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/*************************************************************************//**
*
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
****************************************************************************/
#ifndef __JSMN_H_
#define __JSMN_H_
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* JSON type identifier. Basic types are:
* o Object
* o Array
* o String
* o Other primitive: number, boolean (true/false) or null
*/
typedef enum {
JSMN_UNDEFINED = 0,
JSMN_OBJECT = 1,
JSMN_ARRAY = 2,
JSMN_STRING = 3,
JSMN_PRIMITIVE = 4
} jsmntype_t;
enum jsmnerr {
/* Not enough tokens were provided */
JSMN_ERROR_NOMEM = -1,
/* Invalid character inside JSON string */
JSMN_ERROR_INVAL = -2,
/* The string is not a full JSON packet, more bytes expected */
JSMN_ERROR_PART = -3
};
typedef struct arrayValues {
char arrayString[32];
} ARRAYVAL;
typedef struct keyValResult {
char keyStr[80];
char valStr[250];
char resultStr[80];
} KEYVALRESULT;
/**
* JSON token description.
* @param type type (object, array, string etc.)
* @param start start position in JSON data string
* @param end end position in JSON data string
*/
typedef struct {
jsmntype_t type;
int start;
int end;
int size;
//#ifdef JSMN_PARENT_LINKS
int parent;
//#endif
} jsmntok_t;
/**
* JSON parser. Contains an array of token blocks available. Also stores
* the string being parsed now and current position in that string
*/
typedef struct {
unsigned int pos; /* offset in the JSON string */
unsigned int toknext; /* next token to allocate */
int toksuper; /* superior token node, e.g parent object or array */
} jsmn_parser;
#define TOKEN_EQ(t, tok_start, tok_end, tok_type) \
((t).start == tok_start \
&& (t).end == tok_end \
&& (t).type == (tok_type))
#define TOKEN_STRING(js, t, s) \
(strncmp(js+(t).start, s, (t).end - (t).start) == 0 \
&& strlen(s) == (t).end - (t).start)
#define TOKEN_COPY(js, t, s) \
strncpy(s, js+(t).start, (t).end - (t).start)
#define TOKEN_PRINT(t) \
printf("start: %d, end: %d, type: %d, size: %d\n", \
(t).start, (t).end, (t).type, (t).size)
/**
* Create JSON parser over an array of tokens
*/
void jsmn_init(jsmn_parser *parser);
/**
* Run JSON parser. It parses a JSON data string into and array of tokens, each describing
* a single JSON object.
*/
int jsmn_parse(jsmn_parser *parser, const char *js, size_t len,
jsmntok_t *tokens, unsigned int num_tokens);
int jsoneq(const char *json, jsmntok_t *tok, const char *s);
void printToken(char * js, jsmntok_t * tokens, int numToken);
int getStringToken(char * js, jsmntok_t * tokens, int numToken, char * param, char * pParam, char * value, int maxValueSize);
int getIntToken(char * js, jsmntok_t * tokens, int numToken, char * param, char * pParam, int * value);
int getArrayTokens(char * js, jsmntok_t * tokens, int numToken, char * param, char * pParam, ARRAYVAL * arrayValue, int * numElements);
int isTokenPresent(char * js, jsmntok_t * tokens, int numToken, char * param, char * pParam);
int read_keyVal_params(char * js, jsmntok_t * tokens, int numToken, char * param, char * pParam, KEYVALRESULT * keyValueResultList, int * numElements);
#ifdef __cplusplus
}
#endif
#endif /* __JSMN_H_ */
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