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// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
/*
* Simple streaming JSON writer
*
* This takes care of the annoying bits of JSON syntax like the commas
* after elements
*
* Authors: Stephen Hemminger <stephen@networkplumber.org>
*
* Borrowed from Linux kernel [5.17.0]: tools/bpf/bpftool/json_writer.[hc]
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdarg.h>
#include <assert.h>
#include <malloc.h>
#include <inttypes.h>
#include <stdint.h>
#include "../lib/sg_json_builder.h"
#include "sg_pr2serr.h"
#define MY_NAME "sg_tst_json_builder"
static json_serialize_opts out_settings = {
json_serialize_mode_multiline,
0,
4
};
int
main(int argc, char * argv[])
{
size_t len;
sgj_state jstate;
sgj_state * jstp = &jstate;
json_value * jv1p;
json_value * jv2p;
json_value * jv3p = json_object_new(0);
json_value * jvp = NULL;
json_value * jv4p;
json_value * jv5p;
json_value * ja1p = json_array_new(0);
json_value * ja2p;
json_value * jsp = json_string_new("hello world 1");
json_value * js2p = json_string_new("hello world 2");
json_value * js3p = json_string_new("hello world 3");
json_value * js10 = json_string_new("good-bye world");
json_value * js11 = json_string_new("good-bye world 2");
json_value * js12 = json_string_new("duplicate name 1");
char b[8192];
sgj_init_state(jstp, NULL);
jvp = sgj_start_r(MY_NAME, "0.02 20220503", argc, argv, jstp);
jv1p = json_object_push(jvp, "contents", jsp);
if (jvp == jv1p)
printf("jvp == jv1p\n");
else
printf("jvp != jv1p\n");
#if 1
json_array_push(ja1p, js2p);
jv2p = json_object_push(jvp, "extra", js3p);
if (jv2p)
printf("jv2p->type=%d\n", jv2p->type);
else
printf("jv2p is NULL\n");
ja2p = json_array_push(ja1p, json_string_new(
"test double quote, etc: \" world \\ 99\t\ttwo tabs"));
if (ja2p)
printf("ja2p->type=%d\n", ja2p->type);
else
printf("ja2p is NULL\n");
// json_object_push(ja2p, "boo", json_string_new("hello world 88"));
json_object_push(jvp, "a_array", ja1p);
jv4p = json_object_push(jvp, "a_object", jv3p);
if (jv4p)
printf("jv4p->type=%d\n", jv4p->type);
else
printf("jv4p is NULL\n");
json_object_push(jv4p, "test", js10);
json_object_push(jv4p, "test2", js11);
json_object_push(jv4p, "test", js12);
// ja3p = json_array_push(ja2p, json_string_new("good-bye"));
// jv4p = json_object_push(jvp, "a_array", ja2p);
// jv5p = json_object_merge(jvp, ja1p);
#endif
jv5p = jvp;
len = json_measure_ex(jv5p, out_settings);
printf("jvp length: %zu bytes\n", len);
if (len < sizeof(b)) {
json_serialize_ex(b, jv5p, out_settings);
printf("json serialized:\n");
printf("%s\n", b);
} else
printf("since json output length [%zu] > 8192, skip outputting\n",
len);
json_builder_free(jvp);
return 0;
}
#if 0
int main(int argc, char **argv)
{
json_writer_t *wr = jsonw_new(stdout);
jsonw_start_object(wr);
jsonw_pretty(wr, true);
jsonw_name(wr, "Vyatta");
jsonw_start_object(wr);
jsonw_string_field(wr, "url", "http://vyatta.com");
jsonw_uint_field(wr, "downloads", 2000000ul);
jsonw_float_field(wr, "stock", 8.16);
jsonw_name(wr, "ARGV");
jsonw_start_array(wr);
while (--argc)
jsonw_string(wr, *++argv);
jsonw_end_array(wr);
jsonw_name(wr, "empty");
jsonw_start_array(wr);
jsonw_end_array(wr);
jsonw_name(wr, "NIL");
jsonw_start_object(wr);
jsonw_end_object(wr);
jsonw_null_field(wr, "my_null");
jsonw_name(wr, "special chars");
jsonw_start_array(wr);
jsonw_string_field(wr, "slash", "/");
jsonw_string_field(wr, "newline", "\n");
jsonw_string_field(wr, "tab", "\t");
jsonw_string_field(wr, "ff", "\f");
jsonw_string_field(wr, "quote", "\"");
jsonw_string_field(wr, "tick", "\'");
jsonw_string_field(wr, "backslash", "\\");
jsonw_end_array(wr);
jsonw_name(wr, "ARGV");
jsonw_start_array(wr);
jsonw_string(wr, "boo: appended or new entry?");
jsonw_end_array(wr);
jsonw_end_object(wr);
jsonw_end_object(wr);
jsonw_destroy(&wr);
return 0;
}
#endif
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