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#ifndef ANY_JSON_INCLUDE
#define ANY_JSON_INCLUDE
#include <stdbool.h>
typedef int (*any_json_write_fputs_t)(const char *string, void *stream);
typedef struct {
void *stream;
any_json_write_fputs_t fputs;
int indent;
bool first;
bool pretty;
} any_json_write_t;
void any_json_write_init(any_json_write_t *json, void *stream,
any_json_write_fputs_t fputs, bool pretty);
bool any_json_write_open_object(any_json_write_t *json);
bool any_json_write_close_object(any_json_write_t *json);
bool any_json_write_open_array(any_json_write_t *json);
bool any_json_write_close_array(any_json_write_t *json);
bool any_json_write_member(any_json_write_t *json, const char *key);
bool any_json_write_string(any_json_write_t *json, const char *string);
bool any_json_write_number(any_json_write_t *json, double value);
bool any_json_write_bool(any_json_write_t *json, bool value);
bool any_json_write_null(any_json_write_t *json);
#endif
#ifdef ANY_JSON_IMPLEMENT
#include <string.h>
#include <ctype.h>
#ifndef ANY_JSON_INDENT
#define ANY_JSON_INDENT 4
#endif
static void any_json_write_indent(any_json_write_t *json, bool newline)
{
if (json->pretty) {
if (newline)
json->fputs("\n", json->stream);
for (int i = 0; i < json->indent; i++)
json->fputs(" ", json->stream);
}
}
void any_json_write_init(any_json_write_t *json, void *stream,
any_json_write_fputs_t fputs, bool pretty)
{
memset(json, 0, sizeof(any_json_write_t));
json->stream = stream;
json->fputs = fputs;
json->pretty = pretty;
}
bool any_json_write_open_object(any_json_write_t *json)
{
json->indent += ANY_JSON_INDENT;
json->first = true;
json->fputs("{", json->stream);
}
bool any_json_write_close_object(any_json_write_t *json)
{
json->indent -= ANY_JSON_INDENT;
json->first = false;
any_json_write_indent(json, true);
json->fputs("}", json->stream);
}
bool any_json_write_open_array(any_json_write_t *json)
{
json->indent += ANY_JSON_INDENT;
json->first = true;
json->fputs("[", json->stream);
}
bool any_json_write_close_array(any_json_write_t *json)
{
json->indent -= ANY_JSON_INDENT;
json->first = false;
any_json_write_indent(json, true);
json->fputs("]", json->stream);
}
bool any_json_write_member(any_json_write_t *json, const char *key)
{
if (!json->first)
json->fputs(",", json->stream);
any_json_write_indent(json, true);
json->first = false;
if (key != NULL) {
any_json_write_string(json, key);
json->fputs(json->pretty ? ": " : ":", json->stream);
}
}
#ifndef ANY_JSON_BUFFER_SIZE
#define ANY_JSON_BUFFER_SIZE 512
#endif
bool any_json_write_string(any_json_write_t *json, const char *string)
{
json->fputs("\"", json->stream);
char buffer[ANY_JSON_BUFFER_SIZE] = { 0 };
size_t t = 0;
for (size_t i = 0; string[i] != '\0'; ++i) {
if (t + 6 >= sizeof(buffer)) {
buffer[t] = '\0';
json->fputs(buffer, json->stream);
t = 0;
}
if (iscntrl(string[i])) {
buffer[t++] = '\\';
switch (string[i]) {
case '\b':
buffer[t++] = 'b';
break;
case '\f':
buffer[t++] = 'f';
break;
case '\n':
buffer[t++] = 'n';
break;
case '\r':
buffer[t++] = 'r';
break;
case '\t':
buffer[t++] = 't';
break;
default:
t += sprintf(buffer + t, "u%04x", string[i]);
break;
}
} else {
if (string[i] == '"' || string[i] == '\\' || string[i] == '/')
buffer[t++] = '\\';
buffer[t++] = string[i];
}
}
buffer[t] = '\0';
json->fputs(buffer, json->stream);
json->fputs("\"", json->stream);
}
#ifndef ANY_JSON_NUMBER_FORMAT
#define ANY_JSON_NUMBER_FORMAT "%.17g"
#endif
bool any_json_write_number(any_json_write_t *json, double value)
{
char buffer[ANY_JSON_BUFFER_SIZE] = { 0 };
snprintf(buffer, sizeof(buffer), ANY_JSON_NUMBER_FORMAT, value);
json->fputs(buffer, json->stream);
}
bool any_json_write_bool(any_json_write_t *json, bool value)
{
json->fputs(value ? "true" : "false", json->stream);
}
bool any_json_write_null(any_json_write_t *json)
{
json->fputs("null", json->stream);
}
#endif
// MIT License
//
// Copyright (c) 2025 Federico Angelilli
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
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