Annotation of embedaddon/iperf/src/cjson.c, revision 1.1.1.2
1.1 misho 1: /*
1.1.1.2 ! misho 2: Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
1.1 misho 3:
4: Permission is hereby granted, free of charge, to any person obtaining a copy
5: of this software and associated documentation files (the "Software"), to deal
6: in the Software without restriction, including without limitation the rights
7: to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8: copies of the Software, and to permit persons to whom the Software is
9: furnished to do so, subject to the following conditions:
10:
11: The above copyright notice and this permission notice shall be included in
12: all copies or substantial portions of the Software.
13:
14: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15: IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16: FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17: AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18: LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19: OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
20: THE SOFTWARE.
21: */
22:
23: /* cJSON */
24: /* JSON parser in C. */
25:
1.1.1.2 ! misho 26: /* disable warnings about old C89 functions in MSVC */
! 27: #if !defined(_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER)
! 28: #define _CRT_SECURE_NO_DEPRECATE
! 29: #endif
! 30:
! 31: #ifdef __GNUC__
! 32: #pragma GCC visibility push(default)
! 33: #endif
! 34: #if defined(_MSC_VER)
! 35: #pragma warning (push)
! 36: /* disable warning about single line comments in system headers */
! 37: #pragma warning (disable : 4001)
! 38: #endif
! 39:
1.1 misho 40: #include <string.h>
41: #include <stdio.h>
42: #include <math.h>
43: #include <stdlib.h>
44: #include <limits.h>
45: #include <ctype.h>
1.1.1.2 ! misho 46: #include <float.h>
1.1 misho 47: #ifdef HAVE_STDINT_H
1.1.1.2 ! misho 48: #include <stdint.h>
1.1 misho 49: #endif
50: #include <sys/types.h>
1.1.1.2 ! misho 51:
! 52: #ifdef ENABLE_LOCALES
! 53: #include <locale.h>
! 54: #endif
! 55:
! 56: #if defined(_MSC_VER)
! 57: #pragma warning (pop)
! 58: #endif
! 59: #ifdef __GNUC__
! 60: #pragma GCC visibility pop
! 61: #endif
! 62:
1.1 misho 63: #include "cjson.h"
64:
1.1.1.2 ! misho 65: /* define our own boolean type */
! 66: #ifdef true
! 67: #undef true
! 68: #endif
! 69: #define true ((cJSON_bool)1)
! 70:
! 71: #ifdef false
! 72: #undef false
! 73: #endif
! 74: #define false ((cJSON_bool)0)
! 75:
! 76: /* define isnan and isinf for ANSI C, if in C99 or above, isnan and isinf has been defined in math.h */
! 77: #ifndef isinf
! 78: #define isinf(d) (isnan((d - d)) && !isnan(d))
! 79: #endif
! 80: #ifndef isnan
! 81: #define isnan(d) (d != d)
! 82: #endif
! 83:
! 84: #ifndef NAN
! 85: #define NAN 0.0/0.0
! 86: #endif
! 87:
! 88: typedef struct {
! 89: const unsigned char *json;
! 90: size_t position;
! 91: } error;
! 92: static error global_error = { NULL, 0 };
! 93:
1.1 misho 94: #ifndef LLONG_MAX
95: #define LLONG_MAX 9223372036854775807LL
96: #endif
97: #ifndef LLONG_MIN
98: #define LLONG_MIN (-LLONG_MAX - 1LL)
99: #endif
100:
1.1.1.2 ! misho 101: CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void)
! 102: {
! 103: return (const char*) (global_error.json + global_error.position);
! 104: }
! 105:
! 106: CJSON_PUBLIC(char *) cJSON_GetStringValue(cJSON *item)
! 107: {
! 108: if (!cJSON_IsString(item))
! 109: {
! 110: return NULL;
! 111: }
! 112:
! 113: return item->valuestring;
! 114: }
! 115:
! 116: CJSON_PUBLIC(double) cJSON_GetNumberValue(cJSON *item)
! 117: {
! 118: if (!cJSON_IsNumber(item))
! 119: {
! 120: return NAN;
! 121: }
! 122:
! 123: return item->valuedouble;
! 124: }
! 125:
! 126: /* This is a safeguard to prevent copy-pasters from using incompatible C and header files */
! 127: #if (CJSON_VERSION_MAJOR != 1) || (CJSON_VERSION_MINOR != 7) || (CJSON_VERSION_PATCH != 13)
! 128: #error cJSON.h and cJSON.c have different versions. Make sure that both have the same.
! 129: #endif
! 130:
! 131: CJSON_PUBLIC(const char*) cJSON_Version(void)
! 132: {
! 133: static char version[15];
! 134: sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH);
! 135:
! 136: return version;
! 137: }
! 138:
! 139: /* Case insensitive string comparison, doesn't consider two NULL pointers equal though */
! 140: static int case_insensitive_strcmp(const unsigned char *string1, const unsigned char *string2)
! 141: {
! 142: if ((string1 == NULL) || (string2 == NULL))
! 143: {
! 144: return 1;
! 145: }
! 146:
! 147: if (string1 == string2)
! 148: {
! 149: return 0;
! 150: }
! 151:
! 152: for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
! 153: {
! 154: if (*string1 == '\0')
! 155: {
! 156: return 0;
! 157: }
! 158: }
! 159:
! 160: return tolower(*string1) - tolower(*string2);
! 161: }
! 162:
! 163: typedef struct internal_hooks
! 164: {
! 165: void *(CJSON_CDECL *allocate)(size_t size);
! 166: void (CJSON_CDECL *deallocate)(void *pointer);
! 167: void *(CJSON_CDECL *reallocate)(void *pointer, size_t size);
! 168: } internal_hooks;
1.1 misho 169:
1.1.1.2 ! misho 170: #if defined(_MSC_VER)
! 171: /* work around MSVC error C2322: '...' address of dllimport '...' is not static */
! 172: static void * CJSON_CDECL internal_malloc(size_t size)
! 173: {
! 174: return malloc(size);
! 175: }
! 176: static void CJSON_CDECL internal_free(void *pointer)
! 177: {
! 178: free(pointer);
! 179: }
! 180: static void * CJSON_CDECL internal_realloc(void *pointer, size_t size)
1.1 misho 181: {
1.1.1.2 ! misho 182: return realloc(pointer, size);
1.1 misho 183: }
1.1.1.2 ! misho 184: #else
! 185: #define internal_malloc malloc
! 186: #define internal_free free
! 187: #define internal_realloc realloc
! 188: #endif
! 189:
! 190: /* strlen of character literals resolved at compile time */
! 191: #define static_strlen(string_literal) (sizeof(string_literal) - sizeof(""))
1.1 misho 192:
1.1.1.2 ! misho 193: static internal_hooks global_hooks = { internal_malloc, internal_free, internal_realloc };
1.1 misho 194:
1.1.1.2 ! misho 195: static unsigned char* cJSON_strdup(const unsigned char* string, const internal_hooks * const hooks)
1.1 misho 196: {
1.1.1.2 ! misho 197: size_t length = 0;
! 198: unsigned char *copy = NULL;
! 199:
! 200: if (string == NULL)
! 201: {
! 202: return NULL;
! 203: }
1.1 misho 204:
1.1.1.2 ! misho 205: length = strlen((const char*)string) + sizeof("");
! 206: copy = (unsigned char*)hooks->allocate(length);
! 207: if (copy == NULL)
! 208: {
! 209: return NULL;
! 210: }
! 211: memcpy(copy, string, length);
! 212:
! 213: return copy;
1.1 misho 214: }
215:
1.1.1.2 ! misho 216: CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks)
1.1 misho 217: {
1.1.1.2 ! misho 218: if (hooks == NULL)
! 219: {
! 220: /* Reset hooks */
! 221: global_hooks.allocate = malloc;
! 222: global_hooks.deallocate = free;
! 223: global_hooks.reallocate = realloc;
1.1 misho 224: return;
225: }
226:
1.1.1.2 ! misho 227: global_hooks.allocate = malloc;
! 228: if (hooks->malloc_fn != NULL)
! 229: {
! 230: global_hooks.allocate = hooks->malloc_fn;
! 231: }
! 232:
! 233: global_hooks.deallocate = free;
! 234: if (hooks->free_fn != NULL)
! 235: {
! 236: global_hooks.deallocate = hooks->free_fn;
! 237: }
! 238:
! 239: /* use realloc only if both free and malloc are used */
! 240: global_hooks.reallocate = NULL;
! 241: if ((global_hooks.allocate == malloc) && (global_hooks.deallocate == free))
! 242: {
! 243: global_hooks.reallocate = realloc;
! 244: }
1.1 misho 245: }
246:
247: /* Internal constructor. */
1.1.1.2 ! misho 248: static cJSON *cJSON_New_Item(const internal_hooks * const hooks)
1.1 misho 249: {
1.1.1.2 ! misho 250: cJSON* node = (cJSON*)hooks->allocate(sizeof(cJSON));
! 251: if (node)
! 252: {
! 253: memset(node, '\0', sizeof(cJSON));
! 254: }
! 255:
! 256: return node;
1.1 misho 257: }
258:
259: /* Delete a cJSON structure. */
1.1.1.2 ! misho 260: CJSON_PUBLIC(void) cJSON_Delete(cJSON *item)
! 261: {
! 262: cJSON *next = NULL;
! 263: while (item != NULL)
! 264: {
! 265: next = item->next;
! 266: if (!(item->type & cJSON_IsReference) && (item->child != NULL))
! 267: {
! 268: cJSON_Delete(item->child);
! 269: }
! 270: if (!(item->type & cJSON_IsReference) && (item->valuestring != NULL))
! 271: {
! 272: global_hooks.deallocate(item->valuestring);
! 273: }
! 274: if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
! 275: {
! 276: global_hooks.deallocate(item->string);
! 277: }
! 278: global_hooks.deallocate(item);
! 279: item = next;
! 280: }
! 281: }
! 282:
! 283: /* get the decimal point character of the current locale */
! 284: static unsigned char get_decimal_point(void)
1.1 misho 285: {
1.1.1.2 ! misho 286: #ifdef ENABLE_LOCALES
! 287: struct lconv *lconv = localeconv();
! 288: return (unsigned char) lconv->decimal_point[0];
! 289: #else
! 290: return '.';
! 291: #endif
1.1 misho 292: }
293:
1.1.1.2 ! misho 294: typedef struct
! 295: {
! 296: const unsigned char *content;
! 297: size_t length;
! 298: size_t offset;
! 299: size_t depth; /* How deeply nested (in arrays/objects) is the input at the current offset. */
! 300: internal_hooks hooks;
! 301: } parse_buffer;
! 302:
! 303: /* check if the given size is left to read in a given parse buffer (starting with 1) */
! 304: #define can_read(buffer, size) ((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))
! 305: /* check if the buffer can be accessed at the given index (starting with 0) */
! 306: #define can_access_at_index(buffer, index) ((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))
! 307: #define cannot_access_at_index(buffer, index) (!can_access_at_index(buffer, index))
! 308: /* get a pointer to the buffer at the position */
! 309: #define buffer_at_offset(buffer) ((buffer)->content + (buffer)->offset)
! 310:
1.1 misho 311: /* Parse the input text to generate a number, and populate the result into item. */
1.1.1.2 ! misho 312: static cJSON_bool parse_number(cJSON * const item, parse_buffer * const input_buffer)
1.1 misho 313: {
1.1.1.2 ! misho 314: double number = 0;
! 315: unsigned char *after_end = NULL;
! 316: unsigned char number_c_string[64];
! 317: unsigned char decimal_point = get_decimal_point();
! 318: size_t i = 0;
! 319:
! 320: if ((input_buffer == NULL) || (input_buffer->content == NULL))
! 321: {
! 322: return false;
! 323: }
! 324:
! 325: /* copy the number into a temporary buffer and replace '.' with the decimal point
! 326: * of the current locale (for strtod)
! 327: * This also takes care of '\0' not necessarily being available for marking the end of the input */
! 328: for (i = 0; (i < (sizeof(number_c_string) - 1)) && can_access_at_index(input_buffer, i); i++)
! 329: {
! 330: switch (buffer_at_offset(input_buffer)[i])
! 331: {
! 332: case '0':
! 333: case '1':
! 334: case '2':
! 335: case '3':
! 336: case '4':
! 337: case '5':
! 338: case '6':
! 339: case '7':
! 340: case '8':
! 341: case '9':
! 342: case '+':
! 343: case '-':
! 344: case 'e':
! 345: case 'E':
! 346: number_c_string[i] = buffer_at_offset(input_buffer)[i];
! 347: break;
! 348:
! 349: case '.':
! 350: number_c_string[i] = decimal_point;
! 351: break;
! 352:
! 353: default:
! 354: goto loop_end;
! 355: }
! 356: }
! 357: loop_end:
! 358: number_c_string[i] = '\0';
! 359:
! 360: number = strtod((const char*)number_c_string, (char**)&after_end);
! 361: if (number_c_string == after_end)
! 362: {
! 363: return false; /* parse_error */
! 364: }
! 365:
! 366: item->valuedouble = number;
! 367:
! 368: /* use saturation in case of overflow */
! 369: if (number >= LLONG_MAX)
! 370: {
! 371: item->valueint = LLONG_MAX;
! 372: }
! 373: else if (number <= (double)LLONG_MIN)
! 374: {
! 375: item->valueint = LLONG_MIN;
! 376: }
! 377: else
! 378: {
! 379: item->valueint = (int64_t)number;
! 380: }
1.1 misho 381:
1.1.1.2 ! misho 382: item->type = cJSON_Number;
! 383:
! 384: input_buffer->offset += (size_t)(after_end - number_c_string);
! 385: return true;
1.1 misho 386: }
387:
1.1.1.2 ! misho 388: /* don't ask me, but the original cJSON_SetNumberValue returns an integer or double */
! 389: CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number)
1.1 misho 390: {
1.1.1.2 ! misho 391: if (number >= LLONG_MAX)
! 392: {
! 393: object->valueint = LLONG_MAX;
! 394: }
! 395: else if (number <= (double)LLONG_MIN)
! 396: {
! 397: object->valueint = LLONG_MIN;
! 398: }
! 399: else
! 400: {
! 401: object->valueint = (int64_t)number;
! 402: }
! 403:
! 404: return object->valuedouble = number;
1.1 misho 405: }
406:
1.1.1.2 ! misho 407: CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring)
1.1 misho 408: {
1.1.1.2 ! misho 409: char *copy = NULL;
! 410: /* if object's type is not cJSON_String or is cJSON_IsReference, it should not set valuestring */
! 411: if (!(object->type & cJSON_String) || (object->type & cJSON_IsReference))
! 412: {
! 413: return NULL;
! 414: }
! 415: if (strlen(valuestring) <= strlen(object->valuestring))
! 416: {
! 417: strcpy(object->valuestring, valuestring);
! 418: return object->valuestring;
! 419: }
! 420: copy = (char*) cJSON_strdup((const unsigned char*)valuestring, &global_hooks);
! 421: if (copy == NULL)
! 422: {
! 423: return NULL;
! 424: }
! 425: if (object->valuestring != NULL)
! 426: {
! 427: cJSON_free(object->valuestring);
! 428: }
! 429: object->valuestring = copy;
1.1 misho 430:
1.1.1.2 ! misho 431: return copy;
1.1 misho 432: }
433:
1.1.1.2 ! misho 434: typedef struct
! 435: {
! 436: unsigned char *buffer;
! 437: size_t length;
! 438: size_t offset;
! 439: size_t depth; /* current nesting depth (for formatted printing) */
! 440: cJSON_bool noalloc;
! 441: cJSON_bool format; /* is this print a formatted print */
! 442: internal_hooks hooks;
! 443: } printbuffer;
1.1 misho 444:
1.1.1.2 ! misho 445: /* realloc printbuffer if necessary to have at least "needed" bytes more */
! 446: static unsigned char* ensure(printbuffer * const p, size_t needed)
! 447: {
! 448: unsigned char *newbuffer = NULL;
! 449: size_t newsize = 0;
1.1 misho 450:
1.1.1.2 ! misho 451: if ((p == NULL) || (p->buffer == NULL))
! 452: {
! 453: return NULL;
! 454: }
! 455:
! 456: if ((p->length > 0) && (p->offset >= p->length))
! 457: {
! 458: /* make sure that offset is valid */
! 459: return NULL;
! 460: }
! 461:
! 462: if (needed > SIZE_MAX)
! 463: {
! 464: /* sizes bigger than SIZE_MAX are currently not supported */
! 465: return NULL;
! 466: }
! 467:
! 468: needed += p->offset + 1;
! 469: if (needed <= p->length)
! 470: {
! 471: return p->buffer + p->offset;
! 472: }
! 473:
! 474: if (p->noalloc) {
! 475: return NULL;
! 476: }
! 477:
! 478: /* calculate new buffer size */
! 479: if (needed > (SIZE_MAX / 2))
! 480: {
! 481: /* overflow of int, use SIZE_MAX if possible */
! 482: if (needed <= SIZE_MAX)
! 483: {
! 484: newsize = SIZE_MAX;
! 485: }
! 486: else
! 487: {
! 488: return NULL;
! 489: }
! 490: }
! 491: else
! 492: {
! 493: newsize = needed * 2;
! 494: }
! 495:
! 496: if (p->hooks.reallocate != NULL)
! 497: {
! 498: /* reallocate with realloc if available */
! 499: newbuffer = (unsigned char*)p->hooks.reallocate(p->buffer, newsize);
! 500: if (newbuffer == NULL)
! 501: {
! 502: p->hooks.deallocate(p->buffer);
! 503: p->length = 0;
! 504: p->buffer = NULL;
! 505:
! 506: return NULL;
! 507: }
! 508: }
! 509: else
! 510: {
! 511: /* otherwise reallocate manually */
! 512: newbuffer = (unsigned char*)p->hooks.allocate(newsize);
! 513: if (!newbuffer)
! 514: {
! 515: p->hooks.deallocate(p->buffer);
! 516: p->length = 0;
! 517: p->buffer = NULL;
! 518:
! 519: return NULL;
! 520: }
! 521: if (newbuffer)
! 522: {
! 523: memcpy(newbuffer, p->buffer, p->offset + 1);
! 524: }
! 525: p->hooks.deallocate(p->buffer);
! 526: }
! 527: p->length = newsize;
! 528: p->buffer = newbuffer;
! 529:
! 530: return newbuffer + p->offset;
! 531: }
! 532:
! 533: /* calculate the new length of the string in a printbuffer and update the offset */
! 534: static void update_offset(printbuffer * const buffer)
1.1 misho 535: {
1.1.1.2 ! misho 536: const unsigned char *buffer_pointer = NULL;
! 537: if ((buffer == NULL) || (buffer->buffer == NULL))
! 538: {
! 539: return;
! 540: }
! 541: buffer_pointer = buffer->buffer + buffer->offset;
! 542:
! 543: buffer->offset += strlen((const char*)buffer_pointer);
1.1 misho 544: }
545:
1.1.1.2 ! misho 546: /* securely comparison of floating-point variables */
! 547: static cJSON_bool compare_double(double a, double b)
! 548: {
! 549: double maxVal = fabs(a) > fabs(b) ? fabs(a) : fabs(b);
! 550: return (fabs(a - b) <= maxVal * DBL_EPSILON);
! 551: }
1.1 misho 552:
1.1.1.2 ! misho 553: /* Render the number nicely from the given item into a string. */
! 554: static cJSON_bool print_number(const cJSON * const item, printbuffer * const output_buffer)
1.1 misho 555: {
1.1.1.2 ! misho 556: unsigned char *output_pointer = NULL;
! 557: double d = item->valuedouble;
! 558: int length = 0;
! 559: size_t i = 0;
! 560: unsigned char number_buffer[26] = {0}; /* temporary buffer to print the number into */
! 561: unsigned char decimal_point = get_decimal_point();
! 562: double test = 0.0;
! 563:
! 564: if (output_buffer == NULL)
! 565: {
! 566: return false;
! 567: }
! 568:
! 569: /* This checks for NaN and Infinity */
! 570: if (isnan(d) || isinf(d))
! 571: {
! 572: length = sprintf((char*)number_buffer, "null");
! 573: }
! 574: else
! 575: {
! 576: /* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */
! 577: length = sprintf((char*)number_buffer, "%1.15g", d);
! 578:
! 579: /* Check whether the original double can be recovered */
! 580: if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || !compare_double((double)test, d))
! 581: {
! 582: /* If not, print with 17 decimal places of precision */
! 583: length = sprintf((char*)number_buffer, "%1.17g", d);
! 584: }
! 585: }
! 586:
! 587: /* sprintf failed or buffer overrun occurred */
! 588: if ((length < 0) || (length > (int)(sizeof(number_buffer) - 1)))
! 589: {
! 590: return false;
! 591: }
! 592:
! 593: /* reserve appropriate space in the output */
! 594: output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
! 595: if (output_pointer == NULL)
! 596: {
! 597: return false;
! 598: }
! 599:
! 600: /* copy the printed number to the output and replace locale
! 601: * dependent decimal point with '.' */
! 602: for (i = 0; i < ((size_t)length); i++)
! 603: {
! 604: if (number_buffer[i] == decimal_point)
! 605: {
! 606: output_pointer[i] = '.';
! 607: continue;
! 608: }
! 609:
! 610: output_pointer[i] = number_buffer[i];
! 611: }
! 612: output_pointer[i] = '\0';
! 613:
! 614: output_buffer->offset += (size_t)length;
! 615:
! 616: return true;
1.1 misho 617: }
618:
1.1.1.2 ! misho 619: /* parse 4 digit hexadecimal number */
! 620: static unsigned parse_hex4(const unsigned char * const input)
! 621: {
! 622: unsigned int h = 0;
! 623: size_t i = 0;
! 624:
! 625: for (i = 0; i < 4; i++)
! 626: {
! 627: /* parse digit */
! 628: if ((input[i] >= '0') && (input[i] <= '9'))
! 629: {
! 630: h += (unsigned int) input[i] - '0';
! 631: }
! 632: else if ((input[i] >= 'A') && (input[i] <= 'F'))
! 633: {
! 634: h += (unsigned int) 10 + input[i] - 'A';
! 635: }
! 636: else if ((input[i] >= 'a') && (input[i] <= 'f'))
! 637: {
! 638: h += (unsigned int) 10 + input[i] - 'a';
! 639: }
! 640: else /* invalid */
! 641: {
! 642: return 0;
! 643: }
! 644:
! 645: if (i < 3)
! 646: {
! 647: /* shift left to make place for the next nibble */
! 648: h = h << 4;
! 649: }
! 650: }
1.1 misho 651:
1.1.1.2 ! misho 652: return h;
! 653: }
! 654:
! 655: /* converts a UTF-16 literal to UTF-8
! 656: * A literal can be one or two sequences of the form \uXXXX */
! 657: static unsigned char utf16_literal_to_utf8(const unsigned char * const input_pointer, const unsigned char * const input_end, unsigned char **output_pointer)
! 658: {
! 659: long unsigned int codepoint = 0;
! 660: unsigned int first_code = 0;
! 661: const unsigned char *first_sequence = input_pointer;
! 662: unsigned char utf8_length = 0;
! 663: unsigned char utf8_position = 0;
! 664: unsigned char sequence_length = 0;
! 665: unsigned char first_byte_mark = 0;
! 666:
! 667: if ((input_end - first_sequence) < 6)
! 668: {
! 669: /* input ends unexpectedly */
! 670: goto fail;
! 671: }
! 672:
! 673: /* get the first utf16 sequence */
! 674: first_code = parse_hex4(first_sequence + 2);
! 675:
! 676: /* check that the code is valid */
! 677: if (((first_code >= 0xDC00) && (first_code <= 0xDFFF)))
! 678: {
! 679: goto fail;
! 680: }
! 681:
! 682: /* UTF16 surrogate pair */
! 683: if ((first_code >= 0xD800) && (first_code <= 0xDBFF))
! 684: {
! 685: const unsigned char *second_sequence = first_sequence + 6;
! 686: unsigned int second_code = 0;
! 687: sequence_length = 12; /* \uXXXX\uXXXX */
! 688:
! 689: if ((input_end - second_sequence) < 6)
! 690: {
! 691: /* input ends unexpectedly */
! 692: goto fail;
! 693: }
! 694:
! 695: if ((second_sequence[0] != '\\') || (second_sequence[1] != 'u'))
! 696: {
! 697: /* missing second half of the surrogate pair */
! 698: goto fail;
! 699: }
! 700:
! 701: /* get the second utf16 sequence */
! 702: second_code = parse_hex4(second_sequence + 2);
! 703: /* check that the code is valid */
! 704: if ((second_code < 0xDC00) || (second_code > 0xDFFF))
! 705: {
! 706: /* invalid second half of the surrogate pair */
! 707: goto fail;
! 708: }
! 709:
! 710:
! 711: /* calculate the unicode codepoint from the surrogate pair */
! 712: codepoint = 0x10000 + (((first_code & 0x3FF) << 10) | (second_code & 0x3FF));
! 713: }
! 714: else
! 715: {
! 716: sequence_length = 6; /* \uXXXX */
! 717: codepoint = first_code;
! 718: }
! 719:
! 720: /* encode as UTF-8
! 721: * takes at maximum 4 bytes to encode:
! 722: * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
! 723: if (codepoint < 0x80)
! 724: {
! 725: /* normal ascii, encoding 0xxxxxxx */
! 726: utf8_length = 1;
! 727: }
! 728: else if (codepoint < 0x800)
! 729: {
! 730: /* two bytes, encoding 110xxxxx 10xxxxxx */
! 731: utf8_length = 2;
! 732: first_byte_mark = 0xC0; /* 11000000 */
! 733: }
! 734: else if (codepoint < 0x10000)
! 735: {
! 736: /* three bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx */
! 737: utf8_length = 3;
! 738: first_byte_mark = 0xE0; /* 11100000 */
! 739: }
! 740: else if (codepoint <= 0x10FFFF)
! 741: {
! 742: /* four bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx 10xxxxxx */
! 743: utf8_length = 4;
! 744: first_byte_mark = 0xF0; /* 11110000 */
! 745: }
! 746: else
! 747: {
! 748: /* invalid unicode codepoint */
! 749: goto fail;
! 750: }
! 751:
! 752: /* encode as utf8 */
! 753: for (utf8_position = (unsigned char)(utf8_length - 1); utf8_position > 0; utf8_position--)
! 754: {
! 755: /* 10xxxxxx */
! 756: (*output_pointer)[utf8_position] = (unsigned char)((codepoint | 0x80) & 0xBF);
! 757: codepoint >>= 6;
! 758: }
! 759: /* encode first byte */
! 760: if (utf8_length > 1)
! 761: {
! 762: (*output_pointer)[0] = (unsigned char)((codepoint | first_byte_mark) & 0xFF);
! 763: }
! 764: else
! 765: {
! 766: (*output_pointer)[0] = (unsigned char)(codepoint & 0x7F);
! 767: }
! 768:
! 769: *output_pointer += utf8_length;
! 770:
! 771: return sequence_length;
! 772:
! 773: fail:
! 774: return 0;
! 775: }
! 776:
! 777: /* Parse the input text into an unescaped cinput, and populate item. */
! 778: static cJSON_bool parse_string(cJSON * const item, parse_buffer * const input_buffer)
1.1 misho 779: {
1.1.1.2 ! misho 780: const unsigned char *input_pointer = buffer_at_offset(input_buffer) + 1;
! 781: const unsigned char *input_end = buffer_at_offset(input_buffer) + 1;
! 782: unsigned char *output_pointer = NULL;
! 783: unsigned char *output = NULL;
! 784:
! 785: /* not a string */
! 786: if (buffer_at_offset(input_buffer)[0] != '\"')
! 787: {
! 788: goto fail;
! 789: }
! 790:
! 791: {
! 792: /* calculate approximate size of the output (overestimate) */
! 793: size_t allocation_length = 0;
! 794: size_t skipped_bytes = 0;
! 795: while (((size_t)(input_end - input_buffer->content) < input_buffer->length) && (*input_end != '\"'))
! 796: {
! 797: /* is escape sequence */
! 798: if (input_end[0] == '\\')
! 799: {
! 800: if ((size_t)(input_end + 1 - input_buffer->content) >= input_buffer->length)
! 801: {
! 802: /* prevent buffer overflow when last input character is a backslash */
! 803: goto fail;
! 804: }
! 805: skipped_bytes++;
! 806: input_end++;
! 807: }
! 808: input_end++;
! 809: }
! 810: if (((size_t)(input_end - input_buffer->content) >= input_buffer->length) || (*input_end != '\"'))
! 811: {
! 812: goto fail; /* string ended unexpectedly */
! 813: }
! 814:
! 815: /* This is at most how much we need for the output */
! 816: allocation_length = (size_t) (input_end - buffer_at_offset(input_buffer)) - skipped_bytes;
! 817: output = (unsigned char*)input_buffer->hooks.allocate(allocation_length + sizeof(""));
! 818: if (output == NULL)
! 819: {
! 820: goto fail; /* allocation failure */
! 821: }
! 822: }
! 823:
! 824: output_pointer = output;
! 825: /* loop through the string literal */
! 826: while (input_pointer < input_end)
! 827: {
! 828: if (*input_pointer != '\\')
! 829: {
! 830: *output_pointer++ = *input_pointer++;
! 831: }
! 832: /* escape sequence */
! 833: else
! 834: {
! 835: unsigned char sequence_length = 2;
! 836: if ((input_end - input_pointer) < 1)
! 837: {
! 838: goto fail;
! 839: }
! 840:
! 841: switch (input_pointer[1])
! 842: {
! 843: case 'b':
! 844: *output_pointer++ = '\b';
! 845: break;
! 846: case 'f':
! 847: *output_pointer++ = '\f';
! 848: break;
! 849: case 'n':
! 850: *output_pointer++ = '\n';
! 851: break;
! 852: case 'r':
! 853: *output_pointer++ = '\r';
! 854: break;
! 855: case 't':
! 856: *output_pointer++ = '\t';
! 857: break;
! 858: case '\"':
! 859: case '\\':
! 860: case '/':
! 861: *output_pointer++ = input_pointer[1];
! 862: break;
! 863:
! 864: /* UTF-16 literal */
! 865: case 'u':
! 866: sequence_length = utf16_literal_to_utf8(input_pointer, input_end, &output_pointer);
! 867: if (sequence_length == 0)
! 868: {
! 869: /* failed to convert UTF16-literal to UTF-8 */
! 870: goto fail;
! 871: }
! 872: break;
! 873:
! 874: default:
! 875: goto fail;
! 876: }
! 877: input_pointer += sequence_length;
! 878: }
! 879: }
1.1 misho 880:
1.1.1.2 ! misho 881: /* zero terminate the output */
! 882: *output_pointer = '\0';
! 883:
! 884: item->type = cJSON_String;
! 885: item->valuestring = (char*)output;
! 886:
! 887: input_buffer->offset = (size_t) (input_end - input_buffer->content);
! 888: input_buffer->offset++;
! 889:
! 890: return true;
! 891:
! 892: fail:
! 893: if (output != NULL)
! 894: {
! 895: input_buffer->hooks.deallocate(output);
! 896: }
! 897:
! 898: if (input_pointer != NULL)
! 899: {
! 900: input_buffer->offset = (size_t)(input_pointer - input_buffer->content);
! 901: }
! 902:
! 903: return false;
1.1 misho 904: }
905:
1.1.1.2 ! misho 906: /* Render the cstring provided to an escaped version that can be printed. */
! 907: static cJSON_bool print_string_ptr(const unsigned char * const input, printbuffer * const output_buffer)
! 908: {
! 909: const unsigned char *input_pointer = NULL;
! 910: unsigned char *output = NULL;
! 911: unsigned char *output_pointer = NULL;
! 912: size_t output_length = 0;
! 913: /* numbers of additional characters needed for escaping */
! 914: size_t escape_characters = 0;
! 915:
! 916: if (output_buffer == NULL)
! 917: {
! 918: return false;
! 919: }
! 920:
! 921: /* empty string */
! 922: if (input == NULL)
! 923: {
! 924: output = ensure(output_buffer, sizeof("\"\""));
! 925: if (output == NULL)
! 926: {
! 927: return false;
! 928: }
! 929: strcpy((char*)output, "\"\"");
! 930:
! 931: return true;
! 932: }
! 933:
! 934: /* set "flag" to 1 if something needs to be escaped */
! 935: for (input_pointer = input; *input_pointer; input_pointer++)
! 936: {
! 937: switch (*input_pointer)
! 938: {
! 939: case '\"':
! 940: case '\\':
! 941: case '\b':
! 942: case '\f':
! 943: case '\n':
! 944: case '\r':
! 945: case '\t':
! 946: /* one character escape sequence */
! 947: escape_characters++;
! 948: break;
! 949: default:
! 950: if (*input_pointer < 32)
! 951: {
! 952: /* UTF-16 escape sequence uXXXX */
! 953: escape_characters += 5;
! 954: }
! 955: break;
! 956: }
! 957: }
! 958: output_length = (size_t)(input_pointer - input) + escape_characters;
! 959:
! 960: output = ensure(output_buffer, output_length + sizeof("\"\""));
! 961: if (output == NULL)
! 962: {
! 963: return false;
! 964: }
! 965:
! 966: /* no characters have to be escaped */
! 967: if (escape_characters == 0)
! 968: {
! 969: output[0] = '\"';
! 970: memcpy(output + 1, input, output_length);
! 971: output[output_length + 1] = '\"';
! 972: output[output_length + 2] = '\0';
! 973:
! 974: return true;
! 975: }
! 976:
! 977: output[0] = '\"';
! 978: output_pointer = output + 1;
! 979: /* copy the string */
! 980: for (input_pointer = input; *input_pointer != '\0'; (void)input_pointer++, output_pointer++)
! 981: {
! 982: if ((*input_pointer > 31) && (*input_pointer != '\"') && (*input_pointer != '\\'))
! 983: {
! 984: /* normal character, copy */
! 985: *output_pointer = *input_pointer;
! 986: }
! 987: else
! 988: {
! 989: /* character needs to be escaped */
! 990: *output_pointer++ = '\\';
! 991: switch (*input_pointer)
! 992: {
! 993: case '\\':
! 994: *output_pointer = '\\';
! 995: break;
! 996: case '\"':
! 997: *output_pointer = '\"';
! 998: break;
! 999: case '\b':
! 1000: *output_pointer = 'b';
! 1001: break;
! 1002: case '\f':
! 1003: *output_pointer = 'f';
! 1004: break;
! 1005: case '\n':
! 1006: *output_pointer = 'n';
! 1007: break;
! 1008: case '\r':
! 1009: *output_pointer = 'r';
! 1010: break;
! 1011: case '\t':
! 1012: *output_pointer = 't';
! 1013: break;
! 1014: default:
! 1015: /* escape and print as unicode codepoint */
! 1016: sprintf((char*)output_pointer, "u%04x", *input_pointer);
! 1017: output_pointer += 4;
! 1018: break;
! 1019: }
! 1020: }
! 1021: }
! 1022: output[output_length + 1] = '\"';
! 1023: output[output_length + 2] = '\0';
! 1024:
! 1025: return true;
! 1026: }
! 1027:
! 1028: /* Invoke print_string_ptr (which is useful) on an item. */
! 1029: static cJSON_bool print_string(const cJSON * const item, printbuffer * const p)
1.1 misho 1030: {
1.1.1.2 ! misho 1031: return print_string_ptr((unsigned char*)item->valuestring, p);
1.1 misho 1032: }
1033:
1.1.1.2 ! misho 1034: /* Predeclare these prototypes. */
! 1035: static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer);
! 1036: static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer);
! 1037: static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer);
! 1038: static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer);
! 1039: static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer);
! 1040: static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer);
! 1041:
! 1042: /* Utility to jump whitespace and cr/lf */
! 1043: static parse_buffer *buffer_skip_whitespace(parse_buffer * const buffer)
1.1 misho 1044: {
1.1.1.2 ! misho 1045: if ((buffer == NULL) || (buffer->content == NULL))
! 1046: {
! 1047: return NULL;
! 1048: }
1.1 misho 1049:
1.1.1.2 ! misho 1050: if (cannot_access_at_index(buffer, 0))
! 1051: {
! 1052: return buffer;
! 1053: }
! 1054:
! 1055: while (can_access_at_index(buffer, 0) && (buffer_at_offset(buffer)[0] <= 32))
! 1056: {
! 1057: buffer->offset++;
! 1058: }
! 1059:
! 1060: if (buffer->offset == buffer->length)
! 1061: {
! 1062: buffer->offset--;
! 1063: }
1.1 misho 1064:
1.1.1.2 ! misho 1065: return buffer;
1.1 misho 1066: }
1067:
1.1.1.2 ! misho 1068: /* skip the UTF-8 BOM (byte order mark) if it is at the beginning of a buffer */
! 1069: static parse_buffer *skip_utf8_bom(parse_buffer * const buffer)
1.1 misho 1070: {
1.1.1.2 ! misho 1071: if ((buffer == NULL) || (buffer->content == NULL) || (buffer->offset != 0))
! 1072: {
! 1073: return NULL;
! 1074: }
! 1075:
! 1076: if (can_access_at_index(buffer, 4) && (strncmp((const char*)buffer_at_offset(buffer), "\xEF\xBB\xBF", 3) == 0))
! 1077: {
! 1078: buffer->offset += 3;
! 1079: }
! 1080:
! 1081: return buffer;
1.1 misho 1082: }
1083:
1.1.1.2 ! misho 1084: CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated)
1.1 misho 1085: {
1.1.1.2 ! misho 1086: size_t buffer_length;
! 1087:
! 1088: if (NULL == value)
! 1089: {
! 1090: return NULL;
! 1091: }
! 1092:
! 1093: /* Adding null character size due to require_null_terminated. */
! 1094: buffer_length = strlen(value) + sizeof("");
! 1095:
! 1096: return cJSON_ParseWithLengthOpts(value, buffer_length, return_parse_end, require_null_terminated);
1.1 misho 1097: }
1098:
1.1.1.2 ! misho 1099: /* Parse an object - create a new root, and populate. */
! 1100: CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated)
1.1 misho 1101: {
1.1.1.2 ! misho 1102: parse_buffer buffer = { 0, 0, 0, 0, { 0, 0, 0 } };
! 1103: cJSON *item = NULL;
! 1104:
! 1105: /* reset error position */
! 1106: global_error.json = NULL;
! 1107: global_error.position = 0;
! 1108:
! 1109: if (value == NULL || 0 == buffer_length)
! 1110: {
! 1111: goto fail;
! 1112: }
! 1113:
! 1114: buffer.content = (const unsigned char*)value;
! 1115: buffer.length = buffer_length;
! 1116: buffer.offset = 0;
! 1117: buffer.hooks = global_hooks;
! 1118:
! 1119: item = cJSON_New_Item(&global_hooks);
! 1120: if (item == NULL) /* memory fail */
! 1121: {
! 1122: goto fail;
! 1123: }
! 1124:
! 1125: if (!parse_value(item, buffer_skip_whitespace(skip_utf8_bom(&buffer))))
! 1126: {
! 1127: /* parse failure. ep is set. */
! 1128: goto fail;
! 1129: }
! 1130:
! 1131: /* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
! 1132: if (require_null_terminated)
! 1133: {
! 1134: buffer_skip_whitespace(&buffer);
! 1135: if ((buffer.offset >= buffer.length) || buffer_at_offset(&buffer)[0] != '\0')
! 1136: {
! 1137: goto fail;
! 1138: }
! 1139: }
! 1140: if (return_parse_end)
! 1141: {
! 1142: *return_parse_end = (const char*)buffer_at_offset(&buffer);
! 1143: }
! 1144:
! 1145: return item;
! 1146:
! 1147: fail:
! 1148: if (item != NULL)
! 1149: {
! 1150: cJSON_Delete(item);
! 1151: }
! 1152:
! 1153: if (value != NULL)
! 1154: {
! 1155: error local_error;
! 1156: local_error.json = (const unsigned char*)value;
! 1157: local_error.position = 0;
! 1158:
! 1159: if (buffer.offset < buffer.length)
! 1160: {
! 1161: local_error.position = buffer.offset;
! 1162: }
! 1163: else if (buffer.length > 0)
! 1164: {
! 1165: local_error.position = buffer.length - 1;
! 1166: }
! 1167:
! 1168: if (return_parse_end != NULL)
! 1169: {
! 1170: *return_parse_end = (const char*)local_error.json + local_error.position;
! 1171: }
! 1172:
! 1173: global_error = local_error;
! 1174: }
! 1175:
! 1176: return NULL;
1.1 misho 1177: }
1178:
1.1.1.2 ! misho 1179: /* Default options for cJSON_Parse */
! 1180: CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value)
! 1181: {
! 1182: return cJSON_ParseWithOpts(value, 0, 0);
! 1183: }
1.1 misho 1184:
1.1.1.2 ! misho 1185: CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length)
! 1186: {
! 1187: return cJSON_ParseWithLengthOpts(value, buffer_length, 0, 0);
! 1188: }
1.1 misho 1189:
1.1.1.2 ! misho 1190: #define cjson_min(a, b) (((a) < (b)) ? (a) : (b))
1.1 misho 1191:
1.1.1.2 ! misho 1192: static unsigned char *print(const cJSON * const item, cJSON_bool format, const internal_hooks * const hooks)
! 1193: {
! 1194: static const size_t default_buffer_size = 256;
! 1195: printbuffer buffer[1];
! 1196: unsigned char *printed = NULL;
1.1 misho 1197:
1.1.1.2 ! misho 1198: memset(buffer, 0, sizeof(buffer));
1.1 misho 1199:
1.1.1.2 ! misho 1200: /* create buffer */
! 1201: buffer->buffer = (unsigned char*) hooks->allocate(default_buffer_size);
! 1202: buffer->length = default_buffer_size;
! 1203: buffer->format = format;
! 1204: buffer->hooks = *hooks;
! 1205: if (buffer->buffer == NULL)
! 1206: {
! 1207: goto fail;
! 1208: }
1.1 misho 1209:
1.1.1.2 ! misho 1210: /* print the value */
! 1211: if (!print_value(item, buffer))
! 1212: {
! 1213: goto fail;
! 1214: }
! 1215: update_offset(buffer);
! 1216:
! 1217: /* check if reallocate is available */
! 1218: if (hooks->reallocate != NULL)
! 1219: {
! 1220: printed = (unsigned char*) hooks->reallocate(buffer->buffer, buffer->offset + 1);
! 1221: if (printed == NULL) {
! 1222: goto fail;
! 1223: }
! 1224: buffer->buffer = NULL;
! 1225: }
! 1226: else /* otherwise copy the JSON over to a new buffer */
! 1227: {
! 1228: printed = (unsigned char*) hooks->allocate(buffer->offset + 1);
! 1229: if (printed == NULL)
! 1230: {
! 1231: goto fail;
! 1232: }
! 1233: memcpy(printed, buffer->buffer, cjson_min(buffer->length, buffer->offset + 1));
! 1234: printed[buffer->offset] = '\0'; /* just to be sure */
! 1235:
! 1236: /* free the buffer */
! 1237: hooks->deallocate(buffer->buffer);
! 1238: }
! 1239:
! 1240: return printed;
! 1241:
! 1242: fail:
! 1243: if (buffer->buffer != NULL)
! 1244: {
! 1245: hooks->deallocate(buffer->buffer);
! 1246: }
! 1247:
! 1248: if (printed != NULL)
! 1249: {
! 1250: hooks->deallocate(printed);
! 1251: }
! 1252:
! 1253: return NULL;
! 1254: }
! 1255:
! 1256: /* Render a cJSON item/entity/structure to text. */
! 1257: CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item)
! 1258: {
! 1259: return (char*)print(item, true, &global_hooks);
! 1260: }
! 1261:
! 1262: CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item)
! 1263: {
! 1264: return (char*)print(item, false, &global_hooks);
! 1265: }
! 1266:
! 1267: CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt)
! 1268: {
! 1269: printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
! 1270:
! 1271: if (prebuffer < 0)
! 1272: {
! 1273: return NULL;
! 1274: }
! 1275:
! 1276: p.buffer = (unsigned char*)global_hooks.allocate((size_t)prebuffer);
! 1277: if (!p.buffer)
! 1278: {
! 1279: return NULL;
! 1280: }
! 1281:
! 1282: p.length = (size_t)prebuffer;
! 1283: p.offset = 0;
! 1284: p.noalloc = false;
! 1285: p.format = fmt;
! 1286: p.hooks = global_hooks;
! 1287:
! 1288: if (!print_value(item, &p))
! 1289: {
! 1290: global_hooks.deallocate(p.buffer);
! 1291: return NULL;
! 1292: }
! 1293:
! 1294: return (char*)p.buffer;
! 1295: }
! 1296:
! 1297: CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format)
! 1298: {
! 1299: printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
! 1300:
! 1301: if ((length < 0) || (buffer == NULL))
! 1302: {
! 1303: return false;
! 1304: }
! 1305:
! 1306: p.buffer = (unsigned char*)buffer;
! 1307: p.length = (size_t)length;
! 1308: p.offset = 0;
! 1309: p.noalloc = true;
! 1310: p.format = format;
! 1311: p.hooks = global_hooks;
! 1312:
! 1313: return print_value(item, &p);
! 1314: }
! 1315:
! 1316: /* Parser core - when encountering text, process appropriately. */
! 1317: static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer)
! 1318: {
! 1319: if ((input_buffer == NULL) || (input_buffer->content == NULL))
! 1320: {
! 1321: return false; /* no input */
! 1322: }
! 1323:
! 1324: /* parse the different types of values */
! 1325: /* null */
! 1326: if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "null", 4) == 0))
! 1327: {
! 1328: item->type = cJSON_NULL;
! 1329: input_buffer->offset += 4;
! 1330: return true;
! 1331: }
! 1332: /* false */
! 1333: if (can_read(input_buffer, 5) && (strncmp((const char*)buffer_at_offset(input_buffer), "false", 5) == 0))
! 1334: {
! 1335: item->type = cJSON_False;
! 1336: input_buffer->offset += 5;
! 1337: return true;
! 1338: }
! 1339: /* true */
! 1340: if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "true", 4) == 0))
! 1341: {
! 1342: item->type = cJSON_True;
! 1343: item->valueint = 1;
! 1344: input_buffer->offset += 4;
! 1345: return true;
! 1346: }
! 1347: /* string */
! 1348: if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '\"'))
! 1349: {
! 1350: return parse_string(item, input_buffer);
! 1351: }
! 1352: /* number */
! 1353: if (can_access_at_index(input_buffer, 0) && ((buffer_at_offset(input_buffer)[0] == '-') || ((buffer_at_offset(input_buffer)[0] >= '0') && (buffer_at_offset(input_buffer)[0] <= '9'))))
! 1354: {
! 1355: return parse_number(item, input_buffer);
! 1356: }
! 1357: /* array */
! 1358: if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '['))
! 1359: {
! 1360: return parse_array(item, input_buffer);
! 1361: }
! 1362: /* object */
! 1363: if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '{'))
! 1364: {
! 1365: return parse_object(item, input_buffer);
! 1366: }
! 1367:
! 1368: return false;
! 1369: }
! 1370:
! 1371: /* Render a value to text. */
! 1372: static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer)
! 1373: {
! 1374: unsigned char *output = NULL;
! 1375:
! 1376: if ((item == NULL) || (output_buffer == NULL))
! 1377: {
! 1378: return false;
! 1379: }
! 1380:
! 1381: switch ((item->type) & 0xFF)
! 1382: {
! 1383: case cJSON_NULL:
! 1384: output = ensure(output_buffer, 5);
! 1385: if (output == NULL)
! 1386: {
! 1387: return false;
! 1388: }
! 1389: strcpy((char*)output, "null");
! 1390: return true;
! 1391:
! 1392: case cJSON_False:
! 1393: output = ensure(output_buffer, 6);
! 1394: if (output == NULL)
! 1395: {
! 1396: return false;
! 1397: }
! 1398: strcpy((char*)output, "false");
! 1399: return true;
! 1400:
! 1401: case cJSON_True:
! 1402: output = ensure(output_buffer, 5);
! 1403: if (output == NULL)
! 1404: {
! 1405: return false;
! 1406: }
! 1407: strcpy((char*)output, "true");
! 1408: return true;
! 1409:
! 1410: case cJSON_Number:
! 1411: return print_number(item, output_buffer);
! 1412:
! 1413: case cJSON_Raw:
! 1414: {
! 1415: size_t raw_length = 0;
! 1416: if (item->valuestring == NULL)
! 1417: {
! 1418: return false;
! 1419: }
! 1420:
! 1421: raw_length = strlen(item->valuestring) + sizeof("");
! 1422: output = ensure(output_buffer, raw_length);
! 1423: if (output == NULL)
! 1424: {
! 1425: return false;
! 1426: }
! 1427: memcpy(output, item->valuestring, raw_length);
! 1428: return true;
! 1429: }
! 1430:
! 1431: case cJSON_String:
! 1432: return print_string(item, output_buffer);
! 1433:
! 1434: case cJSON_Array:
! 1435: return print_array(item, output_buffer);
! 1436:
! 1437: case cJSON_Object:
! 1438: return print_object(item, output_buffer);
! 1439:
! 1440: default:
! 1441: return false;
! 1442: }
! 1443: }
! 1444:
! 1445: /* Build an array from input text. */
! 1446: static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer)
! 1447: {
! 1448: cJSON *head = NULL; /* head of the linked list */
! 1449: cJSON *current_item = NULL;
! 1450:
! 1451: if (input_buffer->depth >= CJSON_NESTING_LIMIT)
! 1452: {
! 1453: return false; /* to deeply nested */
! 1454: }
! 1455: input_buffer->depth++;
! 1456:
! 1457: if (buffer_at_offset(input_buffer)[0] != '[')
! 1458: {
! 1459: /* not an array */
! 1460: goto fail;
! 1461: }
! 1462:
! 1463: input_buffer->offset++;
! 1464: buffer_skip_whitespace(input_buffer);
! 1465: if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ']'))
! 1466: {
! 1467: /* empty array */
! 1468: goto success;
! 1469: }
! 1470:
! 1471: /* check if we skipped to the end of the buffer */
! 1472: if (cannot_access_at_index(input_buffer, 0))
! 1473: {
! 1474: input_buffer->offset--;
! 1475: goto fail;
! 1476: }
! 1477:
! 1478: /* step back to character in front of the first element */
! 1479: input_buffer->offset--;
! 1480: /* loop through the comma separated array elements */
! 1481: do
! 1482: {
! 1483: /* allocate next item */
! 1484: cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
! 1485: if (new_item == NULL)
! 1486: {
! 1487: goto fail; /* allocation failure */
! 1488: }
! 1489:
! 1490: /* attach next item to list */
! 1491: if (head == NULL)
! 1492: {
! 1493: /* start the linked list */
! 1494: current_item = head = new_item;
! 1495: }
! 1496: else
! 1497: {
! 1498: /* add to the end and advance */
! 1499: current_item->next = new_item;
! 1500: new_item->prev = current_item;
! 1501: current_item = new_item;
! 1502: }
! 1503:
! 1504: /* parse next value */
! 1505: input_buffer->offset++;
! 1506: buffer_skip_whitespace(input_buffer);
! 1507: if (!parse_value(current_item, input_buffer))
! 1508: {
! 1509: goto fail; /* failed to parse value */
! 1510: }
! 1511: buffer_skip_whitespace(input_buffer);
! 1512: }
! 1513: while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
! 1514:
! 1515: if (cannot_access_at_index(input_buffer, 0) || buffer_at_offset(input_buffer)[0] != ']')
! 1516: {
! 1517: goto fail; /* expected end of array */
! 1518: }
! 1519:
! 1520: success:
! 1521: input_buffer->depth--;
! 1522:
! 1523: item->type = cJSON_Array;
! 1524: item->child = head;
! 1525:
! 1526: input_buffer->offset++;
! 1527:
! 1528: return true;
! 1529:
! 1530: fail:
! 1531: if (head != NULL)
! 1532: {
! 1533: cJSON_Delete(head);
! 1534: }
! 1535:
! 1536: return false;
! 1537: }
! 1538:
! 1539: /* Render an array to text */
! 1540: static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer)
! 1541: {
! 1542: unsigned char *output_pointer = NULL;
! 1543: size_t length = 0;
! 1544: cJSON *current_element = item->child;
! 1545:
! 1546: if (output_buffer == NULL)
! 1547: {
! 1548: return false;
! 1549: }
! 1550:
! 1551: /* Compose the output array. */
! 1552: /* opening square bracket */
! 1553: output_pointer = ensure(output_buffer, 1);
! 1554: if (output_pointer == NULL)
! 1555: {
! 1556: return false;
! 1557: }
! 1558:
! 1559: *output_pointer = '[';
! 1560: output_buffer->offset++;
! 1561: output_buffer->depth++;
! 1562:
! 1563: while (current_element != NULL)
! 1564: {
! 1565: if (!print_value(current_element, output_buffer))
! 1566: {
! 1567: return false;
! 1568: }
! 1569: update_offset(output_buffer);
! 1570: if (current_element->next)
! 1571: {
! 1572: length = (size_t) (output_buffer->format ? 2 : 1);
! 1573: output_pointer = ensure(output_buffer, length + 1);
! 1574: if (output_pointer == NULL)
! 1575: {
! 1576: return false;
! 1577: }
! 1578: *output_pointer++ = ',';
! 1579: if(output_buffer->format)
! 1580: {
! 1581: *output_pointer++ = ' ';
! 1582: }
! 1583: *output_pointer = '\0';
! 1584: output_buffer->offset += length;
! 1585: }
! 1586: current_element = current_element->next;
! 1587: }
! 1588:
! 1589: output_pointer = ensure(output_buffer, 2);
! 1590: if (output_pointer == NULL)
! 1591: {
! 1592: return false;
! 1593: }
! 1594: *output_pointer++ = ']';
! 1595: *output_pointer = '\0';
! 1596: output_buffer->depth--;
! 1597:
! 1598: return true;
! 1599: }
! 1600:
! 1601: /* Build an object from the text. */
! 1602: static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer)
! 1603: {
! 1604: cJSON *head = NULL; /* linked list head */
! 1605: cJSON *current_item = NULL;
! 1606:
! 1607: if (input_buffer->depth >= CJSON_NESTING_LIMIT)
! 1608: {
! 1609: return false; /* to deeply nested */
! 1610: }
! 1611: input_buffer->depth++;
! 1612:
! 1613: if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '{'))
! 1614: {
! 1615: goto fail; /* not an object */
! 1616: }
! 1617:
! 1618: input_buffer->offset++;
! 1619: buffer_skip_whitespace(input_buffer);
! 1620: if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '}'))
! 1621: {
! 1622: goto success; /* empty object */
! 1623: }
! 1624:
! 1625: /* check if we skipped to the end of the buffer */
! 1626: if (cannot_access_at_index(input_buffer, 0))
! 1627: {
! 1628: input_buffer->offset--;
! 1629: goto fail;
! 1630: }
! 1631:
! 1632: /* step back to character in front of the first element */
! 1633: input_buffer->offset--;
! 1634: /* loop through the comma separated array elements */
! 1635: do
! 1636: {
! 1637: /* allocate next item */
! 1638: cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
! 1639: if (new_item == NULL)
! 1640: {
! 1641: goto fail; /* allocation failure */
! 1642: }
! 1643:
! 1644: /* attach next item to list */
! 1645: if (head == NULL)
! 1646: {
! 1647: /* start the linked list */
! 1648: current_item = head = new_item;
! 1649: }
! 1650: else
! 1651: {
! 1652: /* add to the end and advance */
! 1653: current_item->next = new_item;
! 1654: new_item->prev = current_item;
! 1655: current_item = new_item;
! 1656: }
! 1657:
! 1658: /* parse the name of the child */
! 1659: input_buffer->offset++;
! 1660: buffer_skip_whitespace(input_buffer);
! 1661: if (!parse_string(current_item, input_buffer))
! 1662: {
! 1663: goto fail; /* failed to parse name */
! 1664: }
! 1665: buffer_skip_whitespace(input_buffer);
! 1666:
! 1667: /* swap valuestring and string, because we parsed the name */
! 1668: current_item->string = current_item->valuestring;
! 1669: current_item->valuestring = NULL;
! 1670:
! 1671: if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != ':'))
! 1672: {
! 1673: goto fail; /* invalid object */
! 1674: }
! 1675:
! 1676: /* parse the value */
! 1677: input_buffer->offset++;
! 1678: buffer_skip_whitespace(input_buffer);
! 1679: if (!parse_value(current_item, input_buffer))
! 1680: {
! 1681: goto fail; /* failed to parse value */
! 1682: }
! 1683: buffer_skip_whitespace(input_buffer);
! 1684: }
! 1685: while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
! 1686:
! 1687: if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '}'))
! 1688: {
! 1689: goto fail; /* expected end of object */
! 1690: }
! 1691:
! 1692: success:
! 1693: input_buffer->depth--;
! 1694:
! 1695: item->type = cJSON_Object;
! 1696: item->child = head;
! 1697:
! 1698: input_buffer->offset++;
! 1699: return true;
! 1700:
! 1701: fail:
! 1702: if (head != NULL)
! 1703: {
! 1704: cJSON_Delete(head);
! 1705: }
! 1706:
! 1707: return false;
! 1708: }
! 1709:
! 1710: /* Render an object to text. */
! 1711: static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer)
! 1712: {
! 1713: unsigned char *output_pointer = NULL;
! 1714: size_t length = 0;
! 1715: cJSON *current_item = item->child;
! 1716:
! 1717: if (output_buffer == NULL)
! 1718: {
! 1719: return false;
! 1720: }
! 1721:
! 1722: /* Compose the output: */
! 1723: length = (size_t) (output_buffer->format ? 2 : 1); /* fmt: {\n */
! 1724: output_pointer = ensure(output_buffer, length + 1);
! 1725: if (output_pointer == NULL)
! 1726: {
! 1727: return false;
! 1728: }
! 1729:
! 1730: *output_pointer++ = '{';
! 1731: output_buffer->depth++;
! 1732: if (output_buffer->format)
! 1733: {
! 1734: *output_pointer++ = '\n';
! 1735: }
! 1736: output_buffer->offset += length;
! 1737:
! 1738: while (current_item)
! 1739: {
! 1740: if (output_buffer->format)
! 1741: {
! 1742: size_t i;
! 1743: output_pointer = ensure(output_buffer, output_buffer->depth);
! 1744: if (output_pointer == NULL)
! 1745: {
! 1746: return false;
! 1747: }
! 1748: for (i = 0; i < output_buffer->depth; i++)
! 1749: {
! 1750: *output_pointer++ = '\t';
! 1751: }
! 1752: output_buffer->offset += output_buffer->depth;
! 1753: }
! 1754:
! 1755: /* print key */
! 1756: if (!print_string_ptr((unsigned char*)current_item->string, output_buffer))
! 1757: {
! 1758: return false;
! 1759: }
! 1760: update_offset(output_buffer);
! 1761:
! 1762: length = (size_t) (output_buffer->format ? 2 : 1);
! 1763: output_pointer = ensure(output_buffer, length);
! 1764: if (output_pointer == NULL)
! 1765: {
! 1766: return false;
! 1767: }
! 1768: *output_pointer++ = ':';
! 1769: if (output_buffer->format)
! 1770: {
! 1771: *output_pointer++ = '\t';
! 1772: }
! 1773: output_buffer->offset += length;
! 1774:
! 1775: /* print value */
! 1776: if (!print_value(current_item, output_buffer))
! 1777: {
! 1778: return false;
! 1779: }
! 1780: update_offset(output_buffer);
! 1781:
! 1782: /* print comma if not last */
! 1783: length = ((size_t)(output_buffer->format ? 1 : 0) + (size_t)(current_item->next ? 1 : 0));
! 1784: output_pointer = ensure(output_buffer, length + 1);
! 1785: if (output_pointer == NULL)
! 1786: {
! 1787: return false;
! 1788: }
! 1789: if (current_item->next)
! 1790: {
! 1791: *output_pointer++ = ',';
! 1792: }
! 1793:
! 1794: if (output_buffer->format)
! 1795: {
! 1796: *output_pointer++ = '\n';
! 1797: }
! 1798: *output_pointer = '\0';
! 1799: output_buffer->offset += length;
! 1800:
! 1801: current_item = current_item->next;
! 1802: }
! 1803:
! 1804: output_pointer = ensure(output_buffer, output_buffer->format ? (output_buffer->depth + 1) : 2);
! 1805: if (output_pointer == NULL)
! 1806: {
! 1807: return false;
! 1808: }
! 1809: if (output_buffer->format)
! 1810: {
! 1811: size_t i;
! 1812: for (i = 0; i < (output_buffer->depth - 1); i++)
! 1813: {
! 1814: *output_pointer++ = '\t';
! 1815: }
! 1816: }
! 1817: *output_pointer++ = '}';
! 1818: *output_pointer = '\0';
! 1819: output_buffer->depth--;
! 1820:
! 1821: return true;
! 1822: }
! 1823:
! 1824: /* Get Array size/item / object item. */
! 1825: CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
! 1826: {
! 1827: cJSON *child = NULL;
! 1828: size_t size = 0;
! 1829:
! 1830: if (array == NULL)
! 1831: {
! 1832: return 0;
! 1833: }
! 1834:
! 1835: child = array->child;
! 1836:
! 1837: while(child != NULL)
! 1838: {
! 1839: size++;
! 1840: child = child->next;
! 1841: }
! 1842:
! 1843: /* FIXME: Can overflow here. Cannot be fixed without breaking the API */
! 1844:
! 1845: return (int)size;
! 1846: }
! 1847:
! 1848: static cJSON* get_array_item(const cJSON *array, size_t index)
! 1849: {
! 1850: cJSON *current_child = NULL;
! 1851:
! 1852: if (array == NULL)
! 1853: {
! 1854: return NULL;
! 1855: }
! 1856:
! 1857: current_child = array->child;
! 1858: while ((current_child != NULL) && (index > 0))
! 1859: {
! 1860: index--;
! 1861: current_child = current_child->next;
! 1862: }
! 1863:
! 1864: return current_child;
! 1865: }
! 1866:
! 1867: CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index)
! 1868: {
! 1869: if (index < 0)
! 1870: {
! 1871: return NULL;
! 1872: }
! 1873:
! 1874: return get_array_item(array, (size_t)index);
! 1875: }
! 1876:
! 1877: static cJSON *get_object_item(const cJSON * const object, const char * const name, const cJSON_bool case_sensitive)
! 1878: {
! 1879: cJSON *current_element = NULL;
! 1880:
! 1881: if ((object == NULL) || (name == NULL))
! 1882: {
! 1883: return NULL;
! 1884: }
! 1885:
! 1886: current_element = object->child;
! 1887: if (case_sensitive)
! 1888: {
! 1889: while ((current_element != NULL) && (current_element->string != NULL) && (strcmp(name, current_element->string) != 0))
! 1890: {
! 1891: current_element = current_element->next;
! 1892: }
! 1893: }
! 1894: else
! 1895: {
! 1896: while ((current_element != NULL) && (case_insensitive_strcmp((const unsigned char*)name, (const unsigned char*)(current_element->string)) != 0))
! 1897: {
! 1898: current_element = current_element->next;
! 1899: }
! 1900: }
! 1901:
! 1902: if ((current_element == NULL) || (current_element->string == NULL)) {
! 1903: return NULL;
! 1904: }
! 1905:
! 1906: return current_element;
! 1907: }
! 1908:
! 1909: CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string)
! 1910: {
! 1911: return get_object_item(object, string, false);
! 1912: }
! 1913:
! 1914: CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string)
! 1915: {
! 1916: return get_object_item(object, string, true);
! 1917: }
! 1918:
! 1919: CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string)
! 1920: {
! 1921: return cJSON_GetObjectItem(object, string) ? 1 : 0;
! 1922: }
! 1923:
! 1924: /* Utility for array list handling. */
! 1925: static void suffix_object(cJSON *prev, cJSON *item)
! 1926: {
! 1927: prev->next = item;
! 1928: item->prev = prev;
! 1929: }
! 1930:
! 1931: /* Utility for handling references. */
! 1932: static cJSON *create_reference(const cJSON *item, const internal_hooks * const hooks)
! 1933: {
! 1934: cJSON *reference = NULL;
! 1935: if (item == NULL)
! 1936: {
! 1937: return NULL;
! 1938: }
! 1939:
! 1940: reference = cJSON_New_Item(hooks);
! 1941: if (reference == NULL)
! 1942: {
! 1943: return NULL;
! 1944: }
! 1945:
! 1946: memcpy(reference, item, sizeof(cJSON));
! 1947: reference->string = NULL;
! 1948: reference->type |= cJSON_IsReference;
! 1949: reference->next = reference->prev = NULL;
! 1950: return reference;
! 1951: }
! 1952:
! 1953: static cJSON_bool add_item_to_array(cJSON *array, cJSON *item)
! 1954: {
! 1955: cJSON *child = NULL;
! 1956:
! 1957: if ((item == NULL) || (array == NULL) || (array == item))
! 1958: {
! 1959: return false;
! 1960: }
! 1961:
! 1962: child = array->child;
! 1963: /*
! 1964: * To find the last item in array quickly, we use prev in array
! 1965: */
! 1966: if (child == NULL)
! 1967: {
! 1968: /* list is empty, start new one */
! 1969: array->child = item;
! 1970: item->prev = item;
! 1971: item->next = NULL;
! 1972: }
! 1973: else
! 1974: {
! 1975: /* append to the end */
! 1976: if (child->prev)
! 1977: {
! 1978: suffix_object(child->prev, item);
! 1979: array->child->prev = item;
! 1980: }
! 1981: else
! 1982: {
! 1983: while (child->next)
! 1984: {
! 1985: child = child->next;
! 1986: }
! 1987: suffix_object(child, item);
! 1988: array->child->prev = item;
! 1989: }
! 1990: }
! 1991:
! 1992: return true;
! 1993: }
! 1994:
! 1995: /* Add item to array/object. */
! 1996: CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item)
! 1997: {
! 1998: return add_item_to_array(array, item);
! 1999: }
! 2000:
! 2001: #if defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
! 2002: #pragma GCC diagnostic push
! 2003: #endif
! 2004: #ifdef __GNUC__
! 2005: #pragma GCC diagnostic ignored "-Wcast-qual"
! 2006: #endif
! 2007: /* helper function to cast away const */
! 2008: static void* cast_away_const(const void* string)
! 2009: {
! 2010: return (void*)string;
! 2011: }
! 2012: #if defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
! 2013: #pragma GCC diagnostic pop
! 2014: #endif
! 2015:
! 2016:
! 2017: static cJSON_bool add_item_to_object(cJSON * const object, const char * const string, cJSON * const item, const internal_hooks * const hooks, const cJSON_bool constant_key)
! 2018: {
! 2019: char *new_key = NULL;
! 2020: int new_type = cJSON_Invalid;
! 2021:
! 2022: if ((object == NULL) || (string == NULL) || (item == NULL) || (object == item))
! 2023: {
! 2024: return false;
! 2025: }
! 2026:
! 2027: if (constant_key)
! 2028: {
! 2029: new_key = (char*)cast_away_const(string);
! 2030: new_type = item->type | cJSON_StringIsConst;
! 2031: }
! 2032: else
! 2033: {
! 2034: new_key = (char*)cJSON_strdup((const unsigned char*)string, hooks);
! 2035: if (new_key == NULL)
! 2036: {
! 2037: return false;
! 2038: }
! 2039:
! 2040: new_type = item->type & ~cJSON_StringIsConst;
! 2041: }
! 2042:
! 2043: if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
! 2044: {
! 2045: hooks->deallocate(item->string);
! 2046: }
! 2047:
! 2048: item->string = new_key;
! 2049: item->type = new_type;
! 2050:
! 2051: return add_item_to_array(object, item);
! 2052: }
! 2053:
! 2054: CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
! 2055: {
! 2056: return add_item_to_object(object, string, item, &global_hooks, false);
! 2057: }
! 2058:
! 2059: /* Add an item to an object with constant string as key */
! 2060: CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
! 2061: {
! 2062: return add_item_to_object(object, string, item, &global_hooks, true);
! 2063: }
! 2064:
! 2065: CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
! 2066: {
! 2067: if (array == NULL)
! 2068: {
! 2069: return false;
! 2070: }
! 2071:
! 2072: return add_item_to_array(array, create_reference(item, &global_hooks));
! 2073: }
! 2074:
! 2075: CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
! 2076: {
! 2077: if ((object == NULL) || (string == NULL))
! 2078: {
! 2079: return false;
! 2080: }
! 2081:
! 2082: return add_item_to_object(object, string, create_reference(item, &global_hooks), &global_hooks, false);
! 2083: }
! 2084:
! 2085: CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name)
! 2086: {
! 2087: cJSON *null = cJSON_CreateNull();
! 2088: if (add_item_to_object(object, name, null, &global_hooks, false))
! 2089: {
! 2090: return null;
! 2091: }
! 2092:
! 2093: cJSON_Delete(null);
! 2094: return NULL;
! 2095: }
! 2096:
! 2097: CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name)
! 2098: {
! 2099: cJSON *true_item = cJSON_CreateTrue();
! 2100: if (add_item_to_object(object, name, true_item, &global_hooks, false))
! 2101: {
! 2102: return true_item;
! 2103: }
! 2104:
! 2105: cJSON_Delete(true_item);
! 2106: return NULL;
! 2107: }
! 2108:
! 2109: CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name)
! 2110: {
! 2111: cJSON *false_item = cJSON_CreateFalse();
! 2112: if (add_item_to_object(object, name, false_item, &global_hooks, false))
! 2113: {
! 2114: return false_item;
! 2115: }
! 2116:
! 2117: cJSON_Delete(false_item);
! 2118: return NULL;
! 2119: }
! 2120:
! 2121: CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean)
! 2122: {
! 2123: cJSON *bool_item = cJSON_CreateBool(boolean);
! 2124: if (add_item_to_object(object, name, bool_item, &global_hooks, false))
! 2125: {
! 2126: return bool_item;
! 2127: }
! 2128:
! 2129: cJSON_Delete(bool_item);
! 2130: return NULL;
! 2131: }
! 2132:
! 2133: CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number)
! 2134: {
! 2135: cJSON *number_item = cJSON_CreateNumber(number);
! 2136: if (add_item_to_object(object, name, number_item, &global_hooks, false))
! 2137: {
! 2138: return number_item;
! 2139: }
! 2140:
! 2141: cJSON_Delete(number_item);
! 2142: return NULL;
! 2143: }
! 2144:
! 2145: CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string)
! 2146: {
! 2147: cJSON *string_item = cJSON_CreateString(string);
! 2148: if (add_item_to_object(object, name, string_item, &global_hooks, false))
! 2149: {
! 2150: return string_item;
! 2151: }
! 2152:
! 2153: cJSON_Delete(string_item);
! 2154: return NULL;
! 2155: }
! 2156:
! 2157: CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw)
! 2158: {
! 2159: cJSON *raw_item = cJSON_CreateRaw(raw);
! 2160: if (add_item_to_object(object, name, raw_item, &global_hooks, false))
! 2161: {
! 2162: return raw_item;
! 2163: }
! 2164:
! 2165: cJSON_Delete(raw_item);
! 2166: return NULL;
! 2167: }
! 2168:
! 2169: CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name)
! 2170: {
! 2171: cJSON *object_item = cJSON_CreateObject();
! 2172: if (add_item_to_object(object, name, object_item, &global_hooks, false))
! 2173: {
! 2174: return object_item;
! 2175: }
! 2176:
! 2177: cJSON_Delete(object_item);
! 2178: return NULL;
! 2179: }
! 2180:
! 2181: CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name)
! 2182: {
! 2183: cJSON *array = cJSON_CreateArray();
! 2184: if (add_item_to_object(object, name, array, &global_hooks, false))
! 2185: {
! 2186: return array;
! 2187: }
! 2188:
! 2189: cJSON_Delete(array);
! 2190: return NULL;
! 2191: }
! 2192:
! 2193: CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item)
! 2194: {
! 2195: if ((parent == NULL) || (item == NULL))
! 2196: {
! 2197: return NULL;
! 2198: }
! 2199:
! 2200: if (item != parent->child)
! 2201: {
! 2202: /* not the first element */
! 2203: item->prev->next = item->next;
! 2204: }
! 2205: if (item->next != NULL)
! 2206: {
! 2207: /* not the last element */
! 2208: item->next->prev = item->prev;
! 2209: }
! 2210:
! 2211: if (item == parent->child)
! 2212: {
! 2213: /* first element */
! 2214: parent->child = item->next;
! 2215: }
! 2216: /* make sure the detached item doesn't point anywhere anymore */
! 2217: item->prev = NULL;
! 2218: item->next = NULL;
! 2219:
! 2220: return item;
! 2221: }
! 2222:
! 2223: CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which)
! 2224: {
! 2225: if (which < 0)
! 2226: {
! 2227: return NULL;
! 2228: }
! 2229:
! 2230: return cJSON_DetachItemViaPointer(array, get_array_item(array, (size_t)which));
! 2231: }
! 2232:
! 2233: CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which)
! 2234: {
! 2235: cJSON_Delete(cJSON_DetachItemFromArray(array, which));
! 2236: }
! 2237:
! 2238: CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string)
! 2239: {
! 2240: cJSON *to_detach = cJSON_GetObjectItem(object, string);
! 2241:
! 2242: return cJSON_DetachItemViaPointer(object, to_detach);
! 2243: }
! 2244:
! 2245: CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string)
! 2246: {
! 2247: cJSON *to_detach = cJSON_GetObjectItemCaseSensitive(object, string);
! 2248:
! 2249: return cJSON_DetachItemViaPointer(object, to_detach);
! 2250: }
! 2251:
! 2252: CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string)
! 2253: {
! 2254: cJSON_Delete(cJSON_DetachItemFromObject(object, string));
! 2255: }
! 2256:
! 2257: CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string)
! 2258: {
! 2259: cJSON_Delete(cJSON_DetachItemFromObjectCaseSensitive(object, string));
! 2260: }
! 2261:
! 2262: /* Replace array/object items with new ones. */
! 2263: CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
! 2264: {
! 2265: cJSON *after_inserted = NULL;
! 2266:
! 2267: if (which < 0)
! 2268: {
! 2269: return false;
! 2270: }
! 2271:
! 2272: after_inserted = get_array_item(array, (size_t)which);
! 2273: if (after_inserted == NULL)
! 2274: {
! 2275: return add_item_to_array(array, newitem);
! 2276: }
! 2277:
! 2278: newitem->next = after_inserted;
! 2279: newitem->prev = after_inserted->prev;
! 2280: after_inserted->prev = newitem;
! 2281: if (after_inserted == array->child)
! 2282: {
! 2283: array->child = newitem;
! 2284: }
! 2285: else
! 2286: {
! 2287: newitem->prev->next = newitem;
! 2288: }
! 2289: return true;
! 2290: }
! 2291:
! 2292: CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement)
! 2293: {
! 2294: if ((parent == NULL) || (replacement == NULL) || (item == NULL))
! 2295: {
! 2296: return false;
! 2297: }
! 2298:
! 2299: if (replacement == item)
! 2300: {
! 2301: return true;
! 2302: }
! 2303:
! 2304: replacement->next = item->next;
! 2305: replacement->prev = item->prev;
! 2306:
! 2307: if (replacement->next != NULL)
! 2308: {
! 2309: replacement->next->prev = replacement;
! 2310: }
! 2311: if (parent->child == item)
! 2312: {
! 2313: parent->child = replacement;
! 2314: }
! 2315: else
! 2316: { /*
! 2317: * To find the last item in array quickly, we use prev in array.
! 2318: * We can't modify the last item's next pointer where this item was the parent's child
! 2319: */
! 2320: if (replacement->prev != NULL)
! 2321: {
! 2322: replacement->prev->next = replacement;
! 2323: }
! 2324: }
! 2325:
! 2326: item->next = NULL;
! 2327: item->prev = NULL;
! 2328: cJSON_Delete(item);
! 2329:
! 2330: return true;
! 2331: }
! 2332:
! 2333: CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
! 2334: {
! 2335: if (which < 0)
! 2336: {
! 2337: return false;
! 2338: }
! 2339:
! 2340: return cJSON_ReplaceItemViaPointer(array, get_array_item(array, (size_t)which), newitem);
! 2341: }
! 2342:
! 2343: static cJSON_bool replace_item_in_object(cJSON *object, const char *string, cJSON *replacement, cJSON_bool case_sensitive)
! 2344: {
! 2345: if ((replacement == NULL) || (string == NULL))
! 2346: {
! 2347: return false;
! 2348: }
! 2349:
! 2350: /* replace the name in the replacement */
! 2351: if (!(replacement->type & cJSON_StringIsConst) && (replacement->string != NULL))
! 2352: {
! 2353: cJSON_free(replacement->string);
! 2354: }
! 2355: replacement->string = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
! 2356: replacement->type &= ~cJSON_StringIsConst;
! 2357:
! 2358: return cJSON_ReplaceItemViaPointer(object, get_object_item(object, string, case_sensitive), replacement);
! 2359: }
! 2360:
! 2361: CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
! 2362: {
! 2363: return replace_item_in_object(object, string, newitem, false);
! 2364: }
! 2365:
! 2366: CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object, const char *string, cJSON *newitem)
! 2367: {
! 2368: return replace_item_in_object(object, string, newitem, true);
! 2369: }
! 2370:
! 2371: /* Create basic types: */
! 2372: CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void)
! 2373: {
! 2374: cJSON *item = cJSON_New_Item(&global_hooks);
! 2375: if(item)
! 2376: {
! 2377: item->type = cJSON_NULL;
! 2378: }
! 2379:
! 2380: return item;
! 2381: }
! 2382:
! 2383: CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void)
! 2384: {
! 2385: cJSON *item = cJSON_New_Item(&global_hooks);
! 2386: if(item)
! 2387: {
! 2388: item->type = cJSON_True;
! 2389: }
! 2390:
! 2391: return item;
! 2392: }
! 2393:
! 2394: CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void)
! 2395: {
! 2396: cJSON *item = cJSON_New_Item(&global_hooks);
! 2397: if(item)
! 2398: {
! 2399: item->type = cJSON_False;
! 2400: }
! 2401:
! 2402: return item;
! 2403: }
! 2404:
! 2405: CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean)
! 2406: {
! 2407: cJSON *item = cJSON_New_Item(&global_hooks);
! 2408: if(item)
! 2409: {
! 2410: item->type = boolean ? cJSON_True : cJSON_False;
! 2411: }
! 2412:
! 2413: return item;
! 2414: }
! 2415:
! 2416: CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num)
! 2417: {
! 2418: cJSON *item = cJSON_New_Item(&global_hooks);
! 2419: if(item)
! 2420: {
! 2421: item->type = cJSON_Number;
! 2422: item->valuedouble = num;
! 2423:
! 2424: /* use saturation in case of overflow */
! 2425: if (num >= LLONG_MAX)
! 2426: {
! 2427: item->valueint = LLONG_MAX;
! 2428: }
! 2429: else if (num <= (double)LLONG_MIN)
! 2430: {
! 2431: item->valueint = LLONG_MIN;
! 2432: }
! 2433: else
! 2434: {
! 2435: item->valueint = (int64_t)num;
! 2436: }
! 2437: }
! 2438:
! 2439: return item;
! 2440: }
! 2441:
! 2442: CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string)
! 2443: {
! 2444: cJSON *item = cJSON_New_Item(&global_hooks);
! 2445: if(item)
! 2446: {
! 2447: item->type = cJSON_String;
! 2448: item->valuestring = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
! 2449: if(!item->valuestring)
! 2450: {
! 2451: cJSON_Delete(item);
! 2452: return NULL;
! 2453: }
! 2454: }
! 2455:
! 2456: return item;
! 2457: }
! 2458:
! 2459: CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string)
! 2460: {
! 2461: cJSON *item = cJSON_New_Item(&global_hooks);
! 2462: if (item != NULL)
! 2463: {
! 2464: item->type = cJSON_String | cJSON_IsReference;
! 2465: item->valuestring = (char*)cast_away_const(string);
! 2466: }
! 2467:
! 2468: return item;
! 2469: }
! 2470:
! 2471: CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child)
! 2472: {
! 2473: cJSON *item = cJSON_New_Item(&global_hooks);
! 2474: if (item != NULL) {
! 2475: item->type = cJSON_Object | cJSON_IsReference;
! 2476: item->child = (cJSON*)cast_away_const(child);
! 2477: }
! 2478:
! 2479: return item;
! 2480: }
! 2481:
! 2482: CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child) {
! 2483: cJSON *item = cJSON_New_Item(&global_hooks);
! 2484: if (item != NULL) {
! 2485: item->type = cJSON_Array | cJSON_IsReference;
! 2486: item->child = (cJSON*)cast_away_const(child);
! 2487: }
! 2488:
! 2489: return item;
! 2490: }
! 2491:
! 2492: CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw)
! 2493: {
! 2494: cJSON *item = cJSON_New_Item(&global_hooks);
! 2495: if(item)
! 2496: {
! 2497: item->type = cJSON_Raw;
! 2498: item->valuestring = (char*)cJSON_strdup((const unsigned char*)raw, &global_hooks);
! 2499: if(!item->valuestring)
! 2500: {
! 2501: cJSON_Delete(item);
! 2502: return NULL;
! 2503: }
! 2504: }
! 2505:
! 2506: return item;
! 2507: }
! 2508:
! 2509: CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void)
! 2510: {
! 2511: cJSON *item = cJSON_New_Item(&global_hooks);
! 2512: if(item)
! 2513: {
! 2514: item->type=cJSON_Array;
! 2515: }
! 2516:
! 2517: return item;
! 2518: }
! 2519:
! 2520: CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void)
! 2521: {
! 2522: cJSON *item = cJSON_New_Item(&global_hooks);
! 2523: if (item)
! 2524: {
! 2525: item->type = cJSON_Object;
! 2526: }
! 2527:
! 2528: return item;
! 2529: }
! 2530:
! 2531: /* Create Arrays: */
! 2532: CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count)
! 2533: {
! 2534: size_t i = 0;
! 2535: cJSON *n = NULL;
! 2536: cJSON *p = NULL;
! 2537: cJSON *a = NULL;
! 2538:
! 2539: if ((count < 0) || (numbers == NULL))
! 2540: {
! 2541: return NULL;
! 2542: }
! 2543:
! 2544: a = cJSON_CreateArray();
! 2545: for(i = 0; a && (i < (size_t)count); i++)
! 2546: {
! 2547: n = cJSON_CreateNumber(numbers[i]);
! 2548: if (!n)
! 2549: {
! 2550: cJSON_Delete(a);
! 2551: return NULL;
! 2552: }
! 2553: if(!i)
! 2554: {
! 2555: a->child = n;
! 2556: }
! 2557: else
! 2558: {
! 2559: suffix_object(p, n);
! 2560: }
! 2561: p = n;
! 2562: }
! 2563:
! 2564: return a;
! 2565: }
! 2566:
! 2567: CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count)
! 2568: {
! 2569: size_t i = 0;
! 2570: cJSON *n = NULL;
! 2571: cJSON *p = NULL;
! 2572: cJSON *a = NULL;
! 2573:
! 2574: if ((count < 0) || (numbers == NULL))
! 2575: {
! 2576: return NULL;
! 2577: }
! 2578:
! 2579: a = cJSON_CreateArray();
! 2580:
! 2581: for(i = 0; a && (i < (size_t)count); i++)
! 2582: {
! 2583: n = cJSON_CreateNumber((double)numbers[i]);
! 2584: if(!n)
! 2585: {
! 2586: cJSON_Delete(a);
! 2587: return NULL;
! 2588: }
! 2589: if(!i)
! 2590: {
! 2591: a->child = n;
! 2592: }
! 2593: else
! 2594: {
! 2595: suffix_object(p, n);
! 2596: }
! 2597: p = n;
! 2598: }
! 2599:
! 2600: return a;
! 2601: }
! 2602:
! 2603: CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count)
! 2604: {
! 2605: size_t i = 0;
! 2606: cJSON *n = NULL;
! 2607: cJSON *p = NULL;
! 2608: cJSON *a = NULL;
! 2609:
! 2610: if ((count < 0) || (numbers == NULL))
! 2611: {
! 2612: return NULL;
! 2613: }
! 2614:
! 2615: a = cJSON_CreateArray();
! 2616:
! 2617: for(i = 0;a && (i < (size_t)count); i++)
! 2618: {
! 2619: n = cJSON_CreateNumber(numbers[i]);
! 2620: if(!n)
! 2621: {
! 2622: cJSON_Delete(a);
! 2623: return NULL;
! 2624: }
! 2625: if(!i)
! 2626: {
! 2627: a->child = n;
! 2628: }
! 2629: else
! 2630: {
! 2631: suffix_object(p, n);
! 2632: }
! 2633: p = n;
! 2634: }
! 2635:
! 2636: return a;
! 2637: }
! 2638:
! 2639: CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count)
! 2640: {
! 2641: size_t i = 0;
! 2642: cJSON *n = NULL;
! 2643: cJSON *p = NULL;
! 2644: cJSON *a = NULL;
! 2645:
! 2646: if ((count < 0) || (strings == NULL))
! 2647: {
! 2648: return NULL;
! 2649: }
! 2650:
! 2651: a = cJSON_CreateArray();
! 2652:
! 2653: for (i = 0; a && (i < (size_t)count); i++)
! 2654: {
! 2655: n = cJSON_CreateString(strings[i]);
! 2656: if(!n)
! 2657: {
! 2658: cJSON_Delete(a);
! 2659: return NULL;
! 2660: }
! 2661: if(!i)
! 2662: {
! 2663: a->child = n;
! 2664: }
! 2665: else
! 2666: {
! 2667: suffix_object(p,n);
! 2668: }
! 2669: p = n;
! 2670: }
! 2671:
! 2672: return a;
! 2673: }
! 2674:
! 2675: /* Duplication */
! 2676: CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse)
! 2677: {
! 2678: cJSON *newitem = NULL;
! 2679: cJSON *child = NULL;
! 2680: cJSON *next = NULL;
! 2681: cJSON *newchild = NULL;
! 2682:
! 2683: /* Bail on bad ptr */
! 2684: if (!item)
! 2685: {
! 2686: goto fail;
! 2687: }
! 2688: /* Create new item */
! 2689: newitem = cJSON_New_Item(&global_hooks);
! 2690: if (!newitem)
! 2691: {
! 2692: goto fail;
! 2693: }
! 2694: /* Copy over all vars */
! 2695: newitem->type = item->type & (~cJSON_IsReference);
! 2696: newitem->valueint = item->valueint;
! 2697: newitem->valuedouble = item->valuedouble;
! 2698: if (item->valuestring)
! 2699: {
! 2700: newitem->valuestring = (char*)cJSON_strdup((unsigned char*)item->valuestring, &global_hooks);
! 2701: if (!newitem->valuestring)
! 2702: {
! 2703: goto fail;
! 2704: }
! 2705: }
! 2706: if (item->string)
! 2707: {
! 2708: newitem->string = (item->type&cJSON_StringIsConst) ? item->string : (char*)cJSON_strdup((unsigned char*)item->string, &global_hooks);
! 2709: if (!newitem->string)
! 2710: {
! 2711: goto fail;
! 2712: }
! 2713: }
! 2714: /* If non-recursive, then we're done! */
! 2715: if (!recurse)
! 2716: {
! 2717: return newitem;
! 2718: }
! 2719: /* Walk the ->next chain for the child. */
! 2720: child = item->child;
! 2721: while (child != NULL)
! 2722: {
! 2723: newchild = cJSON_Duplicate(child, true); /* Duplicate (with recurse) each item in the ->next chain */
! 2724: if (!newchild)
! 2725: {
! 2726: goto fail;
! 2727: }
! 2728: if (next != NULL)
! 2729: {
! 2730: /* If newitem->child already set, then crosswire ->prev and ->next and move on */
! 2731: next->next = newchild;
! 2732: newchild->prev = next;
! 2733: next = newchild;
! 2734: }
! 2735: else
! 2736: {
! 2737: /* Set newitem->child and move to it */
! 2738: newitem->child = newchild;
! 2739: next = newchild;
! 2740: }
! 2741: child = child->next;
! 2742: }
! 2743:
! 2744: return newitem;
! 2745:
! 2746: fail:
! 2747: if (newitem != NULL)
! 2748: {
! 2749: cJSON_Delete(newitem);
! 2750: }
! 2751:
! 2752: return NULL;
! 2753: }
! 2754:
! 2755: static void skip_oneline_comment(char **input)
! 2756: {
! 2757: *input += static_strlen("//");
! 2758:
! 2759: for (; (*input)[0] != '\0'; ++(*input))
! 2760: {
! 2761: if ((*input)[0] == '\n') {
! 2762: *input += static_strlen("\n");
! 2763: return;
! 2764: }
! 2765: }
! 2766: }
! 2767:
! 2768: static void skip_multiline_comment(char **input)
! 2769: {
! 2770: *input += static_strlen("/*");
! 2771:
! 2772: for (; (*input)[0] != '\0'; ++(*input))
! 2773: {
! 2774: if (((*input)[0] == '*') && ((*input)[1] == '/'))
! 2775: {
! 2776: *input += static_strlen("*/");
! 2777: return;
! 2778: }
! 2779: }
! 2780: }
! 2781:
! 2782: static void minify_string(char **input, char **output) {
! 2783: (*output)[0] = (*input)[0];
! 2784: *input += static_strlen("\"");
! 2785: *output += static_strlen("\"");
! 2786:
! 2787:
! 2788: for (; (*input)[0] != '\0'; (void)++(*input), ++(*output)) {
! 2789: (*output)[0] = (*input)[0];
! 2790:
! 2791: if ((*input)[0] == '\"') {
! 2792: (*output)[0] = '\"';
! 2793: *input += static_strlen("\"");
! 2794: *output += static_strlen("\"");
! 2795: return;
! 2796: } else if (((*input)[0] == '\\') && ((*input)[1] == '\"')) {
! 2797: (*output)[1] = (*input)[1];
! 2798: *input += static_strlen("\"");
! 2799: *output += static_strlen("\"");
! 2800: }
! 2801: }
! 2802: }
! 2803:
! 2804: CJSON_PUBLIC(void) cJSON_Minify(char *json)
! 2805: {
! 2806: char *into = json;
! 2807:
! 2808: if (json == NULL)
! 2809: {
! 2810: return;
! 2811: }
! 2812:
! 2813: while (json[0] != '\0')
! 2814: {
! 2815: switch (json[0])
! 2816: {
! 2817: case ' ':
! 2818: case '\t':
! 2819: case '\r':
! 2820: case '\n':
! 2821: json++;
! 2822: break;
! 2823:
! 2824: case '/':
! 2825: if (json[1] == '/')
! 2826: {
! 2827: skip_oneline_comment(&json);
! 2828: }
! 2829: else if (json[1] == '*')
! 2830: {
! 2831: skip_multiline_comment(&json);
! 2832: } else {
! 2833: json++;
! 2834: }
! 2835: break;
! 2836:
! 2837: case '\"':
! 2838: minify_string(&json, (char**)&into);
! 2839: break;
! 2840:
! 2841: default:
! 2842: into[0] = json[0];
! 2843: json++;
! 2844: into++;
! 2845: }
! 2846: }
! 2847:
! 2848: /* and null-terminate. */
! 2849: *into = '\0';
! 2850: }
! 2851:
! 2852: CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item)
! 2853: {
! 2854: if (item == NULL)
! 2855: {
! 2856: return false;
! 2857: }
! 2858:
! 2859: return (item->type & 0xFF) == cJSON_Invalid;
! 2860: }
! 2861:
! 2862: CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item)
! 2863: {
! 2864: if (item == NULL)
! 2865: {
! 2866: return false;
! 2867: }
! 2868:
! 2869: return (item->type & 0xFF) == cJSON_False;
! 2870: }
! 2871:
! 2872: CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item)
! 2873: {
! 2874: if (item == NULL)
! 2875: {
! 2876: return false;
! 2877: }
! 2878:
! 2879: return (item->type & 0xff) == cJSON_True;
! 2880: }
! 2881:
! 2882:
! 2883: CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item)
! 2884: {
! 2885: if (item == NULL)
! 2886: {
! 2887: return false;
! 2888: }
! 2889:
! 2890: return (item->type & (cJSON_True | cJSON_False)) != 0;
! 2891: }
! 2892: CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item)
! 2893: {
! 2894: if (item == NULL)
! 2895: {
! 2896: return false;
! 2897: }
! 2898:
! 2899: return (item->type & 0xFF) == cJSON_NULL;
! 2900: }
! 2901:
! 2902: CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item)
! 2903: {
! 2904: if (item == NULL)
! 2905: {
! 2906: return false;
! 2907: }
! 2908:
! 2909: return (item->type & 0xFF) == cJSON_Number;
! 2910: }
! 2911:
! 2912: CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item)
! 2913: {
! 2914: if (item == NULL)
! 2915: {
! 2916: return false;
! 2917: }
! 2918:
! 2919: return (item->type & 0xFF) == cJSON_String;
! 2920: }
! 2921:
! 2922: CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item)
! 2923: {
! 2924: if (item == NULL)
! 2925: {
! 2926: return false;
! 2927: }
! 2928:
! 2929: return (item->type & 0xFF) == cJSON_Array;
! 2930: }
! 2931:
! 2932: CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item)
! 2933: {
! 2934: if (item == NULL)
! 2935: {
! 2936: return false;
! 2937: }
! 2938:
! 2939: return (item->type & 0xFF) == cJSON_Object;
! 2940: }
! 2941:
! 2942: CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item)
! 2943: {
! 2944: if (item == NULL)
! 2945: {
! 2946: return false;
! 2947: }
! 2948:
! 2949: return (item->type & 0xFF) == cJSON_Raw;
! 2950: }
! 2951:
! 2952: CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive)
! 2953: {
! 2954: if ((a == NULL) || (b == NULL) || ((a->type & 0xFF) != (b->type & 0xFF)) || cJSON_IsInvalid(a))
! 2955: {
! 2956: return false;
! 2957: }
! 2958:
! 2959: /* check if type is valid */
! 2960: switch (a->type & 0xFF)
! 2961: {
! 2962: case cJSON_False:
! 2963: case cJSON_True:
! 2964: case cJSON_NULL:
! 2965: case cJSON_Number:
! 2966: case cJSON_String:
! 2967: case cJSON_Raw:
! 2968: case cJSON_Array:
! 2969: case cJSON_Object:
! 2970: break;
! 2971:
! 2972: default:
! 2973: return false;
! 2974: }
! 2975:
! 2976: /* identical objects are equal */
! 2977: if (a == b)
! 2978: {
! 2979: return true;
! 2980: }
! 2981:
! 2982: switch (a->type & 0xFF)
! 2983: {
! 2984: /* in these cases and equal type is enough */
! 2985: case cJSON_False:
! 2986: case cJSON_True:
! 2987: case cJSON_NULL:
! 2988: return true;
! 2989:
! 2990: case cJSON_Number:
! 2991: if (compare_double(a->valuedouble, b->valuedouble))
! 2992: {
! 2993: return true;
! 2994: }
! 2995: return false;
! 2996:
! 2997: case cJSON_String:
! 2998: case cJSON_Raw:
! 2999: if ((a->valuestring == NULL) || (b->valuestring == NULL))
! 3000: {
! 3001: return false;
! 3002: }
! 3003: if (strcmp(a->valuestring, b->valuestring) == 0)
! 3004: {
! 3005: return true;
! 3006: }
! 3007:
! 3008: return false;
! 3009:
! 3010: case cJSON_Array:
! 3011: {
! 3012: cJSON *a_element = a->child;
! 3013: cJSON *b_element = b->child;
! 3014:
! 3015: for (; (a_element != NULL) && (b_element != NULL);)
! 3016: {
! 3017: if (!cJSON_Compare(a_element, b_element, case_sensitive))
! 3018: {
! 3019: return false;
! 3020: }
! 3021:
! 3022: a_element = a_element->next;
! 3023: b_element = b_element->next;
! 3024: }
! 3025:
! 3026: /* one of the arrays is longer than the other */
! 3027: if (a_element != b_element) {
! 3028: return false;
! 3029: }
! 3030:
! 3031: return true;
! 3032: }
! 3033:
! 3034: case cJSON_Object:
! 3035: {
! 3036: cJSON *a_element = NULL;
! 3037: cJSON *b_element = NULL;
! 3038: cJSON_ArrayForEach(a_element, a)
! 3039: {
! 3040: /* TODO This has O(n^2) runtime, which is horrible! */
! 3041: b_element = get_object_item(b, a_element->string, case_sensitive);
! 3042: if (b_element == NULL)
! 3043: {
! 3044: return false;
! 3045: }
! 3046:
! 3047: if (!cJSON_Compare(a_element, b_element, case_sensitive))
! 3048: {
! 3049: return false;
! 3050: }
! 3051: }
! 3052:
! 3053: /* doing this twice, once on a and b to prevent true comparison if a subset of b
! 3054: * TODO: Do this the proper way, this is just a fix for now */
! 3055: cJSON_ArrayForEach(b_element, b)
! 3056: {
! 3057: a_element = get_object_item(a, b_element->string, case_sensitive);
! 3058: if (a_element == NULL)
! 3059: {
! 3060: return false;
! 3061: }
! 3062:
! 3063: if (!cJSON_Compare(b_element, a_element, case_sensitive))
! 3064: {
! 3065: return false;
! 3066: }
! 3067: }
! 3068:
! 3069: return true;
! 3070: }
! 3071:
! 3072: default:
! 3073: return false;
! 3074: }
! 3075: }
! 3076:
! 3077: CJSON_PUBLIC(void *) cJSON_malloc(size_t size)
! 3078: {
! 3079: return global_hooks.allocate(size);
! 3080: }
! 3081:
! 3082: CJSON_PUBLIC(void) cJSON_free(void *object)
1.1 misho 3083: {
1.1.1.2 ! misho 3084: global_hooks.deallocate(object);
1.1 misho 3085: }
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