142 lines
2.4 KiB
C
142 lines
2.4 KiB
C
#ifndef JV_H
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#define JV_H
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#include <jansson.h>
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#include <stdint.h>
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#include <assert.h>
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static json_t* jv_lookup(json_t* t, json_t* k) {
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json_t* v;
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if (json_is_object(t) && json_is_string(k)) {
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v = json_object_get(t, json_string_value(k));
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} else if (json_is_array(t) && json_is_number(k)) {
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v = json_array_get(t, json_integer_value(k));
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} else {
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assert(0&&"bad lookup");
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}
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if (v)
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return v;
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else
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return json_null();
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}
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static json_t* jv_modify(json_t* t, json_t* k, json_t* v) {
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t = json_copy(t);
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if (json_is_object(t) && json_is_string(k)) {
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json_object_set(t, json_string_value(k), v);
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} else if (json_is_array(t) && json_is_number(k)) {
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json_array_set(t, json_integer_value(k), v);
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} else {
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assert(0 && "bad mod");
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}
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return t;
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}
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static json_t* jv_insert(json_t* root, json_t* value, json_t** path, int pathlen) {
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if (pathlen == 0) {
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return value;
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}
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return jv_modify(root, *path, jv_insert(jv_lookup(root, *path), value, path+1, pathlen-1));
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}
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typedef enum {
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JV_KIND_NULL,
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JV_KIND_FALSE,
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JV_KIND_TRUE,
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JV_KIND_NUMBER,
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JV_KIND_STRING,
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JV_KIND_OBJECT,
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JV_KIND_ARRAY
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} jv_kind;
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typedef struct {
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size_t count;
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} jv_refcnt;
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typedef struct{
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jv_refcnt* ptr;
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int i[2];
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} jv_complex;
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typedef struct {
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jv_kind kind;
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union {
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double number;
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jv_complex complex;
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} val;
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} jv;
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/*
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* All jv_* functions consume (decref) input and produce (incref) output
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* Except jv_copy
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*/
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jv_kind jv_get_kind(jv);
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jv jv_copy(jv);
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void jv_free(jv);
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int jv_equal(jv, jv);
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jv jv_null();
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jv jv_true();
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jv jv_false();
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jv jv_number(double);
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double jv_number_value(jv);
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jv jv_array();
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jv jv_array_sized(int);
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int jv_array_length(jv);
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jv jv_array_get(jv, int);
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jv jv_array_set(jv, int, jv);
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jv jv_array_append(jv, jv);
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jv jv_array_concat(jv, jv);
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jv jv_array_slice(jv, int, int);
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jv jv_string(char*);
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jv jv_string_sized(char*, int);
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int jv_string_length(jv);
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uint32_t jv_string_hash(jv);
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const char* jv_string_value(jv);
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jv jv_object();
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jv jv_object_get(jv object, jv key);
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jv jv_object_set(jv object, jv key, jv value);
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jv jv_object_delete(jv object, jv key);
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int jv_object_iter(jv);
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int jv_object_iter_next(jv, int);
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int jv_object_iter_valid(jv, int);
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jv jv_object_iter_key(jv, int);
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jv jv_object_iter_value(jv, int);
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#endif
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/*
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true/false/null:
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check kind
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number:
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introduce/eliminate jv
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to integer
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array:
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copy
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free
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slice
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index
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update
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updateslice?
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*/
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