141 lines
3.8 KiB
C++
141 lines
3.8 KiB
C++
#ifndef CODERS_JSON_H_
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#define CODERS_JSON_H_
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#include <vector>
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#include <string>
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#include <stdint.h>
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#include <stdexcept>
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#include <unordered_map>
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typedef unsigned int uint;
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namespace json {
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typedef double number_t;
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class JObject;
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class JArray;
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class Value;
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extern std::string escape(std::string s);
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extern std::string stringify(JObject* obj, bool nice, std::string indent);
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class parsing_error : public std::runtime_error {
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public:
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std::string filename;
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std::string source;
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uint pos;
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uint line;
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uint linestart;
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parsing_error(std::string message,
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std::string filename,
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std::string source,
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uint pos,
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uint line,
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uint linestart);
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std::string errorLog() const;
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};
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enum class valtype {
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object, array, number, string, boolean
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};
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union valvalue {
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JObject* obj;
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JArray* arr;
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std::string* str;
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number_t num;
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bool boolean;
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};
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class Value {
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public:
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valtype type;
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valvalue value;
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Value(valtype type, valvalue value);
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~Value();
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};
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class JArray {
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public:
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std::vector<Value*> values;
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~JArray();
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std::string str(size_t index) const;
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number_t num(size_t index) const;
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JObject* obj(size_t index) const;
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JArray* arr(size_t index) const;
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bool flag(size_t index) const;
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inline size_t size() const {
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return values.size();
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}
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JArray& put(uint value);
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JArray& put(int value);
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JArray& put(float value);
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JArray& put(number_t value);
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JArray& put(std::string value);
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JArray& put(JObject* value);
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JArray& put(JArray* value);
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JArray& put(bool value);
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};
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class JObject {
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public:
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std::unordered_map<std::string, Value*> map;
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~JObject();
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void str(std::string key, std::string& dst) const;
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void num(std::string key, int& dst) const;
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void num(std::string key, float& dst) const;
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void num(std::string key, uint& dst) const;
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void num(std::string key, number_t& dst) const;
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JObject* obj(std::string key) const;
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JArray* arr(std::string key) const;
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void flag(std::string key, bool& dst) const;
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JObject& put(std::string key, uint value);
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JObject& put(std::string key, int value);
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JObject& put(std::string key, float value);
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JObject& put(std::string key, number_t value);
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JObject& put(std::string key, std::string value);
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JObject& put(std::string key, JObject* value);
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JObject& put(std::string key, JArray* value);
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JObject& put(std::string key, bool value);
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};
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class Parser {
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std::string filename;
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std::string source;
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uint pos = 0;
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uint line = 0;
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uint linestart = 0;
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void skipWhitespace();
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void expect(char expected);
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char peek();
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char nextChar();
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bool hasNext();
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std::string parseName();
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int64_t parseSimpleInt(int base);
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number_t parseNumber(int sign);
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std::string parseString(char chr);
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JArray* parseArray();
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JObject* parseObject();
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Value* parseValue();
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parsing_error error(std::string message);
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public:
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Parser(std::string filename, std::string source);
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JObject* parse();
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};
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extern JObject* parse(std::string filename, std::string source);
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extern JObject* parse(std::string source);
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}
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#endif // CODERS_JSON_H_
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