1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813181418151816181718181819182018211822182318241825182618271828182918301831183218331834183518361837183818391840184118421843184418451846184718481849185018511852185318541855185618571858185918601861186218631864186518661867186818691870187118721873187418751876187718781879188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933193419351936193719381939194019411942194319441945194619471948194919501951195219531954195519561957195819591960196119621963196419651966196719681969197019711972197319741975197619771978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026202720282029203020312032203320342035203620372038203920402041204220432044204520462047204820492050205120522053205420552056205720582059206020612062206320642065206620672068206920702071207220732074207520762077207820792080208120822083208420852086208720882089209020912092209320942095209620972098209921002101210221032104210521062107210821092110211121122113211421152116211721182119212021212122212321242125212621272128212921302131213221332134213521362137213821392140214121422143214421452146214721482149215021512152215321542155215621572158215921602161216221632164216521662167216821692170217121722173217421752176217721782179218021812182218321842185218621872188218921902191219221932194219521962197219821992200220122022203220422052206220722082209221022112212221322142215221622172218221922202221222222232224222522262227222822292230223122322233223422352236223722382239224022412242224322442245224622472248224922502251225222532254225522562257225822592260226122622263226422652266226722682269227022712272227322742275227622772278227922802281228222832284228522862287228822892290229122922293229422952296229722982299230023012302230323042305230623072308230923102311231223132314231523162317231823192320232123222323232423252326232723282329233023312332233323342335233623372338233923402341234223432344234523462347234823492350235123522353235423552356235723582359236023612362236323642365236623672368236923702371237223732374237523762377237823792380238123822383238423852386238723882389239023912392239323942395239623972398239924002401240224032404240524062407240824092410241124122413241424152416241724182419242024212422242324242425242624272428242924302431243224332434243524362437243824392440244124422443244424452446244724482449245024512452245324542455245624572458245924602461246224632464246524662467246824692470247124722473247424752476247724782479248024812482248324842485248624872488248924902491249224932494249524962497249824992500250125022503250425052506250725082509251025112512251325142515251625172518251925202521252225232524252525262527252825292530253125322533253425352536253725382539254025412542254325442545254625472548254925502551255225532554255525562557255825592560256125622563256425652566256725682569257025712572257325742575257625772578257925802581258225832584258525862587258825892590259125922593259425952596259725982599260026012602260326042605260626072608260926102611261226132614261526162617261826192620262126222623262426252626262726282629263026312632263326342635263626372638263926402641264226432644264526462647264826492650265126522653265426552656265726582659266026612662266326642665266626672668266926702671267226732674267526762677267826792680268126822683268426852686268726882689269026912692269326942695269626972698269927002701270227032704270527062707270827092710271127122713271427152716271727182719272027212722272327242725272627272728272927302731273227332734273527362737273827392740274127422743274427452746274727482749275027512752275327542755275627572758275927602761276227632764276527662767276827692770277127722773277427752776277727782779278027812782278327842785278627872788278927902791279227932794279527962797279827992800280128022803280428052806280728082809281028112812281328142815281628172818281928202821282228232824282528262827282828292830283128322833283428352836283728382839284028412842284328442845284628472848284928502851285228532854285528562857285828592860286128622863286428652866286728682869287028712872287328742875287628772878287928802881288228832884288528862887288828892890289128922893289428952896289728982899290029012902290329042905290629072908290929102911291229132914291529162917291829192920292129222923292429252926292729282929293029312932293329342935293629372938293929402941294229432944294529462947294829492950295129522953295429552956295729582959296029612962296329642965296629672968296929702971297229732974297529762977297829792980298129822983298429852986298729882989299029912992299329942995299629972998299930003001300230033004300530063007300830093010301130123013301430153016301730183019302030213022302330243025302630273028302930303031303230333034303530363037303830393040304130423043304430453046304730483049305030513052305330543055305630573058305930603061306230633064306530663067306830693070307130723073307430753076307730783079308030813082308330843085308630873088308930903091309230933094309530963097 |
- /*
- Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
- Permission is hereby granted, free of charge, to any person obtaining a copy
- of this software and associated documentation files (the "Software"), to deal
- in the Software without restriction, including without limitation the rights
- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- copies of the Software, and to permit persons to whom the Software is
- furnished to do so, subject to the following conditions:
- The above copyright notice and this permission notice shall be included in
- all copies or substantial portions of the Software.
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- THE SOFTWARE.
- */
- /* cJSON */
- /* JSON parser in C. */
- /* disable warnings about old C89 functions in MSVC */
- #if !defined(_CRT_SECURE_NO_DEPRECATE) && defined(_MSC_VER)
- #define _CRT_SECURE_NO_DEPRECATE
- #endif
- #ifdef __GNUC__
- #pragma GCC visibility push(default)
- #endif
- #if defined(_MSC_VER)
- #pragma warning (push)
- /* disable warning about single line comments in system headers */
- #pragma warning (disable : 4001)
- #endif
- #include <string.h>
- #include <stdio.h>
- #include <math.h>
- #include <stdlib.h>
- #include <limits.h>
- #include <ctype.h>
- #include <float.h>
- #ifdef ENABLE_LOCALES
- #include <locale.h>
- #endif
- #if defined(_MSC_VER)
- #pragma warning (pop)
- #endif
- #ifdef __GNUC__
- #pragma GCC visibility pop
- #endif
- #include "cJSON.h"
- /* define our own boolean type */
- #ifdef true
- #undef true
- #endif
- #define true ((cJSON_bool)1)
- #ifdef false
- #undef false
- #endif
- #define false ((cJSON_bool)0)
- /* define isnan and isinf for ANSI C, if in C99 or above, isnan and isinf has been defined in math.h */
- #ifndef isinf
- #define isinf(d) (isnan((d - d)) && !isnan(d))
- #endif
- #ifndef isnan
- #define isnan(d) (d != d)
- #endif
- #ifndef NAN
- #define NAN 0.0/0.0
- #endif
- typedef struct {
- const unsigned char *json;
- size_t position;
- } error;
- static error global_error = { NULL, 0 };
- CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void)
- {
- return (const char*) (global_error.json + global_error.position);
- }
- CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON * const item)
- {
- if (!cJSON_IsString(item))
- {
- return NULL;
- }
- return item->valuestring;
- }
- CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item)
- {
- if (!cJSON_IsNumber(item))
- {
- return (double) NAN;
- }
- return item->valuedouble;
- }
- /* This is a safeguard to prevent copy-pasters from using incompatible C and header files */
- #if (CJSON_VERSION_MAJOR != 1) || (CJSON_VERSION_MINOR != 7) || (CJSON_VERSION_PATCH != 13)
- #error cJSON.h and cJSON.c have different versions. Make sure that both have the same.
- #endif
- CJSON_PUBLIC(const char*) cJSON_Version(void)
- {
- static char version[15];
- sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH);
- return version;
- }
- /* Case insensitive string comparison, doesn't consider two NULL pointers equal though */
- static int case_insensitive_strcmp(const unsigned char *string1, const unsigned char *string2)
- {
- if ((string1 == NULL) || (string2 == NULL))
- {
- return 1;
- }
- if (string1 == string2)
- {
- return 0;
- }
- for(; tolower(*string1) == tolower(*string2); (void)string1++, string2++)
- {
- if (*string1 == '\0')
- {
- return 0;
- }
- }
- return tolower(*string1) - tolower(*string2);
- }
- typedef struct internal_hooks
- {
- void *(CJSON_CDECL *allocate)(size_t size);
- void (CJSON_CDECL *deallocate)(void *pointer);
- void *(CJSON_CDECL *reallocate)(void *pointer, size_t size);
- } internal_hooks;
- #if 1//defined(_MSC_VER)
- /* work around MSVC error C2322: '...' address of dllimport '...' is not static */
- static void * CJSON_CDECL internal_malloc(size_t size)
- {
- return malloc(size);
- }
- static void CJSON_CDECL internal_free(void *pointer)
- {
- free(pointer);
- }
- static void * CJSON_CDECL internal_realloc(void *pointer, size_t size)
- {
- return realloc(pointer, size);
- }
- #else
- #include "aos/kernel.h"
- #define internal_malloc aos_malloc
- #define internal_free aos_free
- #define internal_realloc aos_realloc
- #endif
- /* strlen of character literals resolved at compile time */
- #define static_strlen(string_literal) (sizeof(string_literal) - sizeof(""))
- static internal_hooks global_hooks = { internal_malloc, internal_free, internal_realloc };
- static unsigned char* cJSON_strdup(const unsigned char* string, const internal_hooks * const hooks)
- {
- size_t length = 0;
- unsigned char *copy = NULL;
- if (string == NULL)
- {
- return NULL;
- }
- length = strlen((const char*)string) + sizeof("");
- copy = (unsigned char*)hooks->allocate(length);
- if (copy == NULL)
- {
- return NULL;
- }
- memcpy(copy, string, length);
- return copy;
- }
- CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks)
- {
- if (hooks == NULL)
- {
- /* Reset hooks */
- global_hooks.allocate = malloc;
- global_hooks.deallocate = free;
- global_hooks.reallocate = realloc;
- return;
- }
- global_hooks.allocate = malloc;
- if (hooks->malloc_fn != NULL)
- {
- global_hooks.allocate = hooks->malloc_fn;
- }
- global_hooks.deallocate = free;
- if (hooks->free_fn != NULL)
- {
- global_hooks.deallocate = hooks->free_fn;
- }
- /* use realloc only if both free and malloc are used */
- global_hooks.reallocate = NULL;
- if ((global_hooks.allocate == malloc) && (global_hooks.deallocate == free))
- {
- global_hooks.reallocate = realloc;
- }
- }
- /* Internal constructor. */
- static cJSON *cJSON_New_Item(const internal_hooks * const hooks)
- {
- cJSON* node = (cJSON*)hooks->allocate(sizeof(cJSON));
- if (node)
- {
- memset(node, '\0', sizeof(cJSON));
- }
- return node;
- }
- /* Delete a cJSON structure. */
- CJSON_PUBLIC(void) cJSON_Delete(cJSON *item)
- {
- cJSON *next = NULL;
- while (item != NULL)
- {
- next = item->next;
- if (!(item->type & cJSON_IsReference) && (item->child != NULL))
- {
- cJSON_Delete(item->child);
- }
- if (!(item->type & cJSON_IsReference) && (item->valuestring != NULL))
- {
- global_hooks.deallocate(item->valuestring);
- }
- if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
- {
- global_hooks.deallocate(item->string);
- }
- global_hooks.deallocate(item);
- item = next;
- }
- }
- /* get the decimal point character of the current locale */
- static unsigned char get_decimal_point(void)
- {
- #ifdef ENABLE_LOCALES
- struct lconv *lconv = localeconv();
- return (unsigned char) lconv->decimal_point[0];
- #else
- return '.';
- #endif
- }
- typedef struct
- {
- const unsigned char *content;
- size_t length;
- size_t offset;
- size_t depth; /* How deeply nested (in arrays/objects) is the input at the current offset. */
- internal_hooks hooks;
- } parse_buffer;
- /* check if the given size is left to read in a given parse buffer (starting with 1) */
- #define can_read(buffer, size) ((buffer != NULL) && (((buffer)->offset + size) <= (buffer)->length))
- /* check if the buffer can be accessed at the given index (starting with 0) */
- #define can_access_at_index(buffer, index) ((buffer != NULL) && (((buffer)->offset + index) < (buffer)->length))
- #define cannot_access_at_index(buffer, index) (!can_access_at_index(buffer, index))
- /* get a pointer to the buffer at the position */
- #define buffer_at_offset(buffer) ((buffer)->content + (buffer)->offset)
- /* Parse the input text to generate a number, and populate the result into item. */
- static cJSON_bool parse_number(cJSON * const item, parse_buffer * const input_buffer)
- {
- double number = 0;
- unsigned char *after_end = NULL;
- unsigned char number_c_string[64];
- unsigned char decimal_point = get_decimal_point();
- size_t i = 0;
- if ((input_buffer == NULL) || (input_buffer->content == NULL))
- {
- return false;
- }
- /* copy the number into a temporary buffer and replace '.' with the decimal point
- * of the current locale (for strtod)
- * This also takes care of '\0' not necessarily being available for marking the end of the input */
- for (i = 0; (i < (sizeof(number_c_string) - 1)) && can_access_at_index(input_buffer, i); i++)
- {
- switch (buffer_at_offset(input_buffer)[i])
- {
- case '0':
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- case '+':
- case '-':
- case 'e':
- case 'E':
- number_c_string[i] = buffer_at_offset(input_buffer)[i];
- break;
- case '.':
- number_c_string[i] = decimal_point;
- break;
- default:
- goto loop_end;
- }
- }
- loop_end:
- number_c_string[i] = '\0';
- number = strtod((const char*)number_c_string, (char**)&after_end);
- if (number_c_string == after_end)
- {
- return false; /* parse_error */
- }
- item->valuedouble = number;
- /* use saturation in case of overflow */
- if (number >= INT_MAX)
- {
- item->valueint = INT_MAX;
- }
- else if (number <= (double)INT_MIN)
- {
- item->valueint = INT_MIN;
- }
- else
- {
- item->valueint = (int)number;
- }
- item->type = cJSON_Number;
- input_buffer->offset += (size_t)(after_end - number_c_string);
- return true;
- }
- /* don't ask me, but the original cJSON_SetNumberValue returns an integer or double */
- CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number)
- {
- if (number >= INT_MAX)
- {
- object->valueint = INT_MAX;
- }
- else if (number <= (double)INT_MIN)
- {
- object->valueint = INT_MIN;
- }
- else
- {
- object->valueint = (int)number;
- }
- return object->valuedouble = number;
- }
- CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring)
- {
- char *copy = NULL;
- /* if object's type is not cJSON_String or is cJSON_IsReference, it should not set valuestring */
- if (!(object->type & cJSON_String) || (object->type & cJSON_IsReference))
- {
- return NULL;
- }
- if (strlen(valuestring) <= strlen(object->valuestring))
- {
- strcpy(object->valuestring, valuestring);
- return object->valuestring;
- }
- copy = (char*) cJSON_strdup((const unsigned char*)valuestring, &global_hooks);
- if (copy == NULL)
- {
- return NULL;
- }
- if (object->valuestring != NULL)
- {
- cJSON_free(object->valuestring);
- }
- object->valuestring = copy;
- return copy;
- }
- typedef struct
- {
- unsigned char *buffer;
- size_t length;
- size_t offset;
- size_t depth; /* current nesting depth (for formatted printing) */
- cJSON_bool noalloc;
- cJSON_bool format; /* is this print a formatted print */
- internal_hooks hooks;
- } printbuffer;
- /* realloc printbuffer if necessary to have at least "needed" bytes more */
- static unsigned char* ensure(printbuffer * const p, size_t needed)
- {
- unsigned char *newbuffer = NULL;
- size_t newsize = 0;
- if ((p == NULL) || (p->buffer == NULL))
- {
- return NULL;
- }
- if ((p->length > 0) && (p->offset >= p->length))
- {
- /* make sure that offset is valid */
- return NULL;
- }
- if (needed > INT_MAX)
- {
- /* sizes bigger than INT_MAX are currently not supported */
- return NULL;
- }
- needed += p->offset + 1;
- if (needed <= p->length)
- {
- return p->buffer + p->offset;
- }
- if (p->noalloc) {
- return NULL;
- }
- /* calculate new buffer size */
- if (needed > (INT_MAX / 2))
- {
- /* overflow of int, use INT_MAX if possible */
- if (needed <= INT_MAX)
- {
- newsize = INT_MAX;
- }
- else
- {
- return NULL;
- }
- }
- else
- {
- newsize = needed * 2;
- }
- if (p->hooks.reallocate != NULL)
- {
- /* reallocate with realloc if available */
- newbuffer = (unsigned char*)p->hooks.reallocate(p->buffer, newsize);
- if (newbuffer == NULL)
- {
- p->hooks.deallocate(p->buffer);
- p->length = 0;
- p->buffer = NULL;
- return NULL;
- }
- }
- else
- {
- /* otherwise reallocate manually */
- newbuffer = (unsigned char*)p->hooks.allocate(newsize);
- if (!newbuffer)
- {
- p->hooks.deallocate(p->buffer);
- p->length = 0;
- p->buffer = NULL;
- return NULL;
- }
- if (newbuffer)
- {
- memcpy(newbuffer, p->buffer, p->offset + 1);
- }
- p->hooks.deallocate(p->buffer);
- }
- p->length = newsize;
- p->buffer = newbuffer;
- return newbuffer + p->offset;
- }
- /* calculate the new length of the string in a printbuffer and update the offset */
- static void update_offset(printbuffer * const buffer)
- {
- const unsigned char *buffer_pointer = NULL;
- if ((buffer == NULL) || (buffer->buffer == NULL))
- {
- return;
- }
- buffer_pointer = buffer->buffer + buffer->offset;
- buffer->offset += strlen((const char*)buffer_pointer);
- }
- /* securely comparison of floating-point variables */
- static cJSON_bool compare_double(double a, double b)
- {
- double maxVal = fabs(a) > fabs(b) ? fabs(a) : fabs(b);
- return (fabs(a - b) <= maxVal * DBL_EPSILON);
- }
- /* Render the number nicely from the given item into a string. */
- static cJSON_bool print_number(const cJSON * const item, printbuffer * const output_buffer)
- {
- unsigned char *output_pointer = NULL;
- double d = item->valuedouble;
- int length = 0;
- size_t i = 0;
- unsigned char number_buffer[26] = {0}; /* temporary buffer to print the number into */
- unsigned char decimal_point = get_decimal_point();
- double test = 0.0;
- if (output_buffer == NULL)
- {
- return false;
- }
- /* This checks for NaN and Infinity */
- if (isnan(d) || isinf(d))
- {
- length = sprintf((char*)number_buffer, "null");
- }
- else
- {
- /* Try 15 decimal places of precision to avoid nonsignificant nonzero digits */
- length = sprintf((char*)number_buffer, "%1.15g", d);
- /* Check whether the original double can be recovered */
- if ((sscanf((char*)number_buffer, "%lg", &test) != 1) || !compare_double((double)test, d))
- {
- /* If not, print with 17 decimal places of precision */
- length = sprintf((char*)number_buffer, "%1.17g", d);
- }
- }
- /* sprintf failed or buffer overrun occurred */
- if ((length < 0) || (length > (int)(sizeof(number_buffer) - 1)))
- {
- return false;
- }
- /* reserve appropriate space in the output */
- output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
- if (output_pointer == NULL)
- {
- return false;
- }
- /* copy the printed number to the output and replace locale
- * dependent decimal point with '.' */
- for (i = 0; i < ((size_t)length); i++)
- {
- if (number_buffer[i] == decimal_point)
- {
- output_pointer[i] = '.';
- continue;
- }
- output_pointer[i] = number_buffer[i];
- }
- output_pointer[i] = '\0';
- output_buffer->offset += (size_t)length;
- return true;
- }
- /* parse 4 digit hexadecimal number */
- static unsigned parse_hex4(const unsigned char * const input)
- {
- unsigned int h = 0;
- size_t i = 0;
- for (i = 0; i < 4; i++)
- {
- /* parse digit */
- if ((input[i] >= '0') && (input[i] <= '9'))
- {
- h += (unsigned int) input[i] - '0';
- }
- else if ((input[i] >= 'A') && (input[i] <= 'F'))
- {
- h += (unsigned int) 10 + input[i] - 'A';
- }
- else if ((input[i] >= 'a') && (input[i] <= 'f'))
- {
- h += (unsigned int) 10 + input[i] - 'a';
- }
- else /* invalid */
- {
- return 0;
- }
- if (i < 3)
- {
- /* shift left to make place for the next nibble */
- h = h << 4;
- }
- }
- return h;
- }
- /* converts a UTF-16 literal to UTF-8
- * A literal can be one or two sequences of the form \uXXXX */
- static unsigned char utf16_literal_to_utf8(const unsigned char * const input_pointer, const unsigned char * const input_end, unsigned char **output_pointer)
- {
- long unsigned int codepoint = 0;
- unsigned int first_code = 0;
- const unsigned char *first_sequence = input_pointer;
- unsigned char utf8_length = 0;
- unsigned char utf8_position = 0;
- unsigned char sequence_length = 0;
- unsigned char first_byte_mark = 0;
- if ((input_end - first_sequence) < 6)
- {
- /* input ends unexpectedly */
- goto fail;
- }
- /* get the first utf16 sequence */
- first_code = parse_hex4(first_sequence + 2);
- /* check that the code is valid */
- if (((first_code >= 0xDC00) && (first_code <= 0xDFFF)))
- {
- goto fail;
- }
- /* UTF16 surrogate pair */
- if ((first_code >= 0xD800) && (first_code <= 0xDBFF))
- {
- const unsigned char *second_sequence = first_sequence + 6;
- unsigned int second_code = 0;
- sequence_length = 12; /* \uXXXX\uXXXX */
- if ((input_end - second_sequence) < 6)
- {
- /* input ends unexpectedly */
- goto fail;
- }
- if ((second_sequence[0] != '\\') || (second_sequence[1] != 'u'))
- {
- /* missing second half of the surrogate pair */
- goto fail;
- }
- /* get the second utf16 sequence */
- second_code = parse_hex4(second_sequence + 2);
- /* check that the code is valid */
- if ((second_code < 0xDC00) || (second_code > 0xDFFF))
- {
- /* invalid second half of the surrogate pair */
- goto fail;
- }
- /* calculate the unicode codepoint from the surrogate pair */
- codepoint = 0x10000 + (((first_code & 0x3FF) << 10) | (second_code & 0x3FF));
- }
- else
- {
- sequence_length = 6; /* \uXXXX */
- codepoint = first_code;
- }
- /* encode as UTF-8
- * takes at maximum 4 bytes to encode:
- * 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
- if (codepoint < 0x80)
- {
- /* normal ascii, encoding 0xxxxxxx */
- utf8_length = 1;
- }
- else if (codepoint < 0x800)
- {
- /* two bytes, encoding 110xxxxx 10xxxxxx */
- utf8_length = 2;
- first_byte_mark = 0xC0; /* 11000000 */
- }
- else if (codepoint < 0x10000)
- {
- /* three bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx */
- utf8_length = 3;
- first_byte_mark = 0xE0; /* 11100000 */
- }
- else if (codepoint <= 0x10FFFF)
- {
- /* four bytes, encoding 1110xxxx 10xxxxxx 10xxxxxx 10xxxxxx */
- utf8_length = 4;
- first_byte_mark = 0xF0; /* 11110000 */
- }
- else
- {
- /* invalid unicode codepoint */
- goto fail;
- }
- /* encode as utf8 */
- for (utf8_position = (unsigned char)(utf8_length - 1); utf8_position > 0; utf8_position--)
- {
- /* 10xxxxxx */
- (*output_pointer)[utf8_position] = (unsigned char)((codepoint | 0x80) & 0xBF);
- codepoint >>= 6;
- }
- /* encode first byte */
- if (utf8_length > 1)
- {
- (*output_pointer)[0] = (unsigned char)((codepoint | first_byte_mark) & 0xFF);
- }
- else
- {
- (*output_pointer)[0] = (unsigned char)(codepoint & 0x7F);
- }
- *output_pointer += utf8_length;
- return sequence_length;
- fail:
- return 0;
- }
- /* Parse the input text into an unescaped cinput, and populate item. */
- static cJSON_bool parse_string(cJSON * const item, parse_buffer * const input_buffer)
- {
- const unsigned char *input_pointer = buffer_at_offset(input_buffer) + 1;
- const unsigned char *input_end = buffer_at_offset(input_buffer) + 1;
- unsigned char *output_pointer = NULL;
- unsigned char *output = NULL;
- /* not a string */
- if (buffer_at_offset(input_buffer)[0] != '\"')
- {
- goto fail;
- }
- {
- /* calculate approximate size of the output (overestimate) */
- size_t allocation_length = 0;
- size_t skipped_bytes = 0;
- while (((size_t)(input_end - input_buffer->content) < input_buffer->length) && (*input_end != '\"'))
- {
- /* is escape sequence */
- if (input_end[0] == '\\')
- {
- if ((size_t)(input_end + 1 - input_buffer->content) >= input_buffer->length)
- {
- /* prevent buffer overflow when last input character is a backslash */
- goto fail;
- }
- skipped_bytes++;
- input_end++;
- }
- input_end++;
- }
- if (((size_t)(input_end - input_buffer->content) >= input_buffer->length) || (*input_end != '\"'))
- {
- goto fail; /* string ended unexpectedly */
- }
- /* This is at most how much we need for the output */
- allocation_length = (size_t) (input_end - buffer_at_offset(input_buffer)) - skipped_bytes;
- output = (unsigned char*)input_buffer->hooks.allocate(allocation_length + sizeof(""));
- if (output == NULL)
- {
- goto fail; /* allocation failure */
- }
- }
- output_pointer = output;
- /* loop through the string literal */
- while (input_pointer < input_end)
- {
- if (*input_pointer != '\\')
- {
- *output_pointer++ = *input_pointer++;
- }
- /* escape sequence */
- else
- {
- unsigned char sequence_length = 2;
- if ((input_end - input_pointer) < 1)
- {
- goto fail;
- }
- switch (input_pointer[1])
- {
- case 'b':
- *output_pointer++ = '\b';
- break;
- case 'f':
- *output_pointer++ = '\f';
- break;
- case 'n':
- *output_pointer++ = '\n';
- break;
- case 'r':
- *output_pointer++ = '\r';
- break;
- case 't':
- *output_pointer++ = '\t';
- break;
- case '\"':
- case '\\':
- case '/':
- *output_pointer++ = input_pointer[1];
- break;
- /* UTF-16 literal */
- case 'u':
- sequence_length = utf16_literal_to_utf8(input_pointer, input_end, &output_pointer);
- if (sequence_length == 0)
- {
- /* failed to convert UTF16-literal to UTF-8 */
- goto fail;
- }
- break;
- default:
- goto fail;
- }
- input_pointer += sequence_length;
- }
- }
- /* zero terminate the output */
- *output_pointer = '\0';
- item->type = cJSON_String;
- item->valuestring = (char*)output;
- input_buffer->offset = (size_t) (input_end - input_buffer->content);
- input_buffer->offset++;
- return true;
- fail:
- if (output != NULL)
- {
- input_buffer->hooks.deallocate(output);
- }
- if (input_pointer != NULL)
- {
- input_buffer->offset = (size_t)(input_pointer - input_buffer->content);
- }
- return false;
- }
- /* Render the cstring provided to an escaped version that can be printed. */
- static cJSON_bool print_string_ptr(const unsigned char * const input, printbuffer * const output_buffer)
- {
- const unsigned char *input_pointer = NULL;
- unsigned char *output = NULL;
- unsigned char *output_pointer = NULL;
- size_t output_length = 0;
- /* numbers of additional characters needed for escaping */
- size_t escape_characters = 0;
- if (output_buffer == NULL)
- {
- return false;
- }
- /* empty string */
- if (input == NULL)
- {
- output = ensure(output_buffer, sizeof("\"\""));
- if (output == NULL)
- {
- return false;
- }
- strcpy((char*)output, "\"\"");
- return true;
- }
- /* set "flag" to 1 if something needs to be escaped */
- for (input_pointer = input; *input_pointer; input_pointer++)
- {
- switch (*input_pointer)
- {
- case '\"':
- case '\\':
- case '\b':
- case '\f':
- case '\n':
- case '\r':
- case '\t':
- /* one character escape sequence */
- escape_characters++;
- break;
- default:
- if (*input_pointer < 32)
- {
- /* UTF-16 escape sequence uXXXX */
- escape_characters += 5;
- }
- break;
- }
- }
- output_length = (size_t)(input_pointer - input) + escape_characters;
- output = ensure(output_buffer, output_length + sizeof("\"\""));
- if (output == NULL)
- {
- return false;
- }
- /* no characters have to be escaped */
- if (escape_characters == 0)
- {
- output[0] = '\"';
- memcpy(output + 1, input, output_length);
- output[output_length + 1] = '\"';
- output[output_length + 2] = '\0';
- return true;
- }
- output[0] = '\"';
- output_pointer = output + 1;
- /* copy the string */
- for (input_pointer = input; *input_pointer != '\0'; (void)input_pointer++, output_pointer++)
- {
- if ((*input_pointer > 31) && (*input_pointer != '\"') && (*input_pointer != '\\'))
- {
- /* normal character, copy */
- *output_pointer = *input_pointer;
- }
- else
- {
- /* character needs to be escaped */
- *output_pointer++ = '\\';
- switch (*input_pointer)
- {
- case '\\':
- *output_pointer = '\\';
- break;
- case '\"':
- *output_pointer = '\"';
- break;
- case '\b':
- *output_pointer = 'b';
- break;
- case '\f':
- *output_pointer = 'f';
- break;
- case '\n':
- *output_pointer = 'n';
- break;
- case '\r':
- *output_pointer = 'r';
- break;
- case '\t':
- *output_pointer = 't';
- break;
- default:
- /* escape and print as unicode codepoint */
- sprintf((char*)output_pointer, "u%04x", *input_pointer);
- output_pointer += 4;
- break;
- }
- }
- }
- output[output_length + 1] = '\"';
- output[output_length + 2] = '\0';
- return true;
- }
- /* Invoke print_string_ptr (which is useful) on an item. */
- static cJSON_bool print_string(const cJSON * const item, printbuffer * const p)
- {
- return print_string_ptr((unsigned char*)item->valuestring, p);
- }
- /* Predeclare these prototypes. */
- static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer);
- static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer);
- static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer);
- static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer);
- static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer);
- static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer);
- /* Utility to jump whitespace and cr/lf */
- static parse_buffer *buffer_skip_whitespace(parse_buffer * const buffer)
- {
- if ((buffer == NULL) || (buffer->content == NULL))
- {
- return NULL;
- }
- if (cannot_access_at_index(buffer, 0))
- {
- return buffer;
- }
- while (can_access_at_index(buffer, 0) && (buffer_at_offset(buffer)[0] <= 32))
- {
- buffer->offset++;
- }
- if (buffer->offset == buffer->length)
- {
- buffer->offset--;
- }
- return buffer;
- }
- /* skip the UTF-8 BOM (byte order mark) if it is at the beginning of a buffer */
- static parse_buffer *skip_utf8_bom(parse_buffer * const buffer)
- {
- if ((buffer == NULL) || (buffer->content == NULL) || (buffer->offset != 0))
- {
- return NULL;
- }
- if (can_access_at_index(buffer, 4) && (strncmp((const char*)buffer_at_offset(buffer), "\xEF\xBB\xBF", 3) == 0))
- {
- buffer->offset += 3;
- }
- return buffer;
- }
- CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated)
- {
- size_t buffer_length;
- if (NULL == value)
- {
- return NULL;
- }
- /* Adding null character size due to require_null_terminated. */
- buffer_length = strlen(value) + sizeof("");
- return cJSON_ParseWithLengthOpts(value, buffer_length, return_parse_end, require_null_terminated);
- }
- /* Parse an object - create a new root, and populate. */
- CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated)
- {
- parse_buffer buffer = { 0, 0, 0, 0, { 0, 0, 0 } };
- cJSON *item = NULL;
- /* reset error position */
- global_error.json = NULL;
- global_error.position = 0;
- if (value == NULL || 0 == buffer_length)
- {
- goto fail;
- }
- buffer.content = (const unsigned char*)value;
- buffer.length = buffer_length;
- buffer.offset = 0;
- buffer.hooks = global_hooks;
- item = cJSON_New_Item(&global_hooks);
- if (item == NULL) /* memory fail */
- {
- goto fail;
- }
- if (!parse_value(item, buffer_skip_whitespace(skip_utf8_bom(&buffer))))
- {
- /* parse failure. ep is set. */
- goto fail;
- }
- /* if we require null-terminated JSON without appended garbage, skip and then check for a null terminator */
- if (require_null_terminated)
- {
- buffer_skip_whitespace(&buffer);
- if ((buffer.offset >= buffer.length) || buffer_at_offset(&buffer)[0] != '\0')
- {
- goto fail;
- }
- }
- if (return_parse_end)
- {
- *return_parse_end = (const char*)buffer_at_offset(&buffer);
- }
- return item;
- fail:
- if (item != NULL)
- {
- cJSON_Delete(item);
- }
- if (value != NULL)
- {
- error local_error;
- local_error.json = (const unsigned char*)value;
- local_error.position = 0;
- if (buffer.offset < buffer.length)
- {
- local_error.position = buffer.offset;
- }
- else if (buffer.length > 0)
- {
- local_error.position = buffer.length - 1;
- }
- if (return_parse_end != NULL)
- {
- *return_parse_end = (const char*)local_error.json + local_error.position;
- }
- global_error = local_error;
- }
- return NULL;
- }
- /* Default options for cJSON_Parse */
- CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value)
- {
- return cJSON_ParseWithOpts(value, 0, 0);
- }
- CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length)
- {
- return cJSON_ParseWithLengthOpts(value, buffer_length, 0, 0);
- }
- #define cjson_min(a, b) (((a) < (b)) ? (a) : (b))
- static unsigned char *print(const cJSON * const item, cJSON_bool format, const internal_hooks * const hooks)
- {
- static const size_t default_buffer_size = 256;
- printbuffer buffer[1];
- unsigned char *printed = NULL;
- memset(buffer, 0, sizeof(buffer));
- /* create buffer */
- buffer->buffer = (unsigned char*) hooks->allocate(default_buffer_size);
- buffer->length = default_buffer_size;
- buffer->format = format;
- buffer->hooks = *hooks;
- if (buffer->buffer == NULL)
- {
- goto fail;
- }
- /* print the value */
- if (!print_value(item, buffer))
- {
- goto fail;
- }
- update_offset(buffer);
- /* check if reallocate is available */
- if (hooks->reallocate != NULL)
- {
- printed = (unsigned char*) hooks->reallocate(buffer->buffer, buffer->offset + 1);
- if (printed == NULL) {
- goto fail;
- }
- buffer->buffer = NULL;
- }
- else /* otherwise copy the JSON over to a new buffer */
- {
- printed = (unsigned char*) hooks->allocate(buffer->offset + 1);
- if (printed == NULL)
- {
- goto fail;
- }
- memcpy(printed, buffer->buffer, cjson_min(buffer->length, buffer->offset + 1));
- printed[buffer->offset] = '\0'; /* just to be sure */
- /* free the buffer */
- hooks->deallocate(buffer->buffer);
- }
- return printed;
- fail:
- if (buffer->buffer != NULL)
- {
- hooks->deallocate(buffer->buffer);
- }
- if (printed != NULL)
- {
- hooks->deallocate(printed);
- }
- return NULL;
- }
- /* Render a cJSON item/entity/structure to text. */
- CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item)
- {
- return (char*)print(item, true, &global_hooks);
- }
- CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item)
- {
- return (char*)print(item, false, &global_hooks);
- }
- CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt)
- {
- printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
- if (prebuffer < 0)
- {
- return NULL;
- }
- p.buffer = (unsigned char*)global_hooks.allocate((size_t)prebuffer);
- if (!p.buffer)
- {
- return NULL;
- }
- p.length = (size_t)prebuffer;
- p.offset = 0;
- p.noalloc = false;
- p.format = fmt;
- p.hooks = global_hooks;
- if (!print_value(item, &p))
- {
- global_hooks.deallocate(p.buffer);
- return NULL;
- }
- return (char*)p.buffer;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format)
- {
- printbuffer p = { 0, 0, 0, 0, 0, 0, { 0, 0, 0 } };
- if ((length < 0) || (buffer == NULL))
- {
- return false;
- }
- p.buffer = (unsigned char*)buffer;
- p.length = (size_t)length;
- p.offset = 0;
- p.noalloc = true;
- p.format = format;
- p.hooks = global_hooks;
- return print_value(item, &p);
- }
- /* Parser core - when encountering text, process appropriately. */
- static cJSON_bool parse_value(cJSON * const item, parse_buffer * const input_buffer)
- {
- if ((input_buffer == NULL) || (input_buffer->content == NULL))
- {
- return false; /* no input */
- }
- /* parse the different types of values */
- /* null */
- if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "null", 4) == 0))
- {
- item->type = cJSON_NULL;
- input_buffer->offset += 4;
- return true;
- }
- /* false */
- if (can_read(input_buffer, 5) && (strncmp((const char*)buffer_at_offset(input_buffer), "false", 5) == 0))
- {
- item->type = cJSON_False;
- input_buffer->offset += 5;
- return true;
- }
- /* true */
- if (can_read(input_buffer, 4) && (strncmp((const char*)buffer_at_offset(input_buffer), "true", 4) == 0))
- {
- item->type = cJSON_True;
- item->valueint = 1;
- input_buffer->offset += 4;
- return true;
- }
- /* string */
- if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '\"'))
- {
- return parse_string(item, input_buffer);
- }
- /* number */
- 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'))))
- {
- return parse_number(item, input_buffer);
- }
- /* array */
- if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '['))
- {
- return parse_array(item, input_buffer);
- }
- /* object */
- if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '{'))
- {
- return parse_object(item, input_buffer);
- }
- return false;
- }
- /* Render a value to text. */
- static cJSON_bool print_value(const cJSON * const item, printbuffer * const output_buffer)
- {
- unsigned char *output = NULL;
- if ((item == NULL) || (output_buffer == NULL))
- {
- return false;
- }
- switch ((item->type) & 0xFF)
- {
- case cJSON_NULL:
- output = ensure(output_buffer, 5);
- if (output == NULL)
- {
- return false;
- }
- strcpy((char*)output, "null");
- return true;
- case cJSON_False:
- output = ensure(output_buffer, 6);
- if (output == NULL)
- {
- return false;
- }
- strcpy((char*)output, "false");
- return true;
- case cJSON_True:
- output = ensure(output_buffer, 5);
- if (output == NULL)
- {
- return false;
- }
- strcpy((char*)output, "true");
- return true;
- case cJSON_Number:
- return print_number(item, output_buffer);
- case cJSON_Raw:
- {
- size_t raw_length = 0;
- if (item->valuestring == NULL)
- {
- return false;
- }
- raw_length = strlen(item->valuestring) + sizeof("");
- output = ensure(output_buffer, raw_length);
- if (output == NULL)
- {
- return false;
- }
- memcpy(output, item->valuestring, raw_length);
- return true;
- }
- case cJSON_String:
- return print_string(item, output_buffer);
- case cJSON_Array:
- return print_array(item, output_buffer);
- case cJSON_Object:
- return print_object(item, output_buffer);
- default:
- return false;
- }
- }
- /* Build an array from input text. */
- static cJSON_bool parse_array(cJSON * const item, parse_buffer * const input_buffer)
- {
- cJSON *head = NULL; /* head of the linked list */
- cJSON *current_item = NULL;
- if (input_buffer->depth >= CJSON_NESTING_LIMIT)
- {
- return false; /* to deeply nested */
- }
- input_buffer->depth++;
- if (buffer_at_offset(input_buffer)[0] != '[')
- {
- /* not an array */
- goto fail;
- }
- input_buffer->offset++;
- buffer_skip_whitespace(input_buffer);
- if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ']'))
- {
- /* empty array */
- goto success;
- }
- /* check if we skipped to the end of the buffer */
- if (cannot_access_at_index(input_buffer, 0))
- {
- input_buffer->offset--;
- goto fail;
- }
- /* step back to character in front of the first element */
- input_buffer->offset--;
- /* loop through the comma separated array elements */
- do
- {
- /* allocate next item */
- cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
- if (new_item == NULL)
- {
- goto fail; /* allocation failure */
- }
- /* attach next item to list */
- if (head == NULL)
- {
- /* start the linked list */
- current_item = head = new_item;
- }
- else
- {
- /* add to the end and advance */
- current_item->next = new_item;
- new_item->prev = current_item;
- current_item = new_item;
- }
- /* parse next value */
- input_buffer->offset++;
- buffer_skip_whitespace(input_buffer);
- if (!parse_value(current_item, input_buffer))
- {
- goto fail; /* failed to parse value */
- }
- buffer_skip_whitespace(input_buffer);
- }
- while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
- if (cannot_access_at_index(input_buffer, 0) || buffer_at_offset(input_buffer)[0] != ']')
- {
- goto fail; /* expected end of array */
- }
- success:
- input_buffer->depth--;
- if (head != NULL) {
- head->prev = current_item;
- }
- item->type = cJSON_Array;
- item->child = head;
- input_buffer->offset++;
- return true;
- fail:
- if (head != NULL)
- {
- cJSON_Delete(head);
- }
- return false;
- }
- /* Render an array to text */
- static cJSON_bool print_array(const cJSON * const item, printbuffer * const output_buffer)
- {
- unsigned char *output_pointer = NULL;
- size_t length = 0;
- cJSON *current_element = item->child;
- if (output_buffer == NULL)
- {
- return false;
- }
- /* Compose the output array. */
- /* opening square bracket */
- output_pointer = ensure(output_buffer, 1);
- if (output_pointer == NULL)
- {
- return false;
- }
- *output_pointer = '[';
- output_buffer->offset++;
- output_buffer->depth++;
- while (current_element != NULL)
- {
- if (!print_value(current_element, output_buffer))
- {
- return false;
- }
- update_offset(output_buffer);
- if (current_element->next)
- {
- length = (size_t) (output_buffer->format ? 2 : 1);
- output_pointer = ensure(output_buffer, length + 1);
- if (output_pointer == NULL)
- {
- return false;
- }
- *output_pointer++ = ',';
- if(output_buffer->format)
- {
- *output_pointer++ = ' ';
- }
- *output_pointer = '\0';
- output_buffer->offset += length;
- }
- current_element = current_element->next;
- }
- output_pointer = ensure(output_buffer, 2);
- if (output_pointer == NULL)
- {
- return false;
- }
- *output_pointer++ = ']';
- *output_pointer = '\0';
- output_buffer->depth--;
- return true;
- }
- /* Build an object from the text. */
- static cJSON_bool parse_object(cJSON * const item, parse_buffer * const input_buffer)
- {
- cJSON *head = NULL; /* linked list head */
- cJSON *current_item = NULL;
- if (input_buffer->depth >= CJSON_NESTING_LIMIT)
- {
- return false; /* to deeply nested */
- }
- input_buffer->depth++;
- if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '{'))
- {
- goto fail; /* not an object */
- }
- input_buffer->offset++;
- buffer_skip_whitespace(input_buffer);
- if (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == '}'))
- {
- goto success; /* empty object */
- }
- /* check if we skipped to the end of the buffer */
- if (cannot_access_at_index(input_buffer, 0))
- {
- input_buffer->offset--;
- goto fail;
- }
- /* step back to character in front of the first element */
- input_buffer->offset--;
- /* loop through the comma separated array elements */
- do
- {
- /* allocate next item */
- cJSON *new_item = cJSON_New_Item(&(input_buffer->hooks));
- if (new_item == NULL)
- {
- goto fail; /* allocation failure */
- }
- /* attach next item to list */
- if (head == NULL)
- {
- /* start the linked list */
- current_item = head = new_item;
- }
- else
- {
- /* add to the end and advance */
- current_item->next = new_item;
- new_item->prev = current_item;
- current_item = new_item;
- }
- /* parse the name of the child */
- input_buffer->offset++;
- buffer_skip_whitespace(input_buffer);
- if (!parse_string(current_item, input_buffer))
- {
- goto fail; /* failed to parse name */
- }
- buffer_skip_whitespace(input_buffer);
- /* swap valuestring and string, because we parsed the name */
- current_item->string = current_item->valuestring;
- current_item->valuestring = NULL;
- if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != ':'))
- {
- goto fail; /* invalid object */
- }
- /* parse the value */
- input_buffer->offset++;
- buffer_skip_whitespace(input_buffer);
- if (!parse_value(current_item, input_buffer))
- {
- goto fail; /* failed to parse value */
- }
- buffer_skip_whitespace(input_buffer);
- }
- while (can_access_at_index(input_buffer, 0) && (buffer_at_offset(input_buffer)[0] == ','));
- if (cannot_access_at_index(input_buffer, 0) || (buffer_at_offset(input_buffer)[0] != '}'))
- {
- goto fail; /* expected end of object */
- }
- success:
- input_buffer->depth--;
- if (head != NULL) {
- head->prev = current_item;
- }
- item->type = cJSON_Object;
- item->child = head;
- input_buffer->offset++;
- return true;
- fail:
- if (head != NULL)
- {
- cJSON_Delete(head);
- }
- return false;
- }
- /* Render an object to text. */
- static cJSON_bool print_object(const cJSON * const item, printbuffer * const output_buffer)
- {
- unsigned char *output_pointer = NULL;
- size_t length = 0;
- cJSON *current_item = item->child;
- if (output_buffer == NULL)
- {
- return false;
- }
- /* Compose the output: */
- length = (size_t) (output_buffer->format ? 2 : 1); /* fmt: {\n */
- output_pointer = ensure(output_buffer, length + 1);
- if (output_pointer == NULL)
- {
- return false;
- }
- *output_pointer++ = '{';
- output_buffer->depth++;
- if (output_buffer->format)
- {
- *output_pointer++ = '\n';
- }
- output_buffer->offset += length;
- while (current_item)
- {
- if (output_buffer->format)
- {
- size_t i;
- output_pointer = ensure(output_buffer, output_buffer->depth);
- if (output_pointer == NULL)
- {
- return false;
- }
- for (i = 0; i < output_buffer->depth; i++)
- {
- *output_pointer++ = '\t';
- }
- output_buffer->offset += output_buffer->depth;
- }
- /* print key */
- if (!print_string_ptr((unsigned char*)current_item->string, output_buffer))
- {
- return false;
- }
- update_offset(output_buffer);
- length = (size_t) (output_buffer->format ? 2 : 1);
- output_pointer = ensure(output_buffer, length);
- if (output_pointer == NULL)
- {
- return false;
- }
- *output_pointer++ = ':';
- if (output_buffer->format)
- {
- *output_pointer++ = '\t';
- }
- output_buffer->offset += length;
- /* print value */
- if (!print_value(current_item, output_buffer))
- {
- return false;
- }
- update_offset(output_buffer);
- /* print comma if not last */
- length = ((size_t)(output_buffer->format ? 1 : 0) + (size_t)(current_item->next ? 1 : 0));
- output_pointer = ensure(output_buffer, length + 1);
- if (output_pointer == NULL)
- {
- return false;
- }
- if (current_item->next)
- {
- *output_pointer++ = ',';
- }
- if (output_buffer->format)
- {
- *output_pointer++ = '\n';
- }
- *output_pointer = '\0';
- output_buffer->offset += length;
- current_item = current_item->next;
- }
- output_pointer = ensure(output_buffer, output_buffer->format ? (output_buffer->depth + 1) : 2);
- if (output_pointer == NULL)
- {
- return false;
- }
- if (output_buffer->format)
- {
- size_t i;
- for (i = 0; i < (output_buffer->depth - 1); i++)
- {
- *output_pointer++ = '\t';
- }
- }
- *output_pointer++ = '}';
- *output_pointer = '\0';
- output_buffer->depth--;
- return true;
- }
- /* Get Array size/item / object item. */
- CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
- {
- cJSON *child = NULL;
- size_t size = 0;
- if (array == NULL)
- {
- return 0;
- }
- child = array->child;
- while(child != NULL)
- {
- size++;
- child = child->next;
- }
- /* FIXME: Can overflow here. Cannot be fixed without breaking the API */
- return (int)size;
- }
- static cJSON* get_array_item(const cJSON *array, size_t index)
- {
- cJSON *current_child = NULL;
- if (array == NULL)
- {
- return NULL;
- }
- current_child = array->child;
- while ((current_child != NULL) && (index > 0))
- {
- index--;
- current_child = current_child->next;
- }
- return current_child;
- }
- CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index)
- {
- if (index < 0)
- {
- return NULL;
- }
- return get_array_item(array, (size_t)index);
- }
- static cJSON *get_object_item(const cJSON * const object, const char * const name, const cJSON_bool case_sensitive)
- {
- cJSON *current_element = NULL;
- if ((object == NULL) || (name == NULL))
- {
- return NULL;
- }
- current_element = object->child;
- if (case_sensitive)
- {
- while ((current_element != NULL) && (current_element->string != NULL) && (strcmp(name, current_element->string) != 0))
- {
- current_element = current_element->next;
- }
- }
- else
- {
- while ((current_element != NULL) && (case_insensitive_strcmp((const unsigned char*)name, (const unsigned char*)(current_element->string)) != 0))
- {
- current_element = current_element->next;
- }
- }
- if ((current_element == NULL) || (current_element->string == NULL)) {
- return NULL;
- }
- return current_element;
- }
- CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string)
- {
- return get_object_item(object, string, false);
- }
- CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string)
- {
- return get_object_item(object, string, true);
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string)
- {
- return cJSON_GetObjectItem(object, string) ? 1 : 0;
- }
- /* Utility for array list handling. */
- static void suffix_object(cJSON *prev, cJSON *item)
- {
- prev->next = item;
- item->prev = prev;
- }
- /* Utility for handling references. */
- static cJSON *create_reference(const cJSON *item, const internal_hooks * const hooks)
- {
- cJSON *reference = NULL;
- if (item == NULL)
- {
- return NULL;
- }
- reference = cJSON_New_Item(hooks);
- if (reference == NULL)
- {
- return NULL;
- }
- memcpy(reference, item, sizeof(cJSON));
- reference->string = NULL;
- reference->type |= cJSON_IsReference;
- reference->next = reference->prev = NULL;
- return reference;
- }
- static cJSON_bool add_item_to_array(cJSON *array, cJSON *item)
- {
- cJSON *child = NULL;
- if ((item == NULL) || (array == NULL) || (array == item))
- {
- return false;
- }
- child = array->child;
- /*
- * To find the last item in array quickly, we use prev in array
- */
- if (child == NULL)
- {
- /* list is empty, start new one */
- array->child = item;
- item->prev = item;
- item->next = NULL;
- }
- else
- {
- /* append to the end */
- if (child->prev)
- {
- suffix_object(child->prev, item);
- array->child->prev = item;
- }
- else
- {
- while (child->next)
- {
- child = child->next;
- }
- suffix_object(child, item);
- array->child->prev = item;
- }
- }
- return true;
- }
- /* Add item to array/object. */
- CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item)
- {
- return add_item_to_array(array, item);
- }
- #if defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
- #pragma GCC diagnostic push
- #endif
- #ifdef __GNUC__
- #pragma GCC diagnostic ignored "-Wcast-qual"
- #endif
- /* helper function to cast away const */
- static void* cast_away_const(const void* string)
- {
- return (void*)string;
- }
- #if defined(__clang__) || (defined(__GNUC__) && ((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ > 5))))
- #pragma GCC diagnostic pop
- #endif
- 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)
- {
- char *new_key = NULL;
- int new_type = cJSON_Invalid;
- if ((object == NULL) || (string == NULL) || (item == NULL) || (object == item))
- {
- return false;
- }
- if (constant_key)
- {
- new_key = (char*)cast_away_const(string);
- new_type = item->type | cJSON_StringIsConst;
- }
- else
- {
- new_key = (char*)cJSON_strdup((const unsigned char*)string, hooks);
- if (new_key == NULL)
- {
- return false;
- }
- new_type = item->type & ~cJSON_StringIsConst;
- }
- if (!(item->type & cJSON_StringIsConst) && (item->string != NULL))
- {
- hooks->deallocate(item->string);
- }
- item->string = new_key;
- item->type = new_type;
- return add_item_to_array(object, item);
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
- {
- return add_item_to_object(object, string, item, &global_hooks, false);
- }
- /* Add an item to an object with constant string as key */
- CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
- {
- return add_item_to_object(object, string, item, &global_hooks, true);
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
- {
- if (array == NULL)
- {
- return false;
- }
- return add_item_to_array(array, create_reference(item, &global_hooks));
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
- {
- if ((object == NULL) || (string == NULL))
- {
- return false;
- }
- return add_item_to_object(object, string, create_reference(item, &global_hooks), &global_hooks, false);
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name)
- {
- cJSON *null = cJSON_CreateNull();
- if (add_item_to_object(object, name, null, &global_hooks, false))
- {
- return null;
- }
- cJSON_Delete(null);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name)
- {
- cJSON *true_item = cJSON_CreateTrue();
- if (add_item_to_object(object, name, true_item, &global_hooks, false))
- {
- return true_item;
- }
- cJSON_Delete(true_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name)
- {
- cJSON *false_item = cJSON_CreateFalse();
- if (add_item_to_object(object, name, false_item, &global_hooks, false))
- {
- return false_item;
- }
- cJSON_Delete(false_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean)
- {
- cJSON *bool_item = cJSON_CreateBool(boolean);
- if (add_item_to_object(object, name, bool_item, &global_hooks, false))
- {
- return bool_item;
- }
- cJSON_Delete(bool_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number)
- {
- cJSON *number_item = cJSON_CreateNumber(number);
- if (add_item_to_object(object, name, number_item, &global_hooks, false))
- {
- return number_item;
- }
- cJSON_Delete(number_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string)
- {
- cJSON *string_item = cJSON_CreateString(string);
- if (add_item_to_object(object, name, string_item, &global_hooks, false))
- {
- return string_item;
- }
- cJSON_Delete(string_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw)
- {
- cJSON *raw_item = cJSON_CreateRaw(raw);
- if (add_item_to_object(object, name, raw_item, &global_hooks, false))
- {
- return raw_item;
- }
- cJSON_Delete(raw_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name)
- {
- cJSON *object_item = cJSON_CreateObject();
- if (add_item_to_object(object, name, object_item, &global_hooks, false))
- {
- return object_item;
- }
- cJSON_Delete(object_item);
- return NULL;
- }
- CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name)
- {
- cJSON *array = cJSON_CreateArray();
- if (add_item_to_object(object, name, array, &global_hooks, false))
- {
- return array;
- }
- cJSON_Delete(array);
- return NULL;
- }
- CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item)
- {
- if ((parent == NULL) || (item == NULL))
- {
- return NULL;
- }
- if (item != parent->child)
- {
- /* not the first element */
- item->prev->next = item->next;
- }
- if (item->next != NULL)
- {
- /* not the last element */
- item->next->prev = item->prev;
- }
- if (item == parent->child)
- {
- /* first element */
- parent->child = item->next;
- }
- else if (item->next == NULL)
- {
- /* last element */
- parent->child->prev = item->prev;
- }
- /* make sure the detached item doesn't point anywhere anymore */
- item->prev = NULL;
- item->next = NULL;
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which)
- {
- if (which < 0)
- {
- return NULL;
- }
- return cJSON_DetachItemViaPointer(array, get_array_item(array, (size_t)which));
- }
- CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which)
- {
- cJSON_Delete(cJSON_DetachItemFromArray(array, which));
- }
- CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string)
- {
- cJSON *to_detach = cJSON_GetObjectItem(object, string);
- return cJSON_DetachItemViaPointer(object, to_detach);
- }
- CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string)
- {
- cJSON *to_detach = cJSON_GetObjectItemCaseSensitive(object, string);
- return cJSON_DetachItemViaPointer(object, to_detach);
- }
- CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string)
- {
- cJSON_Delete(cJSON_DetachItemFromObject(object, string));
- }
- CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string)
- {
- cJSON_Delete(cJSON_DetachItemFromObjectCaseSensitive(object, string));
- }
- /* Replace array/object items with new ones. */
- CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
- {
- cJSON *after_inserted = NULL;
- if (which < 0)
- {
- return false;
- }
- after_inserted = get_array_item(array, (size_t)which);
- if (after_inserted == NULL)
- {
- return add_item_to_array(array, newitem);
- }
- newitem->next = after_inserted;
- newitem->prev = after_inserted->prev;
- after_inserted->prev = newitem;
- if (after_inserted == array->child)
- {
- array->child = newitem;
- }
- else
- {
- newitem->prev->next = newitem;
- }
- return true;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement)
- {
- if ((parent == NULL) || (replacement == NULL) || (item == NULL))
- {
- return false;
- }
- if (replacement == item)
- {
- return true;
- }
- replacement->next = item->next;
- replacement->prev = item->prev;
- if (replacement->next != NULL)
- {
- replacement->next->prev = replacement;
- }
- if (parent->child == item)
- {
- if (parent->child->prev == parent->child)
- {
- replacement->prev = replacement;
- }
- parent->child = replacement;
- }
- else
- { /*
- * To find the last item in array quickly, we use prev in array.
- * We can't modify the last item's next pointer where this item was the parent's child
- */
- if (replacement->prev != NULL)
- {
- replacement->prev->next = replacement;
- }
- if (replacement->next == NULL)
- {
- parent->child->prev = replacement;
- }
- }
- item->next = NULL;
- item->prev = NULL;
- cJSON_Delete(item);
- return true;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
- {
- if (which < 0)
- {
- return false;
- }
- return cJSON_ReplaceItemViaPointer(array, get_array_item(array, (size_t)which), newitem);
- }
- static cJSON_bool replace_item_in_object(cJSON *object, const char *string, cJSON *replacement, cJSON_bool case_sensitive)
- {
- if ((replacement == NULL) || (string == NULL))
- {
- return false;
- }
- /* replace the name in the replacement */
- if (!(replacement->type & cJSON_StringIsConst) && (replacement->string != NULL))
- {
- cJSON_free(replacement->string);
- }
- replacement->string = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
- replacement->type &= ~cJSON_StringIsConst;
- return cJSON_ReplaceItemViaPointer(object, get_object_item(object, string, case_sensitive), replacement);
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
- {
- return replace_item_in_object(object, string, newitem, false);
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object, const char *string, cJSON *newitem)
- {
- return replace_item_in_object(object, string, newitem, true);
- }
- /* Create basic types: */
- CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_NULL;
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_True;
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_False;
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = boolean ? cJSON_True : cJSON_False;
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_Number;
- item->valuedouble = num;
- /* use saturation in case of overflow */
- if (num >= INT_MAX)
- {
- item->valueint = INT_MAX;
- }
- else if (num <= (double)INT_MIN)
- {
- item->valueint = INT_MIN;
- }
- else
- {
- item->valueint = (int)num;
- }
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_String;
- item->valuestring = (char*)cJSON_strdup((const unsigned char*)string, &global_hooks);
- if(!item->valuestring)
- {
- cJSON_Delete(item);
- return NULL;
- }
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if (item != NULL)
- {
- item->type = cJSON_String | cJSON_IsReference;
- item->valuestring = (char*)cast_away_const(string);
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if (item != NULL) {
- item->type = cJSON_Object | cJSON_IsReference;
- item->child = (cJSON*)cast_away_const(child);
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child) {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if (item != NULL) {
- item->type = cJSON_Array | cJSON_IsReference;
- item->child = (cJSON*)cast_away_const(child);
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type = cJSON_Raw;
- item->valuestring = (char*)cJSON_strdup((const unsigned char*)raw, &global_hooks);
- if(!item->valuestring)
- {
- cJSON_Delete(item);
- return NULL;
- }
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if(item)
- {
- item->type=cJSON_Array;
- }
- return item;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void)
- {
- cJSON *item = cJSON_New_Item(&global_hooks);
- if (item)
- {
- item->type = cJSON_Object;
- }
- return item;
- }
- /* Create Arrays: */
- CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count)
- {
- size_t i = 0;
- cJSON *n = NULL;
- cJSON *p = NULL;
- cJSON *a = NULL;
- if ((count < 0) || (numbers == NULL))
- {
- return NULL;
- }
- a = cJSON_CreateArray();
- for(i = 0; a && (i < (size_t)count); i++)
- {
- n = cJSON_CreateNumber(numbers[i]);
- if (!n)
- {
- cJSON_Delete(a);
- return NULL;
- }
- if(!i)
- {
- a->child = n;
- }
- else
- {
- suffix_object(p, n);
- }
- p = n;
- }
- return a;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count)
- {
- size_t i = 0;
- cJSON *n = NULL;
- cJSON *p = NULL;
- cJSON *a = NULL;
- if ((count < 0) || (numbers == NULL))
- {
- return NULL;
- }
- a = cJSON_CreateArray();
- for(i = 0; a && (i < (size_t)count); i++)
- {
- n = cJSON_CreateNumber((double)numbers[i]);
- if(!n)
- {
- cJSON_Delete(a);
- return NULL;
- }
- if(!i)
- {
- a->child = n;
- }
- else
- {
- suffix_object(p, n);
- }
- p = n;
- }
- return a;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count)
- {
- size_t i = 0;
- cJSON *n = NULL;
- cJSON *p = NULL;
- cJSON *a = NULL;
- if ((count < 0) || (numbers == NULL))
- {
- return NULL;
- }
- a = cJSON_CreateArray();
- for(i = 0;a && (i < (size_t)count); i++)
- {
- n = cJSON_CreateNumber(numbers[i]);
- if(!n)
- {
- cJSON_Delete(a);
- return NULL;
- }
- if(!i)
- {
- a->child = n;
- }
- else
- {
- suffix_object(p, n);
- }
- p = n;
- }
- return a;
- }
- CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count)
- {
- size_t i = 0;
- cJSON *n = NULL;
- cJSON *p = NULL;
- cJSON *a = NULL;
- if ((count < 0) || (strings == NULL))
- {
- return NULL;
- }
- a = cJSON_CreateArray();
- for (i = 0; a && (i < (size_t)count); i++)
- {
- n = cJSON_CreateString(strings[i]);
- if(!n)
- {
- cJSON_Delete(a);
- return NULL;
- }
- if(!i)
- {
- a->child = n;
- }
- else
- {
- suffix_object(p,n);
- }
- p = n;
- }
- return a;
- }
- /* Duplication */
- CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse)
- {
- cJSON *newitem = NULL;
- cJSON *child = NULL;
- cJSON *next = NULL;
- cJSON *newchild = NULL;
- /* Bail on bad ptr */
- if (!item)
- {
- goto fail;
- }
- /* Create new item */
- newitem = cJSON_New_Item(&global_hooks);
- if (!newitem)
- {
- goto fail;
- }
- /* Copy over all vars */
- newitem->type = item->type & (~cJSON_IsReference);
- newitem->valueint = item->valueint;
- newitem->valuedouble = item->valuedouble;
- if (item->valuestring)
- {
- newitem->valuestring = (char*)cJSON_strdup((unsigned char*)item->valuestring, &global_hooks);
- if (!newitem->valuestring)
- {
- goto fail;
- }
- }
- if (item->string)
- {
- newitem->string = (item->type&cJSON_StringIsConst) ? item->string : (char*)cJSON_strdup((unsigned char*)item->string, &global_hooks);
- if (!newitem->string)
- {
- goto fail;
- }
- }
- /* If non-recursive, then we're done! */
- if (!recurse)
- {
- return newitem;
- }
- /* Walk the ->next chain for the child. */
- child = item->child;
- while (child != NULL)
- {
- newchild = cJSON_Duplicate(child, true); /* Duplicate (with recurse) each item in the ->next chain */
- if (!newchild)
- {
- goto fail;
- }
- if (next != NULL)
- {
- /* If newitem->child already set, then crosswire ->prev and ->next and move on */
- next->next = newchild;
- newchild->prev = next;
- next = newchild;
- }
- else
- {
- /* Set newitem->child and move to it */
- newitem->child = newchild;
- next = newchild;
- }
- child = child->next;
- }
- return newitem;
- fail:
- if (newitem != NULL)
- {
- cJSON_Delete(newitem);
- }
- return NULL;
- }
- static void skip_oneline_comment(char **input)
- {
- *input += static_strlen("//");
- for (; (*input)[0] != '\0'; ++(*input))
- {
- if ((*input)[0] == '\n') {
- *input += static_strlen("\n");
- return;
- }
- }
- }
- static void skip_multiline_comment(char **input)
- {
- *input += static_strlen("/*");
- for (; (*input)[0] != '\0'; ++(*input))
- {
- if (((*input)[0] == '*') && ((*input)[1] == '/'))
- {
- *input += static_strlen("*/");
- return;
- }
- }
- }
- static void minify_string(char **input, char **output) {
- (*output)[0] = (*input)[0];
- *input += static_strlen("\"");
- *output += static_strlen("\"");
- for (; (*input)[0] != '\0'; (void)++(*input), ++(*output)) {
- (*output)[0] = (*input)[0];
- if ((*input)[0] == '\"') {
- (*output)[0] = '\"';
- *input += static_strlen("\"");
- *output += static_strlen("\"");
- return;
- } else if (((*input)[0] == '\\') && ((*input)[1] == '\"')) {
- (*output)[1] = (*input)[1];
- *input += static_strlen("\"");
- *output += static_strlen("\"");
- }
- }
- }
- CJSON_PUBLIC(void) cJSON_Minify(char *json)
- {
- char *into = json;
- if (json == NULL)
- {
- return;
- }
- while (json[0] != '\0')
- {
- switch (json[0])
- {
- case ' ':
- case '\t':
- case '\r':
- case '\n':
- json++;
- break;
- case '/':
- if (json[1] == '/')
- {
- skip_oneline_comment(&json);
- }
- else if (json[1] == '*')
- {
- skip_multiline_comment(&json);
- } else {
- json++;
- }
- break;
- case '\"':
- minify_string(&json, (char**)&into);
- break;
- default:
- into[0] = json[0];
- json++;
- into++;
- }
- }
- /* and null-terminate. */
- *into = '\0';
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_Invalid;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_False;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xff) == cJSON_True;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & (cJSON_True | cJSON_False)) != 0;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_NULL;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_Number;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_String;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_Array;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_Object;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item)
- {
- if (item == NULL)
- {
- return false;
- }
- return (item->type & 0xFF) == cJSON_Raw;
- }
- CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive)
- {
- if ((a == NULL) || (b == NULL) || ((a->type & 0xFF) != (b->type & 0xFF)) || cJSON_IsInvalid(a))
- {
- return false;
- }
- /* check if type is valid */
- switch (a->type & 0xFF)
- {
- case cJSON_False:
- case cJSON_True:
- case cJSON_NULL:
- case cJSON_Number:
- case cJSON_String:
- case cJSON_Raw:
- case cJSON_Array:
- case cJSON_Object:
- break;
- default:
- return false;
- }
- /* identical objects are equal */
- if (a == b)
- {
- return true;
- }
- switch (a->type & 0xFF)
- {
- /* in these cases and equal type is enough */
- case cJSON_False:
- case cJSON_True:
- case cJSON_NULL:
- return true;
- case cJSON_Number:
- if (compare_double(a->valuedouble, b->valuedouble))
- {
- return true;
- }
- return false;
- case cJSON_String:
- case cJSON_Raw:
- if ((a->valuestring == NULL) || (b->valuestring == NULL))
- {
- return false;
- }
- if (strcmp(a->valuestring, b->valuestring) == 0)
- {
- return true;
- }
- return false;
- case cJSON_Array:
- {
- cJSON *a_element = a->child;
- cJSON *b_element = b->child;
- for (; (a_element != NULL) && (b_element != NULL);)
- {
- if (!cJSON_Compare(a_element, b_element, case_sensitive))
- {
- return false;
- }
- a_element = a_element->next;
- b_element = b_element->next;
- }
- /* one of the arrays is longer than the other */
- if (a_element != b_element) {
- return false;
- }
- return true;
- }
- case cJSON_Object:
- {
- cJSON *a_element = NULL;
- cJSON *b_element = NULL;
- cJSON_ArrayForEach(a_element, a)
- {
- /* TODO This has O(n^2) runtime, which is horrible! */
- b_element = get_object_item(b, a_element->string, case_sensitive);
- if (b_element == NULL)
- {
- return false;
- }
- if (!cJSON_Compare(a_element, b_element, case_sensitive))
- {
- return false;
- }
- }
- /* doing this twice, once on a and b to prevent true comparison if a subset of b
- * TODO: Do this the proper way, this is just a fix for now */
- cJSON_ArrayForEach(b_element, b)
- {
- a_element = get_object_item(a, b_element->string, case_sensitive);
- if (a_element == NULL)
- {
- return false;
- }
- if (!cJSON_Compare(b_element, a_element, case_sensitive))
- {
- return false;
- }
- }
- return true;
- }
- default:
- return false;
- }
- }
- CJSON_PUBLIC(void *) cJSON_malloc(size_t size)
- {
- return global_hooks.allocate(size);
- }
- CJSON_PUBLIC(void) cJSON_free(void *object)
- {
- global_hooks.deallocate(object);
- }
|