150 lines
3.7 KiB
C
150 lines
3.7 KiB
C
/* $NetBSD: json.c,v 1.1.1.1 2011/04/13 18:14:32 elric Exp $ */
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/*
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* Copyright (c) 2010 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Portions Copyright (c) 2010 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "baselocl.h"
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int
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heim_base2json(heim_object_t obj,
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void (*out)(char *, void *), void *ctx)
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{
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heim_tid_t type = heim_get_tid(obj);
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__block int fail = 0, needcomma = 0;
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switch (type) {
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case HEIM_TID_ARRAY:
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out("[ ", ctx);
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heim_array_iterate(obj, ^(heim_object_t sub) {
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if (needcomma)
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out(", ", ctx);
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fail |= heim_base2json(sub, out, ctx);
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needcomma = 1;
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});
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out("]", ctx);
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break;
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case HEIM_TID_DICT:
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out("{ ", ctx);
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heim_dict_iterate(obj, ^(heim_object_t key, heim_object_t value) {
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if (needcomma)
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out(", ", ctx);
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fail |= heim_base2json(key, out, ctx);
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out(" = ", ctx);
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fail |= heim_base2json(value, out, ctx);
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needcomma = 1;
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});
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out("}", ctx);
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break;
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case HEIM_TID_STRING:
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out("\"", ctx);
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out(heim_string_get_utf8(obj), ctx);
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out("\"", ctx);
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break;
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case HEIM_TID_NUMBER: {
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char num[16];
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snprintf(num, sizeof(num), "%d", heim_number_get_int(obj));
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out(num, ctx);
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break;
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}
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case HEIM_TID_NULL:
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out("null", ctx);
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break;
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case HEIM_TID_BOOL:
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out(heim_bool_val(obj) ? "true" : "false", ctx);
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break;
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default:
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return 1;
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}
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return fail;
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}
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static int
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parse_dict(heim_dict_t dict, char * const *pp, size_t *len)
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{
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const char *p = *pp;
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while (*len) {
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(*len)--;
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if (*p == '\n') {
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p += 1;
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} else if (isspace(*p)) {
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p += 1;
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} else if (*p == '}') {
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*pp = p + 1;
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return 0;
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} else {
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}
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}
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return ENOENT;
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}
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heim_object_t
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heim_json2base(const void *data, size_t length)
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{
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heim_array_t stack;
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heim_object_t o = NULL;
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const char *p = data;
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unsigned long lineno = 1;
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while (length) {
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length--;
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if (*p == '\n') {
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lineno++;
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} else if (isspace((int)*p)) {
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;
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} else if (*p == '{') {
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o = heim_dict_create();
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if ((ret = parse_dict(&p, &length)) != 0)
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goto out;
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} else
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abort();
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}
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out:
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if (ret && o) {
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heim_release(o);
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o = NULL;
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}
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return o;
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}
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