struct jx * nvpair_to_jx( struct nvpair *nv )
{
struct jx *object = jx_object(0);
char *key;
char *value;
struct jx *jvalue;
long long integer_value;
double double_value;
nvpair_first_item(nv);
while(nvpair_next_item(nv,&key,&value)) {
if(!strcmp(value,"true")) {
jvalue = jx_boolean(1);
} else if(!strcmp(value,"false")) {
jvalue = jx_boolean(0);
} else if(!strcmp(value,"null")) {
jvalue = jx_null();
} else if(string_is_integer(value,&integer_value)) {
jvalue = jx_integer(integer_value);
} else if(string_is_float(value,&double_value)) {
jvalue = jx_double(double_value);
} else if(value[0]=='[' || value[0]=='{') {
jvalue = jx_parse_string(value);
if(!jvalue) jvalue = jx_string(value);
} else {
jvalue = jx_string(value);
}
jx_insert(object,jx_string(key),jvalue);
}
return object;
}
static struct jx * jx_eval_null( jx_operator_t op )
{
switch(op) {
case JX_OP_EQ:
return jx_boolean(1);
case JX_OP_NE:
case JX_OP_LT:
case JX_OP_LE:
case JX_OP_GT:
case JX_OP_GE:
return jx_boolean(0);
default:
return jx_null();
}
}
struct jx *jx_copy( struct jx *j )
{
if(!j) return 0;
switch(j->type) {
case JX_NULL:
return jx_null();
case JX_DOUBLE:
return jx_double(j->u.double_value);
case JX_BOOLEAN:
return jx_boolean(j->u.boolean_value);
case JX_INTEGER:
return jx_integer(j->u.integer_value);
case JX_SYMBOL:
return jx_symbol(j->u.symbol_name);
case JX_STRING:
return jx_string(j->u.string_value);
case JX_ARRAY:
return jx_array(jx_item_copy(j->u.items));
case JX_OBJECT:
return jx_object(jx_pair_copy(j->u.pairs));
case JX_OPERATOR:
return jx_operator(j->u.oper.type,jx_copy(j->u.oper.left),jx_copy(j->u.oper.right));
case JX_FUNCTION:
return jx_function(j->u.func.function, jx_copy(j->u.func.arguments));
case JX_ERROR:
return jx_error(jx_copy(j->u.err));
}
/* not reachable, but some compilers complain. */
return 0;
}
struct jx * jx_parse( struct jx_parser *s )
{
jx_token_t t = jx_scan(s);
switch(t) {
case JX_TOKEN_EOF:
return 0;
case JX_TOKEN_LBRACE:
return jx_object(jx_parse_pair_list(s));
case JX_TOKEN_LBRACKET:
return jx_array(jx_parse_item_list(s));
case JX_TOKEN_STRING:
return jx_string(s->token);
case JX_TOKEN_INTEGER:
return jx_integer(s->integer_value);
case JX_TOKEN_DOUBLE:
return jx_double(s->double_value);
case JX_TOKEN_TRUE:
return jx_boolean(1);
case JX_TOKEN_FALSE:
return jx_boolean(0);
case JX_TOKEN_NULL:
return jx_null();
case JX_TOKEN_SYMBOL:
if(s->strict_mode) {
jx_parse_error(s,"symbols are not allowed in strict parsing mode");
return 0;
} else {
return jx_symbol(s->token);
}
case JX_TOKEN_RBRACE:
case JX_TOKEN_RBRACKET:
case JX_TOKEN_COMMA:
case JX_TOKEN_COLON:
case JX_TOKEN_ERROR:
jx_parse_error(s,"unexpected token");
return 0;
}
/*
We shouldn't get here, since all the token types
should be handled above. But just in case...
*/
jx_parse_error(s,"parse error");
return 0;
}
static struct jx * jx_eval_integer( jx_operator_t op, struct jx *left, struct jx *right )
{
jx_int_t a = left ? left->u.integer_value : 0;
jx_int_t b = right ? right->u.integer_value : 0;
switch(op) {
case JX_OP_EQ:
return jx_boolean(a==b);
case JX_OP_NE:
return jx_boolean(a!=b);
case JX_OP_LT:
return jx_boolean(a<b);
case JX_OP_LE:
return jx_boolean(a<=b);
case JX_OP_GT:
return jx_boolean(a>b);
case JX_OP_GE:
return jx_boolean(a>=b);
case JX_OP_ADD:
return jx_integer(a+b);
case JX_OP_SUB:
return jx_integer(a-b);
case JX_OP_MUL:
return jx_integer(a*b);
case JX_OP_DIV:
if(b==0) return jx_null();
return jx_integer(a/b);
case JX_OP_MOD:
if(b==0) return jx_null();
return jx_integer(a%b);
default:
return jx_null();
}
}
static struct jx * jx_eval_string( jx_operator_t op, struct jx *left, struct jx *right )
{
const char *a = left ? left->u.string_value : "";
const char *b = right ? right->u.string_value : "";
switch(op) {
case JX_OP_EQ:
return jx_boolean(0==strcmp(a,b));
case JX_OP_NE:
return jx_boolean(0!=strcmp(a,b));
case JX_OP_LT:
return jx_boolean(strcmp(a,b)<0);
case JX_OP_LE:
return jx_boolean(strcmp(a,b)<=0);
case JX_OP_GT:
return jx_boolean(strcmp(a,b)>0);
case JX_OP_GE:
return jx_boolean(strcmp(a,b)>=0);
case JX_OP_ADD:
return jx_format("%s%s",a,b);
default:
return jx_null();
}
}
static struct jx * jx_eval_double( jx_operator_t op, struct jx *left, struct jx *right )
{
double a = left ? left->u.double_value : 0;
double b = right ? right->u.double_value : 0;
switch(op) {
case JX_OP_EQ:
return jx_boolean(a==b);
break;
case JX_OP_NE:
return jx_boolean(a!=b);
break;
case JX_OP_LT:
return jx_boolean(a<b);
break;
case JX_OP_LE:
return jx_boolean(a<=b);
break;
case JX_OP_GT:
return jx_boolean(a>b);
break;
case JX_OP_GE:
return jx_boolean(a>=b);
break;
case JX_OP_ADD:
return jx_double(a+b);
break;
case JX_OP_SUB:
return jx_double(a-b);
break;
case JX_OP_MUL:
return jx_double(a*b);
break;
case JX_OP_DIV:
if(b==0) return jx_null();
return jx_double(a/b);
case JX_OP_MOD:
if(b==0) return jx_null();
return jx_double((jx_int_t)a%(jx_int_t)b);
default:
return jx_null();
}
}
static struct jx * jx_eval_boolean( jx_operator_t op, struct jx *left, struct jx *right )
{
int a = left ? left->u.boolean_value : 0;
int b = right ? right->u.boolean_value : 0;
switch(op) {
case JX_OP_EQ:
return jx_boolean(a==b);
case JX_OP_NE:
return jx_boolean(a!=b);
case JX_OP_LT:
return jx_boolean(a<b);
case JX_OP_LE:
return jx_boolean(a<=b);
case JX_OP_GT:
return jx_boolean(a>b);
case JX_OP_GE:
return jx_boolean(a>=b);
case JX_OP_ADD:
return jx_boolean(a|b);
case JX_OP_MUL:
return jx_boolean(a&b);
case JX_OP_AND:
return jx_boolean(a&&b);
case JX_OP_OR:
return jx_boolean(a||b);
case JX_OP_NOT:
return jx_boolean(!b);
case JX_OP_LOOKUP:
return jx_null();
default:
return jx_boolean(0);
}
}
static struct jx * jx_eval_operator( struct jx_operator *o, struct jx *context )
{
if(!o) return 0;
struct jx *left = jx_eval(o->left,context);
struct jx *right = jx_eval(o->right,context);
if((left && right) && (left->type!=right->type) ) {
if( left->type==JX_INTEGER && right->type==JX_DOUBLE) {
struct jx *n = jx_double(left->u.integer_value);
jx_delete(left);
left = n;
} else if( left->type==JX_DOUBLE && right->type==JX_INTEGER) {
struct jx *n = jx_double(right->u.integer_value);
jx_delete(right);
right = n;
} else if(o->type==JX_OP_EQ) {
jx_delete(left);
jx_delete(right);
return jx_boolean(0);
} else if(o->type==JX_OP_NE) {
jx_delete(left);
jx_delete(right);
return jx_boolean(1);
} else if(o->type==JX_OP_LOOKUP) {
struct jx *r = jx_eval_lookup(left,right);
jx_delete(left);
jx_delete(right);
return r;
} else {
jx_delete(left);
jx_delete(right);
return jx_null();
}
}
struct jx *result;
switch(right->type) {
case JX_NULL:
result = jx_eval_null(o->type);
break;
case JX_BOOLEAN:
result = jx_eval_boolean(o->type,left,right);
break;
case JX_INTEGER:
result = jx_eval_integer(o->type,left,right);
break;
case JX_DOUBLE:
result = jx_eval_double(o->type,left,right);
break;
case JX_STRING:
result = jx_eval_string(o->type,left,right);
break;
default:
result = jx_null();
break;
}
jx_delete(left);
jx_delete(right);
return result;
}
