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Patrick Pelissier committed 2017-07-08 12:57:28 +02:00
1 parent 5be073b9bd
commit ec4c12eab5
1 file changed
+17 -11
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example/ex-multi03.c
+17 -11
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@@ -1,8 +1,8 @@
#include <time.h> #include <time.h>
#include <stdio.h> #include <stdio.h>
/* Register a dynamic seed to M*LIB. /* Register a dynamic seed to M*LIB hash function.
Shall be done before any M*LIB header inclusion. */ This shall be done before any M*LIB header inclusion. */
unsigned long long rand_seed; unsigned long long rand_seed;
#define M_HASH_SEED rand_seed #define M_HASH_SEED rand_seed
@@ -14,11 +14,12 @@ unsigned long long rand_seed;
/* This example will show how to create JSON-like files. /* This example will show how to create JSON-like files.
This is a JSON **like** syntax, not exactly JSON format */ This is a JSON **like** syntax, not exactly JSON format */
/* OUT/IN of boolean */ /* First let's handle the OUT/IN functions of boolean */
static inline void boolean_out_str(FILE *f, bool b) static inline void boolean_out_str(FILE *f, bool b)
{ {
fprintf(f, b ? "TRUE" : "FALSE"); fprintf(f, b ? "TRUE" : "FALSE");
} }
static inline bool boolean_in_str(bool *b, FILE *f) static inline bool boolean_in_str(bool *b, FILE *f)
{ {
char c = fgetc(f); char c = fgetc(f);
@@ -45,17 +46,19 @@ static inline bool boolean_in_str(bool *b, FILE *f)
} }
} }
/* OUT/IN of float */ /* Then the OUT/IN functions of float */
static inline void real_out_str(FILE *f, float r) static inline void real_out_str(FILE *f, float r)
{ {
fprintf(f, "%f", r); fprintf(f, "%f", r);
} }
static inline bool real_in_str(float *r, FILE *f) static inline bool real_in_str(float *r, FILE *f)
{ {
return fscanf(f, "%f", r) == 1; return fscanf(f, "%f", r) == 1;
} }
/* Header definition */
/* Let's define the header & its interface */
typedef struct json_node_s *json_t; typedef struct json_node_s *json_t;
@@ -68,9 +71,10 @@ extern void json_set (json_t *, json_t);
extern void json_out_str(FILE *, json_t); extern void json_out_str(FILE *, json_t);
extern bool json_in_str(json_t *, FILE *); extern bool json_in_str(json_t *, FILE *);
#define JSON_OPLIST (INIT(json_init M_IPTR), CLEAR(json_clear), \ #define JSON_OPLIST \
INIT_SET(json_init_set M_IPTR), SET(json_set M_IPTR),\ (INIT(json_init M_IPTR), CLEAR(json_clear), \
OUT_STR(json_out_str), IN_STR(json_in_str M_IPTR) ) INIT_SET(json_init_set M_IPTR), SET(json_set M_IPTR), \
OUT_STR(json_out_str), IN_STR(json_in_str M_IPTR) )
DICT_DEF2(json, string_t, STRING_OPLIST, json_t, JSON_OPLIST) DICT_DEF2(json, string_t, STRING_OPLIST, json_t, JSON_OPLIST)
@@ -155,14 +159,15 @@ static json_t generate(void)
array_json_t a; array_json_t a;
string_t s; string_t s;
/* This is low level generation as it is an example */ /* This is a low level generation for example */
json_init_new(&p); json_init_new(&p);
json_init_new(&k); json_init_new(&k);
array_json_init(a); array_json_init(a);
dict_json_init(d); dict_json_init(d);
string_init (s); string_init (s);
/* { channel: TRUE, filter: 2.3, tab: [2., 3.] } */ /* Let's generate the following structure :
{ channel: TRUE, filter: 2.3, tab: [2., 3.] } */
variant_json_set_boolean(k->json, true); variant_json_set_boolean(k->json, true);
dict_json_set_at(d, STRING_CTE("channel"), k); dict_json_set_at(d, STRING_CTE("channel"), k);
variant_json_set_real(k->json, 2.3); variant_json_set_real(k->json, 2.3);
@@ -194,7 +199,8 @@ int main(void)
json_out_str(stdout, p); json_out_str(stdout, p);
/* Typical Output: /* Typical Output:
@dict@{"filter":@real@2.300000@,"tab":@array@[@real@2.000000@,@real@3.000000@]@,"channel":@boolean@TRUE@}@ @dict@{"filter":@real@2.300000@,"tab":@array@[@real@2.000000@,@real@3.000000@]@,"channel":@boolean@TRUE@}@
*/ If you want a true JSON format, you'll have to overload the variant IN/OUT function so that they
can detect the type of argument and, as such, don't need to output it in the format */
printf("\n"); printf("\n");
json_clear(p); json_clear(p);
return 0; return 0;