Return to ajson.h CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / libelwix / inc / elwix

adds initial structures

    1: /*************************************************************************
    2: * (C) 2017 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
    3: *  by Michael Pounov <misho@elwix.org>
    4: *
    5: * $Author: misho $
    6: * $Id: ajson.h,v 1.1.2.2 2017/11/24 10:29:15 misho Exp $
    7: *
    8: **************************************************************************
    9: The ELWIX and AITNET software is distributed under the following
   10: terms:
   11: 
   12: All of the documentation and software included in the ELWIX and AITNET
   13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
   14: 
   15: Copyright 2004 - 2017
   16: 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
   17: 
   18: Redistribution and use in source and binary forms, with or without
   19: modification, are permitted provided that the following conditions
   20: are met:
   21: 1. Redistributions of source code must retain the above copyright
   22:    notice, this list of conditions and the following disclaimer.
   23: 2. Redistributions in binary form must reproduce the above copyright
   24:    notice, this list of conditions and the following disclaimer in the
   25:    documentation and/or other materials provided with the distribution.
   26: 3. All advertising materials mentioning features or use of this software
   27:    must display the following acknowledgement:
   28: This product includes software developed by Michael Pounov <misho@elwix.org>
   29: ELWIX - Embedded LightWeight unIX and its contributors.
   30: 4. Neither the name of AITNET nor the names of its contributors
   31:    may be used to endorse or promote products derived from this software
   32:    without specific prior written permission.
   33: 
   34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
   35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   37: ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   44: SUCH DAMAGE.
   45: */
   46: #ifndef __AJSON_H
   47: #define __AJSON_H
   48: 
   49: 
   50: /* JSON type identifiers */
   51: typedef enum {
   52: 	J_UNDEF = 0,
   53: 	J_OBJECT = 1,
   54: 	J_ARRAY = 2,
   55: 	J_STRING = 3,
   56: 	J_NUMBER = 4,
   57: 	J_BOOL = 5,
   58: 	J_NULL = 6
   59: } jtype_t;
   60: 
   61: /* JSON error numbers */
   62: typedef enum {
   63: 	J_ERR_OK = 0,
   64: 	J_ERR_NOMEM = 1,
   65: 	J_ERR_INVAL = 2,
   66: 	J_ERR_PART = 3
   67: } jerr_t;
   68: 
   69: /* JSON error strings */
   70: typedef const char jerrstr[] = {
   71: 	"No error",
   72: 	"Not enough tokens were provided",
   73: 	"Invalid character",
   74: 	"JSON string isn't full",
   75: 	NULL
   76: };
   77: 
   78: typedef struct _tagParser {
   79: 	unsigned long	pos;
   80: 	unsigned long	next;
   81: 	long		parent;
   82: } json_t;
   83: 
   84: typedef struct _tagToken {
   85: 	jtype_t		tok_type;
   86: 	long		tok_start;
   87: 	long		tok_end;
   88: 	long		tok_size;
   89: 	long		tok_parent;
   90: } jtok_t;
   91: 
   92: 
   93: /*
   94:  * json_init() - Initialize JSON handler
   95:  *
   96:  * @json = JSON handler, if there is NULL then dynamically will be allocated
   97:  * return: =NULL error or !=NULL ready for use JSON handler.
   98:  */
   99: json_t *json_init(json_t * __restrict json);
  100: 
  101: /*
  102:  * json_free() - Free JSON handler
  103:  *
  104:  * @json = JSON handler
  105:  * return: none
  106:  */
  107: void json_free(json_t **json);
  108: 
  109: /*
  110:  * json_parse() - Parse JSON string
  111:  *
  112:  * @json = JSON handler
  113:  * @jstr = JSON string
  114:  * @jlen = JSON string length
  115:  * @jtoks = Token array
  116:  * @toksnum = Token array size, return number of allocated tokens in array
  117:  * return: -1 error or number of found tokens 
  118:  */
  119: unsigned int json_parse(json_t * __restrict json, const char *jstr, size_t jlen, 
  120: 		jtok_t * __restrict jtoks, unsigned int toksnum);
  121: 
  122: 
  123: #endif