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pdjson.h
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pdjson.h
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#ifndef PDJSON_H
#define PDJSON_H
#ifndef PDJSON_SYMEXPORT
# define PDJSON_SYMEXPORT
#endif
#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
#include <stdbool.h>
#else
#ifndef bool
#define bool int
#define true 1
#define false 0
#endif /* bool */
#endif /* __STDC_VERSION__ */
#include <stdio.h>
enum json_type {
JSON_ERROR = 1, JSON_DONE,
JSON_OBJECT, JSON_OBJECT_END, JSON_ARRAY, JSON_ARRAY_END,
JSON_STRING, JSON_NUMBER, JSON_TRUE, JSON_FALSE, JSON_NULL
};
struct json_allocator {
void *(*malloc) (size_t);
void *(*realloc) (void *, size_t);
void (*free) (void *);
};
typedef int (*json_user_io) (void *user);
typedef struct json_stream json_stream;
typedef struct json_allocator json_allocator;
PDJSON_SYMEXPORT void json_open_buffer (json_stream * json, const void *buffer, size_t size);
PDJSON_SYMEXPORT void json_open_string (json_stream * json, const char *string);
PDJSON_SYMEXPORT void json_open_stream (json_stream * json, FILE * stream);
PDJSON_SYMEXPORT void json_open_user (json_stream * json, json_user_io get, json_user_io peek,
void *user);
PDJSON_SYMEXPORT void json_close (json_stream * json);
PDJSON_SYMEXPORT void json_set_allocator (json_stream * json, json_allocator * a);
PDJSON_SYMEXPORT void json_set_streaming (json_stream * json, bool mode);
PDJSON_SYMEXPORT enum json_type json_next (json_stream * json);
PDJSON_SYMEXPORT enum json_type json_peek (json_stream * json);
PDJSON_SYMEXPORT void json_reset (json_stream * json);
PDJSON_SYMEXPORT const char *json_get_string (json_stream * json, size_t *length);
PDJSON_SYMEXPORT double json_get_number (json_stream * json);
PDJSON_SYMEXPORT enum json_type json_skip (json_stream * json);
PDJSON_SYMEXPORT enum json_type json_skip_until (json_stream * json, enum json_type type);
PDJSON_SYMEXPORT size_t json_get_lineno (json_stream * json);
PDJSON_SYMEXPORT size_t json_get_position (json_stream * json);
PDJSON_SYMEXPORT size_t json_get_depth (json_stream * json);
PDJSON_SYMEXPORT enum json_type json_get_context (json_stream * json, size_t *count);
PDJSON_SYMEXPORT const char *json_get_error (json_stream * json);
PDJSON_SYMEXPORT int json_source_get (json_stream * json);
PDJSON_SYMEXPORT int json_source_peek (json_stream * json);
PDJSON_SYMEXPORT bool json_isspace (int c);
/* internal */
struct json_source {
int (*get) (struct json_source *);
int (*peek) (struct json_source *);
size_t position;
union {
struct {
FILE *stream;
} stream;
struct {
const char *buffer;
size_t length;
} buffer;
struct {
void *ptr;
json_user_io get;
json_user_io peek;
} user;
} source;
};
struct json_stream {
size_t lineno;
struct json_stack *stack;
size_t stack_top;
size_t stack_size;
enum json_type next;
unsigned flags;
struct {
char *string;
size_t string_fill;
size_t string_size;
} data;
size_t ntokens;
struct json_source source;
struct json_allocator alloc;
char errmsg[128];
};
#endif