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      1 /*-
      2  * Copyright (c) 2010,2011 Alistair Crooks <agc (at) NetBSD.org>
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     15  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     16  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     17  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     18  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     19  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 #ifndef MJ_H_
     26 #define MJ_H_	20110607
     27 
     28 enum {
     29 	MJ_NULL		= 1,
     30 	MJ_FALSE	= 2,
     31 	MJ_TRUE		= 3,
     32 	MJ_NUMBER	= 4,
     33 	MJ_STRING	= 5,
     34 	MJ_ARRAY	= 6,
     35 	MJ_OBJECT	= 7,
     36 
     37 	MJ_LAST		= MJ_OBJECT,
     38 
     39 	MJ_HUMAN	= 0,	/* human readable, not encoded */
     40 	MJ_JSON_ENCODE	= 1	/* encoded JSON */
     41 };
     42 
     43 /* a minimalist JSON node */
     44 typedef struct mj_t {
     45 	unsigned	type;		/* type of JSON node */
     46 	unsigned	c;		/* # of chars */
     47 	unsigned	size;		/* size of array */
     48 	union {
     49 		struct mj_t	*v;	/* sub-objects */
     50 		char		*s;	/* string value */
     51 	} value;
     52 } mj_t;
     53 
     54 /* creation and deletion */
     55 int mj_create(mj_t */*atom*/, const char */*type*/, .../*value*/);
     56 int mj_parse(mj_t */*atom*/, const char */*s*/, int */*from*/,
     57 		int */*to*/, int */*token*/);
     58 int mj_append(mj_t */*atom*/, const char */*type*/, .../*value*/);
     59 int mj_append_field(mj_t */*atom*/, const char */*name*/, const char */*type*/,
     60 		.../*value*/);
     61 int mj_deepcopy(mj_t */*dst*/, mj_t */*src*/);
     62 void mj_delete(mj_t */*atom*/);
     63 
     64 /* JSON object access */
     65 int mj_arraycount(mj_t */*atom*/);
     66 int mj_object_find(mj_t */*atom*/, const char */*name*/,
     67 		const unsigned /*from*/, const unsigned /*incr*/);
     68 mj_t *mj_get_atom(mj_t */*atom*/, ...);
     69 int mj_lint(mj_t */*atom*/);
     70 
     71 /* textual output */
     72 int mj_snprint(char */*buf*/, size_t /*size*/, mj_t */*atom*/, int /*encoded*/);
     73 int mj_asprint(char **/*bufp*/, mj_t */*atom*/, int /*encoded*/);
     74 int mj_string_size(mj_t */*atom*/);
     75 int mj_pretty(mj_t */*atom*/, void */*fp*/, unsigned /*depth*/,
     76 		const char */*trailer*/);
     77 const char *mj_string_rep(mj_t */*atom*/);
     78 
     79 #endif
     80