99 lines
2.9 KiB
C
99 lines
2.9 KiB
C
// This file is part of noxos and licensed under the MIT open source license
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#ifndef NOXOS_JSON_H
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#define NOXOS_JSON_H
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#include "utils/string.h"
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#include "utils/stdtypes.h"
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/*
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* JSON node schematic
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*
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* +-----------+
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* +----------| Root Node |------------+
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* | +-----------+ |
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* | ^ |
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* | | |
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* [childs_start] /----[parent]------\ [childs_end]
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* | / | \ |
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* v / | \ v
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* +------+ +------+ +------+
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* | Node |--[next]->| Node |--[next]->| Node |
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* | |<-[prev]--| |<-[prev]--| | ---> . . .
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* +------+ +------+ +------+
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*
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* |
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* v
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* . . .
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*
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* */
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#define JSON_INCREMENT_TOKEN_ID \
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*token_id += 1; \
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/* DEBUG("token: %d - %s", *token_id, json->tokens[*token_id].string);*/ \
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if (*token_id >= json->num_tokens) { \
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log(LOG_ERROR, "failed to parse json -> unexpected EOF"); \
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json_node_dump(json->root_node, 0); \
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return false; \
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}
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typedef enum {
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JSON_TOKEN_NUMERIC,
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JSON_TOKEN_TEXT,
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JSON_TOKEN_STRING,
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JSON_TOKEN_SPECIAL
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} json_token_type_E;
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typedef enum {
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JSON_NODE_OBJECT,
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JSON_NODE_ARRAY,
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JSON_NODE_STRING,
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JSON_NODE_NUMBER,
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JSON_NODE_BOOL,
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JSON_NODE_NULL
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} json_node_type_E;
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typedef struct {
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json_token_type_E type;
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uint64_t value;
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string_t string;
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uint32_t line;
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uint32_t column;
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} json_token_T;
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typedef struct json_node_T json_node_T;
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struct json_node_T {
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json_node_type_E type;
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string_t string;
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uint64_t value;
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json_node_T* parent;
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json_node_T* childs_start;
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json_node_T* childs_end;
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json_node_T* prev;
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json_node_T* next;
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};
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typedef struct {
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json_token_T* tokens;
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uint64_t num_tokens;
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void* string_buffer;
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json_node_T* root_node;
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} json_T;
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json_T* json_from_string (string_t str);
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void json_destruct (json_T* json);
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json_node_T* json_node_alloc (json_node_T* parent, json_node_type_E type, json_token_T* token);
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void json_node_destruct (json_node_T* node);
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void json_node_dump (json_node_T* node, uint32_t indent);
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string_t json_node_type_to_string (json_node_type_E type);
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void json_tokenize (json_T* json, string_t str);
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bool json_parse (json_T* json);
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bool json_parse_assignment (json_T* json, uint32_t* token_id, json_node_T* node);
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bool json_parse_object (json_T* json, uint32_t* token_id, json_node_T* node);
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bool json_parse_array (json_T* json, uint32_t* token_id, json_node_T* node);
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#endif //NOXOS_JSON_H
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