fixed some more bugs in the json parser

This commit is contained in:
hyung-hwan 2021-07-14 11:31:29 +00:00
parent 140e1126ed
commit af9aad6aae
2 changed files with 106 additions and 37 deletions

View File

@ -4,11 +4,12 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#define DEBUG
static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level, mio_oow_t index, mio_json_state_t container_state, const mio_oocs_t* str, void* ctx) static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level, mio_oow_t index, mio_json_state_t container_state, const mio_oocs_t* str, void* ctx)
{ {
mio_t* mio = mio_json_getmio(json); mio_t* mio = mio_json_getmio(json);
mio_oow_t i; mio_oow_t i;
int* pending = (int*)ctx;
switch (inst) switch (inst)
{ {
@ -18,15 +19,21 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>[\n", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "[\n"); mio_logbfmt (mio, MIO_LOG_STDOUT, "[\n");
(*pending)++; #endif
break; break;
case MIO_JSON_INST_END_ARRAY: case MIO_JSON_INST_END_ARRAY:
mio_logbfmt (mio, MIO_LOG_STDOUT, "\n"); mio_logbfmt (mio, MIO_LOG_STDOUT, "\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>]", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "]"); mio_logbfmt (mio, MIO_LOG_STDOUT, "]");
(*pending)--; #endif
break; break;
case MIO_JSON_INST_START_OBJECT: case MIO_JSON_INST_START_OBJECT:
@ -35,21 +42,31 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>{\n", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "{\n"); mio_logbfmt (mio, MIO_LOG_STDOUT, "{\n");
(*pending)++; #endif
break; break;
case MIO_JSON_INST_END_OBJECT: case MIO_JSON_INST_END_OBJECT:
mio_logbfmt (mio, MIO_LOG_STDOUT, "\n"); mio_logbfmt (mio, MIO_LOG_STDOUT, "\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>}", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "}"); mio_logbfmt (mio, MIO_LOG_STDOUT, "}");
(*pending)--; #endif
break; break;
case MIO_JSON_INST_KEY: case MIO_JSON_INST_KEY:
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>%.*js: ", (unsigned long)index, str->len, str->ptr);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "%.*js: ", str->len, str->ptr); mio_logbfmt (mio, MIO_LOG_STDOUT, "%.*js: ", str->len, str->ptr);
#endif
break; break;
case MIO_JSON_INST_NIL: case MIO_JSON_INST_NIL:
@ -58,7 +75,11 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>null", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "null"); mio_logbfmt (mio, MIO_LOG_STDOUT, "null");
#endif
break; break;
case MIO_JSON_INST_TRUE: case MIO_JSON_INST_TRUE:
@ -67,7 +88,11 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>true", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "true"); mio_logbfmt (mio, MIO_LOG_STDOUT, "true");
#endif
break; break;
case MIO_JSON_INST_FALSE: case MIO_JSON_INST_FALSE:
@ -76,7 +101,11 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>false", (unsigned long)index);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "false"); mio_logbfmt (mio, MIO_LOG_STDOUT, "false");
#endif
break; break;
case MIO_JSON_INST_NUMBER: case MIO_JSON_INST_NUMBER:
@ -85,7 +114,11 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>%.*js", (unsigned long)index, str->len, str->ptr);
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "%.*js", str->len, str->ptr); mio_logbfmt (mio, MIO_LOG_STDOUT, "%.*js", str->len, str->ptr);
#endif
break; break;
case MIO_JSON_INST_STRING: case MIO_JSON_INST_STRING:
@ -94,7 +127,11 @@ static int on_json_inst (mio_json_t* json, mio_json_inst_t inst, mio_oow_t level
if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n"); if (index > 0) mio_logbfmt (mio, MIO_LOG_STDOUT, ",\n");
for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t"); for (i = 0; i < level; i++) mio_logbfmt (mio, MIO_LOG_STDOUT, "\t");
} }
#if defined(DEBUG)
mio_logbfmt (mio, MIO_LOG_STDOUT, "<%lu>\"%.*js\"", (unsigned long)index, str->len, str->ptr); /* TODO: escaping */
#else
mio_logbfmt (mio, MIO_LOG_STDOUT, "\"%.*js\"", str->len, str->ptr); /* TODO: escaping */ mio_logbfmt (mio, MIO_LOG_STDOUT, "\"%.*js\"", str->len, str->ptr); /* TODO: escaping */
#endif
break; break;
default: default:
@ -135,12 +172,11 @@ int main (int argc, char* argv[])
char buf[128]; char buf[128];
mio_oow_t rem; mio_oow_t rem;
size_t size; size_t size;
int pending = 0;
json = mio_json_open(mio, 0); json = mio_json_open(mio, 0);
mio_json_setoption (json, o); mio_json_setoption (json, o);
mio_json_setinstcb (json, on_json_inst, &pending); mio_json_setinstcb (json, on_json_inst, MIO_NULL);
rem = 0; rem = 0;
while (!feof(stdin) || rem > 0) while (!feof(stdin) || rem > 0)
@ -176,13 +212,13 @@ int main (int argc, char* argv[])
} }
mio_logbfmt (mio, MIO_LOG_STDOUT, "\n"); mio_logbfmt (mio, MIO_LOG_STDOUT, "\n");
//if (pending) mio_logbfmt (mio, MIO_LOG_STDOUT, "**** ERROR - incomplete ****\n");
if (json->state_stack != &json->state_top) mio_logbfmt (mio, MIO_LOG_STDOUT, "**** ERROR - incomplete ****\n"); if (json->state_stack != &json->state_top) mio_logbfmt (mio, MIO_LOG_STDOUT, "**** ERROR - incomplete ****\n");
done: done:
mio_json_close (json); mio_json_close (json);
} }
mio_logbfmt (mio, MIO_LOG_STDOUT, "\n===================================\n");
{ {
mio_jsonwr_t* jsonwr = MIO_NULL; mio_jsonwr_t* jsonwr = MIO_NULL;

View File

@ -176,10 +176,9 @@ static int invoke_data_inst (mio_json_t* json, mio_json_inst_t inst)
if (ss->state == MIO_JSON_STATE_IN_OBJECT) if (ss->state == MIO_JSON_STATE_IN_OBJECT)
{ {
if (ss->u.io.state == 1) /* got colon */ if (ss->u.io.state == 1)
{ {
/* this is called after the reader has seen a colon. /* just got the key part. the colon has not been seen. */
* the data item must be used as a key */
if (inst != MIO_JSON_INST_STRING && inst != __INST_WORD_STRING) if (inst != MIO_JSON_INST_STRING && inst != __INST_WORD_STRING)
{ {
@ -189,10 +188,13 @@ static int invoke_data_inst (mio_json_t* json, mio_json_inst_t inst)
inst = MIO_JSON_INST_KEY; inst = MIO_JSON_INST_KEY;
} }
else else
{ {
/* if this variable is non-zero, level is set to 0 regardless of actual level */ /* if this variable is non-zero, level is set to 0 regardless of actual level.
is_obj_val = 1; * this helps the callback to print the value without indentation immediately
* after the key */
//is_obj_val = 1;
is_obj_val = (ss->u.io.state >= 2);
} }
} }
@ -205,23 +207,49 @@ static int invoke_data_inst (mio_json_t* json, mio_json_inst_t inst)
switch (inst) switch (inst)
{ {
case MIO_JSON_INST_START_ARRAY: case MIO_JSON_INST_START_ARRAY:
{
mio_json_state_node_t* nss;
if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1; if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1;
json->state_stack->u.ia.got_value = 0; nss = json->state_stack;
json->state_stack->level++; nss->u.ia.got_value = 0;
if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 1) ss->index++; nss->level++;
return json->instcb(json, inst, (is_obj_val? 0: json->state_stack->level - 1), ss->index - 1, ss->state, MIO_NULL, json->rctx);
MIO_ASSERT (json->mio, nss->level == ss->level + 1);
return json->instcb(json, inst, (is_obj_val? 0: ss->level), ss->index, ss->state, MIO_NULL, json->rctx);
/* no increment on ss->index here. incremented on END */
}
case MIO_JSON_INST_END_ARRAY:
if (json->instcb(json, MIO_JSON_INST_END_ARRAY, ss->level, ss->index, ss->state, MIO_NULL, json->rctx) <= -1) return -1;
if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 3) ss->index++;
break;
case MIO_JSON_INST_START_OBJECT: case MIO_JSON_INST_START_OBJECT:
{
mio_json_state_node_t* nss;
if (push_read_state(json, MIO_JSON_STATE_IN_OBJECT) <= -1) return -1; if (push_read_state(json, MIO_JSON_STATE_IN_OBJECT) <= -1) return -1;
json->state_stack->u.io.state = 0; nss = json->state_stack;
json->state_stack->level++; nss->u.io.state = 0;
if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 1) ss->index++; nss->level++;
return json->instcb(json, inst, (is_obj_val? 0: json->state_stack->level - 1), ss->index - 1, ss->state, MIO_NULL, json->rctx);
MIO_ASSERT (json->mio, nss->level == ss->level + 1);
return json->instcb(json, inst, (is_obj_val? 0: ss->level), ss->index, ss->state, MIO_NULL, json->rctx);
/* no increment on ss->index here. incremented on END */
}
case MIO_JSON_INST_END_OBJECT:
if (json->instcb(json, MIO_JSON_INST_END_OBJECT, ss->level, ss->index, ss->state, MIO_NULL, json->rctx) <= -1) return -1;
if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 3) ss->index++;
break;
default: default:
if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 1) ss->index++; if (json->instcb(json, inst, (is_obj_val? 0: ss->level), ss->index, ss->state, &json->tok, json->rctx) <= -1) return -1;
return json->instcb(json, inst, (is_obj_val? 0: json->state_stack->level), ss->index - 1, ss->state, &json->tok, json->rctx); if (ss->state != MIO_JSON_STATE_IN_OBJECT || ss->u.io.state == 3) ss->index++;
break;
} }
return 0;
} }
static int handle_string_value_char (mio_json_t* json, mio_ooci_t c) static int handle_string_value_char (mio_json_t* json, mio_ooci_t c)
@ -485,8 +513,7 @@ static int handle_char_in_array (mio_json_t* json, mio_ooci_t c)
else if (c == ']') else if (c == ']')
{ {
pop_read_state (json); pop_read_state (json);
/* START_ARRAY incremented index by 1. so subtract 1 from index before invoking instcb for END_ARRAY. */ if (invoke_data_inst(json, MIO_JSON_INST_END_ARRAY) <= -1) return -1;
if (json->instcb(json, MIO_JSON_INST_END_ARRAY, json->state_stack->level, json->state_stack->index - 1, json->state_stack->state, MIO_NULL, json->rctx) <= -1) return -1;
return 1; return 1;
} }
else if (c == ',') else if (c == ',')
@ -562,9 +589,15 @@ static int handle_char_in_object (mio_json_t* json, mio_ooci_t c)
} }
else if (c == '}') else if (c == '}')
{ {
/* 0 - initial, 1 - got key, 2 -> got colon, 3 -> got value, 0 -> after comma */
if (json->state_stack->u.io.state == 1 || json->state_stack->u.io.state == 2)
{
mio_seterrbfmt (json->mio, MIO_EINVAL, "no value for a key in object");
return -1;
}
pop_read_state (json); pop_read_state (json);
/* START_OBJECT incremented index by 1. so subtract 1 from index before invoking instcb for END_OBJECT. */ if (invoke_data_inst(json, MIO_JSON_INST_END_OBJECT) <= -1) return -1;
if (json->instcb(json, MIO_JSON_INST_END_OBJECT, json->state_stack->level, json->state_stack->index - 1, json->state_stack->state, MIO_NULL, json->rctx) <= -1) return -1;
return 1; return 1;
} }
else if (c == ':') else if (c == ':')
@ -581,7 +614,7 @@ static int handle_char_in_object (mio_json_t* json, mio_ooci_t c)
{ {
if (json->state_stack->u.io.state != 3) if (json->state_stack->u.io.state != 3)
{ {
mio_seterrbfmt (json->mio, MIO_EINVAL, "redundant comma in object - %jc", (mio_ooch_t)c); mio_seterrbfmt (json->mio, MIO_EINVAL, "comma without value or redundant comma in object - %jc", (mio_ooch_t)c);
return -1; return -1;
} }
json->state_stack->u.io.state = 0; json->state_stack->u.io.state = 0;
@ -1155,7 +1188,7 @@ static int write_uchars (mio_jsonwr_t* jsonwr, int escape, const mio_uch_t* ptr,
#define WRITE_COMMA(jsonwr) do { WRITE_BYTES_NOESC(jsonwr, ",", 1); if (jsonwr->flags & MIO_JSONWR_FLAG_PRETTY) WRITE_LINE_BREAK(jsonwr); } while(0) #define WRITE_COMMA(jsonwr) do { WRITE_BYTES_NOESC(jsonwr, ",", 1); if (jsonwr->flags & MIO_JSONWR_FLAG_PRETTY) WRITE_LINE_BREAK(jsonwr); } while(0)
#define PREACTION_FOR_VLAUE(jsonwr,sn) do { \ #define PREACTION_FOR_VALUE(jsonwr,sn) do { \
if (sn->state != MIO_JSON_STATE_IN_ARRAY && !(sn->state == MIO_JSON_STATE_IN_OBJECT && sn->obj_awaiting_val)) goto incompatible_inst; \ if (sn->state != MIO_JSON_STATE_IN_ARRAY && !(sn->state == MIO_JSON_STATE_IN_OBJECT && sn->obj_awaiting_val)) goto incompatible_inst; \
if (sn->index > 0 && sn->state == MIO_JSON_STATE_IN_ARRAY) WRITE_COMMA (jsonwr); \ if (sn->index > 0 && sn->state == MIO_JSON_STATE_IN_ARRAY) WRITE_COMMA (jsonwr); \
sn->index++; \ sn->index++; \
@ -1251,22 +1284,22 @@ int mio_jsonwr_write (mio_jsonwr_t* jsonwr, mio_json_inst_t inst, int is_uchars,
break; break;
case MIO_JSON_INST_NIL: case MIO_JSON_INST_NIL:
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
WRITE_BYTES_NOESC (jsonwr, "nil", 3); WRITE_BYTES_NOESC (jsonwr, "nil", 3);
break; break;
case MIO_JSON_INST_TRUE: case MIO_JSON_INST_TRUE:
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
WRITE_BYTES_NOESC (jsonwr, "true", 4); WRITE_BYTES_NOESC (jsonwr, "true", 4);
break; break;
case MIO_JSON_INST_FALSE: case MIO_JSON_INST_FALSE:
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
WRITE_BYTES_NOESC (jsonwr, "false", 5); WRITE_BYTES_NOESC (jsonwr, "false", 5);
break; break;
case MIO_JSON_INST_NUMBER: case MIO_JSON_INST_NUMBER:
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
if (is_uchars) if (is_uchars)
WRITE_UCHARS (jsonwr, 0, dptr, dlen); WRITE_UCHARS (jsonwr, 0, dptr, dlen);
else else
@ -1274,7 +1307,7 @@ int mio_jsonwr_write (mio_jsonwr_t* jsonwr, mio_json_inst_t inst, int is_uchars,
break; break;
case MIO_JSON_INST_STRING: case MIO_JSON_INST_STRING:
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
WRITE_BYTES_NOESC (jsonwr, "\"", 1); WRITE_BYTES_NOESC (jsonwr, "\"", 1);
if (is_uchars) WRITE_UCHARS (jsonwr, 1, dptr, dlen); if (is_uchars) WRITE_UCHARS (jsonwr, 1, dptr, dlen);
else WRITE_BYTES_ESC (jsonwr, dptr, dlen); else WRITE_BYTES_ESC (jsonwr, dptr, dlen);
@ -1298,7 +1331,7 @@ int mio_jsonwr_writeintmax (mio_jsonwr_t* jsonwr, mio_intmax_t v)
mio_bch_t tmp[((MIO_SIZEOF_UINTMAX_T * MIO_BITS_PER_BYTE) / 3) + 3]; /* there can be a sign. so +3 instead of +2 */ mio_bch_t tmp[((MIO_SIZEOF_UINTMAX_T * MIO_BITS_PER_BYTE) / 3) + 3]; /* there can be a sign. so +3 instead of +2 */
mio_oow_t len; mio_oow_t len;
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
len = mio_fmt_intmax_to_bcstr(tmp, MIO_COUNTOF(tmp), v, 10, 0, '\0', MIO_NULL); len = mio_fmt_intmax_to_bcstr(tmp, MIO_COUNTOF(tmp), v, 10, 0, '\0', MIO_NULL);
WRITE_BYTES_NOESC (jsonwr, tmp, len); WRITE_BYTES_NOESC (jsonwr, tmp, len);
return 0; return 0;
@ -1315,7 +1348,7 @@ int mio_jsonwr_writeuintmax (mio_jsonwr_t* jsonwr, mio_uintmax_t v)
mio_bch_t tmp[((MIO_SIZEOF_UINTMAX_T * MIO_BITS_PER_BYTE) / 3) + 2]; mio_bch_t tmp[((MIO_SIZEOF_UINTMAX_T * MIO_BITS_PER_BYTE) / 3) + 2];
mio_oow_t len; mio_oow_t len;
PREACTION_FOR_VLAUE (jsonwr, sn); PREACTION_FOR_VALUE (jsonwr, sn);
len = mio_fmt_uintmax_to_bcstr(tmp, MIO_COUNTOF(tmp), v, 10, 0, '\0', MIO_NULL); len = mio_fmt_uintmax_to_bcstr(tmp, MIO_COUNTOF(tmp), v, 10, 0, '\0', MIO_NULL);
WRITE_BYTES_NOESC (jsonwr, tmp, len); WRITE_BYTES_NOESC (jsonwr, tmp, len);
return 0; return 0;