Gerard COURIVAUD / JSON

json lib

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jsmn.h@8:43e1e35bb7ec, 2020-08-31 (annotated)

Committer:
38domo
Date:
Mon Aug 31 17:50:53 2020 +0000
Revision:
8:43e1e35bb7ec
Parent:
5:dd98cf00ed9b 
jpa json

Who changed what in which revision?

UserRevisionLine numberNew contents of line
faheem_chaudhary 5:dd98cf00ed9b 1 /* Author: Faheem Inayat
faheem_chaudhary 5:dd98cf00ed9b 2 * Created by "Night Crue" Team @ TechShop San Jose, CA
faheem_chaudhary 5:dd98cf00ed9b 3 *
faheem_chaudhary 5:dd98cf00ed9b 4 * --- DISCLAIMER ---
faheem_chaudhary 5:dd98cf00ed9b 5 * This code is a modified version of original JSMN lirary, written by
faheem_chaudhary 5:dd98cf00ed9b 6 * *** Serge A. Zaitsev ***
faheem_chaudhary 5:dd98cf00ed9b 7 * and hosted at https://github.com/zserge/jsmn
faheem_chaudhary 5:dd98cf00ed9b 8 * Any modification to the original source is not guaranteed to be included
faheem_chaudhary 5:dd98cf00ed9b 9 * in this version. As of writing of this file, the original source is
faheem_chaudhary 5:dd98cf00ed9b 10 * licensed under MIT License
faheem_chaudhary 5:dd98cf00ed9b 11 * (http://www.opensource.org/licenses/mit-license.php).
faheem_chaudhary 5:dd98cf00ed9b 12 */
faheem_chaudhary 5:dd98cf00ed9b 13
mercurywaters 3:fab591fca1e7 14 #ifndef __JSMN_H_
mercurywaters 3:fab591fca1e7 15 #define __JSMN_H_
mercurywaters 3:fab591fca1e7 16
mercurywaters 3:fab591fca1e7 17 #include <stddef.h>
mercurywaters 3:fab591fca1e7 18
mercurywaters 3:fab591fca1e7 19 #ifdef __cplusplus
mercurywaters 3:fab591fca1e7 20 extern "C"
mercurywaters 3:fab591fca1e7 21 {
mercurywaters 3:fab591fca1e7 22 #endif
faheem_chaudhary 5:dd98cf00ed9b 23 /*
faheem_chaudhary 5:dd98cf00ed9b 24 Modified version of original jsmn lib ... added a type "JSMN_KEY" and enabled
faheem_chaudhary 5:dd98cf00ed9b 25 parent-pointers and strict JSON check.
faheem_chaudhary 5:dd98cf00ed9b 26 */
mercurywaters 3:fab591fca1e7 27 /**
mercurywaters 3:fab591fca1e7 28 * JSON type identifier. Basic types are:
mercurywaters 3:fab591fca1e7 29 * o Object
mercurywaters 3:fab591fca1e7 30 * o Array
mercurywaters 3:fab591fca1e7 31 * o String
mercurywaters 3:fab591fca1e7 32 * o Other primitive: number, boolean (true/false) or null
mercurywaters 3:fab591fca1e7 33 */
mercurywaters 3:fab591fca1e7 34 typedef enum
mercurywaters 3:fab591fca1e7 35 {
mercurywaters 3:fab591fca1e7 36 JSMN_UNDEFINED = 0,
mercurywaters 3:fab591fca1e7 37 JSMN_OBJECT = 1,
mercurywaters 3:fab591fca1e7 38 JSMN_ARRAY = 2,
mercurywaters 3:fab591fca1e7 39 JSMN_STRING = 3,
mercurywaters 3:fab591fca1e7 40 JSMN_PRIMITIVE = 4,
mercurywaters 3:fab591fca1e7 41 JSMN_KEY = 5
mercurywaters 3:fab591fca1e7 42 } jsmntype_t;
mercurywaters 3:fab591fca1e7 43
mercurywaters 3:fab591fca1e7 44 enum jsmnerr
mercurywaters 3:fab591fca1e7 45 {
mercurywaters 3:fab591fca1e7 46 /* Not enough tokens were provided */
mercurywaters 3:fab591fca1e7 47 JSMN_ERROR_NOMEM = -1,
mercurywaters 3:fab591fca1e7 48 /* Invalid character inside JSON string */
mercurywaters 3:fab591fca1e7 49 JSMN_ERROR_INVAL = -2,
mercurywaters 3:fab591fca1e7 50 /* The string is not a full JSON packet, more bytes expected */
mercurywaters 3:fab591fca1e7 51 JSMN_ERROR_PART = -3
mercurywaters 3:fab591fca1e7 52 };
mercurywaters 3:fab591fca1e7 53
mercurywaters 3:fab591fca1e7 54 /**
mercurywaters 3:fab591fca1e7 55 * JSON token description.
mercurywaters 3:fab591fca1e7 56 * @param type type (object, array, string etc.)
mercurywaters 3:fab591fca1e7 57 * @param start start position in JSON data string
mercurywaters 3:fab591fca1e7 58 * @param end end position in JSON data string
mercurywaters 3:fab591fca1e7 59 */
mercurywaters 3:fab591fca1e7 60 typedef struct
mercurywaters 3:fab591fca1e7 61 {
mercurywaters 3:fab591fca1e7 62 jsmntype_t type;
mercurywaters 3:fab591fca1e7 63 int start;
mercurywaters 3:fab591fca1e7 64 int end;
mercurywaters 3:fab591fca1e7 65 int parent;
mercurywaters 3:fab591fca1e7 66 int childCount;
mercurywaters 3:fab591fca1e7 67 } jsmntok_t;
mercurywaters 3:fab591fca1e7 68
mercurywaters 3:fab591fca1e7 69 /**
mercurywaters 3:fab591fca1e7 70 * JSON parser. Contains an array of token blocks available. Also stores
mercurywaters 3:fab591fca1e7 71 * the string being parsed now and current position in that string
mercurywaters 3:fab591fca1e7 72 */
mercurywaters 3:fab591fca1e7 73 typedef struct
mercurywaters 3:fab591fca1e7 74 {
mercurywaters 3:fab591fca1e7 75 unsigned int pos; /* offset in the JSON string */
mercurywaters 3:fab591fca1e7 76 unsigned int toknext; /* next token to allocate */
mercurywaters 3:fab591fca1e7 77 int toksuper; /* superior token node, e.g parent object or array */
mercurywaters 3:fab591fca1e7 78 } jsmn_parser;
mercurywaters 3:fab591fca1e7 79
mercurywaters 3:fab591fca1e7 80 /**
mercurywaters 3:fab591fca1e7 81 * Create JSON parser over an array of tokens
mercurywaters 3:fab591fca1e7 82 */
mercurywaters 3:fab591fca1e7 83 void jsmn_init ( jsmn_parser *parser );
mercurywaters 3:fab591fca1e7 84
mercurywaters 3:fab591fca1e7 85 /**
mercurywaters 3:fab591fca1e7 86 * Run JSON parser. It parses a JSON data string into and array of tokens, each describing
mercurywaters 3:fab591fca1e7 87 * a single JSON object.
mercurywaters 3:fab591fca1e7 88 */
mercurywaters 3:fab591fca1e7 89 int jsmn_parse ( jsmn_parser *parser, const char *js, size_t len, jsmntok_t *tokens, unsigned int num_tokens );
mercurywaters 3:fab591fca1e7 90
mercurywaters 3:fab591fca1e7 91 #ifdef __cplusplus
mercurywaters 3:fab591fca1e7 92 }
mercurywaters 3:fab591fca1e7 93 #endif
mercurywaters 3:fab591fca1e7 94
mercurywaters 3:fab591fca1e7 95 #endif /* __JSMN_H_ */
mercurywaters 3:fab591fca1e7 96
38domo 8:43e1e35bb7ec 97