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parser.y
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%{
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>
#include "utils.h"
#include "dbg.h"
#include "cJSON.h"
#include "cvector.h"
#define YYDEBUG 1
extern FILE *yyin;
extern int yylex();
extern void yyerror(struct cJSON** jso, const char*);
static cJSON *macro_map = NULL;
char **keylist_vec = NULL;
%}
%parse-param {struct cJSON **jso}
%union {
int intval;
int *intsval;
char *strval;
struct cJSON *jsonval;
struct object *objval;
}
%token LCURLY RCURLY LBRAC RBRAC LMBRAC RMBRAC COMMA SEMIC
%token STRING SEQUENCE BOOLEAN ENUM STRUCT PRAGMA_KEYLIST
%token <strval> NUMBER;
%token <strval> VARIABLE;
%token <strval> MACRO;
%token <intval> INTEGER;
%type <jsonval> value
%type <jsonval> values
%type <jsonval> member
%type <jsonval> members
%type <objval> data_type
%type <intval> data_dim
%type <intsval> data_dims
%type <strval> variables
%%
start: values
{
*jso = $1;
}
| error
;
values: value
{
log_info("Value terminate");
$$ = cJSON_CreateArray();
cJSON_AddItemToArray($$, $1);
}
| values value
{
log_info("values value");
if ($2) cJSON_AddItemToArray($$, $2);
}
;
value: STRUCT VARIABLE LCURLY members RCURLY SEMIC
{
log_info("STRUCT VARIABLE LCURLY members RCURLY");
$$ = cJSON_CreateObject();
cJSON_AddItemToObject($$, $2, $4);
}
| ENUM VARIABLE LCURLY members RCURLY SEMIC
{
log_info("ENUM VARIABLE LCURLY members RCURLY");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, "ENUM", $2);
}
| VARIABLE VARIABLE LMBRAC INTEGER RMBRAC SEMIC
{
log_info("VARIABLE VARIABLE LMBRAC INTEGER RMBRAC");
$$ = cJSON_CreateObject();
char tmp[64] = {0};
snprintf(tmp, 64, "ARRAY%s%s", $1, $2);
cJSON_AddNumberToObject($$, tmp, $4);
}
| MACRO
{
log_info("MACRO");
char *val = $1;
while (*val != ' ') val++;
*val++ = '\0';
while (*val == ' ') val++;
if (macro_map == NULL) {
macro_map = cJSON_CreateObject();
}
cJSON_AddStringToObject(macro_map, $1, val);
$$ = NULL;
}
| PRAGMA_KEYLIST variables
{
log_info("PRAGMA_KEYLIST");
cvector_push_back(keylist_vec, $2);
$$ = NULL;
}
;
variables : VARIABLE
{
$$ = $1;
}
| variables VARIABLE
{
$$ = $1;
}
members: member
{
log_info("member");
$$ = cJSON_CreateArray();
cJSON_AddItemToArray($$, $1);
}
| members member
{
log_info("members member");
cJSON_AddItemToArray($$, $2);
}
;
member: data_type VARIABLE SEMIC
{
switch ($1->type)
{
case OBJECT_TYPE_NUMBER:
log_info("NUMBER VARIABLE SEMIC");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, "NUMBER", $2);
break;
case OBJECT_TYPE_BOOLEAN:
log_info("BOOLEAN VARIABLE SEMIC");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, "BOOLEAN", $2);
break;
case OBJECT_TYPE_STRING:
log_info("STRING VARIABLE SEMIC");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, "STRING", $2);
break;
case OBJECT_TYPE_STRING_T:
log_info("STRING TEMPLATE VARIABLE SEMIC");
char tmp[64] = { 0 };
snprintf(tmp, 64, "STRING_T_%s", $1->data);
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, tmp, $2);
break;
case OBJECT_TYPE_ARRAY:
log_info("ARRAY VARIABLE SEMIC");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, $1->data, $2);
break;
case OBJECT_TYPE_SEQUENCE:
log_info("SEQUENCE VARIABLE SEMIC");
snprintf(tmp, 64, "sequence_%s", $1->data);
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, tmp, $2);
break;
default:
log_err("Unsupport type: %d", $1->type);
break;
}
}
| data_type VARIABLE data_dims SEMIC
{
log_info("LBRAC data_type RBRAC");
char tmp[64];
size_t size = 0;
switch ($1->type)
{
case OBJECT_TYPE_NUMBER:
size = snprintf(tmp, 64, "ARRAY_NUMBER_%s", $1->data);
break;
case OBJECT_TYPE_BOOLEAN:
size = snprintf(tmp, 64, "ARRAY_BOOLEAN_%s", $1->data);
break;
case OBJECT_TYPE_STRING:
size = snprintf(tmp, 64, "ARRAY_STRING_%s", $1->data);
break;
case OBJECT_TYPE_STRING_T:
size = snprintf(tmp, 64, "ARRAY_STRING_T_%s", $1->data);
break;
default:
log_err("Unsupport type: %d", $1->type);
break;
}
char *where = tmp + size;
for (int i = 0; i < cvector_size($3); i++) {
size = snprintf(where, 64, "_%d", $3[i]);
where = where + size;
}
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, tmp, $2);
}
| VARIABLE VARIABLE data_dims SEMIC
{
log_info("VARIABLE VARIABLE data_dims SEMIC");
char tmp[64];
size_t size = 0;
size = snprintf(tmp, 64, "ARRAY_STRUCT_%s@", $1);
char *where = tmp + size;
for (int i = 0; i < cvector_size($3); i++) {
size = snprintf(where, 64, "_%d", $3[i]);
where = where + size;
}
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, tmp, $2);
}
| VARIABLE VARIABLE SEMIC
{
log_info("VARIABLE VARIABLE SEMIC");
$$ = cJSON_CreateObject();
cJSON_AddStringToObject($$, $1, $2);
}
| VARIABLE COMMA
{
log_info("VARIABLE SEMIC");
}
| VARIABLE
{
log_info("VARIABLE");
}
;
data_type: NUMBER
{
log_info("NUMBER");
$$ = object_alloc(OBJECT_TYPE_NUMBER, $1);
}
| BOOLEAN
{
log_info("BOOLEAN");
$$ = object_alloc(OBJECT_TYPE_BOOLEAN, "bool");
}
| STRING
{
log_info("STRING");
$$ = object_alloc(OBJECT_TYPE_STRING, "string");
}
| VARIABLE
{
log_info("VARIABLE");
char tmp[64] = { 0 };
snprintf(tmp, 64, "struct_%s", $1);
$$ = object_alloc(OBJECT_TYPE_STRUCT, tmp);
}
| STRING LBRAC INTEGER RBRAC
{
log_info("STRING LBRAC INTEGER RBRAC");
char tmp[32] = { 0 };
snprintf(tmp, 32, "string_%d", $3);
$$ = object_alloc(OBJECT_TYPE_STRING_T, tmp);
}
| SEQUENCE LBRAC data_type RBRAC
{
log_info("SEQUENCE LBRAC data_type RBRAC");
char tmp[64] = { 0 };
switch ($3->type)
{
case OBJECT_TYPE_NUMBER:
case OBJECT_TYPE_BOOLEAN:
case OBJECT_TYPE_STRING:
log_info("NUMBER/BOOLEAN/STRING VARIABLE SEMIC");
snprintf(tmp, 64, "%s", $3->data);
break;
case OBJECT_TYPE_STRING_T:
log_info("STRING TEMPLATE VARIABLE SEMIC");
snprintf(tmp, 64, "%s", $3->data);
break;
case OBJECT_TYPE_ARRAY:
log_info("ARRAY VARIABLE SEMIC");
snprintf(tmp, 64, "%s", $3->data);
break;
case OBJECT_TYPE_SEQUENCE:
snprintf(tmp, 64, "sequence_%s", $3->data);
log_info("SEQUENCE VARIABLE SEMIC");
break;
case OBJECT_TYPE_STRUCT:
snprintf(tmp, 64, "%s", $3->data);
log_info("STRUCT VARIABLE SEMIC");
break;
default:
log_err("Unsupport type: %d", $3->type);
break;
}
$$ = object_alloc(OBJECT_TYPE_SEQUENCE, tmp);
log_info("%s", tmp);
}
| SEQUENCE LBRAC data_type COMMA INTEGER RBRAC
{
log_info("SEQUENCE LBRAC data_type COMMA INTEGER RBRAC");
$$ = object_alloc(OBJECT_TYPE_SEQUENCE, $3->data);
log_info("%s", $3->data);
}
data_dims: data_dim
{
log_info("data_dim");
$$ = NULL;
cvector_push_back($$, $1);
}
| data_dims data_dim
{
log_info("data_dims data_dim");
cvector_push_back($$, $2);
}
data_dim: LMBRAC INTEGER RMBRAC
{
log_info("LMBRAC INTEGER RMBRAC");
$$ = $2;
}
| LMBRAC VARIABLE RMBRAC
{
log_info("LMBRAC VARIABLE RMBRAC");
cJSON *ele = NULL;
char *val = NULL;
cJSON_ArrayForEach(ele, macro_map) {
if (ele && strcmp(ele->string, $2) == 0) {
val = ele->valuestring;
break;
}
}
long rc = atol(val);
if (rc == 0) {
sscanf(val, "(%ld)", &rc);
}
$$ = rc;
}
%%
void yyerror(struct cJSON **jso, const char *s)
{
fprintf(stderr, "error: %s\n", s);
}