mh5json.c File Reference

string parsing utility functions described by the [JSON] schema More...

#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "mh5debug.h"
#include "mh5json.h"
#include "mh5memory.h"

Macros
#define	SPECIAL_CHARS   "{}[]:,\" \n\r\t"
#define	OPEN_CURLY   '{'
#define	CLSE_CURLY   '}'
#define	OPEN_SQUARE   '['
#define	CLSE_SQUARE   ']'
#define	COMMA   ','
#define	DBLE_QUOTE   '\"'
#define	MIN_AFTER_TOKEN   6
#define	NEXT_CHAR(p, l)   p++; l--;
#define	SKIP_TO_CHAR(p, l, c)   do { NEXT_CHAR(p, l) } while (*p != c && l != 0)
#define	SKIP_DATA(pc, lt)   while (lt != 0 && strchr(special_chars, *pc) == NULL) { NEXT_CHAR(pc, lt) }
#define	SKIP_SPACES(pc, lt)   while (lt != 0 && (*pc == ' ' || *pc == '\n' || *pc == '\r' || *pc == '\t')) { NEXT_CHAR(pc, lt) }
#define	TPARSE   TSTATE

Functions
E_JSON_STATE	JSON_Parse (U8BIT *data, U32BIT size, const S_JSON_MEMBERS *members, void *usr)
void	JSON_FreeAstring (S_STRING *p_str)
void	JSON_FreeUintArray (U32BIT *p_uint)
void	JSON_FreeStrArray (S_STRING **pp_str)

Detailed Description

string parsing utility functions described by the [JSON] schema

Date

15/07/2010

Author

Adam Sturtridge

Macro Definition Documentation

#define CLSE_CURLY   '}'

#define CLSE_SQUARE   ']'

#define COMMA   ','

#define DBLE_QUOTE   '\"'

#define MIN_AFTER_TOKEN   6

#define NEXT_CHAR	(		p,
			l
	)		p++; l--;

#define OPEN_CURLY   '{'

#define OPEN_SQUARE   '['

#define SKIP_DATA	(		pc,
			lt
	)		while (lt != 0 && strchr(special_chars, *pc) == NULL) { NEXT_CHAR(pc, lt) }

#define SKIP_SPACES	(		pc,
			lt
	)		while (lt != 0 && (*pc == ' ' || *pc == '\n' || *pc == '\r' || *pc == '\t')) { NEXT_CHAR(pc, lt) }

#define SKIP_TO_CHAR	(		p,
			l,
			c
	)		do { NEXT_CHAR(p, l) } while (*p != c && l != 0)

#define SPECIAL_CHARS   "{}[]:,\" \n\r\t"

#define TPARSE   TSTATE

Function Documentation

void JSON_FreeAstring

(

S_STRING *

p_str

)

Parameters

p_str

pointer to allocated string (JST_CBF_ASTRING)

Returns

n/a

void JSON_FreeStrArray

(

S_STRING **

pp_str

)

Parameters

array	pointer to allocated array
type	type of array (JST_CBF_ARRAY_INT or JST_CBF_ARRAY_STR) or allocated string (JST_CBF_ASTRING)

Returns

n/a

void JSON_FreeUintArray

(

U32BIT *

p_uint

)

Parameters

p_uint

pointer to allocated int array (JST_CBF_ARRAY_INT)

Returns

n/a

E_JSON_STATE JSON_Parse	(	U8BIT *	data,
		U32BIT	size,
		const S_JSON_MEMBERS *	members,
		void *	usr
	)

Parameters

data	pointer to JSON formated data
size	number of bytes of JSON data
members	array of [token, type, callback func]

Returns

JSON_ERROR, - encountered wrong data JSON_OKAY - success JSON_MAIN,JSON_NEXT - data ended while still processing