include/json_parse.h - master - superterminator/JsonParse

include/json_parse.h
101 строка3 KB
superterminator
initial commit
15 сен 2024, 11:40
15 сен 2024, 11:40f4b359b
#pragma once
#ifndef TOOLS_JSON_28_04_2019
#define TOOLS_JSON_28_04_2019

#include "tools_import.h"

#define ERR_JSON_SUCCESS             0x0
#define ERR_JSON_BAD_PARAMS          0x1
#define ERR_JSON_BAD_SYNTAX          0x2
#define ERR_JSON_MEMORY              0x3
#define ERR_JSON_BAD_VALUE_TYPE      0x4
#define ERR_JSON_NO_FIELD            0x5
#define ERR_JSON_INSUFFICIENT_BUFFER 0x6
#define ERR_JSON_UNKNOWN             0xFF

#ifdef __cplusplus
extern "C"
{
#endif

    enum JsonTokenType
    {
        JsonTokenNone,
        JsonTokenString,//like "name" - quoted
        JsonTokenValue,//not quoted
        JsonTokenComma,
        JsonTokenColon,
        JsonTokenSqBracketL,
        JsonTokenSqBracketR,
        JsonTokenCurBracketL,
        JsonTokenCurBracketR,
        JsonTokenTotal,
    };

    struct JsonToken
    {
        enum JsonTokenType type;
        const char* text;
        int len;
    };

    enum JsonNodeType
    {
        JsonNodeUnknown = 0,
        JsonNodeObject,//named, like "name":{}
        JsonNodeObjectValue,//like {}
        JsonNodeArray,//named, like "name1":[]
        JsonNodeArrayValue,//like []
        JsonNodeField,//named, like "name":val
        JsonNodeString, //string, like "name" or "val", its length is with quotes. "val" have length of 5
        JsonNodeValue, //324, or True, or 432.21
        JsonNodeKeyword,//[]{},:
        JsonNodeCommaNamed,//internal type like "name1":val1,"name2":val2
        JsonNodeCommaFields,//internal type like val1,val2
        JsonNodeCommaObjects,//internal type like {},{}
        JsonNodeCommaArrays,//internal type like [],[]
        JsonNodeTotal
    };

    struct JsonTokenList
    {
        struct JsonToken token;
        struct JsonTokenList* next;
    };

    struct JsonNode
    {
        enum JsonNodeType type;
        const struct JsonToken* token;
        struct JsonNode* subnodes;
        struct JsonNode* next;
        struct JsonNode* prev;
        struct JsonNode* parent;
    };

    struct JsonDocument
    {
        char* text;
        int text_length;
        struct JsonNode* nodes;
        struct JsonTokenList* tokens;
    };

    EXPORT_IMPORT_TOOLS_PREFIX int init_json_document(struct JsonDocument** obj, char* text);
    EXPORT_IMPORT_TOOLS_PREFIX void deinit_json_document(struct JsonDocument** ptr);

    //need this one, some fields can guide processing of another
    EXPORT_IMPORT_TOOLS_PREFIX int get_subnode_named(const char* name, const struct JsonNode* parent_node, const struct JsonNode** subnode);
    
    EXPORT_IMPORT_TOOLS_PREFIX int get_str_int_value(const char* str, int str_length,   int* out);
    EXPORT_IMPORT_TOOLS_PREFIX int get_str_float_value(const char* str, int str_length, float* out);

    EXPORT_IMPORT_TOOLS_PREFIX int get_subnode_named_int_value(const char* name, const struct JsonNode* parent_node, int* out);
    EXPORT_IMPORT_TOOLS_PREFIX int get_subnode_named_float_value(const char* name, const struct JsonNode* parent_node, float* out);
    EXPORT_IMPORT_TOOLS_PREFIX int get_subnode_named_str_value(const char* name, const struct JsonNode* parent_node, char* out, int max_len);

#ifdef __cplusplus
}
#endif

#endif