json.h

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/* This file is part of the YAZ toolkit.
 * Copyright (C) 1995-2013 Index Data.
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Index Data nor the names of its contributors
 *       may be used to endorse or promote products derived from this
 *       software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef YAZ_JSON_H
#define YAZ_JSON_H
#include <yaz/wrbuf.h>

YAZ_BEGIN_CDECL

enum json_node_type {
    json_node_object, 
    json_node_array,  
    json_node_list,   
    json_node_pair,   
    json_node_string, 
    json_node_number, 
    json_node_true,   
    json_node_false,  
    json_node_null    
};

struct json_node {
    enum json_node_type type;
    union {
        char *string;
        double number;
        struct json_node *link[2];
    } u;
};

typedef struct json_parser_s *json_parser_t;

YAZ_EXPORT
json_parser_t json_parser_create(void);

YAZ_EXPORT
void json_parser_destroy(json_parser_t p);

YAZ_EXPORT
struct json_node *json_parser_parse(json_parser_t p, const char *json_str);

YAZ_EXPORT
const char *json_parser_get_errmsg(json_parser_t p);

YAZ_EXPORT
size_t json_parser_get_position(json_parser_t p);

YAZ_EXPORT
struct json_node *json_parse(const char *json_str, const char **errmsg);

YAZ_EXPORT
struct json_node *json_parse2(const char *json_str, const char **errmsg,
                              size_t *pos);

YAZ_EXPORT
void json_remove_node(struct json_node *n);

YAZ_EXPORT
struct json_node *json_get_object(struct json_node *n, const char *name);

YAZ_EXPORT
struct json_node *json_detach_object(struct json_node *n, const char *name);

YAZ_EXPORT
struct json_node *json_get_elem(struct json_node *n, int idx);

YAZ_EXPORT
int json_count_children(struct json_node *n);

YAZ_EXPORT
int json_append_array(struct json_node *dst, struct json_node *src);

YAZ_EXPORT
void json_parser_subst(json_parser_t p, int idx, struct json_node *n);

YAZ_EXPORT
void json_write_wrbuf(struct json_node *node, WRBUF result);

YAZ_EXPORT
void json_write_wrbuf_pretty(struct json_node *node, WRBUF result);

YAZ_EXPORT
void wrbuf_json_puts(WRBUF b, const char *str);

YAZ_END_CDECL

#endif

/*
 * Local variables:
 * c-basic-offset: 4
 * c-file-style: "Stroustrup"
 * indent-tabs-mode: nil
 * End:
 * vim: shiftwidth=4 tabstop=8 expandtab
 */