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stedolan-jq/jv.h
David Tolnay 16e8d0b1ab detect invalid path expression (fix #862)
2015-07-24 20:23:07 -07:00

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7.2 KiB
C
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#ifndef JV_H
#define JV_H
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
typedef enum {
JV_KIND_INVALID,
JV_KIND_NULL,
JV_KIND_FALSE,
JV_KIND_TRUE,
JV_KIND_NUMBER,
JV_KIND_STRING,
JV_KIND_ARRAY,
JV_KIND_OBJECT
} jv_kind;
struct jv_refcnt;
/* All of the fields of this struct are private.
Really. Do not play with them. */
typedef struct {
unsigned char kind_flags;
unsigned char pad_;
unsigned short offset; /* array offsets */
int size;
union {
struct jv_refcnt* ptr;
double number;
} u;
} jv;
/*
* All jv_* functions consume (decref) input and produce (incref) output
* Except jv_copy
*/
jv_kind jv_get_kind(jv);
const char* jv_kind_name(jv_kind);
static int jv_is_valid(jv x) { return jv_get_kind(x) != JV_KIND_INVALID; }
jv jv_copy(jv);
void jv_free(jv);
int jv_get_refcnt(jv);
int jv_equal(jv, jv);
int jv_identical(jv, jv);
int jv_contains(jv, jv);
jv jv_invalid(void);
jv jv_invalid_with_msg(jv);
jv jv_invalid_get_msg(jv);
int jv_invalid_has_msg(jv);
jv jv_null(void);
jv jv_true(void);
jv jv_false(void);
jv jv_bool(int);
jv jv_number(double);
double jv_number_value(jv);
int jv_is_integer(jv);
jv jv_array(void);
jv jv_array_sized(int);
int jv_array_length(jv);
jv jv_array_get(jv, int);
jv jv_array_set(jv, int, jv);
jv jv_array_append(jv, jv);
jv jv_array_concat(jv, jv);
jv jv_array_slice(jv, int, int);
jv jv_array_indexes(jv, jv);
#define jv_array_foreach(a, i, x) \
for (int jv_len__ = jv_array_length(jv_copy(a)), i=0, jv_j__ = 1; \
jv_j__; jv_j__ = 0) \
for (jv x; \
i < jv_len__ ? \
(x = jv_array_get(jv_copy(a), i), 1) : 0; \
i++)
#define JV_ARRAY_1(e) (jv_array_append(jv_array(),e))
#define JV_ARRAY_2(e1,e2) (jv_array_append(JV_ARRAY_1(e1),e2))
#define JV_ARRAY_3(e1,e2,e3) (jv_array_append(JV_ARRAY_2(e1,e2),e3))
#define JV_ARRAY_4(e1,e2,e3,e4) (jv_array_append(JV_ARRAY_3(e1,e2,e3),e4))
#define JV_ARRAY_5(e1,e2,e3,e4,e5) (jv_array_append(JV_ARRAY_4(e1,e2,e3,e4),e5))
#define JV_ARRAY_6(e1,e2,e3,e4,e5,e6) (jv_array_append(JV_ARRAY_5(e1,e2,e3,e4,e5),e6))
#define JV_ARRAY_7(e1,e2,e3,e4,e5,e6,e7) (jv_array_append(JV_ARRAY_6(e1,e2,e3,e4,e5,e6),e7))
#define JV_ARRAY_8(e1,e2,e3,e4,e5,e6,e7,e8) (jv_array_append(JV_ARRAY_7(e1,e2,e3,e4,e5,e6,e7),e8))
#define JV_ARRAY_9(e1,e2,e3,e4,e5,e6,e7,e8,e9) (jv_array_append(JV_ARRAY_8(e1,e2,e3,e4,e5,e6,e7,e8),e9))
#define JV_ARRAY_IDX(_1,_2,_3,_4,_5,_6,_7,_8,_9,NAME,...) NAME
#define JV_ARRAY(...) \
JV_ARRAY_IDX(__VA_ARGS__, JV_ARRAY_9, JV_ARRAY_8, JV_ARRAY_7, JV_ARRAY_6, JV_ARRAY_5, JV_ARRAY_4, JV_ARRAY_3, JV_ARRAY_2, JV_ARRAY_1)(__VA_ARGS__)
#ifdef __GNUC__
#define JV_PRINTF_LIKE(fmt_arg_num, args_num) \
__attribute__ ((__format__( __printf__, fmt_arg_num, args_num)))
#define JV_VPRINTF_LIKE(fmt_arg_num) \
__attribute__ ((__format__( __printf__, fmt_arg_num, 0)))
#endif
jv jv_string(const char*);
jv jv_string_sized(const char*, int);
jv jv_string_empty(int len);
int jv_string_length_bytes(jv);
int jv_string_length_codepoints(jv);
unsigned long jv_string_hash(jv);
const char* jv_string_value(jv);
jv jv_string_indexes(jv j, jv k);
jv jv_string_slice(jv j, int start, int end);
jv jv_string_concat(jv, jv);
jv jv_string_vfmt(const char*, va_list) JV_VPRINTF_LIKE(1);
jv jv_string_fmt(const char*, ...) JV_PRINTF_LIKE(1, 2);
jv jv_string_append_codepoint(jv a, uint32_t c);
jv jv_string_append_buf(jv a, const char* buf, int len);
jv jv_string_append_str(jv a, const char* str);
jv jv_string_split(jv j, jv sep);
jv jv_string_explode(jv j);
jv jv_string_implode(jv j);
jv jv_object(void);
jv jv_object_get(jv object, jv key);
jv jv_object_set(jv object, jv key, jv value);
jv jv_object_delete(jv object, jv key);
int jv_object_length(jv object);
jv jv_object_merge(jv, jv);
jv jv_object_merge_recursive(jv, jv);
int jv_object_iter(jv);
int jv_object_iter_next(jv, int);
int jv_object_iter_valid(jv, int);
jv jv_object_iter_key(jv, int);
jv jv_object_iter_value(jv, int);
#define jv_object_foreach(t, k, v) \
for (int jv_i__ = jv_object_iter(t), jv_j__ = 1; jv_j__; jv_j__ = 0) \
for (jv k, v; \
jv_object_iter_valid((t), jv_i__) ? \
(k = jv_object_iter_key(t, jv_i__), \
v = jv_object_iter_value(t, jv_i__), \
1) \
: 0; \
jv_i__ = jv_object_iter_next(t, jv_i__)) \
#define JV_OBJECT_1(k) (jv_object_set(jv_object(),(k),jv_null()))
#define JV_OBJECT_2(k1,v1) (jv_object_set(jv_object(),(k1),(v1)))
#define JV_OBJECT_3(k1,v1,k2) (jv_object_set(JV_OBJECT_2(k1,v1),k2,jv_null()))
#define JV_OBJECT_4(k1,v1,k2,v2) (jv_object_set(JV_OBJECT_2(k1,v1),k2,v2))
#define JV_OBJECT_5(k1,v1,k2,v2,k3) (jv_object_set(JV_OBJECT_4(k1,v1,k2,v2),k3,jv_null))
#define JV_OBJECT_6(k1,v1,k2,v2,k3,v3) (jv_object_set(JV_OBJECT_4(k1,v1,k2,v2),k3,v3))
#define JV_OBJECT_7(k1,v1,k2,v2,k3,v3,k4) (jv_object_set(JV_OBJECT_6(k1,v1,k2,v2,k3,v3),k4,jv_null()))
#define JV_OBJECT_8(k1,v1,k2,v2,k3,v3,k4,v4) (jv_object_set(JV_OBJECT_6(k1,v1,k2,v2,k3,v3),k4,v4))
#define JV_OBJECT_IDX(_1,_2,_3,_4,_5,_6,_7,_8,NAME,...) NAME
#define JV_OBJECT(...) \
JV_OBJECT_IDX(__VA_ARGS__, JV_OBJECT_8, JV_OBJECT_7, JV_OBJECT_6, JV_OBJECT_5, JV_OBJECT_4, JV_OBJECT_3, JV_OBJECT_2, JV_OBJECT_1)(__VA_ARGS__)
int jv_get_refcnt(jv);
enum jv_print_flags {
JV_PRINT_PRETTY = 1,
JV_PRINT_ASCII = 2,
JV_PRINT_COLOUR = 4,
JV_PRINT_SORTED = 8,
JV_PRINT_INVALID = 16,
JV_PRINT_REFCOUNT = 32,
JV_PRINT_TAB = 64,
JV_PRINT_ISATTY = 128,
JV_PRINT_SPACE0 = 256,
JV_PRINT_SPACE1 = 512,
JV_PRINT_SPACE2 = 1024,
};
#define JV_PRINT_INDENT_FLAGS(n) \
((n) < 0 || (n) > 7 ? JV_PRINT_TAB | JV_PRINT_PRETTY : (n) == 0 ? 0 : (n) << 8 | JV_PRINT_PRETTY)
void jv_dumpf(jv, FILE *f, int flags);
void jv_dump(jv, int flags);
void jv_show(jv, int flags);
jv jv_dump_string(jv, int flags);
char *jv_dump_string_trunc(jv x, char *outbuf, size_t bufsize);
enum {
JV_PARSE_SEQ = 1,
JV_PARSE_STREAMING = 2,
JV_PARSE_STREAM_ERRORS = 4,
};
jv jv_parse(const char* string);
jv jv_parse_sized(const char* string, int length);
typedef void (*jv_nomem_handler_f)(void *);
void jv_nomem_handler(jv_nomem_handler_f, void *);
jv jv_load_file(const char *, int);
typedef struct jv_parser jv_parser;
jv_parser* jv_parser_new(int);
void jv_parser_set_buf(jv_parser*, const char*, int, int);
int jv_parser_remaining(jv_parser*);
jv jv_parser_next(jv_parser*);
void jv_parser_free(jv_parser*);
jv jv_get(jv, jv);
jv jv_set(jv, jv, jv);
jv jv_has(jv, jv);
jv jv_setpath(jv, jv, jv);
jv jv_getpath(jv, jv);
jv jv_delpaths(jv, jv);
jv jv_keys(jv /*object or array*/);
jv jv_keys_unsorted(jv /*object or array*/);
int jv_cmp(jv, jv);
jv jv_group(jv, jv);
jv jv_sort(jv, jv);
#endif
/*
true/false/null:
check kind
number:
introduce/eliminate jv
to integer
array:
copy
free
slice
index
update
updateslice?
*/
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