if( *cp == 0 )
  2959. fmt = fmt1;
  2960. }
  2961. cmRptPrintf(rpt,fmt,np->u.stringVal==NULL ? "" : np->u.stringVal);
  2962. }
  2963. break;
  2964. case kIntTId:
  2965. cmRptPrintf(rpt,"%i ",np->u.intVal);
  2966. break;
  2967. case kRealTId:
  2968. cmRptPrintf(rpt,"%f ",np->u.realVal);
  2969. break;
  2970. case kNullTId:
  2971. cmRptPrint(rpt,"null ");
  2972. break;
  2973. case kTrueTId:
  2974. cmRptPrint(rpt,"true ");
  2975. break;
  2976. case kFalseTId:
  2977. cmRptPrint(rpt,"false ");
  2978. break;
  2979. }
  2980. if( childCnt )
  2981. {
  2982. indent += localIndent;
  2983. unsigned i;
  2984. cmJsonNode_t* cnp = np->u.childPtr;
  2985. for(i=0; i<childCnt; ++i)
  2986. {
  2987. assert(cnp != NULL);
  2988. if( np->typeId != kPairTId )
  2989. _cmJsonPrintIndent(rpt,indent);
  2990. _cmJsonPrintNode(cnp,rpt,indent);
  2991. cnp = cnp->siblingPtr;
  2992. if( i < childCnt-1 && eleStr != NULL )
  2993. cmRptPrint(rpt,eleStr);
  2994. if( i == childCnt-1 && lastEleStr != NULL )
  2995. cmRptPrint(rpt,lastEleStr);
  2996. }
  2997. indent -= localIndent;
  2998. }
  2999. if( eoStr != NULL )
  3000. {
  3001. _cmJsonPrintIndent(rpt,indent);
  3002. cmRptPrint(rpt,eoStr);
  3003. }
  3004. }
  3005. void cmJsonPrintTree( const cmJsonNode_t* np, cmRpt_t* rpt )
  3006. {
  3007. _cmJsonPrintNode(np,rpt,0);
  3008. }
  3009. void _cmJsPrintFile(void* cmRptUserPtr, const cmChar_t* text)
  3010. {
  3011. cmFileH_t* hp = (cmFileH_t*)cmRptUserPtr;
  3012. cmFilePrint(*hp,text);
  3013. }
  3014. cmJsRC_t cmJsonWrite( cmJsonH_t h, const cmJsonNode_t* np, const cmChar_t* fn )
  3015. {
  3016. cmRpt_t rpt;
  3017. cmFileH_t fh = cmFileNullHandle;
  3018. cmJs_t* p = _cmJsonHandleToPtr(h);
  3019. if( np == NULL )
  3020. np = cmJsonRoot(h);
  3021. // create the output file
  3022. if( cmFileOpen(&fh,fn,kWriteFileFl,p->err.rpt) != kOkFileRC )
  3023. return _cmJsonError( p, kFileCreateErrJsRC, "Output file '%s' create failed.", fn );
  3024. // setup a reporter to write to the file
  3025. cmRptSetup(&rpt,_cmJsPrintFile,_cmJsPrintFile,&fh);
  3026. // print the tree to the file
  3027. cmJsonPrintTree(np,&rpt);
  3028. // close the file
  3029. if( cmFileClose(&fh) != kOkFileRC )
  3030. return _cmJsonError( p, kFileCloseErrJsRC, "Output file '%s' close failed.", fn );
  3031. return kOkJsRC;
  3032. }
  3033. cmJsRC_t cmJsonReport( cmJsonH_t h )
  3034. {
  3035. cmJsRC_t rc;
  3036. cmJs_t* p = _cmJsonHandleToPtr(h);
  3037. if((rc = cmJsonValidateTree(h)) != kOkJsRC )
  3038. return rc;
  3039. if(p->rootPtr != NULL )
  3040. _cmJsonPrintNode(p->rootPtr,p->err.rpt,0);
  3041. return rc;
  3042. }
  3043. cmJsRC_t cmJsonErrorCode( cmJsonH_t h )
  3044. {
  3045. cmJs_t* p = _cmJsonHandleToPtr(h);
  3046. return p->rc;
  3047. }
  3048. void cmJsonClearErrorCode( cmJsonH_t h )
  3049. {
  3050. cmJs_t* p = _cmJsonHandleToPtr(h);
  3051. p->rc = kOkJsRC;
  3052. }
  3053. void _cmJsonTestVPrint( void* rptDataPtr, const char* fmt, va_list vl )
  3054. {
  3055. vfprintf(stdout,fmt,vl);
  3056. }
  3057. void _cmJsonTestPrint( void* userPtr, const cmChar_t* text )
  3058. {
  3059. fputs(text,stdout);
  3060. }
  3061. //{ { label:cmJsonEx }
  3062. //(
  3063. // cmJsonTest() demonstrates some JSON tree operations.
  3064. //)
  3065. //[
  3066. cmJsRC_t cmJsonTest( const char* fn, cmCtx_t* ctx )
  3067. {
  3068. cmJsRC_t rc = kOkJsRC;
  3069. cmJsRC_t rc1 = kOkJsRC;
  3070. cmJsonH_t h = cmJsonNullHandle;
  3071. cmJsonH_t h1 = cmJsonNullHandle;
  3072. void* sbp = NULL;
  3073. unsigned sbn = 0;
  3074. cmJsonNode_t* np = NULL;
  3075. cmRpt_t* rpt = &ctx->rpt;
  3076. // initialize an empty JSON tree
  3077. if((rc = cmJsonInitialize(&h,ctx)) != kOkJsRC )
  3078. goto errLabel;
  3079. // load the tree from a file
  3080. if((rc = cmJsonParseFile(h,fn,NULL)) != kOkJsRC )
  3081. goto errLabel;
  3082. // print the tree
  3083. cmJsonReport(h);
  3084. // find an array member named 'mem14'
  3085. if((np = cmJsonFindValue(h,"mem14",NULL,kArrayTId)) == NULL )
  3086. cmRptPrint(rpt,"'mem14' not found.\n");
  3087. else
  3088. {
  3089. cmRptPrint(rpt,"'mem14' found.\n");
  3090. cmJsonPrintTree(np,rpt);
  3091. }
  3092. // remove the array node from the tree
  3093. cmJsonRemoveNode(h,np, true);
  3094. cmRptPrint(rpt,"mem14 removed.\n");
  3095. // print the tree with the array node removed
  3096. cmJsonPrintTree( cmJsonRoot(h), rpt );
  3097. // serialize the tree into a dynamically allocated
  3098. // buffer sbp[sbn].
  3099. if((rc = cmJsonSerializeTree(h,NULL,&sbp,&sbn)) != kOkJsRC )
  3100. goto errLabel;
  3101. else
  3102. cmRptPrint(rpt,"***Serialize Ok.****\n");
  3103. // initialize an empty JSON tree
  3104. if((rc = cmJsonInitialize(&h1,ctx)) != kOkJsRC )
  3105. goto errLabel;
  3106. // deserialize sbp[sbn] into the empty tree
  3107. if((rc = cmJsonDeserialize(h1,sbp,NULL)) != kOkJsRC )
  3108. goto errLabel;
  3109. else
  3110. {
  3111. cmJsonPrintTree( cmJsonRoot(h1),rpt);
  3112. cmRptPrint(rpt,"***Deserialize Ok.****\n");
  3113. }
  3114. // find an member node named 'mem5'
  3115. if((np = cmJsonFindValue(h,"mem5",NULL,0)) == NULL )
  3116. cmRptPrint(rpt,"mem5 not found.");
  3117. // merge two sub-trees
  3118. if( cmJsonMergeObjectNodes( h, np->u.childPtr,
  3119. np->u.childPtr->siblingPtr) != kOkJsRC )
  3120. {
  3121. cmRptPrint(rpt,"merge failed.");
  3122. }
  3123. else
  3124. {
  3125. cmJsonReport(h);
  3126. }
  3127. errLabel:
  3128. // release the JSON trees
  3129. rc = cmJsonFinalize(&h);
  3130. rc1 = cmJsonFinalize(&h1);
  3131. return rc == kOkJsRC ? rc1 : rc;
  3132. }
  3133. //]
  3134. //}