File:
[ELWIX - Embedded LightWeight unIX -] /
libelwix /
example /
test_json.c
Revision
1.4:
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Sun Mar 21 01:32:04 2021 UTC (3 years, 1 month ago) by
misho
Branches:
MAIN
CVS tags:
elwix5_9,
elwix5_8,
elwix5_7,
elwix5_6,
elwix5_5,
elwix5_4,
elwix5_3,
elwix5_2,
elwix5_12,
elwix5_11,
elwix5_10,
elwix5_1,
elwix5_0,
HEAD,
ELWIX5_9,
ELWIX5_8,
ELWIX5_7,
ELWIX5_6,
ELWIX5_5,
ELWIX5_4,
ELWIX5_3,
ELWIX5_2,
ELWIX5_11,
ELWIX5_10,
ELWIX5_1,
ELWIX5_0,
ELWIX4_26
ver 4.26
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <elwix.h>
int
run_simple(json_t *json)
{
static const char *teststr = "{\"user\": \"johndoe\", { \"meow\", \"\", \"\aaa\"}, \"admin\": false, \"uid\": 1000, \"objects\" : { \"a\":\"1\", \"b\" : \"2\" ,\"c\" : \"3\", , \"oho\"},\n"
"\"groups\": [\"users\", \"\", \"wheel\", \"audio\", \"video\"], \"testend\":{\"x\" : \"8\", \"y\":\"7\", \"z\" : \"9\"}}";
// static const char *teststr = "{}\n[]\n\"sdfsdf\"";
int i, ret;
jtok_t *tok, toks[36];
ait_val_t *v;
char *str;
array_t *arr;
json_init(json, 0);
ret = json_parse(json, teststr, strlen(teststr), NULL, 0);
if (ret == -1) {
printf("Error:: #%d - %s\n", elwix_GetErrno(), elwix_GetError());
return 1;
} else
printf("We are need from %d tokens\n", ret);
json_init(json, 1);
ret = json_parse(json, teststr, strlen(teststr), NULL, 0);
if (ret == -1) {
printf("Error:: #%d - %s\n", elwix_GetErrno(), elwix_GetError());
return 1;
} else
printf("(strict) We are need from %d tokens\n", ret);
json_init(json, 0);
ret = json_parse(json, teststr, strlen(teststr), toks, sizeof toks/sizeof *toks);
if (ret == -1) {
printf("Error:: #%d - %s\n", elwix_GetErrno(), elwix_GetError());
return 1;
} else
printf("We parsed %d tokens next=%lu\n", ret, json->h_next);
memset(toks, 0, sizeof toks);
json_init(json, 1);
ret = json_parse(json, teststr, strlen(teststr), toks, sizeof toks/sizeof *toks);
if (ret == -1) {
printf("Error:: #%d - %s\n", elwix_GetErrno(), elwix_GetError());
return 1;
} else
printf("(strict) We parsed %d tokens next=%lu\n", ret, json->h_next);
if (!(tok = json_findbykey(teststr, "boza s kosmi", J_UNDEF, toks, ret)))
printf("Key=\"boza s kosmi\" not found!\n");
tok = json_findbykey(teststr, "user", J_UNDEF, toks, ret);
if (tok) {
v = json_token2val(teststr, tok);
printf("Key=\"user\" data parent=%ld idx=%ld size=%ld type=%d %s\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type, AIT_GET_STR(v));
ait_freeVar(&v);
}
tok = json_findbykey(teststr, "admin", J_VALUE, toks, ret);
if (tok) {
str = json_token2str(teststr, tok);
printf("Key=\"admin\" data parent=%ld idx=%ld size=%ld type=%d %s\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type, str);
e_free(str);
}
tok = json_findbykey(teststr, "uid", J_UNDEF, toks, ret);
if (tok) {
printf("Key=\"uid\" data parent=%ld idx=%ld size=%ld type=%d %ld\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type,
json_token2num(teststr, tok));
arr = json_token2array(teststr, tok);
for (i = 0; i < array_Size(arr); i++)
printf("arr[%d]=%s\n", i, AIT_GET_STR(array(arr, i, ait_val_t*)));
ait_freeVars(&arr);
}
tok = json_findbykey(teststr, "groups", J_UNDEF, toks, ret);
if (tok) {
str = json_token2str(teststr, tok);
arr = json_token2array(teststr, tok);
printf("Key=\"groups\" data parent=%ld idx=%ld size=%ld type=%d %s\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type, str);
e_free(str);
for (i = 0; i < array_Size(arr); i++)
printf("arr[%d]=%s\n", i, AIT_GET_STR(array(arr, i, ait_val_t*)));
ait_freeVars(&arr);
}
tok = json_findbykey(teststr, "objects", J_UNDEF, toks, ret);
if (tok) {
str = json_token2str(teststr, tok);
arr = json_token2array(teststr, tok);
printf("Key=\"objects\" data parent=%ld idx=%ld size=%ld type=%d %s\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type, str);
e_free(str);
for (i = 0; i < array_Size(arr); i++)
printf("arr[%d]=%s\n", i, AIT_GET_STR(array(arr, i, ait_val_t*)));
ait_freeVars(&arr);
}
tok = json_findbykey(teststr, "testend", J_UNDEF, toks, ret);
if (tok) {
str = json_token2str(teststr, tok);
arr = json_token2array(teststr, tok);
printf("Key=\"testend\" data parent=%ld idx=%ld size=%ld type=%d %s\n", tok->tok_parent, tok->tok_idx, tok->tok_size, tok->tok_type, str);
e_free(str);
for (i = 0; i < array_Size(arr); i++)
printf("arr[%d]=%s\n", i, AIT_GET_STR(array(arr, i, ait_val_t*)));
ait_freeVars(&arr);
}
return 0;
}
static int
dump(const char *jstr, jtok_t *toks, int toksnum, int indent)
{
register int i, j, k;
if (!toksnum)
return 0;
if (toks->tok_type == J_VALUE) {
printf("%.*s", (int) json_toklen(toks), json_tokstr(jstr, toks));
return 1;
} else if (toks->tok_type == J_STRING) {
printf("%.*s", (int) json_toklen(toks), json_tokstr(jstr, toks));
return 1;
} else if (toks->tok_type == J_OBJECT) {
printf("\n");
for (j = i = 0; i < json_toksize(toks); i++) {
for (k = 0; k < indent; k++)
printf(" ");
j += dump(jstr, toks + j + 1, toksnum - j, indent + 1);
printf(": ");
j += dump(jstr, toks + j + 1, toksnum - j, indent + 1);
printf("\n");
}
return j + 1;
} else if (toks->tok_type == J_ARRAY) {
printf("\n");
for (j = i = 0; i < json_toksize(toks); i++) {
for (k = 0; k < indent - 1; k++)
printf(" ");
printf(" - ");
j += dump(jstr, toks + j + 1, toksnum - j, indent + 1);
printf("\n");
}
return j + 1;
}
return 0;
}
int
run_dump(json_t *json, char **args)
{
int rlen, toksnum, wait4eof = 0;
char buf[BUFSIZ];
ait_val_t v;
jtok_t *toks, *t;
FILE *f;
json_init(json, 0);
f = fopen(args[1], "r");
if (!f) {
printf("fopen(%s) #%d - %s\n", *args, errno, strerror(errno));
return 1;
}
toks = e_malloc(sizeof(jtok_t));
if (!toks) {
fclose(f);
return 1;
} else
toksnum = 1;
AIT_SET_STRSIZ(&v, 1);
while (42) {
memset(buf, 0, sizeof buf);
rlen = fread(buf, 1, sizeof buf, f);
switch (rlen) {
case -1:
printf("Error:: fread() #%d - %s\n", errno, strerror(errno));
AIT_FREE_VAL(&v);
e_free(toks);
fclose(f);
return 2;
case 0:
if (wait4eof)
return 0;
printf("Error:: Unexpected termination!\n");
AIT_FREE_VAL(&v);
e_free(toks);
fclose(f);
return 3;
default:
AIT_SET_STRCAT(&v, buf);
break;
}
again:
rlen = json_parse(json, AIT_GET_STR(&v), AIT_LEN(&v), toks, toksnum);
if (rlen == (u_int) -1) {
if (elwix_GetErrno() == J_ERR_NOMEM) {
toksnum *= 2;
t = e_realloc(toks, sizeof(jtok_t) * toksnum);
if (t) {
toks = t;
goto again;
}
}
} else {
dump(AIT_GET_STR(&v), toks, json->h_next, 0);
wait4eof = 1;
}
}
AIT_FREE_VAL(&v);
e_free(toks);
fclose(f);
return 0;
}
int
run_make()
{
char str[BUFSIZ];
ait_val_t *v;
array_t *arr;
arr = ait_allocVars(4);
v = ait_getVars(&arr, 0);
AIT_SET_I16(v, 4444);
v = ait_getVars(&arr, 1);
AIT_SET_STR(v, "sezam");
v = ait_getVars(&arr, 2);
AIT_SET_U8(v, 0x1c);
v = ait_getVars(&arr, 3);
AIT_SET_STR(v, "0x45af");
json_add_begin_object(str, sizeof str, 42);
json_add_pair(str, sizeof str, 42, "boza", "s kosmi");
json_add_comma(str, sizeof str, 42);
json_add_string(str, sizeof str, 0, "number");
json_add_colon(str, sizeof str, 42);
json_add_value(str, sizeof str, 0, 1234567890);
json_add_comma(str, sizeof str, 42);
json_add_string(str, sizeof str, 0, "obj__");
json_add_colon(str, sizeof str, 42);
json_add_begin_object(str, sizeof str, 42);
json_add_pair(str, sizeof str, 42, "subkey", "val0");
json_add_end_object(str, sizeof str, 42);
json_add_comma(str, sizeof str, 42);
json_add_string(str, sizeof str, 0, "arr4e");
json_add_colon(str, sizeof str, 42);
json_add_array(str, sizeof str, 42, arr);
json_add_end_object(str, sizeof str, 42);
ait_freeVars(&arr);
printf("%s\n", str);
return 0;
}
int
run_stdin(json_t *json)
{
char szJSON[BUFSIZ] = { [0 ... BUFSIZ - 1] = 0 };
jtok_t *tok, toks[1024];
int ret;
char *str;
printf("Input JSON> ");
fgets(szJSON, sizeof szJSON, stdin);
printf("Readed JSON> %s", szJSON);
json_init(json, 0);
ret = json_parse(json, szJSON, strlen(szJSON), toks, sizeof toks/sizeof *toks);
if (ret == -1) {
printf("Error:: #%d - %s\n", elwix_GetErrno(), elwix_GetError());
return 1;
} else
printf("We parsed %d tokens next=%lu\n", ret, json->h_next);
printf("dump=%d\n", json_dump(stdout, szJSON, toks, json->h_next, 0));
tok = json_findbykey(szJSON, "aaa", J_STRING, toks, ret);
if (tok) {
str = json_token2str(szJSON, tok);
if (str) {
printf("str=%s\n", str);
json_freestr(str);
}
}
return 0;
}
int
main(int argc, char **argv)
{
json_t json;
if (argc < 2)
return run_stdin(&json);
else if (argc < 3)
return run_simple(&json);
else if (argc < 4)
return run_make();
else
return run_dump(&json, argv);
return 0;
}
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