Waybar/include/util/json.hpp

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#pragma once
#include <fmt/ostream.h>
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#include <json/json.h>
#include <algorithm>
#include <codecvt>
#include <iostream>
#include <locale>
#include <regex>
#if (FMT_VERSION >= 90000)
template <>
struct fmt::formatter<Json::Value> : ostream_formatter {};
#endif
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namespace waybar::util {
class JsonParser {
public:
JsonParser() = default;
Json::Value parse(const std::string& jsonStr) {
Json::Value root;
// replace all occurrences of "\x" with "\u00", because JSON doesn't allow "\x" escape sequences
std::string modifiedJsonStr = replaceHexadecimalEscape(jsonStr);
std::istringstream jsonStream(modifiedJsonStr);
std::string errs;
if (!Json::parseFromStream(m_readerBuilder, jsonStream, &root, &errs)) {
throw std::runtime_error("Error parsing JSON: " + errs);
}
return root;
}
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private:
Json::CharReaderBuilder m_readerBuilder;
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static std::string replaceHexadecimalEscape(const std::string& str) {
static std::regex re("\\\\x");
return std::regex_replace(str, re, "\\u00");
}
};
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} // namespace waybar::util