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enhanced mio_json_instcb_t to accept a position with a parent container

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hyung-hwan
2020-06-06 18:53:09 +00:00
parent fef7c29e70
commit 2174c1bd9b
3 changed files with 104 additions and 47 deletions
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89
mio/lib/json.c
View File

@ -108,6 +108,7 @@ static int push_read_state (mio_json_t* json, mio_json_state_t state)
ss->state = state;
ss->level = json->state_stack->level; /* copy from the parent */
ss->index = 0;
ss->next = json->state_stack;
json->state_stack = ss;
@ -144,18 +145,53 @@ static void pop_all_read_states (mio_json_t* json)
static int invoke_data_inst (mio_json_t* json, mio_json_inst_t inst)
{
if (json->state_stack->state == MIO_JSON_STATE_IN_DIC && json->state_stack->u.id.state == 1)
{
if (inst != MIO_JSON_INST_STRING)
{
mio_seterrbfmt (json->mio, MIO_EINVAL, "dictionary key not a string - %.*js", json->tok.len, json->tok.ptr);
return -1;
}
mio_json_state_node_t* ss;
int is_dic_val = 0;
inst = MIO_JSON_INST_KEY;
ss = json->state_stack;
if (ss->state == MIO_JSON_STATE_IN_DIC)
{
if (ss->u.id.state == 1) /* got colon */
{
/* this is called after the reader has seen a colon.
* the data item must be used as a key */
if (inst != MIO_JSON_INST_STRING)
{
mio_seterrbfmt (json->mio, MIO_EINVAL, "dictionary key not a string - %.*js", json->tok.len, json->tok.ptr);
return -1;
}
inst = MIO_JSON_INST_KEY;
}
else
{
/* if this variable is non-zero, level is set to 0 regardless of actual level */
is_dic_val = 1;
}
}
return json->instcb(json, inst, json->state_stack->level, &json->tok, json->rctx);
switch (inst)
{
case MIO_JSON_INST_START_ARRAY:
if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1;
json->state_stack->u.ia.got_value = 0;
json->state_stack->level++;
if (ss->state != MIO_JSON_STATE_IN_DIC || ss->u.id.state == 1) ss->index++;
return json->instcb(json, inst, (is_dic_val? 0: json->state_stack->level - 1), ss->index - 1, MIO_NULL, json->rctx);
case MIO_JSON_INST_START_DIC:
if (push_read_state(json, MIO_JSON_STATE_IN_DIC) <= -1) return -1;
json->state_stack->u.id.state = 0;
json->state_stack->level++;
if (ss->state != MIO_JSON_STATE_IN_DIC || ss->u.id.state == 1) ss->index++;
return json->instcb(json, inst, (is_dic_val? 0: json->state_stack->level - 1), ss->index - 1, MIO_NULL, json->rctx);
default:
if (ss->state != MIO_JSON_STATE_IN_DIC || ss->u.id.state == 1) ss->index++;
return json->instcb(json, inst, (is_dic_val? 0: json->state_stack->level), ss->index - 1, &json->tok, json->rctx);
}
}
static int handle_string_value_char (mio_json_t* json, mio_ooci_t c)
@ -331,21 +367,14 @@ static int handle_word_value_char (mio_json_t* json, mio_ooci_t c)
static int handle_start_char (mio_json_t* json, mio_ooci_t c)
{
printf ("HANDLE START CHAR [%c]\n", c);
if (c == '[')
{
if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1;
json->state_stack->u.ia.got_value = 0;
if (json->instcb(json, MIO_JSON_INST_START_ARRAY, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
json->state_stack->level++;
if (invoke_data_inst(json, MIO_JSON_INST_START_ARRAY) <= -1) return -1;
return 1;
}
else if (c == '{')
{
if (push_read_state(json, MIO_JSON_STATE_IN_DIC) <= -1) return -1;
json->state_stack->u.id.state = 0;
if (json->instcb(json, MIO_JSON_INST_START_DIC, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
json->state_stack->level++;
if (invoke_data_inst(json, MIO_JSON_INST_START_DIC) <= -1) return -1;
return 1;
}
#if 0
@ -367,7 +396,7 @@ static int handle_char_in_array (mio_json_t* json, mio_ooci_t c)
{
if (c == ']')
{
if (json->instcb(json, MIO_JSON_INST_END_ARRAY, json->state_stack->level - 1, MIO_NULL, json->rctx) <= -1) return -1;
if (json->instcb(json, MIO_JSON_INST_END_ARRAY, json->state_stack->level - 1, json->state_stack->index, MIO_NULL, json->rctx) <= -1) return -1;
pop_read_state (json);
return 1;
}
@ -417,18 +446,12 @@ static int handle_char_in_array (mio_json_t* json, mio_ooci_t c)
}
else if (c == '[')
{
if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1;
json->state_stack->u.ia.got_value = 0;
if (json->instcb(json, MIO_JSON_INST_START_ARRAY, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
json->state_stack->level++;
if (invoke_data_inst(json, MIO_JSON_INST_START_ARRAY) <= -1) return -1;
return 1;
}
else if (c == '{')
{
if (push_read_state(json, MIO_JSON_STATE_IN_DIC) <= -1) return -1;
json->state_stack->u.id.state = 0;
if (json->instcb(json, MIO_JSON_INST_START_DIC, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
json->state_stack->level++;
if (invoke_data_inst(json, MIO_JSON_INST_START_DIC) <= -1) return -1;
return 1;
}
else
@ -443,7 +466,7 @@ static int handle_char_in_dic (mio_json_t* json, mio_ooci_t c)
{
if (c == '}')
{
if (json->instcb(json, MIO_JSON_INST_END_DIC, json->state_stack->level - 1, MIO_NULL, json->rctx) <= -1) return -1;
if (json->instcb(json, MIO_JSON_INST_END_DIC, json->state_stack->level - 1, json->state_stack->index, MIO_NULL, json->rctx) <= -1) return -1;
pop_read_state (json);
return 1;
}
@ -508,18 +531,12 @@ static int handle_char_in_dic (mio_json_t* json, mio_ooci_t c)
}
else if (c == '[')
{
if (push_read_state(json, MIO_JSON_STATE_IN_ARRAY) <= -1) return -1;
json->state_stack->u.ia.got_value = 0;
json->state_stack->level++;
if (json->instcb(json, MIO_JSON_INST_START_ARRAY, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
if (invoke_data_inst(json, MIO_JSON_INST_START_ARRAY) <= -1) return -1;
return 1;
}
else if (c == '{')
{
if (push_read_state(json, MIO_JSON_STATE_IN_DIC) <= -1) return -1;
json->state_stack->u.id.state = 0;
json->state_stack->level++;
if (json->instcb(json, MIO_JSON_INST_START_DIC, json->state_stack->level, MIO_NULL, json->rctx) <= -1) return -1;
if (invoke_data_inst(json, MIO_JSON_INST_START_DIC) <= -1) return -1;
return 1;
}
else

2
mio/lib/mio-json.h
View File

@ -70,6 +70,7 @@ typedef int (*mio_json_instcb_t) (
mio_json_t* json,
mio_json_inst_t inst,
mio_oow_t level,
mio_oow_t index,
const mio_oocs_t* str,
void* ctx
);
@ -80,6 +81,7 @@ struct mio_json_state_node_t
{
mio_json_state_t state;
mio_oow_t level;
mio_oow_t index;
union
{
struct