1/*- 2 * Copyright (c) 2010 Serge A. Zaitsev 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#ifndef _BMK_CORE_JSMN_H_ 24#define _BMK_CORE_JSMN_H_ 25 26#ifdef __cplusplus 27extern "C" { 28#endif 29 30/** 31 * JSON type identifier. Basic types are: 32 * o Object 33 * o Array 34 * o String 35 * o Other primitive: number, boolean (true/false) or null 36 */ 37typedef enum { 38 JSMN_PRIMITIVE = 0, 39 JSMN_OBJECT = 1, 40 JSMN_ARRAY = 2, 41 JSMN_STRING = 3 42} jsmntype_t; 43 44typedef enum { 45 /* Not enough tokens were provided */ 46 JSMN_ERROR_NOMEM = -1, 47 /* Invalid character inside JSON string */ 48 JSMN_ERROR_INVAL = -2, 49 /* The string is not a full JSON packet, more bytes expected */ 50 JSMN_ERROR_PART = -3 51} jsmnerr_t; 52 53/** 54 * JSON token description. 55 * @param type type (object, array, string etc.) 56 * @param start start position in JSON data string 57 * @param end end position in JSON data string 58 */ 59typedef struct { 60 jsmntype_t type; 61 int start; 62 int end; 63 int size; 64#ifdef JSMN_PARENT_LINKS 65 int parent; 66#endif 67} jsmntok_t; 68 69/** 70 * JSON parser. Contains an array of token blocks available. Also stores 71 * the string being parsed now and current position in that string 72 */ 73typedef struct { 74 unsigned int pos; /* offset in the JSON string */ 75 unsigned int toknext; /* next token to allocate */ 76 int toksuper; /* superior token node, e.g parent object or array */ 77} jsmn_parser; 78 79/** 80 * Create JSON parser over an array of tokens 81 */ 82void jsmn_init(jsmn_parser *parser); 83 84/** 85 * Run JSON parser. It parses a JSON data string into and array of tokens, each describing 86 * a single JSON object. 87 */ 88jsmnerr_t jsmn_parse(jsmn_parser *parser, const char *js, unsigned long len, 89 jsmntok_t *tokens, unsigned int num_tokens); 90 91#ifdef __cplusplus 92} 93#endif 94 95#endif /* _BMK_CORE_JSMN_H_ */ 96